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Open Access Article
1 - Fostering and flourishing cultural intelligence in organizations
Adham Zahedifar seyed masoud seyediOne of the effects of cultural intelligence is to increase the productivity of human resources of organizations.In business,cultural intelligence is an important source of productivity,and to get things done,workers and professionals need to apply the advice and support MoreOne of the effects of cultural intelligence is to increase the productivity of human resources of organizations.In business,cultural intelligence is an important source of productivity,and to get things done,workers and professionals need to apply the advice and support of others beyond the corporate hierarchy.The present study aimed to investigate the cultivation and flourishing of cultural intelligence in organizations.The case study of Fars Gas company which examines the age,gender,education and work experience of employees.the peresnt study is applied from the perspective of the objective and from the perspective of the metod of collecting desciptive data is correlational.The statistical population of the present study includes the employees of Fars Gas company which is equal to 700 people.The results of structural equation modeling showd that cultural intelligence has a significant effect on behavior and its effect on human capital productivity has a significant effect. Manuscript profile -
Open Access Article
2 - The measurement and analysis of sunflower producers, technical efficiency in khoy
ali bagerzadehRegarding the importance of sunflower in production of nuts and oil, it has been tried to calculate the production function of sunflower growers in khoy. To this purpose the timer linear programming (LP) method was used, which was based on a field research, using the cr MoreRegarding the importance of sunflower in production of nuts and oil, it has been tried to calculate the production function of sunflower growers in khoy. To this purpose the timer linear programming (LP) method was used, which was based on a field research, using the cross sectional data in 1387. The results obtained showed that the average technical efficiency of sunflower growers in Khoy was about %53, which in dicated the %47 wastage of the production resources. It was recognized that the lack of training and agricultural extension services were the effective social factors in technical workability of sunflower growers in Khoy. In conclusion, we suggest the governmental authorities to increase the allocated budget to promote the versatility of the sunflower growers and eliminate the unnecessary losses. Manuscript profile -
Open Access Article
3 - Performance Evaluation of Different Districts of the Shiraz City Municipality Using DEA based on financial indicators
Javad Gerami Majid SajjadiObjectives: The purpose of this research is to evaluate and rank the performance of various districts within the Shiraz municipality based on different financial criteria. Therefore, we evaluated the performance of 11 districts of Shiraz municipality in the second half MoreObjectives: The purpose of this research is to evaluate and rank the performance of various districts within the Shiraz municipality based on different financial criteria. Therefore, we evaluated the performance of 11 districts of Shiraz municipality in the second half of 2022. Design/methodology/approach: Efficiency values were obtained for the areas using different technologies, and a suitable model was provided for the ineffective areas. The evaluation of the districts was based on input variables such as the number of employees, the area (in square meters) of the district building, and deferred income, as well as output variables including sold bonds, tax income, service income, and construction income. Input and output values were determined by consulting the informatics department of each district. Results: Based on the results, optimal performance recommendations can be made to senior managers of the municipality. Innovation: The current research is focused on evaluating financial aspect of performance in various districts of Shiraz Municipality. The goal is to find a suitable model for ranking these areas. This research can provide researchers and managers with an innovative perspective that can be applied in both theory and practice. Manuscript profile -
Open Access Article
4 - A mathematical programming model for measurement of the relative efficiency of Iranian industries
M.J . Asgharpour M.B.G. Arianezhad M. shokri M.A. KeramatiThis research propose a mathematical programming model for measurements the relative efficiency of Iranian industries four inputs and three outputs were used estimate the performance of 9 kind of industries for the period between 1358 and 1377. The statistical and theor MoreThis research propose a mathematical programming model for measurements the relative efficiency of Iranian industries four inputs and three outputs were used estimate the performance of 9 kind of industries for the period between 1358 and 1377. The statistical and theoretical data of the study approves that our proposed model can be employed as reliable and valid pattern. The result implies that any of 9 kind of industries is not to be preferred to each other. On the other word ;there is not any meaningful differences among this industries by considering the relative efficiency. Manuscript profile -
Open Access Article
5 - A mathematical programming model for measurement of the relative efficiency of Iranian industries
M. J. Asgharpour M. Ali. KeramatiThis research proposes a mathematical programming model for measurement of the relative efficiency ofIranian industries. Four inputs and three outputs were used to estimate the performance of 9 Kind ofindustries for the period between 1358 and 1377. The statistical and MoreThis research proposes a mathematical programming model for measurement of the relative efficiency ofIranian industries. Four inputs and three outputs were used to estimate the performance of 9 Kind ofindustries for the period between 1358 and 1377. The statistical and theoretical data of the study approvesthat our proposed model can be employed as reliable and valid pattern. The result implies that any of 9 kindof industries is not to be preferred to each other. On the other word; there is not any meaningful differencesamong this industries by considering the relative efficiency Manuscript profile -
Open Access Article
6 - To suggest Model for Determining of Faculty Members Workload in iran’s Higher Education
مینا جمشیدی JamshidiMeasuring the faculty workload as an instrument to find out the real standara workload through scientific indicators.The main objective of this research is to manage the faculty activities according to their prophecy and professional career which have not be MoreMeasuring the faculty workload as an instrument to find out the real standara workload through scientific indicators.The main objective of this research is to manage the faculty activities according to their prophecy and professional career which have not been under remarkable consideration. Based on the factor analysis out of the seven factors under inspection, a single one concluded based on the following categorization: Personal and professional growth 0/759 , counseling and academic services inside and outside the university as well as the society’s expectations 0/356, Research 0/736, Job Enrichment 0/460, Teaching and training 0/820, Managerial, Administrative, and official activities 0/644, Innovation and prospective research showed 0/844 of growth. The average of each agent according to Friedman Test was resulted as follows: Relationship is not strong and it is not easy to explain.Finally , by using the delfa style, new components were found for the domestic culture, and they were named political culture. By another method examining the leadership styles used by the managers in the governing bodies , new components were found and were named the covering style. Political culture is a collection of symbols, beliefs, experiences , and atlitudes in a valued administration that includes elements such as using values as a tool, ambiguous orienting, having connestions, short-time goal orienting , and a self decision marking atmosphere. Covering style is a collection of deeds and actions that managers use to achieve individual and group benefits, that includes element such as power relations trends, political bargaining , constitute satisfaction. Ingroup orienting , intuitional analysis of problems. Manuscript profile -
Open Access Article
7 - Evaluating impact Demand management policies (price and non price) on Energy conservation in IRAN using Energy system model
M. R. Sharifazadeh Ali A. EsmaeilniaEnergy as a fundamental factor of production processes an important place in the economics system so thatproviding secured energy is one of the most important problem for attaining sustained growth anddevelopment. Non consistency of domestic national product growth with MoreEnergy as a fundamental factor of production processes an important place in the economics system so thatproviding secured energy is one of the most important problem for attaining sustained growth anddevelopment. Non consistency of domestic national product growth with that of energy consumption growthin the country shows that energy productivity is reduced. Therefore for purposes of energy efficiency andenergy conservation you meet to apply appropriate policies for the country.Implementation of demand management, policy in line with rationalization of energy consumption, ispossible in the content of price and or non price policy or combination of there two. By using an energysystem model in the content of various scenario a suitable policy was chosen, and the result optimal showedthat potential for conservation in the case of using price scenario was much higher in combination of pricepolicy. But using a combination of price policy(moving towards prices with marginal cost) and non price(moving towards using of legal instruments, standards, regulations and….) can be a more suitable policypackage for the country. I fact evaluation results of policies in the content of five scenarios, showed thisfundamental finding that by implementing a combination of price policy and non price policy such as settingstandards, passing laws and applying regulations in line with increases in productivity and improvingtechnical efficiencies of energy consuming facilities, the country can benefit more of the results of demandmanagement policies. Manuscript profile -
Open Access Article
8 - Good Governance: Equilibrated Ecology
Gh. Memarzadeh J. Jassbi N. NafariGood governance is a common subject on development of countries. Economic, political and socialauthors and thinkers during two recent decades faced various comments on good governance. Any ofthem defines good governance with particular dimensions and characteristics.Thi MoreGood governance is a common subject on development of countries. Economic, political and socialauthors and thinkers during two recent decades faced various comments on good governance. Any ofthem defines good governance with particular dimensions and characteristics.This paper aimed to briefly review the literature of this subject and provides definitions of governanceusing a fresh view point and presents a novel model of good governance.Using two concepts of "ecology "and "decision making" there fore, this paper focuses on three majorcharacteristics, that’s "efficiency", "effectiveness" and "equilibrium of ecologic"This paper supposes good governance as a multi – face or plural concept including all aspects ofauthorizing and power. Each aspect of efficiency and effectiveness in this point is divided in toadministrative, economic, political and social components which indicating the focus of this paper onpluralism of governance. Characteristics and Indices are also presented for any of these components.Plotting the two dimensional diagram aims to show balances of efficiency and effectiveness andstudies various balances of countries ecological texture and categorizes them regarding to abovediagram and analyzes the governance condition in four different states through diagram. It finallyrecommends strategies to hold balance between two aforesaid aspects owing to different status ofgovernance in terms of balance line.This paper concludes that good governance is result of keeping balance between efficiency andeffectiveness along with continuous development of them and moving towards the higher levels ofbalance line. In other words, development is result of balance of rising trend of efficiency andeffectiveness. Manuscript profile -
Open Access Article
9 - Determining The Relationships Between Research and Development Activities and Production Efficiency (Case Study: China Industries of IRAN)
M. Taleghani M.B.G. ArianezhadExplaining and analyzing of factors related to production efficiency (PE) in direction of research and development (R&D) activities in china industries of Iran has been the main object of this research and the researcher is going to examine this problem base on a pa MoreExplaining and analyzing of factors related to production efficiency (PE) in direction of research and development (R&D) activities in china industries of Iran has been the main object of this research and the researcher is going to examine this problem base on a particular model which the research and development (R&D) activities through what kind of process and factors concluded to production efficiency (PE)? According to research’s point of view, research and development (R&D) activities is effected on applying modern knowledge and also it can be effected to quality improvement (QI) and waste reduction (WR) due to the development of production efficiency(PE) (Research model). For this purpose, the researcher analyses and reviews as per to this thesis, the situation of the units of research and development (R&D) activities china industries country and by using model testing analysied and evaluated of the rate of effectiveness the quality improvement (QI) and waste reduction (WR) properties to production efficiency (PE) assumed industries. In this manner it can be recognized the main points of production efficiency (PE) and developed the dimensions of quantitative and qualitative. This research is included in six chapters that in the first chapter, it discussed on general of research design according to precise technical which represented. In the second chapter the researcher has a summary survey on theorical principles of research literature frame and in the end of this chapter the studies and researches related to research objective has been analyzed and reviewed, too. In the third chapter has a glance at ratio theorical framework of causal models. In the fourth chapter, researcher tries to study and review the research methodology. In the most important chapter i.e the fifth chapter the researcher represents his scientific analysis about statistical statistical studies of research. And finally in the sixth chapter the researcher will bring to an end doing a series of conclution and represent some execution solution in order to production efficiency (PE) development in china industries of country. Manuscript profile -
Open Access Article
10 - Introduction and Testing of the Application of a Risk-Based Model in Operational Auditing
H. R. Vakilifard M. SalahinejadThe main objective of this dissertation is the introduction of a risk-based model for operationalauditing and testing its application in solving problems such as amount of fee, verification timeallocation and planning of an operational audit engagement. The Government A MoreThe main objective of this dissertation is the introduction of a risk-based model for operationalauditing and testing its application in solving problems such as amount of fee, verification timeallocation and planning of an operational audit engagement. The Government Audit Organizationstandards on risk concept, evidence and materiality are applied in the introduced model. The riskbasedmodel, as a tool of planning, assists the auditors in proceeding to an acceptable assurance level.The introduced model is applied in seven audit engagement and collected data from those engagementare compared with 10 audit engagement performed by Audit Organization during 2001 to 2007 andeffectivness, efficiency and economy of the model is measured. Effectiveness is defined as theaccomplished results, efficiency is defined as the way that results are accomplished and economy isdefined as the reduction of cost of the engagements.This research is qualitative, application oriented and based on constructivism philosophy . Theapproach of the research is deduction- induction and the strategy of the study is action research. Timehorizon of research is longitudal. In order to test the hypothesis , essential data is collected by likertquestionnaire and verification evidence of audits files. In this research SPSS NO.13 and Mann-Whitney and Wilcoxon non-parametric tests are used.The results of the study confirms following the hypothesis of the dissertation as follows:Using risk – based model increase the acceptable level of assurance, acceptable level of materialityand facilitates the preparation of the budget on the basis of the standards of operational auditingprocess.Using the risk- based model increases the efficiency index of "number of deficiencies / number ofteams member" and "number of offers / number of teams member" in operational auditing process.Using the risk- based model decreases the economy index of " actual hours / budgeted hours " inoperational auditing process. Manuscript profile -
Open Access Article
11 - Efficient patterns of knowledge management in supply chain
Jamshid Nazemi Zahra Torkashvand Reza Samizadeh Seyed shahrooz Seyedi hosseini niaKnowledge is known as the most important factor to achieve competitive advantage in advancedorganizations. Organizations with the capability of learning, will take the benefit of the organizationalknowledge. Therefore, in case organizations can adapt to changes they fac MoreKnowledge is known as the most important factor to achieve competitive advantage in advancedorganizations. Organizations with the capability of learning, will take the benefit of the organizationalknowledge. Therefore, in case organizations can adapt to changes they face, they may survive. In this study, theelements of knowledge management process in medium industrial organizations have been recognized. Thestructural model of knowledge management elements in these organizations has been developed. Our researchhas shown that all elements have not the same effect on knowledge management efficiency. The modeldeveloped shows different efficient patterns of knowledge management which can be selected by organizationswith respect to their internal strengths and capabilities. The patterns provided and its relationships will assistknowledge engineers and knowledge management process to utilize the best suitable approach for their specificrequirements. Manuscript profile -
Open Access Article
12 - Distinction Between The Inter-Group And Intera-Group Efficiency Using Data Envelopment Analysis (DEA)
H. Kiany H. GHodratiA Data Envelopment Analysis (DEA) Model is developed and applied as a tool for the ex-post-facto performance evaluation of making units (DMU’s) utilizing a surrogate measure of performance in the 0-1 range, for the efficiency of non-profit organizations. (e.g pub MoreA Data Envelopment Analysis (DEA) Model is developed and applied as a tool for the ex-post-facto performance evaluation of making units (DMU’s) utilizing a surrogate measure of performance in the 0-1 range, for the efficiency of non-profit organizations. (e.g public schools)for which the measure of performance may or may not be quantifiable. A population of DMU’s (school) in Kashan county, Iran, is the subject of our study. They are grouped by their differentiating factors and then an inter-group and an intra-group analysis of their performances is made, using the DEA methodology developed in this paper. A summary of the evaluations and performances as a conclusion is presented. Manuscript profile -
Open Access Article
13 - Evaluation of R&D projects with integrated BSC and DEA
Reza Radfar Fariba SalahiIn this article, a model has been provided in order to help to develop the selection andevaluation process of research and development projects in multi-projects organizations. Thisresearch is multi-criteria method for evaluation of R&D projects based on the integra MoreIn this article, a model has been provided in order to help to develop the selection andevaluation process of research and development projects in multi-projects organizations. Thisresearch is multi-criteria method for evaluation of R&D projects based on the integration of twodifferent management methodologies. Concepts of balanced scorecard (BSC) and dataenvelopment analysis (DEA) which each is a useful tool in measurements and analysis oforganization work, has been taken and combined in DEA-BSC model.This approach is based on data envelopment analysis, development of weight restriction,balanced scorecard and is following to secure three regular organization goals which areeffectiveness, efficiency, and balance (in use of inputs and outputs).In this article, two techniques of BSC in work index design part, and DAE technique inevaluation of decision making units part according to design indexes has been studies.At the end, DEA-BSC technique for evaluation of 25 projects in automobile part makingindustry has been used. Manuscript profile -
Open Access Article
14 - Evaluation of R&D projects with integrated BSC and DEA
Reza Radfar Fariba SalahiIn this article, a model has been provided in order to help to develop the selection andevaluation process of research and development projects in multi-projects organizations. Thisresearch is multi-criteria method for evaluation of R&D projects based on the integra MoreIn this article, a model has been provided in order to help to develop the selection andevaluation process of research and development projects in multi-projects organizations. Thisresearch is multi-criteria method for evaluation of R&D projects based on the integration of twodifferent management methodologies. Concepts of balanced scorecard (BSC) and dataenvelopment analysis (DEA) which each is a useful tool in measurements and analysis oforganization work, has been taken and combined in DEA-BSC model.This approach is based on data envelopment analysis, development of weight restriction,balanced scorecard and is following to secure three regular organization goals which areeffectiveness, efficiency, and balance (in use of inputs and outputs).In this article, two techniques of BSC in work index design part, and DAE technique inevaluation of decision making units part according to design indexes has been studies.At the end, DEA-BSC technique for evaluation of 25 projects in automobile part makingindustry has been used Manuscript profile -
Open Access Article
15 - Auditing management
امیر MosaviImprovement and growth in the activities of all organizations entails applying effective managerial tools. This articles tries to explain to control and guiding organizational objectives listed in articles of Association, Annual budgeting, etc. In this new area we sho MoreImprovement and growth in the activities of all organizations entails applying effective managerial tools. This articles tries to explain to control and guiding organizational objectives listed in articles of Association, Annual budgeting, etc. In this new area we shows How Auditing Management could be applicable in every organizations. Manuscript profile -
Open Access Article
16 - Calculation of full-energy peak efficiency of NaI (Tl) detectors by new analytical approach for parallelepiped sources
Ahmed M El-Khatib Mohamed S Badawi Mona M Gouda Slobodan I Jovanovic Aleksandar D Dlabac Nikola N Mihaljevic Sherif S Nafee Ekram A El-Mallah -
Open Access Article
17 - Influence of the hot filament on the electrical breakdown characteristics in the presence of Ar/N2
Arian Fateh Borkhari Kiomars Yasserian -
Open Access Article
18 - A study of the validity of the efficiency transfer method to calculate the peak efficiency using γ-ray detectors at extremely large distances
Ahmed M. El-Khatib Mohamed S. Badawi Mohamed A. Elzaher Abouzeid A. Thabet -
Open Access Article
19 - Effect of combined laser dyes on the efficiency of cholesteric liquid crystal lasers
Hamidreza Shirvani-Mahdavi Soheila Ebrahimi-Azandariani -
Open Access Article
20 - Effect of external applied electric field on the silicon solar cell’s thermodynamic efficiency
R. Zieba Falama Justin Mibaile E. Guemene Dountio Noël Djongyang Serge Y. Doka Timoleon C. Kofane -
Open Access Article
21 - Experimental measurements of a prototype high-concentration Fresnel lens and sun-tracking method for photovoltaic panel’s efficiency enhancement
Meraj Rajaee Seyed Mohamad Bagher Ghorashi -
Open Access Article
22 - Investigation of the impact of different ARC layers using PC1D simulation: application to crystalline silicon solar cells
Galib Hashmi Mohammad Junaebur Rashid Zahid Hasan Mahmood Mahbubul Hoq Md. Habibur Rahman -
Open Access Article
23 - Terahertz emission during laser-plasma interaction: effect of electron temperature and collisions
Hitendra K. Malik Divya Singh -
Open Access Article
24 - Energy optimization based on routing protocols in wireless sensor network
Zoleikha Azizi Kambiz Majidzadeh -
Open Access Article
25 - A Genetic Based Resource Management Algorithm Considering Energy Efficiency in Cloud Computing Systems
Marzieh Bozorgi Elize Ahmad KhademZadeh -
Open Access Article
26 - A Method for Measuring Energy Consumption in IaaS Cloud
Derdus Kenga Vincent Omwenga Patrick Ogao -
Open Access Article
27 - Performance Evaluation of Personnel of the Ministry of Oil Using Fuzzy Data Envelopment Analysis Method
amin alishahi farshid namamian ali reza moradi fakhredin marofiThe purpose of the present study is to design a model for evaluating the performance and efficiency of employees using the Normal and Fuzzy Data Envelopment Analysis In Headquarters of the Ministry of Oil. The statistical population of the study consisted of all the str MoreThe purpose of the present study is to design a model for evaluating the performance and efficiency of employees using the Normal and Fuzzy Data Envelopment Analysis In Headquarters of the Ministry of Oil. The statistical population of the study consisted of all the strategic units and headquarters of the Ministry of Oil. To collect data from the questionnaire And the Ministry of Petroleum Human Resource Databases. The research method was descriptive and survey. For data analysis, we used fuzzy data and input-oriented model (CCR). Results showed that 51 samples, 14 The staff of the Ministry of Oil are managed (0.24), there are 4 people on the efficient border (0.08) and 33 are inefficient (0.68), This indicates a low level of efficiency and effectiveness in the decision-making units of the ministry, which needs to train staff (empirical and academic) and attract specialized staff to improve productivity and efficiency That requires more careful planning. Manuscript profile -
Open Access Article
28 - Investigating the Effect of Balanced Scorecard Components on Individual Performance of Employees Based on the ACHEIVE Model (Case Study of the Judiciary Information and Statistics Center)
مقداد حاجی محمدعلی جهرمی Atena GhasemiThe organization is made up of a group of people who work together and have a mission ahead of them, requiring a proper strategy to accomplish. Balanced Scorecard is an effective and validated tool for responding to strategy realization. This research studies the effect MoreThe organization is made up of a group of people who work together and have a mission ahead of them, requiring a proper strategy to accomplish. Balanced Scorecard is an effective and validated tool for responding to strategy realization. This research studies the effect of balanced scorecard components on individual performance of staff based on the Achilles model. Research has not done so far to investigate the relationship between Balanced Scorecard and individual employee performance, which is considered to be the main innovation in this research. This research is applied in terms of purpose, and in terms of collecting data, a descriptive survey is a survey and correlation. The statistical population of this research is the executives, administrators and staff of the Judiciary Information and Statistics Center. The questionnaire with a Likert range of 46 questions was used to measure the variables of the research. The questionnaire was distributed among 100 executives and staff of the Judiciary Center for Statistics and Information Technology. The study of the impact of each of the components of the balanced scorecard on improving the individual performance of employees based on the Achilles model and the extent of this impact has been analyzed and analyzed. Manuscript profile -
Open Access Article
29 - Designing a structural model for the effect of strategic value of e-commerce on development of corporate entrepreneurship in an industrial unit
rihaneh mohammadi peyman akhavanEntrepreneurship is considered as the engine of industry development and the main factor of recreation organizational and economic capabilities. Accordingly, identification of the factors influencing it has been emphasized, with understanding this importance, the presen MoreEntrepreneurship is considered as the engine of industry development and the main factor of recreation organizational and economic capabilities. Accordingly, identification of the factors influencing it has been emphasized, with understanding this importance, the present study aims to examine the effect of the strategic value of e-commerce on organizational entrepreneurship. The research method, is descriptive and research project used, was based on Structural equations model. The statistical population is all personnel Hamvatan dairy to number 250 people. By using a stratified sampling method proportional to volume, 148 people were selected as a statistical sample and the research questionnaires were distributed among them. Data were gathered through two questionnaire, strategic value of e-commerce and enterprise entrepreneurship that were developed based on Five-point Likert scale. The data after collecting were analyzed by SPSS and LISREL and analyzed through Pearson correlation coefficient and structural equation model. The results showed that the strategic value of e-commerce and its dimensions, corporate support, managerial efficiency and help to decisions can be effective on the development of enterprise entrepreneurship. As a result, the factors that should be considered in developing organizational entrepreneurship is the strategic value of e-commerce. Manuscript profile -
Open Access Article
30 - Verification of The Paradox of Information Technology Productivity At the East Azerbaijan Tax Affairs Head Office (2017)
akbar pourhassan harzandi Gholamreza RahimiAbstractBackground: Despite the focus of information technology in the current world, productivity is considered as the main factor for the success of organizations. As a result, Investing in IT is widely regarded as having enormous potential for reducing costs, enhanci MoreAbstractBackground: Despite the focus of information technology in the current world, productivity is considered as the main factor for the success of organizations. As a result, Investing in IT is widely regarded as having enormous potential for reducing costs, enhancing productivity, and improving living standards.Purpose: The purpose of this study is to verify the paradox of IT efficiency by examining the impact of using information technology on productivity At the East Azerbaijan Tax Affairs Head Office from the perspective of the staff of this organization.Methodology: The method used in this research is descriptive-survey method and the sample is 256 managers and employees of the organization selected by targeted sampling method. In order to collect the data, a questionnaire of 30 questions was used.Findings: The results of this research show that the use of information technology At the East Azerbaijan Tax Affairs Head Office has increased the productivity of the organization.Conclusion: It is desirable for managers of the East Azerbaijan Tax Affairs Head Office to invest in targeted, optimal and effective IT facilities and equipment, seeking to improve their efficiency and effectiveness indicators, thereby increasing the productivity of their organization. Manuscript profile -
Open Access Article
31 - Investigating the effect of managers' on domestic financing policy and efficiency investment in companies listed on the Tehran Stock Exchange
Reza Setoodeh Amrolah Zeinali kermani Hadi Bakhsh TanyaniBackground: The present study recognizes and examines the interaction between management overconfidence, internal financing and efficiency investment, practical foundations for management, government and capital market players, including potential and actual investors, MoreBackground: The present study recognizes and examines the interaction between management overconfidence, internal financing and efficiency investment, practical foundations for management, government and capital market players, including potential and actual investors, etc. in order to It will provide more attention to the interaction between management overconfidence and other variables.Objective of this research: The purpose of this study is to investigate the effect of managers' on domestic financing policy and efficiency investment in companies listed on the Tehran Stock Exchange.Research Method: The statistical population of this research is the companies listed on the Tehran Stock Exchange. The period of 1390 to 1400 has been considered for this research. The data required for the research have been extracted from the financial information contained in the audited financial statements of statistical sample companies, Tadbir Pardaz software, New Rahavard software, Development Research and Islamic Studies management site of the Exchange and Securities Organization, as well as Kadal network. Spreadsheet (Excel) software has been used to prepare the necessary variables for use in hypothesis testing models. Eviews software, stata software and Spss software were used for final analysis. To analyze the data, the significance test of the mean differences using t-statistic and also, multivariate regression and logistic regression statistical models were used.Findings: According to the results of testing the first hypothesis, it shows that managers' overconfidence has a positive effect on investment efficiency on the amount of new investments in the company. In the second hypothesis test, the effect of senior managers' overconfidence on investment was investigated.Conclusion: The results of this study show that the amount of cash flow of each company has a direct effect on the sensitivity of investments and if the managers of companies have too much confidence, they have a great tendency to over-invest from the company's free cash flow. Manuscript profile -
Open Access Article
32 - Energy Carrier Consumption Optimization Policy in National Iranian Copper Industries Company (Case Study: Sarcheshmeh Copper Complex)
Mohammad Reza Fathi Adel Azar Gholam Reza Jandaghi shirin ranjebartotoyy babak azari reza mortazaiiBackground and Aim: Energy management and efficiency is one of the strategic policies of countries in supplying the required energy, responding to energy demand and addressing their environmental challenges and concerns. Therefore, the purpose of this study is to explai MoreBackground and Aim: Energy management and efficiency is one of the strategic policies of countries in supplying the required energy, responding to energy demand and addressing their environmental challenges and concerns. Therefore, the purpose of this study is to explain the policy of optimizing the production and consumption of energy carriers in Sarcheshmeh copper complex. Method: The present study has an exploratory approach in terms of purpose. The statistical population of this study includes copper industry experts in three categories of managers, heads and supervisors. Snowball sampling method was used to collect the sample and it was done until the theoretical saturation was reached. The number of statistical samples was 75 people. Research data were collected using semi-structured interviews. In this research, the qualitative method of content analysis (theme) and Atlas software (8) have been used. Findings: The research findings are presented in the form of a conceptual model for the factors affecting the optimization of energy consumption in Sarcheshmeh National Copper Company. This model includes 7 areas of environmental factors, production factors; Structural factors; Content_behavioral factors; Energy Management; Network energy efficiency and energy efficiency. Conclusion: The results of the study showed that; All areas of conceptual model, accelerating and facilitating factors, and barriers and limitations of energy consumption optimization are classified according to the conceptual model of energy management in May et al. (2016). Manuscript profile -
Open Access Article
33 - Ranking indicators of good governance in effective organizations (Case Study: branches of Refah bank in Qazvin Province)
Seyede Atefeh Yeganegi Seyyed Mehdi Alvani Gholamreza memarzadehGood governance is an emerging issue that has gained much attention in scientific and international societies during two recent decades. Some indices have been proposed for realization of good governance. Obviously, these indices differ regarding their weight and import MoreGood governance is an emerging issue that has gained much attention in scientific and international societies during two recent decades. Some indices have been proposed for realization of good governance. Obviously, these indices differ regarding their weight and importance for achieving ideal governance. The main question of the present study is to find out the importance and priority of each index in obtaining efficiency of units and organizations. Through a field survey, it was tried in the present research to study the indices of good governance in depth, to identify the efficient units using data envelopment analysis (DEA), and finally to prioritize the indices based on analytical hierarchy process (AHP). Statistical population includes the employees (n=41) of efficient branches of Refah Bank in Qazvin province The results obtained in this study indicated that out of six indices proposed for good governance, accountability has the highest priority; followed by rule of law and valuism. Manuscript profile -
Open Access Article
34 - A New Model for Evaluation of the Iran’s Public Policies Implementation in the Health and Treatment Sector
غلامرضا معمار زاده طهران ناصر میر سپاسی سودابه جلیلی This study is an attempt to evaluate the implementation of the general developmental policies of the Islamic Republic of Iran in the field of health and treatment ratified by the national Parliament (Majlis) of this country. In the course of this study, an ana More This study is an attempt to evaluate the implementation of the general developmental policies of the Islamic Republic of Iran in the field of health and treatment ratified by the national Parliament (Majlis) of this country. In the course of this study, an analysis of the Fourth National Development Plan of the Islamic Republic of Iran was conducted in order to achieve a reliable assessment model based on internationally accepted evaluation literature. To this mean, a pathological study of the development policies implementation in the course of Iran’s Fourth National Development Program (F.N.D.P.) was conducted. The efficiency rate of the implemented policies was classified and assessed according to the efficacy assessment criteria for the policy implementation especially the Matland’s synthesized ambiguity conflict model. Prior to this, the data collection procedure was performed through authoritative interviews and surveys. Te data collection was performed through survey and interviews with the expert active in the related fields. The findings of this research depict a vivid discrepancy between efficiency rates of different methods of implementation. Moreover, it is concluded that in order to achieve higher efficiency rates, allowance should be made for different criteria Manuscript profile -
Open Access Article
35 - The study of the relationship between employee's job and major and the rate of their efficiency working in oil company in the southern regions of Ahvaz
Mahnaz i Ahaki Abdolaziz HedayatiDezfuli Abdolkazem NeisiIt is strongly believed that there is a direct relationship between men's efficiency and the realization of their potentialities and practicalities. The present study aimed at investigating the correlation between employee's job and major and their efficiency in Oil Com MoreIt is strongly believed that there is a direct relationship between men's efficiency and the realization of their potentialities and practicalities. The present study aimed at investigating the correlation between employee's job and major and their efficiency in Oil Company in the southern regions of Ahvaz. The present research descriptive and correlative one whose goal is applicable to business purposes. The research data were collected through questionaire, approved by experts. The correlation coefficient was determined. Alpha Koronbach was used to specify the research constancy. The obtained indices were over %7 for all parts of questionnaire. The tests conducted to the subjects through spss software were independent T-test, and variance analysis. 236 employees out of 1007 were randomly chosen based on Morgan table. Statistical findings of the present research show that there is a positive and significant correlation between the subject's efficiency and their job and course of study. In addition, the findings reveal that there is no significant relationship between subjects' efficiency and their level of education, job background, marital status and so on. Manuscript profile -
Open Access Article
36 - بررسی معنویت در محیط کار و بهرهوری نیروی سازمانی در بانک گردشگری
zahra amirhosseini shadi ghobadiThe present study is considering the effect of spirituality in the workplace on organizational efficiency of the Bank 's tourism . Spirituality in the workplace is a significant component of the work , a feeling of solidarity and harmony with the values of the organiz MoreThe present study is considering the effect of spirituality in the workplace on organizational efficiency of the Bank 's tourism . Spirituality in the workplace is a significant component of the work , a feeling of solidarity and harmony with the values of the organization. The study is descriptive . The population of this research is all the employees of Tourism Bank . The instrument was questionnaire. The data analysis was performed using SPSS and Lisrel softwares . Survey results showed that the there is significant relationship between spirituality in the workplace and organizational productivity. Manuscript profile -
Open Access Article
37 - Investigating the effect of intellectual capital efficiency on productivity: Evidence from banks listed on Tehran Stock Exchange
Seyed fakhreddin FakhrhosseiniIn the current global economy, intellectual capital is progressively being acknowledged as a vital constituent of organizational value. The impetus for this awareness is a sequence of challenges in knowledge-based corporate settings that motivate firms to invest in inte MoreIn the current global economy, intellectual capital is progressively being acknowledged as a vital constituent of organizational value. The impetus for this awareness is a sequence of challenges in knowledge-based corporate settings that motivate firms to invest in intellectual capital, given that it has become a key driverof productivity.The present article aims to determine the relationship between intellectual capital and productivity in business of banks. In this study has been studied, a sample of 12 banks . The dependent variable is productivity and to measure this variable has been used by data envelopment analysis method. The period under study is from 2016 to 2016, which has been analyzed using the multiple regression test, the relationship between the components of intellectual capital and productivity. The results show that the intellectual capital and productivity have a significant relationship. The results of the regression analysis validate the relevance of intellectual capital in improving productivity in the banking industry. Manuscript profile -
Open Access Article
38 - Comparison of efficiency indicators of three domestic news agencies (Case study; IRNA, ISNA and ILNA)
Reza shokrgozar mohammad javad Rezaayan akbar asrollahi kasmanyThis research seeks to identify and compare the efficiency indicators of three domestic news agencies in terms of quantitative method and applied purpose. The research method is quantitative-survey and the method of data collection is a researcher-made comprehensive que MoreThis research seeks to identify and compare the efficiency indicators of three domestic news agencies in terms of quantitative method and applied purpose. The research method is quantitative-survey and the method of data collection is a researcher-made comprehensive questionnaire. The statistical sample was selected from 92 employees of three news agencies by simple random sampling.Findings and results of the research after conducting analytical tests, descriptive and inferential statistics analysis showed: audience news needs assessment, the most important and most widely used component of news agencies efficiency and meritocracy and maintaining the forces of having a skilled and transparent workforce in news, The least used component of efficiency is three news agencies and based on coefficients and average efficiency ratings: ISNA news agency with the highest scores, first news agency (most efficient), IRNA news agency with average scores, second news agency (more efficient) and ILNA news agency with lower scores, news agency It was ranked third (least efficient).The least used component of efficiency is three news agencies and based on coefficients and average efficiency ratings: ISNA news agency with the highest scores, first news agency (most efficient) ISNA news agency with the highest scores, first news agency (most efficient), IRNA news agency with average scores, second news agency (more efficient) and ILNA news agency with Manuscript profile -
Open Access Article
39 - Examining the effect of cultural values on enhancing the performance of the space in rural homes by relying on the role of behavioral patterns
Ali Akbar Heidari Maryam KiaeeCulture is a set of values that exists in a community or a nation and reflects the approach, think, believe, behaviors, and lifestyle of people. The notion of public culture refers to the common values that are common in society. These values are in the domain of thinki MoreCulture is a set of values that exists in a community or a nation and reflects the approach, think, believe, behaviors, and lifestyle of people. The notion of public culture refers to the common values that are common in society. These values are in the domain of thinking, belief, views, and structural aspects, as well as practical aspects such as the behavior and lifestyle of human beings, and are characterized by being collective and transformative. The views of some theoreticians in the field of housing and culture, especially traditional and rural housing, reflect the significant impact of culture on the physical aspects of space and current behavior patterns. On the one hand, Rapoport believes that from a far past, home for man has been more than shelter, and spiritual and religious aspects are fully evident throughout the construction process of the houses until it is established and used. On the other hand, the influence of cultural factors along with factors such as climate, building techniques, indigenous materials and etc., on the formation of the physical-spatial structure of the house is undeniable, and in some of its traditional types, the arrangement of various organs it significantly affects. The aim of this study is to investigate the effect of cultural values on the formation of behavioral patterns in the home environment­. Behavioral patterns are also dependent on the function and form of the house, which its proper shape has led to enhance the performance of the space function. The process of this research is defined in four stages. In the first stage, several cultural indicators were extracted as a sample of related literature and the behavioral dimensions associated with them were explained in the home environment. In the next step, the components of functional performance were investigated. These components were extracted through "space syntax" indicators and the collected data was evaluated and analyzed by "Depthmap" software used in the space layout method. The third stage consists of extracting the theoretical framework of research in which the relationship between elements of architecture affecting the functional efficiency and cultural values prevailing on the way of life is explained and, finally, in the fourth stage in order to demonstrate the hypothesis that the impact of the cultural values governing the lives of people on enhancing the performance of space in the home, the above are tested in two examples of rural - traditional homes. The results showed that the existence of cultural and spiritual values, in addition to the impacts on behavioral patterns and the arrangement of spaces in the internal environment, is also effective on improving the optimum functional performance of space in traditional homes and specifically rural settlements. Therefore, the goal of this study is to answer this question, “How can one affect the use of cultural values of inhabitants in the architecture of houses on formation of some behavioral and structural-physical forms in homes?”, In other words, can these behaviors lead to proper functioning of homes by adjusting the relationships of individuals in space? Manuscript profile -
Open Access Article
40 - Investigating the process of the descent of relative depth of space in improving the efficiency of the "courtyard" in traditional houses
Ali akbar Heidari maryam kiaeeThe purpose of this research is to evaluate and measure the efficiency of the yard space with an emphasis on the concept of functional radius in different types of traditional Iranian houses (Kashan & Esfehan). In reviewing the relative depth of sink function, it is MoreThe purpose of this research is to evaluate and measure the efficiency of the yard space with an emphasis on the concept of functional radius in different types of traditional Iranian houses (Kashan & Esfehan). In reviewing the relative depth of sink function, it is necessary to convert the quantitative data of the plan into quantitative data... In the physical composition of each home, spaces are divided into two categories: "service spaces" and "service spaces", where the combination of spaces together has a direct relationship with the function of the service provider or service provider. The layout model of the spaces of each home expresses the particular type of spatial relationships of that house, which is sometimes unique in buildings, and sometimes with a stable pattern, in the spatial relationship of the houses jointly observed. The purpose of this article is to examine the performance of the yard in a variety of Iranian house patterns, which is based on the definition of the functional radius of the yard in different patterns of the house. In order to test the above process, three different models of a gull, two gullies and three gullies in Kashan and three samples with the mentioned characteristics in Yazd were selected as case samples. In this research, in order to determine the functional efficiency of space, justification graphs and syntactical maths are used. Different parts of the house, like many other spaces, have spatial priorities and special rankings for better service and therefore a good performance. In the physical composition of each home, spaces are divided into two parts: "Service spaces" and "Service spaces", where the combination of spaces together has a direct relationship with the function of the service provider or service provider. The layout model of the spaces of each home expresses the particular type of spatial relationships of that house, which is sometimes unique in buildings, and sometimes with a stable pattern, in the spatial relationship of houses is seen jointly. The purpose of this article is to examine the performance of the yard in a variety of Iranian house patterns, which is based on the definition of the functional radius of the yard in different patterns of the house. In order to test the above process, three different models of a gull, two gullies and three gullies in Kashan and three samples with the mentioned characteristics in Yazd were selected as case samples. In this research, in order to determine the functional efficiency of space, justification graphs and syntactical maths are used. Accordingly, the research question in relation to the research goal is as follows:How does changing the functional radius in space increase or decrease the efficiency of the yard in the Iranian home?Accordingly, the hypothesis on the answer to the research question is as follows:The greater the functional radius of a space in the configuration of the building, the effective radius and the sphere of influence of that space decrease, and thus the efficiency of the space increases. Manuscript profile -
Open Access Article
41 - Evaluation of Urban Growth Boundary Definition in Urban Development Plans in Iran; Trough 11 Different Type of Iranian Cities Monitoring
Hamid Majedi Amir Hosein PourjohariOne of the most ingenuous realties about cities is their perdurability. Expansion of city peripheries –desired or not desired – causes such areas to be annexed to the main body of the city. As in many developing countries, Iranian cities are growing in popul MoreOne of the most ingenuous realties about cities is their perdurability. Expansion of city peripheries –desired or not desired – causes such areas to be annexed to the main body of the city. As in many developing countries, Iranian cities are growing in population and physically expanding at a high rate. For approximately the past five decades, after formulation of the first series of urban development plans, defining the urban growth boundary (UGB) has been an important policy tool of (central) government and urban management agencies. Provision of urban development plans in Iran is under the authority of the central government. Throughout this period, and despite clear evidence indicating the ineffectiveness of the UGB whose policy has been adhered to with no major modifications. Perhaps lack of effort in this area goes back to the absence of scientific studies in the field of level of success of the policies and available tools. It is such an extent that current trend of urban growth management is considered as an appropriate approach. This article, while paying attention to relevant theoretical topics, analyses urban growth management and boundary in Iran .Evaluation of the current growth management process is conducted through definition of special quantitative indices and sample monitoring using non-parametric analysis techniques in GIS.UGB definition error reveals the ignored part of the primary city at the time of provision of urban development plans, located outside the UGB. Thus, this index can represent the credibility of the proposals of urban development plans for the definition of the UGB. It is obvious that neglecting some parts of urbanized areas can cause future inefficiencies in urban growth management.UGB inefficiency index shows the proportion of the final, developed urban area that extends outside of the approved final urban growth zone, that is, outside of the approved UGB. This index reveals the efficiency of the UGB in incorporating urban growth and preventing urban sprawl. This is, then, a reliable basis for evaluation of the efficiency of urban growth management.As a result through a quantitative framework, this research demonstrates the weaknesses in the current procedure (inaccuracy and inefficiency of UGB). The evaluations reveal that the former and current definition of UGB in Iranian urban development plans have not been without error. This is partly because of incorrect assumptions with respect to urbanized areas in urban development plans. In some cases, because of intentional or unintentional mistakes in classifying a part of an urbanized area outside of the urban limits, the UGB does not even cover the real city edge in urban development plans. Another issue is the inefficiency of defined limits in restricting urban growth. Apart from the reality of to what extent the restrictive policies over urban growth are justifiable and necessary, it seems that some part of urbanization occurs outside of the approved urban limits. These two fundamental blunders cast doubt over the accuracy and credibility of the urban management mechanisms in Iran. Applicable results from the research include the necessity to revise the current policy tools. Manuscript profile -
Open Access Article
42 - Harvesting Daylight in High-rise Office Buildings Using Phyllotaxis Model
Amirhossein Zekri Rima Fayaz Mahmood Golabchi -
Open Access Article
43 - Energy Conservation in Building
Amira Mahmoud -
Open Access Article
44 - Determining returns to scales the left and right in a two-stage green supply chain using network data envelopment analysis
Rohollah Sharafeddin Amir Gholam Abri Mohammad FallahIn the present age, evaluating and then improving the performance of production systems and supply chains as a whole is the only possible way to compete in the global business market. Data Envelopment Analysis (DEA) is a non-parametric method for measuring the relative MoreIn the present age, evaluating and then improving the performance of production systems and supply chains as a whole is the only possible way to compete in the global business market. Data Envelopment Analysis (DEA) is a non-parametric method for measuring the relative efficiency of production systems and decision-making units with multiple homogeneous inputs and outputs as a mathematical programming method. Determining the type of return to scale (RTS) helps managers make more accurate predictions about the expansion or limitation of the decision-making unit (DMU). Due to the importance of RTS in relation to management decisions, various methods have been proposed by DEA researchers to introduce and determine its type. Research in RTS evaluation has led to a more general classification of RTS types, with the titles Left return to scale (L-RTS) and Right return to scale (R-RTS). This research studies the two-stage production process and introduces an approach to estimating the type of efficiency on the right and left scales of DMUs. In this paper, the application of the DEA network model to calculate the relative efficiency and return to scale of cement companies listed on the stock exchange has been studied. The data used in the model is related to the production process of 42 cement companies in 2020. Manuscript profile -
Open Access Article
45 - Efficient location by using data envelopment analysis
M. Mirbloky M. JolaeiSo far, many types of location models have been developed to find optimal spatial patterns according to different spatial metrics such as cost, coverage and availability. The initial focus of these models is on the location availability of service providers and demand e MoreSo far, many types of location models have been developed to find optimal spatial patterns according to different spatial metrics such as cost, coverage and availability. The initial focus of these models is on the location availability of service providers and demand estimates, and some of these models are within the framework of multi-objective programming models. After the advent of science of data envelopment analysis, some researchers have considered the efficiency of selected facilities as one of the target functions in locational issues and provide solutions. In this paper, we present a multi-objective programming model by integrating a joint weights estimation model and location model. The resulting model, unlike the former models, is characterized by a single run of efficiently selected centers from several potential centers. The proposed model is investigated by a numerical example, and the results show the contradiction between location and performance functions Manuscript profile -
Open Access Article
46 - Fixed Costs Allocation using Cross-Efficiency Evaluation and Game Theory
Mostafa Davtalab-olyaie Fatemeh Ghandi Farideh Davtalab-OlyaieIn many applications, there are some fixed costs for constructing the common platform of an organization which must be shared by all decision making units (DMUs). It is important how one should allocate such costs among all competing DMUs. Data envelopment analysis (DEA MoreIn many applications, there are some fixed costs for constructing the common platform of an organization which must be shared by all decision making units (DMUs). It is important how one should allocate such costs among all competing DMUs. Data envelopment analysis (DEA), which is a useful tool to evaluate the relative efficiency of DMUs, has been successfully used in allocating fixed costs among DMUs. Two main approaches have been proposed to allocate fixed costs that are based on maintaining or improving the relative efficiency of DMUs. In fixed costs allocation, one however needs to take into account both competitive and cooperative aspects among all DMUs. Therefore, it seems more reasonable to apply a peer-evaluation method in evaluating the efficiency of DMUs. To this end, we use cross-efficiency evaluation in DEA to allocate fixed costs between DMUs. Using cross-efficiency method and some concepts of game theory, we propose a new fixed costs allocation approach to share costs between DMUs such that the vector of cross-efficiency scores of DMUs after allocation is Pareto. We use a real application to more illustrate the proposed method and compare it with some of the existing methods. Manuscript profile -
Open Access Article
47 - Credit rating of the bank legal customers by using the improved modified Russell model (Case study: the legal customers of Arak Melli Bank)
M. izadikhah M. shamsiThe most exchange volume in a country will be obtained through bank system whose correct function will have a determinant role in improving economic activities. Nowadays, the customer’s rating and accreditation subject has been considered more than before by the b MoreThe most exchange volume in a country will be obtained through bank system whose correct function will have a determinant role in improving economic activities. Nowadays, the customer’s rating and accreditation subject has been considered more than before by the banks due to increase the volume of overdue claims and banks’ past over dues. One of the most important tools for controlling the banks’ credit risk is to implement the credit rating system and to recognize effective factors on withholding payment of the bank advances. The goal of this article is to investigate the relation between efficiency and risk in banking system. Based on this, with the help of data envelopment analysis method and the information related to evaluation, rating and interpretation of credit risk which has been suggested by three main rating institutes like “Fitch, Moody’s and Standard and Poor’s”, the credit risk of 24 legal customers of Arak Melli Bank was evaluated and the credit rate of each legal companies was determined and their quality analysis was expressed. Manuscript profile -
Open Access Article
48 - Estimation of cost efficiency for firms in different technologies using data envelopment analysis
Mohsen Hekmatnia Alireza Amirteimoori Sohrab Kordrostami Mohsen Vaez-GhasemiData envelopment analysis (DEA) is a method for evaluating the relative efficiency of a set of firms in a production process. Estimation of cost efficiency is one of the branches of performance evaluation. Cost efficiency evaluates the ability of producing current outpu MoreData envelopment analysis (DEA) is a method for evaluating the relative efficiency of a set of firms in a production process. Estimation of cost efficiency is one of the branches of performance evaluation. Cost efficiency evaluates the ability of producing current output with minimum available cost. Now let's assume that there are several groups of firms that operate separately and have different technologies, but are centrally managed, or in other words, their source of raw materials is shared, but each of these groups has different costs for these resources. Traditional DEA models do not offer any suggestions for calculating the cost efficiency in such situations where firms are grouped into different technological groups and the input's costs are different. In this paper, using the concepts of cost efficiency and meta-frontier and using the rational relation between cost efficiency and technical efficiency, a method is proposed to calculate the cost efficiency of firms in different technological conditions. There is also a way to use the transfer of units to improve their performance. The method presented in this study is used in a numerical example and a real case application and their results are explained. Manuscript profile -
Open Access Article
49 - Time-staged outputs in production process: A DEA-Based Approach
S. Seyedboveir M. Maghbouli F. MatroodThis paper examines the issue of handling outputs in DEA that occur at different stages in time. In some situations, the output set occur at the different period of time, meaning that the produced outputs at the first period of time impact on the production of outputs o MoreThis paper examines the issue of handling outputs in DEA that occur at different stages in time. In some situations, the output set occur at the different period of time, meaning that the produced outputs at the first period of time impact on the production of outputs of next time . This problem setting gives rise to the phenomenon of time-staged outputs. Specifically, the two outputs occur at different points in time, meaning that one of them plays a dual role. In other words, the dual-role measure is considered as either the output of the first stage and simultaneously as input for another time period. This paper demonstrates a modification of the joint technology in order to yield the maximum efficiency of the evaluated units. A real case on ten business schools has been illustrated . This real example is applied to emphasize that the suggested structure can handle this situation appropriately. Manuscript profile -
Open Access Article
50 - Introducing a new inefficiency source due to inappropriate price selection in a Non-Competitive Environment in Data Envelopment Analysis (a case study in the Imam Khomeini Oil Refinery Company of Shazand in Iran)
Elham Rezaei hezaveh Reza Fallahnejad Masoud Sanei Mohammad IzadikhahData Envelopment Analysis (DEA) is an appropriate tool for estimating various types of efficiency including Cost Efficiency (CE). Identifying and identifying inefficiency resources plays an important role in analyzing unit performance in order to plan for improving the MoreData Envelopment Analysis (DEA) is an appropriate tool for estimating various types of efficiency including Cost Efficiency (CE). Identifying and identifying inefficiency resources plays an important role in analyzing unit performance in order to plan for improving the status of Decision Making Units (DMUs). Now , if information on the inputs and outputs and pricing information of the evaluated units is available, we can calculate the lack of profit and revenue and cost optimization with respect to their inefficiencies. In this paper, we intend to determine the production possibility set (PPS) a new price and a new cost, based on which a new inefficient source and a new source selection of price vectors in a non competitive environment (that is , in the event of a possible change of loss due to the incorrect in Input prices And outputs from the Decision Making Unit to other Decision Making Units (DMUs)). Manuscript profile -
Open Access Article
51 - Providing a model for evaluate the efficiency of supply chain based on information flow using fuzzy network data envelopment analysis
tahmineh Noohi tehrani maryam shoar saber saati mohtadiRapid development toward globalization, a competitive market, significant technological advances, and high customer expectations have encouraged companies to reduce costs and increase their competitive advantage. One of the things that can help companies achieve a compe MoreRapid development toward globalization, a competitive market, significant technological advances, and high customer expectations have encouraged companies to reduce costs and increase their competitive advantage. One of the things that can help companies achieve a competitive advantage is supply chain management. Information acts as an intermediary between all activities and operations within the supply chain. The innovation of this research can be shown in two aspects of application and modeling. In terms of application, with a review of the literature and investigating the application of multi-stage and network data development analysis in the supply chain, it was revealed that so far, the efficiency of financial and physical flows in the literature has been evaluated more and the indicators are mostly related to two financial and physical flows in the supply chain, therefore there is more research opportunity to evaluate the efficiency of information flow within the supply chain. Measuring the efficiency of information flow should be an integral part of supply chain management. Therefore, this research aimed to present a model to evaluate the efficiency of information flow in the supply chain. In terms of mathematical modeling, research innovation is considering the model of the network and reversible relationship in the supply chain. With a review of the literature, the indicators are investigated to evaluate the efficiency of information flow in the supply chain, and the validity of indicators is examined by the fuzzy Delphi method. Then the decision making unit and inputs and outputs of the model are introduced. In this research, the fuzzy network data envelopment analysis is used. In order to implement the models, we used the GAMS software. Manuscript profile -
Open Access Article
52 - Determining the Russell Technical Efficiency of measure in the Presence of Flexible Factors based on slack variables
Majid Sedighi Hassan Kiyadeh Saber Saati Mohtadi Sohrab KordrostamiThe role of some factors is not completely clear as an input or an output in many real applications of Data Envelopment Analysis (DEA). In other words, some Decision Making Units (DMUs) can use a factor as an input while it may play an output role in other DMUs. This ty MoreThe role of some factors is not completely clear as an input or an output in many real applications of Data Envelopment Analysis (DEA). In other words, some Decision Making Units (DMUs) can use a factor as an input while it may play an output role in other DMUs. This type of factors is called flexible factors. In this paper, a model is proposed to develop models of flexible factors type in the DEA model. This model, at the same time, minimizes the inputs contraction factor and maximizes the outputs expansion factor in the Russell efficiency measure, in presence of flexible factors. The proposed measure in objective function is linear. In the other words, the relation between the factors is suggested as an additive function. In fact, the proposed model, in contrast the Russell measure is not nonlinear. By an illustrated example, the proposed model is compared with the existing models. Manuscript profile -
Open Access Article
53 - Determining approximate efficient solutions of multiobjective optimization problems using the combined constrained scalarization method
Mehrdad Ghaznavi Fereshteh Akbari Esmaile KhorramIn this paper, approximate efficient ( -efficient) solutions of multiobjective optimization problems are investigated. One of the most important methods for solving multiobjective optimization problems is to use scalarization techniques. In these methods, a single objec MoreIn this paper, approximate efficient ( -efficient) solutions of multiobjective optimization problems are investigated. One of the most important methods for solving multiobjective optimization problems is to use scalarization techniques. In these methods, a single objective optimization problem corresponding to the multiobjective problem is solved, and the relationship between optimal solutions of the single objective problem and (weakly, properly) efficient solutions of the multiobjective problem is investigated. In this paper, a combination of the modified constrained and elastic constrained scalarization methods is considered, which will provide necessary and sufficient conditions for generating approximate (weakly, properly) efficient solutions. We compare the results with the necessary and sufficient conditions obtained from the modified constrained and the elastic constrained methods. The presented results can be applied for every multiobjective optimization problem without any convexity assumption for the objective functions. ‎Unlike many of the previous methods, the obtained results are also consistent with multiobjective problems with unbounded criterion space. Manuscript profile -
Open Access Article
54 - An approach to find properly efficient solutions nearby ideal point in multi-objective optimization
Behnam Hozzar Ghasem Tohidi behrouz daneshianTrade-off between objective functions in multi-objective optimization is one of the tools for interpreting and studying efficient solutions. Properly efficient solutions are one of the most important theoretical and practical concepts that represent the behavior of the MoreTrade-off between objective functions in multi-objective optimization is one of the tools for interpreting and studying efficient solutions. Properly efficient solutions are one of the most important theoretical and practical concepts that represent the behavior of the objective functions during a process change. Actually, these solutions are those efficient solutions that filter the anomalies of objective functions at some points, and this will help the manager to decision making to choose more important solutions. One of the most important tools for obtaining solutions with bounded trade-off in multi-objective optimization field is the Sum weighted scalarization method, which many authors have been studying it in interactive optimization field. This paper provides a method for obtaining properly efficient solutions near the ideal point with a theoretical and interactive view and using Sum weighted scalarization method. Since being near to ideal point will be abele to a preference of decision maker; this method examines the preferences of the decision maker without sacrifice the theory. Therefore, this paper presents an approach to finding properly efficient solutions near to the ideal point. Manuscript profile -
Open Access Article
55 - Cost efficiency in three stage network DEA-R processes
parisa kamyab Mohammad Reza MozaffariIn many organizations and financial institutions, we don't always have acsses to inputs and outputs to evaluate the decision-making units (DMUs), but rather only a ratio of inputs to outputs ( or reverse) might be available. In DEA, cost efficiency determines input stan MoreIn many organizations and financial institutions, we don't always have acsses to inputs and outputs to evaluate the decision-making units (DMUs), but rather only a ratio of inputs to outputs ( or reverse) might be available. In DEA, cost efficiency determines input standards based on input costs. In multi-stage network DEA processes, in addition to input standards, cost efficiency would determine the standards for intermediate vectors as well as using linear programming models. In this paper, we calculated efficiency values for each stage, as well as overall efficiency based on a proxuction possibility set (PPS) in three stage network DEA-R processes. Then, we suggest three stage network DEA-R (ratio-based DEA midel) processes which are a combination of data envelopment analysis (DEA) and ratio data then we will propose cost efficiency models in each three stage network DEA-R process. Afterthan, we will determine the standards for outputs and intermediate measures in each stage using the subject of cost efficiency . In the end, overall efficiency and cost efficiency will be evaluated among of 30 Iranian educational research centers during the first half- year of 2015 based on a three stage network DEA-R process. Manuscript profile -
Open Access Article
56 - Measuring the cost efficiency in NDEA
Shahruz Fathi Ajirlu Alireza Amirteimoori Sohrab KordrostamiData Envelopment Analysis (DEA) is a relatively new data oriented approach for evaluating the performance of a set of peer entities called Decision-Making Units (DMUs) which convert multiple inputs into multiple outputs. In a relatively short period of time DEA has grow MoreData Envelopment Analysis (DEA) is a relatively new data oriented approach for evaluating the performance of a set of peer entities called Decision-Making Units (DMUs) which convert multiple inputs into multiple outputs. In a relatively short period of time DEA has grown into a powerful quantitative, analytical tool for measuring and evaluating performance. DEA has been successfully applied to a host of different types of entities engaged in a wide variety of activities in many contexts worldwide. The issue of measuring the cost efficiency in manufacturing and economic systems is one of the most important issues in the world. In the real world, there are manufacturing and economic systems that are composed of independent units. One of the ways to measure the cost efficiency for economic and production systems is the DEA technique. This paper presents two network DEA models to measure the cost efficiency of a network model with identical processing components taking into account the individual processing functions in the network structure. In this paper, we examine the cost efficieny model of Färe et al., and through modifying the model of Färe et al., a model has been developed to measure the cost efficiency in economic and manufacturing networks. Manuscript profile -
Open Access Article
57 - Evaluate the efficiency of decision making units with classical model and goal programming data envelopment analysis and output correlation with statistical methods in Ghavamin Bank.
golamreza Panahandeh khojin Abbass Toloie Eshlaghy Mohammad Ali Afshar KazemiObjective: The purpose of this study was to determine and evaluate the efficiency of decision making units with classical model and goal programming data envelopment analysis and output correlation with statistical methods in Ghavamin Bank.Methods: In this paper, data e MoreObjective: The purpose of this study was to determine and evaluate the efficiency of decision making units with classical model and goal programming data envelopment analysis and output correlation with statistical methods in Ghavamin Bank.Methods: In this paper, data envelopment analysis model based on output- oriented BCC was used to determine the efficiency of provincial branch management in the Ghavamin Bank. As well as to increase the discrimination power of decision-making units more efficient from the inefficient, first models of the default goal programming data envelopment analysis model was examined, then the output models of default as part of the input goal programming data envelopment analysis model was used. Finally, Pearson correlation coefficient was used to evaluate the correlation between the classical model and goal programming model in the outputs.Results: According to output amounts output- oriented BCC model all of decision-making units is efficient and value their efficiency is equal to one, then to discriminate higher than the goal programming data envelopment analysis model was used, the results showed that the 32 management 21 units are efficient and the rest are inefficient. The results also showed that there is a significant correlation between the classical model and the goal programming model.Conclusion: The results showed that goal programming data envelopment analysis model in discriminating efficient decision making units from inefficient has higher discrimination power than output- oriented BCC model. Manuscript profile -
Open Access Article
58 - Providing a model based on auxiliary variables for calculating the efficiency and effectiveness of metro stations in Tehran in the analysis of data coverage with inputs and outputs
Ali mohammad Gholiha Farhad Hosseinzadeh Lotfi Mohammadreza Shahriari Mohsen Vaez-GhasemiThe relative efficiency of a set of decision makers with multiple inputs and outputs is obtained by analyzing data coverage. One of the main assumptions of the classic models of data envelopment analysis is to consider each decision maker as a black box. Also, the indep MoreThe relative efficiency of a set of decision makers with multiple inputs and outputs is obtained by analyzing data coverage. One of the main assumptions of the classic models of data envelopment analysis is to consider each decision maker as a black box. Also, the independence of inputs and outputs is relative to each other. In this paper, the performance of subway stations in Tehran is determined by considering the two stage network structure in which the first stage indicates efficiency and the second stage demonstrates its effectiveness, and then, with regard to the presence of indicators, the input depends on In the first and second stages, the two stage models were modified and the resulting model was used for 71 metro stations in Tehran, and finally, 3 effective stations and 2 stations were effective. In total, of the 71 stations, no one of the metro stations have been operating efficiently. Manuscript profile -
Open Access Article
59 - Provide a mathematical model for selecting suppliers in the supply chain based on profit efficiency calculations
H. Saleh F. Hosseinzadeh Lotfi M. Rostmay-Malkhalifeh M. ShafieeOne of the most important issues in managers' decisions is supplier selection and supply chain evaluation. Therefore, several studies have been conducted on supplier selection and evaluation by data envelopment analysis. But studies so far have focused on selecting supp MoreOne of the most important issues in managers' decisions is supplier selection and supply chain evaluation. Therefore, several studies have been conducted on supplier selection and evaluation by data envelopment analysis. But studies so far have focused on selecting suppliers and evaluating them. And there is no way to determine the number of suppliers in a supply chain. Therefore, in this article, we first express the concept of profit efficiency for supply chains and using the proposed model in this paper, the number and type of suppliers in a supply chain are determined simultaneously. Finally, 10 "supply chains" in the food industry were examined and the profit efficiency of each of them was calculated using the proposed model in this article, and then the number and type of suppliers in each chain were determined. Manuscript profile -
Open Access Article
60 - Supplier Ranking Using Data Envelopment Analysis and New Cross Efficiency Evaluation in the Presence of Undesirable Outputs
Mehdi Soltanifar Hamid SHarafi Seyyed Mohammad Zargar Mehdi HomayounfarData envelopment analysis is a linear programming-based approach used to evaluate the relative performance of decision making units (DMU's) that perform the same tasks with multiple inputs and multiple outputs. Due to the optimistic view of the DEA in evaluating the per MoreData envelopment analysis is a linear programming-based approach used to evaluate the relative performance of decision making units (DMU's) that perform the same tasks with multiple inputs and multiple outputs. Due to the optimistic view of the DEA in evaluating the performance of homogeneous decision making units, multiple units with a maximum relative efficiency score (equal to unit) are highly likely. Therefore, ranking models were presented to distinguish between efficient units. Cross efficiency evaluation is one of the most useful tools for ranking DMUs in data envelopment analysis. This model has two major flaws in implementation. First, it yields different results in the presence of optimal alternatives; and second, there is no compelling reason to use the arithmetic mean to integrate the cross-performance matrix results. In this paper, a new approach, inspired by the preferential voting process and the idea proposed in the TOPSIS method, is presented to combine cross-performance results in the presence of undesirable outputs. The results are then used to rank suppliers in the presence of undesirable outputs. Manuscript profile -
Open Access Article
61 - A two-stage DEA approach to measure the performance of multi-activity bank branches
Ali Hadi Alireza Amirteimoori Sohrab Kordrostami Saeid MehrabianData envelopment analysis (DEA) is a nonparametric method for measuring the efficiency of decision-making units (DMUs) with multiple inputs and outputs. This research used the original DEA model and extended it to solve the DEA efficiency measurement problem, specifical MoreData envelopment analysis (DEA) is a nonparametric method for measuring the efficiency of decision-making units (DMUs) with multiple inputs and outputs. This research used the original DEA model and extended it to solve the DEA efficiency measurement problem, specifically for unseparated shared inputs. The consideration of this context aims to establish a new DEA approach to explore bank branch performance in different activities based on the optimal usage of unseparated shared inputs. In this study, in the first stage, the efficiency score is calculated from several activities using graph efficiency, and then, a maximum efficiency score pertaining to each DMU is applied to propose a new model. In the second stage, the efficiency score, which is calculated by the new approach on unseparated shared inputs, is defined as a new constraint based on shared inputs on the CCR model. This approach is implemented on the real data of 25 branches of a private bank in Iran. In fact, the efficiency of each branch is calculated, and enhancement guidelines are presented considering the three activities of production, electronic banking, and intermediation. Presenting one real efficiency score for each DMU, instead of the traditional efficiency score, leads to more robust decisions based on a more transparent performance evaluation in bank branches. Manuscript profile -
Open Access Article
62 - Designing a Dynamic two-stage data envelopment analysis model to calculate partial and periodic efficiency
Reza Soleymani-DamanehThe measurement of organizational efficiency has always been discussed by various researchers. Data envelopment analysis, taking the inputs and outputs of the decision-making units into account, makes it possible to calculate the relative efficiency for each unit. Many MoreThe measurement of organizational efficiency has always been discussed by various researchers. Data envelopment analysis, taking the inputs and outputs of the decision-making units into account, makes it possible to calculate the relative efficiency for each unit. Many organizations have a two-stage structure, and their performance in successive periods depends on each other. In evaluating such a structure, partial and periodic efficiency must be calculated. Early models and network and dynamic models are not able to calculate this performance alone. Models of existing dynamic networks are also unable to provide a projection for inefficient units or solve all challenges. In this study, by defining the PPS, an input-oriented dynamic two-stage DEA was developed. In this model, the optimal value of the intermediate and carryover variables is determined by the next stage and period, and the stages and periods become efficient backward from the last stage of the last period. In addition to the total structure, the model makes efficient all stages and periods and only becomes an efficient unit if it is efficient in all stages and periods. It was also proved that the projection of the unit to be evaluated is partial, periodic, and total efficient. How to use the model to calculate efficiency was expressed by a practical three periodical example. Manuscript profile -
Open Access Article
63 - Most Productive Scale Size with Environmental Factors in Data Envelopment Analysis
Hajar Haghighatpisheh Sohrab Kordrostami Alireza AmirteimooriNowadays, evaluating the efficiency of entities and knowing how resources should be organized is a significant aspect in order to achieve optimal results. One of methods for the performance evaluation is data envelopment analysis (DEA). Also, one of the important DEA to MoreNowadays, evaluating the efficiency of entities and knowing how resources should be organized is a significant aspect in order to achieve optimal results. One of methods for the performance evaluation is data envelopment analysis (DEA). Also, one of the important DEA topics is the most productive scale size (MPSS) estimation. Due to the presence of undesirable factors in the production systems, models are suggested in this paper for evaluating MPSS and determining the largest and smallest MPSS (nearest and farthest points of MPSS) while undesirable outputs with weak disposability are available. Models proposed determine the role of environmental factors in the performance estimation of units. These models can be used in factories, hospitals and as well as environmental protection for continual monitoring on the environmental situation affected by industrial activities and also showing the impact of environmental factors in measuring the efficiency. We use data from the Chinese industry to present the theoretical results. Manuscript profile -
Open Access Article
64 - Determining the efficiency, satisfaction and productivity of the public transportation system using data envelopment analysis and its applied study on Mashhad bus lines
Maliheh Shahkooeei Farzad Rezai Balf Mohsen Rabbani Mehdi Fallah JelodarThe trend of population growth and development of cities in recent decades has led to the use of vehicles, both private and public. Meanwhile, public transportation has attracted a lot of attention due to its economic viability. Therefore, urban planning officials and m MoreThe trend of population growth and development of cities in recent decades has led to the use of vehicles, both private and public. Meanwhile, public transportation has attracted a lot of attention due to its economic viability. Therefore, urban planning officials and municipalities try to solve problems such as; Environmental pollution, heavy traffic congestion, insecurity on some roads, severe accidents on some roads and excessive consumption of fuel suitable for vehicles (including oil - diesel and gasoline) are to consider appropriate measures. Data envelopment analysis with appropriate mathematical solutions can be an accurate and comprehensive tool to investigate such situations, so that managers can use it to make the best decision and remove existing barriers. Our goal in this article is to determine the efficiency, satisfaction and productivity (productivity in efficiency, productivity in satisfaction) of public vehicles, specifically 10 bus lines in Mashhad, so that their productivity in three consecutive years 91, 92 and 93 has been evaluated and the ratio of productivity in satisfaction to productivity in efficiency of each line has been calculated. Manuscript profile -
Open Access Article
65 - Autoregressive stochastic frontier model with nonlinear function of exogenous variable and dynamic technical inefficiency
Bahareh Feizi Ahmad PoyrdarvishIn this paper, we focus on a new autoregressive stochastic frontier model based on the nonlinear function of the exogenous variable in the panel data. In classical financial models, the technical inefficiency is considered uncorrelated, which is often not satisfied in e MoreIn this paper, we focus on a new autoregressive stochastic frontier model based on the nonlinear function of the exogenous variable in the panel data. In classical financial models, the technical inefficiency is considered uncorrelated, which is often not satisfied in empirical cases. In the proposed autoregressive stochastic frontier model, the error consists of two components, statistical error, and technical inefficiency, so that technical inefficiency is assumed to be autocorrelated. Autocorrelated technical inefficiency can be interpreted as the technical inefficiency of a company at the current time depends on the extent of the company's previous technical inefficiency and its current transient inefficiency. The semiparametric method for estimating the nonlinear function of the exogenous variable is calculated through a two-step process with Taylor series expansion and nonparametric adjustment factor. The expectation-maximization approach is used to estimate the parameters of the model and the estimation performance is evaluated by Monte Carlo simulation. Manuscript profile -
Open Access Article
66 - Reduction Difference Between the Profile weights in Stochastic cross-efficiency
Somayeh Rahmani Mohsen Khounsiavash Reza Kazemi Matin Zohreh MOGHADASCross-efficiency method is a useful tool for efficiency evaluation of decision-making units in data envelopment analysis. The issue of non-uniqueness of optimal weights in the cross-efficiency evaluation has reduced the usefulness of this powerful method. This paper int MoreCross-efficiency method is a useful tool for efficiency evaluation of decision-making units in data envelopment analysis. The issue of non-uniqueness of optimal weights in the cross-efficiency evaluation has reduced the usefulness of this powerful method. This paper introduces a new method for selection of weights profiles as the secondary goal in cross-efficiency with stochastic data. The issue of zero-weight which implies the exclusion of some variables from the assessments, is also addressed in the new proposed method. The provided weights selection method also reduces the weight disparity in the achieved weights profile. In the peer-restricted stochastic cross-efficiency evaluation, the new approach guarantees that different DMUs should not attach very different weights to the same variables. As the result, a common set of weights using the idea of similarity between sets of weights is achieved in the proposed computation method. Some numerical examples are also used for illustration and comparison purposes. Manuscript profile -
Open Access Article
67 - An enhanced Russell model to measure aggregate efficiency of multi-period production systems
Mohammad Najari Alamouti Mohsen Khounsiavash Reza Kazimi Matin Zohreh MoghaddasPerformance evaluation of the production systems by considering data related to different time periods is one of the most important issues of production theory. In this paper, a new method for measuring the aggregative efficiency of multi-period production systems using MorePerformance evaluation of the production systems by considering data related to different time periods is one of the most important issues of production theory. In this paper, a new method for measuring the aggregative efficiency of multi-period production systems using the data envelopment analysis (DEA) technique is proposed. The provided approach could be considered as extension of the radial methods in the literature. An extended Russell based model is presented for the first time to measure aggregative efficiency with respect to the time intervals of the production stages. One of the useful features of the proposed model is that the inefficiency of the existing aggregative approach is detected in one step without need to account for the second stage of optimizing slack variables. Some properties and advantages of the new model is discussed. Finally, to illustrate the applicability of the new approach, two practical examples are investigated and analyzed. The results show the good performance of the proposed method. Manuscript profile -
Open Access Article
68 - Resource Allocation in Data Envelopment Analysis on Fuzzy inputs and outputs
Esmat Noroozi Hamid SHarafiAbstract: Data envelopment analysis technique is used to evaluate the relative efficiency of a set of decision-making units that have been studied in different fields. One of the important issues in data envelopment analysis is sensitivity analysis. Many articles have b MoreAbstract: Data envelopment analysis technique is used to evaluate the relative efficiency of a set of decision-making units that have been studied in different fields. One of the important issues in data envelopment analysis is sensitivity analysis. Many articles have been presented in this field by researchers, sometimes managers are concentrating on issues that would be critical to allocate a fixed cost to decision-making units. Since in real problems the primary data are not precise but interval, ordinal, and qualitative therefore this study have been discussed this issue and present a model for assigning a fuzzy fixed cost to decision-making units. Moreover, the inputs and outputs of all units are assumed to be fuzzy and the allocation of new costs should be such that the highest number of inefficient units become efficient. At the end, this model has been utilized in two numerical examples and the results have been presented. Manuscript profile -
Open Access Article
69 - Measuring Inefficiency Slacks of Network Systems in the presence of Shared Resources
Hossein Azizi Shahruz Fathi AjirluPerformance evaluation is one of the important tasks of management in order to better understand the ‎past successes of a manufacturing unit and plan for its future development. The goal is to determine ‎whether the unit can be expected to increase its output wi MorePerformance evaluation is one of the important tasks of management in order to better understand the ‎past successes of a manufacturing unit and plan for its future development. The goal is to determine ‎whether the unit can be expected to increase its output with current input, or while maintaining the ‎current production output, how much savings in input can be made merely by increasing efficiency. A ‎system is usually composed of multiple parts, each with a specific function. When we are interested in ‎the performance of the system as a whole unit, where only inputs coming into the system and outputs ‎going out of the system are considered, it is called whole unit or black box analysis, because how ‎inputs are converted into outputs through intermediate products is not considered. The whole unit ‎analysis provides a general idea of the performance of a unit. However, since the system usually ‎consists of several interrelated parts, ignoring the functions of constituent parts may cause misleading ‎results. To properly evaluate the performance of a system, this article proposes a set of additive ‎models. The proposed models measure the inefficiency slacks of a system from both optimistic and ‎pessimistic views. Therefore, an overall performance evaluation for each system is obtained. An ‎example of the banking industry in Iran is offered to explain how to calculate the inefficiency slacks ‎of the system and processes.‎ Manuscript profile -
Open Access Article
70 - Computing the efficiency interval of decision making units (DMUs) having interval inputs and outputs with the presence of negative data
M. Rostamy-Malkhalifeh F. seyed EsmaeiliThe basic assumption in data envelopment analysis patterns (DEA) (such as the CCR andBCC models) is that the value of data related to the inputs and outputs is a precise andpositive number, but most of the time in real conditions of business, determining precisenumerica MoreThe basic assumption in data envelopment analysis patterns (DEA) (such as the CCR andBCC models) is that the value of data related to the inputs and outputs is a precise andpositive number, but most of the time in real conditions of business, determining precisenumerical value is not possible in for some inputs or outputs. For this purpose, differentmodels have been proposed in DEA for imprecise data over recent years and also severalresearches have been conducted on DEA that are able to evaluate efficiency with negativedata. The negative interval DEA pattern which has been introduced and used in the presentstudy, addresses uncertainty both in inputs and outputs and provides user with more stableand reliable results for decision making.Now, in this paper a model is presented that is able to compute efficiency interval of unitswith interval input and output that while some indicators can also be negative and then weprove that the efficiency interval that this model gives us is more precise compared toefficiency interval of models previously proposed and finally, ten decision making units(DMUs) with the negative imprecise (interval) data are investigated by the proposed modeland the results of the proposed model are compared with the results of the previous models. Manuscript profile -
Open Access Article
71 - Cost Efficiency of Closed–Loop Supply Chain in the Presence of Dual-Role and Undesirable Factors
M. Jahani Sayyad Noveiri S. Kordrostami A.R. AmirteimooriSupply chain management is essential for the success of firms and customer satisfaction. In addition, a suitable performance evaluation system is vital to the effective management of the supply chain. Due to the importance of cost management in the supply chain, an appr MoreSupply chain management is essential for the success of firms and customer satisfaction. In addition, a suitable performance evaluation system is vital to the effective management of the supply chain. Due to the importance of cost management in the supply chain, an approach based on Data Envelopment Analysis (DEA) is proposed in the current study for evaluating the cost efficiency of closed-loop supply chains while dual-role factors and undesirable outputs exist. DEA is a beneficial mathematical programming method for evaluating and analyzing the relative efficiency of decision maker units with multiple inputs and outputs. Indeed, in this study, the cost efficiency scores of supply chains with three components, supplier, manufacturer and repair and recycling, as well as forward and reverse flows are measured using DEA technique. The assumption of weak disposability on undesirable outputs is considered. Also, a case study is provided to illustrate and to analyze the proposed method. The results show a correct identification of the role of the factors and the incorporation of the undesirable and reversible factors in supply chain systems play the important role in the correct calculation of the cost efficiency in each of components and whole supply chain. Moreover, in the introduced method, the overall cost efficiency can be represented as the weighted sum of the cost efficiency of components. Manuscript profile -
Open Access Article
72 - Measuring robust overall profit efficiency with uncertainty in input and output price vectors
M.A. Raayatpanah N. AghayiaThe classic overall profit needs precise information of inputs, outputs, inputs and outputs price vectors. In real word, all data are not certain. Therefore, in this case, stochastic and fuzzy methods use for measuring overall profit efficiency. These methods require mo MoreThe classic overall profit needs precise information of inputs, outputs, inputs and outputs price vectors. In real word, all data are not certain. Therefore, in this case, stochastic and fuzzy methods use for measuring overall profit efficiency. These methods require more information about the data such as probability distribution function or data membership function, which in some cases may not have sufficient information to estimate them, and only we have knowledge about the parameters so that they change in a convex space that is closed and bounded. Therefore, in this paper, we consider a budget uncertainty model in the robust optimization problem that able to adjust the conservative degree. The robust model by the input and output price vectors is proposed to compute overall profit efficiency measure. To illustrate the application of the proposed method, a numerical example is presented and the results show that the robust overall efficiency of the decision making units is higher than the optimistic model. Manuscript profile -
Open Access Article
73 - Bank branches efficiency assessment using dynamic data envelopment analysis approach to SBM
M. ShafieeA new approach or model to the dynamic DEA, referred to as the adjusted dynamic DEA, is proposed in this study. Adjusted dynamic DEA optimizes the production activity of DMUs by introducing adjustment variables to modify the interconnecting activities between consecutiv MoreA new approach or model to the dynamic DEA, referred to as the adjusted dynamic DEA, is proposed in this study. Adjusted dynamic DEA optimizes the production activity of DMUs by introducing adjustment variables to modify the interconnecting activities between consecutive terms, solving conflicts that arise between terms and between management and shareholders. The non-oriented SBM model is used as a base model and is extended to the adjusted dynamic framework, where adjustment variables are introduced. In order to examine the applicability of the proposed method, the model is applied to evaluate the efficiency of ten branches of ten branches of an Iranian bank during three consecutive terms. The adjusted dynamic SBM model under variable return to scale (VRS) is solved and reference units for each inefficient DMU are identified. In addition, the slacks and adjustment variables are analyzed and further suggestions about the efficient conditions to the management are provided. Manuscript profile -
Open Access Article
74 - Ranking Efficient DMUs in Two-stage Network DEA with Common Weights method
M. Ahadzadeh namin E. KhamsehTwo stages DEA models are used in many fields of management and industry. One of the concepts that has attracted the attention of researchers in the theory of production is the concept of ranking the units with a two-stage network. A unit ranking can provide useful info MoreTwo stages DEA models are used in many fields of management and industry. One of the concepts that has attracted the attention of researchers in the theory of production is the concept of ranking the units with a two-stage network. A unit ranking can provide useful information to decision makers (DMUs) about optimal decision making activities. This concept defines the superiority of a unit in terms of efficiency and effectiveness on other units. The calculation of the efficiency of the units in the two-stage DEA network was performed, and the efficiency of the two-stage unit could be a suitable criterion for ranking one unit. But the main problem is the time when some efficient units all rank as one. So far, there is no linear model for solving this problem.The purpose of this research is to provide a model for ranking of effecient units using the common weight method in a two-stage DEA network. Manuscript profile -
Open Access Article
75 - Ranking of decision making units based on cross efficiency by undesirable outputs and uncertainity
N. AghayiCross efficiency is one of the useful methods for ranking of decision making units (DMUs) in data envelopment analysis (DEA). Since the optimal solutions of inputs and outputs weights are not unique so the selection of them are not simple and the ranks of DMUs can be ch MoreCross efficiency is one of the useful methods for ranking of decision making units (DMUs) in data envelopment analysis (DEA). Since the optimal solutions of inputs and outputs weights are not unique so the selection of them are not simple and the ranks of DMUs can be changed by the difference weights. Thus, in this paper, we introduce a method for ranking of DMUs which does not have a unique problem. In the real life, the outputs can be shown as desirable and undesirable outputs. So it is important to provide models for the ranking of DMUs in present of desirable and undesirable outputs. The classic DEA models deals with certain data. But, in the real word, all data are not necessarily certain. For solve of this problem, we present a new method that compute the ranks of all DMUs by uncertain data and calculate the lower and upper bounds for the ranks of DMUs. Finally, the results of a simple example are given. Manuscript profile -
Open Access Article
76 - A new non oriented models for calculating the efficiency of decision-making units in the presence of flexible variables
M. Sharifi GH. Tohidi B. Daneshian F. Modarres khiyabaniIn assessing the relative efficiency of decision-maker units by classical Data Envelopment Analysis (DEA) models, the status of the data is determined from the input or output points of views. In real issues, there are some data whose statuses are debatable. Some decisi MoreIn assessing the relative efficiency of decision-maker units by classical Data Envelopment Analysis (DEA) models, the status of the data is determined from the input or output points of views. In real issues, there are some data whose statuses are debatable. Some decision making units consider them as input to achieve higher efficiency while some other decision making units consider them as output, but these data are known as flexible variables. Thus, these data are known as flexible variables. Several parametric and non-parametric models have been introduced for categorizing such data. In most of the status-oriented models (input or output based) introduced to determine the status of flexible data, different statuses of a model can produce different results in determining the statuses of the flexible variable. In non-status models, the value of M is also used to select the main constraint and to remove the waste constraints. In these models, by choosing different values for M, different results are achieved in determining the status of the flexible variable, the efficiency and return to scale of decision-making units. To solve these problems in DEA, a non-status model is proposed which, in addition to determining the status of the flexible variable, can obviate the computational error, and the problems caused by the presence of M in the model. The advantages of the proposed model are compared with other models with an empirical example. Manuscript profile -
Open Access Article
77 - Utilizing Monte Carlo Method for Ranking Extreme Efficient Units in Data Envelopment Analysis
Gh-R .Jahanshahloo M. Zahedi-SereshtData envelopment analysis (DEA) is a mathematical programming method for calculatingefficiency of decision making units (DMU). In calculating the efficiency score of unitsthrough DEA we may come up with some efficient units. But the question is among theseefficient unit MoreData envelopment analysis (DEA) is a mathematical programming method for calculatingefficiency of decision making units (DMU). In calculating the efficiency score of unitsthrough DEA we may come up with some efficient units. But the question is among theseefficient units which of them is better. As we know, it is possible to rank inefficient unitsthrough efficiency score; however, for ranking efficient units it is not helpful and othermethods should be developed in these regards. To obviate this problem there have been somany attempts in the literature which have their pros and cons. Cross-efficiency method wasfirst introduced by Sexon et al. for ranking efficient units. The major problem of this methodis alternative optimal solutions in each model which must be solved for each DMU. Anotherproblem of this method is dependency of obtained solutions on the solution obtained by otherunits. Another method which has widely been used is super efficiency, presented byAnderson and Petersen. There are several flaws in their suggested method. Infeasibility,instability, dependency of the model on the input and output orientation and non-zero slackvariables are the weaknesses of this method which may occur in specific problems. Thisarticle is an attempt to present a method which does not have the aforementioned problemsand can be utilized to calculate the rank of extreme efficient units through using the Hit orMiss Monte Carlo method. At the end of the article some examples are made in order to showthe efficiency of the presented method. Manuscript profile -
Open Access Article
78 - Total and Partial efficiency indexes in data envelopment analysis
S. Kordrostami A.R AmirteimooriIntroduction: Data envelopment analysis (DEA) is a data-oriented method for measuring and benchmarking the relative efficiency of peer decision making units (DMUs) with multiple inputs and multiple outputs. DEA was initiated in 1978 when Charnes, Cooper and Rhodes (CCR) MoreIntroduction: Data envelopment analysis (DEA) is a data-oriented method for measuring and benchmarking the relative efficiency of peer decision making units (DMUs) with multiple inputs and multiple outputs. DEA was initiated in 1978 when Charnes, Cooper and Rhodes (CCR) demonstrated how to change a fractional linear measure of efficiency into a linear programming format. This non-parametric approach solves an LP formulation per DMU to obtain an aggregate efficiency score to each DMU. A new variety of efficiency as partial efficiency has been faced in this paper. Aim: The current paper studies the problem of partial efficiency in DEA. By using a DEA model, the paper determines a sharing matrix of inputs to optimize the aggregate efficiency of DMU under consideration. Material and methods: Toward this end, we have used the well-known non-parametric technique DEA. Results: In this paper, we introduced a DEA model to (i) maximize the aggregate efficiency score and (ii) to determine the partial efficiency of each output. Conclusion: Traditional DEA models give an overall efficiency score to each operational unit based on the observed inputs and outputs. In the current study, new efficiency indexes are introduced. These partial indexes are referred to as partial efficiency of outputs. The paper gives the best resource allocation to maximize the aggregate efficiency of DMUs. Manuscript profile -
Open Access Article
79 - The proposed cost and profit models in presence of flexible measures
F. Matroud Gh. TohidiIn conventional DEA, measures are classified as either input or output. However, in some real cases there are variables whose status is not known as input or output before assessment. These variable are known as flexible measures. One of the most important economic dim MoreIn conventional DEA, measures are classified as either input or output. However, in some real cases there are variables whose status is not known as input or output before assessment. These variable are known as flexible measures. One of the most important economic dimensions for ensuring the success of a company is the efficiency with which it uses its resources. Therefore, centering on Assessment costs and profit of financial institutions is an important issue. Aware of the importance of this subject, we propose the cost and profit efficiency model in presence of flexible measures due to the many application of these variables in real world. The proposed models determine the status of each flexible measure as an input or output statue and simultaneously maximize profit/minimize cost in profit/cost model. In order to evaluate the capability model the proposed model are applied to a real-life data set of 50 U.S. banks. Manuscript profile -
Open Access Article
80 - Two-stage network DEA-R based on value efficiency
M.R. MozaffariIt is essential for most organizations and financial institutes to be able to evaluate their decision-making units (DMUs), when there is only a ratio of inputs to outputs (or vice versa) available. In this paper, we will propose our two-stage DEA-R models, which are a c MoreIt is essential for most organizations and financial institutes to be able to evaluate their decision-making units (DMUs), when there is only a ratio of inputs to outputs (or vice versa) available. In this paper, we will propose our two-stage DEA-R models, which are a combination of data envelopment analysis and ratio data, based on value efficiency. Integrating value efficiency into data envelopment analysis would lead to identification of units with the highest productivity, from the manager’s perspective. Considering the managers’ opinions in DEA models in order to measure value efficiency would be an interactive method of DMU evaluation. generally, this study will suggest some two-stage DEA-R models, introducing the most productive units from the managers’ viewpoints. In the end, the obtained value efficiency will be our criterion for evaluation of DMUs in two-stage networks with ratio data. Manuscript profile -
Open Access Article
81 - Introducing a secondary goal for evaluating DMUs by cross efficiency in data envelopment analysis
R. Mehrjoo نقی .ShojaOne way to rank DMUs in DEA is the cross efficiency method. In this method, the efficiencyof each DMU is calculated by other DMUs optimum weights, which makes the ranking moreacceptable for managers. Existing alternative optimum weights in cross efficiency methodlead to MoreOne way to rank DMUs in DEA is the cross efficiency method. In this method, the efficiencyof each DMU is calculated by other DMUs optimum weights, which makes the ranking moreacceptable for managers. Existing alternative optimum weights in cross efficiency methodlead to several ranks for DMUs. Several secondary goals have introduced to avoid thisproblem, till now. In this paper, a new model is presented, that would be satisfying andacceptable for all DMUs. Therefore, by solving this model, the optimum weights areagreeable and fairy for DMUs. Manuscript profile -
Open Access Article
82 - اPerformance Assessment of South Fars Power Generation Management Company by using of Data Envelopment Analysis with Interval Data and Undesirable Outputs
J. Gerami A. R. GhanaatianDue to the power industry importance in the process of country economic development,studying the efficiency of power plant s is very important. By measuring the efficiency canbe perceived the strength and awareness of different sectors and can improve theirperformance b MoreDue to the power industry importance in the process of country economic development,studying the efficiency of power plant s is very important. By measuring the efficiency canbe perceived the strength and awareness of different sectors and can improve theirperformance by provide the appropriate solutions. In this paper, power plants was assumedas a decision-making unit that consume gas and gasoline fuel as input to generate electricityproduction and pollutant gases as desirable and undesirable outputs respectively. In thisresearch, we discussed to measure the technical efficiency of power plants in powergeneration Management Company of Jonoob-e-Fars since 2010 to 2014, by using the DEAwith interval data and undesirable outputs. We got results and finally, we determined theefficient and inefficient units by implementation of all the proposed models of DEA indifferent technologies. In the following, we determine rank of units by using of topsis andShannon’s entropy methods and discussed to determine the most economic rates of industryplants and provide the scientific proposal to improve the efficiency of the unit ineffectivedecision-making units. Manuscript profile -
Open Access Article
83 - Productivity changes of units: A directional measure of cost Malmquist index
G. Tohidi S. TohidniaThis study examines the productivity changes of decision making units in situation whereinput price vectors are varying between them and inputs are heterogeneous; that is a noncompetitivemarket. We present a directional measure of cost Malmquist productivity indexwhere MoreThis study examines the productivity changes of decision making units in situation whereinput price vectors are varying between them and inputs are heterogeneous; that is a noncompetitivemarket. We present a directional measure of cost Malmquist productivity indexwhere incorporates the decision maker's preference over productivity change over time. Asimple numerical example is designed to illustrate the new measure of the cost Malmquistindex. Manuscript profile -
Open Access Article
84 - The Calculation of the output price vectorby applying reverse linear programming: The novel approach in DEA
S. Sadri M. Rostamy-MalkhalifehIn the today’s world wherein every routine is based on economic factors, there is no doubt that theoretical sciences are driven by their capabilities and affordances in terms of economy. As a mathematical tool, data envelopment analysis (DEA) is provided to econom MoreIn the today’s world wherein every routine is based on economic factors, there is no doubt that theoretical sciences are driven by their capabilities and affordances in terms of economy. As a mathematical tool, data envelopment analysis (DEA) is provided to economics, so that one can investigate associated costs, prices and revenues of economic units. Data Envelopment Analysis (DEA) is a linear programming technique used for measuring the relative efficiency of decision making units based on input and output data. One of the applications of this technique is calculation of revenue efficiency. Methods of revenue efficiency calculation in DEA are generally presented for obtaining maximum revenue from output selling, these methods are not sufficiently efficient for evaluation of all system including network systems due to ignoring the internal structure of units and their middle products. Therefore, in this article, in addition to introduction of inverse linear programming in DEA and its application in calculating revenue efficiency, a new method is presented which considers the network structure of units, the ability to determine the optimal price and appropriate costs for efficiency of the unit. The proposed numerical examples demonstrated the superiority of the proposed methods over the traditional data envelopment analyses. Manuscript profile -
Open Access Article
85 - Stochastic DEA with Using of Skew-Normal Distribution in Error Structure
A. Nazari M-H .BehzadiThe stochastic data envelopment analysis (SDEA) was developed considering the value ofinputs and outputs as random variables. Therefore, statistical distributions play an importantrole in this regard. The skew-normal (SN) distribution is a family of probability densityf MoreThe stochastic data envelopment analysis (SDEA) was developed considering the value ofinputs and outputs as random variables. Therefore, statistical distributions play an importantrole in this regard. The skew-normal (SN) distribution is a family of probability densityfunctions that is frequently used in practical situations. In this paper, we assume that the inputand output variables are skew-normally distributed. With introducing asymmetric errorstructure for random variables of SN distribution, a stochastic BCC model is provided. Theproposed model includes BCC model assuming a normal distribution of data as well. Finally,the proposed model is used in a numerical example Manuscript profile -
Open Access Article
86 - Comparing the Efficiency of Dmus with Normal and Skew-Normal Distribution using Data Envelopment Analysis
A. Nazari M. H. BehzadiData envelopment analysis (DEA) is a nonparametric approach to evaluate theefficiency of decision making units (DMU) using mathematical programmingtechniques. Almost, all of the previous researches in stochastic DEA have been usedthe stochastic data when the inputs an MoreData envelopment analysis (DEA) is a nonparametric approach to evaluate theefficiency of decision making units (DMU) using mathematical programmingtechniques. Almost, all of the previous researches in stochastic DEA have been usedthe stochastic data when the inputs and outputs are normally distributed. But, thisassumption may not be true in practice. Therefore, using a normal distribution willbe lead to wrong results. The skew-normal (SN) distribution is one of the importantdistribution in statistics. The SN distribution is an asymmetric distribution which hassimilar properties to a normal distribution and it can be extended to the normaldistributions. In the present study, a stochastic BCC model was proposed formeasuring the stochastic efficiency of DMUs with inputs and outputs having Skew-Normal (SN) distribution. Moreover, it is shown that this model encompasses theBCC model assuming the normality of data as well. The proposed model inmeasuring the efficiency of a bank's 25 branches is used. Manuscript profile -
Open Access Article
87 - Using Neural Network to Determine Input Excesses, Output Shortfalls and Efficiency of Dmus in Russell Mode
D. Modhej M. Sanei N. ShojaData Envelopment Analysis (DEA) has two fundamental approaches for assessing theefficiency with different characteristics; radial and non-radial models. This paper isconcerned the non-radial model of Russell which is a non linear model. Conventional DEAfor a large datas MoreData Envelopment Analysis (DEA) has two fundamental approaches for assessing theefficiency with different characteristics; radial and non-radial models. This paper isconcerned the non-radial model of Russell which is a non linear model. Conventional DEAfor a large dataset with many inputs/outputs would require huge computer resources in termsof memory and CPU time. Artificial Neural Network (ANN) is one of the most populartechniques for non linear models and for measuring the relative efficiency of a large datasetwith many inputs/ outputs. Also in the last decade researches focused on efficiencyevaluation via DEA as well as using ANN. In this paper we will estimate the input excessesand the output shortfalls in addition to efficiency of Decision Making Units (DMUs) inRussell model through ANN. The proposed integrated approach is applied to an actualIranian bank set; the result indicates that it yields a satisfactory solution.works. Manuscript profile -
Open Access Article
88 - Increasing the discrimination power the decision making units based on reducing dispersion of weights in the data envelopment analysis
اعظم Pourhabib A.R Amirteimoori S. Kordrostami R. Kazemi MatinData envelopment analysis which is a nonparametric technique for evaluating relative efficiency of the decision making units with multiple inputs and outputs, has been a very popular method among researchers. While this nonparametric technique is popular, it has some dr MoreData envelopment analysis which is a nonparametric technique for evaluating relative efficiency of the decision making units with multiple inputs and outputs, has been a very popular method among researchers. While this nonparametric technique is popular, it has some drawbacks such as lack of discrimination in efficient units and weights dispersion .The present study, which is a model based on a multi-criteria data envelopment analysis has been proposed to moderate the homogeneity of weights dispersion by using goal programming. The proposed model minimized variances of input and output weights. The result shows that the dispersion of input and output weights has been balanced. Furthermore, the power of discrimination has been improved in DEA. Manuscript profile -
Open Access Article
89 - Robust efficiency in data envelopment analysis with VRS technology
Saeid Shahghobadi Farhad MoradiOne of the fundamental problems in the classic DEA is lack of ability to distinguish unit's performance scores that is considered as a disadvantage. Recently, Parkan et al. [9] tried to address this problem. They proposed to assess each unit both optimistic and pessimi MoreOne of the fundamental problems in the classic DEA is lack of ability to distinguish unit's performance scores that is considered as a disadvantage. Recently, Parkan et al. [9] tried to address this problem. They proposed to assess each unit both optimistic and pessimistic views are taken into account. In contrast to traditional evaluation, one index is considered for each unit based on the lowest measured performance that is called robust efficiency. In this way, a new technology was made on the assumption of constant returns to scale. In this paper, the production technology with variable returns to scale assumptions made and the corresponding models are formulated as linear programming. Finally, it is shown that, the models based on the robust efficiency has more discriminatory power of the classic DEA. Manuscript profile -
Open Access Article
90 - A Heuristic Method on Extended Two-Stage Network Structures
R. Ahmadzadeh S. Kordrostami A.r. AmirteimooriData Envelopment Analysis (DEA) as a non–parametric method is used to measure relative performance of organizational units. The aim of this paper is to develop a new model to evaluate the efficiency of a general two-stage network structures proposed by Li et al. ( MoreData Envelopment Analysis (DEA) as a non–parametric method is used to measure relative performance of organizational units. The aim of this paper is to develop a new model to evaluate the efficiency of a general two-stage network structures proposed by Li et al. (2012) for measuring the performance of Decision Making Units (DMUs). In addition, this paper expands the work of Li et al. (2012) and improves the heuristic search procedure to estimate the optimal solutions of non-linear centralized models. In order to evaluate the proposed model of this study, it has been applied to a case of regional Research and Development (R&D) system related to 30 provincial level regions in China. The experimental results compared with method developed by Li et al. (2012) show that the proposed method is efficient and has much lower computational complexity. Manuscript profile -
Open Access Article
91 - Centralized Cost Efficiency DEA Models
B. Rahmani ParchikolaeiCost efficiency measures the cost of resource by output production. While conventional cost efficiency models set targets separately for each DMU, There are cases where the Central decision making is seeking the above targets, and at the same tries to obtain the target MoreCost efficiency measures the cost of resource by output production. While conventional cost efficiency models set targets separately for each DMU, There are cases where the Central decision making is seeking the above targets, and at the same tries to obtain the target of Min cost efficiency for the total consumption. in this paper we consider that there is a centralized decision maker (DM). In such case, the DM has an interest in minimizing the cost efficiency of individual units at the same time it wants that total input consumption is reduced or output production is increase. We proposed new centralized resource cost efficiency model measurement on the base of Farrell cost efficiency model and Centralized resource allocation of Lozano and Villa model that will reduce resource allocation total cost efficiency, however it is possible for some inputs to increase. The preferences and advantages of this model are present some examples. Manuscript profile -
Open Access Article
92 - Performance analysis in production processes in the presence of fixed-sum outputs
A. R. Amirteimoori S. Masroori S. KordrostamiPerformance measurement in the presence of fixed-sum outputs in data envelopment analysis (DEA) is an interesting and most frequently studied subject in the field of operations research. Different definitions of relative efficiency in the presence of fixed-sum outputs h MorePerformance measurement in the presence of fixed-sum outputs in data envelopment analysis (DEA) is an interesting and most frequently studied subject in the field of operations research. Different definitions of relative efficiency in the presence of fixed-sum outputs have been proposed in the literature of data envelopment analysis and in all of the existing definitions a common equilibrium efficient frontier is given. We will show that determining a single equilibrium efficient frontier may leads to a large trade-off between the decision making units and this may be impossible in real cases. In this paper, we propose a context-based data envelopment analysis approach to evaluate the relative performance of the decision making units when fixed-sum outputs are exist in production process. The approach proposed in this paper uses the context based data envelopment analysis to determine an efficiency score to each DMU. To illustrate the real applicability of the proposed approach, a real case on 21 OCED countries is given. Manuscript profile -
Open Access Article
93 - Studying the Impact of Deferred Debts on Bank Performance by Using Data Envelopment Analysis
A. Gholam AbriPerformance evaluation has always been a challenging issue in management.The evaluation of performance especially during two past decades has attracted much attention because of its importance. Today, organizations try to measure the performance comparing with other com MorePerformance evaluation has always been a challenging issue in management.The evaluation of performance especially during two past decades has attracted much attention because of its importance. Today, organizations try to measure the performance comparing with other competitors to be able to reach to a level of performance keeping them in market.Banks and financial institutions are considered as the most important economic sectors performing the trades and commercial transactions by guiding and conducting the payments and getting the money to spread the markets and develop economic growth and prosperity. Due to the importance of the task, the increase of productivity is a matter of high necessity.Data envelopment analysis is a nonparametric linear programming technique for evaluating the performance of Decision Making Units (DMU) by multiple inputs and multiple outputs.In this paper, we focus on the deferred debts and impact of it’s on bank performance. So, data envelopment analysis and statistical test are to present relation between deferred debts and efficiency used. The present research is to evaluate the performance of 40 bank branches in Iran. In order to achieve the goal, the performance of bank branches will be assessed by using Data Envelopment Analysis and GAMS software during 2013-2014 and based on the researches conducted. Manuscript profile -
Open Access Article
94 - A Model for Project Selecting with Limited Resources in Data Envelopment Analysis with Input and Output Fuzzy
M. A. jahantighiIn Evaluating Performance, Selecting a Subset from a Set of Solutions with Limited Resources is Essential. If There Is More Than One Input and Output, the Data Rnvelopment Analysis Optimization Models Are Evaluated and Performance Measurement Based on the Weighted Outpu MoreIn Evaluating Performance, Selecting a Subset from a Set of Solutions with Limited Resources is Essential. If There Is More Than One Input and Output, the Data Rnvelopment Analysis Optimization Models Are Evaluated and Performance Measurement Based on the Weighted Output Is Divided Weighted Input. In This Research, Two Models of Optimization with Limited Resources Present from Data Envelopment Analysis Models. Each Project Produces a Set of Outputs Using Different Input Sources. In This Method, a Subset of Projects Is Selected that Can be Applies to the Resource Constraints as a Composite Project. These Composite Projects Are Defined and Evaluated by Available Projects and with Production Technology in Data Envelopment Analysis. In Fact, Evaluation and Selection Are Combined in the New Model, which is Done by Inserting a Data Envelopment Analysis Model into a Binary-Hybrid Linear Programming. The Second Model, Involves Choosing a Set of the Best or Most Preferred Places for New Facilities. Again, the Second Proposed Model Also Relates to Choices with Limited Resources. Manuscript profile -
Open Access Article
95 - Estimating Price Delays on Tehran Stock Exchange
Ali Ebrahim Nejad Mahdi Pedram RadIn an efficient market, prices should reflect all information available to investors. In reality, several frictions can prevent prices from incorporating the information immediately after disclosure. This can cause delays in the incorporation of information into prices MoreIn an efficient market, prices should reflect all information available to investors. In reality, several frictions can prevent prices from incorporating the information immediately after disclosure. This can cause delays in the incorporation of information into prices and increase the premium investors require for investing in stocks. Using an empirical measure of price delays, we examine the effect of these frictions and the resulting price delays on the cross-section of expected returns on Tehran Stock Exchange. The delay measure is defined as a function of contemporaneous and lagged systematic information that is impounded into prices. If frictions prevent information from impacting prices contemporaneously, lagged information should have explanatory power for stock returns. We find that stocks with higher price delays tend to have a premium that is not explained by known risk factors of market risk, size, value, momentum and liquidity. Our results are robust to a number of empirical specifications, namely the zero-investment portfolio returns and Fama-Macbeth regressions Manuscript profile -
Open Access Article
96 - Combined Application of State Space in ARIMA Form Model and Monte Carlo Simulation Method to Forecast TEPIX Index
Aghigh Farhadi Farhad GhaffariIn this study, we estimated the parameters using the State Space model described inARIMA form. We’ve also used the Monte Carlo Method for simulating the process in10000 reputations. Then the estimated parameters and the Monte Carlo simulationmethod are used to for MoreIn this study, we estimated the parameters using the State Space model described inARIMA form. We’ve also used the Monte Carlo Method for simulating the process in10000 reputations. Then the estimated parameters and the Monte Carlo simulationmethod are used to forecast TEPIX index, including 739 observations as an in-sampledata from 21th of January 2011 to 19th February 2014 and 59 observations from 20thFebruary 2014 to 21th May 2014 as an out of sample data . Furthermore, For moreinvestigation we’ve considered different horizons of forecasting, short-term (equal to 1week), mid-term (equal to 1 month) and long term (equal to 3 month). The results showedthat Tehran stock market data has enough efficiency to forecast them, and showed that theState Space in Form ARIMA model and the Monte Carlo simulation method can be usedas a predictive algorithm for TEPIX index and other indices with similar nature. Manuscript profile -
Open Access Article
97 - Survey Economies of Scale Efficiency Changes in government and Private Banks by Using Stochastic Frontier Production Function
Farid Sefati Taghi Torabi Kambiz hozhabr KianiToday One of the cases where in efficiency businesses including banks can be analyzed, discussed their size and scale of production, so as to check the size and scale 20 state and private banks were selected .The study period is 85-92 years. And data used are unbalanced MoreToday One of the cases where in efficiency businesses including banks can be analyzed, discussed their size and scale of production, so as to check the size and scale 20 state and private banks were selected .The study period is 85-92 years. And data used are unbalanced panel .Then translog stochastic frontier production function was estimated.and scale efficiency changes was calculated .The key point extraction tools combined index for electronic components and using it as an input in the production function is a composite index. The results show that big government (Melli,Sepah,Keshvarzi,Maskan) to a large extent the technologically optimal production scale(most productive scale) away.Because of their scale efficiency changes,large and negative.On the other hand the big private banks (pasargad,parsian,eghtesadenovi)have been quite in technologically optimal production scale,In fact, their scale efficiency change is the lowest amount. Small government banks (postbank,Toseeh Taavon,sanat va maadan) similar large goverment banks are far from most productive scale ,with the exception of the bank Toseah saderat of a good situation.small private banks (Sina,Sarmayeh,Saman,Day) as well as major private banks are the most productive technical scale Excluding Bank Day, which is partly attributed to most productive scale away Manuscript profile -
Open Access Article
98 - Dynamic Efficiency in Tehran Stock Exchange by Kalman Filter
Zahra Farshadfar Marcel ProkopczukEstimating informative efficiency in financial market is crucial for investors. They can gain unusual profit when the market is inefficient. As informative efficiency is evolving and undergoing changes in emerging markets such as Iran, classic methods for efficiency est MoreEstimating informative efficiency in financial market is crucial for investors. They can gain unusual profit when the market is inefficient. As informative efficiency is evolving and undergoing changes in emerging markets such as Iran, classic methods for efficiency estimation in these kind of financial markets are not suitable. Therefore, in such markets a hybrid method needs to be applied in such a way that the existing status of efficiency (static approach) and the efficiency during time (dynamic approach- in the absence of static efficiency) can be studied. The present study aims to determine the efficiency of Tehran Stock Exchange market by both static and dynamic approach. In order to obtain this goal, a combination of TVPGARCH and Kalman filter methods were applied on weekly total price index data during 2008 to 2017. Results indicate that the performance in Tehran Stock Exchange market in the static form does not have week efficiency. On the other hand, there is no evidence of efficiency dynamicity in Tehran Stock Exchange market performance during the studied period. Manuscript profile -
Open Access Article
99 - Testing the informational Efficiency and Rational Bubble in TSE and its Subsections Using Variance Ratio Test and Stationary Test of Price- Dividend Ratio
فریدون رهنمای رودپشتی مهدی معدنچی زاج شهرام بابالویانIn an efficient market, both the allocation of capital is done optimally and the stockprice of firms is determined fairly. The bubbles in price of stocks may occur ininefficient markets, because the lack of information transparency is the major reasonof bubble arising a MoreIn an efficient market, both the allocation of capital is done optimally and the stockprice of firms is determined fairly. The bubbles in price of stocks may occur ininefficient markets, because the lack of information transparency is the major reasonof bubble arising and the gap between intrinsic and market value.The purpose of this paper is investigating the informational efficiency and rationalbubble in stock prices of Tehran Stock Exchange (TSE) and its subsections (TEFIX30,TX-50 and the principle 44 companies offered in TSE) in 1389 by using variance ratiotest and stationary test of price-dividend ratios. The results indicate that:1- Total index of TSE an its subsections (TEFIX30, TX-50 and the principle 44companies offered in TSE) is not weak form efficient in 1389.2- The null no bubble hypothesis of TSE and its subsections is rejected in 1389.3- There is direct relationship between inefficiency and bubble in 1389. Manuscript profile -
Open Access Article
100 - The effect of financial stability and fluctuations in the value of the national currency on the efficiency of Islamic banking, under the switching regime change model
hadi radfar Mohammad Khazri fatemeh zandi bijan safaviIn this study, we seek to investigate the effect of financial stability and fluctuations in the value of the national currency on the efficiency of Islamic banking in recession and boom regimes. For this purpose, the effect of study variables during the period of 1373 t MoreIn this study, we seek to investigate the effect of financial stability and fluctuations in the value of the national currency on the efficiency of Islamic banking in recession and boom regimes. For this purpose, the effect of study variables during the period of 1373 to 1400 is investigated by using the rotation model and Markov switching regime change. The estimation results of the model show that the coefficient of financial development is positive in the prosperity regime. The coefficients of the variables of weakening the value of the national currency in both recession and boom regimes, liquidity and global financial and oil crises have also had a negative impact on the yield of bank contracts in the recession regime. The artificial pricing of the exchange rate in the years before the crisis and preventing its adjustment according to economic conditions is one of the main reasons for the recent fluctuations in the value of the national currency. Thus, as the growth of the exchange rate has increased, the policy makers have tried to control the growth of the exchange rate and prevent its increase by reacting more to it. Meanwhile, the reaction to exchange rate deviations has led to a further weakening of the value of the national currency. As the fluctuations in the value of the national currency increase, the amount of investment in the production sector has decreased and the production situation and the efficiency of the contracts have also worsened. Manuscript profile -
Open Access Article
101 - Investigating Iran's Performance in Improving Human Development Index
T. Torabi S. Tarighi M.R. Pakravan H. SoltaninejadThe Human Development Index (HDI) is a composite statistic of life expectancy, education, and per capita income indicators. Present study uses panel data for elaboration of Iran’s performance in improving human development index in MENA region. Our res MoreThe Human Development Index (HDI) is a composite statistic of life expectancy, education, and per capita income indicators. Present study uses panel data for elaboration of Iran’s performance in improving human development index in MENA region. Our results show that Iran’s success rate to improve its position is 88% and through more efficient allocation of resources the HDI index may improve from 0.702 to 0.837 Manuscript profile -
Open Access Article
102 - Do manager-specific characteristics affect the Efficiency of bank branches?
حمید Kordbacheh نادر Mehregan بتول TaghaviThis paper is to examine the effects of manager-specific characteristics on the efficiency of the commercial banks in Iranian banking system. To this aim, a one-stage stochastic frontier panel data model has been applied for a unique data set constructed based on the im MoreThis paper is to examine the effects of manager-specific characteristics on the efficiency of the commercial banks in Iranian banking system. To this aim, a one-stage stochastic frontier panel data model has been applied for a unique data set constructed based on the important characteristics related to the managers of the branches such as age, gender, education, experience, tenure in managerial position in the bank as well as managers mobility in a sampled branches of the EN Bank in Tehran over 1385 – 1387. The results show that the increase of managers’ age (till a specific period) as well as the duration of their activity in the bank can lead to greater efficiency of the branches. Moreover, managers’ education level and their academic education level as well as their movement within the branches have the indirect effects on the efficiency of the branches.JEL Classification: D22,D29,D62,C59 Manuscript profile -
Open Access Article
103 - The impact of individual and social factors in improving the performance of provincial health care
تیمور محمدی بهنوش سادات آقایانThis paper focuses on the efficiency measurement of health care system for Iran's provinces during the years 1383-86.The methodology is DEA (input and output oriented).Results indicate that there is so much room for increasing this efficiency. In order to determine fact MoreThis paper focuses on the efficiency measurement of health care system for Iran's provinces during the years 1383-86.The methodology is DEA (input and output oriented).Results indicate that there is so much room for increasing this efficiency. In order to determine factors affecting this low efficiency, by using panel data techniques, efficiency scores are regressed on variables which reflect both personal and social status of the provinces. Bad nutritional habits and individual health care expenditures are personal variables which have a negative effect on efficiency. On the other hand social variables such as per capita GDP and literacy rate move directly with efficiency. Per capita GDP has positive threshold effect. Noticeably, health care insurance expenditure as a social variable has a negative effect on efficiency which invokes attention of policy-makers in this area. As a result restructuring this industry, pave the way for higher efficiency Manuscript profile -
Open Access Article
104 - Investigating the Phenomenon of the Internet Addictive Usage Among Adolescents and Youth (15-25 years of age) in the City of Tehran
Said Moidfar Karam Habibpour Gatabi -
Open Access Article
105 - Investigating the Factors Affecting Efficiency and Development of Cultural Heritage, Handicrafts and Tourism Institution
Shohreh Kheradpisheh Rashid Zolfaghari Zaferani Samad Karimzadeh -
Open Access Article
106 - A hybrid Model on the Basis of Data Envelopment Analysis and Data Mining Techniques to Analyze the Investment Behavior in Stock Exchange: A Real Case Study in Tehran Stock Exchange
Saiedeh Molla Hosseinagha Kaveh Khalili-Damghani -
Open Access Article
107 - The Relationship between Returns to Scale and Size of Companies using Data Envelopmment Analysis in Iranian Insurance Companies
Elham Sadeghi Mohsen Rostami Malkhalife Mohammadreza Miri Lavasani Mohamadhamed Khanmohamadi -
Open Access Article
108 - The Effect of in-Service Training on Physician's Productivity in Health Centers: A Semi Experimental Study
Tahereh Moghadas Azadeh NouriIntroduction: one of the main causes of the efficiency and effectiveness of any organization, is Staff training. This study aimed to determine the effect of training on productivity in physicians in health centers of Isfahan University of Medical Sciences. Methods: The MoreIntroduction: one of the main causes of the efficiency and effectiveness of any organization, is Staff training. This study aimed to determine the effect of training on productivity in physicians in health centers of Isfahan University of Medical Sciences. Methods: The semi experimental design was conducted. The population was consisting of 86 staff who were selected randomly. The population of this study was physicians that working in Health centers of Isfahan University of Medical Sciences. Data was collected through "Productivity Questionnaire of Hersi & Goldsmith". This questionnaire was completed before and after the study by physicians. The intervention group received in-service training for 51 hours. Before and after the intervention physicians completed questionnaires of productivity. Data were analyzed using SPSS software version 16. Paired t-test was used to compare the data in both groups before and after the intervention. Results: The results showed that there is a positive and significant relationship between the mean score of physicians' productivity before and after of in-service training. (P<0.05). The subscales include motivation and performance evaluation also increased after intervention. (P<0.05). Conclusion: The in-service trainingin physicians can improved a number of components of productivity. Therefore, it is recommended to improve the factors affecting productivity by enriching the training. Manuscript profile -
Open Access Article
109 - The Effect of Health System Transformation Plan on The Efficiency of Selected Hospitals in Ahvaz
parastou amirifar aniseh nikravan Leila NazarimaneshIntroduction: There is no doubt that determining the efficiency of hospitals is one of the key steps that must be taken. Therefore, performance appraisal can help health plan executives to better understand its strengths and weaknesses. The purpose of this study is to e MoreIntroduction: There is no doubt that determining the efficiency of hospitals is one of the key steps that must be taken. Therefore, performance appraisal can help health plan executives to better understand its strengths and weaknesses. The purpose of this study is to evaluate the effect of health system transformation plan on the efficiency of selected hospitals in Ahvaz in the period 2012 to 2017. Methods: Data related to seven hospitals implementing the project and one control hospital in 2012, 2013, 2016 and 2017 were collected. The efficiency of hospitals was calculated using data envelopment analysis technique using CCR method and WinDeap2 v 2.1 software. Independent t-test and Poisson using Stata v 15.1 software were used for inferential analysis. Results: The highest efficiency of hospitals were related to 2017 with average 0.987 and the efficiency of two hospitals in 2016 and 2017 was 1 and the other two hospitals have experienced an upward trend during these two years. Efficiency, number of hospital admissions, number of outpatient admissions and number of surgeries before the transformation plan were significantly different from after, but this difference was not true for the number of active beds, number of physicians and number of nurses. Conclusion: Totally the efficiency of hospitals implementing transformation plan has been experienced an upward trend. considering the health system transformation plan in 2014, the improvement of the efficiency, the number of outpatient admissions, the number of hospital admissions and the number of surgeries was probably due to the transformation plan. Manuscript profile -
Open Access Article
110 - Assessment of Technical Efficiency of Comprehensive Health Services Centers of Hamadan by Data Envelopment Analysis (DEA) in 2019
mohamad yousefi nayer Ali Akbar Fazaeli Ydolah Hamidi Jalaleddin AmiriIntroduction:Urban health centers are one of the most important centers for providing primary health services. According to the wide range of health centers and the number of services provided by these centers, a significant portion of the community health system resour MoreIntroduction:Urban health centers are one of the most important centers for providing primary health services. According to the wide range of health centers and the number of services provided by these centers, a significant portion of the community health system resources are allocated to these centers; therefore, the determination and continuous monitoring of the effectiveness of these centers can play a significant role in improving the efficiency of health resources and preventing waste of resources. The purpose of this study Assessment of Technical Efficiency of Comprehensive Health Services Centers of Hamadan by Data Envelopment Analysis (DEA) in 2019. Methods: This descriptive-analytic study evaluates the effectiveness of Hamedan comprehensive health centers services using the data envelopment analysis method. Inputs include: number of physicians and number of employees (midwife, specialist in the fight against diseases.). Outputs include: number of examinations by physician, midwifery services, vaccinations, injections and dressings. Results: In 2018 the average technical efficiency of the comprehensive health services centers was 0.751, the mean management efficiency was 0.85 and the mean efficiency of the scale was 0.88. Of the total centers of comprehensive health services surveyed, 6 centers have technical capacity of 1 and 13 centers with a technical efficiency of less than 1. Conclusion: In centers with efficiency less than 1, there were initial and optimal values of the same and different inputs. Therefore, it is suggested that these centers reduce their inputs as much as possible so that they can achieve maximum efficiency. Manuscript profile -
Open Access Article
111 - Optimization of Hospital Layout through the Application of Heuristic Technique (Diamond Algorithm) in Shafa Hospital (2009)
Monika Motaghi Ali Hamzenejad Leila Riahi Masoud Soheili Kashani -
Open Access Article
112 - The Assessment of Operational Efficiency of Commercial Banks in India Using Cost to Income Ratio Approach
S. Hussain -
Open Access Article
113 - Efficiency Performance of Manufacturing Companies in Kenya: Evaluation and Policies
Miencha Haron J. A. Arul Chellakumar -
Open Access Article
114 - Total Factor Productivity of Manufacturing Sector in India: A Regional Analysis for the State of Haryana
Shallu Sehgal Suparn Sharma -
Open Access Article
115 - Supply Chain Analysis of Fresh Guava ( A Case Study )
H. Imtiyaz P. Soni -
Open Access Article
116 - The Effect of Applying Customer Knowledge on Innovation and New Product Efficiency (Case Study: Samasamaneh Software Company)
faranak khodayari بهزاد khIn this paper, we have studied the impact of utilizing the customer knowledge on the innovation and new products’ performance in Sama Samaneh Software Co. Theoretical foundations and similar researches’ literature was reviewed to design a research model. Thr MoreIn this paper, we have studied the impact of utilizing the customer knowledge on the innovation and new products’ performance in Sama Samaneh Software Co. Theoretical foundations and similar researches’ literature was reviewed to design a research model. Three types of customer engagement are identified (customer as the information source, customer as the innovative colleague, and customer as innovative) and their correlation with other variables are proposed as the main hypotheses. Ninety Sama Samaneh holding employees and managers were randomly chosen for the descriptive survey method. A questionnaire consisting of seven-level Likert scale closed questions was designed to measure the main variables. Validity and reliability of the questionnaire was measured as very good, and the data was analyzed using SPSS and PLS software. The results show that the proposed model can predict the performance of new products in 80% of the cases. They also show that the nature of customer’s knowledge impacts their type of engagement in developing new products, and the performance of new product development relies on customer’s engagement type. Manuscript profile -
Open Access Article
117 - Social Responsibility and Investment Efficiency: The Moderating Role of the Type of Business Strategy of the Company (Case Study: Companies Listed On the Tehran Stock Exchange)
dariush tahmasebi aghbelaghi maisam faraji amir cheraghiIntroduction: Today, one of the effective factors for sustainable economic growth and development is efficient investment that can create value for shareholders. The purpose of this research is to investigate the relationship between social responsibility and investment MoreIntroduction: Today, one of the effective factors for sustainable economic growth and development is efficient investment that can create value for shareholders. The purpose of this research is to investigate the relationship between social responsibility and investment efficiency. Methods: To test the research hypotheses, a multiple linear regression model based on panel data has been used. Results: The results of a survey of 140 companies listed on the Tehran Stock Exchange during the period 2013 to 2021 indicate that there is a negative and significant relationship between disclosure of corporate social responsibility information and investment efficiency, and in the years when disclosure of corporate social responsibility information is more The level of investment efficiency has been lower. Conclusion: The results showed that there is a positive and significant relationship between aggressive strategy and over-investment and in the years that the company has chosen an offensive strategy, there has been more investment in the company. There is also a positive and significant relationship between defensive strategy and low investment, and in the years that the company has chosen a defensive strategy, there has been less investment in the company. The results also showed that corporate social responsibility has a negative and significant effect on the relationship between aggressive strategy and over-investment and in years when the disclosure of corporate social responsibility information has been more, the impact of aggressive strategy on over-investment is weak. In addition, corporate social responsibility has a positive and significant effect on the relationship between defensive strategy and over-investment, and in years when the disclosure of corporate social responsibility information has been more, the effect of defensive strategy on over-investment is strengthened. Manuscript profile -
Open Access Article
118 - Profit and Risk Management Is Necessary To Increase the Efficiency of Melli Bank of Iran Branches
Ali taheri mehdi Zahedgharavi hamid asayeshThe decision-making process in today's world has many developments, which are greatly affected by uncertainty. As far as chaos theory has depicted organizations with great complexity and at the same time manageable. Financial engineering and integrated risk management h MoreThe decision-making process in today's world has many developments, which are greatly affected by uncertainty. As far as chaos theory has depicted organizations with great complexity and at the same time manageable. Financial engineering and integrated risk management has assumed the task of controlling risks and by providing new and strategic solutions, it has been able to create systematic methods for organizations and commercial companies, especially banks. Hierarchical analysis with field method is used in this study, so questionnaire is used in data collection. For this purpose, 31,425 people have university education from among the number of frontline and headquarters personnel of National Bank, of which 24,256 people have more than 10 years of experience. To determine the numerical value of the importance of each of the criteria, the expert judgment group of 386 people was deliberately selected from people with more than 10 years of experience and with a university degree based on Morgan's table. In this research, the authority of banking experts is used in all approaches. Based on the opinion of experts, by analyzing with the fuzzy Delphi method and hierarchical analysis, we come to the conclusion that the ratio of claims to facilities and liquidity to assets respectively show the inefficiency of branches. And profitability is accompanied by the reduction of banking risks. Manuscript profile -
Open Access Article
119 - Verification Effects of RFID Technology on Efficiency SCM With Emphasis on the FoodIndustry
B. Kheiri S. ZolfaghariThis paper reviews the effects of RFID Technology on supply chain efficiency . The results show that RFID Technology improves efficiency by detemining accurate placement of goods in each warehouse, improving productivity, decreasing costs, minimizing the MoreThis paper reviews the effects of RFID Technology on supply chain efficiency . The results show that RFID Technology improves efficiency by detemining accurate placement of goods in each warehouse, improving productivity, decreasing costs, minimizing the ordering process, among other ways. To achieve the most efficiency in supply chain, foodmanufacturing companies must use RFID Technology for sales, warehouse, production, supply of management, distribution. Manuscript profile -
Open Access Article
120 - To Survey the Relationship between Financial Reporting Quality & Investment Efficiency in Tehran Stock Exchange
Mohammad Khodaei Valahzaghard Monireh YahyaeiIn this study the Relationship between Financial Reporting Quality and InvestmentEfficiency in the 210 affiliated companies in Tehran Stock Exchange, between theyears 2005 to 2009 has been examined. It is assumed that increasing the Quality ofFinancial Reporting can imp MoreIn this study the Relationship between Financial Reporting Quality and InvestmentEfficiency in the 210 affiliated companies in Tehran Stock Exchange, between theyears 2005 to 2009 has been examined. It is assumed that increasing the Quality ofFinancial Reporting can improve Investment Efficiency. But, there has been littleempirical evidence to supporting this claim to date. In order to compare this claim anegative Relationship between Quality of Financial Reporting and Lack of Efficiencyof Investment is found. Under investment and Overinvestment both are examples ofthe inefficiency of investment. The results show that a negative andsignificant relationship exists between the Quality of Financial Reporting and theUnderinvestment. Also the Relationship between the Quality of Financial Reportingand Overinvestment is negative, but not significant Manuscript profile -
Open Access Article
121 - Explaining the relationship between the audit quality and the company's operational efficiency by considering the criterion of the auditor's tenure in the industry and the size of the auditor
farzaneh pourtaheraghdam hashem nikoomaram fereydoon rahnamaThe present study explains the relationship between the audit quality and the company's operational efficiency, taking into account the criterion of the auditor's tenure in the industry and the size of the auditor for 108 companies active in the stock exchange during th MoreThe present study explains the relationship between the audit quality and the company's operational efficiency, taking into account the criterion of the auditor's tenure in the industry and the size of the auditor for 108 companies active in the stock exchange during the period from 2011 to 2020 and using the static panel model. According to the estimation results of the model; Subsections of audit quality features include; The size of the auditor and the continuity of the auditor's tenure are significant on the operational efficiency of listed companies, in other words, if the size of the auditor increases by one unit, the operational efficiency of the companies increases by 10 units, and if the continuity of the auditor's tenure as an indicator of the audit quality of a unit increases, the operational efficiency increases. Companies increase by 4 units. According to the results of this research, it can be predicted that the continuity of tenure of auditors and audit institutions with larger size (such as audit organization) compared to other institutions, increases the reliability of accrual items of commercial units. Therefore, it can be recommended to the general assemblies of the companies to use larger audit institutions for the audit of their company. Information that is an inseparable part of the decision-making process, the more transparent and accessible it is, it can lead to more correct decisions in the field of optimal allocation of resources. Manuscript profile -
Open Access Article
122 - The Relationship between Corporate Philanthropy and Investment Efficiency with an emphasis on the Institutional Investors Ownership
Vahid Taghizdeh Khanqah Younes Badavar Nahandi Aliasghar Mottaghi Houshang TaghizadehAccording to the theory of value creation, the company goal is to increase the shareholder's wealth and pay attention to the individual interests. One of the elements that creates value is the consideration of philanthropic actions. So that doing these actions will give MoreAccording to the theory of value creation, the company goal is to increase the shareholder's wealth and pay attention to the individual interests. One of the elements that creates value is the consideration of philanthropic actions. So that doing these actions will give the company a good image and may affect the performance and investment. Therefore, the purpose of this study is to investigate the relationship between corporate philanthropy and investment efficiency with an emphasis on the ownership of institutional investors at companies listed in Tehran Stock Exchange. Thus, 90 companies were selected for the period of 2010-2017. In order to measure the corporate philanthropy, donations and to measure of investment efficiency, the proposed model based on Iran investment environment was used. A multivariate regression model was used to analyze the data and test hypotheses. The results showed that there is a positive and significant relationship between corporate philanthropy and investment efficiency. That is, humanitarian activities will reduce information asymmetry and increase investment efficiency. Also due to the role of institutional investors, the relationship between company philanthropy and investment efficiency in an environment with institutional investors was investigated. The results showed that institutional investors have a positive impact on corporate philanthropy and investment efficiency. Indeed, in a high regulatory environment, humanitarian action leads to optimal investment. Manuscript profile -
Open Access Article
123 - Assessment of Efficiency, Ranking and Productivity in the Insurance Organization (Tamin-e-Ejtemae) with Data Envelopment Analysis and Malmquist Approach
Farzaneh Heidarpoor Fahime DehghaniContinuous growthing in the service part is an important subject in the developed economic and competition world. Thus assessment of efficiency and productivity and recognizing the activity of parts are an important aim for an organization to reach the MoreContinuous growthing in the service part is an important subject in the developed economic and competition world. Thus assessment of efficiency and productivity and recognizing the activity of parts are an important aim for an organization to reach the targets point. So , this study illustrates the efficiency, productivity and ranking of the insurance s parts of tamin-e-ejtemae with two approach: Data Envelopment Analysis(DEA) & Malmquist and comparing these two methods. The main targets are recognizing inefficiency parts , peers for them, input slacks and determining how is the return to scale(CRS or VRS). For exact assessment of efficiency and ranking , all of the insurances parts in Tehran (31 DMU) has been considered during 1385-1386. The reasons under VRS show that the average of scale efficiency, X- efficiency and technical efficiency are 0.786, 0.921, 0.731 , so scale inefficiency X- inefficiency and technical inefficiency are 0.214, 0.79, 0.269. Under the Malmquist approach although scale efficiency, X- efficiency and technical efficiency decreased , the technological efficiency had better result than another . Totally productivity has the positive process and 4% has growthed . So the first hypothesis confirmed that the reasons of the efficiency, ranking and productivity in the insurances parts are similar with DEA and Malmquist approach. The second hypothesis did not confirm that the level of the efficiency has equivalent with the ranking of insurances parts. In this study, targets show that parts of insurance can increase efficiency with decrease inputs, so the third hypothesis has confirmed Manuscript profile -
Open Access Article
124 - Evaluate the Performance of the Steel Industry by Combining Disaggregated Activity Based on Costing and Aggregated Information with Networking Data Envelopment Analysis
Tahereh Rezazadeh Tekieh Mohammad Hossein Ranjbar morteza shafiee faegh ahmadiSteel industry is one of the most important industries in the country and its growth indicates the development of part of the economy, and given the volume of production and high costs of its activities, it is necessary to design appropriate strategies to increase perfo MoreSteel industry is one of the most important industries in the country and its growth indicates the development of part of the economy, and given the volume of production and high costs of its activities, it is necessary to design appropriate strategies to increase performance and reduce costs. Accordingly, the present study aims to provide a performance appraisal model in the steel industry by combining cost-based models based on activity and Networking Data Envelopment Analysis. For this purpose, financial and non-financial information of a number of subsidiary units of Hormozgan Steel Company were examined. They were used as input indicators of the NDEA model to evaluate performance. The results showed that activity-based costing (ABC) is more accurate than traditional costing and the outputs of this model can be used as inputs to the network data envelopment analysis model to evaluate the performance of units. The use of these two models also provides appropriate information for planning to reduce costs and increase efficiency. Manuscript profile -
Open Access Article
125 - Investigating the impact of quality management standards on profitability indicators of Tehran Stock Exchange
razieh hashemian Hamidreza Vakili fard Mohsen HamidianThe aim of this research is experimentally test the role of compliance with international business standards in improving business processes and company performance, based on the theory of quality management. Does the higher competitiveness and efficiency of the company MoreThe aim of this research is experimentally test the role of compliance with international business standards in improving business processes and company performance, based on the theory of quality management. Does the higher competitiveness and efficiency of the company have an effect or not? The statistical population of the current research is the Tehran Stock Exchange. Through screening, 167 companies selected as the research sample (1670 years-companies). The test of the hypotheses of the research has been done using the multiple linear regression method using the least squares method. The results of the experimental test of the research show that. The independent variable of compliance with international business standards has a direct and significant effect on the market value, the company's competitiveness and the company's efficiency. According to this research, it can be concluded that the financial behavior of companies active in the Iranian stock market is influenced by compliance with international business standards in the field of quality management, and the above standards (environmental standards, quality of services and products, human resources, energy, social activities, customer satisfaction) in Iran have the necessary effectiveness and efficiency and lead to the improvement of financial performance, value creation and efficiency of companies. Manuscript profile -
Open Access Article
126 - The impact of Value Added Tax (VAT) on Investment efficiency of Companies Listed in Tehran Stock Exchange
Farzaneh Hajihassani Taha Parkhondeh Donya JeddiThe purpose of this study is to test the effectiveness of VAT on the investment efficiency in listed companies in Tehran Stock Exchange. In this regard, 140 companies (980 observation year-companies) accepted in the Tehran Stock Exchange during the period from 2011 to 2 MoreThe purpose of this study is to test the effectiveness of VAT on the investment efficiency in listed companies in Tehran Stock Exchange. In this regard, 140 companies (980 observation year-companies) accepted in the Tehran Stock Exchange during the period from 2011 to 2017 have been investigated. In order to test the hypotheses of the research, a multiple linear regression model was used using combined data (integrated method). The results of this research indicate a negative and significant effect of the value added tax on the investment level of the company. Also, the research results showed that value added tax has a positive and significant effect on investment efficiency. In addition, the results of the research showed that the value added tax has a negative and significant effect on overinvestment and underinvestment and increases the investment efficiency. These results point to the importance and effectiveness of value added tax in acquiring an unconnected and efficient investment for the company. Manuscript profile -
Open Access Article
127 - The Association between Management Earnings Forecast Errors and Corporate Governance Structure in Tehran Bourse
سید علیرضا موسوی حمید زارعی سمیرا هنربخشIn this study, we examine the relation between management earnings forecasterrors with corporate governance structure of listed companies in Tehran Bourse. Weshould mention that corporate governance structure which are studied here are: Thepercent ownership of board mem MoreIn this study, we examine the relation between management earnings forecasterrors with corporate governance structure of listed companies in Tehran Bourse. Weshould mention that corporate governance structure which are studied here are: Thepercent ownership of board members, the number of board members, the number ofnon-executive board members and Growth opportunity.The numbers of statistic community are 363companies in Tehran Bourse whichdue to the limitation of this study we select just 146 companies from these statisticcommunities during 1383-1387. For preparation the literature and the history of thissurvey we use the information from Financial Statement, Tadbir pardaz soft ware,Bourse library and Tehran Bourse archives.For testing hypothesis we use Pearson coefficient of correlation and multi variableRegression model. The result shows that there are positive relations between thepercent ownership of board members, the number of board members and the numberof non-executive board members with accuracy of management earnings forecast,while there is a negative relation between Growth opportunities with accuracy ofmanagement earnings forecast. Testing hypotheses show that all of the surveyhypotheses are confirmed Manuscript profile -
Open Access Article
128 - A survey of the effect of the existence of the audit committee on the attraction of investors for investors for investment in accepted corporations in Tehran stock exchange market.
Ghodrat-Allah Talebnia HAMIDREZA VAKILI FARD Mansoore ShahsavariChanges incurred in the developed countries, in recent years have madeindependence of auditors in relation to management while ouditng . One of thesechanges is to use audit committee as a monitoring factor on financial reportingprocess.In many countries of the world, au MoreChanges incurred in the developed countries, in recent years have madeindependence of auditors in relation to management while ouditng . One of thesechanges is to use audit committee as a monitoring factor on financial reportingprocess.In many countries of the world, audit committies are widely being used in thefirms. However; In our country, not only audit committees arenot used, also noresearch has been canducted to see if they are necessary.The purpose of this research is to identify the effects of audit committees oninvestors investment in security exchanges.Four hypotheses have been made based on abave-mentioued questions. Theinformation needed to test hypotheses has come from reliable scientific texts andarticles as well as 6 generally questions to gether with 26 technical questions in theform of a questionnaire. The resulted information from the questionnaire was tested,analyzed and interpreted in the parts:In the first part through deseriptive statistics , the general information of thequestionnaire was tested. In the second part through inferential statistics , a t-test anda chi-squre were used to test the hypotheses of the study. The results show that thehypotheses were confirmeal in 95% level of significance. So, there is relationshipbetween the existence of audit committee and attracting investors trust, the number oftransactions, the volume transactions and the efficiency of companies securityexchanges in Tehran. As a result, investore are recommended to trustin and invest inthese companies Manuscript profile -
Open Access Article
129 - Investigating the Relation between Managerial efficiency and Tax aggressiveness reporting on financial reporting readability in Iran capital market: Experimental testing of signaling theory and ambiguous management hypothesis
ali molaiy eil zoleh kaveh parandinThe main purpose of this study was to investigate the effect of managers' performance and audible tax reporting on the readability of financial reporting. 1276 views. To measure the efficiency of managers, the Demarjian model has used, to measure the bold tax reporting, MoreThe main purpose of this study was to investigate the effect of managers' performance and audible tax reporting on the readability of financial reporting. 1276 views. To measure the efficiency of managers, the Demarjian model has used, to measure the bold tax reporting, the difference between declared and diagnostic taxes, and to measure the readability of financial reporting, two indicators of flash and text length have used. In order to analyze the data and test the hypotheses, multivariate regression with combined data model and estimated least squares (EGLS) method used using Ives software version 10. The results show that the efficiency of managers has a positive and significant relationship with the readability of financial reporting, but bold tax reporting has a negative and significant relationship with the readability of financial reporting. Managers' performance also has a significant effect on the relationship between bold tax reporting and financial reporting readability. In addition to these results, the sensitivity analysis test showed that the use of an alternative criterion for measuring the readability of financial reporting has no effect on the main results of the research and the research results are robust. Manuscript profile -
Open Access Article
130 - Investigation of the efficiency and effectiveness of graphic shapes as an alternative communication format in providing accounting information
Mohammadreza Mehrabanpour Seyed Abbas Borhani Fatemeh Geramirad Fatemeh Karbalaei HasaniLittle attention has been yet paid by Iranian researchers in accounting to improving the communicative ability of financial statements. This research aims to know the reaction of users of financial statements by analyzing their speed and accuracy (efficiency and effecti MoreLittle attention has been yet paid by Iranian researchers in accounting to improving the communicative ability of financial statements. This research aims to know the reaction of users of financial statements by analyzing their speed and accuracy (efficiency and effectiveness) in interpreting the accounting information about company’s profitability, liquidity, and leverage using schematic faces format presentation compared to conventional formats such as financial ratios. According to the findings of the first hypothesis, the average time required for the analysis of financial statements using schematic figures, was about 29% of analysis time using financial ratios. The results of the second hypothesis suggests that subjects using schematic forms in 96% of cases and using financial ratios in 83% of cases have been achieved in decision-making. As a result, users of financial statements on average spend a shorter time (performance) and greater accuracy (effectiveness) in the interpretation of accounting information on profitability, liquidity and leverage, by using schematic figures compared to traditional forms of analysis information such as financial ratios and also have Zmijewski's bankruptcy model. Manuscript profile -
Open Access Article
131 - Presented a dynamic Model to simulate the Balanced Score Card with the goal of efficient Strategies (Case study: Mahan air)
دکتر عباس طلوعی اشلقی الناز بیگلریKaplan and Norton Introduced BSC instrument on organization field. Presumptionfor accessing the organization operation implied that not only limited to the traditionalfinancial criterion but also completed with the customer satisfaction factors, internalprocess and grow MoreKaplan and Norton Introduced BSC instrument on organization field. Presumptionfor accessing the organization operation implied that not only limited to the traditionalfinancial criterion but also completed with the customer satisfaction factors, internalprocess and growing abilities.BSC is a comprehensive tool for the operational assessment. Dynamic system isalso a tool for reviewing and analyzing the behavior of a system with case and effectrelationship. In order to understanding the digit index influenced factors , dynamicmodel is an efficient tool. Simulation based on BSC ability by the what if test candetermine the appropriate strategies and goals. This article described the executiveways with the BSC and dynamic system in order to the efficiency and dominant theweakness in Mahan air line. Manuscript profile -
Open Access Article
132 - Developing the corporate social responsibility Model and its impact on the Qualitative Characteristics of Financial Information
S. Ahmad Mousavi Farzin Rezaei Farhad ShahveisiThe purpose of research is to identify factors that explain the pattern of reporting and corporate social responsibility and corporate social responsibility influence on the Quality of information. to achieve this goal, Using various aspects of social responsibility the MoreThe purpose of research is to identify factors that explain the pattern of reporting and corporate social responsibility and corporate social responsibility influence on the Quality of information. to achieve this goal, Using various aspects of social responsibility theory based on Carroll, Indicators for economic, legal, ethical, environmental and social was considered and Using confirmatory factor analysis, appropriate indicators were selected each dimension. The sample consisted of 87 companies during the period 1385 to 1393 based on data envelopment analysis, the performance was calculated corporate social responsibility. The performance index of corporate social responsibility to check the effects on the quality of accounting information based on panel data and multivariate linear regression and logistic, the results showed that the index of fulfillment of corporate social responsibility and predictive value of a positive and significant Relationship exists. Also results showed that the index of fulfillment of corporate social responsibility with Feedback value was positive Relationship, but this Relationship was not Significant and the coefficient of performance of corporate social responsibility and other qualitative characteristics include the conservatism, Neutrality, Rep faith fullness and completeness was not significant relationship Manuscript profile -
Open Access Article
133 - Measuring efficiency score by cross-efficiency method in data envelopment analysis and its relation to profitability and risk in banks admitted to Tehran stock exchange
Donya Shikh-hasani Malihe Alifarri Balal KarimiThe main purpose of this study is to measure the efficiency score by the cross-efficiency method in Data Envelopment Analysis (DEA) and its relation to profitability and risk in banks listed in the Tehran stock exchange for the period 2011-2017. The statistical populati MoreThe main purpose of this study is to measure the efficiency score by the cross-efficiency method in Data Envelopment Analysis (DEA) and its relation to profitability and risk in banks listed in the Tehran stock exchange for the period 2011-2017. The statistical population of the study consists of 19 banks listed in Tehran stock exchange. The proposed method is developed in two steps as follows. First, we evaluate the efficiency measures of banks using the cross-efficiency method in DEA. Then, we address the relationship between obtained efficiency scores with risk and profitability of banks through inferential statistics. In order to analyze the data, first, we apply pre-tests of variance homogeneity, F-Layer test, Hausman test, and Jarque and Bera test and then we use multivariate regression test to confirm or reject the research hypotheses.The following three conclusions emerge from the obtained results. First, we have a significant relationship between the credit risk and the efficiency measure of the banks listed in Tehran stock exchange. Second, there is a significant relationship between liquidity risk and the performance of the banks listed in the Tehran stock exchange. Finally, we show that between the profitability and the efficiency score of the banks listed in the Tehran Stock Exchange is also a significant relationship. Manuscript profile -
Open Access Article
134 - Public Sector Management Accounting Pattern with Financial Productivity Approach, Study of Role of Rationality, Expense and Financial Efficiency
Karamollah DaneshfardThe purpose of research is to recognize the reason and method of pattern governing the financial decision making and planning in public sector. The type of research is descriptive and its execution method is field executed by using research strategy of quality and quant MoreThe purpose of research is to recognize the reason and method of pattern governing the financial decision making and planning in public sector. The type of research is descriptive and its execution method is field executed by using research strategy of quality and quantity mixture, and questionnaire was used for data collection. Since financial productivity is an important mean for determining type and content of financial programs, this paper offers and examines the pattern of forming financial planning in public sector based on the financial productivity, financial efficiency, expense efficiency and rationality in order to determine the dimensions of bases of financial planning process in public sector. This model was established based on three fields of management literature (literature of management accounting, literature of financial productivity and planning). The research findings showed that the financial productivity helps the formation of governmental programs in public sectors, and financial programs of public sectors have positive effect on social equality and public demand. The results obtained from statistical sample confirm the model Manuscript profile -
Open Access Article
135 - Designing a Productivity Measurement Model in Iranian Cultural Organizations (Case Study of Tehran Municipality Cultural and Artistic Organization)
Nazanin mohammadvand ali rashidpoor mojtaba shahnoushiReview:Introduction & Objective: Culture can affect economic efficiency by promoting common values within the group that determine the ways of economic processes of production by group members. One person was selected in the quantitative section and 12 people in t MoreReview:Introduction & Objective: Culture can affect economic efficiency by promoting common values within the group that determine the ways of economic processes of production by group members. One person was selected in the quantitative section and 12 people in the qualitative section.Research Method: This research with a mixed approach (qualitative-quantitative) seeks to design a productivity measurement model in Iranian cultural organizations that is compatible with the Cultural and Artistic Organization of Tehran Municipality. In terms of data collection method, 5 main components and 58 sub-components of the literature The content analysis method was extracted and through the implementation of the Delphi method with the presence of academic elites and experts of cultural organizations, a consensus was reached that finally 21 concepts were identified as the final dimensions of the model.Findings: The results show that the status of the main components of management style, personal characteristics, cultural and social factors, economic and environmental factors in the cultural and artistic organization of Tehran Municipality in terms of the sample had a good correlation.Conclusion: The results showed that increasing productivity has a direct relationship with 5 components that have a direct positive effect with the growth of output to input ratio with reducing costs and the component of environmental factors in terms of efficiency and effectiveness have the same effect on productivity of this organization. Had Manuscript profile -
Open Access Article
136 - Investigate the effect of occupational stability of managers on performance of organization from the perspective of employees
Ali Rabiee Zahra Nazarian Zahra BehbahaniIntroduction and Objective: In the two past decades the issue of instability directors has been as one of the to consider in Iran bureaucracy. In this paper, the relationship between job stability and performance management organizations has been studied in one of the p MoreIntroduction and Objective: In the two past decades the issue of instability directors has been as one of the to consider in Iran bureaucracy. In this paper, the relationship between job stability and performance management organizations has been studied in one of the province of state banks.Methodology: This was a descriptive study that included a sample size of 17 branches and 850 employees. Branches was selected relative to the population under study and Per unit employees responded to the questionnaires randomly.Results: Results show that the stability of Iranian directors have overall positive effects on work processes in administrative organizations .There is a significant relationship between management stability and employees performance, increased human relations manager with staff, manager mastery on different aspects of administrator duties, efficient use of existing facilities and recognition of ethical problems and employee behavior and attempts to solve the problems.Conclusion: According to the current policy of replacing managers in the studied organization, it seems that this is causing a decrease in performance. Manuscript profile -
Open Access Article
137 - Investigation of the Effect of Penicillin as a Green Corrosion Inhibitor for Mild Steel Using Electrochemical Techniques
M. Shahidi Gh. Golestani D. Ghazanfari -
Open Access Article
138 - Investigation of the Effect of Vanillin as a Green Corrosion Inhibitor for Stainless Steel Using Electrochemical Techniques
M. Shahidi E. Sasaei M. Ganjehkaviri M.R. Gholamhosseinzadeh -
Open Access Article
139 - Polarization, EIS and EN Studies to Evaluate the Inhibition Effect of Vanillin as Environment-friendly Inhibitor on Carbon Steel in Hydrochloric Acid Solution
Hossein Tajabadipour Mehdi Shahidi Nima Karachi -
Open Access Article
140 - Synthesis of Polypyrrole/CeO2 Nanocomposite and its Application for Improving the Corrosion Protection of Acrylic Waterborne Coating on Mild Steel
M. Rezaei Nasab M. Shahidi S.M.A. Hosseini -
Open Access Article
141 - The role of communication skills of managers in the work environment
somayeh sadat mahdavi Seyyed Vahids Aghili norooz hashemzehi aliakbar farhangiCommunication skills are the most vital skills at each level and every business firm. The purpose of this paper is to investigate the role of communication skills of managers in the work environment from the employee perspective.Theoretical discussions are based on theo MoreCommunication skills are the most vital skills at each level and every business firm. The purpose of this paper is to investigate the role of communication skills of managers in the work environment from the employee perspective.Theoretical discussions are based on theories of communication, sociology and management. The dimensions of communication skills are self-awareness, social support, empathy and listening. Effective dimensions in the work environment include flexibility, respect for justice, the beauty of the service space, respect for the views of the lender and the consideration of human capital. The statistical population is the managers of the enterprises that have licenses and the number of their employees is more than ten. To measure the communication skills of the manager, their employees are questioned. The sample numbers from 30 business firms filled out 150 of their employees. Quantitative research method, probabilistic sampling method, data gathering tool through questionnaire in year 97, and data analysis method have been used for structural analysis for data analysis. According to the results of the research, the dimensions of communication skills (self-discovery, social support, empathy, and listening) have an impact on the efficiency of the work environment, which is expected to be verified in a larger sample of the same community. Manuscript profile -
Open Access Article
142 - Designing a Productivity Measurement Model in Iranian Cultural Organizations (Case Study: Tehran Municipality Cultural and Artistic Organization)
Nazanin mohammadvand Ali Rashidpour mojtaba shahnoushiAbstractThe present study with a mixed exploratory approach (qualitative-quantitative) seeks to design a model for measuring productivity in Iranian cultural organizations that is adaptable in the cultural and artistic organization of Tehran Municipality. For this purpo MoreAbstractThe present study with a mixed exploratory approach (qualitative-quantitative) seeks to design a model for measuring productivity in Iranian cultural organizations that is adaptable in the cultural and artistic organization of Tehran Municipality. For this purpose, in this research, 5 main components and 58 sub-components were extracted from the literature and in 21 concepts categorized through the Delphi method and with the presence of academic elites and experts of cultural organizations, which finally 21 concepts as final dimensions. The model was identified that includes managerial ability, justice-oriented behavior, communication-managerial, managerial strategies, employee knowledge, job factors, welfare factors, organizational support, accountability, general working conditions, work effectiveness, social working conditions, IT environment development, Internal organizational relationships were physical environment, environmental improvement, human and financial capital, total productivity changes, performance appraisal. The results of this study showed that increasing productivity and growth of output to input ratio by reducing costs and increasing the efficiency and effectiveness of the cultural and artistic organization has a direct positive effect. It should be noted that the use of these results can increase productivity in Iranian cultural organizations and provide a basis for saving government and public sector resources, and in addition, increase the efficiency and effectiveness of cultural activities. Give.Keywords: Productivity, Efficiency, Effectiveness, Delphi method. Manuscript profile -
Open Access Article
143 - The Causes of Inefficiency and Development of Parties in Iran of the First Pahlavi Period (Case Study of the Revival Party from 1920 to 1941)
Somaye Emadi Rastegar Sina Forouzesh Gholam Hossein ZargarinejadAuthoritarian political power, with the formation of the Constitutional Revolution and the formation of the National Assembly and the establishment of a legitimate system, became a law-bound power; the party was one of the necessary tools needed in the new political str MoreAuthoritarian political power, with the formation of the Constitutional Revolution and the formation of the National Assembly and the establishment of a legitimate system, became a law-bound power; the party was one of the necessary tools needed in the new political structure. For some reason, however, this revolution failed to achieve its ideals. This led reformists, especially the intellectuals of the Revival Party, to think of establishing a powerful government so that they could put their reformist thoughts and ideals into practice in the political, social, economic, and cultural spheres. The main question with the present article is why did not the party, which with the help of Reza Shah had won the majority of seats in the fifth parliament of the National Assembly, be able to implement its plans and finally become an inefficient party? The research hypothesis is that the founders and members of the Revival Party seem to have been from the ruling groups and the aristocratic class of society, and therefore the party leaders were unable to break out of their original circle and communicate with the masses. The research method of the article is a historical (posteriori) and the method of collecting documentary and library information has been used as a comparative study to describe and analyze the data. The fundamental finding of the present study is that “the factors of inefficiency and discontinuity of the Revival Party have been depending on two internal and external categories.” Manuscript profile -
Open Access Article
144 - Architecture Follows Nature(Biotechnology A smart approach to energy conservation in building skins)
saba kheradmand hassan satari sarbangholiSince 1970, a major problem worldwide is energy shortage along with the high consumption of energy in buildings. Architects are attempting to find solutions for managing buildings energy consumption. One innovative approach is Biomimicry. A subcategory of biomimicry is MoreSince 1970, a major problem worldwide is energy shortage along with the high consumption of energy in buildings. Architects are attempting to find solutions for managing buildings energy consumption. One innovative approach is Biomimicry. A subcategory of biomimicry is building skin which forms the entire exterior of the building. It is the boundary through which the buildings interaction with the environment occurs. Proper management of the building skin can significantly reduce the building's energy demand. The main objective of this paper is to investigate the ability of reducing energy consumption by applying the biomimicry approach on buildings skin design. In order To achieve this aim, a research methodology has been designed to accomplish four objectives. First, it will carry out an in depth research on biomimicry, skin, and biomimicry in building skin through the study of existing literature. Second, international case studies will be presented and analyzed in terms of usage of biomimicry, in addition to, the impact it had on reducing the buildings energy consumption. Finally it will conclude with guidelines for building skin biomimicry design for more efficient energy consumption in buildings. Manuscript profile -
Open Access Article
145 - The role of islamic azad university on formation human capital (a survey on its units scattering in iran)
ناصر EghbaliIn this article the write explains human and social resources and their mutualinteractions . He believes that in the developing countries including Iran, human resourcesbecause of their prominent role in increasing awareness and productivity of the membersof society has MoreIn this article the write explains human and social resources and their mutualinteractions . He believes that in the developing countries including Iran, human resourcesbecause of their prominent role in increasing awareness and productivity of the membersof society has a leading role in the formation of social resources. Next the writer points atthe role of Islamic Azad. University in establishing higher educational system throughoutthe country and facilitating the access of all people the higher education to accelerate theformation of human resources. Therefore in the next step he points at the humandistribution of the students of this university by using the indicator of human resources.He furthermore mentions the student distribution of this university by using averageindicator and the co efficiency of branch changes and the center of each province. Hebelieves that the process of student distribution had an acceptable direction (growth)during 1380-1384. Manuscript profile -
Open Access Article
146 - Assessment of municipality function base on the urban good governance
علی شماعی علیاصغر آدینه وند مریم حاجیزادهIntroduction and purpose: City good management is one of the most important things in urban sustainable development. Due to the rapid growing urban population and to control resources and material and spiritual capital and municipality optimal performance, it is n MoreIntroduction and purpose: City good management is one of the most important things in urban sustainable development. Due to the rapid growing urban population and to control resources and material and spiritual capital and municipality optimal performance, it is necessary to engage all citizens and elites. Experience has shown that in centralized societies with mono-decision vision, bring a lot of trouble. Elite participation and citizens monitoring, increase management efficiency. Achieve urban good governance model and indicators for urban good governance in YASUJ is the main purpose of this research. Method: Methods of this paper are descriptive, analytical and field survey. Data collected by questionnaire. The hypothesis is that the three components include participation, accountability and efficiency in YASUJ not the appropriate level and there is a significant difference between the educated people and other citizens' opinions. The assumptions of this paper were tested with ANOVA and LSD methods. Finally the information displayed on the map with GIS software. Results: Based on the findings of paper the participation (with -0.0237 mean score) and efficiency (with -0.032 mean score) in YASUJ are lower level of average but responsibility indicator (with 0.0257 mean score) is in YASUJ is apex level of average. Conclusion: Base on the result of paper participation and efficiency are in YASUJ are lower level of average and responsibility indicator is apex level of average so the hypothesis number one and three approved but hypothesis number two it`s not Manuscript profile -
Open Access Article
147 - Measuring the Quality of Urban Underpass Performance to Reach Sustainability (Case Study: Valiasr underpass intersection, Tehran)
Jamileh Tavakolinia Hossein Raesi Parviz AghaeiIntroduction and purpose: Urbanization growth and the emergence of the metropolitan phenomenon caused several problems which include the transportation system and traffic. One solution to the above-mentioned problems proposed by urban researchers has been the constructi MoreIntroduction and purpose: Urbanization growth and the emergence of the metropolitan phenomenon caused several problems which include the transportation system and traffic. One solution to the above-mentioned problems proposed by urban researchers has been the construction of underpasses in cities. In the past few years, in Valiasr intersection areas in Tehran, similar problems of traffic congestion have been prevalent, making transportation and travelling difficult. Indeed, the construction of Valiasr underpasses wiped out some of the problems. The present study aimed to assess the effectiveness of this underpass and its relationship to sustainability. Method: The research adopted descriptive-analytical methodology with the aim of being practical and developmental. Data were collected in two ways: library research and field studies. Field data were based on a sample size of 200 questionnaires. The garnered data were entered into SPSS software. For the analysis, in addition to descriptive statistics, Pearson test and ANOVA were used Findings: The obtained results showed that the performance was above average and the underpass in intersection of Valiasr with 7 indicators of traffic. Furthermore, the relationship between performance and sustainability was shown to be meaningful and significant (P>. 05). This also shows the regression relationship between indicators of performance and sustainability in one way ANOVA table Conclusion: Valiasr Intersection underpass can be considered as a successful urban project though there are some defects, the most important of which is why fellow citizens pass underground while automobiles move over the ground. However, this project was an inevitable response to existing problems and has been successful so far. Finally, in order to increase the efficiency of the underpass, some suggestions such as constructing elevators for the disabled or special individuals have been made Manuscript profile -
Open Access Article
148 - The effect of cultural programs on happiness and increase productivity Municipality(Case study: city of Damghan)
Samaneh lalehiThe necessity of considering the issue of happiness and its causing factors in organizations arises from the fact that happiness, on the one hand, increases the positive emotions of the staff and on the other hand by reducing negative emotions, it will increase the prod MoreThe necessity of considering the issue of happiness and its causing factors in organizations arises from the fact that happiness, on the one hand, increases the positive emotions of the staff and on the other hand by reducing negative emotions, it will increase the productivity and efficiency. The overall objective the present study the effect of cultural and ideological programs of supreme leader’s representative office on joy and happiness of women employed in the Ministry of Agriculture that the tool used for data collection was a researcher made questionnaire. Statistical population of the research consisted of 513 female employees of ministry at headquarters levels that according to the Cochran formula 219 people and through questionnaires distributed, 195 questionnaires were collected. Random sampling method was selected. Research results show that To happiness through the exercise of cultural programs in the workplace, the more applicable to the employees of an organization to achieve organizational goals higher and earlier achieved success Manuscript profile -
Open Access Article
149 - Fuzzy Multi-Objective Model of Closed-Loop Supply Chain Network in the Automotive Industry with an Urban Management Approach
saeed aminpour alireza irajpour mahdi yazdaniIntroduction & Objective: The purpose of this study is to design a multi-objective model of fuzzy closed-loop supply chain network in the automotive industry with an urban management approach. Automobile manufacturing is a complex and energetic process that consumes MoreIntroduction & Objective: The purpose of this study is to design a multi-objective model of fuzzy closed-loop supply chain network in the automotive industry with an urban management approach. Automobile manufacturing is a complex and energetic process that consumes significant amounts of raw materials and water. To continue the competition, major automotive equipment manufacturers must strive for better product quality by continuously improving their production process and directing low-carbon emissions and increasing sustainability. In this regard, reverse supply chain networks and closed loop chains have special features that are very useful in the industry under study. Method: In the present study, in order to achieve the research objectives, a quantitative research method will be used and based on the purpose, it is defined in a practical way. In this study, we use the MOPSO method to facilitate its implementation and its ability to provide good convergence, as well as to maintain a proper balance between exploitation and exploration, as well as the NSGA II genetic algorithm. Results: In the study of the findings of the proposed algorithms, it found that the average error resulting from these algorithms is less than 0.04. The results also show that the proposed algorithms have the necessary efficiency in solving these problems. Conclusion: The notable results of our model are as follows: (1) an efficient closed-loop network that demonstrates the economic benefits of considering the value of time over the recycling of a worn product. (2) It has the ability to show the capacity to achieve maximum benefits in terms of cost value as well as the environmental perspective of what capacity it should maintain. Manuscript profile -
Open Access Article
150 - Effectiveness of urban management from managers of Tehran municipality
Ramin AfifiIntroduction and objective: urban management is one of a very important issues in the field of management that determine the many other organizational variables . on the eve of the third millennium knowledge management as a strategic need for institutions , organization MoreIntroduction and objective: urban management is one of a very important issues in the field of management that determine the many other organizational variables . on the eve of the third millennium knowledge management as a strategic need for institutions , organizations and service bodies . Knowledge management guaranteeing the long - term advantages for organizations and communities and the use of all human capital , intellectual and information . and with regard to the importance of the usability of the subject of important question , it is important that the organization and decision – makers and influential as Tehran Municipality applying category knowledge management and its components , including technology (IT), category leadership, categories organizational culture, human category , category mechanism and the process, the organizational structure to improve urban management is effective and to what extent this could lead to improve conditions in the management of the city mayor of a city Tehran Municipality , especially in the region ? objective of the study : study " the effectiveness of knowledge management and its components urban management of a municipality directors Tehran " Method: This study is based on classification based on purpose in order applied research and application , and in terms of data collection methods - descriptive and the kind of solidarity . Findings: in connection with small - scale of technology , leadership, organizational culture, human resources, a mechanism and process, the organizational structure , leadership , at the level of confidence 99 / 0 : municipality directors, according to a Tehran all components of knowledge management in urban management . equation model predictions urban management with regard to the management of knowledge and its components include: urban management technology = 8.594 0.567 + + 0.195 leadership organizational structure + 0.276 organizational culture + 2.836 mechanism and human resources + 0.562 process conclusion : in connection with the technology components , leadership, organizational culture, human resources, a mechanism and process, the organizational structure , at the level of confidence 99 / 0 : using these components with urban management . Manuscript profile -
Open Access Article
151 - A general Approach to find Non-Zero Multiplier Weights in DEA
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156 - Fuzzy Network DEA Model for Urban Wastewater Treatment Plants
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157 - The overall efficiency and projection point in network DEA
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159 - Estimating Most Productive Scale Size of the provinces of Iran in the Employment sector using Interval data in Imprecise Data Envelopment Analysis(IDEA)
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162 - Assessment of two-stage processes cross-efficiency in the presence of undesirable factors
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164 - Efficiency of engineering graduate programs in Brazil
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178 - Presenting an efficiency analysis model of posts in social networks of digital marketing (Case Study: Facebook)
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180 - The combination of data Envelopment analysis and Balance scorecard card to provide an evaluation and ranking model and its application in R&D projects.
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182 - Investigating the effect of weight restrictions on estimating returns to scale in convex technologies
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184 - Evaluating Efficiency by Multiplier Method in Two-Stage Unit with Undesirable Outputs
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185 - Determining the Technical Efficiency of Hospitals affiliated with Kashan University of Medical Sciences using Data Envelopment Analysis: 2011-2016
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191 - Input Estimation in Two-Stage Systems with Undesirable Outputs Based on Cost Efficiency
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194 - Machine learning clustering algorithms based on Data Envelopment Analysis in the presence of uncertainty
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196 - Identification of congestion in two-stage data envelopment analysis
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197 - Radius of stability in data envelopment analysis with network structure
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198 - Ranking all of efficient units using the proposed SBM model
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199 - Benchmarking Automotive and Parts Manufacturing Companies Based on Intellectual Capital Using Data Envelopment Analysis
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201 - A combined machine learning algorithms and Interval DEA method for measuring predicting the efficiency
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204 - DEA-TOPSIS with interval data
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206 - Performance evaluation of Iran universities with Stochastic Data Envelopment Analysis (SDEA)
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207 - Regional efficiency in the tourism industry based on global development indicators using data envelopment analysis
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208 - Basic ratio-based DEA models
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209 - A Novel Efficiency Ranking Approach Based on Goal Programming and Data Envelopment Analysis for the Evaluation of Iranian Banks
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210 - Investigating and Comparing Several Centralized Resource Reallocation Methods
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211 - Efficiency and Return to Scale of Two-Stage network in Data Envelopment Analysis Using Additive Model
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212 - Ranking Efficient DMUs Using the Ideal point and Norms
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213 - Allocation efficiency in network DEA
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214 - Minimizing the Weights dispersion in Cross-Efficiency Measurement in data envelopment analysis
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215 - Estimating right and left returns to scales in data envelopment analysis: A new approach
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216 - Predicting the Efficiency of Decision-Making Unit by Using Piecewise Polynomial Extrapolation in Different Times
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217 - Estimating Returns to Scale in the Presence of Undesirable Factors in Data Envelopment Analysis
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218 - Using Non-Archimedean DEA Models for Classification of DMUs: A New Algorithm
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219 - Computation of Output Losses due to Congestion in Data Envelopment Analysis
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220 - The Efficiency of MSBM Model with Imprecise Data (Interval)
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221 - Portfolio Performance Evaluation in a Modified Mean-Variance-Skewness Framework with Negative Data
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222 - Deriving Common Set of Weights in the Presence of the Undesirable Inputs: A DEA based Approach
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225 - Efficiency Evaluation and Ranking DMUs in the Presence of Interval Data with Stochastic Bounds
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226 - Revise Approach to Measuring Congestion Based on the Comparison of Inputs
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227 - Cross Efficiency Evaluation with Negative Data in Selecting the Best of Portfolio Using OWA Operator Weights
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228 - Technical Efficiency of Nigerian Insurance Companies: A Data Envelopment Analysis and Latent Growth Curve Modelling Approach
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229 - The relationship between Neural Networks and DEA-R (Case Study: Companies Stock Exchange)
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230 - Applying Network Data Envelopment Analysis to Determine a Criterion for Benchmarking in Regional Electricity Companies of Iran.
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231 - A Model for Prioritizing the Risks Associated with Road Construction Projects Based on Generalized Secondary Goal
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232 - Efficiency Analysis Based on Separating Hyperplanes for Improving Discrimination among DMUs
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233 - Efficiency of DMUs in Presence of New Inputs and Outputs in DEA
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234 - Efficiency Evaluation of Wood Supplying Plans
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235 - Finding Target by Using Value Efficiency (A Case Study of Human Resources Division in Parsian Gas Refinery Company)
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236 - An Alternative Secondary Goal Approach to Modify Cross Efficiency Evaluation in Data Envelopment Analysis
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237 - Sensitivity Analysis and Finding the Stability Region with Adding DMUs in DEA
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238 - Estimating Most Productive Scale Size with Double Frontiers in Data Envelopment Analysis using Negative Data
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239 - Satisfaction Function in Present Undesirable Factors
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240 - Data Envelopment Analysis with LINGO Modeling for Technical Educational Group of an Organization
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241 - Calculating Cost Efficiency with Integer Data in the Absence of Convexity
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243 - Cross-Efficiency Evaluation Based on an Interval Method
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244 - Secondary Model Developed for Weight Selective in Evaluating the Efficiency of Cross-DEA with Fuzzy Data
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245 - Using Directional Distance Functions to Determine Ranking Ranges in Cross-efficiency Evaluations
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246 - Choosing the Best Bundle of Projects: A DEA Approach
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247 - Efficiency of decision making units in network DEA using interval data
T Hassani M Rostamy-Malkhalifeh -
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248 - Data Envelopment Analysis Models In The Presence Of Ratio Data and Non-Discretionary Factors
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249 - The Overall Efficiency in the Presence of Imprecise Adaptable Measures
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250 - Robust data envelopment analysis with uncertain date: An analysis to measure hotel efficiency in Crete
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251 - Non-discretionary Factors in Data Envelopment Analysis: Review and Extension
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252 - Data Envelopment Analysis with Sensitive Analysis and Super-efficiency in Indian Banking Sector
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253 - Provide a Model for Reallocating Resources in the Structure of Pasargadae Bank Branches With Emphasis on Efficiency and Productivity
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254 - An Approach to Identify and Evaluate Congestion in Data Envelopment Analysis
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255 - Determination of Leaching Efficiency Coefficient for Desalinization of Saline and Sodic soil in Veis Area, Khoozestan Province
Zahra Behbahani Zadeh Rezaeyan Ebrahim Pazira Ebrahim Panahpour Narges ZohrabiIncreasing of population in the world caused overusing natural resources and land destruction. Salinization and sodification are two effects of land destruction especially in dry and semi-dry areas. Leaching of soil soluble salts in soil profile could be one of the most MoreIncreasing of population in the world caused overusing natural resources and land destruction. Salinization and sodification are two effects of land destruction especially in dry and semi-dry areas. Leaching of soil soluble salts in soil profile could be one of the most appropriate method to emend and reclaim saline and sodic soils. Determination of requisite water to reclaim this kind of soils and optimal management of water and soil resources are seems to be necessary. In this study, Examination of three different leaching methods including Continues pounding leaching, Intermittent pounding leaching and Spreyer leaching have been performed on saline and sodic soils in Veis area, Khoozestan. This examination performed on natural and intact soil culms with 1 meter height which are located in Polyethylene area with 15 cm diameter. The examined soil layers were 0-25, 25-50, 50-75 and 75-100 cm and the depth of leaching water were 25, 50, 75 and 100 cm. According to obtained results, and experimental method were found for estimation of each leaching method. Exponential model in Continues pounding method was defined as the best model based on better correlation coefficient and lower standard error. However, Intermittent pounding method showed lower utilized water for soil desalinization and better leaching efficiency coefficient corresponding with soil texture of the area. According to shortage of water and advantages of this method compare to two other methods, Continues pounding method will be appropriate for Veis Area. Manuscript profile -
Open Access Article
256 - The evaluation of effect of increase irrigation efficiency along with increased acreage on the return water and underground water storage using SWAT model
فرشته بتوخته Farhad Misaghi Hossein DehghanisanijThe continued increase in demand in arid and semi-arid countries, increasing the gap between supply and demand for water in the future. Therefore, in these areas, especially in the agricultural sector an urgent need for water resources management, demand management and MoreThe continued increase in demand in arid and semi-arid countries, increasing the gap between supply and demand for water in the future. Therefore, in these areas, especially in the agricultural sector an urgent need for water resources management, demand management and allocation is to avoid critical situations. The aim of this study was to evaluate the effects of increasing irrigation efficiency along with the development of cultivation on return water, and the reserves of underground water using SWAT model. SWAT model is a conceptual and half- distribution model at the basin scale that has high computational efficiency. After the simulation basin during the period 2005 to 2014 in base conditions and perform calibration and validation of model outputs, two scenarios of increased irrigation efficiency without increasing the area under cultivation and increasing irrigation efficiency along with increased cultivation was introduced to the models. Based on the results, by increase irrigation efficiency, the water used in agricultural production decreased from 330 million cubic meters per year to 186 million cubic meters per year in base conditions. Also the volume of return flow to the area decreased of 133 million cubic meters per year in base scenario to 0.22 and 1.96 million cubic meters per year in the scenario of increased irrigation efficiency without increasing the area under cultivation and increasing irrigation efficiency along with increased acreage respectively. The return of the amount of water feeding the aquifer from 29.6% in basic conditions with increasing irrigation efficiency reaches zero. Manuscript profile -
Open Access Article
257 - Water use efficiency and water productivity in potato genotypes under water stress conditions
Marjan Samaee Ali Mohammad Modares Sanavi Ahmad Mousapour Gorji Eskandar ZandIn order to identify sensitivity of different potato genotypes to water stress, a research was carried out as a factorial experiment in a randomized complete block design with three replications in Karaj in 2014 and 2015. Potato genotypes at eleven levels (Agria, Caesar MoreIn order to identify sensitivity of different potato genotypes to water stress, a research was carried out as a factorial experiment in a randomized complete block design with three replications in Karaj in 2014 and 2015. Potato genotypes at eleven levels (Agria, Caesar, Savalan, Sante, Marfona, Milva, Picasso, Hermes, Jelli, 397081-1, 397069-2) and irrigation treatments in two levels (stress and control) are conducted. Tape irrigation was done normally and in the early stages of tuber production, watering for stress plots was disconnected and control plots were irrigated in a normal way, after reaching to ninety percent of the soil moisture deficit, irrigation was done again until the soil moisture reached field capacity and irrigation was done normally up to the end of growing season. Combined analysis of data for two years showed a reduction of biological yield, healthy tuber fresh weight, marketable healthy tuber fresh weight, LAIM, dry weight of LAIM, evapotranspiration and water usage in genotypes under the stress compared to the control. WP based on fresh weight of healthy tubers and fresh weight of marketable healthy tubers reduced or showed a tendency to reduction in most of genotypes under the stress. WUE based on the healthy tuber yield and marketable healthy tuber yield decreased under the water stress compared to the control in all genotypes except for 397069-2. The most amount of WP based on fresh weight of the marketable healthy yield was observed in 397069-2, respectively (5.41) and (5) kg/m3 in two years under the stress. Based on results of this experiment, doing of additional researches in order to achieve suitable potato genotypes for planting in actual deficit water conditions of our country according to diversity of planting season, place, climate, quality of seed potato, experts and etc. are recommended. Manuscript profile -
Open Access Article
258 - Investigation of effective factors on water use efficiency of border irrigation at actual and extensible root zone depth of wheat in Hamidieh (Khuzestan)
Arash Tafteh محمدرضا امداد سعید غالبیThis study was conducted to investigate changing of border dimension and the root zone depth in Hamidieh Khuzestan on water application efficiency. Soil of site has heavy soil texture (Clay Loam) and investigation in three farms base of usual method of farmer and MoreThis study was conducted to investigate changing of border dimension and the root zone depth in Hamidieh Khuzestan on water application efficiency. Soil of site has heavy soil texture (Clay Loam) and investigation in three farms base of usual method of farmer and direct measurement to calibration of WIN-SRFR model in 2015 was applied. The effective depth of root development of wheat (Chamran verities) 100 days after planting date (Late February ,After flowering) about 40 cm and water application efficiency in border irrigation in farmer situation about 30% were determined. The simulation results by this model in condition of 40 cm root zone depth and 50 cm net depth of irrigation water show that with 18 lit/s discharge, 3-3.5 h cutoff time and border dimension with 180 m length and 10 m width, the possibility of increasing water application efficiency is up to 40% is provided. If root zone depth and net depth of irrigation water increase respectively 50cm and 70 mm (In condition of improving soil) can be water application efficiency increased to 50% in proposed condition that percent relative increase is about 33% more than farmer situation. So by applied convenient operation plowing and soil emendation and also correction of border dimension and irrigation management can be increase percent relative increase of water application efficiency up to 66 percent in comparison of farmer condition. Manuscript profile -
Open Access Article
259 - Effects of deficit irrigation on growth trend, quantity and quality characteristics of maize in Kermanshah
abdoreza ahmadpour Bahman Farhadi Bansouleh Mokhtar GhobadiThis study was conducted to investigate impacts of deficit irrigation on trend of crop growth, quantity and quality characteristics and water use efficiency of maize in Kermanshah. The field study was carried out at a randomized complete block design with four irrigatio MoreThis study was conducted to investigate impacts of deficit irrigation on trend of crop growth, quantity and quality characteristics and water use efficiency of maize in Kermanshah. The field study was carried out at a randomized complete block design with four irrigation treatments (40% deficit irrigation, 20% deficit irrigation, full irrigation (FAO Penman-Monteith method) and 20% over irrigation) and three replications with furrow irrigation method. Results indicated that impacts of deficit irrigation was significant on grain yield, biomass, weight of stems, weight of ears, weight of leaves, leaf area index, plant height, number of kernels per row, number of kernels per ear, grain protein and fat. The impacts of water stress on characteristics of maize were different in different stages of growth and were higher at the end of the growing season (grain filling stage). Maximum amount of water use efficiency in grain and fat was in T4 respectively 1.051 and 0.0549 Kg/ha and for biomass and protein was in T3 respectively 2.568 and 0.092 Kg/ha. So deficit irrigation is not recommended for maize in Kermanshah. Manuscript profile -
Open Access Article
260 - Study the effect of deficit irrigation on yield, quality characteristics and water use efficiency of three cultivars of soybean in Moghan plain
Abasalt Rostami Ajirloo محمدرضا اصغری پور احمد قنبری مهدی جودی محمود خرمی وفاWater deficit is the main factor that limit growth of plants, so achieving optimal performance under water deficitcondition requires the selection of a suitable variety is due to the circumstances of each region. According to this, anexperiment was conducted in a split MoreWater deficit is the main factor that limit growth of plants, so achieving optimal performance under water deficitcondition requires the selection of a suitable variety is due to the circumstances of each region. According to this, anexperiment was conducted in a split plot arrangement based on randomized complete block design with threereplications on soybean in Moghan plain at 2015 and 2016 years. Main-plots were Normal irrigation (IR1), 80percent of full irrigation (IR2), 70 percent of full irrigation (IR3) and 50 percent of full irrigation (IR4) respectively,Cultivars included Williams (Cul1), M9 (Cul2) and Zan (Cul3) as a sub-plot. The results of comparing the means ofdata demonstrated that deficit irrigation decreased yield, yield components, percentage of seed oil of all cultivars.Also, the highest its characteristics (yield 4000 kg/hectare, Number of pods per plant 127.33, Number of seeds perplant 240, 1000 seeds weigh 300 gr, biomass 8900 kg/hectare, percentage of seed protein 25.3, WUE (yield) 0.95and WUE (grain oil) 0.23 kg.m-3) observed in Williams cultivar under normal irrigation and the lowest values forthese traits were obtained in Zan cultivar at IR3 and IR4 treatments. Also, the lowest protein content obtained innormal irrigation in the Williams cultivar and the highest that observed in the M9 cultivar at treatment IR4,respectively. Therefore, in order to this results Williams was the best cultivar under normal irrigation and waterdeficit conditions about yield and M9 was the sensitive variety to the deficit irrigation in Moghan Plain. Manuscript profile -
Open Access Article
261 - Evaluation of classic semi-permanent sprinkler system and modeling evaporation losses and wind drift in ADF 25˚ nozzle sprinkler model in Moghan region
majid raoof یاسر حسینی fardin Nazari-GiglooOptimized management and utilization of any system requires knowing the working conditions of the system, and optimized utilization becomes possible by evaluating the way the system works. Since various regions in Iran have arid and semi-arid climates, obtaining the act MoreOptimized management and utilization of any system requires knowing the working conditions of the system, and optimized utilization becomes possible by evaluating the way the system works. Since various regions in Iran have arid and semi-arid climates, obtaining the actual wind drift and evaporation losses and also making optimized use of water has a great importannce. The present research intended to evaluate a classic semi-permanent sprinkler, to measure wind drift and evaporation losses, and to introduce an optimized model by using multivariate regression for the study region. The study was conducted in Part of the Moghan agro-industrial complex in Ardabil province at wind speeds of 0-3 and 3-6 and higher than 6 meters per second with three replications. Results in ADF 25º nozzle sprinkler model indicated that the efficiencies of the system at wind speeds of 0-3, 3-6, and higher than 6 meters per second were 82, 66, and 43 percent, respectively, and wind speed, temperature, relative humidity, nozzle diameter, and vapor pressure deficit (saturation deficit) were among the factors that influenced wind drift and evaporation losses. The wind factor had the most and vapor pressure deficit the least effect on wind drift and evaporation losses. Furthermore, the equation of the best fit line to the measured values for wind drift and evaporation losses under the prevailing atmospheric conditions in the region was as follows and the difference between results of the model and observed data was not significant in 1% level of confidence. Moreover, the measured and the modeled percentages obtained for wind drift and evaporation losses varied from 6 to 34 and from 11to 35 percent, respectively. Manuscript profile -
Open Access Article
262 - Effect of partial root-zone drying irrigation and plant density on yield and water productivity of forage corn
Hossein Sahradi Fayaz AghayariTo study the effect of different methods of partial root-zone drying irrigation and plant density on yield and water productivity of forage corn a field experiment was carried out in split plot arrangement using randomized complete block design with four replications at MoreTo study the effect of different methods of partial root-zone drying irrigation and plant density on yield and water productivity of forage corn a field experiment was carried out in split plot arrangement using randomized complete block design with four replications at soil and water research institute, Karaj, Iran in 2014-2015 growing year. Different irrigation methods in three levels: I1: conventional furrow irrigation, I2: intermittent alternate furrow irrigation, I3: the fixed alternate furrow irrigation that were located in the main plots and plant density in three levels: D1: 75000 plants per hectare, D2: density of 85,000 per hectare, D3: density of 95,000 plants per hectare that were located in the sub plots. Results showed that the highest water productivity of Grain yield was achieved in treatment of the intermittent alternate furrow irrigation which showed 21.6 % significant increase in comparison to conventional furrow irrigation. Generally, method of intermittent alternate partial irrigation was a significant advantage compared to other irrigation methods in order to increase water productivity. The highest water productivity for biological fresh yield (11.97 kg.m-3) and WP for biological dry yield (3.91 kg.m-3) was achieved in treatment of the intermittent alternate furrow irrigation and density of 85,000 plant per hectare that increased 27.2% and 31.2% as compared to control treatment, respectively. Thus, method of partial root-zone drying irrigation (intermittent alternate) and density of 85,000 plants per hectare to increase productivity of forage corn is suggested in Karaj area. Manuscript profile -
Open Access Article
263 - Optimal nitrogen fertilizer consumption under sprinkler irrigation system in different seeding density and wheat cultivars in Karaj
Ghasem Zarei Hamidreza Salemi Hamidreza ُSharifiThe large area of wheat cultivation in Iran is located in arid and semi-arid regions and due to water shortage in end growing stage, there is competition between wheat and other crops for water allocation. In these conditions, using suitable seeding density and modern i MoreThe large area of wheat cultivation in Iran is located in arid and semi-arid regions and due to water shortage in end growing stage, there is competition between wheat and other crops for water allocation. In these conditions, using suitable seeding density and modern irrigation systems for yield increasing is important. Although Nitrogen is the most important element for quantity and quality of wheat, but over using of Nitrogen base fertilizers causes leaching, decreasing fertilizers use efficiency and groundwater contamination. This research was conducted during two years with Split Factorial Design experiment. The treatments of this experiment were: Three fertilizers application methods (conventional fertilizers application with full recommended amount, fertigation method with sprinkler irrigation and full recommended amount, and fertigation method with sprinkler irrigation and 70% nutrition recommended), three wheat variety (Pishtaz, Shiraz, and Bahar) and three plant density (300, 400, and 500 seed in each square meter). In this study the amount of water use, fertilizer requirement in case of fertigation, suitable density and variety of wheat under these conditions (sprinkler irrigation and fertigation) were determined and recommended for the region. Statictical test was used for identifying of data variation uniformity. Since the variation uniformity hypothises verified, the combine analysis of data was possible. Therefore, combine statistical analysis for two year were used. Maximum grin yield 6065, 5786 and 5943 kg/h were belonging to Pishtaz, fertigation method with sprinkler irrigation and full recommended amount and 400 seed density per square meter, respectively. Minimum grin yield 5517, 5708 and 5576 kg/h were belonging to Shiraz, fertigation method with sprinkler irrigation and 70% nutrition recommended fertigation and 500 seed density per square meter, respectively. Mean intraction effect comparison between fertigation methods, varieties and seed densities showed that maximum grin yield (6307 kg/h) was belonging to Pishtaz, fertigation method with sprinkler irrigation and full recommended amount fertigation and 400 seed density per square meter. However, minimum grin yield (5359 kg/h) was belonging to Shiraz, fertigation method with sprinkler irrigation and 70% nutrition recommended fertigation and 500 seed density per square meter. The most protein percentage were belonging to Shiraz variey, fertigation method with sprinkler irrigation and full recommended amount fertigation and 300 seed density per square meter. Also the leats protein percentage were belonging to Bahar variey, fertigation method with sprinkler irrigation and 70% nutrition recommended and 500 seed density per square meter. Maximum grin yield (5786 kg/h) and protein (20.8%) was belonging to fertigation method with sprinkler irrigation and full recommended amount, respectively. The amount of produced grin per appllied one kg Urea were 15.4, 15.5, and 22.8 kg in three fertilizer treatments, respectively. Therefore, the Nitrogen use efficiency in fertigation with 70% nutrition recommended (fertigation method with sprinkler irrigation and 70% nutrition recommended) was high. Results showed that the fertigation method with sprinkler irrigation and 70% nutrition recommended, Pishtaz variety and 400 seed density per square meter were suitable treatments in this experiment. Manuscript profile -
Open Access Article
264 - Evaluation management strategies to reducing agricultural water use (Case study: Marvdasht-Kharameh study area)
omid raja masoud parsinejad teymor sohrabiIrregular exploitation of water resources of the country, especially in the agricultural sector, has threatened Iran with serious threats. The main objective of this study is to provide of possible management strategies at farm level, without changing irrigation systems MoreIrregular exploitation of water resources of the country, especially in the agricultural sector, has threatened Iran with serious threats. The main objective of this study is to provide of possible management strategies at farm level, without changing irrigation systems and additional costs in order to reduce agricultural water consumption such as improving irrigation water efficiency, changing the planting date and studying different levels of deficit irrigation with regarding the type of cultivation, the actual conditions of irrigation management (amount, number of irrigation, etc.) in different areas of the study area have been checked. The basics of the study are based on actual information and in the form of a case study. . The results showed that improvement of irrigation efficiency for dominant crops in two regions of Dorodzan and Korbal, leading to savings in water allocation of 131.5 (11.2%) and 33.8 (10.83%) million cubic meters, respectively. The results of the scenario of change in planting date using AquaCrop model simulation showed that with this management pattern could be saved, 31.6 (2.7%) and 9.17 (2.94%) million cubic meters in the two regions of Dorodzan and Korbal in water consumption respectively . At the same time, different levels of deficit irrigation can save 85.5(7.3%) and 26.2 (8.4%) million cubic meters in water consumption respectively. Manuscript profile -
Open Access Article
265 - Responses of grass (Seashore Paspalum) to Rotational Management of Saline water
Sayyed-Hassan Tabatabaei Mohammad Pessarakli Negar NourmahnadApplying proper irrigation management can reduce the yield loss caused by salinity. Growth responses of Seashore Paspalum, in terms of shoot and root lengths, fresh and dry weights, and the general quality of the grasses were studied hydroponically in a greenhouse under MoreApplying proper irrigation management can reduce the yield loss caused by salinity. Growth responses of Seashore Paspalum, in terms of shoot and root lengths, fresh and dry weights, and the general quality of the grasses were studied hydroponically in a greenhouse under rotational levels of salinity stress. The experiment was arranged as a split plot based on randomized complete block design with four replications. Treatments include of five constant salinity levels as 5, 10, 20, and 30 gr/lit (named as Ctrl, C10, C20 and C30, respectively) as well as four more rotational salinity treatments (named as A10, A20 and A30). The results showed the maximum length of root and shoot (16.67 and 6.91 cm, respectively) was observed in Ctrl. At each salinity level, dry weight and fresh weight of shoot significantly increased in grasses grown under rotational salinity/control condition compared to their corresponding treatments under constant salinity stress condition. The percent of relative water content was higher in Ctrl, C10, A10 and A20. Also, C20 and C30 have the lower relative water content. Maximum water use efficiency observed at the Ctrl and then in A20 and A30. It concludes that rotational use of saline water causes improvement of WUE in grass. Manuscript profile -
Open Access Article
266 - Evaluation of yield, water use efficiency and Nitrogen efficiency in corn cultivation in Khuzestan province
maryam kazemizadeh abdorahim hooshmand abdali naseri mona golabi muosa meskarbasheeWater and nitrogen are the main factors limiting the maximum yield Achievement. Application of nitrogen fertilizer has great impact to increasing agricultural production. On the other hand, the high use of these fertilizers is due to the low efficiency of these fertiliz MoreWater and nitrogen are the main factors limiting the maximum yield Achievement. Application of nitrogen fertilizer has great impact to increasing agricultural production. On the other hand, the high use of these fertilizers is due to the low efficiency of these fertilizers. This research was conducted in response to the challenges of water scarcity and inappropriate management of nitrogen utilization. To quantitate the reaction of the plant and calculate the water and fertilizer efficiency, two irrigation levels, full irrigation (I1) and deficit irrigation equal 30% (I2) as the first factor and two nitrogen levels of 200 (N1) and 160 (N2) kg per hectare, it was considered as a second factor. Experiments were carried out as field treatments and in lysimeters as a factorial in a completely randomized block design with three replications. The cultivars used were maize hybrid 611 and 704 mediator SC, which were cultivated in two seasons of spring and autumn, respectively. Based on the results of this study, leaf area index with higher nitrogen application in the same moisture conditions is increased. Nitrogen increase, while that enough water is available to the plant, increases the weight of 1000 seeds, grain yield, biological yield and harvest index. Optimum use of water and nitrogen fertilizer increases grain yield and therefore increases water use efficiency. With increasing nitrogen content, nitrogen use efficiency decreases in corn cultivation. Under stress conditions, with increasing nitrogen consumption, fertilizer N-recovery efficiency is also reduced by decreasing the absorption of this element by the plant. The economic and biological efficiency of water use in autumn cultivation was more than spring cultivation. Low spring yield and high rainfall during autumn crop period were due to the efficiency and more productivity of water use in autumn cropping. In Khuzestan weather conditions, the use of early cultivars is recommended instead of the mediator for spring crop due to coincide the pollination time with intense heat. Manuscript profile -
Open Access Article
267 - Effect of magnetized water on hydraulic properties of tape irrigation system and yield and water use efficiency in maize
Jaefar Nikbakht Amir TaleiIn this research, effect of irrigation water crossing from fixed magnetized field on tape nozzle clogging and hydraulic properties of tape irrigation system as well as yield and water use efficiency in maize cv. Maxima were studied. The research was done from June to Oc MoreIn this research, effect of irrigation water crossing from fixed magnetized field on tape nozzle clogging and hydraulic properties of tape irrigation system as well as yield and water use efficiency in maize cv. Maxima were studied. The research was done from June to October in Research Farm of Zanjan University based on the complete randomized blocks in three replications with two treatments, irrigation water crossing and no crossing from field magnetic. Magnetic field was created by wire-tube method with an intensity of 0.1 Tesla. At the end of the growing season, drip irrigation system was evaluated. In addition, yield and yield components of maize were measured. Based on the results, at no magnetic irrigation system, mean of qa, Eu, Uc and Du decreased as 18%, 3%, 2% and 3% (respectively) and Cv increased 3% compared with magnetic irrigation system (significant differences). Calcite deposits in tape nozzles and their clogging caused it. Using magnetized water for maize watering increased total wet weight, total dry weight and leaf area (as 11%, 10% and 13%, respectively) comparing no magnetized watered crops and the differences were statically significant. As same water used for both magnetic and no magnetic treatments (5193 cubic meter per hectare), increasing of maize total wet weight in magnetic water caused significant increasing in water use efficiency as 1.7 kg/m3 (11%). Manuscript profile -
Open Access Article
268 - Increasing the water discharge coefficient of piano key weirs using physical models
Vafa Rezaei Sayed Habib Musavi-Jahromi Amir Khosrowjerdi Hossein SedghiOverflows play an important role technically and economically in optimizing the operation of water storage structures. Piano key weir is an advanced and developed type of spillway that can transfer large amounts of discharge by keeping executive costs constant. The aim MoreOverflows play an important role technically and economically in optimizing the operation of water storage structures. Piano key weir is an advanced and developed type of spillway that can transfer large amounts of discharge by keeping executive costs constant. The aim of this study was to determine the parameters affecting the discharge coefficient, using nine physical models. The ratio of the width of the input keys (Wi) to the output (Wo) in the seven overflows were: 1.0, 1.1, 1.2, 1.3, 1.4, 1.5 and 1.6 (PK1.0, PK1.1, PK1, PK1.3, PK1.4, PK1.5 and PK1.6 respectively) and the other two models included PKT (thicker-walled) and PKTP (thicker-walled and crown-enhanced). The effect of changing the width of the inlet (Wi) and outlet (Wo) keys on the discharge coefficient and stage-discharge curve, the effect of wall thickness and parapet wall were evaluated. Results showed that the best model for changing the inlet and outlet widths was the model of PK1.4, which resulted in 30% increase in discharge rate compared with the control. The increase in wall thickness led to an increase in the discharge at a 5% rate in comparison with control and installing parapet wall resulted in a 10% increase in discharge and a uniform distribution of flow lines on the weir. According to the results of this research, based on the superiority of three models of PK1.4, PKT and PKTP, the geometric properties of these models can be used as a model in optimizing the design of piano key weirs. Manuscript profile -
Open Access Article
269 - Efficient and Sustainable Use of Water Resources in Khuzestan through Water Footprint Benchmarking
Samira Salari Fatemeh Karandish Parviz Haghighatjou Maite AldayaBackground and aim: Anthropogenic water scarcity is among global concerns which threats the sustainability of the world in future. Overexploiting limited blue water resources for supplying human’s growing food demand is the main root of such a scarcity. Being stil MoreBackground and aim: Anthropogenic water scarcity is among global concerns which threats the sustainability of the world in future. Overexploiting limited blue water resources for supplying human’s growing food demand is the main root of such a scarcity. Being still in its infancy, water footprint (WF) benchmarking is a proper method to determine the inefficient fraction of water consumption. Hence, we assessed if achieving benchmark levels can limit agricultural WF to its sustainable cap in Khuzestan province, which is the agricultural backbone of Iran.Method: The research consists of three stages including WF accounting, and sustainability and efficiency assessment. First, consumptive and degradative WFs were accounted for 32 in counties of Khuzestan province over the period 1986-2016. Green and blue WFs were accounted by dividing green and blue evapotranspiration by crop’s yield, respectively. The AquaCrop model was used to simulate daily evapotranspiration, and then, seasonal values were estimated by aggregating daily values. Grey WF was estimated for the applied nitrogen fertilizer in croplands. In the next stage, the sustainability status of water consumption pattern was assessed by dividing overall blue WF by blue water availability. The latter was estimated by subtracting environmental flow requirements from natural runoff. Thereafter, WF benchmarks were extracted for 10th, 25th, and 50th level of crop production, and based on which, the inefficient fractions of blue WFs were estimated for individual crops. Finally, inefficient blue WFs were compared with unsustainable ones to know if achieving benchmark levels can limit agricultural blue water consumption to its sustainable caps in the study area. A correlation assessment was also done to determine the main roots of inefficiency in Khuzestan province.Results: Along with a 63% increase in crop production and 53 increase in unit blue WF, the overall blue WF increased by 80% over the study period. Such an increasing pattern caused groundwater overexploitation with an annual average rate of 12 million m3 y-1. The contribution of green WF in consumptive WF decreased from 60% in 1986 to 48% in 2016. Overall grey WF, however, followed a decreasing trend, with an average annual decreasing slope of 140 m3 ha-1 y-1, which mainly occurred by a considerable reduction in cash crop’s grey WF. In 2016, a total of 0.98 billion m3 of blue water was consumed unsustainably, which was roughly 85% higher than one in 1986. The number of countries with unsustainable water consumption also increased from 2 counties in 1986, to 9 counties in 2016. Stable crops had the largest contribution in unsustainable WF. Based on the results of efficiency assessment, and considering WF benchmarks developed at 25th of crop production level, inefficient blue WF varies in the range of 0.26 to 606 million m3 y-1 in different counties in 2016. Compared with 1986, the inefficiency increased by 10-3860 m3 ha-1 in 16 counties in 2016. While achieving benchmark levels can reduce blue WF to its sustainable level at provincial scale, unsustainable blue WFs in Andimeshk and Ramshir counties are still 6.8 and 340.9 million m3 higher than the inefficient blue WFs, respectively. The correlation assessment showed that inefficiency increase along with any increase in added value by agricultural production and/or export, unit blue WF, blue water scarcity level, and access to groundwater consumption; while it decreases with any increase in the number of employees per ha, crop yield, and cash crop’s harvested area.Conclusion: WF assessment showed that crop production in Khuzestan province is done at the cost of deteriorating environment, which threats the stability of agricultural system in near future. While achieving benchmark levels helps with being limited to sustainable WF caps through removing inefficient blue WF fractions, there are still the risk of unsustainability in some regions, which indicates the importance of high-resolution assessments for determining hotspots. Hence, further research is required to determine temporal hotspots as well, in order to implement a proper sustainable development plans. Manuscript profile -
Open Access Article
270 - Performance Evaluation of Different Biological Filters for Treatment of Nutrients Agricultural Drainage
Ali Kianpoor Bahman Yargholi Ahmad Sherafati Keramat AkhavanBackground & Objectives: Due to the high consumption of water in agriculture, considerable drainage is produced annually. Currently, a significant volume of drainages (almost 3 BCM) is entered into the Khuzestan province environment without any beneficial use, resul MoreBackground & Objectives: Due to the high consumption of water in agriculture, considerable drainage is produced annually. Currently, a significant volume of drainages (almost 3 BCM) is entered into the Khuzestan province environment without any beneficial use, resulting soil and water contamination. On the other hand, according to Iran's water problems, the quality conservation of water resources and the use of unconventional water resources are essential, especially drainage quality management, and applying them to agriculture and the environment. Materials & Method: This research is carried out to evaluate the efficiency of biological filters with different beds for the treatment of agricultural drainage in Mirza Kooch Khan and Amirkabir Agro-Industry fields in Khuzestan province of Iran during the spring and summer of 2019. The research aims to reduce drainage contamination when discharged into the environment and drainage reuse in agriculture. In this research, the effect of four different types of biological filter including wheat straw, rice husk, cotton stalk, and wood sawdust as the main factor and three retention time of 2, 5 and 10 days as the secondary factor are investigated. The quality factors monitored include turbidity, EC (as a salinity index), total nitrogen (TN), total phosphorus (TP), and BOD. Results: Analysis of variance demonstrates a significant difference between the mentioned treatments in terms of the studied parameters (at the level of 1%), except for pH. According to the results, the highest average refinement of qualitative factors based on filter type for turbidity equals 37.87% and relates to the treatment of cotton stalk. For EC, TN, TP, and BOD equal to 9.23%, 49.60%, 46.50%, and 97.59%, respectively, and relate to wood sawdust. Moreover, the average of the highest percentage of pollution reduction for the investigated factors is related to the retention time of 10 days, which for turbidity, EC, TN, TP, and BOD are equivalent to 56.79%, 12.97%, 66.51%, 53.49%, and 80.20%, respectively. Conclusion: Observed results indicate that wood sawdust treatment has a relatively better performance than other treatments. This issue is important since the existence and abundance of this material in the country is high. In addition, due to the importance and effectiveness of hydraulic retention time in treating, it has a direct relationship with efficiency of treating. However, the increase in efficiency from the retention time of 2 days to 5 days is more significant than the increase of retention time from 5 days to 10 days, which can be considered an important factor in selecting the retention time based on pollutants concentration in the drainage. As a result, based on the concentration of input and output quality parameters, it is suggested to use a wood sawdust filter with a 5-day retention time due to its proper performance and being more economical in terms of volume and dimensions of the system. Manuscript profile -
Open Access Article
271 - Study the Long-Term Effects of Industrial and Agricultural Uses on the Fluctuations of the Groundwater Level of Shazand Plain
Siamak Amiri Ahmad Rajabi Saeid Shabanlou Fariborz Yosefvand Mohammad ali IzadbakhshBackground and Aim: Nowadays, by increasing the water demand in different sectors, the withdrawal amount from groundwater resources is increasing leading to more drawdown of Markazi province aquifers. One of the most suitable methods for the optimal management of ground MoreBackground and Aim: Nowadays, by increasing the water demand in different sectors, the withdrawal amount from groundwater resources is increasing leading to more drawdown of Markazi province aquifers. One of the most suitable methods for the optimal management of groundwater resources is the analysis of the behavior of aquifers in various conditions using mathematical models. The objective of this paper is to investigate the effects of withdrawal for agricultural and industrial consumptions on the groundwater level of the Shazand plain located in Markazi Province and the impact of a 20% increase in irrigation efficiency of farms in the case of the development of under pressure and low-consumption systems using the GMS numerical model. Method: First, the conceptual and numerical model of the Shazand aquifer was executed in the GMS software and calibrated in the steady state. Then, the model was recalibrated in a transient state for the statistical period from October 2015 to September 2019. To examine the reactions of the model to the changes of important and effective parameters, the sensitivity analysis of the model was performed and the model was verified for the statistical period of October 2019 to September 2021. Then, the changes in the groundwater level in the aquifer under two reference management scenarios and increasing irrigation efficiency were investigated and compared. In the reference scenario assuming the continuation of the current conditions and in the efficiency increase scenario assuming a 20% increase in irrigation efficiency, the simulation of changes in the groundwater level in the entire Shazand plain for the upcoming 20 years from October 2021 to September 2041 was carried out. Results: Based on the obtained results, the RMSE error value related to the steady state recalibration is about 0.7 meters and the average RMSE error value in the transient state in all months of simulation in two recalibration and validation periods is less than 0.6 meters, which shows the high accuracy of the model in simulating the groundwater level in the whole plain. The sensitivity analysis showed that the changes in specific yield and hydraulic conductivity parameters have the greatest effect on the fluctuations of groundwater in the whole plain. The results showed that in the reference scenario, the drop in the groundwater level at the end of the 20-year operation period is 3.95 meters. In the scenario of a 20% increase in efficiency, with the reduction of extraction from wells due to the increase in irrigation efficiency, the amount of drop will reach 2.76 meters, in which case the amount of drop will be mitigated by 1.2 meters. Conclusion: According to the results, the highest drop in the groundwater level in both reference and increase in efficiency scenarios in the central areas of the plain is 9.2 and 6.9 meters, respectively, and the lowest drop in the western areas of the plain is 1 and 0.5 meters, respectively. Considering that the agricultural sector has the greatest impact on the level drop in the aquifer in the central areas of the plain, it is better to focus management plans to control withdrawal from the aquifer, such as increasing efficiency or modifying the cultivation pattern, on this sector. In case of the implementation of systems under pressure and increasing efficiency in the plain, the amount of drawdown in the region will be mitigated to some extent, but the problem will not be solved and it is necessary to implement supplementary programs to cultivate high consumption plants instead of high consumption crops and in the industry sector instead of extracting groundwater, treated municipal wastewater should be used. Manuscript profile -
Open Access Article
272 - Laboratory investigation on sediment particle size and inlet and outlet angles effect on trapping efficiency in invert traps
Ali Aryanfar Mahmood Shafai Bejestan Amir Khosrojerdi Hossein BabazadehInvert traps are one of the most effective methods for separating and collecting sediments in open channels. In this research, some experiments were performed in a channel with 4 m long and 25 cm wide for 13 different invert trap configurations with different inlet and MoreInvert traps are one of the most effective methods for separating and collecting sediments in open channels. In this research, some experiments were performed in a channel with 4 m long and 25 cm wide for 13 different invert trap configurations with different inlet and outlet angles. To determine the best trap geometry that has the most retention ratios, four types of plastic beads as a laboratory sediments with the same density but different size and apparent weight were tested in a constant time. Results showed that the inlet and outlet angles of the trap, has a considerable impact on the amount of deposited sediments. In the case of vertical walls of the entrance, whatever outlet wall of the trap has milder angle, trapping rate was larger the incoming angle of the trap was smooth and the outlet wall is vertical, although sediments could easily sinked in, but due to strong vortices formed downstream of the trap, much of these sediments re-suspended and directed away from the trap. Quantitative analysis of the results showed that from the 13 tested geometries, trap with inlet angle of 90° and 34° as an outlet angle, has the highest efficiency on trapping the sediments. Manuscript profile -
Open Access Article
273 - Temporal and spatial study of water use efficiency of strategic crops in regional scale (Case study: Hamadan province)
Mohammad Ali Bayat Mohammad ManshouriAgriculture sector is the largest water consumer in Iran in terms of water volume. Improvement of water use efficiency in this sector would enhance economic efficiency on one hand, and alleviate the challenges of limited renewable water resources on the other MoreAgriculture sector is the largest water consumer in Iran in terms of water volume. Improvement of water use efficiency in this sector would enhance economic efficiency on one hand, and alleviate the challenges of limited renewable water resources on the other hand. Considering this fact, for identification of spatial and temporal variation of wheat crop water use efficiency, this research was carried out in Hamadan province area. The main objective of this study was to identify the best location and scheduling for planting wheat crop to obtain maximum water use efficiency. Wheat evapotranspiration was determined at selected meteorological stations and overall evapotranspiration in the area has been determined using IDW interpolation method. Then, the GIS map of wheat water use efficiency was produced using wheat yields data. The results indicated that west and south-west area of the province have the highest water use efficiency for wheat production. Manuscript profile -
Open Access Article
274 - The effect of irrigation regime and manure on water use efficiency and yield of potato in Jiroft
Atefeh Afshar Ali Neshat GholamReza AfsharmaneshConsidering the limited resources of water and dominant draughts, deficit irrigation is an important strategy to obtain the product in water shortage conditions. Deficit irrigation aims to produce more products from less water. Therefore, an experiment was con MoreConsidering the limited resources of water and dominant draughts, deficit irrigation is an important strategy to obtain the product in water shortage conditions. Deficit irrigation aims to produce more products from less water. Therefore, an experiment was conducted in order to evaluate the impact of deficit water and poultries manure on the performance, performance components, and water use efficiency of potato in Jiroft. The experiment was conducted in strip-plot form in the complete random blocks design with three replications. Three water levels as a main factor including 100, 75 and 50 percent of plant water requirement and four manure levels as secondary factor including 0, 5, 10 and 15 Ton ha-1 were considered. The results indicated that different levels of irrigation and poultries manure on both water use efficiency and potato yield were (1%). Also, the impact of different levels of irrigation and the poultries manure on the weight of potato tuber is significant. Moreover, the interaction of the irrigation regime and poultries manure on water use efficiency and potato yield was not significant. Furthermore, the effect of different levels of irrigation and poultries manure alone on the plant height was not significant, but their interaction was significant. Though the effect of different irrigation levels on the percentage of dried material of tuber was not significant, the impact of different levels of poultries manure, and the interaction of irrigation regime and poultry manure on tuber dry matter was significant. Manuscript profile -
Open Access Article
275 - Optimization of water use efficiency and yield in potato using marginal analysis theory
Parviz fathi Mohammad soltaniWater scarcity is a widespread problem in arid and semi arid regions. In this condition, evaluating crop response to water stress and estimation of ET production function (ETPF) is essential. The objective of this study was to investigate the dynamic interrela MoreWater scarcity is a widespread problem in arid and semi arid regions. In this condition, evaluating crop response to water stress and estimation of ET production function (ETPF) is essential. The objective of this study was to investigate the dynamic interrelations of yield, evapotranspiration and water use efficiency of potato (Solanum Tuberosom L.) under trickle irrigation condition. This study was conducted in Dehgolan region of Kurdistan province in spring season of 1388. The experiment was arranged based on completely randomized block with 3 replication of water supply (60%, 80%, 100%, 120% of crop water requierment). In this study, evapotranspiration values and total yield of treatments were measured. To reveal the interrelations of yield, evapotranspiration and water use efficiency, two types of water production function including: Linear and Quadratic were used. The results showed that when the ETPF is linear, the EI will be numerically equal to the yield response factor (Ky), when ET reaches maximum ET (ETm). When ETPF was quadratic, the ET needed to maximize WUE is less than the ET for maximum yield (Ym). The results were also revealed that maximum yield was achieved at 345 mm of evapotranspiration and maximum water use efficiency (26.6 kg/m3) was achieved at 222 mm of evapotranspiration where 55.4 percent was less than the maximum evapotranspiration (ETm). However, the maximum yield was only 27.7 percent more than the yield in maximum water use efficiency. The interrelation of Y, ET and WUE are demonstrated that if water supply is limiting, seeking maximum water use efficiency may be desirable. Manuscript profile -
Open Access Article
276 - Evaluation of the Antioxidant Activities of Roasted and Unroasted Coffee Extracts
Sahar Khorsand Manesh Mehrada Ghavami Behzad BazyarIntroduction: Oxidation is one of the most important spoiling reaction in the oils and fats and might be delayed by the use of antioxidants to some extent. Coffee contains some effective phenolic antioxidants such as chlorogenic acids, caffeic acids ester and quinnic ac MoreIntroduction: Oxidation is one of the most important spoiling reaction in the oils and fats and might be delayed by the use of antioxidants to some extent. Coffee contains some effective phenolic antioxidants such as chlorogenic acids, caffeic acids ester and quinnic acids. The object of this research is to study the antioxidant activities of coffee extracts. Materials and Methods: In this research work coffee extracts were obtained by hexane and isopropanol after three hours of extraction period. The extracts yields and total phenolic compounds were determined using Folin ciocalteu method. The hexanolic and isoporopanolic extracts of both roasted and unroasted coffee from two varieties of coffee (Arabica, Robusta) were added to tallow at different concentrations. Peroxide value at 100UC (oven) and Induction period measurements at 110UC (Rancimat) were used as means to examine and investigate the antioxidant activities of the above extracts. Results: The results indicated that coffee extracts inhibited antioxidant activities and were able to reduce the oxidation chain reaction. The highest yield of phenolic compounds, taking Gallic acid as the index was related to the extracts obtained by isopropanol and accounted for 2.17 mg/g of dry matter. This might be due to higher polarity of isopropanol as compared to hexane. Conclusion: Among the extracts isopropanolic extract of roasted Robusta with 15% concentration exhibited the best antioxidant activity. Manuscript profile -
Open Access Article
277 - Comparative Study of the Effects of Ultrasound and Microwave Treatments on Soybean Oil Extraction
M. Haddadi M. Gharachorloo B. Ghiassi TarziIntroduction: The continuous need of human society to extract vegetable oils has led to many studies on the introduction of a more efficient and economical extraction process. The purpose of this study is to determine the effect of ultrasonic and microwave applications MoreIntroduction: The continuous need of human society to extract vegetable oils has led to many studies on the introduction of a more efficient and economical extraction process. The purpose of this study is to determine the effect of ultrasonic and microwave applications as new methods for extracting oil and also studying the physicochemical properties of the extracted oil using two ultrasonic and microwave pre-treatments. Materials and Methods: In this study, soybean oil was extracted by ultrasound at three different time intervals of 30, 60 and 90 minutes, and two different temperatures of 25 and 50 °C in the presence and absence of solvent. Microwave was also applied as heat pre-treatment at three different time intervals of 1, 3 and 5 minutes, and 180 watts in the presence and absence of solvent. Soxhlet method was applied as a mean to extract the oil. The physicochemical properties of the extracted oils were studied. Results: In the present study, the ultrasound treated samples had the highest effect on oil extraction efficiency at 50 °C for 90 minutes by solvent-treated seeds, and this effect was significant (p <0.05). Ultrasound pretreatment increased oil pigments extraction in comparison with other methods and had less effect on acidity and peroxide values than microwave pretreatment. Conclusion: Microwave preheating and ultrasound were superior to Soxhlet's method alone in the extraction efficiency of soybean oil, and ultrasound pre-treatment showed the best results. Additionally, the microwave and ultrasound extraction methods did not have adverse effects on physicochemical characteristics of soybean oil. Manuscript profile -
Open Access Article
278 - Evaluation of Solvent Extraction Efficiency –Chemical Analysis of the Oil Extracted from Apple Seeds
M. Azizi A. A. Safekordi -
Open Access Article
279 - Investigation the effect of porosity on the thermohydraulic performance of a solar air collector with perforated obstacles
Amin Ghalenoei Majid SabzpooshaniBackground and Objective: Due to undesirable thermo-physical properties of the air, the solar air collectors do not benefit from the high thermal efficiency and need to be improved with the help of different methods. In this study, the effects of using various obstacles MoreBackground and Objective: Due to undesirable thermo-physical properties of the air, the solar air collectors do not benefit from the high thermal efficiency and need to be improved with the help of different methods. In this study, the effects of using various obstacles on the thermohydraulic performance of a collectors were examined experimentally and compared to the performance of a simple collector. Material and Methodology: A solar air collector was designed, built and tested under the environmental conditions of Abadan city in Khuzestan province. Three different perforated obstacles with three hole sizes (3, 4 and 5 cm) were placed on the absorber plate. Measured parameters include the temperature of inlet and outlet air, absorber plate, pressure drop and solar radiation. Measurements were made for two different air flux (0.0218 and 0.0364 kg/s). Findings: It has become clear that using various perforated obstacles increases the temperature difference between inlet and outlet air and subsequently their efficiencies compared to a simple conventional collector. It was also noted that in all cases, the increase in mass flowrate causes increasing the effective and thermal efficiency of system and decreasing the temperature difference between inlet and outlet air. Temperature difference in the best case (perforated obstacles with 3 cm holes) for each of the two flowrates increases twice compared to the simple collector. Also, the highest amount of average efficiency for two flowrates is 68% and 83% and the average effective efficiency is 28.4% and 34.1%. Discussion and Conclusion: With the reduction of sizes of the holes in the perforated obstacles, the rate of heat transfer and subsequently the thermal efficiency of the collector will increase due to increasing the turbulence of the flow. This causes the pressure drop to rise up as well but also has a positive effect of increasing the temperature difference which dominates the negative effect of the pressure drop and eventually it becomes clear that there is a direct relation between increasing the effective efficiency with reducing the size of the holes. Manuscript profile -
Open Access Article
280 - Experimental Study of the Effect of Using Fin on the Fire Tube of Gas Pressure Reduction Station Heater on Thermal Efficiency and and Reducing the Emission of Greenhouse Gas
Saeed Rastegar Hadi Kargarsharifabad Nader Rahbar Mohammad Behshad Shafii,Background and Objective: The pressure of the natural gas at the pressure reduction station is reduced by the regulator and by the general law of the gases, the gas temperature is reduced by decreasing in constant volume. If the gas temperature falls below the dew point MoreBackground and Objective: The pressure of the natural gas at the pressure reduction station is reduced by the regulator and by the general law of the gases, the gas temperature is reduced by decreasing in constant volume. If the gas temperature falls below the dew point temperature, it can form hydrates, freeze, and eventually blockage and clogging of the gas passage. Therefore, indirect water bath heater is used to increase the gas temperature before the pressure reduction. At present, the thermal efficiency of these heaters is very low and a large amount of fuel is wasted in the heaters. Material and Methodology: In this paper, using fin in the gas pressure reduction station heater fire tube on its thermal efficiency and greenhouse gas investigated experimentally and and the thermodynamic and heat transfer characteristics of the heater are compared in the usual case and in the fin state. Findings: The results showed that using fin in the heater fire tube increased the thermal efficiency of the heater and the heat transfer coefficient by 14% and 19%, respectively. Discussion and Conclusion: If the results of the increasing in efficiency were applied to all gas pressure reduction station heaters, the energy saving and the reduction of greenhouse gas emissions over one year were estimated to be 40 million cubic meters and 76.75 thousand tons, respectively. Manuscript profile -
Open Access Article
281 - Improving efficiency of a gas cyclone in high-temperature operating conditions by using appropriate geometry of vortex finder
Akbar Jafarnezhad Hesamoddin SALARIAN Saeid Kheradmand Jahanfar KhaleghiniaBackground and Objective: Cyclones are widely used in air pollution control to separate particulate gas mixtures and are used in industry. The advantages of this device in different industries are its relative simplicity of construction, low operating cost and reliable MoreBackground and Objective: Cyclones are widely used in air pollution control to separate particulate gas mixtures and are used in industry. The advantages of this device in different industries are its relative simplicity of construction, low operating cost and reliable under extreme working conditions. Today, cyclone separators have become one of the most important particle removal devices in the fields of science and engineering. Due to the wide application of cyclones in industrial processes, especially thermal power plants, the study of the performance of cyclones at high temperatures is of particular importance. In the present study, two-phase flow simulation within a cyclone will be performed in three different dimensions using the Eulerian-Lagrangian approach in order to study the cyclone performance in a wide range of temperatures, and finally the problem of its lower performance will be substantially resolved by using appropriate geometry of vortex finder. Material and Methodology: In this study, the effect of inlet temperature on the flow field and the separation performance of a cyclone has been comprehensively investigated using CFD simulation. The Euler-Lagrangian approach has been used to simulate airflow and particle dynamics in cyclones. In addition, four proposed vortex finder geometries were considered and compared with the basic geometry in order to evaluate how the vortex finder affects the cyclone performance under a wide temperature range (293 K-700 K). The validity of the numerical model is confirmed by comparing the predicted pressure drop with the experimental data and numerical results in which there is a good agreement was achieved. Findings: The results demonstrated that increasing of inlet temperature significantly reduced the tangential velocity and led to a sharp decrease in the cyclone separation efficiency. All of the proposed vortex finders affected the flow pattern within the cyclone at all inlet temperatures. The simulation results showed that the highest tangential velocity observed in the cyclone was with CVF 1, which also had a positive effect on the relevant separation efficiency. Also, it is proved that the proposed cyclone with CVF 1 was able to collect finer particles (2 μm) at high inlet temperature (T = 700 K). Discussion and Conclusion: In the present study, while examining the performance of cyclone using the Eulerian-Lagrangian approach in three dimensions over a wide temperature range, a suitable solution to improve efficiency and solve the problem of efficiency drop at high temperatures was presented. By properly changing the dimensions and geometry of the vortex finder, the flow in the pre-separation zone can be well controlled to improve particle separation efficiency. Manuscript profile -
Open Access Article
282 - Determining the standards for green spaces planning and site selection in urban areas to achieve ecological efficiency (Case study: Tabriz city)
reza jahanbin pakhshan khezr nezhadBackground and Objective: Prior to any planning for the development of urban green spaces, standards for green space development should be identified. From the very important principles of urban planning knowledge, it is necessary to address users in terms of standards MoreBackground and Objective: Prior to any planning for the development of urban green spaces, standards for green space development should be identified. From the very important principles of urban planning knowledge, it is necessary to address users in terms of standards and per capita and locate them. Air, sound and visual pollution is caused by urbanization that nowaday human societies are facing. Therefore, considering the green space use as an air styler and space organizer, is necessary to achieve the ecological efficiency of cities. The purpose of this study is to identify the criteria location and green spaces planning, that it is the achievement of providing solutions for operating the general principles of green space development, so that it can be generalized to similar cases. Method: The present study is a fundamental-applied research method and a descriptive-analytical study. To collect the data, Libraries and documents Sources was utilized. Data analysis was mainly based on qualitative analysis method and also using ARC / GIS software. Findings: Findings of this study show that none of the per capita in Tabriz city are in accordance with the standards of urban planning and environmental point of view. From the urban planning point of view, in the plan comprehensive, per capita of about 15 m2 is proposed for each person, this per capita in the current situation for Tabriz is equal to 1/69 m2. From the environmental point of view, in the plan comprehensive, is between 15-50 m2 per person while per capita city in the current situation is equal to 11.69 m2. Discussion and Conclusion: The results of the study show that in the city of Tabriz, the criteria and development principles green spaces planning and their location criteria, including per capita in neighborhoods, environmental and ecological criteria, and spatial metrics such as centrality, hierarchy, and access has not been regarded. Therefore, the status of the green spaces use in the present situation of Tabriz city do not match with the proposals of the comprehensive and details plan, and with national and international standards. Moreover, the lack of optimal distribution in the city is quite evident. Therefore, the calculation of the appropriate level of green space and its balanced distribution in the city is the key issue, so that the process of achieving the ecological efficiency of the city is possible. Manuscript profile -
Open Access Article
283 - Evaluation of Effective Parameters in Organic Matters Removal Efficiency of Anaerobic Baffled Reactor Employing Electrolysis Process
Gagik Badalians Gholikandi Behnam Inanloo Beklar Maryam AmouamouhaBackground and Objective: Following the results of the electrolysis process application to upgrade the anaerobic baffled reactor for treating wastewater, the present study was conducted to evaluate the EABR performance efficiency, considering hydraulic retention time (H MoreBackground and Objective: Following the results of the electrolysis process application to upgrade the anaerobic baffled reactor for treating wastewater, the present study was conducted to evaluate the EABR performance efficiency, considering hydraulic retention time (HRT), current density and organic loading. Methods: In this study, a semi-industrial pilot of ABR with total volume of 72 L was studied before and after integration with an electrolysis system. The performance of the reactor was evaluated in terms of COD removal and bacterial adaption time. Findings: The findings revealed that a HRT reduction from 45 to 38 and 29 hours results in a decrease of COD removal efficiency from 77.6 to 74.9 and 72.2 % respectively. Also, a current density reduction from 3 to 2, 1, and 0.5 Mill ampere/cm2 results in a decreasing COD removal efficiency from 77.6 to 73.5, 71.2, and 70 % respectively. Moreover, an increasing organic loading from 700 to 2400 mg/L enhanced the COD removal efficiency from 77.6 to 90.2 %. Result and Discussion: The results showed that by increasing organic loading from 700 to 1000, 1500, 2000, and 2400 mg/L the necessary HRT for achieving operation stability increases from 3 to 8 days, which is less than in conventional ABR. Therefore, employing electrolysis process is a sustainable method for improving ABR performance efficiency. Manuscript profile -
Open Access Article
284 - Environmental Impact Assessment of Soybean Cultivation in Ardabil Farms
Majid Dekamin morteza barmaki Amin Kanooni Reza MosaviBackground and Objective: Calculating the environmental impact assessment during a product's life cycle is very important. Therefore, the purpose of this study was to evaluate the environmental effects of soybean oil production (Glycine max) in Ardabil province. Method: MoreBackground and Objective: Calculating the environmental impact assessment during a product's life cycle is very important. Therefore, the purpose of this study was to evaluate the environmental effects of soybean oil production (Glycine max) in Ardabil province. Method: Lifecycle assessment was conducted to compare environmental burdens of this crop. Four categories (eutrophication, acidification, global warming potential and photochemical oxidation) of environmental impacts were used to define in this method. Inventory phase was conducted in 1393. Findings: The production of one-ton soybean in Ardabil in eutrophication potential, acidification potential, photochemical oxidation and global warming are 13.671 kg PO4eq, 13.680 kg SO2eq, 0.093 kg C2H4 eq and 857.128 kg CO2eq respectively. Discussion and Conclusion: It was found that the effects from the three crops comes generally from manufactured fertilizer, manure, diesel combustion, agricultural practices, and electricity for irrigation. It can be said that the indirect effects associated with these inputs are related to producing and processing, which had negative impacts. Result indicated that input performance of production of one-ton soybean is low. With increasing crop yield per input can decrease environmental burdens. Manuscript profile -
Open Access Article
285 - Feasibility of using geothermal energy in building in order to reduce carbon dioxide pollutant emissions in environment (Case Study: Hamedan)
mahdi shaabanian mohammadhadi kaboli ali dehghanbanadaki leila zareBackground and Objective: The thermal behavior of underground buildings is different from that of above ground buildings. The approaching temperature of the inner layers of the earth to the average annual outdoor temperature reduces the heat exchange of these buildings MoreBackground and Objective: The thermal behavior of underground buildings is different from that of above ground buildings. The approaching temperature of the inner layers of the earth to the average annual outdoor temperature reduces the heat exchange of these buildings compared to buildings on the ground. Reducing energy consumption reduces greenhouse gas emissions. The purpose of this study is to evaluate the feasibility of using geothermal energy in buildings to reduce carbon dioxide emissions in the city of Hamedan with cold climatic conditions in 2019. Method: The simulation was performed by using version 8-1-0 of Energy Plus software. In the model, a standard 900 Ashrae sample space with residential usage was considered. At first the building was located on the ground as default and its energy consumption was set to 0/424 MWh /m2. In later stages, the sample is gradually placed in depth in successive steps equal to 0.5, 1, 1.5, 2, 2.5 and 3 meters. Findings: findings showed that in each depth, 14.51%, 28.38%, 44.56%, 57.25%, 74.70% and 79.07% of the annual energy requirements of the sample space has been reduced. On the other hand, in each scenario, the carbon dioxide pollutant emissions as the main greenhouse gas, has been declined to 0.65, 1.27, 1.99, 2.57, 3.35 and 3.55 percent, respectively. Discussion and Conclusion: Therefore, It was concluded that Placement of buildings under the ground reduces carbon dioxide pollutant emissions in environment. Manuscript profile -
Open Access Article
286 - Determining the efficiency of farmers with emphasis on proper management of chemical input consumption and environmental effects (Case study of beet growers in Ghaen city)
elahe Ahani Hamid Mohammadi وحید دهباشی Alireza Sarghazi S.Mohammad Jafari EsfahaniBackground and Objective: Sugar beet, as one of the important sources of energy supply, plays an important role in food security of society. Therefore, the optimal use of agricultural inputs in the production of this product, in addition to increasing productivity and r MoreBackground and Objective: Sugar beet, as one of the important sources of energy supply, plays an important role in food security of society. Therefore, the optimal use of agricultural inputs in the production of this product, in addition to increasing productivity and reducing production costs, leads to reducing greenhouse gas emissions and reducing the negative impact of improper consumption of agricultural inputs on the environment. Finds. In this regard, the purpose of this study was to determine the efficiency range of farmers based on the use of agricultural inputs in an optimistic-pessimistic framework, and analyze the environmental effects of input consumption. Material and Methodology: Information needed to conduct research was collected through interviews and completing 48 questionnaires among sample beet growers in Ghaen city in the 99-98 crop year. Findings: The average efficiency of farmers in the output-input mode was equal (0.7011, 1.7606) and the average efficiency of farmers (0.427, 0.0352) was calculated. The results show that 42.7% of the product is produced per unit consumption. Also, the average amount of inputs such as: seed consumption, phosphate fertilizer, nitrogen and toxins in the production of sugar beet, respectively, is estimated at 3.370, 54.2, 139.70 and 2.523 kg / ha. The amount of carbon dioxide emitted due to the production of sugar beet and the consumption of essential inputs such as: nitrogen fertilizer, and seed consumption, the toxin is 1480.73, 984.65, 1.53, 11.49 kg / ha, respectively. According to the results, nitrogen fertilizer has the greatest environmental impact. Discussion and conclusion: In the production of sugar beet, different types of inputs are used, which in addition to increasing the yield, also have an environmental effect. Therefore, by informing farmers through their presence and participation in extension classes and also by educating farmers about the proper management and consumption of chemical inputs, the harmful effects of their overuse in the production process can be prevented. Brought. In order to reduce the biological and protective effects, reduce the use of chemical fertilizers and replace livestock and organic fertilizers by producers and policy makers should be considered. Also, review the implementation of subsidy reduction policies and the realization of the price of chemical fertilizers and consumer inputs. Manuscript profile -
Open Access Article
287 - Design for Disassembly and Shifting to Eco-Friendly Architecture
Seyed Mehdi Amirkiaei Seyed Majid Mofidi Shemirani Mohammadjavad Mahdavinejad Mohammadmehdi RaissamieiBackground and Purpose: Construction and demolition waste management is one the controversial issues in building industry. The “hidden water” and the “hidden energy” of building material are from among the most important issues in designerly appr MoreBackground and Purpose: Construction and demolition waste management is one the controversial issues in building industry. The “hidden water” and the “hidden energy” of building material are from among the most important issues in designerly approach to energy efficiency under the high-performance architecture theory. The aim of the research is to outline the concept of design for disassembly in order to minimize construction and demolition waste (C&DW) and facilitate appropriate disposal. Materials and Methods: Descriptive-analytical method has been adopted in which description of the theoretical concepts has merged with an analytical approach to the expert opinions. Results: Studies have shown that the successful cases in the framework of design for disassembly were deliberately designed with dismantling prediction from the early stage of the design process. Integrated approach toward the life cycle is the key factor in eco-friendly design and construction which is based on recycling, creative reuse, repurposing and upcycling strategies as a part of “green aesthetics”. Discussion and Conclusions:The concept of design for disassembly rots from flexibility in architectural design process and is an influential procedure for C&DW. The life cycle assessment (LCA) is a comprehensive methodology to address gains of the concept of design for disassembly. Moreover it has showed a meaningful relationship between design for disassembly and the environmental impacts which might be addressed as designerly approach to energy efficiency. Manuscript profile -
Open Access Article
288 - Evaluating the Effect of Cost of Environmental Pollution on Efficiency (Case study: China's economic zones)
fatemeh Mehregan Soheyla SeyedboyerBackground and Objective: The purpose of this study is to evaluate the environmental impacts on the value of efficiency. Industries and companies making environmental pollution, bring costs to the community, which in the most cases are not taken into account for measuri MoreBackground and Objective: The purpose of this study is to evaluate the environmental impacts on the value of efficiency. Industries and companies making environmental pollution, bring costs to the community, which in the most cases are not taken into account for measuring efficiency. This study has attempted to find a proper model for evaluating efficiency using the two-stage data envelopment analysis, considering the costs of environmental pollution. Cost loss resulted from applying environmental constraints on undesirable outputs, are also discussed and calculated. Method: An analytical-descriptive method is utilized in this study. Two-stage data envelopment analysis has been used here to measure efficiency. At first, environmental constraints have been made up with respect to the problem and then added to the model. The proposed mathematical models are solved using the GAMS software and the values of efficiency are obtained. Findings: Results show that the model with environmental regulations has a lower efficiency value compared to the model without environmental regulation, indicating that applying environmental regulations on undesirable outputs, leads to losing some of desirable outputs and consequently some cost. The study involves 20 economic zones of China whose efficiency and cost loss are calculated. Discussion and Conclusion: The results show that in Guizhou and Guangdong regions, the efficiency is the same in both cases, indicating that these areas are on the edge of efficiency. The cost loss in these areas is zero. However, in areas such as Shaanxi and Liaoning, the difference is greater, indicating that for a long period of time, the economic development of these areas has been dependent on constant consumption of resources, which has caused reduced environmental quality. Manuscript profile -
Open Access Article
289 - Presenting a plan for buildings with solar panels by obtaining optimal angles for different months of the year to increase the amount of electricity production
parya Shafipouryourdshahi Hossein Soleimani Mehdi Soleymani GharagolBackground and Objective: Nowadays, the design, architecture and urban beautification by solar panels to absorb clean energy that leads to the reduction of greenhouse gases and environmental pollution have attracted the attention of architects and engineers. In this art MoreBackground and Objective: Nowadays, the design, architecture and urban beautification by solar panels to absorb clean energy that leads to the reduction of greenhouse gases and environmental pollution have attracted the attention of architects and engineers. In this article, due to the importance of the subject, a model is presented to obtain the most optimal angle of the panels to obtain the highest efficiency, so that the highest possible efficiency can be obtained by examining the different angles of placing the panels towards the sun in different components of the building.Material and Methodology: The current research is applied in terms of purpose and has a quantitative approach. In this article, a 2 kW power plant, separated from the electricity distribution network, located in Almanabad area of Urmia city, has been selected, and by entering its specifications in the PVsyst software and performing simulation, the information related to the produced energy for all months has been examined.Findings: The results show that The results showed that installing solar panels in different parts of the building with optimal angles creates the highest efficiency in all months. The comparison of the efficiency calculated in the optimal angles extracted from the software and the practical efficiency in the sample power distribution plant shows that the energy produced in both cases has a slight difference, which shows the confirmation of the simulations.Discussion and Conclusion: If the solar panels are set at the most optimal possible angle every month, they will have 5.8% more efficiency than the fixed state during a year. Therefore, in this research, various plans for urban design and beautification by solar panels are suggested, which in addition to maintaining efficiency, have a suitable design in terms of Iranian architecture. Manuscript profile -
Open Access Article
290 - Comparing and Analyzing the Impact of Financial Development Indicators on Carbon Dioxide Emission during the Iranian Recession and Boom
sara marashi aliabadi fatemeh zandi khalil saeidi maryam lashkarizadeh bijan safaviBackground and Objective: Protecting the environment and providing solutions to improve the quality of the environment has required countries to conduct studies to study the factors affecting the environment. One of these factors is the financial development of countrie MoreBackground and Objective: Protecting the environment and providing solutions to improve the quality of the environment has required countries to conduct studies to study the factors affecting the environment. One of these factors is the financial development of countries, because economists have considered financial development as an important factor influencing environmental preferences, which varies according to business cycles.Method: The present study uses Markov-Switching method and time series data over the period 1394-1349 (1970- 2015) the effects of financial development using depth financial index, financial development efficiency index (privy) and fundamental financial development index (bank) has studied the environment in the economic periods of the Iranian economy.Findings: In this regard, the economic periods of the Iranian economy are extracted using the Markov-Swichig model and then in the framework of econometric models using ARDL, the effects of recession and boom in the economy. The relationship with financial development on environmental quality has been examined.Discussion and Conclusion: The results show that liquidity (financial depth index), in conditions of economic boom and recession, has led to reduction of environmental pollution in the country. Private-sector facilities (financial development efficiency index) have a positive and significant impact on the environment in terms of boom conditions, but under recessionary conditions, private-sector facilities do not have a significant impact on environmental pollution. Finally, the creditworthiness of banks (the underlying indicator of financial development) increases pollution in times of boom, but in a recession has reduced environmental pollution. Manuscript profile -
Open Access Article
291 - Evaluation of energy efficiency in production process of biodiesel to conventional, ultrasonic and microwave methods
golmohammad khoobbakht Mahmoud KarimiBackground and Objective: Energy balance is a suitable tool for assessing the effects of production on environment with considering the amount of fossil fuels used and the amount of energy output. In the present study, input-output energy ratio and energy efficiency of MoreBackground and Objective: Energy balance is a suitable tool for assessing the effects of production on environment with considering the amount of fossil fuels used and the amount of energy output. In the present study, input-output energy ratio and energy efficiency of biodiesel production from waste cooking oil in three ways: conventional, using ultrasound irradiation and using microwave was investigated.Material and Methodology: In this study the energy inputs such as waste cooking oil, methanol, catalyst, electricity and energy for biodiesel production and output of energy, including biodiesel, glycerin, excess alcohol, water, soap, monoglycerides and diglyceride to estimate energy efficiency were calculated.Findings: The consumed energy for the methods of conventional, using ultrasound irradiation and using microwave were found 33.73, 35.75 and 34.39 MJ/L, respectively. The energy efficiency of biodiesel production in conventional, using ultrasound irradiation and using microwave were calculated 0.87, 0.80 and 0.77 respectively. Discussion and Conclusion: Among the mentioned methods of biodiesel production in the present study, using ultrasound irradiation in the process of biodiesel production was found as the best method in terms of input-output energy ratio and energy efficiency. The using ultrasound irradiation with the renewability index of 75% was also found as the most renewable process among the studied methods. Manuscript profile -
Open Access Article
292 - Increasing the efficiency of consuming cotton water using refined domestic sewage water under the conditions of applying different irrigation levels
Ali Neshat Farzin ForouzeshBackground and Objective: The water resources restriction introduces the water use efficiency in the agricultural section. In this study, an experiment based on the randomized complete block design with three replications was conducted in order to evaluate the effect of MoreBackground and Objective: The water resources restriction introduces the water use efficiency in the agricultural section. In this study, an experiment based on the randomized complete block design with three replications was conducted in order to evaluate the effect of refined sewage on the performance and performance elements of cotton in the city of Kerman. Material and Methodology: The experiment treatments were considered as three percent water requirement of plant as main factors: I1 =100, I2=85, and I3 =70 and two water quality as secondary factors: Q1 = well water and Q2 = domestic refined sewage. Findings: The results showed that the 15 percent deficit-irrigation in comparison with the full water requirement when the domestic refined sewage is used in providing the full water requirement of the plant caused 14.8 percent increase in the water use efficiency and economizing 2405m3 water in conditions and the crop performance and morphologic characteristics remain constant relatively.Discussion and Conclusion: Accordingly, the refined sewage can face the water deficit problem of the country and increase the efficiency of irrigation. Also, the 15 percent deficit irrigation in comparison with the full providing of water requirement is recommended in the cotton planting in the Kerman province in order to economize the water use. Manuscript profile -
Open Access Article
293 - Comparison of Technical and Environmental Efficiencies of Energy Industries in Isfahan Province - using Stochastic Nonparametric Envelopment of Data Approach
mansoureh jalayeri mohmmad hasan vakilpoor sadegh khalilian Hamed NajafiBackground and Objective: Sustainable development policies are expected to be designed in such a way that the production process and products are environmentally friendly and have the least negative side effects on the environment. The concern of developed countries the MoreBackground and Objective: Sustainable development policies are expected to be designed in such a way that the production process and products are environmentally friendly and have the least negative side effects on the environment. The concern of developed countries these days is to achieve sustainable development, and this is measured by the tools of environmental efficiency. Environmental efficiency is the most well-known and widely used valuation indicator in relation to environmental development. Material and Methods: this study evaluated the technical and environmental efficiencies of energy industries in Isfahan province and compared the results using the data envelopment analysis and non-parametric random envelopment analysis approach(StoNED). Financial data including annual sales, labor force, cost of raw materials and capital stock were collected from the audited financial statements of companies for the year ending 2017, and the amount of energy consumption and the type of energy consumed and the percentage of each one, collected and Completed using a questionnaire from the technical department of the factory. Findings: One of the assumptions of this study was that the average environmental efficiency was lower than the average technical efficiency and expected a significant difference between environmental and technical efficiency in each group of industries. The results showed that the average environmental efficiency was significantly lower than the average technical efficiency of firms. The results also showed that the average technical efficiency in selected energy industries in Isfahan province, using DEA method, was calculated 67.4% and using StoNED method was 75.7% and the average environmental efficiency in StoNED method was 52.1%. Thus, the average environmental efficiency of energy industries in Isfahan province was 23.6% lower than their average technical efficiency. Among the three groups studied, non-metallic industries such as cement and refractory brick factories had the highest average technical efficiency with 87.35%, while the average environmental efficiency of this group with 48.79% was lower than the other two groups. The average technical efficiency of metal industries was 81.23% and the average environmental efficiency of this group was 55.61% and the average technical efficiency of chemical and petrochemical industries was 55.9% and the average environmental efficiency of this group was 49.54%. Discussion and Conclusion: Due to the difference in the average environmental efficiency calculated for selected industries, it is suggested that environmental standards appropriate to each industry be developed to have a greater impact on environmental efficiency. Manuscript profile -
Open Access Article
294 - Evaluation of climate change and prediction of its impacts on efficiency and fuel consumption of thermal power plants in Iran in next decade
Andisheh Shiehbeigi Majid Abbaspour Mohammad Soltaniyeh Farhad Hosseinzadeh Zahra AbediSeveral studies yet have been conducted in the field of climate change in different parts of the worldin order to investigate the impact of meteorological parameters changes on the performance of energysector. In this study, the effect of climate change on the performan MoreSeveral studies yet have been conducted in the field of climate change in different parts of the worldin order to investigate the impact of meteorological parameters changes on the performance of energysector. In this study, the effect of climate change on the performance of energy generation sector atIran power plants in next decade has been investigated using the results of climate change calculationsin the country’s provinces obtained by downscaling through neural network. Calculations show thatthe efficiency of gas power plants averagely decreases by 0.6% per 1 oC temperature increase.Similarly, the efficiency of steam and combined cycle power plants averagely decreases by 0.5% and0.4% respectively. Considering the climate change consequences in Iran, the overall temperature willaveragely increase about 1.36 oC by the year 2025. Conduction a close investigation, the averagetemperature rise affecting the performance of power plants in the country - which would cause a dropin energy generation sector efficiency - was evaluated to be 1.13 oC. After making calculations andutilizing energy and environment software, it was found that the thermal power plants’ fuelconsumption will increase about 2.49%. The results revealed that the amount of carbon dioxideemission and social costs caused by emissions will increase by about 1.3% and 2%, respectively. Manuscript profile -
Open Access Article
295 - Evaluation of the implementation of energy efficiency measures in sugar industry and vegetable oil industry using SWOT and QSPM methods
Hasti Borgheipour Roxana MoogoueiBackground and objectives: Food industry in Iran is one of the major energy consuming industries. Sugar industry and vegetable oil industry are one of the main energy consuming industries in the food industry. Therefore, this study aims to investigate the implementation MoreBackground and objectives: Food industry in Iran is one of the major energy consuming industries. Sugar industry and vegetable oil industry are one of the main energy consuming industries in the food industry. Therefore, this study aims to investigate the implementation of energy efficiency improvement measures in sugar and vegetable oil industries. Method: In this study, it was attempted to apply SWOT analysis to develop strategies for the improvement of energy efficiency measures in the mentioned industries. This analysis includes the current effects (strengths and weaknesses) and the effects of future development (opportunities and threats). Also, the QSPM matrix was used to determine the relative attractiveness of the developed strategies. Findings: After examining the strengths, weaknesses, opportunities and threats associated with implementation of energy efficiency improvement measures in the studied industries, the results of analysis by IFE and EFE matrices showed that strengths are less than the weaknesses and the opportunities of development are more than the threats. Discussion and Conclusion: According to the results, development of strategies to improve the implementation of energy efficiency measures in the sugar and vegetable oil industries seems to be necessary. Among the strategies developed in this study, “establishing a proper system for policy making and implementation of policies, rules and regulations related to the energy sector and presenting a series of detailed rules for enforcing existing rules” are at the top of the strategyies Manuscript profile -
Open Access Article
296 - The Comparison of Electrical Charging Effect on Efficiency of Spray Tower Scrubber in Removal of Silica Particles
Majid Bayatian Abdolrahman Bahrami Rostam Golmohammadi Farshid Ghorbani ShahnaOne of the particle control methods is electrostatic charging with scrubbing to produce the charged wet scrubber (CWS). This technology has been used since. This system is practical where the scrubber can be used to remove the pollutants. In fact this system can increas MoreOne of the particle control methods is electrostatic charging with scrubbing to produce the charged wet scrubber (CWS). This technology has been used since. This system is practical where the scrubber can be used to remove the pollutants. In fact this system can increase the collecting efficiency and it is not a new technology to control the air pollution. Silica has a very high application in industry. The workers are exposed to these particles and these particles are so dangerous for man kind. Therefore according to ACGIH offer the local ventilation system on pilot has been designed and installed at the first step. Then with a -Volt direct current (DC) power, While the water was charging, electron were produced in the system. With measuring pressure loss by pitot tube and on isokenetic condition, prop diameter became millimeters. Sampling was based on tree method and samples were taken. The result of examination indicated that: In a specified water flow, charging droplet increased inhalation particles collecting efficiency, but this charging droplet isn effective to non inhalation particles collecting efficiency. Positive charging droplet is the most effective than negative charging droplet. Increasing water flow leads to increasing efficiency in collecting particles. Manuscript profile -
Open Access Article
297 - Investigating the Remediation of Soils Polluted with Heavy Metals as a Case Study
Ramin Salmasi Hamid Reza Pyrowan Abstract Background and Objective: Irrigation of the vegetables by polluted wastewater leads to accumulation of heavy metals in these plants. Heavy metals fixation in-situ using inorganic amendments is a method for reducing heavy metals absorption by plants. The More Abstract Background and Objective: Irrigation of the vegetables by polluted wastewater leads to accumulation of heavy metals in these plants. Heavy metals fixation in-situ using inorganic amendments is a method for reducing heavy metals absorption by plants. The goal of this study is to determine the efficiency of five types of amendments in heavy metals fixation in the waste-water-irrigated soils around Tabriz city. Method: For this purpose, solutions containing Cd, Pb, Cu, Ni, and Zn were added to 0.5 g of five amendments including calcite, hematite, zeolite, illite, and bentonite and to 10 soil samples taken from the nortwest of Tabriz city. After shaking for 2 hours, concentration of these five elements in the solutions filtered by atomic absorption instrument was determined. The mean percentages of these elements were compared and the best amendments were determined by Dunkan method. Findings: There were significant differences among the amendments in terms of heavy metals retention. Calcite had the highest Cd, Ni, and Zn absorption capacities; hematite had the highest Cu and Pb absorption capacities; and illite had the least absorption capacity for the five elemnts. Calcite, zeolite, bentonite, and hematite showed a significantly higher Cd, Ni, and Zn absorbtion capacity (5%) as compared to the 10 soil samples. The highest Pb absorption capacity by calcite and hematite (without significant differences) were observed. Discussion and Conclusion: Calcite, hematite, and zeolite had the highest absorption of Cu. However, the highest absorption of Cu belonged to hematite with a significant difference of 5% as compared to the other two amendments. Among the five amendments, calcite and hematite showed a similar results and led to a significant increase in absorption capacity (by 5%) for the five pollutants when added to the 10 studied soil samples. These ammendments led to the reduced absorption and accumulation of the mentioned elements in the plants cultivated in the agricultural lands around Tabriz city. Manuscript profile -
Open Access Article
298 - Ex-situ removal of crude oil from a contaminated soil using Sodium Dodecyl Sulfate (SDS)
Mehdi Hosnani Hossein Amani Mohammad Reza Sarmasti EmamiBackground Objective: Soil is the basic component of environment and the main source of food production and its contamination can cause pose many challenges for humans and other living organisms. Although many studies have been done separately to eliminate organic pollu MoreBackground Objective: Soil is the basic component of environment and the main source of food production and its contamination can cause pose many challenges for humans and other living organisms. Although many studies have been done separately to eliminate organic pollutants such as benzene and phenolic compounds from soil, a few studies yet have been done on the removal of crude oil which contains different types of hydrocarbon compounds from the soil. The aim of this study is to determine the removal of crude oil from the soil and provide a comprehensive model. Method: In this study, the ex-situ soil washing method with surface active agent has been used to remove crude oil from soil. For this purpose, first, the soil was artificially polluted with crude oil and then the effects of various parameters such as surfactant concentration in aqueous solutions, the initial concentration of contaminant in the soil, pH, volume of detergent solution, stirring rate, duration of the process and system temperature were evaluated. Findings: The results showed the optimal conditions for the removal of crude oil were concentration of surfactant in aqueous solution of 0.5% (w/w), initial concentration of crude oil of 5% (w/w), detergent solution pH=11, detergent solution volume of 50 ml, stirring rate of 200 rpm, experiment duration of 15 m and temperature of 45 °C. In optimal condition, about 96% of crude oil was removed from the soil. Discussion and Conclusion: According to the obtained results, surfactants can be used as a proper substance to remove oil contaminants from soil with a good efficiency. Manuscript profile -
Open Access Article
299 - Effect of concentration on efficiency and adsorption equilibrium time of lead from aqueous solution by rice husk adsorbent
Hasan Jamali Armandi Zaman Shamohamadi HeidariObjective: This study reviews the efficiency of absorption and equilibrium time Variations in concentrations were measured. Materials and methods: For this rice husk absorbent was used to absorb lead Kinetic adsorption experiments were carried out for estimation equilib MoreObjective: This study reviews the efficiency of absorption and equilibrium time Variations in concentrations were measured. Materials and methods: For this rice husk absorbent was used to absorb lead Kinetic adsorption experiments were carried out for estimation equilibrium time in varied concentrations. The results showed that in varied concentration amount the lead adsorbed per unit weight of adsorbent increased with increase contact time and process adsorption equilibrium reached at 60, 90, 105, 120, 90, 75 and 60 minutes for initial lead concentration 1, 10, 20, 50, 100, 200 and 500 mg/l, respectively. Results: Adsorption efficiency increased with decreasing solution concentration from 500 mg/l to 1 mg/l. However obtained maximum adsorption efficiency at concentration was 1 mg/l (%98). The experimental data were fitted using Ho &et al. and Lagergren kinetic models. Results showed that lead ions adsorption on rice husk followed adsorption model of Ho & et al. The experimental results were fitted to the Langmuir and Freundlich isotherm models. Results showed that experimental data fitted well the Freundlich model isotherm. Manuscript profile -
Open Access Article
300 - Comparative Study of Efficiency using of Cyclone, Spray Scrubber and integrated system of cyclone- spray scrubber to collect Silica Particles in stone Crushing Workshops
Mohsen Aliabadi Abdorrahman Bahrami Farideh Golbabae Farshid GhorbaniThe purpose of this research is efficiency determination of conventional cyclone with spray scrubber for removal of silica in stone crushing factories in Azaandarian area at Hamadan state. The iso-kinetic sampling of total dust was obtained down stream and upstream of c MoreThe purpose of this research is efficiency determination of conventional cyclone with spray scrubber for removal of silica in stone crushing factories in Azaandarian area at Hamadan state. The iso-kinetic sampling of total dust was obtained down stream and upstream of cyclone and scrubber in exhaust ventilation system base on EPA method No 5. The mass of all samples collected was determined by gravimetrically method. Also sampling of dust base of size distribution was performed by using of cascade centripetal. The results of this study showed that using traditional cyclone with scrubber has significant efficiency to remove particles from the Local exhaust ventilation (LEV) system. The mean of outlet concentration from stack in stone crushing type 1 (rate of free silica more than 95%), was 43-131 mgm-3 and in stone crushing type2 (rate of free silica more than 85%), was 64-12.7 mgm-3 that is less than standard permissible limit recommended by Iran Environmental protection Agency. The efficiency of cyclone to treat dust particles from LEV system was 80-97 percent and increases to 92-99 percent when cyclone with spray scrubber was used and therefore this integrated system is the most efficient for collecting silica dust emission in the air of factories. Manuscript profile -
Open Access Article
301 - Feasibility of remediation of diesel contaminated soils using surfactants by use of experimental pilot
Ehsan Salehian Ahmad Khodadadi Hossein GangidoustNowadays soil contamination by oil production due to leakage of fuel storage and transition hazards is an important environmental problem. Due to the additional hazard of transition to the human food chain, there is the possibility for pollution of ground water. Therefo MoreNowadays soil contamination by oil production due to leakage of fuel storage and transition hazards is an important environmental problem. Due to the additional hazard of transition to the human food chain, there is the possibility for pollution of ground water. Therefore in situ remediation of oil contaminated soil is very important. In this investigation the effective parameters on diesel soil remediation by soil washing using SDS surfactant were investigated. For modeling of contaminated land remediation the contaminated soil columns was used. Soil columns were contaminated with diesel in amount of 10000 ppm and 20000 ppm. In this study the effect of pH, surfactant concentration in washing solution and initial contamination amount were investigated. Results showed that in all states the quantity of remediation for acidic states is very low and efficiency of remediation when using only water is (1:3) of maximum amount. For soil with initial contamination amount of 10000 ppm the maximum efficiency is for surfactant in concentration of 0.3 and pH=11 and for soil with initial contamination amount of 20000 ppm the maximum efficiency is for surfactant in concentration of 0.1 and pH=11. By increasing the amount of surfactant concentration the permeability of soil decrease and in pH=11 the amount of permeability is maximum. With increasing initial contamination quantity, the velocity of increasing of remediation and permeability decreased. Consequently in the low level of contamination the effect of washing solution pH in soil remediation is greater in comparison with high levels of contamination. Manuscript profile -
Open Access Article
302 - The Effective Factors on Efficiency of Urban Park (Emphasizing on Its Function and Vitality) The case study: Ellarbaghi park of Urmia city
Hossein Hamidi Naemeh EsmaeelzadeganIntroduction: The citizenry need to do optional and social activities. These activities won't happenunless the demanded public space exists. Function and vitality are indicators of public space'sdesirability and efficiency. Planning and designing functional spaces for c MoreIntroduction: The citizenry need to do optional and social activities. These activities won't happenunless the demanded public space exists. Function and vitality are indicators of public space'sdesirability and efficiency. Planning and designing functional spaces for citizenry leads to fulfill a partof urban engineers and city managers responsibility creating spaces for citizenry activities. Park is oneof the mentioned spaces.Materials & Methods: This analytic and practical article is prepared for determination of effectivefactors on efficiency of urban park by emphasizing function and vitality. Documentary and bibliothecamethod is used to understand theoretical aspects of this observation and research. Catching citizenrypoints of views about Ellarbaghi park of Urmia city are made by questionnaires and "Factor Analysis"method and finally mixed them with Excel and Spss software. " Kendall's tau_b and Spearman's rho "correlation analysis" is also used and considered with hypothetical targets of research.Results: Function, tranquility, cleanness, perspective, appropriate management and collectivity ofpark users are effective factors on efficiency of urban park according to users’ points of view feedbackfrom research circumstances. Examining research hypothesis proves increasing citizenry acquiescencefrom applicability of various activities in the park as well as functionality of park increase urbanpark vitality. Manuscript profile -
Open Access Article
303 - Selection of Different Decision Variables in the Steam Section for the Exergoeconomic Analysis of a TCCGT Power Plant
ashkan abdalisosan maryam fani bejan farhaniyeIntroduction: The major target of this paper shows effect of selected decision variables in the steam system foroptimization of thermal combined cycle power plant.Material and method: Exergoeconomic, and other similar terms used to imply the combined thermodynamicand ec MoreIntroduction: The major target of this paper shows effect of selected decision variables in the steam system foroptimization of thermal combined cycle power plant.Material and method: Exergoeconomic, and other similar terms used to imply the combined thermodynamicand economic analysis of energy systems, which helps to increase the efficiency of a plant without jeopardizingits economic viability. The optimization accomplished using an iterative exergoeconomic. The design data of anexisting plant (Damavand combined cycle power plant in Tehran) used for the present analysis.Results and Diction: Two different objective functions proposed: one minimizes the total cost of production perunit of output, and the other maximizes the total exergetic efficiency. The analysis shows that the total cost ofproduction per unit of output is 2% lower and exergy efficiency is 4% higher with respect to the base case. Itdemonstrates that selected decision variables have a good result for the exergy analysis and cost effectiveness Manuscript profile -
Open Access Article
304 - Studying Impact of Increase in Water Usage Efficiency on Cropping Pattern Change with Emphasis on the Policy Makers and Environmental Objectives in Fars Province
Hamid Mohammadi Alireza Sargazi Valiollah SaraniBackground and Objective: Low water use efficiency, in addition to wasting scarce water resources, also increases water flow and environmental pollution. Analyzing the effect of increasing water use efficiency can be a useful tool for policy makers. This study aimed to MoreBackground and Objective: Low water use efficiency, in addition to wasting scarce water resources, also increases water flow and environmental pollution. Analyzing the effect of increasing water use efficiency can be a useful tool for policy makers. This study aimed to analyze the effects of increasing irrigation efficiency among farmers in Fars province. Method: In this study, multi-objective planning approach was used. Findings: Result showed that Impact of increased irrigation efficiency on cropping pattern and producer's objectives including gross margin and risk as well as its impact on environmental aspects including water and chemical fertilizer use was studied. Employment is also another objective. Regarding the multidimensional impacts, multi objective programming was applied. Discussion and Conclusion: Scenario analysis showed that increase in irrigation efficiency increases gross margin, chemical fertilizer use and diversity in cropping plan. However, it failed to incorporate in risk reduction. It was also found that increase in irrigation efficiency dose not increase employment. In general, the society will be benefited from improvement in irrigation efficiency if the increase of gross margin is considered as the main goal. Manuscript profile -
Open Access Article
305 - Eficient Energy Consumption Education in Primary Schools
Akramolmolok Lahijanian Shirin AbbasiBackground and Objective: The best solution to energy saving can be taught in schools. The educational activities change the awareness and attitudes of people and consumers towards energy use in the environment. Thus, education of efficient energy consumption in schools MoreBackground and Objective: The best solution to energy saving can be taught in schools. The educational activities change the awareness and attitudes of people and consumers towards energy use in the environment. Thus, education of efficient energy consumption in schools is important. The aim of this study is to investigate the role of efficient energy consumption education in primary schools in Tehran. Method:The random systematic and statistical sample of a school for girls (a large school class with 30 studends) in Tehran was selected. Using SPSS and Excel software, the paired t test was applied to measure the impact of training on students and analyze the data collected from educational activities of students concerning energy efficiency in the primary school. The hypotheses are considered as follows: 1-There is relationship between education of students in schools and their attitude towards energy consumption saving. 2-There is a relationship between parents education level and effectiveness of educational activities in schools. Results: A short questionnaire was given to the students before training in order to measure their attitude. Experimental pre-test and post-test were used to develop the hypothesis. To implement the pre-test and post-test, two groups of students as a control group were selected from Azadi school located in Region 4 of Tehran, Iran. Pearson coleralation was also applied in this regard.The findings in this study show that there are a strong relationship between variables and hypotheses. Conclusion:Also, the results show a significant correlation between students' knowledge and energy consumption. The hypotheses were approved at the end. Manuscript profile -
Open Access Article
306 - comparative study of dynamic performance of investment according to method (garch)and kalman filter
Javad Yousefi Brahman JAVAD ramezani Mehdi KhalilpourThe importance of investing for economic growth and development is enough to make it a strong incentive to reach development; one that investors care about is the information that comes from the coming part of the company.In spite of an efficient construction of the mar MoreThe importance of investing for economic growth and development is enough to make it a strong incentive to reach development; one that investors care about is the information that comes from the coming part of the company.In spite of an efficient construction of the market, it is possible to identify companies and projects. one of the main parts of the capital market is the stock exchange. and efficiency is the main and most important feature of the stock exchange. according to the significant effect of efficiency on the trade and investment level, the main purpose of this study is to compare the dynamic performance of investment according to the garch and kalman filter method.in this research , by using kalman filter , the beta - kalman filter is applied to the firms listed in tehran stock exchange ( tse ) . then beta values for these shares are estimated using garch method and the efficiency of these two methods is compared .tthe results are obtained and based on the mean square error of each method , it can be stated that kalman filter method outperforms the garch method and therefore outperforms the garch model . Manuscript profile -
Open Access Article
307 - Investigation of Weak Form Efficiency Hypothesis in Both High and Low Volatility Regimes of OPEC Crude Oil Market
mahmood mohammadi alamuti mohammad reza haddadi younes nademiCrude oil is a strategic commodity that has been one of the largest commodity market over the past 40 years in the world. The main players in the market, such as manufacturers, financial institutions and individual traders are interested in recognizing and benefiting fr MoreCrude oil is a strategic commodity that has been one of the largest commodity market over the past 40 years in the world. The main players in the market, such as manufacturers, financial institutions and individual traders are interested in recognizing and benefiting from some moving trends and practices in oil prices and returns. A market where prices always and fully reflect information is called efficient. Thus, there are 3 types of market efficiencies: weak form, semi strong form and strong form efficiency. In research, the weak form efficiency is often tested. In this study, the weak form efficiency of the OPEC crude oil market for daily data during the period from 4 January 2010 to 29 December 2017 by the two mode Markov regime switching GARCH model has been examined and the results of the estimation indicate a lack of efficiency in both high and low volatile regimes of the crude oil market. Manuscript profile -
Open Access Article
308 - The effect of forward-looking non-financial information (FNFI) on corporate investment efficiency & financing constraint
Allah Karam SalehiPrevious research has shown that the high disclosure of corporate financial information can increase the efficiency of the investment. In addition, the mechanism of financial information disclosure and investment efficiency is a kind of reduction of information asymmetr MorePrevious research has shown that the high disclosure of corporate financial information can increase the efficiency of the investment. In addition, the mechanism of financial information disclosure and investment efficiency is a kind of reduction of information asymmetry that prevents investment efficiency. Unlike financial information, which is mainly about the past performance of companies, non-financial information, in particular forward-looking non-financial information (FNFI), is about the future development of the company, which can provide information that is more relevant for decision makers. Therefore, the FNFI can reduce information asymmetry between companies and external sources of funding. The purpose of this study was to investigate the effect of forward-looking non-financial information on corporate investment efficiency & financing constraint in listed companies on Tehran Stock Exchange. To this porpuse, a sample of 150 companies during 2010-2016 was selected by systematic elimination sampling. The research method is library and correlation. Forward-looking non-financial information the study consists of seven non-financial indicators and the relationship between research variables by the regression model presented by Tan and Liu (2017) with the pooled data approach have been used. The results show that forward-looking non-financial information can reduce financing constraints and high disclosure quality will intensify the relationship between these two variables. Forward-looking non-financial information can also reduce the inefficiency of investment, and the high disclosure quality will intensify the relationship between these two variables, then alleviate the underinvestment effectively and meanwhile leavelittle opportunity for overinvestment. Manuscript profile -
Open Access Article
309 - Evaluation of Investor Reactions by Security Speeds of Price Adjustment towards the Intrinsic Values between different Industries in TSE
Mahdi Madanchi Zaj Behnaz Tolouei Kiarash Mehraniچگونگی واکنش سرمایه گذاران نسبت به اطلاعات محیط اقتصادی ، نقش کلیدی در تعیین میزان کارایی بازارسرمایهدارد. اگر این واکنش صحیح و سریع باشد، بازار سرمایه کارایی قوی دارد، در غیر این صورت، با هرگونه تاخیر و یا اختلال در واکنش سرمایه گذاران، از قدرت کارایی بازار کاسته می&r Moreچگونگی واکنش سرمایه گذاران نسبت به اطلاعات محیط اقتصادی ، نقش کلیدی در تعیین میزان کارایی بازارسرمایهدارد. اگر این واکنش صحیح و سریع باشد، بازار سرمایه کارایی قوی دارد، در غیر این صورت، با هرگونه تاخیر و یا اختلال در واکنش سرمایه گذاران، از قدرت کارایی بازار کاسته می‏شود. در این پژوهش بیش واکنشی سرمایه گذاران با استفاده از روش ارزیابی سرعت تعدیل قیمت سهام در رسیدن به ارزش ذاتی در بازه زمانی05/1/1392 الی 01/03/1396 آزمون شده است. در این راستا سرعت تعدیل شاخص قیمت سهام ده صنعت منتخب بورس (کانیهای ‏فلزی، محصولات کاغذی، محصولات چرمی، فراوردههای ‏نفتی، منسوجات، محصولات دارویی، لاستیک، فلزات اساسی، خودرو و محصولات شیمیایی) بر مبنای چهار رویکرد مدل تعدیل جزئی آمیهود و مندلسون (1987)، داموداران (1993)، نسبتهای اتو کوواریانس و فرآیندهای ARMA تئوبالد و یالوپ (2001، 2002) محاسبه شد. بر اساس برآوردگر نسبت اتو-کوواریانس و رویکرد آمیهود و مندلسون (1987) کمواکنشی در هیچ از صنایع منتخب مشاهده شد. روش ARMAنیز نشان داد در تمامی صنایع بجز صنعت خودرو وجود پدیده کمواکنشی مشاهده شده و در صنعت خودرو بیش واکنشی سرمایهگذاران وجود دارد. بر اساس روش داموداران همه 10 صنعت منتخب سرمایهگذاران بیش واکنشی داشتند. که بر اساس مطالعات مختلف نتایج روش داموداران از قابلیت اعتماد پایینی برخودار است. Manuscript profile -
Open Access Article
310 - Analysis of Criteria for Improving the Efficiency of Cloud Computing Services Using DEMATEL Technique with Business Survival Approach
Nadi Alizadeh nazanin pilevariCloud computing is one of the technologies of providing services and services that has a high potential for organizations that, in addition to reducing the cost of information technology, improves the way of attracting and retaining customers. The main objective of this MoreCloud computing is one of the technologies of providing services and services that has a high potential for organizations that, in addition to reducing the cost of information technology, improves the way of attracting and retaining customers. The main objective of this research is to analyze the criteria for improving efficiency in Cloud computing services. The statistical population of the study is the experts in the field of information technology in universities. The tools used were interviews and questionnaires. A total of 25 questionnaires were distributed among experts. Finally, 21 questionnaires were gathered. Data were analyzed by the DEMATEL method.By analyzing the data, it was found that among the six criteria introduced, the economic factors criterion with the highest total line had the most impact on other components of the efficiency improvement of cloud computing systems and organizational factors with the highest coefficient The weight is among the other criteria and has the most impact on the whole system.As a result, the use of cloud computing technologies to reduce costs and increase efficiency in the optimal use of hardware issues within the organization has attracted the attention of managers. Cloud computing management software stores storage hardware resources and improves the efficiency of the network and improves the power consumption by employing them in an accurate and timely manner. Manuscript profile -
Open Access Article
311 - The moderating effect of social responsibility on the relationship between investment and performance with emphasis on factors based on agency theory
farhad fazilat hashem valipour shadi shahverdianiThe main purpose of this research is to investigate the effect of social responsibility on the relationship between investment and performance of firms and the managerial compensation incentives, stakeholder engagement and government ownership as factors based on the ag MoreThe main purpose of this research is to investigate the effect of social responsibility on the relationship between investment and performance of firms and the managerial compensation incentives, stakeholder engagement and government ownership as factors based on the agency theory. The research method is quasi-experimental and the number of 127 firms in Iran Stock Exchange for the period of 1390 to 1396 were selected as the sample of study. Regression analysis based on panel data was used to test the hypotheses. Research results show that social responsibility reduces the sensitivity of investment to performance. Also, the effect of this variable on the sensitivity of investment to performance is stronger for firms with weak managerial compensation incentives and higher stakeholder engagement, but weaker for government companies. Manuscript profile -
Open Access Article
312 - The effectiveness test of customer concentration on cash holdings adjustment speed in listed companies in Tehran Stock Exchange
Mohammad Amin RastegarAccording to the managerial entrenchment hypothesis, uncertainty about government policies (such as taxation and labor laws) is expected to increase significantly during the years of national elections in companies with a larger workforce, which ultimately affects ineff MoreAccording to the managerial entrenchment hypothesis, uncertainty about government policies (such as taxation and labor laws) is expected to increase significantly during the years of national elections in companies with a larger workforce, which ultimately affects inefficiency. Labor investment will be. The purpose of this study is to investigate the effect of political uncertainty on the labor investment inefficiency in firms listed on the Tehran Stock Exchange. In this regard, 140 companies (980 year-company observation) listed on the Tehran Stock Exchange during the period 2012 to 2018 have been reviewed. In order to test the research hypotheses, the multiple linear regression model was used using panel data. The results of this study show that during the years of national elections, the labor investment inefficiency has increased. In other words, there is a significant negative relationship between political uncertainty and labor investment inefficiency. These results indicate the importance and effectiveness of political uncertainty in labor investment. Manuscript profile -
Open Access Article
313 - Testing the Effectiveness of Capital Market Efficiency through Investment Mediator Variables on Earnings Management Quality of Companies Listed in Iranian Stock Exchange
Akabar Bagheri ALI RAMEZANIonsidering that the purpose of the stock exchange is to attract small funds and allocate them to the economy, especially production, so it is necessary to try as much as possible to make it as efficient as possible. The higher the cost-effectiveness of the capital marke Moreonsidering that the purpose of the stock exchange is to attract small funds and allocate them to the economy, especially production, so it is necessary to try as much as possible to make it as efficient as possible. The higher the cost-effectiveness of the capital market, the more investors' confidence in stock will increase, and their willingness to invest will increase. So if this confidence and trust is created in the investors, it will increase the possibility of attracting small savings and investments through stock exchange and injection. For this purpose, in this research, we will try firstly to test the efficiency of the Tehran Stock Exchange, and in the next step, suggestions are made to move from inefficiency towards the better functioning of the market to improve the quality of profit. Therefore, in this research, the role of stock market performance in the quality of companies' profits in Tehran Stock Exchange has been investigated. In this study, a sample of 172 companies has been used to measure the company's earnings quality. Multiple regression analysis showed that there is a negative and significant relationship between stock market stock performance and corporate earnings quality. Also, the other result showed that the amount of investment in the relationship between the performance of the stock market and the quality of corporate profits is ineffective. Manuscript profile -
Open Access Article
314 - Provide hybrid model for forecasting financial crises based on free cash flow :evidence from the capital market
ayat tamrinia mahdi Moradzadeh fard REZA Nazari Bahman BanimahdAbstract: Due to the significant socio-economic and political consequences that financial crises impose on different segments of society, financial crises of reporting units have always been one of the most important issues for creditors, shareholders and stakeholders i MoreAbstract: Due to the significant socio-economic and political consequences that financial crises impose on different segments of society, financial crises of reporting units have always been one of the most important issues for creditors, shareholders and stakeholders in general. The purpose of this study is to provide a combined model based on It is based on cash and free flows to predict financial crises in the Iranian capital market. The model is based on selected financial ratios based on free cash flows and by adding efficiency criteria. Research data using samples including 1560 views from 260 companies During the years 2007 to 2017These data are calculated to predict financial crises from Logit regression and to compare the resolution of the hybrid model with other common models of the rock curve. The research findings show that the hybrid model is based on flows. Free cash flow identifies the financial crises of companies in the Iranian capital market properly and has a higher accuracy compared to the following powerful models. According to the results of this study, it can be said that in the Iranian capital market, models based on free cash flows Capturing the structure of Iran's capital market and inflationary conditions has more explanatory power in relation to forecasting financial crises, and company managers and investors and corporate executives and investors in their economic decisions can pay more attention to such hybrid models. Manuscript profile -
Open Access Article
315 - Validation of Investment Efficiency Models Based on Agency Theory, Information Asymmetry, Managerial Entrenchment and Firm value maximization
Vahid Taghizadeh Khanqah younes badavar nahandi Aliasgar Mottagi Houshang TaghizadehIn a complete market in which information asymmetry does not exist between managers and external investors, firms can optimally invest in profitable projects. However, when information asymmetry exists, firms may be confronted to face financing constraints and cash surp MoreIn a complete market in which information asymmetry does not exist between managers and external investors, firms can optimally invest in profitable projects. However, when information asymmetry exists, firms may be confronted to face financing constraints and cash surplus which prevent them from undertaking profitable projects, resulting in an under and over investment. Therefore, in order to achieve an optimal investment efficiency model and detection of over and under investment, the empirical test of investment efficiency models examined in Tehran Stock Exchange. In this research, different models of investment efficiency extract and examined from different economic environments and compared with the native model presented, in order to explain their explanatory power. For this purpose, the origin and economic implications of investment efficiency are used to validate the models. A model is convenient when that consistent with financial and accounting theories. The financial reporting quality, free cash flow, financial constraints, economic value added, and firm value are issues that are tested in relation to investment efficiency models. For this purpose, 180 companies are used for the period of 2007-2017. The findings showed that free cash flows and financial constraints has a positive effect on over and under investment. The findings also suggested that the investment efficiency was positively affected by the economic value added and firm value, but this effect was not confirmed through all investment efficiency models. The results showed that the test of all hypotheses was confirmed based on native model of investment efficiency. Manuscript profile -
Open Access Article
316 - Portfolio Performance Assessment Based on a Mixed (Economic-Accounting) Approach and Data Envelopment Analysis (DEA)
Fatemeh Dadbeh Maryam khalili araghiThe performance evaluation of optimal portfolio selection as an important matter for all investors involves creating portfolios that maximize investor utility. Determining an appropriate approach to performance evaluation of portfolio efficiency is one of the most impor MoreThe performance evaluation of optimal portfolio selection as an important matter for all investors involves creating portfolios that maximize investor utility. Determining an appropriate approach to performance evaluation of portfolio efficiency is one of the most important current issues in the field of investment management. Several portfolio assessment techniques have always been concerned by researchers and financial analysts. Therefore, in selecting the evaluation criteria, one cannot select an investment project solely on the basis of its high returns. Portfolio performance evaluation models presented by focusing upon both risk and return are not based on the fundamental approach to financial elements. Therefore, this study addresses the portfolio performance assessment based on a mixed (economic-accounting) approach and using data envelopment analysis (DEA) as the multipurpose modeling. The results show that the accounting approach is more efficient than the economic approach and the combined approach. Manuscript profile -
Open Access Article
317 - Appraising the Relationship between Age and Total Assets of Mutual Funds and their Efficiency by Using Data Envelopment Analysis Approach (DEA)
Alireza badkoobeh Hezaveh ali Esmaeilzadeh MaghariMutual funds are professional finance institutions which have invested in securities, by investors’ payments, while enjoying the professional management as well as decrease in non-systemic risk. On the other hand, investors require some approaches to evaluate the MoreMutual funds are professional finance institutions which have invested in securities, by investors’ payments, while enjoying the professional management as well as decrease in non-systemic risk. On the other hand, investors require some approaches to evaluate the performance of mutual funds including, data envelopment analysis as a multi-purpose decision making method. Efficient and inefficient companies may be specified by this method, as well as a reference to achieve the efficiency limit for inefficient companies. This research aims to evaluate efficiency of mutual funds by the method of data envelopment analysis. The interval is begun from 2018 until the end of the spring of 2020 and all stock mutual funds form the statistical society. Also 35 mutual funds is a statistical sample. The results show meaningful correlation between obtained efficiency by the method of data envelopment analysis and the real output of mutual funds. So data envelopment analysis is a suitable method to evaluate efficiency of mutual funds. The results indicate that increase in total assets of mutual funds enhance their efficiency. But the age of mutual funds does not affect their efficiency. Manuscript profile -
Open Access Article
318 - Investigating the Role of Financing by Narcissistic CEOs in the Investment Efficiency of Companies Listed on the Tehran Stock Exchange
Mohammad Janalizadeh majid ashrafi Maryam Bokharaeian Khorasani Gemadverdi Gorganli DojiThe present study aims to investigate the role of financing by narcissistic CEOs in the investment efficiency of companies listed on the Tehran Stock Exchange. The statistical population of the study was all companies listed on the Tehran Stock Exchange between 1391 and MoreThe present study aims to investigate the role of financing by narcissistic CEOs in the investment efficiency of companies listed on the Tehran Stock Exchange. The statistical population of the study was all companies listed on the Tehran Stock Exchange between 1391 and 1398, of which 143 companies were examined as a statistical sample of the study. The results of the analysis of research hypotheses using combined regression and logistic regression showed that the narcissism of the CEO does not have a significant effect on the company's over-investment. The narcissism of the CEO does not have a significant effect on the company's under-investment. The narcissism of the CEO has a negative and significant effect on the investment efficiency of the company. Financing by narcissistic CEOs does not have a significant effect on the company's over-investment. Financing by narcissistic CEOs does not have a significant effect on the company's under-investment. Financing by narcissistic CEOs has a negative and significant effect on the investment efficiency of the company. Manuscript profile -
Open Access Article
319 - Assessment the Impact of Inefficient Investment Decisions on the Relationship between Conservatism and New Investment
Mohammad Hassani Saeid Asadian FeyliThe purpose of this research is investigation the relationship between conservatism and new investment; In addition, this research assessed the impact of investment inefficiency on the relationship between conservatism and new investment. Conservatism is measured based MoreThe purpose of this research is investigation the relationship between conservatism and new investment; In addition, this research assessed the impact of investment inefficiency on the relationship between conservatism and new investment. Conservatism is measured based on the pattern presented by Givoly and Hayn (2000). Also, over investment is considered as a proxy of investment inefficiency which is measured based on the model proposed by Biddle et al (2009). So, research population includes 216 firms listed in Tehran Securities & Exchange over the period 2012-2017 which selected through filtering method. The hypotheses analyzed through multivariable regression models based on panel data and fixed effect method. The results showed that conservatism had significant and negative impact on new investment. Also, over investment as a proxy of investment inefficiency had significant and positive impact on new investment. However, conservatism had no significant impact on the relationship between prior over investment and new investment. Manuscript profile -
Open Access Article
320 - Liquidity and Information Efficiency in Cryptocurrencies Market
Mohammad SalehifarIn this paper, we evaluate the behavior of return, liquidity, and information efficiency in cryptocurrencis market. Cryptocurrencis are a kind of virtual currencies which cryptography technology is a basic element in their designing. They are often managed in an undistr MoreIn this paper, we evaluate the behavior of return, liquidity, and information efficiency in cryptocurrencis market. Cryptocurrencis are a kind of virtual currencies which cryptography technology is a basic element in their designing. They are often managed in an undistributed manner. The sample consists of 13 cryptocurrencies which were traded during 3 years (11/1/2015 until 11/1/2018) consistently. We apply Dickey-Fuller test, Ljung-Box autocorrelation parametric test, Fama-French autocorrelation test, Run and Hurst non-parametric tests to explore momentum and long-run memory in cryptocurrencis market. Findings show that cryptocurrencis return has an unpredictable behavior in markets which are more liquid. Indeed, liquidity has a direct relationship with information efficiency in cryptocurrencis market. Totally, the more liquid cryptocurrencis markets are, the less return predictability will be happened and cryptocurrencis return time series will move to a random walk. Therefore, the efficient market hypothesis will be improved. Manuscript profile -
Open Access Article
321 - Improve Investment Efficiency Based on Cognitive Behavioral Biases CEO by Gray Vikor Analysis
Mohammed feridoni nader rezaei askar pakmaram Rasoul ABDIAbstractSustainable growth and development of capital markets has always been considered as one of the strategies of countries for economic stability. But the existence of behavioral bias in decision making in the capital market has made the market especially less effec MoreAbstractSustainable growth and development of capital markets has always been considered as one of the strategies of countries for economic stability. But the existence of behavioral bias in decision making in the capital market has made the market especially less effective in developing countries, and problems such as inefficient investment in the macro level and the presence of financial constraints on the micro level in the competitive market. The Purpose of this research is Improve Investment Efficiency Based on Cognitive Behavioral Biases Managers by Rough Theory Analysis. The methodology of this research was a mix method of which, in the first step, in order to identify the components of investment efficiency, financing constraints and behavioral bias of managers, a further analysis was carried out with the participation of 18 university specialists. Then through the Delphi analysis identified factors were identified from a total of 38 criteria's, 21 criteria's were finalized. In Rough's analysis, the identified components of managerial behavioral bias on investment performance indicators were examined and it was found that recognizing managerial behavioral bias can increase the effectiveness of investment efficiency. Manuscript profile -
Open Access Article
322 - Social capital and investment efficiency
Esmail Ebrahimi Farzin Rezaei Salahedin GhaderiSocial capital as a socio-behavioral factor can keep the problem of excessive costs of the company at a desirable level. Therefore, when a company's social capital is at a high level, managers show less opportunistic behaviors and strive for more cooperation and interac MoreSocial capital as a socio-behavioral factor can keep the problem of excessive costs of the company at a desirable level. Therefore, when a company's social capital is at a high level, managers show less opportunistic behaviors and strive for more cooperation and interaction in the company. Therefore, reducing the opportunistic behaviors of managers through social capital can affect the adhesion of dividends and increase the investment efficiency of the company. Social capital is one of the important aspects of social relations and the basis for social cooperation and participation among members of society. Managers of companies with a high level of social capital try to maintain investments with a positive net present value in order to maintain the value of the company. Therefore, based on this argument, the present study investigates the relationship between social capital and investment efficiency. For this purpose, Levy and Lee (2015) questionnaire was used to measure social capital. The hypotheses were tested using the structural equation modeling method based on the information of 83 companies listed on the Tehran Stock Exchange in 2019. The findings of the first hypothesis of the research indicate that social capital increases the investment efficiency of the company. Manuscript profile -
Open Access Article
323 - Investigating and measuring the factors affecting the efficiency indicators of technical analysis in the Iranian stock market;Generalized Torque Model (GMM) approach
hamed tavakolipour faegh ahmadi bihan abidini Mohammad Hossein RanjbarAbstractUndoubtedly, profit forecasting, which may be done technically or fundamentally, will be applicable when it is highly efficient. The required data were collected using the sampling method for 323 companies listed on the Tehran Stock Exchange on a monthly basis d MoreAbstractUndoubtedly, profit forecasting, which may be done technically or fundamentally, will be applicable when it is highly efficient. The required data were collected using the sampling method for 323 companies listed on the Tehran Stock Exchange on a monthly basis during the period 2013-2019. In addition, static software and dynamic panel data model (GMM) were used to analyze the data. The results showed that company size and corporate governance indicators did not have a significant effect on technical analysis performance indicators. In addition, financial leverage does not have a significant effect on RSI and MACD and has a significant inverse effect on MA1 and MA2. On the other hand, return on assets has a significant inverse effect on RSI and has a significant positive effect on MA1, MA2 and MACD. Also, recession and economic prosperity do not have a significant effect on RSI and MACD and have a significant inverse effect on MA1 and MA2. In addition, inflation fluctuations, exchange rate fluctuations and systemic risk have a significant positive effect on RSI and have a significant inverse effect on MA1, MA2 and MACD. Then, the accuracy of predicting the performance indicators of technical analysis in the form of three scenarios was assessed. The results showed that the accuracy of predicting the performance indicators of technical analysis in the Iranian stock market is appropriate for the studied scenarios. Manuscript profile -
Open Access Article
324 - Application of artificial intelligence algorithm in predicting investment efficiency Emphasizing the role of risk management criteria
maryam khaleghi zadeh dehkordi fatemeh sarraf Ali Najafi MoghadamInvestment efficiency is achieved when the company invests only in all projects with a positive net present value. Of course, this scenario works if the market is complete and there are no incomplete market issues such as incorrect selection and agency costs. Do not hav MoreInvestment efficiency is achieved when the company invests only in all projects with a positive net present value. Of course, this scenario works if the market is complete and there are no incomplete market issues such as incorrect selection and agency costs. Do not haveThe purpose of this research is to apply artificial intelligence algorithm in predicting investment efficiency by emphasizing the role of risk management criteria. For this purpose, the financial information of 139 companies between 2010 and 2019 was used using genetic artificial intelligence and neural network methods. The results indicate the effect of risk management criteria on investment efficiency and also the results showed that the neural network artificial intelligence method has higher power than the genetic artificial intelligence method to predict the investment efficiency of companies listed on the Tehran Stock Exchange. Manuscript profile -
Open Access Article
325 - Evaluating the Long-Term Performance of Commercial Banks Based on the Sustainable Competitive Advantage Approach with Emphasis on the Role of Management Efficiency: An Approach Based on Comparing Public and Private Iranian Banks
hamid sadjadi mohsen hamidian ali esmaelzadehThe performance of the organization and ultimately its value is improved through activities that increase the critical factors of success. Managers with higher efficiency seem to seek to increase high performance and then maintain a stable competitive advantage among th MoreThe performance of the organization and ultimately its value is improved through activities that increase the critical factors of success. Managers with higher efficiency seem to seek to increase high performance and then maintain a stable competitive advantage among their competitors, and it is expected that management efficiency can affect the relationship between long-term bank performance and sustainable competitive advantage. Therefore, based on this argument, the purpose of this study is to provide a model for evaluating the long-term performance of commercial banks based on the approach of sustainable competitive advantage with emphasis on the role of management efficiency. The research hypothesis was tested using a sample consisting of 23 banks listed on the Tehran Stock Exchange during the years 1390 to 1397 and using a multivariate regression model. The obtained data were analyzed using Ives 10 software. Findings indicate that the identified factors evaluating the long-term performance of commercial banks such as financial performance (economic value added) and profitability indicators (Kyoto, return on assets and return on equity) affect the bank's sustainable competitive advantage. Also, management efficiency as a moderating role affects the relationship between long-term performance appraisal of commercial banks (economic value added, Kyoto, asset returns and equity returns) and the bank's sustainable competitive advantage. On the other hand, due to the fact that the rate of coefficients obtained from private banks is higher than state-owned banks, so in order to increase management efficiency, it is recommended that banks move towards privatization. Manuscript profile -
Open Access Article
326 - Investigating the Relationship between Political Influence and Investment Efficiency of Listed Companies in Tehran Stock Exchange
zahra hasanikolavani gholamreza mahfoozi kyhan azadiFrom the perspective of political economy, the major shareholders and executives associated with the political power centers can influence the performance of their respective companies. Undoubtedly, a large part of the Iranian economy is under the influence of a governm MoreFrom the perspective of political economy, the major shareholders and executives associated with the political power centers can influence the performance of their respective companies. Undoubtedly, a large part of the Iranian economy is under the influence of a government controlled by various political groups. And to a certain extent they have different political and economic ideas. This study seeks to investigate the possible relationship between managers' political influence and government's political support as political factors on the investment efficiency of listed companies in Tehran Stock Exchange. The sample consisted of 104 companies listed in Tehran Stock Exchange during the years 2008-2017 that were selected by systematic elimination method. Ives software was used to test the research hypotheses. The results indicate that there is a positive and significant relationship between managers' political influence and performance evaluation, but there is no significant relationship between government political support and investment efficiency. Manuscript profile -
Open Access Article
327 - The Impact of Ownership Structure and Strategy Change on Stock Price Fluctuations with Emphasis on the Modulatory Effectiveness of Investment Information and Investment Returns
Mohamad ali Sadeghi lafmejani javad ramezaniThis study aimed to explain the effect of adjusting information productivity and return on investment on ownership structure and strategy change with stock price volatility in Tehran Stock Exchange.In this study, the hypotheses were tested using multivariate linear regr MoreThis study aimed to explain the effect of adjusting information productivity and return on investment on ownership structure and strategy change with stock price volatility in Tehran Stock Exchange.In this study, the hypotheses were tested using multivariate linear regression model and econometric models.The results indicate that optimization of the property structure and the additional returns resulting from the use of acceleration and reversal strategies will have a positive and direct impact on stock price fluctuations. Increasing information efficiency (total return on a daily basis) will reduce variables related to ownership structure and stock price fluctuations, whereas the type of investment will not affect the relationship. Also, despite the unexpected effect that the surplus of strategy change will have on stock price fluctuations, information efficiency and investment returns will not be affected by this relationship. Manuscript profile -
Open Access Article
328 - Investigating the mediating role of growth opportunities on the relationship between managers' overconfidence and investment efficiency
Afshin shalchi Zadollah Fathi Hossein ShafieiAbstractThe purpose of this study is to investigate the mediating role of growth opportunities on the relationship between managers' overconfidence and investment efficiency. Given that investing is the process of making a decision that managers use to identify projects MoreAbstractThe purpose of this study is to investigate the mediating role of growth opportunities on the relationship between managers' overconfidence and investment efficiency. Given that investing is the process of making a decision that managers use to identify projects that add value to the company, managers' mental states, including those of managers' overconfidence, play a significant role in selecting investment projects. On the other hand, managers' over-confident influence on investment efficiency can be indirectly influenced by growth opportunities. This research is causal, post-event and applied. To conduct this research, a sample of 156 companies listed in Tehran Stock Exchange during the period 2009-2018 was selected. Based on the combined data method and multivariate linear logistic regression analysis, the research findings showed that managers' overconfidence leads to increase / decrease of over / under investment. Also, according to Baron & Kenny (1986), managers' trust is influenced not only directly but also indirectly by growth opportunities. Manuscript profile -
Open Access Article
329 - Investigating the Relation between Political Management and Managerial efficiency on Tax aggressiveness reporting in Iran capital market
ali Molaiy Eal Zoleh kaveh parandinCompanies can reduce their taxes or delay paying them through tax aggressive reporting. Various factors, including Political Management and Managerial efficiency, affect the tax reporting aggressiveness. In this regard, the present study aims to examine the effect of Po MoreCompanies can reduce their taxes or delay paying them through tax aggressive reporting. Various factors, including Political Management and Managerial efficiency, affect the tax reporting aggressiveness. In this regard, the present study aims to examine the effect of Political Management and Managerial efficiency for tax aggressive reporting as well as moderating effect of Political Management on the relationship between Managerial efficiency and tax aggressive reporting. In order to test the research hypotheses, 123 companies listed in Tehran Stock Exchange during 2009-2017 were investigated. In order to measure the Political Management, two models of Long - term debts and State - dependent board of directors is used; to measure Managerial efficiency, the Demerjian's model is used; to measure the tax reporting aggressiveness, the difference between declaration and diagnosis tax is used. In this research, correlation and multivariate regression methods with combined data model and generalized least squares estimation method are used. The results show that Political Management has a positive and significant relationship with tax aggressive reporting, but the Managerial efficiency has a negative and significant relationship with it. However, Political Management do not weaken the impact of Managerial efficiency to Tax reporting aggressiveness. Manuscript profile -
Open Access Article
330 - The role of management's expected profit on the investment efficiency in stock market
Yazdan Gudarzi Farahani leila baratiThe purpose of this article was the role of management's expected profit on the investment efficiency of companies listed on the Tehran Stock Exchange. The literature shows that with increasing accuracy of expected profits, investment efficiency increases and abnormal i MoreThe purpose of this article was the role of management's expected profit on the investment efficiency of companies listed on the Tehran Stock Exchange. The literature shows that with increasing accuracy of expected profits, investment efficiency increases and abnormal investment decreases. The present study was reviewed among 457 companies listed on the Tehran Stock Exchange in the period 2013-2021. In order to analyze the relationship between variables, the panel data method has been used. The results of this study showed how the expected profit of management, which is estimated under the direction of management expectations, affects investment efficiency. The effect of expected profits on abnormal investment through underinvestment and overinvestment was also examined. The results showed that the expected profit of management had a significant effect on under-investment and over-investment variable. Manuscript profile -
Open Access Article
331 - Social capital, Sticky Dividend and investment efficiency
Esmail Ebrahimi Farzin Rezaei Salahedin GhaderiSocial capital as a socio-behavioral factor can keep the problem of excessive costs of the company at a desirable level. Therefore, when a company's social capital is at a high level, managers show less opportunistic behaviors and strive for more cooperation and interac MoreSocial capital as a socio-behavioral factor can keep the problem of excessive costs of the company at a desirable level. Therefore, when a company's social capital is at a high level, managers show less opportunistic behaviors and strive for more cooperation and interaction in the company. Therefore, reducing the opportunistic behaviors of managers through social capital can affect the adhesion of dividends and increase the investment efficiency of the company. Therefore, based on this argument, the present study examines the relationship between social capital, dividend stickiness and investment efficiency. For this purpose, Levy and Lee (2015) questionnaire was used to measure social capital. The hypotheses were tested using the structural equation modeling method based on the information of 83 companies listed on the Tehran Stock Exchange in 2019. The findings of the first hypothesis of the research indicate that social capital increases the investment efficiency of the company. Also, the high level of social capital in companies causes dividend stickiness. Manuscript profile -
Open Access Article
332 - Presenting an Investment Efficiency Model Based on Managers' Behavioral Biases with Emphasis on the Role of Investment Sentiment
khadijeh Rabiee Hassan Fotouhi FoshtomiToday, managers' behavioral biases play a very important role in investment and investment sentiment. Behavioral methods of managers can shape the efficiency of investment in companies. Based on this, the main goal of the current research is to provide an investment eff MoreToday, managers' behavioral biases play a very important role in investment and investment sentiment. Behavioral methods of managers can shape the efficiency of investment in companies. Based on this, the main goal of the current research is to provide an investment efficiency model based on the behavioral biases of managers, emphasizing the role of investment sentiment in companies listed on the Tehran Stock Exchange. The statistical population of the research is all the companies admitted to the Tehran Stock Exchange. As a sample, 143 companies were examined in the period from 2012 to 2019. Hypotheses testing was done using the combined data regression method and panel data in EViews10 software. The results obtained at the 95% confidence level using the generalized least squares method showed that overconfidence bias has a negative and significant effect on investment efficiency. Also, investment sentiment have a moderating and negative role in the relationship between overconfidence and investment efficiency. But the biases myopia, optimism and agency intuition variables have no significant effect on investment efficiency. Also, investment sentiment do not play a moderating role in the relationship between biases myopia, optimism and agency intuition with investment efficiency. Based on the results, it can be said that based on behavioral financial principles, the increase in investors' desire to invest in a company increases the overconfidence of managers, and they invest based on their feelings, which ultimately reduces investment efficiency. Manuscript profile -
Open Access Article
333 - Combining Multi-Criteria Decision Making and Mathematical Optimization as a Basis for Capital Decision Making
Ali Sepehri Hossein Jabbari Hassan Ghodrati Ghazaani Hossein PanahianThe present study was conducted with the aim of combining multi-criteria decision making approach and mathematical optimization in evaluating financial efficiency and refining the affecting factors. In this research, based on a quantitative analysis, a distinction is ma MoreThe present study was conducted with the aim of combining multi-criteria decision making approach and mathematical optimization in evaluating financial efficiency and refining the affecting factors. In this research, based on a quantitative analysis, a distinction is made between capital decision supporting and decision-making, and data envelopment analysis has been used in selecting the investment option. The type of research has been done in terms of theoretical-applied purpose and with survey research design. Using the fuzzy Dematel method, the most effective factors of financial efficiency was: 1) Current ratio, 2) Liquidity of assets, 3) Ownership ratio, 4) Operating cost rate, 5) Firm size, 6) Operating return on assets, 7) Net return Assets, 8) return on equity, 9) current asset turnover, 10) average monthly return, 11) daily price to earnings per share, 12) earnings growth. The statistical population of the research in the refinement of inputs and outputs includes professors and experts and, 183 selected companies of Tehran Stock Exchange in the selection of the optimal capital combination. The evaluation of financial efficiency led to the identification of 42 companies as justified investment options. Manuscript profile -
Open Access Article
334 - Investigating the Impact of Political Communication on the Relationship between Investment Performance and Cost of Capital
Hamideh Jafari yazdi Alireza Heidarzadeh Hanzaeiin this study, the effect of political relations on the relationship between investment efficiency and capital cost of the company was examined and tested. In order to investigate this issue, three hypotheses have been designed. To test these hypotheses, multivariate re Morein this study, the effect of political relations on the relationship between investment efficiency and capital cost of the company was examined and tested. In order to investigate this issue, three hypotheses have been designed. To test these hypotheses, multivariate regression models based on composite data and fixed effects method have been used. The statistical population of the study according to the screening pattern and systematic elimination method includes 181 companies listed on the Tehran Stock Exchange and in a period of 6 years from the beginning of 1392 to the end of 1397. Evidence from the model brush related to the first hypothesis proved that the efficiency of investment has a negative and significant effect on the cost of capital. But political connections do not have a significant effect on the cost of capital. Studies have also shown that political communication has a negative and significant effect on the relationship between investment efficiency and the cost of capital. Manuscript profile -
Open Access Article
335 - Shareholder behavior, suppression of managers' opportunistic behavior and capital market efficiency based on Baron and Kenny's regression method
Asieh ahmadi niyasani sina Kheradyar Mojtaba Maleki ChoubariThe purpose of this research is to investigate the mediating role of suppressing managers' opportunistic behavior in the relationship between shareholders' loyalty and capital market efficiency. the time scope of the research is the years 2015 to 2021.In this research, MoreThe purpose of this research is to investigate the mediating role of suppressing managers' opportunistic behavior in the relationship between shareholders' loyalty and capital market efficiency. the time scope of the research is the years 2015 to 2021.In this research, 143 companies have been considered as a statistical sample of the systematic elimination method Findings In the first hypothesis of the research, it indicates a significant relationship between the loyalty of the shareholders and the efficiency of the capital market, so it can be said that if the loyal shareholders behave analytically and logically, we can witness the efficiency of the capital market. In the second hypothesis of the research, this result We found that the loyalty of the shareholders leads to the suppression of the opportunistic behavior of the managers. It is possible that the owners can reduce the opportunistic behavior of the managers by establishing the conditions that certain accounting methods are used for certain purposes. We found that suppressing managers' opportunistic behavior can lead to capital market efficiency. In this way, the managers will not use available and private information for their personal interests and will consider the interests of all owners and will move the market towards efficiency. in the main hypothesis of the research, which is the goal of the research, we came to the conclusion that the suppression of the opportunistic behavior of managers is a mediator. It has a relative clause. Manuscript profile -
Open Access Article
336 - Stakeholder Relationship Capability and Investment Efficiency: A Mosaic Homology Theory Test
Maryam Ghaed Vali Khodadadi Alireza jorjorzadeh Ahmad KaabomeirConsidering the constraints on resources and the need for firms’ planning to avoid recession and underdevelopment, enhanced investment efficiency would promote the capital market attractiveness and increase the performance of capital market investment. Empowering MoreConsidering the constraints on resources and the need for firms’ planning to avoid recession and underdevelopment, enhanced investment efficiency would promote the capital market attractiveness and increase the performance of capital market investment. Empowering these markets through investment efficiency requires to promote the flow of information disclosure to stakeholders in order to provide the greater coherence and integration of information, enhance equal decision-making capabilities, and promote trust and confidence in the company. The present study aimed to examine the impact of stakeholder relationship capability on investment efficiency through testing the mosaic theory. In this study, two criteria (namely the ratio of net fixed assets to total assets and investment level) were used in order to measure investment efficiency. Furthermore, meta-synthesis and Delphi analyses were adopted based on a 5-point Likert scale to measure the development of stakeholder relationship capability. To collect the research data, the questionnaires were sent to 142 companies in 2019, of which 112 questionnaires were returned by the managers of the firms listed in Tehran Stock Exchange. To fit and test the research hypothesis, the partial least squares analysis was used. After confirming the fit of the model, the results revealed that the stakeholder relationship capability had a positive and significant effect on investment efficiency. With regard to the Mosaic theory, this finding confirms that the equity of information in reflecting news and knowledge among stakeholders can promote the role of the firm's stakeholder relationship capability, thus enhancing the investment efficiency. Manuscript profile -
Open Access Article
337 - A model of the Quality of Financial Reporting based on the Structural Factors and Efficiency of Companies According to the Role of the Supervisory Committee
hajiebrahim nakhaei mohammadhossein ranjbar alireza momeni hossein badieiThis research has been conducted with the aim of providing a model of the quality of financial reporting based on the structural factors and efficiency of the companies according to the role of the supervisory committee in the companies admitted to the Tehran Stock Exch MoreThis research has been conducted with the aim of providing a model of the quality of financial reporting based on the structural factors and efficiency of the companies according to the role of the supervisory committee in the companies admitted to the Tehran Stock Exchange during the period of 2022. Considering the unlimitedness of the statistical population, in order to select the sample size, 291 managers, employees and experts in the field of finance and accounting were selected.Data collection tool in this research is a questionnaire. Findings regarding the first hypothesis showed that causal conditions with the mediating role of the central category of financial reporting quality have a direct and significant effect on the strategy.Result of the second hypothesis revealed that the central category of financial reporting quality with the mediating role of strategy has a direct and significant effect on the outcome.Result of the third hypothesis indicated that the causal conditions with the mediating role of the focus category of financial reporting quality and strategy have a direct and significant effect on the outcome.Result of the fourth hypothesis indicated that the background conditions with the mediating role of the strategy have a direct and significant effect on the outcome.Result of the fifth hypothesis show that the intervening conditions with the mediating role of the strategy have a direct and significant effect on the outcome.After checking and confirming the structural model, the SRMR index was also reported to be less than 0.10 and finally, the model was also confirmed. Manuscript profile -
Open Access Article
338 - Modeling The Effective variables on investment efficiency: evidence from Tehran Stock Exchange.
Zahra Tahmooresi qodratallah talebnia Rasoul Baradaran Hassanzadeh Nemat Allah Mousavi hamidreza vakilifardThe main aim of this study is to present a pattern for determining and measuring investment efficiency in accordance with the market conditions of Iran. To do so, studying previous studies and thematic literature, 17 variables were identified to present an optimal inves MoreThe main aim of this study is to present a pattern for determining and measuring investment efficiency in accordance with the market conditions of Iran. To do so, studying previous studies and thematic literature, 17 variables were identified to present an optimal investment efficiency model. Using panel data and the use of eviews9 & stata 14 software, it was suggested to provide a concrete investment efficiency pattern based on the cash flow of investment activities was undertaken. The statistical population of this study includes 129 companies listed on the stock exchange during the time period of 2007- 2016. Finally, the final model of the research, with the abbreviation title of (ineff) and the participation of 11 variables including company size, leverage, company's age, Qtubin, sales growth, return on assets, ratio of operating profit to assets, ratio of operating cash flow to assets, liquidity ratio, standard deviation of operating cash flows and cash ratio with a coefficient of 45% was estimated Manuscript profile -
Open Access Article
339 - Empirically examining of the effect of week days on future contracts market of Bahar Azadi Coin in Tehran Merchandise Exchange
Peyman Tataee Jalal Seifoddini Emad Ahmadipour Leila AzadiThis study empirically examined the effect of week days on future contracts of Bahar Azadi Coin in Iran Merchandise Exchange. We used the classic Linear Autoregressive and Generalized Autoregressive Conditional Heteroscedasticity (GARCH) to show that there isn't a stand MoreThis study empirically examined the effect of week days on future contracts of Bahar Azadi Coin in Iran Merchandise Exchange. We used the classic Linear Autoregressive and Generalized Autoregressive Conditional Heteroscedasticity (GARCH) to show that there isn't a standard pattern for the return of future contracts of Bahar Azadi Coin. Also, we presented that the daily return of future contracts depended on previous day and even the day before. Thus we concluded that the prices didn't follow "Random Walk" phenomenon in the future market of Bahar Azadi Coin and we couldn’t find any evidence for market information efficiency in weak level. Manuscript profile -
Open Access Article
340 - Credit risk management in the banking system - A comparative approach of Data Envelopment Analysis and Neural Network and Logistic Regression
Marziyeh Ebrahimi Shghagi Abdollah DaryaborThis research has been done with the aim of identification of effective factors which influence credit risk and designing model for estimating credit Rating of the companies which have borrowed from a commercial Bank in the one-year period by using Data Envelopment Anal MoreThis research has been done with the aim of identification of effective factors which influence credit risk and designing model for estimating credit Rating of the companies which have borrowed from a commercial Bank in the one-year period by using Data Envelopment Analysis and neural network model and comparison of these two models . For this purpose the necessary sample data on financial and non-financial information of 146 companies (as random simple) was selected. In this research, 27 explanatory variables (include financial and non-financial variables) were obtained, by application of factor analysis and Delphi method for examination. Finally 8 variables which had significant effect on credit risk were selected and entered to DEA model. Efficiency of companies was calculated with these variables. Also variables as well as the input vector three-layer perceptron neural network models were added to the model .finally data was processes with logistic regression. Results from data envelopment analysis model and Neural network and Logistic regression in comparisons to the actual results obtained from neural network models to predict credit risk legal customers and credit rating suggest that neural network is more efficient than data envelopment analysis and logistic regression. Manuscript profile -
Open Access Article
341 - Empirical analysis of fractal dimensions on cash return and price indices of listed companies of Tehran Stock Exchange
Shokrollah Khajavi Hadi Abdi Taleb BeigiThe goal of this research is to empirical analyzing fractal dimensions on cash return and price indices of listed companies of Tehran Stock Exchange. To have access to this goal, cash return and price indices of Tehran Stock Exchange were studied. Statistical sample of MoreThe goal of this research is to empirical analyzing fractal dimensions on cash return and price indices of listed companies of Tehran Stock Exchange. To have access to this goal, cash return and price indices of Tehran Stock Exchange were studied. Statistical sample of research includes cash return and price indices during period 1382 to 1391. Using R/S analysis and Hurst exponent, this research surveys the cash return and price time series being stochastic. To study the stochastic time series and differentiating from time series are not stochastic, R/S analysis is used as an efficient nonlinear method. Distribution type disrelation is the most important advantage of R/S analysis. Results of research show that, cash return and price indices time series are not stochastic and have a long-memory. Manuscript profile -
Open Access Article
342 - The study of the effect of motivation on the senior managers of wealth creation for Shareholders
Zohreh Hajiha Hassan Chenari BouketShareholders are the original owner of the business unit and continuously seek to maximize their own wealth and the wealth of the business unit for optimal performance will result. Due to high sensitivity of investors to the performance of companies wealth is one of the MoreShareholders are the original owner of the business unit and continuously seek to maximize their own wealth and the wealth of the business unit for optimal performance will result. Due to high sensitivity of investors to the performance of companies wealth is one of the most important objectives of the companies and the performance appraisal systems are useful tools for appraisal evaluation of the manager's performance. So, the main aim of this paper is the study of the relationship between Pay-for-performance sensitivity as an independent variable and shareholder value added & CEO pay efficiency as a dependent variables in Tehran Stock Exchange. Therefore, the data of 81 firms for a five-year period (1385-1389) were studied. The multivariate pooled regression model is used to test the hypotheses. The results show that there is significant relationship between Pay-for-performance sensitivity and shareholder value added but there is no significant relationship between Pay-for-performance sensitivity and CEO pay efficiency. Although the overall result is executive senior managers for Iranian companies to create value for shareholders, but payment is not efficient enough. Manuscript profile -
Open Access Article
343 - Effect of type of finance on investment efficiency with an emphasis on company value
Dariush Farid Maryam GhadakforoushanThe aim of this study was to evaluate the impact type of finance on investment efficiency in the company is listed on the Tehran Stock Exchange. What distinguishes this research from other research in the field of investment efficiency is variable financing policy Using MoreThe aim of this study was to evaluate the impact type of finance on investment efficiency in the company is listed on the Tehran Stock Exchange. What distinguishes this research from other research in the field of investment efficiency is variable financing policy Using the Hierarchical model that the debt ratio, financial leverage and accumulated earnings have used is measured and to measure the efficiency of investment have used biddle (2009). sample Statistical has been selected using systematic elimination and restricting the number of variables 85 years (1390-1394). hypotheses , were tested and analyzed using regression model and control variables taking into account the value of the company, ROA, ROE and net working capital using panel data regression technique with E'views9 software. The results suggest that financial policies have significant impact on investment efficiency. In addition, financial policies and investment efficiency have different effects in companies with different values. To users of financial statements including investors recommended to choose companies with higher debt ratio and financial leverage and less accumulated earnings. Manuscript profile -
Open Access Article
344 - Performance test to calculate the risk of classical general
Masoud Karimkhani Maryam AbdoliInvestment principles and methods of study and implementation, In order to select the best investment plan, it is done according to the rate of return and risk. General risk to the uncertainty arising from changing market conditions, such as: Changes in asset prices, in MoreInvestment principles and methods of study and implementation, In order to select the best investment plan, it is done according to the rate of return and risk. General risk to the uncertainty arising from changing market conditions, such as: Changes in asset prices, interest rates, market volatility and market liquidity risks which led to the trading portfolio returns or financial institution will be valuable assets. In efficient markets for risk calculation, the standard deviation of market index returns are calculated. With regard to research performance in Tehran Stock Exchange, the standard deviation of these variables can easily be used as a risk. In order to study the time series model of Box - Jenkins was used to calculate risk. Then calculate the standard deviation of return and standard deviation of variable prediction errors Box - Jenkins was compared. And finally the general risks associated with market price on total revenue was reviewed. The results of this study show that the classical calculation of general risk factors such as standard deviation calculated risk could be the answer.The relation was also significant is the risk and cost. So investors in predicting the risk of price per share on revenue of use. Manuscript profile -
Open Access Article
345 - Relationship between Financial Constraint and Investment Efficiency and Working Capital Strategy
Karim Pouralireza Rasoul Baradaran Hasanzadeh Younes Badavar Nahandi Mehdi ZeynaliRegarding the limitation of resources and as a result of increasing importance of increase in investment efficiency and the important role of working capital in the business of the economic corporations, this study is devoted to the relationship between financial constr MoreRegarding the limitation of resources and as a result of increasing importance of increase in investment efficiency and the important role of working capital in the business of the economic corporations, this study is devoted to the relationship between financial constraint and investment efficiency and working capital strategy. Financial data of 171 firms in the time period of 2011-2016 is studied in this research. According to the conducted analyses of the first hypothesis, financial constraint has a positive and meaningful effect on inefficiency of the investment. The second hypothesis showed that financial constraint has no meaningful relationship with the working capital policies .The third hypothesis shows a positive and meaningful relationship between financial constraint and investment inefficiency in companies adopting risky strategies and finally the fourth hypothesis showed no meaningful relationship between financial constraint and investment inefficiency in companies adopting a conservative policy. The general conclusions show that a limitation in resourcing will entail a deviation from favorite investment. Also, the unwanted effect of the financial constraint on effective investment occurs only in companies with risky strategies of working capital and it does not exist in companies with conservative strategies. Manuscript profile -
Open Access Article
346 - Effect of natural and legal persons trading in the occurrence of price bubbles in Tehran Stock Exchange
Mirfeyze Fallahshams Meysam alimohammadiThis paper examines the impact of individual and institutional trading in a bubble in the price of listed companies in Tehran Stock Exchange. First, through some tests such as Runs test (test based on rows or flow test), skewness, stretching and duration dependence was MoreThis paper examines the impact of individual and institutional trading in a bubble in the price of listed companies in Tehran Stock Exchange. First, through some tests such as Runs test (test based on rows or flow test), skewness, stretching and duration dependence was found in the Tehran Stock Exchange for the 1391/01/01 up to 1391/09/30 bubbles occurred. In the period between the day and the time series of 5-minute check prices and deals from individual and institutional persons in the interval 5-minute review We have covered the impact of that effect. After performing tests to detect bubbles in the companies studied, the samples were divided into two groups with no bubbles and speculative bubbles. To investigate the impact of the behavior individual and institutional persons in the company speculative bubbles, Transactions of the group of people at a time series between the day 5 minutes from and Using binary Logit regression model to examine the impact of these two transactions are dealt with in the incidence of bubbles. The results of the model indicate that individuals have a greater impact than legal entities, in the development of research have ranged from speculative bubbles. Manuscript profile -
Open Access Article
347 - Analysing Investors’ overreaction to the Accruals (Accrulas Anomoly) in Tehran Stock Exchange
Seyyed Ali Hosseini Hojjat Esmaeilzadeh MohammadSadegh GhaznaviIn the following research, investors’ overreaction to accruals is investigated in Tehran Stock Exchange through the years of 1384 to 1390. In order to analyze investors’ overreaction, we use the relation between current year accruals and the successive year MoreIn the following research, investors’ overreaction to accruals is investigated in Tehran Stock Exchange through the years of 1384 to 1390. In order to analyze investors’ overreaction, we use the relation between current year accruals and the successive year abnormal returns. In measurement of accruals, Sloan model for working capital have been used. Abnormal return is calculated by the difference between actual return of each year and average of two past years return. Results of this study show that in Tehran stock exchange, investors overreact to accrulas and this betoken as accruals anomaly. Accruals anomaly is categorized in market inefficiency studies, because it shows the ability of gaining abnormal return if someone gobble up information. Manuscript profile -
Open Access Article
348 - Production planning in parallel production systems such as banks: A DEA-based approach
Sohrab Kordrostamia Alireza Amirteimoori Atefeh MasoumzadehaBanking industry in the world and especially in Iran are among those competitive organizations that active based on parallel production systems. So,production planning for the next period of activity is so sensitive, and important. To achieve these end, Decisions should MoreBanking industry in the world and especially in Iran are among those competitive organizations that active based on parallel production systems. So,production planning for the next period of activity is so sensitive, and important. To achieve these end, Decisions should forecastes short and long financial plans for next period. In many real word problems, there is production systems which are composed a finite number of production stations arranged in parallel. The problem of production planning and resource allocation in such systems is an important subject in DEA context. In this paper, the problem of resource allocation and production planning in parallel production systems has been studied. An aggregated DEA model is used to the production planning problem. An empirical example is used to illustrate the applicability to the proposed approach. Manuscript profile -
Open Access Article
349 - Efficiency Evaluation and Rating of registerd brokerage firms of Tehran Stock Exchange Using data envelopment analysis (DEA)
Heidar Foroughnejad Ghader Masoomi Khanegha Manochehr MirzaeiThe main purpose of this study is to evaluate the efficiency and rating of registerd brokerage firms of Tehran Stock Exchange using data envelopment analysis. To do this, the rating data of 87 active brokers in Tehran Stock Exchange that have done for 1390(2012) year b MoreThe main purpose of this study is to evaluate the efficiency and rating of registerd brokerage firms of Tehran Stock Exchange using data envelopment analysis. To do this, the rating data of 87 active brokers in Tehran Stock Exchange that have done for 1390(2012) year by securities and exchange organization, was used and broker’s efficiency was measured by using DEA-Master software. Also, efficient brokers were rated based on Anderson-Peterson method in two states of input oriented and output oriented. Results showed that, among the 87 brokers, only 44 brokers were efficient. Results also showed, brokers that have top rated by securities and exchange organization, based on data envelopment analysis techniques are not necessarily efficient. In other words, some of low rated brokers by securities and exchange organization were more efficient than top rated brokers by securities and exchange organization. Manuscript profile -
Open Access Article
350 - Stock Liquidity, Investment Efficiency, and Firm's Performance: Evidence from Tehran Stock Exchange
Heidar Foroughnejad Mohsen Moradi Joz Hossein Heidari Ghader Masoumi KhanghahThis study investigates the relationship between stock liquidity, investment efficiency, and firm's performance in Tehran Stock Exchange. In this study, three criteria including trading volume ratio, the bid ask spread, and Amihud's stock liquidity ratio are used to qua MoreThis study investigates the relationship between stock liquidity, investment efficiency, and firm's performance in Tehran Stock Exchange. In this study, three criteria including trading volume ratio, the bid ask spread, and Amihud's stock liquidity ratio are used to quantify stock liquidity. Moreover, the model of Biddle et al and that of Tobins'Q are applied to determine investment efficiency and firms's performance, respectively. In so doing, the data of 115 firms listed in Tehran Stock Exchange for the period between 1387 and 1391 was collected and tested by using the multi-variable regression model based on panel data. The experimental results indicate that the first research hypothesis- the significantly positive impact of stock liquidity on investment efficiency- is statistically confirmed in a way that stock liquidity leads to investment efficiency. In addition, the investment efficiency results in an increase in firm's performance. The results also show that the bid ask spread criterion is of more effective and explanatory power than those of trading volume and Amihud's stock liquidity. Manuscript profile -
Open Access Article
351 - Investigation of Relationship between Corporate Governance and Cash Flow with Firms’ Investment Efficiency
Samaneh sadat Salavati Abdorreza AsadiInvestment in different activities has been considered by the company as of ways corporate development and avoid recession. The aim of this study is investigate the relationship between free cash flow and corporate governance with their efficiency investments. Therefore MoreInvestment in different activities has been considered by the company as of ways corporate development and avoid recession. The aim of this study is investigate the relationship between free cash flow and corporate governance with their efficiency investments. Therefore, free cash flow and corporate governance are known as the independent variable that mean of corporate governance is required of members, ownership concentration and the proportion of institutional ownership. The data of 131 companies listed in Tehran Stock Exchange during the period 2010-2014 analysis by using panel data and regression multivariate was in Eviews software. A model was developed in order to test the hypothesis, according to the hypotheses. This model evaluated relationship between the excess cash and corporate governance by investment efficiency. The results of the test model showed that free cash flow did not effect on the investment efficiency but corporate governance has a significant impact on investment efficiency. Manuscript profile -
Open Access Article
352 - Evaluate the Economic Consequences of the Social Responsibility of Firms (With Emphasis on Investment Efficiency)
Masoumeh Shahsavari Rasoul SalmaniWith the rapid development of economic relations as well as reducing the state role in the economy, companies have more attention to society and social responsibility (CSR) for strengthening economic and trade relations. In this regard, the present study investigates th MoreWith the rapid development of economic relations as well as reducing the state role in the economy, companies have more attention to society and social responsibility (CSR) for strengthening economic and trade relations. In this regard, the present study investigates the effect of corporate social responsibility on the investment efficiency for companies listed in stock over the period 2011 to 2015. To measure corporate social responsibility reporting is used Barzegar Chech list (1392). The results show high social responsibility has reduced inefficient investment and thus has increased the investment efficiency. In fact, these findings suggest that social responsibility by reducing the information asymmetry between management and investors and resolving agency problems, has led to increased investment efficiency. Manuscript profile -
Open Access Article
353 - Efficiency and Productivity in Tehran Stock Exchange based on Diversification Strategy
Meysam Doaei Babooshka Shavazipour Mahdi Zamani SabziIn recent years, corporate diversification has turned into a highly controversial issue amongst numerous managers. It is contended by many that diversification is vitally important and highly effective especially when it comes to evaluating the financial performance. Th MoreIn recent years, corporate diversification has turned into a highly controversial issue amongst numerous managers. It is contended by many that diversification is vitally important and highly effective especially when it comes to evaluating the financial performance. There are several studies about the relationship between diversification and financial performance. However, there is no agreement that diversified firms are more efficient than focus firms. In this study, the listed firms in Tehran Stock Exchange are ranked based on their efficiency scores calculating by Data Envelopment Analysis (DEA) models. Then, by slack analysis, the proposed improvement strategies for inefficient firms have been cited. Ultimately, the Malmquist index of productivity (MIP) has been utilized to further comparison and analysis. Manuscript profile -
Open Access Article
354 - The effect of capital structure on firm efficiency and product competitive market of Listed Companies in Tehran Stock Exchange
Bahram Korzbor Shadi ShahverdianiMany theorists of financial markets believe that capital structure has a significant impact on corporate efficiency and product competitive market. In this regard, the impact of capital structure on firm efficiency and product competitive market has been studied at Tehr MoreMany theorists of financial markets believe that capital structure has a significant impact on corporate efficiency and product competitive market. In this regard, the impact of capital structure on firm efficiency and product competitive market has been studied at Tehran Stock Exchange in the following research. Therefore, in order to examine the variables of capital structure, efficiency, and product competitive market, the ratio of financial leverage, method of data envelopment analysis, and herfindahl-hirschman index and Tobin’s Q index to be used respectively. On this basis, data of 92 listed companies in Tehran Stock Exchange over the period of 2005 to 2012 was gathered and were studied by econometric models and regression method. The results show that capital structure has significant effect on efficiency and product market competition (According to the Tobin’s Q index) and The results show that capital structure has no significant effect on product market competition (According to the herfindahl-hirschman index). Manuscript profile -
Open Access Article
355 - The investigation of the effect of risk disclosure on investment efficiency of accepted companies in Tehran stock exchange
Soghra Fasihi Seyed Ali Hosseini Shahnaz MashayekhFirms need investment for their growth and development. According to efficiency contracts, management should choose efficient investment among different them. Previous research assess different factors relating to firm specification such as information quality and capit MoreFirms need investment for their growth and development. According to efficiency contracts, management should choose efficient investment among different them. Previous research assess different factors relating to firm specification such as information quality and capital structure on investment efficiency, but there is a gap on effect of risk disclosure.so, the aim of this research is investigation of The investigation of risk disclosure on investment efficiency .according to theory and previous research expected that risk disclosure has significant effect on investment efficiency. For calculate of risk disclosure index we used manual content analysis and we categorize risks in four categories’ include financial, operational, regulation and strategies. After that, we used Miihkinen (2103) to calculate risk index. Also, we used Chen et al (2014) for investment efficiency. Our sample includes 60 firms from 2009 to 2017. The result shows that risk disclosure has a significant and positive impact on investment efficiency that means when the risk disclosure increases as the investment efficiency increases. Manuscript profile -
Open Access Article
356 - تکنیک های اندازه گیری کارایی در حضور تولیدات نامطلوب
S. Masrouri AR. Amirteimoori S. Kordrostamiاندازه گیری کارایی در حضور خروجی های نامطلوب موضوع مهمی است که توجه محققان بسیاری را به خود جلب کرده است. مقالات متعددی در خصوص خروجی های نامطلوب در روند تولید وجود دارد که می توان آنها را به دو گروه تقسیم کرد. در گروه اول در روند مدل سازی خروجی های نامطلوب مانند ورودی Moreاندازه گیری کارایی در حضور خروجی های نامطلوب موضوع مهمی است که توجه محققان بسیاری را به خود جلب کرده است. مقالات متعددی در خصوص خروجی های نامطلوب در روند تولید وجود دارد که می توان آنها را به دو گروه تقسیم کرد. در گروه اول در روند مدل سازی خروجی های نامطلوب مانند ورودی ها در نظر گرفته می شوند در حالی که گروه دوم خروجی های نامطلوب را مانند خروجی ها در مدل در نظر می گیرند. در این مقاله رویکردهای متفاوت از این دوگروه برای دستیابی به یک رویکرد درست تحلیل می شود. با توجه به مثال های عددی ارائه شده، تکنولوژیی درست و کامل است که در آن از اصل دسترسی پذیری ضعیف استفاده شده است. Manuscript profile -
Open Access Article
357 - یک روش ترکیببی جدید بر اساس تحلیل پوششی داده ها و شبکه عصبی برای بهینه سازی ارزیابی عملکرد
علی نمکین سید اسماعیل نجفی محمد فلاح مهرداد جوادیدر این مقاله ، یک روش جدید ترکیبی از شبکه های عصبی پرسپترون چند لایه و تحلیل پوششی داده ها ارائه می شود که در آن مقادیر ورودی و خروجی برای تعداد زیادی واحد تصمیم گیرنده به عنوان ورودی های شبکه عصبی تعیین می شود. می توان دید که با بکارگیری شبکه عصبی برای حل مسائل تحلیل پ Moreدر این مقاله ، یک روش جدید ترکیبی از شبکه های عصبی پرسپترون چند لایه و تحلیل پوششی داده ها ارائه می شود که در آن مقادیر ورودی و خروجی برای تعداد زیادی واحد تصمیم گیرنده به عنوان ورودی های شبکه عصبی تعیین می شود. می توان دید که با بکارگیری شبکه عصبی برای حل مسائل تحلیل پوششی داده ها نیاز به حل مدل مورد نظر برای هر واحد تصمیم گیرنده نیست و لذا الگوریتم ارائه شده زمان پردازش و استفاده از حافظه را نسبت به آنچه مورد نیاز روش متعارف در تحلیل پوششی داده ها است، به مقدار زیادی کاهش می دهد.جهت بررسی دقت شبکه ارائه شده، چندمطالعه موردی از جمله مجموعه ای از 500شعبه بانک مورد استفاده قرار می گیرد.نتایج نشان دهنده دقت بالا وزمان محاسباتی کمتر(اعتبارلازم) مدل ترکیبی پیشنهادی است. Manuscript profile -
Open Access Article
358 - Generalized Fuzzy Inverse Data envelopment Analysis Models
A. Ashrafi M. Mansouri -
Open Access Article
359 - Cost Efficiency Measures In Data Envelopment Analysis With Nonhomogeneous DMUs
M. Barat G. Tohidi M. Sanei -
Open Access Article
360 - A Divergence Measure for Combining Super-Efficiency Scores in Performance Measurement of Two-Stage Production Systems
M. Khounsiavash R. Kazemi Matin M. Khodabin -
Open Access Article
361 - Revenue - Profit Measurement in Data Envelopment Analysis with Dynamic Network Structures: A Relational Model
S. Seyedboveir S. Kordrostami B. Daneshian -
Open Access Article
362 - A Note On Dual Models Of Interval DEA and Its Extension To Interval Data
H. Azizi A. Amirteimoori S. Kordrostami -
Open Access Article
363 - A New Method for Optimization of Inefficient Cost Units In The Presence of Undesirable Outputs
S. Sadri M. Rostamy Malkhalifeh N. Shoja -
Open Access Article
364 - آنالیز کارایی هزینه و درآمد غیرمحدب در شبکه دو مرحله ای و کاربرد آن برای فرودگاههای ایران
جواد گرامی محمد رضا مظفری پریسا کامیابدر دنیای حقیقی ممکن است تصمیم گیرنده بخواهد کارایی هزینه و درآمد را برای واحدهای تصمیم گیرنده موجود در مقابل برای واحدهای تصمیم گیرنده مجازی انجام دهد در اینصورت دیگر نمی توان از مدلهای سنتی تحلیل پوششی داده ها استفاده نمود و باید از مدلهای FDH به منظور ارزیابی کارایی و Moreدر دنیای حقیقی ممکن است تصمیم گیرنده بخواهد کارایی هزینه و درآمد را برای واحدهای تصمیم گیرنده موجود در مقابل برای واحدهای تصمیم گیرنده مجازی انجام دهد در اینصورت دیگر نمی توان از مدلهای سنتی تحلیل پوششی داده ها استفاده نمود و باید از مدلهای FDH به منظور ارزیابی کارایی واحدهای تصمیم گیرنده استفاده نماییم. در این مقاله مدلهای ارزیابی کارایی درآمد و هزینه را بر اساس مدلهای FDH و مقایسات زوجی توسعه می دهیم. در ادامه مدلهای ارائه شده را برای شبکه دو مرحله ای توسعه میدهیم و مقادیر مطلوب ورودیها و خروجیها را با توجه به قیمت آنها بدست می آوریم. یک الگوریتم برای اندازه گیری کارایی هزینه و درآمد بر اساس نسبت ورودیها و خروجیها ارائه شده است. سرانجام الگوریتم ارائه شده را برای ارزیابی کارایی 13 فرودگاه با ساختار شبکه دو مرحله ای در ایران بدون در نظر گرفتن قید تحدب بکار می بریم. در انتها نتایج حاصل از تحقیق را ارائه میدهیم. Manuscript profile -
Open Access Article
365 - Network Data Envelopment Analysis Models For Measuring Efficiency Of a Four-Stage Supply Chain With Returned Outputs
M. Vaez-Ghasemi Z. Moghaddas B. Rahmani -
Open Access Article
366 - تحلیل پوششی داده های شبکه ای پنجره ای: کاربرد در شرکت های سرمایه گذاری
P. Peykani E. Mohammadiتحلیل پوششی داده های شبکه ای یکی از مهم ترین شاخه های تحلیل پوششی داده ها می باشد که به منظور سنجش عملکرد واحدهای تصمیم گیرنده با ساختار داخلی یا شبکه به کار گرفته می شود. در این مطالعه، مدل تحلیل پوششی داده های شبکه ای پنجره ای ارائه می شود که می تواند در حضور داده های Moreتحلیل پوششی داده های شبکه ای یکی از مهم ترین شاخه های تحلیل پوششی داده ها می باشد که به منظور سنجش عملکرد واحدهای تصمیم گیرنده با ساختار داخلی یا شبکه به کار گرفته می شود. در این مطالعه، مدل تحلیل پوششی داده های شبکه ای پنجره ای ارائه می شود که می تواند در حضور داده های پانل مورد استفاده قرار گیرد. علاوه بر این ، مدل پیشنهادی برای ارزیابی کارایی پویای 5 شرکت سرمایه گذاری در بورس اوراق بهادار تهران در بازه زمانی 2013 تا 2017 استفاده شده است. نتایج تجربی نشان می دهد که مدل پیشنهادی تحلیل پوششی داده های شبکه ای پنجره ای مؤثر است و استفاده از این مدل ، قابلیت اطمینان نتایج را افزایش می دهد. Manuscript profile -
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367 - Ranking of Efficiency in Context-dependent Data Envelopment Analysis with Non-discretionary Data
M. Khanmohammadi M. Kazemimanesh -
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368 - پیش بینی الگو برای واحدهای تصمیم گیرنده در تحلیل پوششی داده ها
مرتضی شفیعی فرهاد حسین زاده لطفی هیلدا صالحاگرچه تحلیل پوششی داده­ها یک ابراز قدرتمند برای ارزیابی عملکرد واحدهای تحت ارزیابی می­باشد ولی این تکنیک دارای محدودیت­هایی نیز می­باشد. به عنوان نمونه یکی از محدودیت­های این روش، ارزیابی عملکرد سیستم براساس ورودی و خروجی­های قدیم است بنابر Moreاگرچه تحلیل پوششی داده­ها یک ابراز قدرتمند برای ارزیابی عملکرد واحدهای تحت ارزیابی می­باشد ولی این تکنیک دارای محدودیت­هایی نیز می­باشد. به عنوان نمونه یکی از محدودیت­های این روش، ارزیابی عملکرد سیستم براساس ورودی و خروجی­های قدیم است بنابراین نتایج ارزیابی به­دست آمده از مدل­های کلاسیک DEA، برای پیش بینی تغییرات کارایی واحدها در آینده و در نتیجه ارایه الگوی مناسب برای رسیدن به یک واحد کارا، کاربردی نمی­باشد . بنابراین هدف این مقاله پیشنهاد یک روش جدید به منظور پیش بینی کارایی سیستم براساس ورودی و خروجی شبیه سازی شده با استفاده از سیستم پویا و تکنیک­های شبیه سازی است. زیرا با پیش بینی کارایی واحد تحت ارزیابی، مدیران در یک سیستم می­توانند برنامه ریزی دقیق­تری برای آینده داشته باشند. برای این منظور با استفاده از یک حلقه بازخورد، ورودی­ها و خروجی­ها در واحدهای تصمیم گیرنده در آینده مورد پیش بینی قرار گرفت سپس با استفاده از مدل CCR و ورودی­ها و خروجی­های پیش­بینی، شده به پیش بینی کارایی واحد تحت ارزیابی پرداختیم. Manuscript profile -
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369 - On an Efficient Family with Memory with High Order of Convergence for Solving Nonlinear Equations
V. Torkashvand M. Kazemi -
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370 - ارائه مدلی جدید برای ارزیابی و رتبه بندی واحدهای تصمیم گیری با داده های ترتیبی
جعفر پورمحمود داود نوروزیتحلیل پوششی داده های کلاسیک مقادیر ورودی ها و خروجی ها را کاملا مشخص فرض میکند. در حالیکه در اغلب مسایل واقعی مقادیر دقیق ورودی ها و خروجی ها مبهم هستند. یکی از داده های مبهم داده های ترتیبی هستند. در این مقاله مدل جدیدی برای اندازه گیری کارآیی واحدهای تصمیم گیری با داد Moreتحلیل پوششی داده های کلاسیک مقادیر ورودی ها و خروجی ها را کاملا مشخص فرض میکند. در حالیکه در اغلب مسایل واقعی مقادیر دقیق ورودی ها و خروجی ها مبهم هستند. یکی از داده های مبهم داده های ترتیبی هستند. در این مقاله مدل جدیدی برای اندازه گیری کارآیی واحدهای تصمیم گیری با داده های ترتیبی ارائه میشود. ایده کلی این مدل آن است که تغییرات کارایی واحدها در ارزیابی باید به اندازه قابل کنترل مجاز باشد. بعلاوه مدل جدیدی برای رتبه بندی واحدهای کارآ بیان می شود. نتایج مدل پیشنهادی با مدل کوپر مقایسه میشود. بنابراین نمرات کارآیی حاصل از مدل پیشنهادی قابل اعتمادتر از نتایج حاصل از مدل کوپر هستند. Manuscript profile -
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371 - ارائه یک مدل هدفگذاری مبتنی بر کارایی در ساختارهای سِری K مرحلهای
M. Homayounfar AR. Amirteimoori M. Goudarzvand- Cheginiتحلیل پوششی داده­ها به عنوان یک رویکرد اثربخش در ارزیابی کارایی نسبی واحدهای تصمیم­گیرنده، اخیراً در ارائه برنامه­های تولید در قالب تخصیص منابع و هدف­گذاری در بسیاری از سیستم­های تولیدی و عملیاتی مورد استفاده قرار گرفته است. اغلب این سیستم­ها دار Moreتحلیل پوششی داده­ها به عنوان یک رویکرد اثربخش در ارزیابی کارایی نسبی واحدهای تصمیم­گیرنده، اخیراً در ارائه برنامه­های تولید در قالب تخصیص منابع و هدف­گذاری در بسیاری از سیستم­های تولیدی و عملیاتی مورد استفاده قرار گرفته است. اغلب این سیستم­ها دارای ساختار شبکه­ای هستند که در آنها خروجی­های یک مرحله خاص، شاخص­های واسطه­ای هستند که ورودی­های مرحله بعد را تشکیل می­دهند. این مقاله یک مدل برنامه­ریزی خطی چند هدفه مبتنی بر تحلیل پوششی داده­های K مرحله­ای را که خروجی­های نامطلوب را مورد توجه قرار می­دهد، برای هدف­گذاری در ساختارهای شبکه­ای سری ارائه می­دهد. از آنجاییکه مدل پیشنهادی در هنگام ارائه ترکیب ورودی­ها / خروجی­ها، اندازه واحدهای تحت ارزیابی را مورد توجه قرار می­دهد، برنامه جدید شدنی بودن نتایج را تضمین می­کند. یک مثال واقعی از یک سیستم تولیدی برای نشان دادن کاربرد مدل پیشنهاد شده، استفاده شده است. نتایج نشان می­دهند که بر اساس برنامه جدید، همه امتیازات کارایی بهبود یافته­اند. Manuscript profile -
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372 - تحلیل پوششی داده ها و شاخص مالم کوئیست برای اندازه گیری بهره وری واحدهای تصمیم گیرنده ناکارا
ملیحه شاهکویی فرزاد رضایی بالف محسن ربانی مهدی فلاح جلودارتحلیل پوششی داده ها، یک تکنیک برنامه ریزی ریاضی ناپارامتریک برای ارزیابی کارایی مجموعه ای از واحدهای تصمیم گیری همگن است، به طوری که واحدهای تصمیم گیرنده را به دو گروه کارا و ناکارا ارزیابی می شوند. با توجه به هزینه های سرسام آور برای مدیریت DMU ها یا سازمان ها، نگهداری Moreتحلیل پوششی داده ها، یک تکنیک برنامه ریزی ریاضی ناپارامتریک برای ارزیابی کارایی مجموعه ای از واحدهای تصمیم گیری همگن است، به طوری که واحدهای تصمیم گیرنده را به دو گروه کارا و ناکارا ارزیابی می شوند. با توجه به هزینه های سرسام آور برای مدیریت DMU ها یا سازمان ها، نگهداری برخی از سازمان های زیان ده مقرون به صرفه نیست. بنابراین یکی از دغدغه های مدیران در بحث مربوط به مشکلات مالی سازمان ها، حفظ یا ادغام یا حذف سازمان های ناکارا (DMU های ناکارا) است. بنابراین، در این مقاله ما بهره وری واحدهای تصمیم گیرنده ناکارا را با استفاده از شاخص بهرهوری مالم کوئیست اصلاح شده اندازه گیری میکنیم تا بر اساس آن تصمیم حفظ یا ادغام یا حذف واحدهای تصمیم گیرنده ناکارا توسط تصمیم گیرندگان گرفته شود. Manuscript profile -
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373 - ناکارایی متقاطع تحت فرض بازده به مقیاس متغیر در تحلیل پوششی دادهها
بهداد اسدی هادی ناصری فرهاد حسین زاده لطفیروش رتبهبندی کارایی متقاطع یکی از روشهای شناخته شده در تحلیل پوششی دادههاست که اغلب تحت فرض بازده به مقیاس ثابت به کار گرفته میشود. این در حالی است که کاربردهای فراوانی تحت فرض بازده به مقیاس متغیر موجود هستند. دلیل اصلی این امر، حضور مقادیر کارایی متقاطع منفی در فر Moreروش رتبهبندی کارایی متقاطع یکی از روشهای شناخته شده در تحلیل پوششی دادههاست که اغلب تحت فرض بازده به مقیاس ثابت به کار گرفته میشود. این در حالی است که کاربردهای فراوانی تحت فرض بازده به مقیاس متغیر موجود هستند. دلیل اصلی این امر، حضور مقادیر کارایی متقاطع منفی در فرض بازده به مقیاس متغیر با ماهیت ورودی است. در این مقاله، هر کارایی متقاطع با یک معیار فاصلهی معادل به عنوان شاخصی از ناکارایی جایگزین میشود. سپس، بر اساس معیار فاصله مذکور، روش ناکارایی متقاطع تحت فرض بازده به مقیاس متغیر توسعه داده میشود. Manuscript profile -
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374 - مساله میانه و مرکز کارا: یک مدل برنامه ریزی صحیح توام دوهدفه
طاهره سیار جعفر فتحلی مجتبی غیاثیدر این مقاله ما یک مساله جدید از ادغام مساله مکانیابی و کارایی را ارائه می کنیم. هدف ما در این مساله، پیدا کردن یک مکان کارا در صفحه است. در نهایت به یک ترکیب جدید از ادغام مساله مکانیابی و تحلیل پوششی داده ها دست می یابیم. در این مقاله ما تفاوت کارخود را با سایر Moreدر این مقاله ما یک مساله جدید از ادغام مساله مکانیابی و کارایی را ارائه می کنیم. هدف ما در این مساله، پیدا کردن یک مکان کارا در صفحه است. در نهایت به یک ترکیب جدید از ادغام مساله مکانیابی و تحلیل پوششی داده ها دست می یابیم. در این مقاله ما تفاوت کارخود را با سایر کارهایی که در این زمینه انجام شده است را شرح می دهیم. سپس یک مدل برنامه ریزی دو هدفه را برای مساله یک میانه کارا و یک مرکز کارا ارائه می دهیم. Manuscript profile -
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375 - یک تجزیه جدید از کارایی هزینه بر اساس مجموعه های امکان تولید قیمتی و هزینه ای در فضای غیررقابتی در تحلیل پوششی داده ها
رضا فلاح نژاد الهام رضایی حزاوهشناسایی منابع مختلف ناکارایی، نقش مهمی در تحلیل عملکرد با هدف توسعه برنامههایی برای بهبود تصمیمگیری ایفا میکند. در این راستا نه تنها کارایی فنی، هزینه ای و تخصیصی را می توان با اطلاعات ورودی ها و خروجی ها و قیمت آنها تخمین زد، بلکه می توان زیان های ناشی از عدم سود، د Moreشناسایی منابع مختلف ناکارایی، نقش مهمی در تحلیل عملکرد با هدف توسعه برنامههایی برای بهبود تصمیمگیری ایفا میکند. در این راستا نه تنها کارایی فنی، هزینه ای و تخصیصی را می توان با اطلاعات ورودی ها و خروجی ها و قیمت آنها تخمین زد، بلکه می توان زیان های ناشی از عدم سود، درآمد و هزینه بهینه را نیز بر اساس ناکارای های مربوطه محاسبه کرد. مقاله حاضر قصد دارد تخمین جدیدی از کارایی هزینه و منابع تلفات در کارایی کل در یک محیط غیر رقابتی که امکان تغییر قیمت ورودی ها و خروجی ها از یک واحد تصمیم گیری وجود دارد، را ارائه دهد. در راستای مطالعات(Tone. K., Tsutsui, M. "Decomposition of Cost Efficiency and its Application to Japanese-Us Electric Utility Comparisons". Socio-Economic Planning Sciences 47 (2007), pp.91-106)و(Tone .K, "A Strange Case of the Cost and Allocative Efficiencies in DEA". Journal of the Operational Research Society 53, (2002), pp.1225-1231)مطالعه حاضر به دنبال معرفی منابع جدید ناکارایی و زیان های مرتبط با آنها توسط ارائه مجموعه های امکان تولید جدید مبتنی بر قیمت و هزینه می باشد. Manuscript profile -
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376 - بهبودهایی از روش کوردرو- تروخروزا برای حل معادلات غیرخطی
مریم محمدی زاده طاهر لطفی مجید امیرفخریاندر این مقاله، دو روش تطبیقی با حافظه بر اساس روش کوردرو- تروخروزا بهبود یافته است. تکنیک روش تطبیقی شاخص کارایی را تا حد ممکن افزایش میدهد. روش­های جدید بدون مشتق ارائه شده دارای مرتبه همگرایی 7/99315 و 7/46315 هستند و از اطلاعات دو تکرار گذشته اس Moreدر این مقاله، دو روش تطبیقی با حافظه بر اساس روش کوردرو- تروخروزا بهبود یافته است. تکنیک روش تطبیقی شاخص کارایی را تا حد ممکن افزایش میدهد. روش­های جدید بدون مشتق ارائه شده دارای مرتبه همگرایی 7/99315 و 7/46315 هستند و از اطلاعات دو تکرار گذشته استفاده می کنند. در نهایت، تجزیه و تحلیل همگرایی و مثال­های عددی را ارائه می­دهیم تا کارایی و کاربرد روش­های پیشنهادی را نشان دهیم. Manuscript profile -
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377 - یک روش عملی با رویکرد وزنهای مشترک برای رتبهبندی واحدهای تصمیم گیرنده در تحلیل پوششی دادهها
محمدجواد رضائیانی علی اصغر فروغیچند روش برای یافتن وزنهای مشترک در تاریخچه تحلیل پوششی دادهها وجود دارد. اما بیشتر آنها بر اساس مدلهای پیچیده هستند. در این مقاله، یک روش عملی جدید برای به دست آوردن مجموعهای از وزنهای مشترک ارائه میشود. به کمک چند مثال عددی، نتایج روش جدید با نتایج برخی از روشه Moreچند روش برای یافتن وزنهای مشترک در تاریخچه تحلیل پوششی دادهها وجود دارد. اما بیشتر آنها بر اساس مدلهای پیچیده هستند. در این مقاله، یک روش عملی جدید برای به دست آوردن مجموعهای از وزنهای مشترک ارائه میشود. به کمک چند مثال عددی، نتایج روش جدید با نتایج برخی از روشهای موجود مقایسه میشود. Manuscript profile -
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378 - کارایی تصادفی مبتنی بر مدل وزن مشترک در تحلیل پوششی داده ها
مرضیه قاسمی محمدرضا ظفری محسن رستمی مال خلیفه محمدحسن بهزادیتحلیل پوششی داده ها (DEA) روشی برای ارزیابی عملکرد مجموعه ای از واحدهای تصمیم گیرنده (DMU) متجانس با چندین ورودی و چندین خروجی می باشد. . مدل های مختلفی برای محاسبه کارایی در DEA وجود دارند که یکی از آن ها، مدل مجموعه وزن های مشترک (CSW) می باشد، که به طور گسترده ای توس Moreتحلیل پوششی داده ها (DEA) روشی برای ارزیابی عملکرد مجموعه ای از واحدهای تصمیم گیرنده (DMU) متجانس با چندین ورودی و چندین خروجی می باشد. . مدل های مختلفی برای محاسبه کارایی در DEA وجود دارند که یکی از آن ها، مدل مجموعه وزن های مشترک (CSW) می باشد، که به طور گسترده ای توسط افراد و متخصصان DEA مورد استفاده قرار می گیرد. در تحلیل پوششی داده های کلاسیک تمام مقادیر ورودی ها و خروجی ها به طور دقیق مشخص می باشند. با این حال این فرض ممکن است در مسائل کاربردی همواره برقرار نباشد. یکی از روش های مهم برای مقابله با داده های نامشخص، بررسی داده های تصادفی در DEA است. این مقاله مدل مجموعه وزن های مشترک را برای حالتی که ورودی ها و خروجی ها تصادفی هستند، توسعه می دهد. سپس مدل تصادفی وزن مشترک (SCSW) به یک مدل قطعی غیر خطی تبدیل می گردد. پس از آن مدل قطعی به یک مدل برنامه ریزی درجه دوم تبدیل می شود. . کارایی به دست آمده با استفاده از داده های تصادفی را کارایی تصادفی می نامیم. مفهوم ارائه شده در این مقاله با مثال عددی که مربوط به شعبه های یک بانک ایرانی است نشان داده می شود. Manuscript profile -
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379 - به حداکثر رساندن کارایی کل با تخصیص مجدد منابع در DEA: مطالعه موردی در بورس اوراق بهادار تهران
عصمت نوروزی الهه صرفیتجزیه و تحلیل پوششی داده ها یک تکنیک مبتنی بر برنامه ریزی ریاضی برای تعیین کارایی واحدهای تصمیم گیری (DMU) است. در برخی موارد ، مدیر قصد ندارد یک منبع جدید اضافه کند ، بلکه یکی از منابع قبلی را مجدداً تخصیص می دهد. تخصیص مجدد منابع ممکن است با اهداف مختلف انجام شود و مز Moreتجزیه و تحلیل پوششی داده ها یک تکنیک مبتنی بر برنامه ریزی ریاضی برای تعیین کارایی واحدهای تصمیم گیری (DMU) است. در برخی موارد ، مدیر قصد ندارد یک منبع جدید اضافه کند ، بلکه یکی از منابع قبلی را مجدداً تخصیص می دهد. تخصیص مجدد منابع ممکن است با اهداف مختلف انجام شود و مزایای متفاوتی داشته باشد. به عنوان مثال ، بدون افزودن منبع جدید و تنها با استفاده از منابع یکسان ، آیا می توان بازده یک واحد را افزایش داد یا حتی کارایی کل سیستم را افزایش داد؟ در این مقاله ، یک مدل ریاضی ارائه شده است که می تواند برای تخصیص مجدد یکی از منابع موجود قبلی بین واحدها به گونه ای استفاده شود که کارایی کل واحدهای تصمیم گیرنده به حداکثر مقدار ممکن برسد. در این مدل ، به منظور جلوگیری از کاهش بیش از حد سهم هر واحد از منبع مورد نظر ، محدودیت هایی در نظر گرفته شده است. در این محدودیت ها ، حد پایینی برای سهم هر واحد مشخص شده است. همچنین ، تخصیص مجدد منابع به احتمال زیاد منجر به تغییراتی در مقادیر خروجی واحدهای تصمیم گیرنده می شود. در مدل ارائه شده ، برخی از محدودیت ها در نظر گرفته می شوند که حد بالایی را برای خروجی های تولید شده توسط واحدها مشخص می کند. محدودیت های دیگری در این مدل وجود دارد. اول این که سهم کل واحدها از منبع مورد نظر نباید از مقدار موجود آن بیشتر باشد و دوم این که کل خروجی تولید شده توسط همه واحدها باید حداقل برابر کل خروجی تولید شده قبل از تخصیص مجدد باشد. مدل ارائه شده در این مقاله ، علاوه بر در نظر گرفتن محدودیت های توصیف شده ، که همه آنها اجتناب ناپذیر هستند ، به یک مدل برنامه ریزی خطی تبدیل شده است که توسط بسیاری از نرم افزارهای موجود قابل حل است. Manuscript profile -
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380 - جواب دقیق به فرم بسته برای انتقال حرارت از فین تابشی به شکل مستطیل
الیاس شیوانیان فاطمه سهرابیدر این مقاله، مساله تعیین انتقال حرارت از فین تابشی به شکل مستطیل بررسی می شود. ما حرارت یک بعدی و پایا در پره در نظر می گیریم و از تبادل تابشی بین پره های مجاور و بین پره و سطح اولیه آن صرفنظر می کنیم. نشان داده می شود که معادله فین حاکم، که یک معادله دیفرانسیل درجه دو Moreدر این مقاله، مساله تعیین انتقال حرارت از فین تابشی به شکل مستطیل بررسی می شود. ما حرارت یک بعدی و پایا در پره در نظر می گیریم و از تبادل تابشی بین پره های مجاور و بین پره و سطح اولیه آن صرفنظر می کنیم. نشان داده می شود که معادله فین حاکم، که یک معادله دیفرانسیل درجه دوم غیر خطی است، بصورت دقیق قابل حل است. جوابهای تحلیلی دقیق و به فرم بسته به شکل ضمنی برای تفسیر فیزیکی و بهینه سازی برای حداکثر انتقال حرارت مناسب ارایه می شود. علاوه بر این، جواب تحلیلی دقیق برای سرعت انتقال حرارت و بازده فین می شود. Manuscript profile -
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381 - ارزیابی فاصله ایده آل تا مرز کارایی در حضور مقادیر صحیح در DEA با رویکرد تابع فاصله جهت دار
پریناز فرهادی محسن رستمی مال خلیفه رضا کاظمی متیندر روش های مرسوم DEA تمامی ورودی ها و خروجی ها پیوسته فرض می شوند. با این حال، فرض ضمنی داده های پیوسته ممکن است سطح قابل قبولی از دقت را در داده های عملی حفظ نکند. بسیاری از موقعیتهای عملی مانند تعداد معلمان در یک مدرسه، تعداد دانشآموزان در کالج یا مقالات تحقیقاتی فق Moreدر روش های مرسوم DEA تمامی ورودی ها و خروجی ها پیوسته فرض می شوند. با این حال، فرض ضمنی داده های پیوسته ممکن است سطح قابل قبولی از دقت را در داده های عملی حفظ نکند. بسیاری از موقعیتهای عملی مانند تعداد معلمان در یک مدرسه، تعداد دانشآموزان در کالج یا مقالات تحقیقاتی فقط مقادیر صحیح را میگیرند. کار ارائه شده فرض می کند که زیر مجموعه های متغیرهای ورودی و خروجی در اصول موضوعه ی سنتی در مدل DEA برای اولین بار در این زمینه مقادیر صحیح هستند. تلاش اضافی در این کار بدیهیات را گسترش می دهد و مدل جدیدی ارائه می شود. این مقاله یک مدل دو فاز جدید را ارائه میکند که در فاز اول مقادیر کارایی دقیقتری را تولید میکند و بهترین معیار را در فاز دوم خود ایجاد میکند، یعنی نزدیکترین نقطه صحیح به مرز کارایی بر اساس بازده ثابت به مقیاس انتخاب میشود. یک مطالعه موردی ارائه شده است که مقایسه مقادیر کارایی بهدستآمده با این مدل را در مقایسه با مدلهای قبلی نشان میدهد که در جدول 1 نشان داده شده است. و در جدول 2، مقادیر شلی با یکدیگر مقایسه شدهاند. Manuscript profile -
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382 - طراحی مدل ارزیابی کارایی شبکه ای تولید دو مرحله ای، با خروجی مطلوب و نامطلوب (مطالعه موردی صنعت تولید کره)
عاطفه شیروانی امیر عزیزیتعیین و سنجش کارایی، راهبردی مهم در تصمیم گیریها می باشد با توجه به شفاف نبودن میزان کارایی مراحل تولید در واحدهای تولیدکره گیری، هدف این پژوهش، طراحی مدل تحلیل پوششی داده ها برای ارزیابی کارایی مراحل تولید این واحدها میباشد.روش این پژوهش، که نوآوری این پژوهش برای این Moreتعیین و سنجش کارایی، راهبردی مهم در تصمیم گیریها می باشد با توجه به شفاف نبودن میزان کارایی مراحل تولید در واحدهای تولیدکره گیری، هدف این پژوهش، طراحی مدل تحلیل پوششی داده ها برای ارزیابی کارایی مراحل تولید این واحدها میباشد.روش این پژوهش، که نوآوری این پژوهش برای این جامعه پژوهشی میباشد بدین صورت است که، با الگوگیری از مدل تحلیل پوششی داده های شبکه ای خلیلی و شهمیر(2015) مدلی برای ارزیابی کارایی سیستم تولید دو مرحله ای با خروجی مطلوب و نامطلوب، ارایـه گردیده است .بدین منظور، با استفاده از داده های دقیق و قطعی سال1399 مربوط به بیست کارخانه تولید کره، با تحلیل پوششی داده های شبکهای، کارایی مراحل دوگانه به صورت جداگانه و به صورت یکپارچه ارزیابی گردید. در پایان مرحله اول، دو نوع خروجی مطلوب وجود دارد یک خروجی مطلوب خامه صبحانه وجود دارد که وارد مرحله دوم تولید نمی شود و برای فروش به بازار عرضه می گردد و یک خروجی مطلوب دیگر، خامه پاستوریزه می باشد که به مرحله دوم تولید منتقل می شود. در پایان مرحله دوم، یک خروجی مطلوب یعنی کره بسته بندی شده و یک خروجی نامطلوب که دوغ کره می باشد، به دست می آید.کارایی تمامی بیست واحد مورد ارزیابی و مقایسه قرار گرفتند. بنا به کارایی فرآیند کل، تنها یک واحد کارا وجود دارد . بنا به کارایی مرحله اول، نیز تنها یک واحد کارا از بین بیست واحد وجود دارد و بنا به مرحله دوم، دو واحد کارا وجود دارند. نتیجه ای که گرفته شده است این می باشد که این صنعت در استانهای تهران و البرز، دارای ناکارآمدی زیادی در مراحل تولید میباشد و لزوم توجه مدیران این صنعت برای افزایش کارایی، الزامی است. Manuscript profile -
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383 - تاثیر شاخص متا مالمکوئیست روی بهینه سازی سبد دارایی
زهره طائب شکوفه بنی هاشمیاز آنجائیکه تغییر ارزش در معرض خطر شرطی (CVaR) در سطوح مختلف اطمینان برای بهینه سازی سبد بسیار موثر است، شاخص متا مالمکوئیست (MMI) دراین پژوهش استفاده شده است. برای این هدف، مدلهای میانگین- ارزش در معرض خطر شرطی با شاخص متا مالمکوئیست در حضور داده منفی معرفی گردیده است. Moreاز آنجائیکه تغییر ارزش در معرض خطر شرطی (CVaR) در سطوح مختلف اطمینان برای بهینه سازی سبد بسیار موثر است، شاخص متا مالمکوئیست (MMI) دراین پژوهش استفاده شده است. برای این هدف، مدلهای میانگین- ارزش در معرض خطر شرطی با شاخص متا مالمکوئیست در حضور داده منفی معرفی گردیده است. مشابه تئوری مارکوویتزدر چارچوب میانگین- واریانس، ارزش در معرض خطر شرطی به عنوان سنجه ریسک بکار رفته و مدلها بدون در نظر گرفتن چولگی و کشیدگی بازده مطرح شده است. در این مطالعه تعدادی داده منفی وجود دارد، بنابراین مدلهای برمبنای مدل اندازه جهت دار مبنایی (RDM) است که مقادیر مثبت و منفی را می پذیرد. در این مقاله، کارائیها در همه سطوح اطمینان در مدل های میانگین- ارزش در معرض خطر شرطی و شاخص متا مالمکوئیست روی سطوح اطمینان به عنوان دوره ها در حضور داده منفی محاسبه شده است. این روش به سرمایه گذاران کمک می کند که سبدهای سودآورشان را با شاخص متا مالمکوئیست بسازند. همچنین یک مطالعه عملی روی بازار بورس ایران انجام گرفته است. Manuscript profile -
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384 - The Semi-Additive Production Technology in Presence Flexible Measures in DEA
J. Geramiتحلیل پوششی داده ها کارایی نسبی واحدهای تصمیم گیرنده را بر اساس ورودیها و خروجیهای آنها به دست می آورد. در موقعیتهای زیادی بعضی از متغیرها، برای یک واحد تصمیم گیرنده می توانند نقش ورودی یا خروجی را بازی کنند. ارائه یک مدل مناسب که بتواند کارایی واحد تحت ارزیابی را با Moreتحلیل پوششی داده ها کارایی نسبی واحدهای تصمیم گیرنده را بر اساس ورودیها و خروجیهای آنها به دست می آورد. در موقعیتهای زیادی بعضی از متغیرها، برای یک واحد تصمیم گیرنده می توانند نقش ورودی یا خروجی را بازی کنند. ارائه یک مدل مناسب که بتواند کارایی واحد تحت ارزیابی را با انتخاب صحیح نقش این متغیرها حداکثر کند دارای اهمیت می باشد. یکی از تکنولوژی های تولید در تحلیل پوششی دادهها، تکنولوژی شبه جمعی می باشد. این تکنولوژی علاوه بر واحدهای تصمیمگیرنده مشاهده شده، واحدهای تجمعی متناظر با آنها را نیز در ارزیابی کارایی در نظر می گیرد. در این مقاله در ابتدا تکنولوژی تولید شبه جمعی را در حضور اندازههای انعطاف پذیر بدست می آوریم. ما نشان میدهیم که واحدهای تجمعی متناظر با هر یک از واحدهای تصمیمگیرنده در حضور اندازه های انعطاف پذیر چگونه به دست می آیند. در ادامه دو تقریب متفاوت برای اندازه گیری کارایی واحدهای تصمیمگیرنده در حضور اندازه های انعطاف پذیر در تکنولوژی شبه جمعی ارائه می دهیم و به مقایسه مقادیر کارایی واحدها بر اساس این تقریب ها می پردازیم. همچنین تقریب های ارائه شده در این مقاله را برای ارزیابی کارایی مجموعه داده ها مربوط به واحدهای دانشگاهی به کار می¬بریم. Manuscript profile -
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395 - Evaluation of Environmental Efficiency and Shadow Price of Pollutants Determination in Khuzestan Province Meat Livestock
Habib Shahbazi Zahra GheitasiBackground and Objective: The growing environmental problem and then Added cost which create diverse environmental activities, led scientists to modify their efficiency and productivity models with well-liked products and undesirable products effects. Emissions of green MoreBackground and Objective: The growing environmental problem and then Added cost which create diverse environmental activities, led scientists to modify their efficiency and productivity models with well-liked products and undesirable products effects. Emissions of greenhouse gases from various sources, especially from agriculture sector, are one of the main causes of environmental pollution.Material and Methodology: The purpose of this study was to evaluate the environmental effecuency and determination of the shadow price of pollutants for meat dairy in Khuzestan province. In this study, 60 samples and a random fronteier production function model have been used by frontier functions using the maximum likelihood method and the FRONTIER econometric software.Findings: Results indicate that the technical efficiency of the meat livestock units of the province is 0.99 which could indicate that meat livestock units have relatively high technical efficiency. Also, the results of environmental efficiency of Khuzestan province meat livestock units have shown that the average environmental efficiency is 0.29. In fact, this level of environmental efficiency shows that meat livestock units in Khuzestan province have relatively low environmental performance.Discussion and Conclusion: In order to prevent inaccurate decisions in the field of management and development of economic activities without concern for environmental issues, planner, policymaker and investors, in addition of technical effciency, should use enviromental efficency as developing criteria of their acivites. Manuscript profile -
Open Access Article
396 - Investigating the effectiveness of the Paris Agreement in domestic climate change lawsuits from the perspective of international law
meisam norouzi mehdi eskandari khoshguoDThe present study was conducted with the aim of modeling energy consumption in the main building of Tehran Municipality, District 5, and in order to determine the type and manner of energy consumption. Design Builder software was used for modeling. The four modeling sc MoreDThe present study was conducted with the aim of modeling energy consumption in the main building of Tehran Municipality, District 5, and in order to determine the type and manner of energy consumption. Design Builder software was used for modeling. The four modeling scenarios were the current state, the use of a movable canopy, the use of a photovoltaic panel, and the combined state. The results showed that the penetration air load coefficient is equal to 3132.5 W/K. Most of the heat received from the sun's heat comes from incoming radiation from the windows of the building. Red and blue are also related to the perceived load of heating and cooling of the building. The highest heat dissipation in cold seasons is related to the roof and glass of the building. Brightness is 54% of the points in the standard range, 2% of the points have more brightness than the standard and 44% of the points have less than the standard brightness. As can be deduced from the available results, the lighting condition (based on the installed capacity per unit area) of this building is higher than the world standards, which can be reduced to some extent without affecting the indoor comfort conditions. According to studies, the shortcomings of the building are significant from an energy perspective. So that the average heat transfer coefficient of the walls is 2.5 times the standard value of topic 19 and the average heat transfer coefficient of the windows is 1.7 times the standard value of topic 19. Also, the average ceiling heat transfer coefficient is 2.2 times the standard value of topic 19. By using smart canopies, the cooling and heating energy has been reduced by 12% compared to the building in the ground state. On the other hand, based on the modeling, it is determined that the total electricity consumption of the building during a year is 1074146 kWh that the panels can produce 88437 kWh during the year. Accordingly, the panels are capable of generating 15/3% of the building's electricity needs. Manuscript profile -
Open Access Article
397 - Agricultural waste utilization and efficiency in the removal of heavy metals and dyes from water and wastewater: optimal absorption studies
Mohammad Sadegh Niknam Afsaneh Shahbazi Javad FarajlouAdsorption process is proven as one of the world's best water purification technology according to its efficiencies and widespread usage. Up to now, very valuable efforts have been done to the application of municipal and industrial solid waste usage in wastewater treat MoreAdsorption process is proven as one of the world's best water purification technology according to its efficiencies and widespread usage. Up to now, very valuable efforts have been done to the application of municipal and industrial solid waste usage in wastewater treatment. The use of agricultural waste is appropriate as a low cost adsorbent, based on their effect on reducing the cost of waste disposal and on helping to protect the environment. In this study, the adsorption efficiency of various agricultural wastes in removal of hazardous pollutant, such as heavy metals and organic dyes from wastewater, have been investigated. Analyzing the respective literature, it seems that the agricultural wastes have a great potential for the removal of pollutants. The related studies about heavy metals removal showed that maximum absorption efficiency was obtained by the rice husk, green pistachio peel and orange peel with more than 99 percent efficiency, and the minimum performance occurs in the pomegranate peel with 55 percent efficiency. For dyes removal, the maximum absorption efficiency was occurred by hazelnut shell, maize stem, and pistachio shell with over than 99 percent and the minimum color removal efficiency was approximately 44 percent by removal of potato peel. Manuscript profile -
Open Access Article
398 - Bioregeneration of GAC used in the Esfahan's Mobarakeh steel factory
Saeedreza Asemizavareh Saeedeh RafatnezhadThe objective of this study is to investigate the possibility of using a microbial mix to biodegrade the chemical wastewater (mainly phenol compounds) of the Mobarakeh steel factory (Esfahan-Iran) adsorbed on granular activated carbon (GAC) and to determine the adsorpti MoreThe objective of this study is to investigate the possibility of using a microbial mix to biodegrade the chemical wastewater (mainly phenol compounds) of the Mobarakeh steel factory (Esfahan-Iran) adsorbed on granular activated carbon (GAC) and to determine the adsorption capacity of the bioregenerated GAC. The apparatus consisted of a continuous reactor made of glass with the dimensions of 43 × 29 × 50 cm (L × W × H), with continuous airing supplied by a compressor and a 24-h feeding system. The microbes were acclimated for 3 months inside the reactor under these conditions: temperature of 30 ± 1 ºC, continuous feeding with a synthetic wastewater (C12H22O11 - CO (NH2)2 - Na2HPo4 at a daily loading rate of 1000 mg COD/L day) and continuous airing by the compressor. After the acclimation period (3 months), 300 g of the used GAC is introduced into the reactor, and a 2-month period of bioregeneration is started. At the beginning of this period, the COD of the feed solution was 500 mg L-1 as in the other studies and the amounts of mixed liquor suspended solids (MLSS) was 2420 (mg L-1). The regeneration efficiency (RE) increases from 6% on day 7 of the bioregeneration process to 28% on day 53, with the MLSS increasing from 3520 mg L-1 on day 7 to 13460 mg L-1 on day 53. The results indicate that the increase of MLSS affects the regeneration efficiency of GAC. The phenol adsorption capacities of the new GAC, used GAC (without bioregeneration), bioregenerated GAC (for 7 days) and the bioregenerated GAC (for 53 days) were 90.87, 0.00, 5.06 and 26.29 mg L-1, respectively. Therefore, the adsorption capacity of the 53-day bioregenerated GAC was higher than that of the used GAC without regeneration and of the GAC bioregenerated for shorter periods (7, 14, 23, 38, 45 days). This demonstrates that the bioregenerated GAC can be recycled and used for phenol adsorption for longer periods. Manuscript profile -
Open Access Article
399 - The Study of Corrosion Inhibition of Al-pure in HCl by Some New Organic Schiff Bases Using Chemical and Electrochemical Methods
Aesha S. Patel Vidhi A. Panchal Purdi T. Trivedi Nisha K. Shah -
Open Access Article
400 - Thermodynamic Modeling and Analysis of a Novel Multi-Generation Energy System Based on Gas and Wind Turbine
R Bagheri M Soltani R Jamalpour -
Open Access Article
401 - Energy and Exergy Analysis of an Ejector-Absorption Refrigeration Cycle with Using NH3-H2O as the Working Fluids
A. Habibzadeh S. Jafarmadar M. M. Rashidi S. S. Rezaei A. Aghagoli -
Open Access Article
402 - The Relationship Between The Use Of Social Networks And Organizational Procrastination Subject Of Study: Employees Of The Islamic Revolution Mustafafan Foundation
Ali Goodarzi سمیه تاجیک اسماعیلیThe purpose of this research is to study the relationship between the amount of use of social networks and organizational negligence. This research is a description of the type of correlational studies. The survey research method, questionnaire measurement tool and info MoreThe purpose of this research is to study the relationship between the amount of use of social networks and organizational negligence. This research is a description of the type of correlational studies. The survey research method, questionnaire measurement tool and information gathering method is a combination of library and field method. The statistical population of the research is made up of employees of the headquarters of the Foundation of the Underprivileged of the Islamic Revolution who are employed in the main building of the foundation in 1401, which includes 270 people. In the field investigation, 159 people among these employees were selected and studied according to the Morgan table and using simple random sampling method. The employees in the sample completed two media consumption questionnaires and an organizational procrastination questionnaire in order to collect data. Data analysis was done through Spearman's correlation test and using SPSS. The validity of the research tool has been confirmed through face and content validity. Also, their reliability has been calculated by calculating Cronbach's alpha coefficient of 0.80. The results of the research show that the use of social networks is effective on organizational procrastination (the type of use of social networks is "positive" on employee procrastination, but the amount of use of social networks is "negative" on employee procrastination). Also, organizational procrastination components predict the use of social networks: A positive and significant relationship is observed between the use of social networks and the level of inefficiency of employees ... Manuscript profile -
Open Access Article
403 - The Relationship Between the Use of Social Networks and Organizational Procrastination Subject of Study: Employees of The Islamic Revolution
Ali Goodarzi Somayyeh Tajik EsmaeiliThe purpose of this research is to study the relationship between the amount of use of social networks and organizational negligence. This research is a description of the type of correlational studies. The survey research method, questionnaire measurement tool and info MoreThe purpose of this research is to study the relationship between the amount of use of social networks and organizational negligence. This research is a description of the type of correlational studies. The survey research method, questionnaire measurement tool and information gathering method is a combination of library and field method. The statistical population of the research is made up of employees of the headquarters of the Foundation of the Underprivileged of the Islamic Revolution who are employed in the main building of the foundation in 1401, which includes 270 people. In the field investigation, 159 people among these employees were selected and studied according to the Morgan table and using simple random sampling method. The employees in the sample completed two media consumption questionnaires and an organizational procrastination questionnaire in order to collect data. Data analysis was done through Spearman's correlation test and using SPSS. The validity of the research tool has been confirmed through face and content validity. Also, their reliability has been calculated by calculating Cronbach's alpha coefficient of 0.80. The results of the research show that the use of social networks is effective on organizational procrastination (the type of use of social networks is "positive" on employee procrastination, but the amount of use of social networks is "negative" on employee procrastination). Also, organizational procrastination components predict the use of social networks: A positive and significant relationship is observed between the use of social networks and the level of inefficiency of employees (a significant relationship is observed between the type of use of social networks and the level of inefficiency and mental anxiety of employees, but there is no significant relationship with the level of use of social networks). Manuscript profile -
Open Access Article
404 - General Efficiency Based on the Personality Type of Wrestling Coaches: with an Emphasis on Social Anxiety Intervention
Mohammad Hadi Babaei OliaiiGeneral efficiency is considered as the common belief of a group about its potentials to organize and conduct required measures to achieve a desired improvement. The purpose of the present research is to study general efficiency based on the personality type of wrestlin MoreGeneral efficiency is considered as the common belief of a group about its potentials to organize and conduct required measures to achieve a desired improvement. The purpose of the present research is to study general efficiency based on the personality type of wrestling coaches emphasizing on social anxiety intervention. In terms of purpose, this research is practical and it has a correlational-descriptive approach. The statistical population consisted of all 510 wrestling coaches in Tehran among whom 220 members were chosen by random sampling. Data collection tool involved Lina Jerabek's Social Anxiety Scale (1996), Neo's Personality Five Factor Model, and Shere's General Self-Efficiency Scale. For data analysis, regression and correlation tests as well as SPSS (version 22) were used. The research results showed that general efficiency is predictable based on social anxiety and personality type of wrestling coaches. Therefore, general efficiency can probably be effective in making social relations with the purpose of success among wrestling coaches. Manuscript profile -
Open Access Article
405 - Improving of efficient control scheme in Switched-Capacitor DC-DC Converters for ultra-low power applications
Hamid Tavana Abdolrasool Ghasemi Najmeh Cheraghi ShiraziUse appropriate compensation to zero steady-state error and improve transient response is essential part in the design of Switch Capacitor DC-DC Converter. The design of the op amp PID compensator used in the feedback circuit. The efficiency of this circuit MoreUse appropriate compensation to zero steady-state error and improve transient response is essential part in the design of Switch Capacitor DC-DC Converter. The design of the op amp PID compensator used in the feedback circuit. The efficiency of this circuit with use of active ingredients is top 98%. The simulation of this cicuits done in the 0.18µmComs Cadence.the input voltage of this circuits is 1.8V and the range of output voltage is 250mV to 900mV in 2t01 topology.Change in the load current is 0 to 40mA. Manuscript profile -
Open Access Article
406 - RFID Systems Quality Evaluation In UHF Band
Zahra Aref Darabi Mohsen AshorianIdentification by use of radio frequencies provides a tool for physical identification of objects, without the need to be checked with human eyes. The most effective factors in these systems are tags, readers, and the environment of the operation. Mounting devices for t MoreIdentification by use of radio frequencies provides a tool for physical identification of objects, without the need to be checked with human eyes. The most effective factors in these systems are tags, readers, and the environment of the operation. Mounting devices for the tags have a direct effect on the efficiency of tag operation, especially near water and metal. The goal of this article is to introduce a set of experiments for checking the quality of tags in such systems. To achieve this goal, doing experiments of the maximum distance between tag and reader that be possible to read the tag; and sensitivity to orientation and also the efficiency of tags near materials in the UHF band for evaluating and comparing the operation of tags is necessary and therefore tag's operation will be investigated in three environments: free, tag near water and metal. Manuscript profile -
Open Access Article
407 - The Effect of CEO Optimism and Myopia on Dimensions of Corporate Risk Management Moderated by CEO Political Connection and Efficiency
Javad Zanganeh majid ashrafi Ebrahim Abbassi Arash NaderianThe CEO behavioral pattern is the most important factor in decisions regarding corporate financing and capital structure composition. With the increasing competitiveness and management difficulty in highly complex organizational environments, firms (companies/organizati MoreThe CEO behavioral pattern is the most important factor in decisions regarding corporate financing and capital structure composition. With the increasing competitiveness and management difficulty in highly complex organizational environments, firms (companies/organizations) require CEOs who can identify and consider such inherent complexity in momentous decisions. Risk management constitutes a major part of this decision-making process. Therefore, this study sought to address how CEO’s optimism and myopia affect different dimensions of corporate risk management, including compliance, strategy, operation, and reporting, considering the moderating role of CEO’s political connection and efficiency. To this end, the data were collected from 130 firms listed on Tehran Stock Exchange in the 2014–2018 timeframe, and they were analyzed using multivariate regression with combined data. Results (from hypothesis testing) showed that CEO’s optimism has a negative relationship with strategy and operation, but a positive one with reporting. They also revealed that there is a negative, significant relationship between CEO’s myopia and strategy and compliance. CEO’s political connection turns negative the relationship between CEO’s optimism and operation as well as the relationship between CEO’s myopia and compliance; in addition, it has a positive effect on the relationship between CEO’s optimism and compliance and strategy, and a negative one on (the relationship with) operation. The mediating role of CEO’s efficiency is positive in the relationship between myopia and strategy and reporting, and it is negative in the relationship of myopia with operation. Manuscript profile -
Open Access Article
408 - The Impact Of Heuristic Biases In Investment Decision-Making And Perceived Market Efficiency A Survey At The Tehran Stock Exchange
Mohammad Sayrani Moharram razmjoy Raheleh SamariAfter the global crisis of 2008 and the severe fluctuations of financial markets around the world, the study of investor behavior has received more attention in the field of behavioral finance, and investors' emotions have been one of the key factors determining market MoreAfter the global crisis of 2008 and the severe fluctuations of financial markets around the world, the study of investor behavior has received more attention in the field of behavioral finance, and investors' emotions have been one of the key factors determining market movements. Behavioral finance is an evolving field that studies how and what. In this context, it seems important to study the role of emotions such as fear, greed, expectation, as well as the impact of the unconscious mind and beliefs in shaping investment decisions and its impact on market efficiency. This thesis seeks to find an important impact. The most behavioral financial concepts (or cognitive biases) such as overconfidence, stereotypes, familiarity and reliance on individual investors' decisions and market efficiency in Tehran Stock Exchange.The primary data for testing the research model was collected by distributing a structured questionnaire among 400 individual investors active in the Tehran Stock Exchange, and the data of 386 investors was used as the basis for processing. Also, structural equation modeling or partial least squares method was used for data analysis.The findings of this research show that there is a positive and significant relationship between overconfidence biases and representation with the perceived efficiency of the market and investors' decisions, as well as a negative and significant relationship between familiarity with market efficiency and investors' decisions. Yes, but the significance of the relationship between these two variables with reliance bias was not confirmed. Manuscript profile -
Open Access Article
409 - Forecasting Operational Parameters of a Solar Space Heating System using a Novel Multistage Artificial Neural Network
Farnaz Jamadi Behnam Jamali -
Open Access Article
410 - The Aerodynamic Effects of the Blade Lean on a High-Aspect-Ratio Transonic Axial Flow Rotor
Mansour Asghari Mohsen Agha Seyed Mirzabozorg Mahmood Adami -
Open Access Article
411 - Efficiency Estimation of Olefin Furnaces in Order to Provide Methods for Increasing the Efficiency
Jamaledin Binanejad Amir Homayoon Meghdadi Isfahani -
Open Access Article
412 - Experimental Study of the Effect of Variable Pitch in Indexable Cutting Tool on AISI4140 Steel Surface Finish in Milling
Behrouz Mahdikhani Mehrdad Javadi -
Open Access Article
413 - Evaluation and Comparison of Different Artificial Neural Networks and Genetic Algorithm in Analyzing a 60 MW Combined Heat and Power Cycle
parisa ghorbani Arash KarimipourThe constant growth of energy consumption, increased fuel costs, non-renewable fossil fuel sources, and environmental pollution caused by increased emission of greenhouse gases, and global warming highlight the need for the analysis and optimization of main energy gener MoreThe constant growth of energy consumption, increased fuel costs, non-renewable fossil fuel sources, and environmental pollution caused by increased emission of greenhouse gases, and global warming highlight the need for the analysis and optimization of main energy generation bases, i.e. power plants. The Artificial Neural Network (ANN) is a useful novel method for better processing information and controlling, and optimizing and modeling industrial processes. For the first time in this study, an ANN was designed and applied to data extracted from modeling and analyzing a 60 MW combined heat and power generation power plant. To this end, the error backpropagation network was selected as the optimal network, and the generator load or capacity, condenser pressure, and Feedwater temperature were considered inputs to the ANN. The energy and exergy efficiencies of the power plant and the overall energy and exergy losses of the cycle were considered outputs of the ANN. The ANN was coded and designed with the help of MATLAB. The Genetic Algorithm (GA) was used to obtain the optimal values of input parameters and the minimum losses and maximum efficiencies based on the first and second laws of thermodynamics. Manuscript profile -
Open Access Article
414 - Multi-Objective Optimization of Plate Heat Exchangers by Employing an Imperialist Competitive Algorithm
Mohammadjavad Mahmoodabadi Soodeh Zarnegar -
Open Access Article
415 - Nano-encapsulation of thyme essential oil in chitosan-Arabic gum system: evaluation of its antioxidant and antimicrobial properties
Maryam Hassani Shirin Hasani -
Open Access Article
416 - Analysis of Sustainable Urban Development Indicators on Urban Neighborhood Performance (Case Study: Bonab City Neighborhoods)
Azadeh Arbabi Sabzevari HAMED ALEESMAEILIntroduction: Cities are considered to be the main cause of instability in the world, and following the change in urban development and development factors, the discussion of sustainability and sustainable development regardless of residential neighborhoods and uncerta MoreIntroduction: Cities are considered to be the main cause of instability in the world, and following the change in urban development and development factors, the discussion of sustainability and sustainable development regardless of residential neighborhoods and uncertain urbanization will be. Objectives: The purpose of this study is to analyze the indicators of sustainable urban development on the performance of Bonab neighborhoods. Methods:. The present article is a descriptive-analytical in terms of practical purpose and is a descriptive-analytical method for examining the criteria of sustainable urban development in the form of three selected indicators and 57 sub-indicators of urban sustainable development. For information analysis, Pearson correlation coefficients, multivariate regression, data cover analysis, cross -performance, sensitivity analysis, and SPSS and dea Slover software have been used. Results and Discussion: The results of this study showed that due to the input indicators and output of sustainable urban development of 8 neighborhoods (4, 5, 6, 7, 9, 10, 11, 13), with an efficiency less than one percent As an inefficient neighborhoods and 5 neighborhoods (1, 2, 3, 6, 8), they are recognized as an efficient unit in terms of sustainable urban development indicators. One of the most important factors in neighborhoods is a great use of inputs against the production of small outputs. Conclusion: Inappropriate spatial distribution of urban activities and facilities and services across the city, the life of the livestock, the inconsistencies between the organs and organizations associated with the planning in the city of Bonab, and the lack of optimal use of factors. That is the difference in the performance of neighborhoods. In the meantime, inefficient neighborhoods must change their input indicators to move towards sustainable urban development. Conclusion: Inappropriate spatial distribution of urban activities and facilities and services across the city, the life of the livestock, the inconsistencies between the organs and organizations associated with the planning in the city of Bonab, and the lack of optimal use of factors. That is the difference in the performance of neighborhoods. In the meantime, inefficient neighborhoods must change their input indicators to move towards sustainable urban development. Manuscript profile -
Open Access Article
417 - Effect of Different methods performance of cooperative learning on students general self- efficiency
محمد عظیمی قربان کیانی یوسف ادیب موسی پیریThe purpose of recent research was to compare the effect of cooperative learning patterns on learner’s self- efficiency in “Religion and life” of the trade school in second grade students. The statistics of this quasi-empirical research were trade scho MoreThe purpose of recent research was to compare the effect of cooperative learning patterns on learner’s self- efficiency in “Religion and life” of the trade school in second grade students. The statistics of this quasi-empirical research were trade schools’ pupils of Ardebil second region. A trade school was selected by multi-steps cluster random sampling and then two experimental groups and one control group was selected. There were 76 participants in this research: 27participants in the group research, 26 participants in jigsaw, and 23 participants in lecturer. The data instruments were the general self- efficiency test “sherer, 1987”. The validity of this research was shown by the confirmed factorial analysis and its validity was obtained 0.74 by Cranach alpha. Data analysis was done in two descriptive and inference statistics levels by Spss. MONOVA test results showed that the group research method and Jigsaw effectively increased pupils’ self -efficiency in comparison with the traditional education. Also LSD showed this method has a meaningful effect on self- efficiency and its related measures in comparison with the lecturer method. Manuscript profile -
Open Access Article
418 - Designing an Model for Examining the Factors influencing the Perceived Efficiency Relationship between Student- Teacher in Smart Schools
محمد حسین یارمحمدیان فرهاد شفیع پور مطلقThis study investigated factors influencing the development of perceived Efficiency Relationship between student and teacher in Smart Schools. All smart school teachers in Tehran in 1388-1390 were considered as study population. The Methodology of this research is corre MoreThis study investigated factors influencing the development of perceived Efficiency Relationship between student and teacher in Smart Schools. All smart school teachers in Tehran in 1388-1390 were considered as study population. The Methodology of this research is correlation, kind of descriptive studies. Three researchers made Questionnaires (such as factors influencing perceived Efficiency Relationship between Student- Teacher (α=0/92), Motivation of the learning by student (α=0/89), and Efficiency Relationship (α=0/86)) have been used. The results show that the direct effect of Variables such as motivation of learning by students (0/33), empathy in relationship (0/36), and indirect effect (0/12), the direct effect of open in relationship (0/27), and indirect effect (0/16), the direct effect of supportive relationship (0/28), and indirect effect (0/07), the direct effect of positive relationship (0/56), and indirect effect (0/07) are significance. Based on the finding of this study: Chi-Square=224/325, df=3, GFI=0/95, AGFI=0/85, RMSEA=0/381. Therefore, the acceptable level of the model is appropriate. Manuscript profile -
Open Access Article
419 - investigate promotion ways of educational courses for naja students in 1393-94
hassan khalili zohreh saadatmand MOKHTAR DERAKHSHANAbstract The present study aimed to investigate promotion ways of educational courses for naja students in 1393-94 which was done by descriptive explanatory method. The population included 460 participants of Ansarol Mahdi participated in this researched complex loca MoreAbstract The present study aimed to investigate promotion ways of educational courses for naja students in 1393-94 which was done by descriptive explanatory method. The population included 460 participants of Ansarol Mahdi participated in this researched complex located in police station in Isfahan to participate in such research randoms sampling method was applied in accidentally to select 210 people. Data collecting tool included researcher made questionaire focousing on(needs analysis, educational aims,essence, recreational facilities,evaluation) to specify the dimensions of efficiency promotion,face validity was used and to specify its reliability Cronbach Alpha coefficient was applied which its reliability was 94%. data analysis was done in 21 levels including descriptive statistics and inferential statistics Data analysis result showed from 6 related to educational efficiency, the average of participants responses were more than its estimated level and it was Considered significant (p<001) recreational factor with an average of 4.53 was Considered the highest and educational needs analysis showed its lowest average at 2.77 Also,Elements of needs analysis based on staffs professional missions with educational goals based on staffs professional missions with an average of 3.95. representation of educational input based on the latest Scientific developments with an average of 4.05.employment of Ethical and experienced managers to hold courses with an average of 4.12. complete separation of staffs an average of 4.22 and evaluation of instructors based on participants survey with an average of 4.05 showed the highest. among participants responses based on demographic Element,no significant difference was noticed. Manuscript profile -
Open Access Article
420 - Efficiency of instruction based on the effects of cognitive load on the experimental sciences Case Study: experimental science of elementary third grade
Ali AbdiThis research was conducted with the aim of to investigate the efficiency of teaching based on the effects of cognitive load on the experimental science of elementary third grade. A quasi-experimental research design was utilized. The statistical population of this stud MoreThis research was conducted with the aim of to investigate the efficiency of teaching based on the effects of cognitive load on the experimental science of elementary third grade. A quasi-experimental research design was utilized. The statistical population of this study included all female students of Kermanshah's 3rd elementary school in the academic year of 2017-2018. Two classes were selected using available sampling (Experimental N = 39 and Control N =38). In the control group, traditionally, students learned the lessons, and in the experimental and in the experimental group, students were presented content based on the cognitive load effects (Worked Example Effect and Completion Problem Effect, Attention Split Effect, Modality Effect, Redundancy effect). The efficiency of educational program was evaluated by a test of academic achievement in sciences and the one item Subjective Rating Scale (SRS) developed by Paas and Van Merrienboer (1993) was used to measure stu-dents’ cognitive load for both experimental and control group students. Confirmation of the validity of the academic achievement tool was based on the content validity and opinion of the experts and its reliability was done in the Richardson 21 method, which was 0.91 in the pre-test and 0.72 in the post-test. To analyze the statistical data, statistical descriptive statistics and inferential statistics including multivariate analysis of covariance (MANCOVA), z score and independent t-test were used by SPSS software version 22.used. The results showed that there is a significant difference between the two methods of teaching based on the effects of cognitive load and traditional method in terms of efficiency (p <0.001), which means that the academic achievement level of students who through the educational program Trained cognitive effects were higher than those trained by conventional and conventional teaching methods. Also, students in the experimental group experienced a lower cognitive load of control group students. Manuscript profile -
Open Access Article
421 - Investigating the Implementation Barriers of the Fundamental Evolution Education Document Based on the Fullan Model:Case study of the field of aesthetic and artistic education
Fatemeh Sadat Bitarafan Marjan Sojoodi marziye dehghaniThe main purpose of this study is to identify the administrative barriers in the field of aesthetic and artistic education of the Fundamental Evolution Document in education, based on the Fullan model (2007). The field of artistic education has been forgotten and neglec MoreThe main purpose of this study is to identify the administrative barriers in the field of aesthetic and artistic education of the Fundamental Evolution Document in education, based on the Fullan model (2007). The field of artistic education has been forgotten and neglected, despite the tremendous impact it can have on morale and, consequently, on the learning of learners and even their educators.This research project is the "combined" type (simultaneous test). The study population included two independent groups of curriculum and education specialists (in the qualitative section) as well as primary school teachers (in the quantitative section). The sample size includes 12 curriculum and education specialists and 120 primary school teachers .The sampling method in the first part (qualitative) is theoretical and purposeful method and its tools include semi-constructed and unstructured interview and in the second part (quantitative) it is "purposeful and preferable" and the research tool includes a 30 questions researcher-made questionnaire. Quantitative data analysis involves the Wilcoxon single-sample and Friedman tests to rank the Barriers to the implementation of the Fundamental Evolution Document based on the components of the Fullen model. Qualitative data analysis was also performed using the seven-step )Colaizzi, 1987) method. The results of the study confirm the gap between the designers of the Evolution Document and its implementers in schools, which, in addition to other existing administrative barriers,contributes to the inefficiency of the Fundamental Evolution Document in the implementation phase. Manuscript profile -
Open Access Article
422 - A new structure for microchip capillary electrophoresis with high velocity and resolution and efficiency
Seyyedeh Sepideh Taheri Otaghsara Bahram Azizollah Ganji Morteza Fathipur -
Open Access Article
423 - Efficient Modified-LEACH Protocol for Enhancing WSNs’ Lifetime
Mehdi Masoodi Mohsen Maesoumi Ehsan Akbari Sekehravani -
Open Access Article
424 - Improvement of Energy, Lifetime and Delays in Underwater Wireless Sensor Networks by Effective Deployment of Relay Nodes
Reyhane Zehtabzadeh Reza Gholamrezayi -
Open Access Article
425 - High Resolution Nano Temperature Sensor Based on Two-Dimensional Photonic Crystal
Pardis Kazemi Esfeh Zahra Alaei -
Open Access Article
426 - An Iterative Method for ASC Hybrid Precoding Structure for mmWave Ma-MIMO Systems
Amirreza Moradi Kamal Mohamed-pour Nasim Jafari Farsani -
Open Access Article
427 - Design and Simulation of Wideband High-Efficiency X-band MMIC Power Amplifier based on GaN HEMT Technology
Reza Sahragard shahrakht Mehdi Forouzanfar Abolfazl Bijari -
Open Access Article
428 - Optimal Location of the Intermediate Band Gap Energy in the Intermediate Band Solar Cell
Mohammad Ershadi -
Open Access Article
429 - Increasing Spectral Efficiency of GFDM with Adaptive Modulation and Coding for Next Generation Cellular Networks
Farzaneh Kheirali Mohammad Hossein Madani -
Open Access Article
430 - The Effect Of RibOflavin on Growth and Immune Parameters OfAcipenser nudiventris
Alireza Ashouri Mir Hamed Saiyed Hassani Esmaiel HosseinniaInroduction and Objective:In this study, effects of different riboflavin level were investigated on growth rate and Immune parameters of Acipensernudiventris were investigated.Material and Methods:A total of 120 juvenile Acipensernudiventris with initial weight (30.6±1. MoreInroduction and Objective:In this study, effects of different riboflavin level were investigated on growth rate and Immune parameters of Acipensernudiventris were investigated.Material and Methods:A total of 120 juvenile Acipensernudiventris with initial weight (30.6±1.28 SD) were fed to saturation by 4 diet contained (protein: 49%, lipid: 14% and energy 21.1 Mj/kg) that were supplemented by riboflavin (0, 15, 20 and 25 mg/ kg) so called RB0, RB15, RB20 and RB25 in 8 weeks. Biometey were carried out in of 15 days interval. In the end of experiment, blood samples were collected from fish and transported to laboratory for some immune system parameters analysis.Results: Riboflavin supplemented in diet caused a significant increase in final weight compared with control (P20 were significantly higher than other treatment and fish belonged this treatment had highest protein efficiency ratio (PER) and lowest feed efficiency ratio (FCR) (P50 in fish fed RB20 were priority than control group (PConclusion: The result of this study indicated that supplementation of riboflavin in diet have benefit effect on Acipensernudiventris juvenile growth and immune parameters. Manuscript profile -
Open Access Article
431 - A Two Input High Step Converter with Zero Current Switching Condition for Switches Turn-On Instances
Mahmood Vesali Hosein Ranjbar Amin Motamedi-NasabA high step-up two-inputs DC-DC converter is presented in this paper. The soft switching condition is provided for switch in turn on instant, so the converter efficiency is high. Due to the fact that only the capacitor is used to increase the voltage gain and there are MoreA high step-up two-inputs DC-DC converter is presented in this paper. The soft switching condition is provided for switch in turn on instant, so the converter efficiency is high. Due to the fact that only the capacitor is used to increase the voltage gain and there are no coupled inductors in the converter, the input current of the converter is continuous. The technique used to increase gain can be used with more stages to achieve higher voltage gain. The converter can also be used as a single input intertwined instead of two inputs, which in this case the input current ripple is reduced. The voltage stress on the switches is lower than the output voltage, so lower voltage switches can be used, which reduces the converter cost. The proposed converter is completely analyzed and in order to prove the theoretical results, a simulation is performed on the converter at 500 watts. The results of the simulation at full load show an efficiency of about 95.5%. Manuscript profile -
Open Access Article
432 - Providing a Dual-Input Soft-Switching Boost Converter with Power Factor Correction Capability
Mohammad Reza Amini Mohammad Foroughi Ehsan Adib Mohammad Rouhollah YazdaniMulti-input converters have different structures. These converters can be used in applications of power systems based on wind, photovoltaic, hybrid vehicles, etc. In a multi-input system, usually one of the inputs is connected to an AC source. Also, these converters use MoreMulti-input converters have different structures. These converters can be used in applications of power systems based on wind, photovoltaic, hybrid vehicles, etc. In a multi-input system, usually one of the inputs is connected to an AC source. Also, these converters use soft switching techniques to increase efficiency. In this paper, a non-insulated dual input soft-switching boost converter with power factor correction capability is proposed. This converter uses only an auxiliary circuit with simple operation. The operation modes of the proposed converter are described. All of the semiconductor elements in this converter turn on and off in soft switching conditions. The proposed controller circuit is presented with power factor correction capability. The converter is simulated with PSIM and THD and PF shows that the power factor correction in AC input is occurred correctly. The efficiency of the proposed converter is increased in comparison with the multi-input hard switching converter under the same conditions. The simulation results with PSpice for a 200-watt prototype converter confirm the theoretical analysis. Manuscript profile -
Open Access Article
433 - An Isolated Bidirectional Converter with Zero Current Switching for Photovoltaic Applications
Abdulrahman Salim Babak KeyvaniIn this paper, a new isolated bidirectional converter is presented so that by using a new snubber without any additional switch, soft switching is provided for both main switches and the energy of the snubber circuit is transferred to the output. The number of proposed MoreIn this paper, a new isolated bidirectional converter is presented so that by using a new snubber without any additional switch, soft switching is provided for both main switches and the energy of the snubber circuit is transferred to the output. The number of proposed converter elements is low and its control is very simple because only one switc5h operates on each side and the other switch does not take command signal. One of its features is not using separate inductors in the snubber circuit and using the third coil for the snubber circuit. The performance of the proposed converter has been fully analyzed and simulated in PSPICE software, the results of which confirm the theoretical analysis of the converter. On the other hand, an 80W prototype has been made from it, and its practical results have been presented. Manuscript profile -
Open Access Article
434 - Experimental Investigation of the Pulse and Plasma Flushing Efficiency in Electrical Discharge Machining
H Eivazi-Bagheri M.R Shabgard -
Open Access Article
435 - Measuring the Efficiency and Ranking of Photocatalytic Degradation of Azo dye AR 206 and COD Using Data Envelopment Analysis
Hossein Dibachi -
Open Access Article
436 - Measurement of Inefficiency Slacks in Network Data Envelopment Analysis
حسین عزیزی علیرضا امیرتیموری سهراب کردرستمی -
Open Access Article
437 - Interval Economic Efficiency Measures in Data Envelopment Analysis
Amin Mostafaee -
Open Access Article
438 - Data envelopment analysis with imprecise data revisited
Mohammad Izadikhah Dimitris K. Despotis -
Open Access Article
439 - Imprecise Revenue Efficiency under Productivity Change
Mohsen Rostamy-Malkhalifeh -
Open Access Article
440 - Super-Efficiency and Sensitivity Analysis in DEA for the Case of Exogenously Fixed Inputs
Mehrab Esmaeili -
Open Access Article
441 - A Chance-Constrained DEA Model with Random Input and Output Data:Considering Maintenance Groups of Iranian Aluminum Company
Mohammad Izadikhah Mohammad Ehsanifar Saman Malekian -
Open Access Article
442 - Improving the Banks Shareholder Long Term Values by Using Data Envelopment Analysis Model
Mohammad Izadikhah -
Open Access Article
443 - Reduction of DEA-Performance Factors Using Rough Set Theory: An Application of Companies in the Iranian Stock Exchange
Mahnaz Mirbolouki Maryam Joulaei -
Open Access Article
444 - Financial Assessment of Banks and Financial Institutes in Stock Exchange by Means of an Enhanced Two stage DEA Model
Mohammad Izadikhah -
Open Access Article
445 - Ranking the Efficiency and Soundness of Business Banks Using a Combined Method of Data Envelopment Analysis and Fuzzy VIKOR
Manouchehr Khorramin Ghodrat Allah Talebnia Mohammad Hossein Ranjbar Ali Amiri -
Open Access Article
446 - Designing A Mixed System of Network DEA for Evaluating the Efficiency of Branches of Commercial Banks in Iran
Sajad Akbari Jafar heydari Mohammadali Keramati Abbas Keramati -
Open Access Article
447 - Estimating Efficiency of Bank Branches by Dynamic Network Data Envelopment Analysis and Artificial Neural Network
Javad Niknafs Mohammad Ali Keramati Jalal Haghighatmonfared -
Open Access Article
448 - The Mediating Effect of Information Asymmetry and Agency Costs on the Relationship Between CSR and Investment Efficiency
Rohollah Arab Mohammad Gholamrezapoor Elyas Toraj -
Open Access Article
449 - Cost Malmquist Productivity index in non competitive environment of price in Data Envelopment Analysis and the use of it in the dealings of the Iranian Stock Exchange
Elham Rezaei hezaveh Reza Fallahnejad -
Open Access Article
450 - Analyzing the efficiency of capital market relative to the decreas-ing and increasing information of the components of accounting earnings
Leila Lak Allah Karam Salehi Mehdi Basirat Ahmad Kaab Omeir -
Open Access Article
451 - Measuring the Interval industry cost efficiency score in DEA
Ghasem Tohidi Simin Tohidnia -
Open Access Article
452 - Predicting Stock Price Crash Risk with a Deep Learning Approach from Artificial Intelligence and Comparing its Efficiency with Classical Predicting Methods.
Meysam Rahmati Ehsan Taieby SaniPurpose of this research is Predicting Stock Price Crash Risk with a Deep Learning Approach from Artificial Intelligence and Comparing its Efficiency with Classical Predicting Methods. This research is post-event correlation type and practical in terms of purpose. The r MorePurpose of this research is Predicting Stock Price Crash Risk with a Deep Learning Approach from Artificial Intelligence and Comparing its Efficiency with Classical Predicting Methods. This research is post-event correlation type and practical in terms of purpose. The research data were extracted from the website of the Stock Exchange Organization and Codal website. The risk variable of crashing stock prices was introduced as a predictor. 3200 obser-vations were obtained from 10-year data of 320 companies between 2012 and 2021. In the following, 29 variables were identified as variables that can affect the risk of crashing stock prices. Statistical methods such as unit root test, composite data, Hausman test and variance heterogeneity test were used. Next, the top 10 algorithms in the field of deep learning were selected and used to model the mentioned variables with the CNN method. Python, Eviews and Excel software were used in this research. Examining the performance of different deep learning algorithms shows that the convolutional neural network method performs better compared to other algorithms and can improve the prediction accuracy. Therefore, it is suggested to use this algorithm in reviewing econometric data and especially predicting the risk of crashing stock prices. Manuscript profile -
Open Access Article
453 - An Investigation into the Effect of CEO’s Perceptual Biases on Investment Efficiency and Financing Constraints of the Iranian Listed Firms
Hajar Fallah Mohsen Hamidiyan Nurooz Noroolahzadeh -
Open Access Article
454 - The efficiency of innovative techniques in improving new and traditional standards of corporates’ performance
Kianoosh Mansourkhani Majid Zanjirdar Majid Davoudi Nasr Mohammad IzadikhahInnovation is one of the basic tools of growth strategies to enter new markets, increase market share and create a competitive advantage. The purpose of this study is to evaluate the efficiency of innovative techniques in improving new and traditional criteria of ICT fi MoreInnovation is one of the basic tools of growth strategies to enter new markets, increase market share and create a competitive advantage. The purpose of this study is to evaluate the efficiency of innovative techniques in improving new and traditional criteria of ICT field companies’ performance during the years 2013 to 2017. Based on this goal, the research was conducted qualitatively and quantitatively. Based on Cochran sampling, 8 companies were selected as a statistical sample. In the first phase, to identify and determine the centers of decision-making units, inputs and outputs of the departments through Delphi method, distribution of questionnaires and aggregation of opinions of individuals and in in the second phase, the classification of model inputs and outputs and weighting of parameters by Delphi method and network analysis process method, and in the third phase of the research, the efficiency of innovative techniques in improving new and traditional performance criteria of ICT fieldcompanies is investigated. According to the results of the present study and in general among 8 sample companies, the first rank of efficiency is awarded to Iran Arqam Company and the 8th rank is awarded to Iran Telecommunication. Manuscript profile -
Open Access Article
455 - Common Set of Weights Model in the Presence of Non-homogeneous Outputs
Mahnaz Ahadzadeh Namin Elaheh Khamseh -
Open Access Article
456 - DEA Approaches for Financial Evaluation - A Literature Review
Mohammad Izadikhah -
Open Access Article
457 - Efficiency Analysis of Banking Sector in Presence of Undesirable Factors Using Data Envelopment Analysis
Fatemeh Bozorgi Gerdvisheh Mansour Soufi Alireza Amirteimoori Mahdi Homayounfar -
Open Access Article
458 - The sustainability radius of the cost efficiency in Interval Data Envelopment Analysis: A case study from Tehran Stocks
Esmaeil Mombini Mohsen Rostamy-Malkhalifeh Mansour Saraj -
Open Access Article
459 - Identify and Rank the Effective Factors of Financial Risks and Efficiency in Insurance Companies Listed on the Stock Exchange using the Delphi Method
Marzieh Ahmadi Saied Sehhat Maryam khaliliaraghi Hashem Nikoumaram -
Open Access Article
460 - Patterning Mergers and Acquisitions by Network Data Envelopment Analysis in the Iranian Insurance Companies
Elham Sadeghi Mohsen Rostamy-Malkhalifeh Mohammad Reza Miri Lavasani mohammad hamed khan mohammadiOne of the most important factors of the development of an economy is the mergers or acquisitions (M&A) at the level of its active companies such as insurance companies. The main purpose of this study is to examine the efficiency of merger and acquisition before doi MoreOne of the most important factors of the development of an economy is the mergers or acquisitions (M&A) at the level of its active companies such as insurance companies. The main purpose of this study is to examine the efficiency of merger and acquisition before doing this process in the insurance industry using network data envelopment analysis and can select the companies that potentially facilitate achieving the purposes of the merger and acquisition process and improve of this action. For this purpose, in this study, first the efficiency of 20 insurance companies was measured through the Modified Slack-Based Measure (MSBM) in the two-stage data envelopment analysis approach during three years 2017, 2018 and 2019. Then, considering the calculated efficiency, Asia Insurance Company, Parsian, Dey, Pasargad, Kowsar and Taavon, which have had efficient performance in the last three years, were excluded from the calculations and other companies were selected for M&A . After ensuring that no monopoly is considered via Herfindahl- Hirschman Index, M&A is performed and then the overall efficiency was measured and it was divided into three parts: technical, harmony and scale. The results showed that the two consolidations Dana-Mihan and Dana-Sina had the best efficiency and the three consolidations Alborz-Mellat, Sina-Arman and Sina-Sarmad had the lowest efficiency and potential for the highest improvement. Calculations also showed that if the scale effect in the composition is greater than 1, then the coordination effect is smaller than 1 and the inverse relationship are not necessarily satisfied. Manuscript profile -
Open Access Article
461 - Ranking and evaluation of financial efficiency of pharmaceutical companies accepted in Tehran Stock Exchange with the approach of data envelopment analysis and multi-criteria decision making
saba salimi Mohsen Shahriari -
Open Access Article
462 - Stock Liquidity and Return Predictability; Is There a Connec-tion? (Evidence from an Emerging Market)
Mojtaba Alifamian Ali Eshaghzade Abdolkarim Maleknia -
Open Access Article
463 - The role of effective variables on the relationship between tax avoidance and investment efficiency
Nazanin Bashirimanesh Zohreh Arefmanesh -
Open Access Article
464 - Applying the ELECTRE Method to Determine the Effects of Calendar Anomalies on the Index Returns of Banks Listed on the Tehran Stock Exchange
sahand Vahabi Bahareh Banitalebi DehkordiIn today's world, financial markets, as the main arteries of any country's economic system, have created an attractive environment for investors, and therefore it is necessary to identify the behavior of investors in this space and variables affecting prices and stock r MoreIn today's world, financial markets, as the main arteries of any country's economic system, have created an attractive environment for investors, and therefore it is necessary to identify the behavior of investors in this space and variables affecting prices and stock returns in these markets. The purpose of this study is to use the method of random dominance analysis and electrification technique as a new method in financial research to investigate the effect of calendar anomalies on the index returns of banks listed on the Tehran Stock Exchange in the period 2016-2020. Findings show that according to the three main hypotheses that there is a significant difference between the returns of the banking industry index on Saturdays to Wednesdays, in the first, second, third and fourth weeks of each month and in the months of April to March based on accuracy Market efficiency assumptions were formulated, all three hypotheses were rejected. It was also found that Wednesdays and the second weeks of each month are the best time to invest in the banking sector. In addition, June is the best and March is the most unsuitable month of the year to invest in this field. Manuscript profile -
Open Access Article
465 - Investigating the Market Efficiency in Tehran Stock Exchange through Artificial Intelligence
mohammad jouzbarkand Hossein Panahian -
Open Access Article
466 - Computing the Efficiency of Bank Branches with Financial Indexes, an Application of Data Envelopment Analysis (DEA) and Big Data
Fahimeh Jabbari-Moghadam Farhad Hosseinzadeh Lotfi Mohsen Rostamy-Malkhalifeh Masoud Sanei Bijan Rahmani-ParchkolaeiIn traditional Data Envelopment Analysis (DEA) techniques, in order to calculate the efficiency or performance score, for each decision-making unit (DMU), specific and individual DEA models are designed and resolved. When the number of DMUs are immense, due to an increa MoreIn traditional Data Envelopment Analysis (DEA) techniques, in order to calculate the efficiency or performance score, for each decision-making unit (DMU), specific and individual DEA models are designed and resolved. When the number of DMUs are immense, due to an increase in complications, the skewed or outdated, calculating methods to compute efficiency, ranking and …. may not prove to be economical. The key objective of the proposed algorithm is to segregate the efficient units from that of the other units. In order to gain access to this objective, effectual indexes were created; and taken to assist, in regards the DEA concepts and the type of business (under study), to survey the indexes, which were relatively operative. Subsequently, with the help of one of the clustering techniques and the ‘concept of dominance’, the efficient units were absolved from the inefficient ones and a DEA model was developed from an aggregate of the efficient units. By eliminating the inefficient units, the number of units which played a role in the construction of a DEA model, diminished. As a result, the speed of the computational process of the scores related to the efficient units increased. The algorithm designed to measure the various branches of one of the mercantile banks of Iran with financial indexes was implemented; resulting in the fact that, the algorithm has the capacity of gaining expansion towards big data. Manuscript profile -
Open Access Article
467 - Assessment of the efficiency of banks accepted in Tehran Stock Exchange using the data envelopment analysis technique
Mehdi Esfandiar Mahmood Saremi Hossein Jahangiri Nia -
Open Access Article
468 - The Managerial Ability and Value of Cash: Evidence from Iran
Saeid Aliahmadi Ali Jamshidi Rasoul Mousavi -
Open Access Article
469 - Investigating the Effect of Financial Constraints and Different Levels of Agency Cost on Investment Efficiency
Mahdi Agah Hossein Malekpoor Arman Bagheri -
Open Access Article
470 - Performance Analysis and Rating of Insurance Companies Using DEA in Iran Capital Market
Mahboubeh Jafari Maryam Mousavi -
Open Access Article
471 - The Relationship Between Non-Transparent Financial Reporting and Risk Stock Futures Fall Due to the Size and Performance
Saeid Khalajestani Alireza Farshidpour -
Open Access Article
472 - The Impact of Investment Inefficiency and Cash Holding on CEO Turnover
Masoud Taherinia -
Open Access Article
473 - The Role of Social Interest Rate Risk Management in the Relationship between Sustainability Performance and Investment Efficiency
Hamzeh Asgari Rashtiani Fazel Mohammadi Nodeh Sina Kheradyar Farzin Rezaei -
Open Access Article
474 - Study the economic efficiency of biological control of date palm pests
m. latifiyanThe aim of this study was to the economic assess of biological control application approach in important date pests biological control. The model used in this research was Pemberton model. Based on the model findings and taking into account the net return on inves MoreThe aim of this study was to the economic assess of biological control application approach in important date pests biological control. The model used in this research was Pemberton model. Based on the model findings and taking into account the net return on investment and total expenditure that carried out over a period of 18 years, the rate of returns on investment for biological control of spider mite the lesser, the and long horned beetle of date were 61.9, 29.4 and 16.8 respectively. The net profit to expense ratio for biological control of important pests was more than one, so that the bill of two pre-release periods (the first 9 years) and the post-release period (the second nine years) were estimated at 92.6, 35.2 and 22.5 trillion Rials were for Spider mite, the lesser moth and horned beetles, respectively. s. Economic factor is an important factor in the planning of biological control of date pests. According to the research results supporting biological pest control programs, and its successful implementation requires, knowledge managers, planners, investors and operators with economic benefits of investment in this area. From the perspective of economic experts is an important factor, according to the financial resources needed to support the elimination of pesticides to control pests biologically important dates assigned. The government can minimized the price risk of a date palm pest biological control agents by manufacturers guarantee to dates. Manuscript profile -
Open Access Article
475 - Study on the effects of spatial distribution and density of the parasitoid Anagrus atomus L. (Hym., Mymaridae) on its searching efficiency on garpe leafhopper eggs Arboridia kermanshah Delabola (Hem.,
M. Latifian E. Soleyman-NejadianArboridia Kermanshah Delabola (Hem., Cicadellidae) is a dominant species of leafhoppers in vineyards of Isfahan, central region of Iran. The most abundant parasitoid of the leafhopper is Anagrus atomus in the region. This research was conducted to study the effects of t MoreArboridia Kermanshah Delabola (Hem., Cicadellidae) is a dominant species of leafhoppers in vineyards of Isfahan, central region of Iran. The most abundant parasitoid of the leafhopper is Anagrus atomus in the region. This research was conducted to study the effects of the spatial distribution and density of the parasitoid and host on searching efficiency of parasitoid and parasitoid-host stability. Results showed a significant difference between host and parasitoid distribution on arms of vine trees. The highest density of parasitized and non-parasitized eggs of the leafhopper eggs were observed on leaves 7-12 in the middle of each vine arm. There was a significant density dependent relationship between host and parasitoid. Studying on the host and parasitoid density relationship showed that a high searching efficiency was observed in the first generation of host when the parasitoid density is low. The parasitoid searching efficiency was decreased by increasing the parasitoid density. When the parasitoid was leaving vineyard for wintering, the searching efficiency increased with decreasing in number of parasitoid. Interference coefficient (m) was higher when the parasitoid-host ratio was high and the searching efficiency decreased in this condition. The value of m was close to Q (searching constant) when the parasitoid-host ratio was high and host- parasitoid relationship was more unstable. Manuscript profile -
Open Access Article
476 - Fauna of cereal aphids and their coccinellid predators and investigation on the efficiency and population dynamics of the dominant species in Kurdistan province
S. Kamangar S. H. MalkeshiWheat as the most important crop in Kurdistan province has several pests including aphids. The coccinellids have a fundamental role in controlling aphids. In this research, cereal aphid species and their coccinellid predators were identified and the efficiency and popul MoreWheat as the most important crop in Kurdistan province has several pests including aphids. The coccinellids have a fundamental role in controlling aphids. In this research, cereal aphid species and their coccinellid predators were identified and the efficiency and population dynamics of the most abundant species of coccinellids were studied during 2001-2003. Three irrigated wheat fields in Dehgolan and Kamyaran, and one rain fed field in Marivan were selected. Samples were taken weekly and the aphid species were counted in laboratory and the occurrence frequency of each species was recorded. Adult coccinellids were collected by random sweep netting and their relative occurrence was recorded. As results, 7 aphid species were identified which Sitobion avenae F. and Schizaphis graminum Rond. with respectively 66.5 and 30%, have the highest population densities. Also 6 coccinellid species were identified which Hippodamia variegata Goeze and Coccinella septempunctata L. with respectively 60 and 37%, have the highest population densities. Results showed that H. variegata as the most abundant coccinellid species in wheat fields was not able to control the aphids significantly (under this experimental condition) due to very fast reproduction of aphids and in absence of other natural enemies. Therefore, cereal aphids can be controlled by the presence and activities of their natural enemies complex. Manuscript profile -
Open Access Article
477 - Combating Climate Change: The Role of Renewable Energy and Energy Efficiency
E. Uyigue O. A. Ediang A. A. EdiangClimate change and its possible impacts on the environment and socio-economic systems now constitute the most important environmental problem facing mankind in the 21st century. Climate change will increase poverty and hardship, endanger food security, destabilize econo MoreClimate change and its possible impacts on the environment and socio-economic systems now constitute the most important environmental problem facing mankind in the 21st century. Climate change will increase poverty and hardship, endanger food security, destabilize economies, decrease food and water and create social insecurity in many countries and undermine our goals for achieving sustainable development. An in-depth analysis was carried out on the nature and characteristics of climatic changes and the roles of renewable energy and energy efficiency in combating the threat of climate change especially in relation to mitigation measures. Energy policy is therefore becoming an increasingly important tool for medium and long term planning to mitigate GHG emissions and to adapt to climate change especially in the developing countries. This paper highlights the fact that research efforts for the rest of the 21st century be directed towards harnessing renewable energies like the solar, wind and geothermal energies to replace the present day burning of fossil fuel energy for lighting, heating, cooling, manufacturing, cooking, transport, entertainment, etc. This will help to reduce the emission of green house gases (GHGs) and ozone depletion and in the long run the global warming effect. Manuscript profile -
Open Access Article
478 - Ecological and Economic Effects of Land Equipping and Renovation in Irrigated Wheat Production in Hamadan Province
Mohammad Abdolmaleky Fereshteh YazdaniThe main purpose of this study was to investigate the ecological and economic effects of the land equipping and renovation plan in the irrigated wheat production. Therefore, the environmental sustainability of wheat production by the ecological footprint and its product MoreThe main purpose of this study was to investigate the ecological and economic effects of the land equipping and renovation plan in the irrigated wheat production. Therefore, the environmental sustainability of wheat production by the ecological footprint and its production efficiency by data envelopment analysis were measured. The statistical population consisted of wheat farmers from Kheradmand village in the Hamadan province, who have participated in the land equipping and renovation plan and who hadn't participated. The sample size for the participating farmers is 73 and for the non-participating farmers is 74. Data were collected through a questionnaire in a cross-sectional study, using of census method, and were analyzed with SPSS26 and DEAP2.1 software. The average GHG for participant and non-participant farmers in the land reform plan was measured at 778/15 and 1003 kg co2 eq ha-1, respectively. The EF index for these two groups was estimated at 2.39 and 2.44 gha, respectively which there was a significant difference at the 0/01 level. Based on the results of data envelopment analysis, average technical, allocation and economic efficiency were estimated at 0.866, 0.893, and 0.797 respectively, for the equipped and renovated lands, and at 0.863, 0.889, and 0.791 for the not equipped and renovated lands which there was no significant difference between these two types of lands at 0.01 level. According to the results of calculating the carbon emissions indices, the environmental sustainability of the equipped and renovated lands is in better condition. Manuscript profile -
Open Access Article
479 - Modeling the Amount of Required Energy and Kinetics of Lavender Drying Using Artificial Neural Network
Mohammad Younesi Alamooti Hamid Khafajeh Mohammad ZareinLavender with the scientific name Lavandula stricta Del is a perennial medicinal plant with a height of about half a meter that grows in different regions of Iran. Drying is one of the oldest methods of preserving materials. The use of neural networks can be used in the MoreLavender with the scientific name Lavandula stricta Del is a perennial medicinal plant with a height of about half a meter that grows in different regions of Iran. Drying is one of the oldest methods of preserving materials. The use of neural networks can be used in the design and selection of optimal working conditions and dryer control. In this study, various parameters of drying, evaluation of mathematical models to determine the best model, evaluation of different topologies of MLP artificial neural network to determine the best network for lavender plant with microwave dryer with power range of 100-1000 watts and The frequency of 2450 MHz is provided in four power levels of 300, 500, 700 and 900 watts. MLP artificial neural network was used to predict the relationship between drying kinetic parameters (moisture ratio and drying rate) and efficiency of energy consumption with changes in microwave power consumption using Statistica software. Among the fitted models, the Midili model was chosen as the best model according to R 2, χ 2 and RMSE criteria. Microwave power levels had an effect on drying time, with drying times of 3 minutes for 900 W power and 11 minutes for 300 W power. In order to predict drying kinetic parameters and energy consumption efficiency, MLP network with one input and three outputs was successfully used. The results generally showed that the MLP artificial neural network is a very powerful tool in predicting drying kinetic parameters and energy efficiency of lavender medicinal plant based on microwave power consumption values. Manuscript profile -
Open Access Article
480 - Modified Super Efficiency in Presence of Infeasibility: A Nonradial Approach
Farhad Hosseinzadeh Lotfi G.L. Jahanshahloo Z. Moghaddas M. Vaez-ghasemi -
Open Access Article
481 - Empowering Leadership, Uncertainty Avoidance, Trust and Employee Creativity
Hamideh Ranjbar Ali Daraei Monfared -
Open Access Article
482 - Performance Evaluation in Bank Branch with Two-Stage DEA Model
Hilda Saleh M. Rostamy Malkhalifeh -
Open Access Article
483 - Profitability and Effectiveness by Means Two Stage DEA Model in Iranian Bank
Morteza Shafiee -
Open Access Article
484 - Benchmarking Marketing Productivity Using Data Envelopment Analysis: a Modified Approach
Farhad Hosseinzadeh Zohreh Moghaddas -
Open Access Article
485 - Empowering Leadership, Uncertainty Avoidance, Trust, and Employee Creativity
Hamideh Ranjbar Ali Daraei Monfared -
Open Access Article
486 - Evaluating Cost Efficiency in Fuzzy Environment by Using Expected Value
Ali Payan Mohsen Hekmatnia -
Open Access Article
487 - Provide a Framework for Identifying and Prioritize the Factors Affecting the Human Resources Effectiveness with ANP Approach
Parisa Aghababaie-Poor Mehrdad Hosseini-Shakib Abbas Khamseh -
Open Access Article
488 - The Effect of Supply Chain Integration on Operational Efficiency and Value Creation
Seyed-Javad Iranban -
Open Access Article
489 - Spatial Organization Analysis of The Historical and Contemporary Houses in Mashhad by Using the Space Syntax Method
Vajihe Mollaee Shams Alireza Rezvani Majid mirzavaziri -
Open Access Article
490 - Evaluation the Effect of Wild Mustard Densities and Nitrogen Fertilizer on Wheat Yield and Correlation between Traits
Nilofar Zande Vakil -
Open Access Article
491 - Investigation Response of Wheat Genotypes to Different level of Nitrogen Fertilizer, Crop Production, Seed Growth Trend and Correlation Between Traits
Fatemeh Torfi -
Open Access Article
492 - Investigation Physiological and Biochemical Characteristics of Sorghum (Sorghum bicolor L., var. Kimia) Affected Zeolite Consumption under Water Deficit Situation
Mohammad Nasri Mansoreh Khalatbari -
Open Access Article
493 - Evaluation Effects of Chemical, Organic and Biologic Fertilizers on Chamomile (Matricaria chamomile L.) Yield
Fatemeh Jahani Abbas Maleki Alireza Pazoki -
Open Access Article
494 - Assessment Agro-Physiological Traits Response of Green Bean to Different Level of Nitrogen, Potassium and Zinc Fertilizers
Mohammad Nasri Mansoreh Khalatbari -
Open Access Article
495 - Assess Effect of Water Deficit Stress and Clinoptilolite on Corn (Zea mays L.) Crop Production
mojtaba alavifazel Hojatollah Sohrabi Najme RazmandehBACKGROUND: Zeolite materials can reduce losing soil moisture in arid and semi-arid regions by soil physical improvement. These storage tanks absorb water provided by irrigation and rainfall and reduced permeability of soil. In drought stress condition, water saved in t MoreBACKGROUND: Zeolite materials can reduce losing soil moisture in arid and semi-arid regions by soil physical improvement. These storage tanks absorb water provided by irrigation and rainfall and reduced permeability of soil. In drought stress condition, water saved in the polymer is gradually depleted and reduces need for re-irrigation. OBJECTIVES: This research was carried out to evaluate effect different level of water stress and Clinoptilolite on effective traits on Corn seed yield. METHODS: This study was done via split plot experiment based on randomized complete blocks design with three replications along 2021-2022 agronomic years. The main factor included Irrigation cycle based on evaporation from class A evaporation pan (I1: 50 mm evaporation or none stress or control, I2: 75 mm evaporation or Moderate stress, I3: 100 mm evaporation or severe stress). Also different level of Clinoptilolite (C1: control, C2: 4 and C3: 8 t.ha-1) belonged to subplots. RESULT: According result of analysis of variance effect of different level of water deficit and Clinoptilolite on all studied traits (instead harvest index) were significant but interaction effect of treatments was not significant. Compare different level of Clinoptilolite showed that the maximum amount of seed yield (4837.78 kg.ha-1), biologic yield (10486.7 kg.ha-1) and water use efficiency (1.5 kg.m-3) belonged to 8 t.ha-1 and lowest amount of mentioned traits were for control treatment. Mean comparison result of different level of water deficit indicated that maximum amount of measured traits was noted for control and minimum of those belonged to severe stress treatment. CONCLUSION: Adding Clinoptilolite to the soil under water stress conditions caused a 14% increase in biological yield and a 20% increase in corn seed yield in compare to the condition of not using this mineral. So that the consumption of 8 t.ha-1 of zeolite led to produce highest seed yield and it dose advised to farmers in studied region. Manuscript profile -
Open Access Article
496 - Investigation Effect of Different Level of Fertilizer and Biologic Fertilizer on Basil Varieties Crop Production at Greenhouse in Khuzestan Province (Southwest of Iran)
Naser Zarifinia -
Open Access Article
497 - Synergistic effect of disordered mesoporous silica and nonionic surfactant on demulsification efficiency of water-in-crude oil emulsions
Forough Mohammadi Haleh Sanaeishoar Elham Tahanpesar -
Open Access Article
498 - تأثیر زهکشی کنترل شده روی محصول نیشکر (مطالعه موردی اراضی کشت و صنعت نیشکر امام خمینی (ره))
رحیم عنافچه یدالله یوسفی فرد عبدعلی ناصری حیدرعلی کشکولیحفظ تراز سطح ایستا بی در نزدیکی منطقه ریشه گیاه به منظور استفاده بهینه از آب آبیاری و تأمین رطوبت در منطقه ریشه، روش متداولی است که بیش از چند دهه مورد استفاده محققان قرارگرفته شده است. در این تحقیق امکان استفاده از روش زهکشی کنترل شده در شرایط آب و هوایی مرکز و جنوب اس Moreحفظ تراز سطح ایستا بی در نزدیکی منطقه ریشه گیاه به منظور استفاده بهینه از آب آبیاری و تأمین رطوبت در منطقه ریشه، روش متداولی است که بیش از چند دهه مورد استفاده محققان قرارگرفته شده است. در این تحقیق امکان استفاده از روش زهکشی کنترل شده در شرایط آب و هوایی مرکز و جنوب استان خوزستان در دو تیمار آزاد (FD) و کنترل شده (CD) بر روی گیاه نیشکر مورد بررسی قرار گرفت. نتایج این تحقیق نشان داد که شوری خاک تیمار آزاد در لایه (30-0) سانتی متر به اندازه 3/1 دسی زیمنس بر متر نسبت به لایه مشابه در تیمار کنترل شده افزایش شوری داشته. تغییرات شوری در دیگر لایهها برای دو تیمار ناچیز بود. از نظر آب مصرفی، تیمار کنترل شده 38 درصد آب کمتری نسبت به تیمار آزاد مصرف نموده وکارآیی مصرف آب آبیاری در تیمار کنترل شده 3/41 درصد بیشتر از تیمار آزاد بود. از نظر تعداد دور آبیاری، تیمار کنترل شده 33 درصد نسبت به تیمار آزاد کمتر بود و از نظر مقدار نمک ورودی، تیمار کنترل شده معادل 36 درصد نسبت به تیمار آزاد کمتر است. از نظر مقدار نمک خروجی از زهکشها، تیمار کنترل شده به میزان 53 درصد کمتر از تیمار آزاد گردید. عملکرد کمی محصول (تن در هکتار) تیمار کنترل شده به میزان 66/8 درصد از تیمار آزاد بیشتر بوده است و در عملکرد کیفی محصول تیمار کنترل شده در نسبت وزن شربت به وزن نی (EX) 9/15 درصد، در میزان قند موجود در شربت (POL) 01/6 درصد، در میزان مواد جامد محلول در شربت (Brix) 24/5 درصد، در درجه خلوص شربت یا میزان قند خالص 8/0 درصد از تیمار آزاد بیشتر شده است. Manuscript profile -
Open Access Article
499 - ارزیابی یکپارچه اثرات افزایش راندمان آبیاری و کاهش آورد بر شاخص هیدروانرژی سیستم منابع آب حوضه آبریز توسط مدل مفهومی WEAP (مطالعه موردی شبکه آبیاری دز - سد مخزنی دز)
بهزاد نویدی نساج نرگس ظهرابی علی شهبازیامروزه تولید برق جهان به شدت به منابع آب وابسته شده است. مطالعات صورت گرفته نشان میدهد که بروز گرمایش جهانی و تغییرات اقلیمی اثرات بسیار مهمی را بر منابع آب موجود به منظور تولید انرژی برقابی به همراه خواهند داشت. با توجه به اینکه سد مخزنی دز واقع در حوضه آبریز دز به صو Moreامروزه تولید برق جهان به شدت به منابع آب وابسته شده است. مطالعات صورت گرفته نشان میدهد که بروز گرمایش جهانی و تغییرات اقلیمی اثرات بسیار مهمی را بر منابع آب موجود به منظور تولید انرژی برقابی به همراه خواهند داشت. با توجه به اینکه سد مخزنی دز واقع در حوضه آبریز دز به صورت همزمان تولید کننده هیدروانرژی و تامین کننده آب مورد نیاز اراضی کشاورزی پاییندست میباشد، هدف پژوهش حاضر برآورد میزان کمی اثر بهبود راندمان در شبکه های آبیاری و کاهش آورد به سد دز بر مقدار هیدروانرژی تولیدی سالانه در سد نیروگاه دز میباشد. به این منظور با شبیهسازی یکپارچه حوضه آبریز دز، اثر اعمال بهبود راندمانهای 5، 10، 15 و 20 درصد و همچنین کاهش آورد رودخانه دز در سطح 5 و 10 درصد در دو افق زمانی کوتاه و بلندمدت مورد مطالعه قرار گرفت. نتایج این تحقیق نشان داد که در بلندمدت به تبع افزایش نیاز و افزایش سازههای هیدرولیکی، میزان هیدروانرژی در حدود 115 گیگاوات ساعت کاهش مییابد. نتایج همچنین نشان داد که بهبود راندمان میزان هیدروانرژی را بین 2 الی 6 گیگاوات ساعت در هر سال افزایش میدهد. در تحلیل نتایج میزان هیدروانرژی تولیدی وابستگی شدیدی به آورد رودخانه دز داشت به طوری که در سناریوهای کاهش آورد، افت یکباره در تولید هیدروانرژی رخ داده است و میزان آن به ازای کاهش آوردهای 5 و 10 درصد به ترتیب 140 و 296 گیگاوات ساعت کاهش یافته است. Manuscript profile -
Open Access Article
500 - شبیه سازی و آشکارسازی نوسانات جریان آبراهه ای با شدت خشک سالی با بهره گیری از مدلWEAP
ارمین بنی بیات حسین قربانی زاده خرازی حسین اسلامی صائب خوش نواز بهروز دهان زادهدر این مطالعه نیاز به انتقال آب در سطوح مختلف توسعه کشاورزی در قالب طرح انتقال آب از سولگان (ونک) به خان‎میرزا مورد بررسی قرار گرفت. در تمامی سناریوهای این گروه اجرای طرح انتقال آب از سولگان به دشت خان‎میرزا (طرح سد ونک) در نظر گرفته شده است. سناریوهای اجرا شده Moreدر این مطالعه نیاز به انتقال آب در سطوح مختلف توسعه کشاورزی در قالب طرح انتقال آب از سولگان (ونک) به خان‎میرزا مورد بررسی قرار گرفت. در تمامی سناریوهای این گروه اجرای طرح انتقال آب از سولگان به دشت خان‎میرزا (طرح سد ونک) در نظر گرفته شده است. سناریوهای اجرا شده در مدل WEAP شامل اجرای طرح تغذیه مصنوعی و همچنین افزایش سطح زیرکشت و افزایش راندمان آبیاری برای به تعادل رسیدن بیلان دشت خان‎میرزا می­باشد. نتایج سناریو اول نشان داد که برای به تعادل رسیدن بیلان آب زیرزمینی دشت باید سالیانه حداقل 45 میلیون مترمکعب آب از سولگان به دشت خان‎میرزا انتقال داده شود. نتایج سناریوی دوم نشان داد که در صورت انتقال کامل آب سولگان به خان‎میرزا می­توان میزان سطح زیرکشت اراضی را تا 21000 هکتار توسعه داد. نتایج سناریوی سوم نشان داد که در صورت انتقال کامل آب سولگان به خان‎میرزا و اجرای کامل طرح آبیاری تحت فشار می­توان علاوه بر تعادل بخشی آبخوان خان‎میرزا، میزان سطح زیرکشت اراضی را تا 26000 هکتار توسعه داد. همچنین سناریوی چهارم نشان داد که در صورت انتقال کامل آب سولگان به خان‎میرزا (یعنی انتقال رقم 200 میلیون مترمکعب در سال) و اجرای کامل طرح آبیاری تحت فشار و اجرای طرح تغذیه مصنوعی سالانه 10 میلیون مترمکعب، می­توان میزان سطح زیر کشت اراضی را تا 30000 هکتار توسعه داد. Manuscript profile -
Open Access Article
501 - برآورد بهره وری سه محصول گندم، جو و ذرت دانه ای در خرمشهر
ایمان هرمزی نژادبا توجه به اینکه ایران از جمله کشورهایی است که در مناطق خشک و نیمه خشک قرار دارد و با کمبود منابع آب رو به رو است به همین دلیل استفاده بهینه از منابع آب در مصارف کشاورزی، مقابله ای در برابر خشکسالی خواهد بود. لذا لزوم اعمال برنامه ریزی دقیق تری برای استفاده بهینه از منا Moreبا توجه به اینکه ایران از جمله کشورهایی است که در مناطق خشک و نیمه خشک قرار دارد و با کمبود منابع آب رو به رو است به همین دلیل استفاده بهینه از منابع آب در مصارف کشاورزی، مقابله ای در برابر خشکسالی خواهد بود. لذا لزوم اعمال برنامه ریزی دقیق تری برای استفاده بهینه از منابع آب احساس می شود. در این بررسی ضمن مرور سایر نتایج موجود، مقدار شاخص کارایی مصرف آب غلات برای منطقه خرمشهر تعیین و با مقدار متوسط جهانی شاخص کارایی مصرف آب برای غلات مورد مقایسه قرار گرفت. بر اساس نتایج بدست آمده، میزان عملکرد محصول اولیه (کیلوگرم) و میزان حجم آب مصرفی (مترمکعب) برای تولید محصول، تعیین شده و در نهایت شاخص کارایی مصرف آب برای سه محصول گندم، ذرت و جو ضمن استفاده از داده های سه سال زراعی 1388تا1390محاسبه گردید. بر اساس نتایج حاصله متوسط مقدار کارایی مصرف آب محصولات زراعی گندم، جو و ذرت دانه ای به ترتیب 07/1، 02/1 و 35/1 کیلوگرم محصول بر متر مکعب آب مصرفی بدست آمد. Manuscript profile -
Open Access Article
502 - برآورد شاخص های کارایی مصرف آب کشاورزی در شبکه آبیاری گتوند
بهنام شجاعی ستار کاظمی افشین سرکهکی علی عصارهدر این پژوهش کارایی مصرف آب با دو شاخص عملکرد به ازای هر واحد آب مصرفی (CPD) و درآمد ناخالص به ازای هر واحد آب مصرفی برای محصولات الگوی کشت موجود شبکه آبیاری گتوند در شمال استان خوزستان، با استفاده از داده­ های واقعی الگوی کشت و با برآورد نیاز آبی در چهار سنار Moreدر این پژوهش کارایی مصرف آب با دو شاخص عملکرد به ازای هر واحد آب مصرفی (CPD) و درآمد ناخالص به ازای هر واحد آب مصرفی برای محصولات الگوی کشت موجود شبکه آبیاری گتوند در شمال استان خوزستان، با استفاده از داده­ های واقعی الگوی کشت و با برآورد نیاز آبی در چهار سناریوی مختلف برای تحقق راندمان آبیاری، مورد بررسی قرار گرفت. نتایج نشان داد، بیشترین مقدار شاخص CPD مربوط به محصولات هویچ و چغندرقند بود. کمترین مقادیر CPD مربوط به محصولات کنجد و آفتابگردان به دست آمد. همینطور بیشترین مقدار شاخص BPD به ترتیب به محصولات توت­ فرنگی و بامیه اختصاص یافت. کمترین مقادیر BPD به ترتیب متعلق به محصولات زیتون و آفتابگردان بود. همچنین متوسط شاخص CPD شبکه آبیاری گتوند برای سناریوهای تحقق راندمان آبیاری 30، 35، 42 و 54 درصد، به ترتیب برابر 0.92، 1.08، 1.44، 1.85 کیلوگرم در مترمکب آب بدست آمد. مقادیر متوسط شاخص BPD شبکه آبیاری گتوند برای سناریوهای تحقق راندمان آبیاری 30، 35، 42 و 54 درصد، به ترتیب برابر 34699، 40482، 53326 و 68563 ریال در مترمکعب آب مصرفی بود. مطابق داده ­های موجود، مقدار متوسط درآمد در واحد سطح برای الگوی کشت منطقه برابر 451.6 میلیون ریال در هر هکتار حاصل گردید. Manuscript profile -
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503 - اثر بیوچار سبوس برنج و کم آبیاری بر خصوصیات مورفولوژیکی و کارایی مصرف آب گیاه نعناع فلفلی
انیس کوشکی افسانه عالی نژادیان عباس ملکی تنش‎خشکی یکی از مهمترین تنشهای محیطی است که تولیدات محصولات کشاورزی را با مشکل روبرو میکند. در راستای بررسی اثر بیوچار حاصل از سبوس برنج بر خصوصیات مورفولوژیکی گیاه نعناع فلفلی آزمایشی در شرایط گلخانه به صورت فاکتوریل و در قالب طرح کاملا تصادفی با تیمارهای More تنش‎خشکی یکی از مهمترین تنشهای محیطی است که تولیدات محصولات کشاورزی را با مشکل روبرو میکند. در راستای بررسی اثر بیوچار حاصل از سبوس برنج بر خصوصیات مورفولوژیکی گیاه نعناع فلفلی آزمایشی در شرایط گلخانه به صورت فاکتوریل و در قالب طرح کاملا تصادفی با تیمارهای سه سطح بیوچار (صفر، 3 و 6 تن در هکتار) و چهار سطح آبیاری (100 درصد آبیاری ( بدون تنش)، 60، 80 و 120 درصد آبیاری کامل، با چهار تکرار در آبان سال 98 انجام شد. نتایج نشان داد با توجه به معنی­دار شدن اثر برهم‎کنش تیمارها بر وزن‎تر برگ، بیش‎ترین وزن‎تر مربوط به سطح کاربرد 3 تن در هکتار بیوچار و تیمار 120 درصد آبیاری کامل به مقدار93/23 گرم در گلدان به‎دست آمد. همچنین کم‎ترین وزن‎تر (03/13 گرم در گلدان) در سطح 3 تن در هکتار بیوچار و تیمار 60 درصد آبیاری کامل مشاهده گردید، درحالیکه با تیمار شاهد تفاوت معنی­داری نشان نداد. همچنین کاربرد 6 تن در هکتار بیوچار سبب افزایش معنی­دار وزن خشک، ارتفاع، میزان آب مصرفی گیاه و کارایی مصرف آب به ترتیب به میزان 13/28، 73/10، 69/10 و 73/44 درصد نسبت به تیمار شاهد شد. همچنین با کاهش اعمال سطوح مختلف آبیاری در سطح 60 درصد آبیاری کامل، وزن خشک، ارتفاع، مقدارآب مصرفی و کارایی مصرف آب گیاه در مقایسه با تیمار شاهد به ترتیب به میزان 89/39، 34/33، 69/14 و 46/29 درصد کاهش معنی­داری نشان داد. Manuscript profile -
Open Access Article
504 - ارزیابی عملکرد زهکش های زیرزمینی در دو نوع فیلتر مصنوعی PP450 و فیلتر طبیعی در مزارع نیشکر: مطالعه موردی کشت و صنعت سلمان فارسی
خسرو غربالی علی عصاره مهدی اسدی لورپوشش های شن و ماسه قسمت زیادی از هزینه اجرایی یک طرح را به خود اختصاص می دهند. هدف ازاجرای این تحقیق ارزیابی عملکرد پوشش های مختلف جهت فیلتراسیون زهکش های زیرزمینی و کاهش هزینه در مزارع نیشکرمی باشد. آزمایشات مورد نظر درمزرعه آزمایشی در کشت و صنعت سلمان فارسی انجام شد. Moreپوشش های شن و ماسه قسمت زیادی از هزینه اجرایی یک طرح را به خود اختصاص می دهند. هدف ازاجرای این تحقیق ارزیابی عملکرد پوشش های مختلف جهت فیلتراسیون زهکش های زیرزمینی و کاهش هزینه در مزارع نیشکرمی باشد. آزمایشات مورد نظر درمزرعه آزمایشی در کشت و صنعت سلمان فارسی انجام شد. زهکش زیرزمینی مربوط به هر قطعه آزمایشی به طول 120 متر، قطر 100 میلیمتر و فاصله 30 متر از یکدیگر نصب شدند. آزمایش های مورد نظر در 3 تیمار و 3 تکرار جمعا در 9 قطعه انجام شد. در هر تیمار 3 رشته زهکش زیرزمینی نصب گردید و زهکش میانی به عنوان زهکش آزمایشی مورد اندازه گیری واقع گردید. تیمار های زهکشی زیرزمینی عبارت بودند از: تیمارC: لوله های زهکش با پوشش از نوع سنتتیک PP450 ، تیمارD: لوله های زهکش با پوشش از نوع شن و ماسه و تیمارE: لوله های زهکش بدون پوشش. در هر قطعه آزمایشی، 2 ردیف چاهک مشاهده ای در فاصله صفر، 4/.، 5/1، 15، 30 و 45 متری از زهکش مرکزی قرار گرفت. عمق آبیاری در هر نوبت 25سانتیمتر در نظر گرفته شد. در طول مدت آزمایش 14 بار آبیاری با عمق معادل 5/3 متر صورت گرفت. لازم به ذکر است زمین در مزارع آزمایشی بصورت نکاشت آبیاری شد. به منظور ارزیابی عملکرد پوشش های به کار رفته جهت فیلتراسیون زهکش های زیرزمینی از شاخص های راندمان تخلیه لترال(H)، مقاومت در برابر ورود جریان(re) و ثابت تجمعی مقاومت ورود جریان به لترال زیرزمینی(eα) استفاده شد. برآورد هزینه تمام شده فیلتر مصنوعی و فیلتر طبیعی بر اساس فهرست بهای آبیاری و زهکشی سال 94 و تعدیل متعلقه انجام شد. نتایج آزمایش نشان داد فیلتر مصنوعی PP450 و فیلتر طبیعی شن و ماسه در کلیه پارامترهای مربوط به کیفیت زهکشی، نظیر راندمان تخلیه زهکشی، مقاومت در برابر ورود جریان و نیز ثابت تجمعی مقاومت نتایج خوب و قابل قبولی از خود نشان داده اند، درصورتیکه زهکش بدون فیلتر در هیچکدام یک از پارامترهای مورد نظر خوب نبوده و فاقد نتایج قابل قبول می باشد. همچنین نتایج تحقیق نشان داد فیلتر مصنوعی نسبت به فیلتر طبیعی به میزان 25 درصد کاهش هزینه داشته است؛ همچنین درآمد حاصله ناشی از کاهش میزان شوری ناشی از کاربرد فیلتر مصنوعی نسبت به فیلترطبیعی به میزان 17 درصد افزایش داشته است. به عبارتی در مجموع استفاده از فیلتر مصنوعی PP450 نسبت به فیلتر طبیعی شن و ماسه 42درصد در آمد بیشتری حاصل می نماید. Manuscript profile -
Open Access Article
505 - تاثیر مصارف و راندمان شبکه های آبیاری بر تولید انرژی برقابی در حوضه کارون
حمیدرضا ماجدی حسین فتحیان علیرضا نیکبخت شهبازی نرگس ظهرابیدر این پژوهش مدل­سازی تلفیقی حوزه کارون بزرگ با ظرفیت نیروگاهی ۱۰۵۰۰ مگاوات با سناریوهای چندمنظوره در راستای شبیه­سازی تخصیص منابع و هیدروانرژی و کاهش تولید گاز گلخانه­ای مورد توجه قرار گرفت. شبیه­سازی و توسعه مدل یکپارچه WEAP در یک بازه زمان Moreدر این پژوهش مدل­سازی تلفیقی حوزه کارون بزرگ با ظرفیت نیروگاهی ۱۰۵۰۰ مگاوات با سناریوهای چندمنظوره در راستای شبیه­سازی تخصیص منابع و هیدروانرژی و کاهش تولید گاز گلخانه­ای مورد توجه قرار گرفت. شبیه­سازی و توسعه مدل یکپارچه WEAP در یک بازه زمانه پنجاه ساله در کنار توسعه مدل MODFLOW در پهنه­های آبرفتی که با رودخانه دارای اندرکنش می­باشند امکان بررسی سیستم یکپارچه منابع آب حوضه را میسر نمود. پس از واسنجی و صحت­سنجی مدل تلفیقی لینک شده ، چندین سناریو اجرا گردید. مولفه­های تحت پوشش این سناریوها شامل تامین مصارف داخلی و خارجی حوضه، اثر استفاده تلفیقی منابع آب، اثر افزایش راندمان شبکه­های آبیاری در شرایط حداکثر کردن تولید انرژی پاک برقابی و حداقل کردن افت آبخوان در شرایط کم آبی ناشی از خشکسالی بود. در این راستا سناریو دوم با تولید میزان 15282 گیگاوات ساعت انرژی ضمن تامین بهینه نیاز آینده و نیاز زیست­محیطی به عنوان سناریو برتر بهره­برداری، حداقل انتشار گاز گلخانه­ای در حوضه را به دنبال خواهد داشت. Manuscript profile -
Open Access Article
506 - ارزیابی سیستم آبیاری قطره ای گونه های درختی بادام و گردو با ارائه مدل ریاضی
رضا صالحی سینا عطارروشن رمضانعلی پوررستمی سیامک کاتبی فرتحقیق حاضر بر روی سیستم آبیاری قطره‎ای در منطقه شهمیرزاد از توابع استان سمنان که با وسعت 700 هکتار با محصول گردو و بادام اجرا شده، انتخاب گردیده و سیستم از نظر طراحی، اجرا و مدیریت بهره‎برداری، مورد بررسی و ارزیابی قرار گرفته و مدلی ریاضی برای آن تهیه گردید. ورو Moreتحقیق حاضر بر روی سیستم آبیاری قطره‎ای در منطقه شهمیرزاد از توابع استان سمنان که با وسعت 700 هکتار با محصول گردو و بادام اجرا شده، انتخاب گردیده و سیستم از نظر طراحی، اجرا و مدیریت بهره‎برداری، مورد بررسی و ارزیابی قرار گرفته و مدلی ریاضی برای آن تهیه گردید. ورودی مدل شامل فشار و انرژی در ابتدای سیستم و قطر لوله‎های بکار رفته بوده؛ و با استفاده از روابط و معادلات پیوستگی و نیز معادلات انرژی و افت، میزان افت در لوله‎ها، سرعت جریان، فشار، دبی و انرژی را در قالب جداول و نمودار ارائه می‎دهد. کارآیی مدل و سناریوهایی که می‎توان در این مدل ارائه نمود و نیز پارامترهای ارزیابی بر اساس دستورالعمل اداره حفاظت خاک امریکا (SCS) که توسط استاندارد ASAE توصیه شده، می‎باشد. سیستم با متوسط یکنواختی ریزش 74/85 درصد در مانیفلد (EUm) و متوسط ضریب کاهش راندمان (ERF) 64/0 و متوسط یکنواختی ریزش 87/54 درصد در سیستم (EUs) و پتانسیل راندمان کاربرد (PELQ) به مقدار 88/49 درصد می‎باشد. با توجه به نتایج بدست آمده از ارزیابی که در چند مرحله انجام شد، سیستم در مرحله اجرا و مدیریت بهره‎‎برداری دارای اشکالات زیادی بوده و ضعیف ارزیابی می‎شود. بالا بودن ضریب تغییرات ساخت قطره چکان‎ها (26 درصد) و ضعف مدیریت سیستم، به دلیل کم بودن پتانسیل راندمان کاربرد، در این تحقیق مشاهده شد. Manuscript profile -
Open Access Article
507 - مطالعه شاخص بهرهوری آب، در مزارع سیب زمینی دشت همدان ـ بهار
محمد رضا قاسمی نژاد صفر معروفیمحدودیت منابع آب، عدم برنامه­ریزی آبیاری و استفاده نامطلوب از آب، عامل اصلی محدود کننده توسعه کشاورزی در ایران است. در این پژوهش، زمان و میزان آب آبیاری، به­منظور افزایش بهره­وری آب، در مزارع سیب­زمینی دشت همدان – بهار، تعیین گردید. بدین منظور، سه Moreمحدودیت منابع آب، عدم برنامه­ریزی آبیاری و استفاده نامطلوب از آب، عامل اصلی محدود کننده توسعه کشاورزی در ایران است. در این پژوهش، زمان و میزان آب آبیاری، به­منظور افزایش بهره­وری آب، در مزارع سیب­زمینی دشت همدان – بهار، تعیین گردید. بدین منظور، سه مزرعه سیب­زمینی در بخش­های مختلف دشت، در سال زراعی 90-1389 انتخاب و با استفاده از تانسیومتر و بلوک­گچی، مصرف آب اندازه­گیری شده و نهایتاً شاخص بهره­وری آب (WUE) با استفاده از حجم آب مصرفی (W) و عملکرد محصول (Y) محاسبه شد. بر اساس اندازه­گیری­های انجام شده، حداقل و حداکثر میزان آب مصرفی، در مزارع تیمار، به­ترتیب 4481 و 7500 مترمکعب و نیز در مزارع شاهد نیز، به­ترتیب 5092 و 8279 مترمکعب در هکتار بوده است. نتایج نشان داد که با آموزش برنامه­ریزی صحیح مصرف آب، عملکرد محصول سیب­زمینی به مقدار قابل ملاحظه­ای (13 درصد) افزایش، می­یابد. این افزایش، با کاهش 1/13 درصد میزان آب مصرفی در تمامی مزارع مورد مطالعه همراه بوده­است و در نتیجه کارایی مصرف آب نیز 29 درصد افزایش یافت. نتایج نشان داد که میتوان از تانسیومتر به­عنوان یک ابزار مناسب جهت بهبود مدیریت آبیاری با آموزش آن به زارعین استفاده نمود. Manuscript profile -
Open Access Article
508 - Analysis of human resources performance using the two-stage data envelopment analysis approach-Case study: Azar Noosh Shokofeh Co.
HAMIDREZA ASILFARID Mehran Khalaj Maryam ZaeriEvaluation and assessment has been always considered by human beings. Human resources performance evaluation has been considered for organization and managers, so that has owned very important and conductive role and considered as one of the effective elements on organi MoreEvaluation and assessment has been always considered by human beings. Human resources performance evaluation has been considered for organization and managers, so that has owned very important and conductive role and considered as one of the effective elements on organizational competition priorities. In this article, personnel’s’ performance and efficiency analysis has been operated by 2 stage DEA function. However, different functional models have been presented in this field but include some difficulties and do not meet all decision makers’ needs. The provided functional model in this research has resolved all previous models difficulties which are not only based on factors such as extra work hours, salaries and day off as primal entrance, effective working hour and availability of being in learning sessions as middle entrance, the amount of valid production and invalid production as final entrance. As result one of the newest personnel performance assessment is DEA that is multi-criteria method for determining and evaluating companies and personnel’s’ performance. The purposed operational model has been used in assessing efficiency and effectiveness of AZARNOOSH SHEKOUFEH’s personnel’s performances, and analysis for improving the efficiency and effectiveness of each personnel and production optimized performance fro decision makers. Manuscript profile -
Open Access Article
509 - Presenting a model for statistical process control in order to optimize efficiency and quality in manufacturing industries
abbas morovvati Seyed Jalaledin Hosseini Ghoncheh Hasan HalehIn this research, a combined statistical process control model is presented to identify factors affecting efficiency and quality in manufacturing and component manufacturing industries, and then controlling and optimizing these processes is considered. Manufacturing and MoreIn this research, a combined statistical process control model is presented to identify factors affecting efficiency and quality in manufacturing and component manufacturing industries, and then controlling and optimizing these processes is considered. Manufacturing and component industries are considered as the main body of the country's industries for case study and implementation. Clustering techniques are used to discover factors affecting efficiency. And then using decision tree algorithms to predict efficiency and quality in these industries, and in the final stage, control charts of dispersion and average variables are used to draw control charts. The comparison table of the parameters is prepared by the output of the Clementine software, and RapidMiner software is used in the neural network section. The results obtained from the identification of influencing and forecasting factors are close to the target values from a technical point of view, and the control charts are consistent with the technical control limits of the characteristics and are useful for optimizing the target value, which is efficiency and quality. Manuscript profile -
Open Access Article
510 - Evaluating the performances of decision-making units based on the optimistic and pessimistic points of view
Hossein Azizi Maziar SalahiData envelopment analysis (DEA) is a methodology for assessing the performances of a group ‎of decision making units (DMUs) that utilize multiple inputs to produce multiple outputs. It ‎measures the performances of the DMUs by maximizing the efficiency of every MoreData envelopment analysis (DEA) is a methodology for assessing the performances of a group ‎of decision making units (DMUs) that utilize multiple inputs to produce multiple outputs. It ‎measures the performances of the DMUs by maximizing the efficiency of every DMU, ‎respectively, subject to the constraints that none of the efficiencies of the DMUs can be less ‎than one. The efficiencies measured in this way are referred to as optimistic efficiencies or the ‎best relative efficiencies. The way to measure the optimistic efficiencies of the DMUs is ‎referred to as self-evaluation. If a DMU is self-evaluated to have an efficiency score of one, ‎then it is said to be DEA efficient; otherwise, the DMU is said to be non-DEA efficient. ‎There is a comparable approach which uses the concept of inefficiency frontier for ‎determining the worst relative efficiency score that can be assigned to each DMU. DMUs on ‎the inefficiency frontier are specified as DEA-inefficient, and those that do not lie on the ‎inefficient frontier, are declared to be DEA-non-inefficient. In this paper, we argue that both ‎relative efficiencies should be considered simultaneously, and any approach that considers ‎only one of them will be biased. For measuring the overall performance of the DMUs, we ‎propose to integrate both efficiencies in the form of an interval, and we call the proposed ‎DEA models for efficiency measurement the bounded DEA models. In this way, the ‎efficiency interval provides the decision maker with all the possible values of efficiency, ‎which reflect various perspectives. Manuscript profile -
Open Access Article
511 - Evaluating the Energy Efficiency of the Kohgiluyeh and Boyerahmad Province Industries
Vahide Rezaie Samad Nejatian Masumeh KhanmohammadiNowadays, human looks to tread a path towards optimized using of available resources, Therefore, due to the limitations of capital, time, location, energy, and so on, managers have sought scientific methods from the beginning to make the most of these constraints. one o MoreNowadays, human looks to tread a path towards optimized using of available resources, Therefore, due to the limitations of capital, time, location, energy, and so on, managers have sought scientific methods from the beginning to make the most of these constraints. one of the most important ways to achieve optimization is evaluating the performance of the Decision Making Units. The gool of this work is to evaluate the energy consumption in the Kohgiluyeh and Boyerahamd province industry considering the industries with 10 and more employees. As in the calculating of the energy efficiency, several outputs and inputs must be considered in form of the productiion function theory, the data envelopment analysis is used to calculate the energy efficiency in the industrial units. Then the results of the energy efficiency, existing barriers and the practical consideration will be explaiend. The results of the efficiency model show that the most important factor of the inefficiency of the province's industry is the large population of job seekers and is the lack of optimal utilization of the workforce in the province's industry. Manuscript profile -
Open Access Article
512 - Determining the main indicators, evaluating and ranking the efficiency of knowledge management performance by data envelopment analysis, case study: Iranian oil industry
masoud najafi behzad GhasemiThe most important reason for identifying the main indicators and calculating the efficiency of knowledge management performance in the oil industry is to maintain and classify the existing knowledge and create a strong global competitive advantage by making progress in MoreThe most important reason for identifying the main indicators and calculating the efficiency of knowledge management performance in the oil industry is to maintain and classify the existing knowledge and create a strong global competitive advantage by making progress in developing production methods with new technology based on improving technical knowledge. The most important parameter of performance evaluation is efficiency; there are different methods to measure it. Data envelopment analysis is a powerful tool for calculating system efficiency, including knowledge management performance in the oil industry. In this research, the main indicators of knowledge management were identified using library resources and practical publications. By surveying the employees of oil industry companies with data envelopment analysis and hierarchical analysis techniques, the efficiency of knowledge management performance was calculated, which can be used to rank the companies and planning to improve their knowledge management level. According to the results, the National Refining and Distribution of Petroleum Products Company has acted at higher level than other companies and has a good competitive advantage with its global competitors. The present study is the first study that has calculated the efficiency of knowledge management performance of four main Iranian oil industry companies with data envelopment analysis. Manuscript profile -
Open Access Article
513 - Use the game theory approach and data envelopment analysis to calculate cost efficiency in two-stage networks
Raheleh Mousavizadeh Mehrzad Navabakhsh Ashkan HafezalkotobPerformance evaluation in data envelopment analysis is obtained by using technical efficiency calculation. But what is not taken into account in this type of calculation is the price of model inputs. In calculating technical efficiency, the amount of output to the input MorePerformance evaluation in data envelopment analysis is obtained by using technical efficiency calculation. But what is not taken into account in this type of calculation is the price of model inputs. In calculating technical efficiency, the amount of output to the input is maximized, and the model can be used to identify efficient decision-making units, while it is possible to determine the decision-making unit that is at the efficiency limit and a reference for other units. Decision-making systems are efficient at a high cost, and it is possible to find decision-making units that are on the verge of efficiency at a lower production cost. Cost Efficiency seeks to find points that are on the edge of efficiency at the lowest cost. Given the importance of cost efficiency and the lack of attention to this concept in network and multi-stage structures, this study investigates cost efficiency in a purely two-stage process. In the present study, using the concept of game theory and data envelopment analysis in a centralized and decentralized state, we evaluate the performance of purely two-stage processes. In order to investigate the validity and efficiency of the models and their applicability, a case study has been used in the Iranian electricity industry and some management results are discussed. Manuscript profile -
Open Access Article
514 - Comparison of supply chain performance evaluation with BSC-FDEA and BSC-RDEA methods in Tabriz automotive industries
SINA CHARTAB JABBARI kamaleddin rahmani youshanloui mohammad paseban yagoub Alavi matin Mojtaba RamazaniConsidering the importance of the issue of efficiency in the advancement of societies and the place it occupies in today's organizations, the use of performance evaluation has become an unavoidable necessity. In the present study, the performance evaluation of five acti MoreConsidering the importance of the issue of efficiency in the advancement of societies and the place it occupies in today's organizations, the use of performance evaluation has become an unavoidable necessity. In the present study, the performance evaluation of five active supply chains with the same structure with the aim of comparing the results of the combined RDEA-BSC and FDEA-BSC models in Tabriz automotive industry and the input and output data in the form of symmetrical triangular fuzzy numbers and the set of uneven numbers to the input and output model The models show the performance of the supply chain. From the Balanced Scorecard (BSC) method as a tool for designing performance evaluation indicators in four aspects; financial, processes, customer and learning and human force growth have been used and also the type of applied-descriptive research and measurement tool is questionnaire, financial documents and information analysis method, FDEA, RDEA, BSC mathematical model and sensitivity analysis. The results of the research show that the efficiency of Amico in each model is higher than other studied companies Manuscript profile -
Open Access Article
515 - Proposed a model to evaluate supply chains sustainability efficiency based on trade-offs among sustainability goals using game theory
Mohsen Yaghoubizade Vanini Reza Yousefi Zenouz Amir-Reza Abtahi Kaveh Khalili-DamghaniSupply chain sustainability is necessary for businesses today, so organizations pay attention to social and environmental goals in addition to economic goals. Therefore, to ensure the realization of these goals, measuring the sustainability efficiency of the supply chai MoreSupply chain sustainability is necessary for businesses today, so organizations pay attention to social and environmental goals in addition to economic goals. Therefore, to ensure the realization of these goals, measuring the sustainability efficiency of the supply chain is considered inevitable. The problem of assessing the performance of supply chain sustainability, on the one hand, is affected by the inherent conflicts of interest among sustainability goals, which increase the complexity of the problem, and on the other hand, it should be configured in a way that can simultaneously provide sufficient knowledge of the efficiency of overall supply chain sustainability and sustainability goals. In this study, a combined mathematical model of data envelopment analysis and game theory is presented to evaluate the sustainability efficiency of the supply chain and the efficiency of sustainability goals by considering the trade-offs among sustainability goals. The trade-offs among sustainability goals are formulated using the Nash bargaining game in such a way that the ability to provide simultaneous results is related to the overall efficiency of supply chain sustainability and the efficiency of each sustainability goal. The proposed model was evaluated under a case study for appraising the efficiency of supply chain sustainability of an Iranian pharmaceutical company. The results of the model implementation indicate that the proposed model is firstly capable of simultaneously providing efficiency values of supply chain sustainability and each sustainability goal, and secondly, it provides the necessary and sufficient knowledge in comparison of these values for efficient and inefficient products. Manuscript profile -
Open Access Article
516 - Evaluation of Performance of Personnel Units of Management in Mellat Bank with a Combined Approach of Window analysis Models and Malmquist Index
Ezatolah Asgharizadeh Masoud Keimasi Elnaz BorjiThe purpose of this paper is to evaluate the performance of personnel units of five regions of Tehran Bank Mellat and investigating their productivity and efficiency by taking advantage of data envelopment analysis (DEA) efficiency as well as using Malmquist index. The MoreThe purpose of this paper is to evaluate the performance of personnel units of five regions of Tehran Bank Mellat and investigating their productivity and efficiency by taking advantage of data envelopment analysis (DEA) efficiency as well as using Malmquist index. The study period is 2011-2015.In this study, we track the performance of every decision-making unit over time and to analyze the changes in efficiency and productivity as well as separation of efficiency over time and into two major components: technological developments and changes in efficiency by Malmquist Index and window analysis. The results show that human resources departments of regions 4 and 5, respectively, with 93% and 97% technical efficiency scores are in the first place, and the offices of regions 4 and 5 with the mean efficiency of about 95% have appropriate efficiency. Moreover, human resources departments of all regions with the average efficiency of over 95% are favorable. Based on Malmquist Index values among the regions, Region 3 (1.023) has had efficiency improve in during the study period, and evaluating total efficiency changes show that year 2012 (1.033) has had the greatest growth in productivity. Manuscript profile -
Open Access Article
517 - A Study on the Efficiency of Companies Listed on the Tehran Stock Exchange Using Data Envelopment Analysis
Hiresh Soltanpanah Iman Dadashi Samira ZareiIn this research, we investigate the efficiency of companies listed on Tehran stock exchange using Data envelopment analysis (DEA). To do so, we compute the relative efficiency of the companies using input oriented CCR, BCC and CRS and VRS approaches and separate their MoreIn this research, we investigate the efficiency of companies listed on Tehran stock exchange using Data envelopment analysis (DEA). To do so, we compute the relative efficiency of the companies using input oriented CCR, BCC and CRS and VRS approaches and separate their inefficiency into two technical and scale sections. In continuous, we tend to determine the companies with the absolute efficiency among the companies with one hundred percent relative efficiency. Finally, we try to determine the reference groups as a pattern for improving their efficiency by identifying the weakly efficient companies. The research data were collected from financial statement of 75 companies listed in three different industries including chemical, food and non-metal in the Tehran stock exchange from 2006 to 2010. By considering the previous researchers, in order to compute the efficiency of the companies, we use from two input variables including total assets and total liability to total assets ratio and three output variables including EPS, ROA and ROE. The results show that the significant amount of existing inefficiency is because of the scale inefficiency in these companies, while all the efficient companies in these three industries are as the weakly efficiency type and there isn’t any company with the absolute efficiency among them. Manuscript profile -
Open Access Article
518 - Provide a Data Envelopment Analysis/Data Mining Integrated Model for Evaluation of Decision-making Units
Alireza Alinezhad Javad KhaliliEfficiency is an important issue for the managers of different companies and organizations, as well as customers who are interested in services of these companies and organizations. The aim of this research is to study the efficiency of pharmaceutical companies accepted MoreEfficiency is an important issue for the managers of different companies and organizations, as well as customers who are interested in services of these companies and organizations. The aim of this research is to study the efficiency of pharmaceutical companies accepted in stock exchange organization using Data Envelopment Analysis (DEA) and then, providing some rules using the decision tree. The Malmquist index partly resolves the problem of inadequacy of the observations by enabling the combination of time-series and cross-sectional observations. This method acts on the basis of moving average and it is of use for finding performance trends of a unit during the time. In this research, regarding the inputs and outputs and using the Malmquist index, efficiency evaluation of 22 pharmaceutical companies accepted in stock exchange organization has been done in the state of constant returns to scale during 2012-2016, and the results obtained were used as the class label of Decision-Making Units (DMUs) which are in fact inputs of decision tree method. Finally, using the decision tree, rules implicit in the data, are extracted. Manuscript profile -
Open Access Article
519 - A Two-Stage DEA Model to Evaluate and Improve the Systems Function (Case study: Sorena System Sharq Company Projects)
Mehran Khalaj Hamid Reza AsilfaridIn this research, with the improvement of previous existed models and surveying of structural similarities, more efficient model will be offered which is able to an evaluation of DMU performance of a two-stage system simultaneously and also the consequent assessment of MoreIn this research, with the improvement of previous existed models and surveying of structural similarities, more efficient model will be offered which is able to an evaluation of DMU performance of a two-stage system simultaneously and also the consequent assessment of the system’s operation. Improved procedures and solutions are offered in such a way that following them the ideal efficient situation can be figured out. The proposed model can solve the previous models’ issues which can lead to impractical and invalid responses. The practical result of this research is the conceptual model for evaluating the performance of projects and inspection of electronic protection in Sorena System Company, where a method is created for optimizing the impact of each component of the primary inputs over the final output and consensus performance of projects effectively and efficiently. The cost of advertising, personnel and equipment’s programs in Rials (as the three factors of input), the monetary value of provided services of (private and public) inspection and electronic protection projects (as two intermediate output component) and the quantity and index‘s monetary value of deviant work in inspection and electronic protection projects (as two components of the final output targets) will be analyzed. Manuscript profile -
Open Access Article
520 - Evaluation of Management Efficiency in Cement Industry of Iran Using Data Envelopment Analysis Technique
Akbar Valizadeh Oghani Nasser Fegh-hi Farahmand Farzin Modarres KhiabaniThe management ability affects activities such as R & D, cost, financial costs, assets and firm's income. Their efficiency also depends on these factors. The purpose of this study is to measure the ability of management in the cement industry with a new pattern has MoreThe management ability affects activities such as R & D, cost, financial costs, assets and firm's income. Their efficiency also depends on these factors. The purpose of this study is to measure the ability of management in the cement industry with a new pattern has been member of the Iranian stock exchange. To do this, data from financial statements of companies at 2012 to 2016 years were used. First, by implementing a suitable model and regional Data Envelopment Analysis model, Relative efficiency for each of the companies is calculated and efficient units also have been ranking with Anderson-Peterson method. Then estimate a regression model, the index is calculated to management ability each of the firms. For evaluating the relative efficiency optimization software GAMS and to determine the ability of management software E-Views is used. We aim to achieve non-inherent ability of managers in units. The results of the research show that the efficiency or Inefficiency of the companies can be related to the inherent and acquired ability of managers. The results indicate that companies that have been evaluated with a score efficiently (For example; Iran Chalk Co. & Ardabil Cement Co.), not simply guarantee for high ability of their managers. While, some companies have been efficiently evaluated the ability of their managers is also high. For example; Khuzestan Cement Co. & Mazandaran Cement Co. Manuscript profile -
Open Access Article
521 - Identifying Variables of Performance Audit in Universities of Iran
Fatemeh Hamzehnezhad Hassan BadieiSocietal evolutions originate from universities. Due to the scarcity of resources to achieve economic goals, the need to improve the operations and performance audit in order to regulate universities’ activities is critical. Performance audit refers to an independ MoreSocietal evolutions originate from universities. Due to the scarcity of resources to achieve economic goals, the need to improve the operations and performance audit in order to regulate universities’ activities is critical. Performance audit refers to an independent examination of a program, function, operation or the management systems and procedures of an entity to assess whether the entity is achieving economy, efficiency, and effectiveness in the employment of available resources. In this study, we have investigated the feasibility of performance audit establishment in universities of Iran using questionnaire. The population included all auditors who have experience in performance auditing, especially in educational sectors. The sample size is 185. Sixteen performance audit system factors have been identified in the universities according to three elements: ability, authority, and acceptance. To prioritize factors the Friedman test was used. All variables had the equal effect on the establishment of the performance audit. Manuscript profile -
Open Access Article
522 - Identifying Teachers' Personality Competencies and Determining the Relationship of these Competencies with Their Educational Efficiency
khosro rashid parimah mohammadiyan hossein mohagheghi احمد بیاتTeacher's personality traits and competencies can play a role in the quality and efficiency of his / her educational performance.The purpose of this study was to identify the personality competencies of teachers and the relationship of these competencies with their educ MoreTeacher's personality traits and competencies can play a role in the quality and efficiency of his / her educational performance.The purpose of this study was to identify the personality competencies of teachers and the relationship of these competencies with their educational efficiency.The research method was mixed (quantitative and qualitative) and the statistical population was educational psychologists, principals, and teachers of secondary schools in Hamadan (65 specialists, 384 principals, and 2415 teachers). In order to identify the personality competencies of teachers, 40 people were selected as the sample for the interview through the available method. Also, 13 principals and 60 teachers were selected through cluster sampling method. They answered NEO-PI (Costa &McCare, 1983) and the researcher-made questionnaires. After analyzing the content of the interviews and identifying the personality competencies, the research questionnaires were completed by the participants. Data were analyzed by Pearson correlation method using SPSS-25 software.The result of the content analysis of the interviews was the extraction of the characteristics of energeticness, tolerance, communication skills, empathy, management, eagerness for new experiences, adjustment, responsibility, and positive ethical-behavioral characteristics. Also, Pearson correlation showed that there is a positive relationship between teachers' personality competencies and their educational efficiency (P < 0.01; r = 0.54) and the component of communication skills has the highest correlation with teachers' educational efficiency (r = 0.64).The higher the characteristics of energeticness, tolerance, communication skills, empathy, management, eagerness for new experiences, adjustment, responsibility, and positive moral-behavioral characteristics in teachers, the higher their educational efficiency. Manuscript profile -
Open Access Article
523 - Evaluating the impact of the diversity of activities on the financial performance of Iranian banks with emphasis on the efficiency of human capital: a case study of Pasargad Bank
Amir Hossien Cheraghian Kamran Yeganegi Amirreza KeyghobadiConsidering that this article deals with the evaluation of the impact of the diversity of activities on the financial performance of Iranian banks, focusing on the efficiency of human capital (case study of Pasargad Bank), it is practical in terms of purpose, and the re MoreConsidering that this article deals with the evaluation of the impact of the diversity of activities on the financial performance of Iranian banks, focusing on the efficiency of human capital (case study of Pasargad Bank), it is practical in terms of purpose, and the research method, in terms of data analysis, is quantitative. It is analytical. The statistical population of the research includes all the employees of Pasargad Bank, and the Cochran-Orcutt formula is used to obtain a statistical sample of 384 people. Since the statistical population of this research is homogenous, therefore, we use random sampling method, and since each member of the society has the same chance to be selected, we use simple random sampling. The data collection tool in this research is a questionnaire. . To check the content validity and face validity of the questionnaire in this research, the opinions of the supervisor and the esteemed consultant were used and Cronbach's alpha method was used to check its reliability. For data analysis, spss, Smart PLS software was used. The results of the hypothesis test showed that the value of the activity diversity index is 78%, human capital efficiency is 91%, and human performance is 82%, the fit of the model is appropriate. It shows the positive and meaningful impact of the diversity of banking activities on the financial performance of banks, considering the role of human capital efficiency. Manuscript profile -
Open Access Article
524 - Management of energy consumption in buildings using renewable materials and new materials in hot and dry climates
seyed esmaeil sadati saeed moghimi mahdi ezadiSaving energy is one of the most important challenges in the world today. In recent years, growing concerns about the environmental consequences of energy consumption and global warming have doubled in importance. On the other hand, the share of the construction sector MoreSaving energy is one of the most important challenges in the world today. In recent years, growing concerns about the environmental consequences of energy consumption and global warming have doubled in importance. On the other hand, the share of the construction sector in the energy consumption of countries is significant and for this reason, in recent decades, in most industrialized countries, basic measures have been taken to improve consumption patterns, using various tools such as regulations. One of the most important energy consumed is electrical energy, which is one of the most basic energy sources of buildings and plays an important role. The complex problems and processes of electricity generation and transmission, the pollution generated by the production of fossil fuels, and other cases have prompted researchers to seek solutions to reduce energy consumption or, in other words, optimize energy consumption. In this study, some practical solutions to move towards energy saving have been investigated and the effect of using materials with different heat transfer coefficients in external walls according to Semnan weather conditions on the modeled building and to analyze the cooling and heating load of the building. Compared with renewable materials. Finally, the external wall, using a 20 cm straw block, has reduced the annual energy consumption compared to perforated pottery, autoclaved concrete, and Article 19 of the National Regulations has resulted in 3%, 0.6%, and 2.76%, respectively. Manuscript profile -
Open Access Article
525 - Evaluation of heat transfer performance of two-phase nanofluid flow in a parabolic solar collector with eccentric absorber and solid insulation
mojtaba jamiati Hossein PourmohamadianIn this study, the flow field analysis and heat transfer of two-phase nanofluid flow in a parabolic solar collector with eccentric absorber and solid insulation have been investigated. The fluid used in this collector is nanofluid of water - Aluminium. The main aim of c MoreIn this study, the flow field analysis and heat transfer of two-phase nanofluid flow in a parabolic solar collector with eccentric absorber and solid insulation have been investigated. The fluid used in this collector is nanofluid of water - Aluminium. The main aim of current study is to investigate the effect of using eccentric absorber system and solid insulation on the energy efficiency of linear parabolic collectors. For this purpose, energy efficiency has been measured and presented for different states (including ambient temperature, fluid inlet temperature, nanofluid volume fraction, nanoparticle diameter and geometric characteristics). The study is in turbulent flow regime and in order to model it, the k epsilon turbulence model has been used. In order to solve the survival equations, the finite volume method and the SIMPLE C algorithm have been used. Different optimal models are introduced in terms of having the highest energy efficiency, and the best model is determined. Based on obtained results, the highest energy efficiency in different Reynolds is related to the novel collector and two-phase model(TPM). In the next positions, respectively, are the novel collector and single-phase model(SPM), the basic collector and two-phase model, and at the end, the basic collector and single-phase model. It was also found that as the Reynolds number increases, all modes have an uptrend. The maximum amount of energy efficiency was for the novel collector and the two-phase model at Reynolds 15000, Which is equal to 68%. Also, the maximum energy efficiency for eccentricity 20 mm at Reynolds 15000, which is equal to 74.9%. Manuscript profile -
Open Access Article
526 - Construction and implementation of a cooling system to increase the efficiency of photovoltaic panels using the half pipe method
Ali Sharafi Ebrahim Aghajari Alireza TavakoliCooling panels using the half pipe method is one of the most important methods used to increase the efficiency of solar resources. In this article, a practical project for cooling a solar panel based on the half-pipe method has been carried out with the aim of increasin MoreCooling panels using the half pipe method is one of the most important methods used to increase the efficiency of solar resources. In this article, a practical project for cooling a solar panel based on the half-pipe method has been carried out with the aim of increasing the efficiency of solar panels. In the proposed design, the half-pipes are installed directly on the bottom surface of the panel, and the available fluid, which is water in this technique, is inside the half-pipes and in direct contact with the panel, and performs the cooling process in a spiral on the surface of the panel. Two panels have been used to compare the performance of a panel equipped with a half pipe and a panel without this system, the panels have dimensions of 150 x 180 and power of 200 watts. Three sensors have been used to measure the temperature of the panels and the environment. The results show that using the half-pipe method can reduce the temperature of the panels by about 10 degrees Celsius. In addition, the results show a 36% increase in solar panel efficiency by using the half-pipe method. Manuscript profile -
Open Access Article
527 - Policy-making about the efficiency of detailed plans with an emphasis on livability (Case Study: District 1 of Tehran)
hadiseh moazzami goudarzi Ali TavakolanThe city as a geographical, economic, political and sociological reality in each period of its development has been influenced by each of these factors and has influenced each of them. The complexity of each of these factors has created the complexity of the city as the MoreThe city as a geographical, economic, political and sociological reality in each period of its development has been influenced by each of these factors and has influenced each of them. The complexity of each of these factors has created the complexity of the city as their spatial crystallization. Certainly, organizing and regulating the city and how it grows and evolves requires the thematics of the city and urban issues and then planning for it. In general, the belief in improving the environment is one of the sources of the idea of urban planning and perhaps its most important ideology. The purpose of this study is to evaluate the effectiveness and efficiency of the detailed plan of Tehran Region 1 with emphasis on livability. The research method is applied in terms of purpose and descriptive-analytical methodology. In order to evaluate the content validity of the assessment tool, the questionnaires were provided to experts and specialists in the field. Findings show that the structural variable was the only variable that could only directly affect the efficiency and effectiveness of the detailed design. According to the results of regression analysis, the legal and executive variables have both directly and indirectly affected the efficiency and effectiveness of the detailed plan. The direct and indirect effects for the legal and executive variables are 0.429 and 0.201, respectively. Manuscript profile -
Open Access Article
528 - Measuring political efficiency in the Rouhani government based on the indicators of the rule of law and the legitimacy of the executive branch
Sharareh Abdolhoseinzadeh Ali ali hoseini Siamak BahramiOne of the most important things to know the government is to measure its efficiency. Efficiency expresses the degree of success of the government, especially in the executive branch, to achieve its specific goals, and it also expresses the degree of its effectiveness, MoreOne of the most important things to know the government is to measure its efficiency. Efficiency expresses the degree of success of the government, especially in the executive branch, to achieve its specific goals, and it also expresses the degree of its effectiveness, which comes about through different institutions and with different mechanisms. In this research, Rouhani's government, known as the government of prudence and hope, has been examined considering two important indicators of rule of law and legitimacy. The main question of this research is how the efficiency of the government, based on two indicators of rule of law and legitimacy, was measured in Rouhani's government and how was it? This research, using descriptive-analytical method, has come to the conclusion that in the field of rule of law index, Rouhani's performance was always in the red state and his limited efforts to improve the existing indicators in this field were met with failure. Regarding the legitimacy of the Rouhani government, it was related to the position of the general public. At this point, the majority of Iranian citizens reached the stage of indifference towards the country's political issues, especially participation in the elections, due to the weak management performance of the government and the type of protests faced in 1996-1998. Manuscript profile -
Open Access Article
529 - Enhancing sugar beet yield: Exploring transplanting's impact on weed control and production efficiency
ولی اله یوسف آبادی Ali Saremirad Babak Babaei Shahram KhodadadiThe competition between weeds and sugar beets for essential resources ultimately impacts the sugar beets yield and quality. Hence, it is crucial to implement effective weed control measures to preserve the desired yield and quality of sugar beets. To assess the impact o MoreThe competition between weeds and sugar beets for essential resources ultimately impacts the sugar beets yield and quality. Hence, it is crucial to implement effective weed control measures to preserve the desired yield and quality of sugar beets. To assess the impact of various cultivation and weed control methods on weed control effectiveness, a study was conducted using split plots in a randomized complete block design with four replications over two consecutive crop years, 2021 and 2022, in Karaj. The findings revealed significant year-to-year variations affecting product yield and quality. The interaction between the year and cultivation method notably influenced molasses sugar, K+, and alpha amino N. The primary impact of weed control was observed solely on weed fresh weight. Its interaction with the year's environmental conditions affected root yield, sugar content, Na+, K+, alpha amino N, white sugar yield, extraction efficient of sugar, molasses sugar, and leaf area index. Additionally, the interaction of weed control with cultivation method and year conditions significantly influenced sugar content, K+, extraction efficient of sugar, and molasses sugar. Notably, manual weeding and herbicide spraying led to improved weed control, resulting in a suitable sugar beet yield. In conclusion, the study underscores the pivotal role of weed control in determining both the quantitative and qualitative yield of sugar beets. Manuscript profile -
Open Access Article
530 - The role of creativity and the factors affecting the performance of public relations Social Security
Mohammad Reza Rasoli Mohammad Reza HedayatiAbstract of the thesis (includes summary, purposes, methods and results) This research aims to investigate the performance of public relations and factors influencing it in social security organization. This research is carried out to fined effective factors such as all MoreAbstract of the thesis (includes summary, purposes, methods and results) This research aims to investigate the performance of public relations and factors influencing it in social security organization. This research is carried out to fined effective factors such as allocating needed budget, the view of managers to the public relations position, having the strategically communicative program, the performance of Intra and extra -organizational communications and amount of using modern communicative technologies in efficiency of public relation from the view point of officials of public relations of offices and cure management around the country. In this research, 65 questionnaires with 31 questions with 5-point continuum about efficiency, one open question and 6 questions about characteristics and the features of respondents are sent by using the survey method without sampling, and data is gathered and analyzed by providing the descriptive tables and T-test (single sample). In this research, respondents knew the view of managers to the public relations position, having the strategically communicative program, allocating needed budget, the performance of Intra and extra –organizational activities, using modern communicative technologies as effective factors in efficiency of public relations. Manuscript profile -
Open Access Article
531 - A Study into the Relationship between Emotional Creativity and Self-efficacy with Academic Performance: Mediating Role of Achievement Motivation
Ali Mohammad Rezaei Seyedeh Zeynab Hossani Manesh Shahrokh Makvand Hossani Afzal Akbari BalootbanganAbstract Background: Creativity is one of the most important factors that are related to academic performance. Creativity means unifying all efforts of a human. Aim: The aim of present research was to show the mediating role of achievement motivation in the relationship MoreAbstract Background: Creativity is one of the most important factors that are related to academic performance. Creativity means unifying all efforts of a human. Aim: The aim of present research was to show the mediating role of achievement motivation in the relationship between emotional creativity, self-efficiency and academic performance of high school female students. Method: A sample comprising of some 350 high school students (age 16-19) were selected using a multistage cluster sampling method. Instruments were included Emotional Creativity Inventory (ECI), Sheerer Self efficacy Inventory, as well as, Hermens Achievement Motivation Questionnaire. The data were analyzed by Path Analysis and Pierson correlation. Results: Results showed positive and significant relation between achievement motivation and academic performance. Positive relation was also evident between self-efficiency and intermediation of achievement motivation and academic performance directly and indirectly. In addition, there is positive relation between emotional creativity and achievement motivation; but its direct and indirect effect on academic performance was not significant. Conclusions: Overall, these results suggested 43% variance of motivation is represented by variations of self-efficiency and emotional creativity and 10% variation of academic performance has been represented by variations of self-efficiency and achievement motivation. Manuscript profile -
Open Access Article
532 - Possible of arsenic removal from environment using aquatic plants in north of Khuzestan
Ali Shir-Afroos Abdolmajid Liaghat Mohammad Manshoori Ebrahim Pazira Hosein SedghiAbility of aquatic plants as a tool for environmentally friendly municipal, industrial and agricultural wastewatertreatment has been attracted to attention in the world. In this study the possibility of absorption of arsenic andheavy metal contaminated industrial wastew MoreAbility of aquatic plants as a tool for environmentally friendly municipal, industrial and agricultural wastewatertreatment has been attracted to attention in the world. In this study the possibility of absorption of arsenic andheavy metal contaminated industrial wastewater treatment to this metal has been studied by four species ofaquatic plant Phragmites australis, Typha latifolia, Scirpus bulrush and Alisma plantago. Therefore, through thefirst pot experiment and infect cultured at three different levels of arsenic in three replicates in 60-day period, inthe form of a completely randomized design. Results showed that Phragmites sp. and Scirpus sp. were highaccumulation of arsenic, with 119.55 and 65.25 mg/kg of dry matter at the end of plant growth period,respectively in underground organs. Accumulation in the underground organs showed significant difference withaccumulation in the shoot. The two species chosen at this stage were planted in constructed ponds withdimensions 5 m long, 0.5 m wide and 0.4 m height with the isolation bed and their drainage tubes placing. Apond was conducted as a control (no plant) and intended to test the effect of system type and retention time(retention time of five 1, 3, 7, 10 and 14 days) on arsenic removal efficiency at the level of 100 mg/kg soilpollution in three replications. The results of this section showed that the effect of system type and retention timeon the removal efficiency of constructed was significant but not for interaction effect of two factors. Manuscript profile -
Open Access Article
533 - Impact of Capital Market Efficiency Based on the Theory of Limitation on the Total Return on Stock Rates
Morteza Hasanvand Akbar Bagheri Ali Asghar lotfi -
Open Access Article
534 - The Exploration of the Effective Management Characteristics on the Greenhouse Efficiency in the Greenhouse Town of Zaporizhzhia
Maryna Vyshnevska Nataliia Gerasymchuk Vasil Sabluk Ziv Baida Myrin Borysenko Oksana Voitovska -
Open Access Article
535 - Study of Management Metrics Affecting Greenhouse Efficiency (Greenhouse Estate of Savojbolagh County)
Seyedeh Nafiseh Mohammadi Yousefnejad -
Open Access Article
536 - perimental Study on the Performance of a New Type Solar Air Heater with Cross-Corrugated Surface on Different Environmental Conditions
نادر رهبر محمد جوادی نیا ایزدی پژمان ظهوریان ایزدیIn This paper, the effect of using cross-corrugated surface as an absorber plate in a solar air collector was experimentally investigated. Black plate geometries of air heater was V-type, while some vertical baffles were used to conduct air flow between surfaces. With t MoreIn This paper, the effect of using cross-corrugated surface as an absorber plate in a solar air collector was experimentally investigated. Black plate geometries of air heater was V-type, while some vertical baffles were used to conduct air flow between surfaces. With these modification turbulence regime and heat transfer enhancement were achieved. A centrifugal fan was also used to produce 0.003-0.01 kg/s air flow. Moreover different position angles (30, 45 and 90 degrees) were used to evaluate the performance of the system. The results showed that with these modification the Nusselt number was 5 times greater than before. Furthermore, a new correlation was proposed which has a good accuracy in estimation of Nu number. Manuscript profile -
Open Access Article
537 - Development of solar air collectors for drying applications
Mohammad Mehdi Ebn Ali Ali HeydaryIn this study, three types of solar air collectors (flat plate, finned, and v-corrugated) have been experimentally investigated in order to achieve an effective design which can be appropriate for a solar dryer. The experiments have been performed according to the ASHRA MoreIn this study, three types of solar air collectors (flat plate, finned, and v-corrugated) have been experimentally investigated in order to achieve an effective design which can be appropriate for a solar dryer. The experiments have been performed according to the ASHRAE standard and under real climatic conditions of Semnan (35° 33′ N, 53° 23′ E), Iran. Over a broad range of operating and design conditions, the performance of all three collectors have been studied. Based on the results, v-corrugated collector and flat plate one found to be the most and least efficient, respectively. Moreover, the collectors have also been studied in double pass mode in order to examined the extent in efficiency improvement. Manuscript profile -
Open Access Article
538 - Review of research in Exergy analysis and energy of solar water desalination
غلامرضا خسروی هادی کارگر شریف آبادIn this paper disburse exergy analyse and energy analyse per use from the exiting model at some of solar stills and mechanism of on solar still constituent glass cover,collector(absorber sun energy),inlet brine water and sump survey by exergy analysis. also exerjy and e MoreIn this paper disburse exergy analyse and energy analyse per use from the exiting model at some of solar stills and mechanism of on solar still constituent glass cover,collector(absorber sun energy),inlet brine water and sump survey by exergy analysis. also exerjy and energy balance reffered from the other parts of solar still. And express dominant relations.also styles improvement efficiency at other parameters at solar stills by sevral styles taken from exergy and enerjy described and results will represent. Finally we will try with a short comparsion recognized ineffective portion in the solar stills and explain ways to improve efficiency. Manuscript profile -
Open Access Article
539 - Numerical simulation of energy absorbing bumpers two cylindrical tube filled with polyurethane foam
mohammadreza RezaeiAbadeh Mohammad Javad RezvaniThe purpose of this article, in order to determine the impact of this type of attraction is thin-walled tubes as energy absorbing system. The twin-tube models after applying a force inside each sink. So, in order to achieve this goal and pipes of different diameters of MoreThe purpose of this article, in order to determine the impact of this type of attraction is thin-walled tubes as energy absorbing system. The twin-tube models after applying a force inside each sink. So, in order to achieve this goal and pipes of different diameters of pipe rings and simple tube, The thickness of the ring pipes and tubes, all with the impact of foam on bumpers are considered on cylindrical tube. Therefore, using numerical simulations by Abaqus software to evaluate the impact parameters, including Specific Energy Absorption (SEA) and Crush Force Efficiency (CFE) as discussed testing purposes. The energy absorbing system can be used in the aerospace industry, shipbuilding, automotive, railway industry and elevators used to absorb impact energy. Finally, appropriate geometric parameters and the best examples of criteria considered with respect to the objectives, are introduced Manuscript profile -
Open Access Article
540 - Numerical investigation of energy absorption semi apical angel in conical grooved tubes under dynamic axial load and comparing quasi-static and dynamic loading
Nima Asadi Dehmirahmadi Mohammad Javad RezvaniThe purpose of this article is to determine energy absorbing of empty conical tubes. In these innovated models, there are a handful of rectangular grooves around the inner and outer surface of the tube. In this study, effects of number of grooves and their semi apical a MoreThe purpose of this article is to determine energy absorbing of empty conical tubes. In these innovated models, there are a handful of rectangular grooves around the inner and outer surface of the tube. In this study, effects of number of grooves and their semi apical angel on Energy Absorption, Specific Energy Absorption (SEA), maximum crush load and Crush Force Efficiency (CFE) are considered. The energy absorbing system can be used in the aerospace industry, shipbuilding, automotive, railway industry and elevators used to absorb impact energy. Finally, appropriate geometric parameters and the best examples of criteria considered with respect to the objectives, are introduced. Manuscript profile -
Open Access Article
541 - Numerical investigation of energy absorption of conical grooved tubes under dynamic axial load
Nima Asadi Dehmirahmadi محمدجواد رضوانیIn this study, Numerical investigation of energy absorption of conical grooved tubes under dynamic axial load by LS DYNA was considered. In order to achieve axisymmetric collapse mode inner and outer grooves were created around the surface of conical tubes. The purpose MoreIn this study, Numerical investigation of energy absorption of conical grooved tubes under dynamic axial load by LS DYNA was considered. In order to achieve axisymmetric collapse mode inner and outer grooves were created around the surface of conical tubes. The purpose of this study was consideration of the effects of number of grooves and grooves deeps on energy absorption and crush force efficiency. The results indicate that with the increase in number of grooves the collapse modes would not change. In addition to this, with the increase in number of grooves maximum crush load and collapse modes decrease but the force-displacement curves would be smoother Manuscript profile -
Open Access Article
542 - Numerical investigation of energy absorption of cylindrical grooved tubes under dynamic axial load
Mojtaba Karamali Mohammad Javad RezvaniIn this study, numerical investigation of energy absorption of cylindrical grooved tubes under dynamic axial load by LS DYNA was considered. In order to achieve axisymmetric collapse mode inner and outer grooves were created around the surface of cylindrical tubes. The MoreIn this study, numerical investigation of energy absorption of cylindrical grooved tubes under dynamic axial load by LS DYNA was considered. In order to achieve axisymmetric collapse mode inner and outer grooves were created around the surface of cylindrical tubes. The purpose of this study was consideration of the effects of number of grooves on energy absorption and crush force efficiency. The results indicate that with the increase in number of grooves the collapse modes would not change. In addition to this, with the increase in number of grooves maximum crush load and collapse modes decrease but the force-displacement curves would be smoother. The results of this study can be used in automobile, railway and aerospace industries. Manuscript profile -
Open Access Article
543 - Effect of porous layer on the efficiency of a single slope solar still-Experimental investigation
Nader Rahbar Ali Khosh AhangIn this research, the effect of porous layer on the efficiency of a single slope solar still is studied, experimentally. Accordingly, two single slope solar stills with same sizes containing conventional and modified by using porous layer are fabricated and tested, simul MoreIn this research, the effect of porous layer on the efficiency of a single slope solar still is studied, experimentally. Accordingly, two single slope solar stills with same sizes containing conventional and modified by using porous layer are fabricated and tested, simultaneously. Black sponge rubber with low heat capacity and wick characteristic is selected as porous material. All experiments were performed in Semnan with geographical coordinates of 35° 33' N, 53° 23' E, Iran. Results showed that daily total water productions enhance by using sponge in solar still. Daily total water productions are 3263 and 3829 cc/m2 for conventional and modified stills, respectively. Accordingly, modified still produces 17.35% more distilled water in comparison with conventional one during one day. There is a direct relationship between trends of daily efficiencies of stills and trends of surrounding temperature or solar radiation intensity. Manuscript profile -
Open Access Article
544 - A literature review on the effect of using porous materials and Nanoparticles on improving of the performance of solar stills
Nader Rahbar Ali Khosh AhangDrinking water scarcity has become one of the main challenges of human societies in recent years. Most of the water resources are stored as the non-drinkable saline water or are frozen in the poles. Therefore, they cannot be used directly for drinking. This issue indica MoreDrinking water scarcity has become one of the main challenges of human societies in recent years. Most of the water resources are stored as the non-drinkable saline water or are frozen in the poles. Therefore, they cannot be used directly for drinking. This issue indicates the importance of using appropriate techniques for water purification. One of these techniques is the usage of solar stills that can be used in remote tropical areas. The simple structure, low cost of manufacturing, and the usage of solar energy as a clean source is some benefits of this kind of equipment. The main problem of solar stills is their low efficiency. The researchers in this field used many active and passive methods to increase the efficiency of this device. In this research, two passive techniques used for enhancing the efficiency of solar stills containing usage of porous materials and nanoparticles are reviewed. The results of the research in these fields are briefly presented. Finally, based on the literature review, some suggestions for future works are provided. Manuscript profile -
Open Access Article
545 - Best Selection Design in Air Distribution of Data Centers
Mohammadamin Mojavery Agah khalil Mojaveryagah Alireza SaraeiNowadays, so much heat has been generated in data centers which is caused by many electronic devices. This generated heat has been increased proportionally with the number of racks in IT rooms .In other hands, the power consumption of IT cooling system is more than 43% MoreNowadays, so much heat has been generated in data centers which is caused by many electronic devices. This generated heat has been increased proportionally with the number of racks in IT rooms .In other hands, the power consumption of IT cooling system is more than 43% of total electrical consumption in data centers, hence the technology of its cooling systems is very important. Selection of cooling system design should provide the most efficiency and the least power consumption. In this paper, data centers with raised floor or without raised floor will be considered and 9 air distribution procedures for air cooling of IT rooms will be discussed and will be compared. According to the number of IT’s racks and power consumption of IT’s cabinets, the best selection of air distribution options will be determined .by the results of this paper , the clients of data centers could choose the best cooling system options which are appropriate with the number of racks and the power heat generation in data centers. Manuscript profile -
Open Access Article
546 - A review of energy efficiency in buildings by phase change materials and intelligent management system
mehdi abdoos Abdollah Khalesi Doost Hadi Kargar SharifabadOne of the most important issues in the world today is energy saving, which in the construction industry, proper thermal insulation is one of the solutions to prevent energy loss. Also, the use of new and suitable insulation materials helps us to achieve this. Energy cr MoreOne of the most important issues in the world today is energy saving, which in the construction industry, proper thermal insulation is one of the solutions to prevent energy loss. Also, the use of new and suitable insulation materials helps us to achieve this. Energy crisis, global warming and other environmental issues have always been the main motivation for researchers and engineers to look for new ways to reduce building energy consumption. Recently, the use of phase change materials to increase the thermal mass of the building has received much attention. Phase changers are organic or inorganic compounds that have the ability to absorb and store large amounts of heat energy within themselves. Due to this unique feature, using these materials can naturally delay the transfer of heat to the building for several hours during peak hours of energy consumption and therefore closer to the goal of optimizing energy consumption in the building. The use of phase change materials in the construction industry along with the proper use of the capabilities and physical properties of materials, was introduced in the world several decades ago and is now known in developed countries, while in our country the research and application of these materials in the construction industry remains almost unknown. The purpose of this article is to introduce and provide suggestions for using phase change materials to store and reduce energy consumption in the building. Manuscript profile -
Open Access Article
547 - Improving Energy Conversion Efficiency in Pest-Detector WSN Environments Using Genetic Programming-Based Data Aggregation
Mohammad Ahmadinia Fahimeh AzampourWireless Sensor Networks (WSNs) have numerous applications in agriculture, including pest detection to ensure high crop yields. However, energy optimization is a major challenge for WSNs, particularly with regard to the energy consumption of sensor nodes. To address thi MoreWireless Sensor Networks (WSNs) have numerous applications in agriculture, including pest detection to ensure high crop yields. However, energy optimization is a major challenge for WSNs, particularly with regard to the energy consumption of sensor nodes. To address this challenge, in this paper, is proposed a novel approach for improving energy conversion efficiency in WSNs for pest detection in agriculture environments, using genetic programming-based data aggregation. The proposed approach is implemented in MATLAB software, and the results are compared with previous works to validate its effectiveness in improving energy conversion efficiency. By optimizing energy conversion, the proposed approach can enhance the accuracy and effectiveness of pest detection while minimizing energy consumption, prolonging the lifespan of sensor nodes, and supporting sustainable and eco-friendly agriculture practices. Manuscript profile -
Open Access Article
548 - Feasibility of implementing the spatial representation of resources using GIS components in general libraries of Guilan province
Mitra Ghiasi Hamidreza Tamadon Seyed Ali Asghar RazaviDue to technological developments, access to remote resources in libraries is a necessity and should be considered as requirements. For public libraries with regard to their mission it is particularly important. Therefore, the present study aimed to evaluate the feasibi MoreDue to technological developments, access to remote resources in libraries is a necessity and should be considered as requirements. For public libraries with regard to their mission it is particularly important. Therefore, the present study aimed to evaluate the feasibility of implementing spatial representation of resources in Guilan public libraries by GIS. The research method is applied in terms of purpose and analytical-survey data collection. All public libraries of Guilan province with 83 items were considered as statistical population. Statistical population included library managers (81 persons) and librarians (67970 persons). The sampling method for the managers and librarians was census and systematic random stratified for members. The sample size for the managers was equal to the statistical population and for members were 382 persons by using the Cochran formula. The research instrument consisted of three types of questionnaires (effectiveness, efficiency and comfort). The validity of the questionnaires was checked by referring to the GIS experts. The reliability of the instruments with using Cronbach's alpha for effectiveness questionnaire was 0.71, Comfort = 0.73 and Efficiency 0.88, respectively. Descriptive and inferential statistics has been used for data analysis by SPSS software. The results showed that there is no significant difference between present and expected conditions in effectiveness (0.933) and efficiency (0.460) but there is significant difference in the comfort (0.000). Thus, the libraries under study have no problem in terms of effectiveness and technology efficiency, and if the software is properly designed the users could remotely locate the resources of the library. Manuscript profile -
Open Access Article
549 - Spatial Evaluation of Energy Performance at Neighborhood Scale Case study: Sanandaj city
Farnaz Ghazi Farzin Charehjoo Mahta Mirmoghtadaee -
Open Access Article
550 - Finding the Best Orientation of the Educational Buildings in Hot Arid Regions in Iran, in order to achieve theOptimum Annual Energy Consumption, Using Computer Simulation (Case Study: a Double Class School in Zahedan)
Hamid Aibaghi Esfahani Kourosh Momeni Faramarz Hassan Pour -
Open Access Article
551 - Improving the energy efficiency of existing residential buildings by applying passive and cost-effective solutions in the Hot and humid region of Iran
Amin Mohammadi Joseph Daraio -
Open Access Article
552 - The effect of external and internal shading devices on energy consumption and co2 emissions of residential buildings in temperate climate
Samira Razazi Fatemeh Mozaffari Ghadikolaei Raheleh Rostami -
Open Access Article
553 - Multi-Objective Optimization to Increase Daylight Efficiency in Rural Buildings using Passive Systems (Case Study: Vernacular Houses in Kang Village)
Hooman Dehvari Seyed Majid Mofidi Shemirani -
Open Access Article
554 - A Comparative study on the Role of Energy Efficiency in Urban Planning Instruments of Iran and Germany
Mahta Mirmoghtadaee Ing. Seelig -
Open Access Article
555 - The Role of Functional Flexibility to Improve Energy Efficiency in Energy Consumption of the Case Borojerdiha house in Kashan
Mohammadjavad Mahdavinejad Leyli Hashemi Rafsanjani -
Open Access Article
556 - A Network Data Envelopment Analysis Approach for Efficiency Measurement of Poultry Industry Production Chains
Ali Taherinezhad Alireza Alinezhad Saber Gholami Mahsa Abdolvand -
Open Access Article
557 - The comparison between self efficiency with burnout faculty members
hasan amirkhosravi mohsen tavakoli esmaeel alimohamdi masume agha afsharAbstract: Self-efficacy, mechanism necessary for man to manipulate and control events that affect his life Materials and Methods : Due to the descriptive nature of the research methodology as a field , with two questionnaires efficacy and burnout . The population consis MoreAbstract: Self-efficacy, mechanism necessary for man to manipulate and control events that affect his life Materials and Methods : Due to the descriptive nature of the research methodology as a field , with two questionnaires efficacy and burnout . The population consisted of full-time faculty members in Kerman Azad University Thsyly1392-1391 involving 349 patients formed. Simple random sampling the number of samples based on 186 Morgan estimated that the researcher examined 190 as an example . In inferential statistics, according to the research objectives and parameters estimation and prediction of statistical tests of Pearson correlation coefficients , and t-test for independent groups was used. To analyze the data and calculate the results of the statistical package version 16 spss significant at p <0/05 used.Finding:.No statistically significant differences in efficacy were observed in male and female faculty members (p =0/711).statistically significant differences were observed in male and female faculty members Burnout (p =0/343).Concluded: women cultural factors, family, wrong perception of the ability Hadashtn high or low expectations, the attitude of society and social institutions, increasing the number of students and number of classes, teaching is love Shortage of personnel and inappropriate demands and burnout caused by the effect of gender on efficacy variables.Keyword: self efficiency , burnout, faculty members Manuscript profile -
Open Access Article
558 - The relationship between teaching agility and justice, trust and educational commitment Mediated belief in the effectiveness of teacher teaching (Case study; Secondary school students in Isfahan)
Farhad Shafiepour MotlaghThe aim of the present study was to investigate the relationship between teaching agility and justice, trust and educational commitment through the mediation of belief in the effectiveness of teacher teaching. The research method was descriptive-correlational. The stati MoreThe aim of the present study was to investigate the relationship between teaching agility and justice, trust and educational commitment through the mediation of belief in the effectiveness of teacher teaching. The research method was descriptive-correlational. The statistical population included all high school students in the city of Isfahan in the academic year of 1399-99 in the number of 50707 people. The sampling method was a multi-stage cluster in which 382 people were randomly selected for research based on Morgan-Krejcie sample size formula. The research tool was based on 5 categories of questionnaires, which are: 1. Questionnaire of belief in teacher teaching efficiency 2. Questionnaire of agility in teaching 3. Questionnaire of educational justice 4. Questionnaire of educational trust and 5. Questionnaire of educational commitment. Descriptive statistics (frequency, percentage, mean) and inferential statistics (Pearson correlation tests, stepwise multiple regression and structural equation model) were used to analyze the data. In general, the results showed that there is a significant relationship between teaching agility with justice, trust and perceived educational commitment at the level of P <0.05. Belief in teacher teaching efficiency mediates the relationship between teaching agility and perceived justice, trust, and perceived educational commitment at the P <0.05 level. The experimental model of the research had a relatively good fit. Manuscript profile -
Open Access Article
559 - Evaluation model of external efficiency of management of industrial fields in the technical and professional branches of education in Fars province
Samaneh Soltani gharghani Hamid reza Motamed Alireza Ghasemi Zad pari mashayekhThe main goal of this research was to present a model for evaluating the external efficiency of the management of industry fields in the technical and professional branch of education in Fars province. This research was conducted as a qualitative research based on the d MoreThe main goal of this research was to present a model for evaluating the external efficiency of the management of industry fields in the technical and professional branch of education in Fars province. This research was conducted as a qualitative research based on the data theory of the foundation. The statistical population includes education and training experts in the technical and professional field, directors of conservatories and assistants and art students of Fars province in 1399-1400, whose number is 650. The work steps were based on the grounded theory method, which included the (open, central, and selective) coding paradigm. From the data of this research, from a total of 628 initial codes and finally after the tenth reduction and integration to reach conceptual density, 350 initial codes were obtained from interviews with participants, which continued until the saturation stage. And in the next stages of the analysis, the main phenomenon or category called the external efficiency of the fields of industry in the technical and professional branch was obtained. The results showed that a set of factors, including causal conditions, intervening conditions, background, strategies, and the consequences of these factors affect the quality of the phenomenon and the main category or the external efficiency of the fields of industry in the technical and professional branches. It is impressive. Manuscript profile -
Open Access Article
560 - Investigating the extent of employees’ motivation in cultural department of education ministry and its correlation to their vocational characteristics
nazila karimi mohammad mokhatab ali siyadatThe present study investigates the extent of employees’ motivation in cultural department of education ministry and its correlation to their vocational characteristics. The study is a descriptive-survey study. Aspina’s motivation questionnaire is used to col MoreThe present study investigates the extent of employees’ motivation in cultural department of education ministry and its correlation to their vocational characteristics. The study is a descriptive-survey study. Aspina’s motivation questionnaire is used to collect data. The reliability of the questionnaire was determined to be 0.93. The population consists of 55 employees. Chi-square test and Pearson correlation coefficient are used to analyze the data. The results show that the employees have a high motivation(70.42). The relationship between motivation and vocational characteristics are not confirmed. Manuscript profile -
Open Access Article
561 - The relationship between management skills of managers and their efficiency in the state agencies and head offices in Bojnord in 2008
mahnaz roghani hasan ali bahramzadehThe purpose of this study is to explore the relationship between management skills of managers and their efficiency in the state agencies and head offices in Bojnord in 2008. One major hypothesis and five minor ones are offered. The major one is:"There is a relationship MoreThe purpose of this study is to explore the relationship between management skills of managers and their efficiency in the state agencies and head offices in Bojnord in 2008. One major hypothesis and five minor ones are offered. The major one is:"There is a relationship between management skills of managers and their efficiency." The minor hypotheses are as follows: There is a direct relationship between technical skills and human skills and comprehension skills of managers with their efficiency. There is a direct relationship between education level and previous management experiences of managers with their management skills. The population in this study includes 1400 employees of head offices in Bojnord. Sample group includes 302 employees, who were chosen using relative stratified sampling employing Kergesy-Morgan Table. Two questionnaires of management skills and efficacy were given. Therefore, inferential and descriptive study is of correlational type. For data analysis, descriptive data including statistical indexes (distribution table, distribution percentage, graphs and plots) as well as inferential data (horizontal table, step wise and simple regression , Pearson,Spearman were used. For reliability test , Cronbach Alpha Formula was used. The findings show that there is a significant relationship between management skills of managers and their efficiency with the least meaningful value in F-test, smaller than 0.05. The four hypotheses out of five were supported in this study. The fifth one was not supported, i.e., there is no relationship between the previous management experiences of managers and their skills of management. Manuscript profile -
Open Access Article
562 - prioritize the factors effecting efficiency of educational technology in faculty members of Sport Management, Islamic Azad Universities
Iman safaei farideh ashraf ganjouei علی Zareithe present study examines the obstacles facing faculty member’s physical education the efficient use of technology up to date has been paid in 1392. Population of this research included all faculty members (full-time or part-time) at least one of the sports manag Morethe present study examines the obstacles facing faculty member’s physical education the efficient use of technology up to date has been paid in 1392. Population of this research included all faculty members (full-time or part-time) at least one of the sports management courses in Islamic Azad Universities across the country, which is about 1,000 persons. To collect the data, a questionnaire Sport Management and Technology (SMaT, 2007) which consists of 138 questions is the Lonnie Wilson has been used. Validity by obtaining the opinion of experts were confirmed and respected masters. The research was descriptive survey method and the Friedman test was used to prioritize the factors. According to sport management faculty members, student communication technologies in education are a priority. The results of the second hypothesis of this study showed that the factors affecting the choice of technology, there is a significant difference. Therefore, the factors influencing the choice of technology by sport management faculty members, students, and policy needs of the organizational work of the importance and impact is high. The results of the study showed that the fourth hypothesis technological performance of students in a particular technology is significant. The efficiency of the process, sport management students and classroom management technologies provide the highest efficiency Manuscript profile -
Open Access Article
563 - Investigating the Impact of Political Development on Good Governance Based on the Statement of the Second Step of the Islamic Revolution
Mojtaba Malekshahi Garineh Keshishyan Siraki Abdulrahman HassanifarMojtaba Malekshahi[1], Garineh Keshishyan Siraki,[2]*, AbdulrahmanHassanifar[3] Abstract: "Political development" is considered to increase the capacity and efficiency of the political system in resolving conflicts between indivi MoreMojtaba Malekshahi[1], Garineh Keshishyan Siraki,[2]*, AbdulrahmanHassanifar[3] Abstract: "Political development" is considered to increase the capacity and efficiency of the political system in resolving conflicts between individual and collective in­t­e­rests. In recent years, the idea of "good governance" has been proposed to explain the relationship between civil society,government and the private sector,which a­i­m­s to increase the effectiveness and efficiency of the political system. At the end of the fortieth anniversary of the Islamic Revolution, Ayatollah Khamenei issued the strategic document "Declaration of the Second Step" in order to e­l­e­­vate the country and address the concerns of the nation by increasing the effectiveness and efficiency of the political system in relation to individuals. The title of the upstream documents is deeply connected to the ideas of po­li­ti­c­al development and good governance. The purpose of this article is to examine the impact of political development on good governance. In this regard, it is assumed that "the more the indicators of political development in the country increase, the more the goals of good governance in society will be achieved." The research method is mixed, the technique used is survey and documentary studies. The results confirmed the hypotheses. [1]. PhD Student in Political Science (Iran Issues), South Tehran Branch, Islamic Azad University, Tehran, Iran [2]. Assistant Professor, Department of Political Science, South Tehran Branch, Islamic Azad University, Tehran, Iran,Corresponding Author [3].Faculty member of the Institute of Islamic Culture and Thought, Tehran, Iran Manuscript profile -
Open Access Article
564 - Designing and Explaining the Model of Improving the Efficiency of Human Resources Based on the Component of Modern Methods of the Third Millennium
doustali dehghanchachkami Rashid Zolfaghari Saffron fariba hanifiThe importance of the human factor in organizations and its unique role in planning, implementing and monitoring organizational affairs in different fields and levels has made it a strategic factor, and that's why today organizations pay more attention to human resource MoreThe importance of the human factor in organizations and its unique role in planning, implementing and monitoring organizational affairs in different fields and levels has made it a strategic factor, and that's why today organizations pay more attention to human resources as "human capital" than in the past. This article aims to answer this question, what model can be presented to improve the efficiency of human resources based on the components of the modern practices of the third millennium? In terms of the practical purpose, the method of collecting field information, the descriptive implementation method of the mixed exploratory type, the statistical population in the qualitative part of the experts and in the quantitative part included the employees and experts of the technical and professional university in 2013 was 1800 people. The sample size was determined based on the Krejcie and Morgan table of 317 people by stratified random quantitative sampling method and snowball qualitative sampling method. Manuscript profile -
Open Access Article
565 - Compressed Domain Scene Change Detection Based on Transform Units Distribution in High Efficiency Video Coding Standard
Navid Dorfeshan Mohammadreza Ramezanpour -
Open Access Article
566 - Quality Management Approaches and their impact on firms’ financial performance (The Case of EFQM)
Seyyedeh Leyla Samadi AliReza ErajPourAt the national level, attention to quality and efforts to its constant improvement, play the major role in economic development and neglecting these leads to the loss of domestic production and will increase imports. The model of excellence is a tool to reflect a compr MoreAt the national level, attention to quality and efforts to its constant improvement, play the major role in economic development and neglecting these leads to the loss of domestic production and will increase imports. The model of excellence is a tool to reflect a comprehensive image of the organization. These models validate the performance of firms in implementing improvement programs at different period of times and also they are utilized as a driver for organizations and businesses for excellence, growth and earning money. The aim of this study is investigating the effect of the quality management on the Financial Performance Efficiency of companies and the impact of the equipment on the productivity improvements and labor and capital efficiency during the periods before EFQM certification and after that for the period of 1390 to 1393 through semi-longitudinal and cross-sectional data and the Wilcoxon test was used. Results indicate there is not any significant difference among financial variables ROA, ROS and VADLAB on financial performance and as a result, hypothesis based on the impact of EFQM Model on financial performance is rejected. It means the companies have failed in improving their financial performance and only the result of the test of third hypothesis of financial efficiency variable on financial performance has been significant CAPLAB. Manuscript profile -
Open Access Article
567 - Supplier Selection Based on Optimistic and Pessimistic Perspectives
Hosen Azizi Alireza Amir Teymori Reza Farzipour SamenDiscretionary models for supplier efficiency evaluation assume that all criteria are controllable, i.e. they are controlled by the supplier and can change at the discretion of the management. These models do not consider supplier selection in circumstances where some fa MoreDiscretionary models for supplier efficiency evaluation assume that all criteria are controllable, i.e. they are controlled by the supplier and can change at the discretion of the management. These models do not consider supplier selection in circumstances where some factors are non-discretionary. In this paper, we present a data envelopment analysis (DEA) approach for selection of the best suppliers in the presence of non-discretionary factors and imprecise data that considers both optimistic and pessimistic perspectives. The optimistic perspective evaluates suppliers using the optimistic efficiency and can be used for identifying optimistic efficient suppliers, whereas the pessimistic perspective evaluates suppliers using the pessimistic efficiency and can be used for identifying pessimistic inefficient suppliers. These distinct efficiencies are integrated in the form of geometric average efficiencies that provide an assessment of the overall performance of each supplier in multiple criteria compared to other rival suppliers in the same market and therefore can be used as a basis for comparison of suppliers. We show that geometric average efficiencies have more discriminative power than either of the two efficiencies. A numerical example shows the advantages, capabilities, and applications of the proposed DEA approach. Manuscript profile -
Open Access Article
568 - The Effect of Employing Official Automation on Human Resource Productivity
Asghar Sarafizadeh Samaneh AlipourThis article discusses that official automation is one of the important tools to reach useful ways to save time and for the optimum utilization of available resource in an organization. This article aims to identify the effect of employing official automation on the pro MoreThis article discusses that official automation is one of the important tools to reach useful ways to save time and for the optimum utilization of available resource in an organization. This article aims to identify the effect of employing official automation on the productivity of human resources. Using the analyses carried out on collected data, it was concluded that official automation is effective in increasing productivity. Manuscript profile -
Open Access Article
569 - Organizational Diagnosis in Project-Based Companies (Case Study)
Behrouz Zarei Yahya ChaghueeDue to the complex nature of external and internal environment of corporations, their performance is significantly affected by their internal changes. The problem of corporate inefficiency is a global concern and the Iranian Water and Power Resources Development Company MoreDue to the complex nature of external and internal environment of corporations, their performance is significantly affected by their internal changes. The problem of corporate inefficiency is a global concern and the Iranian Water and Power Resources Development Company (IWPRDC) is no exception. A number of problems such as project delay, highproject cost, and low profitability are some cases of deficiency and have forced managers to pay meticulous and scrupulous attention to causes of such deficiencies and find effective alternatives to improve performance. One of the prominent factors is inappropriate structure. Before designing new suitable structure, the managers must identify the main factors that cause inefficiency and determine which of them affects structure. So, corporate diagnose and analysis is an important stage in restructuring project. This paper presents a research to cast light on diagnosing IWPRDC in Iran, tries to represent the collected data through a semantic network, and finally, shows a quantitative network analysis of corporate inefficiency causes. Manuscript profile -
Open Access Article
570 - Presenting a Hybrid Model of Data Envelopment Analysis and Multi-Objective Decision Making to Achieve the Efficiency Score of Decision Making Units in Grey Environment
Alizera Alinezhad Hossen Kakavand Abolfazle Kazemi Ali ShakorlooData Envelopment Analysis Model is one of the methods for measuring efficiency which is used to evaluate homogeneous decision-making units. However, in making use of this technique, we need N times writing formula for n decision-making units in order to achieve the requ MoreData Envelopment Analysis Model is one of the methods for measuring efficiency which is used to evaluate homogeneous decision-making units. However, in making use of this technique, we need N times writing formula for n decision-making units in order to achieve the required efficiency. As a result, it is not possible to compare decision-making units in the framework of a common weight, and the model is of low discrimination power. In otherwise the classic DEA models deal with crisp parameters. Therefore, in the present study, we tried to present common weights for decision-making units by presenting a new model utilizing multi objective decision making and Grey Systems Theory to achieve efficiency of DMUs when the parameters of model are uncertain and only interval of them are defined. Finally, the evaluation results, examples are provided to compare the performance rating DMUs through classical DEA models and the proposed model is discussed. Manuscript profile -
Open Access Article
571 - The Study of the Relationship between Organizational Environment and Bank Branch Efficiency
Daryush Rashidi Shaban FarhodiIt seems that banks as financial institutions have similar tasks and services, but they are different in terms of organizational environment and existing human relations between the staff and participation tasks in decision making and efficiency. The experienced top man MoreIt seems that banks as financial institutions have similar tasks and services, but they are different in terms of organizational environment and existing human relations between the staff and participation tasks in decision making and efficiency. The experienced top managers are aware of the fact that if the existing conditions in banks are not optimal, their overall performance and efficiencies will be eventually unacceptable. In other words, banks with identical and similar facilities will have different levels of success. Therefore, the difference between banks is not merely restricted to the number of clients, facilities and other quantitative characteristics. Each bank has its unique characteristics differentiating it from others. Such an internal characteristic called organizational environment comes from the interactions between the working groups including the boss and the staff, and even it affects not only the behavior of employees, but also that of clients. On the other hand, the efficiency of banks is of great importance, then the study of the effective factors on the efficiency of banks finds a special position. The present study attempts to investigate the relationship between the organizational environment and the efficiency of the banks in Karaj province. Manuscript profile -
Open Access Article
572 - Evaluation of the effect of office automation on efficiency
sara sheikh baklou asghar sarafi zadeh kaveh teimur nejadAn examination of office automation tools in order to achieve important strategies for saving time, responding quickly to customers and increasing accuracy and reducing the cost of doing things is highly significant. The main goal of this paper is to identify the impact MoreAn examination of office automation tools in order to achieve important strategies for saving time, responding quickly to customers and increasing accuracy and reducing the cost of doing things is highly significant. The main goal of this paper is to identify the impact of office automation on efficiency of organizations. The sample consists of 97 managers and experts selected through simple random sampling method. Research Methodology is descriptive and analytical. Instrumentation included a questionnaires whose validity and reliability was estimated. Data were analyzed using t-test and Kruskal –Wallis. The findings confirmed the positive effect of the use of office automation on time, responding quickly to customers and doing things carefully in order to foster efficiency Manuscript profile -
Open Access Article
573 - Forecasting Daily Volatility and Value at Risk with High Frequency Data
Amir Mohammad Zadeh Sahar Masoud ZadeganOne of the key aspects in the financial markets and its development is fluctuation. Fluctuation plays a key role in option pricing, portfolio management and the market sentiment. In general, financial institutions are faced with four various kinds of risk, which are cre MoreOne of the key aspects in the financial markets and its development is fluctuation. Fluctuation plays a key role in option pricing, portfolio management and the market sentiment. In general, financial institutions are faced with four various kinds of risk, which are credit risk, liquidity risk, operational risk, and market risk. The most appropriate method to measure the market risk is by using the VaR (value at risk). Value at Risk is statistical technique used to measure and quantify the level of financial risk within the investment portfolio over a specific time frame. It is always expressed by the monetary amount that is at risk as well as the probability of loss. This research is to predict the VaR for a one-day period in six different industries in which three companies are monitored in each industry. The time periods of the study are 30-minute intervals between 91/11/1 to 92/4/1, in which the GARCH model is used for predicting the variance. The research then checks to see whether the data fits the normal or t-distributions models. Thus, six models are used for six different industries. All six chosen models are deemed proper to predict the coefficients, how fit the coefficients are, and Watson statistic camera. The estimation of the variance and the Var for all models is done at a %95 confidence interval. The research concludes that the companies involved in the basic metals group are more prone to risk and have higher VaR in comparison to other industries. Manuscript profile -
Open Access Article
574 - The Effect of Information Technology (IT) on the Efficiency of Gilan Regional Electric Company
Mohammad Taleghani Mohsen Mohammad Noorbakhsh LangroodiInformation Age and the advent of network society was a breakthrough for versatile changes in different parts and aspects of man’s current life. The main elements of social factors and the new condition of knowledge geometry are focused on the concept of the idea MoreInformation Age and the advent of network society was a breakthrough for versatile changes in different parts and aspects of man’s current life. The main elements of social factors and the new condition of knowledge geometry are focused on the concept of the idea that ICT is located in its center. Nowadays‚ the importance of this technology may be equally considered as important as that of energy resources‚ from steam engine to electricity‚ fossil fuels and even nuclear energy‚ in the era of industrial revolutions. While production and distribution of energy were the main factors and the foundation of industrial societies‚ production and distribution of information are the fundamental elements of informational societies. Accordingly‚ as we are in the information age‚ investment on IT and the resulting productivity have attracted the attention of all companies and organizations. Hence companies try to use IT as much as possible. Nowadays lots of saving in resources and organizational costs are being done by using IT‚ that makes the organization productivity increase. The present study has been done to analyze the impact of IT on productivity of Gilan Regional Power Company from its sample comprises 74 people of the staff and managers of this company selected by judicial sampling method. Also to collect data‚ a questionnaire with 30 questions was used. The findings indicate that using IT in Gilan Regional Power Company has increased this company’s productivity. Finally some suggestions are given to increase the productivity of Gilan Regional Power Company. Manuscript profile -
Open Access Article
575 - Investigating Effect of Gender on Customer’s Loyalty Base on Relationship Marketing Approach
Mohammad Taghi Amini Shahab SohrabiIt seems that banks as financial institutions have similar tasks and services, but they are different in terms of organizational environment and existing human relations between the staff and participation tasks in decision making and efficiency. The experienced top man MoreIt seems that banks as financial institutions have similar tasks and services, but they are different in terms of organizational environment and existing human relations between the staff and participation tasks in decision making and efficiency. The experienced top managers are aware of the fact that if the existing conditions in banks are not optimal, their overall performance and efficiencies will be eventually unacceptable. In other words, banks with identical and similar facilities will have different levels of success. Therefore, the difference between banks is not merely restricted to the number of clients, facilities and other quantitative characteristics. Each bank has its unique characteristics differentiating it from others. Such an internal characteristic called organizational environment comes from the interactions between the working groups including the boss and the staff, and even it affects not only the behavior of employees, but also that of clients. On the other hand, the efficiency of banks is of great importance, then the study of the effective factors on the efficiency of banks finds a special position. The present study attempts to investigate the relationship between the organizational environment and the efficiency of the banks in Karaj province. Key Manuscript profile -
Open Access Article
576 - Explanation of the Model of Performance Evaluation for Human Resource Improvement and Efficiency (Case Study: Tehran municipality)
Maryam QanbariAzar zohreh mousavi kashiHuman resources is the main investment in the service organizations. Performance evaluation is the best option in order to exert influence on employees’ behavior, performance, execution, function, motivation and efficiency. The purpose of this study is to investig MoreHuman resources is the main investment in the service organizations. Performance evaluation is the best option in order to exert influence on employees’ behavior, performance, execution, function, motivation and efficiency. The purpose of this study is to investigate the performance evaluation model of human resource improvement and efficiency in Tehran municipalities. This study involved 55729 employees of the organization. Among these employees 382 person were randomly selected as the samples. The primary questionnaire was generated with Performance Appraisal Questionnaire and Efficiency Factors Questionnaire . Then it has been finalized by Delphi method,extracted factors were confirmed by experts. SPSS software, and Lisrel software were also used in this study. This study was also supported by the TOPSIS which just employed as the priority. The model were summarized in four factors: decision making, Influencing peoples, making relationship, giving–seeking information, and finally a domestic model was provided to help improve the employees’ performance. Manuscript profile -
Open Access Article
577 - Complete Closest-Target Based Directional FDH Measures of Efficiency in DEA
Mahmood Mehdiloozad Israfil Roshdi -
Open Access Article
578 - Measuring the overall performances of decision-making units in the presence of imprecise data
Hossein Azizi Alireza Bahari Rasul Jahed -
Open Access Article
579 - A Ratio-Based Efficiency Measurement for Ranking Multi-Stage Production Systems in DEA
Roza Azizi Reza Kazemi Matin -
Open Access Article
580 - Multi-response Optimization of Grooved Circular Tubes Filled with Polyurethane Foam as Energy Absorber
Shima Shahravi Mohammad Javad Rezvani Ali Jahan -
Open Access Article
581 - Efficiency evaluation of wheat farming: a network data envelopment analysis approach
Reza Kazemi Matin Roza Azizi -
Open Access Article
582 - Analytical Modeling of Specific Energy Consumption and Cost Share in Comprehensive Textile Industry: Case Study of Ethiopia
Dessie Bantelay Muluken Getie Betelhem Bruk Robile Workalemayehu -
Open Access Article
583 - The synchronicity of business processes is the basis of organizing the effective recovery of modern enterprises
Khrystyna Zalutska -
Open Access Article
584 - A New Techno-Economic Real-Time Total Process Performance Indicator
Mohamed Hassan Islam Emara -
Open Access Article
585 - Development Trends and Regualtion Peculiarities of the Housing and Utility Sector in Terms of the Resource Efficiency
Nazariy Popadynets Inna Irtyshcheva Lyudmila Levkovska Alexei Topchiy Marianna Stehnei -
Open Access Article
586 - Evaluation of the Efficiency of the Housing and Utilities Sector and Management of its Investment Framework in Conditions of Authorities Decentralization
Nazariy Popadynets Inna Irtyshcheva Marianna Stehnei Lyudmila Levkovska Alexei Topchiy -
Open Access Article
587 - Research development of logistic efficiency
Budhi Kusuma Qurtubi Qurtubi Anas Hidayat Dian Janari -
Open Access Article
588 - A Non-radial Approach for Setting Integer-valued Targets in Data Envelopment Analysis
Reza Kazemi Matin -
Open Access Article
589 - Forming the Territorial Communities' Local Budgets in Ukraine Under Decentralization: Current Condition and Management Tasks
Khrystyna Patytska Olena Panukhnyk Nazariy Popadynets Irina Kramarenko -
Open Access Article
590 - Design and simulation of plasmonic structure based on suspended graphene sheets For enhancing third harmonic generation.
mohammad javad rahimzacdeh Rahim Ghayour Maryam MohitpourIn this article, based on the nonlinear property of graphene and placing a layer of graphene on a suitable substrate, a plasmonic waveguide based on suspended graphene has been proposed for the first time to enhance third harmonic generation(THG). The role of differen MoreIn this article, based on the nonlinear property of graphene and placing a layer of graphene on a suitable substrate, a plasmonic waveguide based on suspended graphene has been proposed for the first time to enhance third harmonic generation(THG). The role of different parameters of single-layer graphene in resonance properties and nonlinear conductivity of graphene has been determined. It is shown that by changing the electrochemical potential of graphene, it is possible to tune the THG, which is based on the nonlinear properties of monolayer graphene. The finite difference computing method in the time domain (FDTD) has been used for numerical simulation and analysis of the proposed structure in the mid-infrared wavelength range. In our simulations, the conversion efficiency was calculated at about -48.08 dB, which shows a significant increase compared to other sources. Using high quality graphene samples and floating them and finally using Si3N4 dielectric has improved the performance of the proposed structure compared to other references. The result of this work can be used to develop a wide range of important applications such as new frequency generation, signal processing, chemical sensing and switches in the MIR frequency range. Manuscript profile -
Open Access Article
591 - Agronomic and Economic Evaluation of Safflower (Carthamus tinctorius L.) and Chickpea (Cicer arietinium L.) Intercropping under Micronutrient Applications
Yaser Esmaeilian Mohammad Behzad AmiriToday, intercropping as a key strategy of sustainable agriculture, is appreciated by both researchers and farmers in increasing efficiency of environmental resourceing uses, reduce damages due to environmental stresses, and improve the farm income. To this end, a split MoreToday, intercropping as a key strategy of sustainable agriculture, is appreciated by both researchers and farmers in increasing efficiency of environmental resourceing uses, reduce damages due to environmental stresses, and improve the farm income. To this end, a split plot experiment based on a randomized complete blocks design with three replications was conducted at the Research Farm of Gonabad University.Main factor, comprised of 25% safflower + 75% chickpea, 50% safflower + 50% chickpea, 75% safflower + 25% chickpea, and 100% safflower + 100% chickpea intercropping patterns, and sole cropping of the two plants. Subfactors consisted of control (without foliar spray) and foliar spraying of 3 g.lit-1 Fe and Zn. The research results showed that the highest values of branches number (10.5) and head number per plant (22.5) of safflower were achieved from 25% safflower + 75% chickpea and 50% safflower + 50% chickpea intercropping, respectively and the highest seed yield (2070 kg.ha-1) from sole cropping. The branch and head number per plant, 1000-seed weight, and seed yield of safflower were increased significantly due to micronutrient foliar application as compared with control. The plant height (26.4 cm) and seed yield (1739 kg.ha-1) of chickpea showed the highest value in sole cropping while the highest values of pod number per plant (31.9) and seed number per plant (22.2) were obtained from 25% safflower + 75% chickpea intercropping. Micronutrients foliar application improved plant height, pod number per plant, pod length, and seed number per plant of chickpea. The land equivalent ratio values ranged from 1.12 to 1.52. The changes in water use efficiency indices were also higher in all intercropping patterns compared with sole cropping, and the highest value (1.31) was achieved from 75% safflower + 25% chickpea intercropping treatment. The aggressivity index indicated the dominance of safflower over chickpea. All of the intercropping treatments, except for 100% safflower + 100% chickpea pattern, showed real yield increase. The highest value of intercropping advantage (0.51) was obtained from 25% safflower + 75% chickpea treatment while the monetary advantage index (26454751) and the relative total value (1.44) were higher in 100% safflower + 100% chickpea intercropping as compared to the other cropping patterns. Manuscript profile -
Open Access Article
592 - Effects of Chemical and Organic Fertilizers on Nitrogen and Phosphorus Efficiency in Purslane (Portulaca oleracea)
Seyfollah Fallah Fallah Behjat Omrani OmraniTo investigate the effect of nitrogen and phosphorus nutrients from organic and chemical fertilizers sources, on their efficiency in purslane, a field experiment based on complete randomized block design was conducted at the Research Farm of Shahrekord University in 201 MoreTo investigate the effect of nitrogen and phosphorus nutrients from organic and chemical fertilizers sources, on their efficiency in purslane, a field experiment based on complete randomized block design was conducted at the Research Farm of Shahrekord University in 2014. Treatments were 13 t.ha-1 broiler litter (T1), 14.4 t.ha-1 broiler litter (T2), 39 t.ha-1 cattle manure (T3), 16.8 t.ha-1 cattle manure + 150 kg.ha-1 urea (T4), four chemical fertilizer levels equivalent to organic manure treatments, 260+86 kg.ha-1 urea +triple super phosphate, respectively (T5), 287+100 kg.ha-1 urea + triple super phosphate, respectively (T6), 260+200 kg.ha-1 urea + triple super phosphate, respectively (T7), 260+100 kg.ha-1 urea + triple super phosphate, respectively (T8) and control (T0). The results showed that T2 treatment produced 8345 kg.ha-1 of dry matter as compared with those of other fertilizer treatments (P<0.05). This indicate that nitrogen and phosphorus efficiencies in T2 treatment were significantly higher than other treatments (P<0.05). In the mean time, nitrogen efficiency in T5 and T7 were not significantly different. However, phosphorus efficiency in T2 (52.6 %) indicated significant difference as compared with the other treatments. Nitrogen physiological efficiency of treatment in T2 (35.02 kg.kg-1) and T8 (31.6 kg.kg-1), and also P physiological efficiency in T1 and T5 were not significantly different. As a whole, the higher N physiological efficiency and also physiological efficiency of phosphorus in broiler litter reflect the ecological role of organic manure application in the production of purslane. This can also help environmental protection, as well as preventing loss of resources and phosphorus accumulation in the cropland soils. Manuscript profile -
Open Access Article
593 - Evaluation Nitrogen and Radiation Use Efficiency of Wheat (Triticum aestivum) under Irrigation Levels
A. Ghanbari B. Fakheri E. Amiri A. TavassoliWater and nitrogen are among the most important limiting factors controlling yield in crops. With due attention to importance this subject, in wheat a split plot experiment was carried out in the field, using randomized complete block design with three replications unde MoreWater and nitrogen are among the most important limiting factors controlling yield in crops. With due attention to importance this subject, in wheat a split plot experiment was carried out in the field, using randomized complete block design with three replications under different irrigation and nitrogen levels during the cropping season of 2009-10 in Shirvan region. The experimental treatments consisted of four levels of irrigation, I1= optimum irrigation (field capacity, FC), I2= Irrigation at 80% FC, I3= Irrigation at 60% FC and I4= without irrigation which were assign to main-plots, and four levels of nitrogen fertilizers, namely, N1= 0, N2= 100, N3= 175 and N4= 250 kg N/ha to sub-plots. The results of experiment showed that the highest amount of seed yield, biological yield, leaf area index during different growth stages, radiation use efficiency and nitrogen content in whole wheat and seed obtained from treatment of optimum irrigation (I1) and applications of highest nitrogen fertilizer level (N4), but there wasn’t significant different between this treatment with treatment of optimum irrigation and consumption of 175 kg N/ha (I1N3). The lowest values were obtained from treatment of no irrigation and nitrogen (I4N1). For nitrogen use efficiency there was two different conditions. In the first condition, nitrogen use efficiency increased under optimum irrigation (I1) and irrigation at 80% FC (I2) with increasing nitrogen level from N1 to N4. In the second condition, nitrogen use efficiency decreased under irrigation of 60% FC (I3) and without irrigation (I4) with increasing nitrogen level from N1 to N4. Generally, it can be concluded that to obtain the highest yield in region, optimum irrigation is necessary. To obtain highest nitrogen fertilizer consumption and seed yield 250 kg N/ha would be required however there wasn’t significant difference between 250 an 175 kg N/ha applications. Manuscript profile -
Open Access Article
594 - The Measurement of Technical Efficiency and Effective Factors in Cucumber Greenhouse (Case Study: Eastern Azarbayjan Province)
B. Abdollahi H. Raheli M. Taghizadeh M. Kasrani B. NajaflouThe purpose of this study was to estimate technical efficiency of cucumber greenhouses in Eastern Azarbayjan. In economic literature, it means the ratio of maximum output to the inputs. The objective of this research was to determinate the effective factors influencing MoreThe purpose of this study was to estimate technical efficiency of cucumber greenhouses in Eastern Azarbayjan. In economic literature, it means the ratio of maximum output to the inputs. The objective of this research was to determinate the effective factors influencing it's inefficiency. The method of determination of deterministic and stochastic technical efficiency is corrected ordinary least squares (COLS) and maximum likelihood (ML) respectively. The average of technical efficiency in province’s cucumber greenhouse is approximately about 57 and 93 percent for deterministic and stochastic frontier method respectively. Production types had positive influence on technical inefficiency whereas experience of manager have negative influence on technical inefficiency. Manuscript profile -
Open Access Article
595 - Investigation the Effect of Pre- and Post-Emergence Herbicides on Weed Control and Yield of Groundnut (Arachis hypogaea L.)
Somayeh Tokasi Ebrahim Kazerooni MonfaredIn groundnut (Arachis hypogaea L.), less crop canopy during the first weeks of growth favors strong competition with weeds causing significant reduction in yield. To investigate the efficacy of the pre- and post- emergence herbicides in groundnut yield and weed control, MoreIn groundnut (Arachis hypogaea L.), less crop canopy during the first weeks of growth favors strong competition with weeds causing significant reduction in yield. To investigate the efficacy of the pre- and post- emergence herbicides in groundnut yield and weed control, this experiment was carried out in Gilan Agricultural and Natural Resources Research and Education Center in 2017. The experiment was laid out in randomized complete block design with three replications. Treatments consisted Pendimethalin (33% EC), Oxyfluorfen (24% EC), Bentazon (48% SL) plus Haloxy fop R methyl ester (10.8% EC), Imazethapyr (10% SL), Trifluralin (48% EC), twice hand hoeing and rice straw mulch + hand weeding. To compare the treatments, EWRC rating scale for visual control and weed number and biomass reduction percentage in each treatment compared to control were applied. Also, the percentage increase of economic (seed) yield of groundnut in each treatment in comparison with control were assessed to evaluate the treatments. The result showed that the highest yield increases of peanut occurred in treatments of Bentazon at dosage of 2 L.ha-1 plus Haloxy fop R methyl ester at dosage of 0.75 L.ha-1 as post-emergence application at 2-5 leaf stage of weeds and twice hand hoeing at times of 3 and 6 weeks after planting with 188.6 and 177.7 % increase of yield compared to weedy control, respectively. In these two treatments the weed control of grass weeds (Echinochloa crus-galli L. and Setaria glauca L.) was 81.5 and 100% respectively, broad leaved weed control (Physalis divaricate D. Don and Amaranthus retroflexus L.) was 84.7 and 93.1 % respectively and sedge (Cyperus esculentus L.) control was 70.2 and 90.4 % respectively compared to control. Manuscript profile -
Open Access Article
596 - Effect of Deficit Irrigation Conditions on Potato (Solanum tuberosum L.) Cultivars in Ardabil Climatic
Atousa Shafaroodi Mahnaz Sharifi Abdolghayoum Gholipouri Broomand Salahi Mohammadbagher AalizadehSelection of tolerant cultivars to water stress in areas with reduced rainfall is important. A split plot experiment based on a randomized complete block design with three replications was conducted at the Ardabil Agricultural Research Center during 2015-2016. The exper MoreSelection of tolerant cultivars to water stress in areas with reduced rainfall is important. A split plot experiment based on a randomized complete block design with three replications was conducted at the Ardabil Agricultural Research Center during 2015-2016. The experiment factors consisted of three irrigation regimes: full irrigation (with 100% water requirement) considered as control and 15 and 30 days irrigation intervals assigned to main plots and five potato cultivars consisted of: 397081-1 and 397082-10 Clones and Agria, Caesar and Savalan cultivars assigned to sub plots. In this experiment, clones 397082-10 and 397081-1 and Savalan cultivar had relative superiority in terms of tuber yield, tuber dry matter, water use efficiency and high marketable tuber yield compared to Caesar and Agria. Also, in both years of experiment, the trend of variation of these cultivars for the studied traits were similar under deficit irrigation interval of 15-days. The results were not significantly different against control treatment. As a result, 15-days interval irrigation can be used to save water in the Ardabil area. Manuscript profile -
Open Access Article
597 - Effect of Nitrogen Fertilizer Rates and Its Split Application on Yield and Nitrogen Use Efficiency of Quinoa (Chenopodium quinoa willd.) Cultivars
Mahsa Mansouri Mojtaba Alavi Fazel Abdolali Gilani Shahram Lak Mani MojdamTo evaluate the effect of nitrogen rate and its split application on seed yield and nitrogrn use efficiency (NUE) of quinoa cultivars, experiments were performed during 2018-2019 and 2019-2020 growing seasons as factor split plot based on randomized complete block desig MoreTo evaluate the effect of nitrogen rate and its split application on seed yield and nitrogrn use efficiency (NUE) of quinoa cultivars, experiments were performed during 2018-2019 and 2019-2020 growing seasons as factor split plot based on randomized complete block design with three repetitions at Khuzestan Agricultural and Natural Resources Research and Training Center Station. Experiment treatments were nitrogen fertilizer (0, 100, 200 and 300 kg.ha-1) as the main factor and four levels of split nitrogen fertilizer applications (50% basic + 50% six-leaf, 50% basic + 25% Six-leaf percentage + 25% mid-flowering, 25% basic + 50% six-leaf + 25% mid-flowering and 25% basic + 25% six-leaf + 50% mid-flowering) and three cultivars of quinoa (Gizat, Q26, Titicaca) as sub-plot. The results showed, SPAD, height plant, number of plant branches, number of panicules per area unit and seeds per panicule as influenced by nitrogen content × split × cultivare, interaction. The years× nitrogen rate×split application× cultivar intractions were significant on plant height, 1000 seed weight, seed yield, biological yields, harvest index and NUE. The highest seed yield under all different levels of nitrogen was related to cultivar Q26, in both years by the use of 200 kg of nitrogen, the highest seed yield in the first year belonged to at 25% base application + 50% at six-leaf stage+ 25% at mid-flowering stage and in the second year, to at 50% as base application+ 25% at six-leaf stage+ 25% mid-flowering stage. Highest NUE belonged to Gizal (52.8 g.kg-1) and Q26 (51.8 g.kg-1) cultvars from 200 kg.ha-1 nitrogen by split applications of 25% base + 25% at six-leaf stage+ 50% at mid-flowering stage, while in second year from 100 kg.ha-1 nitrogen. In general, climatic conditions and split application of fertilizer were effective roles in increasing the efficiency of nitrogen consumption. Thus by the use of proper management seed yield can be increased and the risk of its production decreased. Manuscript profile -
Open Access Article
598 - Evaluation of AquaCrop Model in Simulating Yield and Water Use Efficiency of Three Corn Hybrids under Hot-Dry Climatic Conditions
Yaser Esmaeilian Mahmoud RamroudiNowadays, crop simulation models have a key role in crop growth and yield estimation, production planning, production economy and identifying strategies for crops supply. In this research, AquaCrop model was calibrated and evaluated for three corn hybrids; (DC 370, ZP 6 MoreNowadays, crop simulation models have a key role in crop growth and yield estimation, production planning, production economy and identifying strategies for crops supply. In this research, AquaCrop model was calibrated and evaluated for three corn hybrids; (DC 370, ZP 677, and SC 704) under different levels of water supply (non stress, mid stress, and severe stress) and nitrogen rates (0, 120, 180, and 240 kg N/ha). For model validation, normalized root mean square error (nRMSE) and determination of coefficient (R2) were used. Result showed that the model simulated grain yield of corn hybrids with high precision. Simulation precision decreased with increasing drought stress. The lowest nRMSE (7.5%) and highest R2 (0.93) were obtained from ZP 677 hybrid. The model simulated corn biological yield with more deviation percentage than grain yield. However, it´s variation trend due to variation in drought stress level or nitrogen fertilizer predicted well according to field experiment. nRMSE ranged from 6.8 and 10.9, while R2 varied from 0.82 to 0.92. AquaCrop model simulated the variation of water use efficiency of corn hybrids with reasonable accuracy, so that it´s value increased with increasing drought stress and nitrogen fertilizer application, while, model outputs in most situations were lower than measured values. The best model validation result (nRMSE=6.4% and R2= 0.93) obtained from ZP 677 hybrid. According to the results were obtained, AquaCrop model can be applied with high reliability for simulating corn yield under similar climatic regions of this experiment. Manuscript profile -
Open Access Article
599 - The Effect of Cold and Drought Stresses on Yield, Yield Components and Water Use Efficiency of some Corn Hybrids (Zea mays L.)
Mohsen Tarighaleslami Mohammad Kafi Ahmad Nezami Reza zarghamiCold and drought stresses are considered as the most important factors limiting crop production. To evaluate the effect of these tow stresses on yield and yield components of corn hybrids, a field experiment was implemented in split plots based on a randomized complete MoreCold and drought stresses are considered as the most important factors limiting crop production. To evaluate the effect of these tow stresses on yield and yield components of corn hybrids, a field experiment was implemented in split plots based on a randomized complete block design in 3 replicates during 2014 at the Research Greenhouse of Ferdowsi University of Mashhad. In this research, chilling stress in two levels (i.e. non-stress, and cold stress) is considered as the main factor and three levels of drought stress (i.e. irrigation equivalent to 100% of plants water requirement, non-stress as control, irrigation equivalent to 75% of plants water requirement, and irrigation equivalent to 50% of plants water requirement) as sub factor and three hybrid corn (i.e. single-cross 704, single-cross 400, single-cross 260). The results showed that the effects of drought and hybrids on traits under study were significant. Cold and drought stresses interaction of different corn varieties on the traits under study (seed number per ear, 100-seed weight, yield, biological yield and harvest index) was also significant. The highest seed yields of hybrid 704 and hybrid 400 under 100% water requirement were 7887 and 6862 kg.ha-1 respectively. Single-cross 400 variety had the highest water productivity in line with the 704 variety with the highest grain yield and water consumption efficiency, water consumption efficiency for biomass production in water-limited conditions increased. Finally, it shows that cold and drought stress interaction resulted in highest water consumption efficiency in the treatments of non-chilling stress and 100% water requirement. Manuscript profile -
Open Access Article
600 - Evaluation of Photosynthetic Activity, Carbohydrates, Proline and Essential Oils (Ocimum basilicum L.) under the Elicitor of β-Cyclodextrin Nanoparticles
Azadeh Loni Sara Saadatmand Hossien Lari Yazdi Alireza IranbakhshInduction of engineered nanoparticles into medicinal plants causes resistance, enhances quantitative and qualitative performance and effective substances in them. In this study, β-cyclodextrin nanoparticles (β-CDNPS) were synthesized. The nanoparticle profile MoreInduction of engineered nanoparticles into medicinal plants causes resistance, enhances quantitative and qualitative performance and effective substances in them. In this study, β-cyclodextrin nanoparticles (β-CDNPS) were synthesized. The nanoparticle profile was determined by UV-VIS spectrum, transmission electron microscopy (TEM) and dynamic light scattering (DLS). Then different concentrations of β-CDNPs including 0, 10, 50, 100 mg / l were used for foliar spray of basil (Ocimum basilicumc.v. Keshkeni luvelou). The amount of chlorophyll pigments and basil essential oil was significantly different (P≤ 5%) compared to the control.The maximum amount of chlorophyll b was observed in 100ppm treatment. The results showed a significant reduction (P≤5%) of the minimum fluorescence value (Fo) in the treatment of 50 ppm compared to the control and two levels of 10 and 100 ppm of β-CDNPS. The level of 50 ppm significantly increased (P≤ 5%) the maximum fluorescence, variable fluorescence (Fv), photochemical efficiency of the photosystem compared to the control. Foliar spray of β-CDNPS caused changes in basil gas exchange. Soluble sugars and proline of basil leave and root in 50ppm treatment had a significant increase (P≤%5) compared to the control, so that insoluble sugars in leave and root showed the opposite trend. In the presence of β-CDNPS, phenylpropanoids and terpenoids concentration, in the basil showed a significant difference (P≤5%) compared to the control group. Induction of β-CDNPS nanoparticles in the biosynthesis pathway of secondary metabolites results in plant productivity Basil plant under the treatment of nano β-cyclodextrin, with concentration-dependent behavior increased yield per unit area. Therefore, foliar spray at the right concentration can act as an inducer while stimulating, preserving the active ingredients in basil and increase the content of essential oil for food and drug consumption. Manuscript profile -
Open Access Article
601 - Effect of Different Deficit-Irrigation Methods on Yield and Water Use Efficiency of Wheat (Parsi Cultivar)
Nadia Jafari Fayaz Aghayari Farzad PaknejadTo study the effect of different deficit-irrigation methods on yield and water use efficiency of wheat under different water applications a field experiment was carried out in split plot arrangement using randomized complete block design with four replications at the Re MoreTo study the effect of different deficit-irrigation methods on yield and water use efficiency of wheat under different water applications a field experiment was carried out in split plot arrangement using randomized complete block design with four replications at the Research Farm of Islamic Azad University, Karaj branch, Iran in 2014-2015 growing year. Deficit irrigation with three levels were I100: use of 100% wheat water requirement, I75: use of 75% wheat water requirement and I50: use of 50% wheat water requirement, which were assigned to the main plots and irrigation methods with three levels, consisting of M1: conventional furrow irrigation, M2: fixed alternate-furrow irrigation and M3: periodic alternate-furrow irrigation which were assigned to the sub plots. The results showed that by using 100% wheat water requirement grain yield in the fixed and periodic alternate-furrow irrigation methods decreased by 21.8 and 23.7 percents as compared to conventional furrow irrigation method, respectively. The highest water use efficiency for grain yield (1.63 kg.m-3) was obtained when 75% wheat water requirement and fixed and alternate-furrow irrigation methods and the lowest water use efficiency for grain yield (1.24 kg.m-3) was obtained when to 50% wheat water requirement, with conventional furrow irrigation method, was used. Also, the highest water use efficiency for biologic yield (4.38 kg.m-3) was obtained at 50% wheat water requirement, with fixed alternate-furrow irrigation method, that decreased 31.5 percent as compared to I100M1. According to the results of this study, the application of alternate furrow irrigation with 75% crop water requirement can be used to increase water use efficiency for wheat yield in the studied area. Manuscript profile -
Open Access Article
602 - Rice Yield Variations as Affected by Direct Seeding and Herbicide Application
Pooya Aalaee Bazkiyaei Jafar Asghari Parasto Moradi Ebrahim AmiriDue to the dependency of direct seeding of rice on the application of herbicide and possibility of weed resistance to herbicides, the use of mixtures of herbicides is of considerable importance. To evaluate the effectiveness of consecutive applications of some herbicide MoreDue to the dependency of direct seeding of rice on the application of herbicide and possibility of weed resistance to herbicides, the use of mixtures of herbicides is of considerable importance. To evaluate the effectiveness of consecutive applications of some herbicides with lower concentrations, including Thiobencarb, Pretilachlor, Bensulfuronmethyl, Ethoxysulfuron + Anilofos, Butachlor, and Propanil, on weed density, yield and yield components of rice (Oryza sativa L. cv. Hashemi) an experiment based on a randomized complete block design with eight treatments and three replications was conducted at the Research Farm of Faculty of Agricultural Sciences, University of Guilan in 2014. The results showed that plant height, seed yield, dry matter yield, harvest index, number of tillers and number fertile florets per panicle were affected by these treatments. Tandem use of Thiobencarb (9 day before sowing), Bensulfuronmethyl (9 day after sowing) and Propanil (30 day after sowing) affected weed dry matter and weed density by 92 and 98 %, respectively. The highest number of fertile floret per panicle (71 pcs) and tillers number per plant (14 pcs) were observed in plots where Thiobencarb, Bensulfuronmethyl and Propanil were used consecutively. In this treatment, seed yield and biological yield increased by 72 and 73 percent respectively as compared with that of control. Application of Pretilachlor caused phytotoxicity, where by reduced plant height and seed yield. The highest grain yield of rice (3092 kg.ha-1) was produced by consecutive use of Thiobencarb, Bensulfuronmethyl and Propanil. This treatment was more effective in reducing density of weeds and their dry matters than of two times hand weeding. The use of Thiobencarb followed by Bensulfuronmethyl and Propanil was the most effective treatment in this expriement. Manuscript profile -
Open Access Article
603 - Response of Safflower (Carthamus tinctorius L.) Agronomic Characteristics to Time, Rate and Methods of Nitrogen Applications
MOHAMMAD MIRZAKHANITo investigate the response of safflower agronomic characteristics to time, rate and method of nitrogen applications, an experiment was carried out at the research Field of Payaam Nour Arak University in Markazi province during 2011. A factorial arrangement of treatment MoreTo investigate the response of safflower agronomic characteristics to time, rate and method of nitrogen applications, an experiment was carried out at the research Field of Payaam Nour Arak University in Markazi province during 2011. A factorial arrangement of treatment in a randomized complete block design with three replications was used. Time of nitrogen treatment was with three levels (half in planting date + half in rosette stage), (half in rosette stage + half in stem elongation) and (half in stem elongation + half in boll forming stage), urea application was two levels (150 and 300 kg.ha-1) and method of application was with three levels (mixed with soil, used in irrigation water and foliar application). Each plot consisted of 4 rows, 5 m long with 50 cm between rows and 5 cm between plants on the rows. Results indicated that the effect of application time on the characteristics like: height of branch, number of sub-branches, number of seeds per m-2, number of seeds per plant, biological yield of bolls, seed yield of bolls, harvest index of bolls were significant. The effect of nitrogen treatment rates on branch height, number of sub-branches, number of seeds per m-2, number of seeds per plant, biological yield of boll, harvest index of boll, and nitrogen use efficiency were also significant. Mean nitrogen use efficiencies for foliar application was 63.27% and for soil mixed application was 6.86%. Thus, it seems that foliar application of urea not only decreases environmental but also increases nitrogen use efficiency. Manuscript profile -
Open Access Article
604 - Organizational social engineering management in manufacturing organizations with performance management approach (Case study: Industries organizations of Tabriz city)
Nasser Fegh-hi FarahmandOrganizational social engineering management is one of the effective factors in increasing the productivity, because every situation in organizations needs arranging its social engineering and the knowledge of managers from these theories and patterns help them in doing MoreOrganizational social engineering management is one of the effective factors in increasing the productivity, because every situation in organizations needs arranging its social engineering and the knowledge of managers from these theories and patterns help them in doing their duties and in approaching to their goals. Organization success in reaching to effective social engineering management goals focused on organizational citizen and organizational social efficiency is the main problem of this study. The population of this study is managers, specialists and workers of manufacturing organizations of Tabriz. Because of limitations, only five organizations selected for data collection. According to results, settlement of organizational social engineering management were determined for each organization on base of activity type to improve performance of managers, specialists and workers focused on satisfaction and organizational social efficiency of workers. Manuscript profile -
Open Access Article
605 - The Abilities of the Constitution on the way of achieving the Ideal Islamic State
Mojtaba Qanbardust Akbar AshrafiAccording to the doctrines of the Constitutional Law, the constitution is a schema of the political and economical systems, the system of law, and in general all social systems (like family, education, and health care) in a society. Using the library research and a desc MoreAccording to the doctrines of the Constitutional Law, the constitution is a schema of the political and economical systems, the system of law, and in general all social systems (like family, education, and health care) in a society. Using the library research and a descriptive-analytic approach, this study attempt to address the fundamental principle capacity of the Constitution of the Islamic Republic of Iran, that despite the increasing importance of achieving the Ideal Islamic state, it is not completely realized, and its unique abilities have been ignored. This paper studies a range of social problems (such as citizenship freedom limits and the political economy problems) in the constitution that the political sphere in Iran have faced, especially three and forty-four principles. The results show that using the dynamic, generative, and interpretative characteristics of the constitution make the new interpretation and understanding possible; the interpretation and understanding with which the Islamic Republic of Iran can achieve the goals of the Ideal Islamic State, always brought into focused and emphasized by Islamic thinkers and theorists. Manuscript profile -
Open Access Article
606 - Investigating the Implications of Transparency in Government Efficiency in Iran
Mohsen Farsaei masoud motallebi Asghar Arabian mostafa abtahiAbstract:Weakness in government functions means the executive branch in many developing countries, including Iran, is evidence of the growing conditions for the spread of administrative secrecy and corruption in these countries. In most of these countries, the source an MoreAbstract:Weakness in government functions means the executive branch in many developing countries, including Iran, is evidence of the growing conditions for the spread of administrative secrecy and corruption in these countries. In most of these countries, the source and cause of government inefficiency, the existence of variables such as corruption, secrecy and lack of transparency, rent-seeking in obtaining legal privileges and economic licenses, reduced productivity, employment and unprofitable activities of government employees, disregard for the principle Meritocracy and the rule of gangsterism and the appointment of incompetent people in managerial fields. How to increase the efficiency of the government by prioritizing transparency and countering rent-seeking and discrimination (corruption)? And what are the executive strategies for achieving real government efficiency? And does tackling corruption and creating transparency lead to government efficiency and public satisfaction? The results of the studies conducted in this study can increase the constructive, trusting relations in economic and political systems between the government and the people and, as a result, bring the strength of national development programs and the quality and efficiency of the government in the sense of executive power. Brought. This research examines the effectiveness of government through existing information and records and uses standards related to a qualitative research based on interpretive methodology and content analysis. Manuscript profile -
Open Access Article
607 - A study of curriculum development ideology of educational sciences faculty members in Tehran universities in 2010-2011
Mehdi Maleki Mohsen Farmahini FarahaniThis study was administered to investigate the curriculum development ideological type among the educational sciences faculty members in Tehran state universities in 2010-2011. The research method was descriptive survey. The statistical population was as people out of w MoreThis study was administered to investigate the curriculum development ideological type among the educational sciences faculty members in Tehran state universities in 2010-2011. The research method was descriptive survey. The statistical population was as people out of which 81 people was ready to participate in the research. The data were collected through Schiro standard questionnaire including six components (purpose, teaching, learning, knowledge, learner and evaluation), which dealt which four types of curriculum ideology namely, academic researchers, learner-centered, social-reconstruction and social efficiency. Descriptive and inferential statistics were used to analyze the data. The results showed that 5% of academic researcher, 11% of social efficiency. 64% learner-centered, 11% social reconstruction and 4% compound of learner-centered and social efficiency have tendency toward the curriculum development ideology. It can be concluded that most of the academic members have learners centered ideology. Manuscript profile -
Open Access Article
608 - Relation between Self-Efficiency Sense & Emotional Intelligence with Job Burnout among the Personnel of Islamic Azad University of Tabriz
Alireza Aghdami Baher Saeed Najjarpour Ostadi Sholeh LivarjaniThe aim of this research is to study the relation between self-efficiency sense and emotional intelligence with job burnout amount the personnel of Islamic Azad University of Tabriz. The method of research is correlation method and 260 subjects were selected using strat MoreThe aim of this research is to study the relation between self-efficiency sense and emotional intelligence with job burnout amount the personnel of Islamic Azad University of Tabriz. The method of research is correlation method and 260 subjects were selected using stratified random sampling and job burnout tests of Maslach and Jackson and Bar-On self-efficiency sense and emotional intelligence tests were answered by subjects. Testing of hypotheses showed that there is a relation between the self-efficiency sense and emotional intelligence with individual success sense component (P<0.01) and 43.6% of changes in this component result from the two above-mentioned variables. Regression coefficient in anticipating variables were 0.451 and 0.274 for self-efficiency sense and emotional intelligence, respectively (P<0.01). It was also determined that there is no relation between self-efficiency sense and emotional intelligence with two other components of job burnout that is emotional fatigue and personality metamorphosis. One of the findings of this research showed that there is a correlation between self-efficiency sense and emotional intelligence with individual success sense component, which were 0.63 and 0.569 (P<0.01). But there was no significant relation between self-efficiency sense and emotional intelligence with two other components of job burnout. Manuscript profile -
Open Access Article
609 - Relation of job satisfaction to self-efficiency of meshkinshahr guidance school teachers. (year 88 – 89)
Adel Zahed Yousef Namvar Shahram NobakhtThe aim of this research is to determine the relation of job satisfaction and self-efficiency of meshkinshahr guidance school teachers. Method of this research is correlational one. Statistical universe consist of who 1739 teachers of meshkinshahr guidance schools, 250 MoreThe aim of this research is to determine the relation of job satisfaction and self-efficiency of meshkinshahr guidance school teachers. Method of this research is correlational one. Statistical universe consist of who 1739 teachers of meshkinshahr guidance schools, 250 of them selected as a statistical sample, by classification random sampling. Two job satisfaction question arie smith, Kendal and hyaline, and self-efficiency test, dembo and chipson has been used to collect require data. The permissibility of these questionaries verified by specialists and the stability of job satisfaction and self-efficiency questionaries obtained, by using krounbakh alpha %88 and %62, respectively. For data analyzed using significantiblity fests of pierson correlation coefficient, multi regression, and test, to compare two independent group. Results show that there is significant correlation between job satisfaction and teacher's self-efficiency (r=0.29,p<0.01). Items of job nature (r=0.33), guardianship (r=0.34), salary and wage (r=0.17), among the items of job satisfaction, correlated significantly to self-efficiency. Results obtained by multi regression show that job satisfaction elucidate, so, significantly about 14 percent (%14) of variance changes in self- efficiency. (Rdj. R2=0.143). Items of job nature, guardianship and salary, from items of job satisfaction, are significant anticipator for self-efficiency, but items of interest. Promotions and communication with other colleague aren't significant explanatory. Also, based on findings of this research, there is not significant difference between man teachers and woman teachers in respect of job satisfaction and self-efficiency. Manuscript profile -
Open Access Article
610 - Neighborhood-Oriented Cultural Management and Urban Managers’ Cultural Performance Efficiency in Tehran
Sahar shetaban esmaeil kavousy Abbasali GhaiyoomiThe aim of the current applied, descriptive and correlational study was to investigate neighborhood-oriented cultural management and the role it plays in urban managers’ cultural performance efficiency in the metropolitan city of Tehran. The research population co MoreThe aim of the current applied, descriptive and correlational study was to investigate neighborhood-oriented cultural management and the role it plays in urban managers’ cultural performance efficiency in the metropolitan city of Tehran. The research population comprised 14000000 citizens living in Tehran out of whom a sample of 384 was randomly selected, based on Morgan Table, to participate in the study. The research data were collected using a researcher-made five-point level Likert scale questionnaire comprising 4 factors and 28 items tapping the participants’ responses were. Therefore, 384 questionnaires were distributed among members of the target population. Having distributed and collected the questionnaires, we analyzed descriptively and inferentially. Descriptively, features like absolute and relative frequency, mean, standard deviation and variance of background and main variables were estimated. Inferentially, correlational tests, multiple regression and F-Test used indicated that neighborhood-oriented Cultural management had a significant effect on urban managers’ cultural performance efficiency in Tehran Manuscript profile -
Open Access Article
611 - Higher Education Productivity Measurement
Davood Hosseinpour Fatemeh Sohrabi Parastoo SalavatiThe purpose of this applied descriptive survey was to measure the productivity of higher education. The research population consisted of first level different university faculty members and assistants from whom a cluster sample of 34 participants from Allameh Tabataba'I MoreThe purpose of this applied descriptive survey was to measure the productivity of higher education. The research population consisted of first level different university faculty members and assistants from whom a cluster sample of 34 participants from Allameh Tabataba'I University, Tehran University and Sharif Industrial universities were randomly selected to partake in the study. The research data were collected employing a researcher-made productivity measurement questionnaire comprising four factors tapping quality, value added, efficiency and effectiveness. Smart-PLS software was employed to confirm the validity and reliability of the questionnaire and the structural and general fitting of the proposed model. The research data were analyzed via SPSS software and dependent samples t-test to answer the research questions. The findings demonstrated that overall productivity of higher education was below expectations and that higher education productivity facets including quality, value added, efficiency and effectiveness were far below favoured averages. The findings accentuate consistent measurement, causal scrutiny and planning as prerequisites for productivity enhancement of higher education. Manuscript profile -
Open Access Article
612 - Project Efficiency Estimation Based on Dynamic Simulation Model of Earned Value Management
Mojtaba Bakhshandeh Yahya Zare MehrjerdiEarned Value Management (EVM) is known as an efficient and well-known tool for project management. Examining various sources, it was observed that although the EVM analytical model has introduced good indicators for measuring project progress, it is weak in estimating t MoreEarned Value Management (EVM) is known as an efficient and well-known tool for project management. Examining various sources, it was observed that although the EVM analytical model has introduced good indicators for measuring project progress, it is weak in estimating the final cost of the project and does not predict the process of cost change and project efficiency. On the other hand, nothing has been done so far to use system dynamics in EVM.Therefore, considering the capacity of system dynamics in modeling complex systems and setting parameters dynamically based on model variables, the main problem of modeling research is the value model obtained by simulating system dynamics. The dynamic hypothesis of the research was that there are dynamics between the main indicators of EVM. Identifying these dynamics and the way they affect each other can lead to estimating the process of changing costs and project efficiency by the end of the project.Through presenting the causal loop diagram and the stack flow diagram of the proposed model, the variables were determined and after simulation, the model was validated by performing various tests and different policy scenarios were presented.The comparison of the results of the research simulation model with the results of the EVM analytical model revealed that there is a slight difference between the results and the efficiency. The main contribution of the research is the creation of a simulation model based on system dynamics as the core of the simulation to estimate the trend and the final amount of efficiency and cost of the project, which can be part of a more comprehensive simulation model.This can be used to determine the impact of various project management functions on improving project efficiency, which is the main suggestion for further research. Manuscript profile -
Open Access Article
613 - Development of open and non-homogenous network data envelopment analysis model
Vahid Ettehadi Hasan Hoseininasab Mohammad Bagher Fakhrzad Hasan KhademizareIn this paper, data envelopment analysis (DEA) was discussed for non-homogenous mixed network structure where the outputs of each stage can enter the next stage in the same or another layer as inputs or come out from the system as final products. In this model, in addit MoreIn this paper, data envelopment analysis (DEA) was discussed for non-homogenous mixed network structure where the outputs of each stage can enter the next stage in the same or another layer as inputs or come out from the system as final products. In this model, in addition to intermediate inputs, each stage can also have independent inputs. For this purpose, a mathematical model has been developed in which the independent inputs and final outputs for the components of the decision making units (DMUs) are examined. To show the efficiency of the model, real data for 20 DMUs were used and the results were compared with those of traditional models. The results obtained from the proposed method eliminate the shortcomings of traditional methods for proper detection of units that are on the efficient border (with an efficiency of one). The developed method can provide the managers and decision makers with a more accurate understanding of the performance of components of DMUs. Manuscript profile -
Open Access Article
614 - Proposing a Model of Human Resource Planning in the Public Sector with a Focus on the Efficiency of Public Organizations
Ali Davodi Karamollah ِ Daneshfard Abdolkhalegh GholamiThe current study was an attempt to present a model of human resource planning in the public sector with a focus on the efficiency and organizational productivity. The research population included the experts and managers of the Ministry of Culture and Islamic Guidance MoreThe current study was an attempt to present a model of human resource planning in the public sector with a focus on the efficiency and organizational productivity. The research population included the experts and managers of the Ministry of Culture and Islamic Guidance in Fars province. In this research, all 100 senior managers in the population were considered as the sample of the study since the whole population had a limited number of members, and thus, total population sampling was employed. Due to the lack of information on human resource management as well as the nature of management research, the target population had to be recruited from among the managers and experts of the Ministry of Culture and Islamic Guidance of Fars province, which justifies the statistical number of the population in this study. In order to identify the factors influencing human resource planning, library and Delphi techniques were utilized. The18 identified factors were evaluated considering 59 items. In the exploratory factor analysis, these 18 factors were classified into three groups of occupational factors, organizational factors, and individual factors. Moreover, conducting confirmatory factor analysis, the researchers examined the items, and the sub- and main factors. Manuscript profile -
Open Access Article
615 - Presenting a Model for Using the Internet of Things in Iranian Knowledge-Based Companies to Promote Productivity
khatereh Esmaeeli ranjbar Nadjla Hariri Mojdeh Salajgh Fahimeh BabalhavaejiThe present study aimed at presenting a model for the use of the Internet of Things in Iranian knowledge-based companies. In terms of exploration and data collection, this applied research is a qualitative and quantitative one. The main approach for achieving the model MoreThe present study aimed at presenting a model for the use of the Internet of Things in Iranian knowledge-based companies. In terms of exploration and data collection, this applied research is a qualitative and quantitative one. The main approach for achieving the model of using the Internet of Things is the grounded theory methodology which is based on a paradigmatic model. In the qualitative part, 25 executives and practitioners of knowledge-based companies who were somehow specialized and experienced in the Internet of Things were interviewed. They were selected through snowball method. For the quantitative part, all managers and technology experts working in knowledge-based companies were considered as the research population. Cochran's formula for finite communities was used to select the sample. After careful analysis of the interviews, 59 extracted concepts were identified in 5 main categories and 13 subcategories. It was found that management requirements, customer requirements, and resistance economics give rise to the Internet of Things in the knowledge-based companies. The characteristics of the company, the human resources and the managers can provide a suitable ground for using the Internet of Things. Moreover, it was revealed that and the conditions in the country, international pressure and international cooperation can be among the intermediary factors influencing the use of the Internet of Things. Raw materials and infrastructure can also be effective for using the Internet of Things. Finally, using Internet of Things, customer-related factors, international collaborations, and expected results can be anticipated in knowledge-based companies. Manuscript profile -
Open Access Article
616 - Studying the Effect of Individual Ambidexterity on the Performance of Health Care Workers: a Case Study of Shahrekord Medical Sciences University
Somaye lalegani Alireza Koushkie Mirali SeyyadnaghavyIn this research, the effect of individual ambidexterity on high level performance of the medical staff of Sahrekord University of Medical Sciences was investigated. High level performance of employees includes three main dimensions of team performance, efficiency and e MoreIn this research, the effect of individual ambidexterity on high level performance of the medical staff of Sahrekord University of Medical Sciences was investigated. High level performance of employees includes three main dimensions of team performance, efficiency and effectiveness of the department. The hidden dimensions of ambidexterity include exploration and exploitation. Past studies in the field of ambidexterity have mostly been conducted at organizational levels, but in the present study, there was an attempt to study the impact of ambidexterity at the level of individuals. In this research, we generally investigated the relationship between individual ambidexterity and employee performance, seeking to answer whether individual ambidexterity influences the performance, efficiency and effectiveness of organizational units. In order to answer the research questions, 260 questionnaires were sent to the medical staff of Shahrekord University of Medical Sciences. The data were gathered and analyzed using statistical methods and structural equation modeling based on the least squares method. It was found that individual ambidexterity had a positive influence on employee performance and that there was a significant relationship between individual ambidexterity and the efficiency and effectiveness of the department Manuscript profile -
Open Access Article
617 - The Effect of the Coronavirus Disease Pandemic on Efficiency with the Mediating Role of Marketing Capabilities and Strategic Orientation: A Case Study of Small and Medium-Sized Businesses of Tehran Province
Dariush Tahmasebi Hashem AghazadeToday, with the rapid spread of the Corona pandemic, problems have arisen for businesses, especially small and medium-sized businesses. On the other hand, marketing capabilities are considered essential in determining the heterogeneous evaluation of product quality for MoreToday, with the rapid spread of the Corona pandemic, problems have arisen for businesses, especially small and medium-sized businesses. On the other hand, marketing capabilities are considered essential in determining the heterogeneous evaluation of product quality for customers, which helps the strategic direction of small and medium-sized businesses in the critical conditions of the Corona pandemic. Hence, the purpose of the current research was to explain the effect of the Corona pandemic on efficiency considering the mediating role of marketing capabilities and strategic orientation. The direction of the research was applied and descriptive in terms of purpose. The statistical population of the research included 2200 managers and senior employees of small and medium-sized businesses in Tehran province, from among whom, a sample of 335 people was recruited using a stratified sampling procedure. A survey method was used for the data collection and PLS method was used for the data analysis. Based on the results, the effect of the Corona disease pandemic on efficiency, marketing capabilities and strategic orientation and the role of strategic orientation on efficiency were confirmed. Moreover, the indirect role of mediating variables of marketing capabilities and strategic orientation in the relationship between the Corona disease pandemic and efficiency was confirmed. However, the effect of marketing capabilities on performance was rejected. This research advises senior managers of small and medium-sized businesses to pay extra attention to strategic orientation and marketing capabilities in order to reduce threats and increase the possibility of survival and take advantage of future opportunities in the post-corona era. Manuscript profile -
Open Access Article
618 - Proposing a Model for the Efficiency of Human Resources Investment in Iranian Capital Market
Rasoul masroori Asgar Pakmaram Ahmad Mohammadi Rahimi GholamrezaRegarding the strategic role and importance of human resources in organizational valuation in modern business space, investment is highly important. Hence, the present study aimed to investigate the effective factors affecting the efficiency of human resources investmen MoreRegarding the strategic role and importance of human resources in organizational valuation in modern business space, investment is highly important. Hence, the present study aimed to investigate the effective factors affecting the efficiency of human resources investment in Iranian capital market. This survey study had a descriptive design. The statistical population consisted of all firms listed in Tehran Stock Exchange. The statistical sample included 155 companies recruited through convinience sampling method. A researcher-made questionnaire based on Likert scale was used for collecting the data. Kolmogorov-Smirnov test was used to test the normality of the data and structural equation modeling was employed to test the hypotheses. The results showed that the quality of financial reporting, the quality of profit and financial stability, human capital disclosure, social responsibility reporting, motivational commitment of employees, conservatism in financial reporting, organizational atmosphere and improvement of business environment have a positive and significant effect on the efficiency of investment in human resources. Manuscript profile -
Open Access Article
619 - Application of Data Envelopment Analysis in Measuring the Relative Efficiency of Local Telephone Exchanges: A Case Study of Telecommunication Region of East Azerbaijan
Ebrahim Keivan Soleyman IranzadehAfter the privatization and acceptance of Iran Telecommunication Company in the stock exchange, it is inevitable for the shareholders to know the efficiency status of telecommunication exchanges. The present study seeks to answer the fundamental question of how ineffici MoreAfter the privatization and acceptance of Iran Telecommunication Company in the stock exchange, it is inevitable for the shareholders to know the efficiency status of telecommunication exchanges. The present study seeks to answer the fundamental question of how inefficient telephone exchanges can be brought to the brink of efficiency. To this end, by collecting the opinions of experts through a pairwise comparison questionnaire and analyzing the data using the ANP method, the effective variables in the efficiency of the exchanges have been identified. The raw data have been prepared from the statistics and evaluation scores obtained from the "Planning" and "Inspection and Evaluation" departments and the financial statements up to 1396, which have been legally audited. Then, using data envelopment analysis (DEA) method and in the conditions of "returns to fixed and variable scale", the efficiency score of the calculation exchanges, ranking and finally the strategies to improve the efficiency of inefficient exchanges have been extracted. The difference in the number of inefficient exchanges in the two scales indicates the proof of the theory of "scale inefficiency", the non-functioning of the exchanges at the optimal scale and the waste of resources by the exchanges. The weak position of the counties in the ranking table necessitates the selection of "heads of telecommunications of the counties" according to individual and professional competencies. Also, it was found that the lack of "competitive-motivational environment", "decision-making power" and "risk-taking" and the existence of "various organizational and legal restrictions" are important factors in the inefficiency of the exchanges. Manuscript profile -
Open Access Article
620 - Analyzing the Effectiveness of Marketing Information Systems on Strategic Planning Efficiency: Case study of banks
Mousa Sadeghi Mahammad Sadegh Sobhani FarajAllah RahnavardIn the information era, information technology development has made it possible for managers to study environment with more confidence. But the role of information systems in strategic planning process and compiling and fulfilling strategies is not clear. This essay ana MoreIn the information era, information technology development has made it possible for managers to study environment with more confidence. But the role of information systems in strategic planning process and compiling and fulfilling strategies is not clear. This essay analyses the effect of marketing information systems on the efficiency of marketing strategic planning process and its elements in Iranian banks. In the conceptual model of this research, goal setting, situational analysis, regulating goals and strategies and resource allocation are considered as the basic elements of marketing strategic planning process, and time, contents and form of information are the outputs of marketing information systems. The case study of this research for presenting quantitative results includes the country’s banks (except Central Bank). The results obtained from the views of senior managers or the experts of the banks’ R&D departments, which were collected through the use of the questionnaire designed merely for this purpose indicate that the outputs of marketing information systems have great effects on the efficiency of marketing strategies planning. The results of linear trend analyses show that the variables of information contents explain the changes of the elements of strategic planning process the most, and the form of information explain it the least. Among the elements of strategic planning process, situational analysis and resource allocation are affected by the outputs of marketing information systems the most while its effect on goal setting, regulating goals and compiling strategies is the least. Manuscript profile -
Open Access Article
621 - Analyzing Multiple Relationships of Effective Leadership, Strategic Planning by with Human Resource Efficiency of Higher Education Institutions in West Azerbaijan Province
naser sedgy boukany Mir Mohammad Abbaszadeh hasen ghalavand Mohammad HassaniThis study aimed to test the conceptual model for predicting the for human resource productivity of higher education based on the variables of effective leadership and strategic planning. The research community samples were universities of western Azerbaijan facul MoreThis study aimed to test the conceptual model for predicting the for human resource productivity of higher education based on the variables of effective leadership and strategic planning. The research community samples were universities of western Azerbaijan faculty members consisted of 310 people randomly stratified (112 from state universities, 114 from Islamic Azad Medical, 84 from medical sciences univrsities). The research method was descriptive and multivariate with three effective leadership tools Saatchi and colleagues, strategic planning based on University of New Jersey model and Shah & Schaniz models (2008), and Human Resources Productivity Questionnaire based on the Acheive Model by Hers And Goldsmith that the content validity (construction) and content reliability (Cronbach's alpha) were reported suitable. Analysis was done using AMOS software and structural equation model. Results have shown meaningful positive relationship between effective leadership and strategic planning with the scientific Human Resources Productivity.Additionally, effective leadership has the most direct positive impact on strategic planning and improving the Human Resources Productivity of scientific research and strategic planning is less effective on improving the Productivity. Manuscript profile -
Open Access Article
622 - Using Condition Monitoring (CM) for Access to Efficiency Improvement in Industry Case Study: Mazandaran Wood and Paper Industries
Mohammad Mehdi Movahhedi Valiyollah Rezaee NosratiNowadays, managers try to use scientific methods to increase the quality of goods, and simultaneously reduce their final prices as well. Condition Monitoring (CM) is one of the methods which has been popular among industrial managers in recent years and of course it has MoreNowadays, managers try to use scientific methods to increase the quality of goods, and simultaneously reduce their final prices as well. Condition Monitoring (CM) is one of the methods which has been popular among industrial managers in recent years and of course it has provided many benefits for organizations. Analyzing the vibrations is one of the condition monitoring methods, and by using it we can avoid rework, and reduce the company's costs considerably. To show this effect for efficiency improvement of production process, Mazandaran Wood and Paper Industries has been selected as a case study, and the vibration analysis, one method of the conditions monitoring has been applied. In this research, we have shown how to prevent stoppages and damages of the equipment by in-time awareness and by imposing preventive repairs. Secondly, considerable conservation in consumption of parts and manpower will be achieved for repairing and maintenance of equipment in order to guide the organization toward efficiency improvement. Manuscript profile -
Open Access Article
623 - Investigating and Specifying the Factors Affecting the Efficiency of Human Resources and Ranking the Factors among the Staff Members in Izeh Branch of Islamic Azad University
Mahmood Danyali Deh Hoz Sayed Mohsen Allameh Hossein MansooriThe present research aims to specify and rank the factors effective on the efficiency of the staff in Izeh Islamic Azad University. The statistical population includes all the staff of Izeh Azad University, from among whom 160 people were chosen randomly. This research MoreThe present research aims to specify and rank the factors effective on the efficiency of the staff in Izeh Islamic Azad University. The statistical population includes all the staff of Izeh Azad University, from among whom 160 people were chosen randomly. This research is a descriptive survey and data gathering was done through both library and field methods. A researcher-made questionnaire was used for data collecting process. In order to analyze the data, we used T-student test and variance analysis (ANOVA). For ranking the factors effective on the efficiency of the staff, we used MADM techniques. The findings show that structural and management factors, professional factors, physical and mental factors in the work place, individual factors, and factors which provide intimacy and co-operations are the factors effective on the efficiency of human resource in this university. Furthermore, by using MADM techniques such as AHP and TOPSIS, we have drawn the conclusion that the factors providing intimacy and co-operation are the most effective factors on the efficiency of the staff in Izeh Islamic Azad University. Other effective factors are ranked as follows: structural and management factors, professional factors, individual factors and environmental and physical factors. Manuscript profile -
Open Access Article
624 - Evaluating Relative Efficiency of Major Cargo Ports in the Middle East: The Integrated DEA-AP Approach
Azita Hajizadeh Seyed Nasser Saeidi Amer Kaabi Homayoun Yousefi Mostafa ZaredoostThe aim of this study was to evaluate the relative efficiency of major cargo ports in Middle East over the three-year period of 2011-2013. The research data were collected from scientific resources and input and output data from statistical yearbook of the Iranian ports MoreThe aim of this study was to evaluate the relative efficiency of major cargo ports in Middle East over the three-year period of 2011-2013. The research data were collected from scientific resources and input and output data from statistical yearbook of the Iranian ports, maritime organization and formal website of each foreignport. Initially, the relative efficiency of ports was evaluated via two basic model of DEA-technique namely CCR-O and BCC-O and the ports were ranked accordingly using the 100% efficiency Anderson-peterson method. Based on the results of output- oriented CCR modelthatrepresents overall technical efficiency, Khorfakkan Port showed the highest and Bandar ImamKhomeini the lowest coefficient of efficiency during the given period. Based on the results of output- oriented BCC modelthatrepresents pure technical efficiency, Bushehr, Jebel Ali, KhorfakkanandAlexandria were found to have the highestandBandar ImamKhomeini the lowest coefficient of efficiency. Apart from Khorfakkan and Alexandriathat were underconstantreturns to scale, other ports were under variablereturns to scale. The scrutinized ports revealed an average of 54.3%, in technical efficiency and an average of 73% in pure technical efficiency during 2011-2013. Manuscript profile -
Open Access Article
625 - Measuring the Efficiency through Fuzzy Model in Data Envelopment Analysis
Maryam Balaseyyed Gassir Esmail AlizadehData envelopment analysis (DEA) is used for measuring the relative efficiency of a group of decision-making units with various inputs in order to create various outputs. In order to discuss the inaccurate data, the fuzzy concept is introduced. In this research, we intro MoreData envelopment analysis (DEA) is used for measuring the relative efficiency of a group of decision-making units with various inputs in order to create various outputs. In order to discuss the inaccurate data, the fuzzy concept is introduced. In this research, we introduce a model for measuring the rate of efficiency with fuzzy main functions, using trapezoid fuzzy numbers. The main goal is to convert the fuzzy DEA model into absolute and accurate DEA models by applying. A set of parametric problems is formulated to describe a set of absolute DEA models. Manuscript profile -
Open Access Article
626 - A Study of the Role of Productivity Managament and Foreign Direct Investment in Non-Oil Export in Iran
Mohammad Reza Nahidi Mehrnaz Hosein pourToday, the level of a country's development is directly related to itsinternational trade volume. Using the export-oriented development strategy,countries can achieve growth in national production and therefore increaseemployment.The necessity to develop non-oil exports MoreToday, the level of a country's development is directly related to itsinternational trade volume. Using the export-oriented development strategy,countries can achieve growth in national production and therefore increaseemployment.The necessity to develop non-oil exports in Iran's economy toachieve these goals and to solve the problems due to economy's dependenceon oil revenues, particularly in the current period is important. Developmentof investment and the growth in non-oil exports are important factors inrealizing national production goals. Accordingly, the role of science in theeconomy, due to creating expertise and improving the productivity ofproduction factors, has long had been the focus of attention. Therefore, thepresent study, by using time series data and Vector Auto Correction (VAR)Model, has tried to investigate the effects of the efficiency of productionfactors, information and communication technology, and foreign directinvestment on non-oil export growth during 1971-2008. The results confirmthe impact of the mentioned factors on non-oil exports and clarifies the waysto consider those factors with regard to trade policies. Manuscript profile -
Open Access Article
627 - An Evaluation of Informational Efficiency of Information and Communication Technology Corporates in Tehran Stock Market: inconsistency with the global trend
Ali Asghar Anvari Rostamy Seyed sepehr Gazi nore Amir KhorasaniThe impact of Information and communication technology to increase financial transactions in different fields shows the Positive developments of this industry in Iran. But could the ICT industry also be efficient in the economic capital of the country? Does the industry MoreThe impact of Information and communication technology to increase financial transactions in different fields shows the Positive developments of this industry in Iran. But could the ICT industry also be efficient in the economic capital of the country? Does the industry that appeared with the nature of contributing to convey and analyze the information has informational efficiency itself? In this study, the ICT industry in the Tehran Stock Exchange was surveyed to check its informational efficiency. The data and documents related to the profitability of companies in this industry for 6 years were studied quantitatively. A total of eight companies with the nature of ICT were selected. To understand the informational efficiency, runs test have been used with two approaches: runs with change relative to the average. The results showed that the ICT industry in Tehran stock exchange has not even a weak level of informational efficiency. The results are completely inconsistent with other countries and show that Iran's ICT condition needs a fundamental reflection. Manuscript profile -
Open Access Article
628 - Investigation of Bank Management Performance Using DEA Technique (Case Study of Different Branches of Tehran Banks)
Mohammad Rahim Ramazanian Keikhosro Yakideh Lobat Akhavan DeilamiBanks are considered as vital circulatory system of finance and financial institutions that collect assets from various sources and allocate them to sectors that need market liquidity. Despite existing limitations, the present enquiry aimed to examine the efficiency of MoreBanks are considered as vital circulatory system of finance and financial institutions that collect assets from various sources and allocate them to sectors that need market liquidity. Despite existing limitations, the present enquiry aimed to examine the efficiency of bank management through the use of Data Envelopment Analysis Model. Typical Models of Data Envelopment Analysis employed in evaluation of organizational performance are based on the black box events, that is, the input into units under scrutiny converted into output regardless of the intermediate stages. However, providing bank services is a complex process comprising different interconnected stages and the interwoven stages involved necessitated the use of Network Data Envelopment Analysis, in the present study, to design a Bank Performance Measurement Model. Thus, the aim of this scrutiny was to identify managerial weaknesses by calculating the management efficiency using the Network Model and to offer viable solutions. To serve the purpose, the banking data accumulated in 19 private bank branches in Tehran during the year 2014 were surveyed to estimate both the overall efficiency and the efficiency of each bank segment. The findings indicated significantly lower levels of efficiency in Network Collective Models compared to Simple Collective Models. Also, the NSBM model rendered a more precise measure of efficiency in comparison to the SBM model which can enable managers to identify and rectify inefficiencies in each sector. Manuscript profile -
Open Access Article
629 - The Relationship Between the Degree of Participation of the Teachers in the Manegement of the Schools and Their Efficiency in Marand
Davood Hoseyni nasab Sohrab Kheyre darayeThe general purpose of this paper is to determine the relationship between the degree of participation of the teachers in the school management and the high school teachers’ efficiency in Marand. The Specific purposes of this paper are: to find out the teachers&rs MoreThe general purpose of this paper is to determine the relationship between the degree of participation of the teachers in the school management and the high school teachers’ efficiency in Marand. The Specific purposes of this paper are: to find out the teachers’ participation rate in school management according to their perspective, determining the managers (man and woman), participatory management style, and their efficiency. The research method is descriptive. The statistical population were Marand high school teachers and managers and the sampling method was simple random sampling.The sample number consisted of 76 managers and 304 teachers. Two separate questionnaires were used for teachers and managers. Specialists’ opinions have been used to determine the validity and Cronbach method has been used to determine the reliability rate of the questionnaires. The teachers’ questionnaire validity rate was calculated 80 percent and the managers’ questionnaire validity rate was 86 percent. The results were analyzed by SPSS statistical software version 9 and Pearson correlation test, T–test and ANOVA (unilateral variance analysis). In this paper, five questions were designed,and the statistical test results were: There is not a meaningful relationship between male teachers’ participation rate and their efficiency. There is a meaningful relationship between female teachers’ participation rate and their efficiency. Teachers participation rate regarding the teacher’s gender is not different. Teachers’ participation rate regarding the manager’s gender is not different. Teachers’ participation rate regarding their education is not different. According to this paper results, there is a direct relationship between the teachers’ participation rate in school and their efficiency. So it is suggested that school managers involve the teachers more in their school management because they will be a great help in solving many school problems. Finally, practical suggestions and guidelines are presented. Manuscript profile -
Open Access Article
630 - Investigating the Relationship between Multiple Intelligence and General Self-efficiency of the Personnel in Producing, Commercial, and Industrial Units
Serus Fakhimi Azar Mohammad reza NoroziThe main purpose of the present research is to investigate the relationship between multiple intelligent and general self-efficiency of the personnel in the producing, commercial, and industrial units of East Azarbaijan Province. For this purpose, multiple intelligence MoreThe main purpose of the present research is to investigate the relationship between multiple intelligent and general self-efficiency of the personnel in the producing, commercial, and industrial units of East Azarbaijan Province. For this purpose, multiple intelligence based on Howard Gardner's theory including eight dimensions and Mathias and Ralph's theory of self- efficiency were chosen as the theoretical framework, and standard questionnaires were used for both theories. In this regard, one main hypothesis and eight sub-hypotheses were stated. The statistical population includes the personnel of the producing, commercial, and industrial units of East Azarbayjan Province, from among whom 100 people were selected as research sample. Also, for the analysis of the data collected from the standard questionnaires, descriptive and inferential statistics were used. In other words, descriptive statistical method was used for classifying, summarizing, and interpreting the statistical data, and inferential statistics was employed to test the hypotheses. The obtained results indicate the relationship between multiple intelligence and general self-efficiency of the personnel in the mentioned producing, commercial, and industrial units. Manuscript profile -
Open Access Article
631 - Evaluation of bank branches Performance by combining two systems "balanced scorecard" and "fuzzy DEA" (Case Study: Tabriz selected branches of Bank Sepah)
Alireza Bafande Samera RafieIn the current era, the amazing changes in the management knowledge necessitate the existence of measurement systems so much so that the absence of a measurement system in the different dimensions of an organization such measurement of the use facilities and resources, MoreIn the current era, the amazing changes in the management knowledge necessitate the existence of measurement systems so much so that the absence of a measurement system in the different dimensions of an organization such measurement of the use facilities and resources, personnel, goals and strategies is considered one of the signs of organization illness. There are different techniques for performance measurement, each of which has strong and weak points. In the present paper, a model for measuring the performance of the bank branches by combining “balance score card” with “fuzzy data envelopment analysis”. The statistical population includes all the branches of Sepah Bank of Tabriz totaling 42. The efficiency measurement indices have been specified through the use of balanced scorecard and with regard to the research literature. For data collection, a researcher – devised questionnaire was used after its validity and reliability had been confirmed. Data envelopment analysis was applied for data analysis. The results show that 10 branches out of the 42 around Tabriz are specified as strongly efficient, 27 as efficient, and the remaining 5 branches as inefficient. Manuscript profile -
Open Access Article
632 - The Relationship between Managerial talent, Investment Efficiency and Stock Price Crash Risk
Bita Moazen Yunes Bad Avar NahandiThe aim of the present study was to investigate the relationship between managerial talent, investment efficiency, and also, the management ability interaction and financial reporting quality with stock price crash risk. To this end, the data from 124 companies ac MoreThe aim of the present study was to investigate the relationship between managerial talent, investment efficiency, and also, the management ability interaction and financial reporting quality with stock price crash risk. To this end, the data from 124 companies accepted on the Stock Exchange in Tehran were used for a span of five years (2009-2014). To measure managarial talnet, Demirchian & et al. (2012) model, which was based on accounting variables; Chen & et al. (2011) model, to measure investment efficiency; Kothari & et al. (2005) model, to measure financial reporting quality; Chen & et al. (2001) model, to measure stock price crash risk were used. To test the hypotheses, the multiple regression statistics was used. The results confirmed the theory of rent extraction and showed that firms with more talented managers making inefficient investment decisions. these firms, take opportunistic approach and manupulate financial reports in order to hid bad news to increase stock price crash risk. Manuscript profile -
Open Access Article
633 - Evaluation of Functional Efficiency of Space in Architecture of Two-Sided Houses Built in the First Pahlavi of Shiraz(Case Study: Razmjoo and Mostaghni Houses)
Fatemeh Kakaei Tahereh Nasr Hadi Keshmiri Hamed MoztarzadehSince the first Pahlavi architecture is a new chapter in the creation of space and so far little research has been done on the houses of Shiraz that qualify and valuable criteria to protect and model their architecture; Based on this, this research aims to evaluate func MoreSince the first Pahlavi architecture is a new chapter in the creation of space and so far little research has been done on the houses of Shiraz that qualify and valuable criteria to protect and model their architecture; Based on this, this research aims to evaluate functional efficiency of space in architecture of two-sided houses of first Pahlavi construction in Shiraz, so that by improving the quality of housing architecture, it can achieve sustainable development of urban housing. Therefore, in terms of the objective, it is an applied research, and in terms of the data collection method, it is a non-experimental descriptive research of survey and case type. In this way, first, by using library sources and documents, the concept of functional efficiency of space in the residential architecture of the first Pahlavi of Shiraz was investigated and the factors affecting it were extracted; Then, by drawing explanatory diagrams, the spatial relationships in the selected houses were analyzed using the way of life and space syntax, and the spatial organization of the houses was examined from the point of view of movement, arena and functional systems. Following the ranking of factors affecting the performance efficiency of space in the first Pahlavi residential architecture of Shiraz, based on the process of analytical analysis, it was discussed. Then the performance efficiency of space was evaluated in the architecture of the selected houses. The obtained results show that the components of "accessibility" and "flexibility" in the movement system of space, the component of "penetrability" in the system of staging space, and the components of "interconnection" and "integration" in the functional system of space as indicators, positive indicators with an increasing effect, as well as the "average relative depth" component in the space staging system and the "relative order" and "separation" components in the functional space system as negative indicators with a decreasing effect on the level of functional efficiency are considered as space. The compatibility rate values are less than 0.100, hence the criteria are compatible in terms of mathematical logic and the calculations are correct. Therefore, the criteria of revitalizing the local identity and culture, form and direction of the optimal location of the mass-space, ecological orientation, compliance with the formal-spatial hierarchies, introversion, establishing security and safety, using light and natural ventilation, connecting with nature and natural elements, physical and visual accessibility, continuity of the level of human activities, fit between space, form and activity, existence of open (public), closed (private) and semi-open-closed (semi-public-private) spaces, respecting adaptability and flexibility, creating diversity and attractiveness, paying attention to beauty and avoiding futility are the factors affecting functional efficiency of space in residential architecture of first Pahlavi of Shiraz, which are ranked according to their importance, as well as the options (yard + two-sides-construction of two opposite fronts) and (yard + two-sides of the L-shaped structure) respectively have the highest appearance of the mentioned factors and, accordingly, the highest level of functional efficiency. It is considered that by strengthening the positive components and weakening the negative components on functional efficiency of space in residential architecture, the design process can be guided in an architectural format. Manuscript profile -
Open Access Article
634 - Cultural economy analysis in the space of Gilan province
farhad barandak Lili Mohamadi AslCulture is an important pillar of the society that through ensuring effectiveness in economic sense brings about effective developments in the society The purpose of present study is to compare the relative efficiency of Counties of Gilan and identify the efficient Coun MoreCulture is an important pillar of the society that through ensuring effectiveness in economic sense brings about effective developments in the society The purpose of present study is to compare the relative efficiency of Counties of Gilan and identify the efficient Counties, in terms Cultural development and productivity. Applied-analytical method was used and statistical population includes Counties of Gilan. Data Envelopment Analysis model is used to determine the efficiency ratio of DMUs and to distinguish efficient and inefficient DMUs. For the units that are identified as efficient by CCR-I model, Anderson–Pearson (AP) was used. For analyzing data, LINGO and DEAP software was used. Findings showed that 8 Counties (in CCR-I) and 11 Counties (in BCC-I) have been efficient. Final ranking is as follows (in efficient Counties in the CCR-I): Rasht> Lahijan> Astara> Amlash> Talesh> Rezvanshahr> Roodbar> Bandar-e Anzali Finally, virtual DMUs were introduced as a pattern for inefficient DMUs. Inefficient DMUs will achieve efficiency if they can be promoted to achieve the conditions of their similar virtual DMUs. Manuscript profile -
Open Access Article
635 - Assessment of the efficiency of banks accepted in Tehran Stock Exchange using the data envelopment analysis technique
mehdi esfandiar hossein jahangirnia -
Open Access Article
636 - Interval Efficiency Assessment in Network Structure Based on Cross –Efficiency
nasim roudabr seyed esmaeil najafi -
Open Access Article
637 - Evaluating the Production Materials Suppliers of Saipa Industrial Group by Using Data Envelopment Analysis(DEA)
A. Javadinia A. Gholam Abri -
Open Access Article
638 - A Hybrid Method of DEA and MODM in Grey Environment
Alireza Alinezhad -
Open Access Article
639 - The relation of the management styles with the managerial efficiency and the ranking in the executive agencies: the case of Mazandaran
Ahmad Jaafarnezhad Hamzeh Samadi Miarkolaei Hossein Samadi Miarkolaei -
Open Access Article
640 - Amelioration of the acid blue oxidation process by as-synthesized ZnO nanoparticles: Optimization of the dye and photocatalyst concentration together with the pH of the solution
Mehrnaz Gharagozloua Sanaz Naghibi Mohammad Ebrahim Olya -
Open Access Article
641 - Heavy metals removal from wastewater by using different kinds of magnetite nanoadsorbents: effects of different organic and inorganic coatings on the removal of copper and lead ions
Hadi Baseri saeed Tizro -
Open Access Article
642 - An optimization and characterization study on sodium ferrate production by electrochemical method
Sina Samimi-sedeh Ehsan Saebnoori Ali Hassanzadeh -
Open Access Article
643 - Determine the most appropriate corrective method to estimate suspended sediment load (Case Study: Tange Bostanak Watershed)
احمد Nohegar محمد Kazemi seyed javad Ahmadi حمید Gholami رسول MahdaviAccurate estimation of the sediment amount carried by a watershed drainage system in the design of all projects in water and soil conservation is essential. Due to convert logarithmic sediment rating curves, sediment regression equations is necessary to correct too bias MoreAccurate estimation of the sediment amount carried by a watershed drainage system in the design of all projects in water and soil conservation is essential. Due to convert logarithmic sediment rating curves, sediment regression equations is necessary to correct too biased. The present study aims to evaluate the performance of five methods of rating curve including FAO, MVUE, QMLE, LRC, Ls and β in the case of no category situations. Root mean square of error, coefficient of efficiency indicators, General Standard Deviation, Precision, Difference relation and Relative error were used to evaluate the performance of sediment rating curves and to choose the best of them. The result showed LQMLE method with RMSE=3.663, CE=92.1, GSD=0.556, r=1.01, RE=33% and P=1.01 is the best method of calculating sediment and FAO and LS models (with root mean square error of 6.24 and efficiency coefficient 76.3), (the root mean square error of 4.87 and 85.7 efficiency coefficient) are the weakest model in estimating the suspended sediment basin. n general, different methods and different correction factors in non-categorized of sediment rating curves, can be concluded that in most models and methods LQMLE and MVUE are the best methods of estimating the suspended sediment load. Manuscript profile -
Open Access Article
644 - Response of nitrogen physiological efficiency of safflower to animal and chemical fertilizers in Kashan region
Mohammad Mirzakhani Marjan Ghanbari Kashan Sid Amir Farid HashemiIn order to study the response of nitrogen physiological efficiency of safflower to animal and chemical fertilizers in Kashan region, this study was carried out in 2014. A factorial arrangement of treatments in a randomized complete block design with three replications MoreIn order to study the response of nitrogen physiological efficiency of safflower to animal and chemical fertilizers in Kashan region, this study was carried out in 2014. A factorial arrangement of treatments in a randomized complete block design with three replications was used. Chemical fertilizer treatment (F1= Control, F2= 50 kg ha-1 of nitrogen + 25 kg ha-1 of P2O5, F3= 100 kg ha-1 of nitrogen + 50 kg ha-1 of P2O5, F4= 150 kg ha-1 of nitrogen + 75 kg ha-1 of P2O5) and animal manure treatment (M1= Control, M2= 20 ton ha-1, M3= 40 ton ha-1) were assigned in plots. Each plot consisted of 4 rows, 5 m long with 50 cm between rows space and 5 cm between plants on the row was used. Stem height, number of boll per m2, harvest index, oil yield, weight of boll, protein yield, phosphorus percentage, nitrogen absorption amount, nitrogen superficial recovery, nitrogen physiologic efficiency, and phosphorus use efficiency were assessed. Results indicated that the interaction effects of chemical fertilizer and animal manure on the characteristics such as oil yield, weight of boll, protein yield, phosphorus percent, nitrogen absorption amount, nitrogen appear recovery, nitrogen physiologic efficiency, and phosphorus use efficiency were significant. The maximum and minimum oil yield (254.3 and 75.33 kg ha-1) were obtained with the treatment (150 kg ha-1 of nitrogen + 75 kg ha-1 of P2O5 + 20 ton ha-1 of animal manure) and (no application of the chemical and animal manure),respectively. Manuscript profile -
Open Access Article
645 - Effect of different levels of biochar on physiological traits of pumpkin under water shortage stress
Ali reza Safahani Reza NooraBiochar has recently attracted lots of attention as a viable strategy for increasing crop productivity. Water shortage limits the productivity of agriculture, and one possible solution to this problem is the application of biochar. The objective of this study was to inv MoreBiochar has recently attracted lots of attention as a viable strategy for increasing crop productivity. Water shortage limits the productivity of agriculture, and one possible solution to this problem is the application of biochar. The objective of this study was to investigate the effects of biochar on physiology and yield of pumpkin (Cucurbita pepo L.) under different irrigation regimes. For this purpose, a factorial experiment in randomized complete block design with four replicates was conducted in Gorgan, in two successive years (2014-2015) and consisting of a factorial combination of four irrigation regimes including 45%, 60%, 75%, and 90% (I1-I4) of maximum allowable depletion (MAD) of available soil water (ASW) and biochar was applied at rates 0, 5, 10, and 20 tons per ha(B0–B20). Drought increased the activity of antioxidant enzymes, and the content of reactive oxygen species in leaf compared to control. In contrast, all of the antioxidant activities, reactive oxygen species and proline contents of leaves in soil treated with biochar, particularly at B20 biochar, declined. With the addition of biochar, the contents of MDA, O2•− and H2O2displayed remarkable decrease, however, maximum and minimum of these substances belonged to I4B0 and I1B20, respectively. Interestingly, biochar application alleviated the negative impact of reduced irrigation on the leaf gas exchange parameters, crop yields, water use efficiency, chlorophyll content, uptake of nutrients, and plant water status. Measured and simulated results revealed a special biochar application threshold for each irrigation regime with respect to seed yield. Response rate to biochar was ceased at lower biochar rates by prolonging irrigation. But the response of I2 treatment to biochar ceased at higher biochar rate as Bcritical (14 t ha-1). This implies that I2 improved response of pumpkin to biochar, which was accompanied by its higher WUE. These results indicate that biochar amendment could be considered as a successful strategy for improving the water productivity and increased crop production in study region (Gorgan). Manuscript profile -
Open Access Article
646 - The Effect of external abscisic acid on some physiological factors and gas exchanges of Lavender (Lavandula angustifolia cv. Organic Munestead) in response to drought stress
Hossein Gorgini Shabankareh sarah khorasaninejad vahid shariati hasan soltanlooIn order to study the effects of irrigation and abscisic acid regime on physiological factors and gas exchanges of Lavandula angustifolia CV. Organic Munestead, a pot experiment was conducted as factorial based on randomized complete block design with three replications MoreIn order to study the effects of irrigation and abscisic acid regime on physiological factors and gas exchanges of Lavandula angustifolia CV. Organic Munestead, a pot experiment was conducted as factorial based on randomized complete block design with three replications at Plant Production faculty of Gorgan University of Agricultural Sciences and Natural Resources, during growing season of 2016- 17. The treatments were four levels of irrigation regimes (30-40, 50-60, 70-80 and 90-100 percent field capacity) and Abscisic acid including three levels (0, 15 and 30 Mm/L). The results showed that irrigation regimes increase chlorophyll a, chlorophyll b, chlorophyll a+b, gas exchange and RWC. Abscisic acid had significant effect on all traits except of carotenoid content that except to efficiency of water consumption was Abscisic acid 15 Mm/L, the others were the highest in Abscisic acid 30 Mm/L. Also interaction effect of irrigation regimes and Abscisic acid was significant for all traits except of chlorophyll a+b. Abscisic acid 15 Mm/L spray and irrigation regimes 30-40 percent field capacity increase 25.04 and 38,75 in efficiency of leaf water consumption and efficiency of water consumption, respectively. Generally, Abscisic acid 15 Mm/L application and irrigation regimes 30-40 percent field capacity Introduces the best treatment, due to the lower consumption of water and the use of Abscisic acid in stress conditions, higher levels of Abscisic acid can be achieved in inducing drought tolerance. Manuscript profile -
Open Access Article
647 - Effect of organic, biological and chemical fertilizers on yield and efficiency elements of sesame
farzad babaei Esmael Ganghene Afshin Mozafari Mohammad Mirzaei Heidari Rahim NaseriIn order to investigate the effect of organic, bio-chemical fertilizers on yield and efficiency components of sesame, a factorial experiment was conducted in Randomized Complete Blocks Design with three replications in two crop years in Kermanshah in 2017-2018. The firs MoreIn order to investigate the effect of organic, bio-chemical fertilizers on yield and efficiency components of sesame, a factorial experiment was conducted in Randomized Complete Blocks Design with three replications in two crop years in Kermanshah in 2017-2018. The first factor consisted of nitrogen fertilizer with four levels of zero, 33, 66 and 100% nitrogen, and the second factor consisted of inoculation with four levels of seedless biofertilizer, Azotobacter inoculation, Azospirillum inoculation and mixing with both bacteria. . The experiment was conducted each year on three land plots including control, 10 ton manure and 10 ton municipal waste compost. The results showed that the effect of nitrogen and biological fertilizer levels on grain yield and biological yield were significant in all three environments. The highest values of grain yield and biological yield were obtained in the combination of Azotobacter and Azesprillium fertilizers in all three media. The highest grain yield (1298 kg / ha) was observed in the control medium in 100% nitrogen requirement, in the fertilizer medium in 33% nitrogen requirement (1565 Kg / ha) and in the compost medium were obtained with 66% nitrogen (1799 kg / ha). Overall, the results showed that the combination of biological fertilizers with manure or compost could save the fertilizer application and also have acceptable yield. Also, the use of biological fertilizers and organic fertilizers increased the efficiency of use of the elements, which could eventually increase round yields in addition to lower production costs. Manuscript profile -
Open Access Article
648 - Investigation of the effect of plant density and humic acid on paddy yield, water use efficiency, and biochemical traits of direct-seeded rice cultivation (Oryza sativa L.) in northern Iran
Manizhe Kalteh Hossein Ajam Norouzi Abolfazl Faraji Abdol Aziz Haghighi Ebrahim Gholamalipour AlamdariThe transition from transplanting rice cultivation to direct-seeding rice cultivation has recently begun in Iran, especially in Golestan province. No information is yet available on the effect of humic acid and plant density on paddy yield and some of its biochemical tr MoreThe transition from transplanting rice cultivation to direct-seeding rice cultivation has recently begun in Iran, especially in Golestan province. No information is yet available on the effect of humic acid and plant density on paddy yield and some of its biochemical traits. For this purpose, an experiment was conducted in a research farm located in Gonbad city during May to September 2019 in the form of split plot-factorial based on randomized complete block design with three replications. Plant density (plant spacing per row) was considered as the main factor with 4 levels (5, 10, 15, and 20 cm) and humic acid consumption at 2 levels (humic acid consumption, no humic acid consumption) was considered as subplots. Humic acid fertilizer with a concentration of 250 ml per hectare was added in three stages including tillering (4-6 leaves), stalking (20-30 days after tillering), and before panicle initiation. Results showed that the effects of plant spacing on row and humic acid application on 1000-seed weight, paddy yield, biological yield, harvest index, grain protein, water use efficiency, and chlorophyll a and b and total chlorophyll were significant. Considering 5 and 10 cm plant spacing on rows along with humic acid application had the highest rice yield and water use efficiency. Also, chlorophyll content showed a significant change with increasing plant density and application of humic acid with a significant increase in chlorophyll a and b, which in turn was effective in increasing paddy yield. Rice protein also showed the highest level in 10 cm spacing between plants on each row along with the application of humic acid. Manuscript profile -
Open Access Article
649 - Effect of substrate and humic acid on some morphophysiological traits and water consumption of Carpobrotus edulis L. in a green roof system
Maliheh Rabbani Kheir Khah Fatemeh KazemiThe health of plants in green roof conditions depends to a large extent on the supply of water required by plants. The composition of the substrate is effective in maintaining the moisture and making it available to the plant, and one of the solutions to reduce water co MoreThe health of plants in green roof conditions depends to a large extent on the supply of water required by plants. The composition of the substrate is effective in maintaining the moisture and making it available to the plant, and one of the solutions to reduce water consumption in the green roof is improving the substrate. In this study, water requirement and some morphophysiological traits of Carpobrotus edulis L. were studied under substrate and humic acid treatment. The research was conducted in green roof box conditions as a factorial experiment based on a randomized complete block design with three replications from May to September 2020 in Mashhad. The first factor was substrate including Substrate 1 (soil 20% + 20% Leica + 20% perlite + mineral pumice + 20% leaf soil), Substrate 2 (substrate 1 + 6% by weight of bentonite), Substrate 3 (substrate 1+ 12% by weight of bentonite), soilless Substrate 4 (27% mineral pumice + 27% Leica + 27% perlite + 20% leaf soil), Substrate 5 (substrate 4 + 6% by weight bentonite), and Substrate 6 (substrate 4+ 12% by weight of bentonite). The second factor was the concentration of humic acid (0, 100, and 200 mg L-1) applied as fertigation every 15 days. Soil-containing substrates performed significantly better than soilless substrates and the highest coverage, root length, and volume of green roof plants were observed in substrate 3 (containing soil and 12% by weight of bentonite). The highest leaf water and chlorophyll contents and the lowest relative saturation deficit, carotenoids, phenols, and leaf carbohydrates were observed in Substrate 3, which show the physiological stability of the plant under stress conditions, was evident in substrate 3. Application of 200 mg/L humic acid was associated with the best growth and physiological performance of plants. A substrate rich in moisture and nutrients, including 20% Soil + 20% Leica + 20% perlite +20% mineral pumice + 12% w bentonite + 200 mg/L humic acid resulted in the plants with optimal water consumption. The presence of soil and mineral superabsorbent (bentonite) in the green roof substrate is especially important in terms of moisture retention, and of course, the supplementary nutrition of plants in the green roof also improves their performance in the green roof. Manuscript profile -
Open Access Article
650 - Function of municipalities in the framework of urban good governance:(case study: the municipality of Malayer)
الناز زندیهFavorable urban government takes a deconstructive approach towards urban development planning and adopts the communicative urbanization model through the cooperation and interaction among the major actors in urban management; that is, the civil society, the government a MoreFavorable urban government takes a deconstructive approach towards urban development planning and adopts the communicative urbanization model through the cooperation and interaction among the major actors in urban management; that is, the civil society, the government and the private sector. It seems, therefore, that the institution of the urban management which comprises of the municipality and the city council in Iran can be one of the best mechanisms for the favorable urban government to be possible. The present study aims to define and to carry out a comprehensive analysis of the favorable urban government. It will also present a series of indices for the development of favorable urban government in Iran and will study these indices in terms of urban management in Malayer, Iran. The approach adopted in the present study is descriptive-analytic. The data has been analyzed using IBMSPSS and Excel and the variables have been evaluated using the Likert scale. Results signify low levels of all the favorable urban government indices except for the cooperation index in Malayer. Manuscript profile -
Open Access Article
651 - City and Thinking: a Solution Based on contemplation quality in Islamic Geometric Patterns.
Ehsan AzarHomayoun Parisa Alimohammadi Ataollah TahaeiOur cities are seldom a place for staying, isolation of functions, priority of vehicle access and therefore monotone residential areas have made cities for us merely in charge of going and passing and required services, there is no place for gathering and belonging to s MoreOur cities are seldom a place for staying, isolation of functions, priority of vehicle access and therefore monotone residential areas have made cities for us merely in charge of going and passing and required services, there is no place for gathering and belonging to society. The feeling that nowadays our life in in permanent lack of time has had a main role in such a perception.Beyond an area for meeting the requirements, the city is a public area and the credit for the social coherence has a direct relation with the amount of the time devoted to optional activities in the city. What we call contemplation can be fulfilled with a dedication of time to it, and beyond that, we argue that contemplation is the very perception of time and temporality.Islamic geometric patterns are known with an invitation for contemplation and we are convinced that the very contemplation is an invitation for staying and taking part in task of seeing. This that how it would be possible is our primary question. The later and main question is how could we find an equivalent in our cities?This essay is performed through case study, primarily with a study in perception of Islamic geometric patterns and grasping of now and call for contemplation, we expand our study to approach analysis of the last decade remarkable specialists. With the evaluation performed by the composer approaches taken by SANAA architects and Jan Gehl and Peter Oldenburg acted as the matter of inquiry. Manuscript profile -
Open Access Article
652 - Proper Placement of Photovoltaic Panels on the Facade of Urban Areas to Improve Energy Efficiency
Fateme yarmohammad Fateme Mehdizadeh Seraj Seyed Ali NuriDue to the crisis of the lack of energy resources and environmental pollution, it is necessary to use alternative and renewable energy. This has led to a growing trend in the use of solar systems, one of the most important sources of renewable energy. Photovoltaic panel MoreDue to the crisis of the lack of energy resources and environmental pollution, it is necessary to use alternative and renewable energy. This has led to a growing trend in the use of solar systems, one of the most important sources of renewable energy. Photovoltaic panels are one of the main applicable existing solar power systems. Due to the limited space in building roofs to install such panels, combining them with the façades of buildings has received enormous consideration. In this article, first, the effective factors in efficiency and productivity of BIPV¹ panels were evaluated; then, the effects of combining photovoltaic panels with the main façade components, including curtain walls, façades, and canopies, on energy efficiency were examined and compared. To reach the goal of this research, an office building was simulated in Grasshopper software; photovoltaic panels were installed in different components of its southern façade using Honeybee and Ladybug plugins, and the energy efficiency of each component was analyzed. Moreover, the other effective factors on the location of panels’ installation, including their layout, type, module energy efficiency, cost, variety of patterns, light transmission, market limitation, the optical quality of panels’ glass, and the effect of rainfall and snow cover, as well as their effectiveness level were studied, weighted, and ranked using the Shannon Entropy Approach. The results revealed that combining the panels with the same area by a canopy, the main body of the façade, and the curtain wall had the highest effects on energy efficiency, respectively. Manuscript profile -
Open Access Article
653 - Evaluating and Selecting Recycling Centers in Lead-Acid Battery Supply Chain using DEA: A Case Study
Mona Ghalandari Mohammad Amirkhan hossein Amoozad-khalili -
Open Access Article
654 - Robust DEA Models for Performance Evaluation of Systems with Continuous Uncertain Data under CRS and VRS Conditions
Mohammad Amirkhan -
Open Access Article
655 - A Cutting-edge Metaheuristic Approach Based on The Manifold Distance for Energy-efficient Clustering in WSN
Faraein Aeini -
Open Access Article
656 - A Dynamic Network Data Envelopment Analysis Model to Calculate the Efficiency of Wheat Farms
Shahin Rajaei Qazlue Ahmad Mehrabian Kaveh Khalili-Damghani Mohammad Amirkhan -
Open Access Article
657 - An Investigating the impact of human resource accounting on the organization's financial efficiency in the context of small and medium enterprises in Asalouye region
saleh shahabi ebrahim abbasi abbas allahyariObjective: The purpose of this study is to determine the effect of human resource accounting on the financial efficiency of the organization in the context of small and medium enterprises in the special region of Assalouye.Methods: The descriptive-survey research method MoreObjective: The purpose of this study is to determine the effect of human resource accounting on the financial efficiency of the organization in the context of small and medium enterprises in the special region of Assalouye.Methods: The descriptive-survey research method is of applied type and it was done by SPSS software version 20 and the validity and reliability of the data was done using Cronbach's alpha test. The research data was collected cross-sectionally and in the year 2022, through a questionnaire. Human resource accounting, human efficiency, profitability, return on assets, return on equity are among the variables of this research. The statistical population is the small and medium companies of the special region of Asaluyeh, and the statistical sample was selected using Morgan's table and 196 people including managers, employees, accounting and financial experts active in this company.Results: The results show that human resource accounting has a positive and significant effect on the financial efficiency of the organization in the field of small and medium-sized companies in the special region of Asalouye.Conclusion: Therefore, human resource accounting can have an effect on organizational productivity indicators such as human efficiency, profitability, return on assets, return on equity in small and medium-sized companies in Asalouye region, which ultimately improves the stability of the company, the continuity of activity and the growth of the company. comes with Manuscript profile -
Open Access Article
658 - Investigating the relationship between organizational culture and the efficiency and job satisfaction of secondary school teachers
Nafise Tavusi Fateme Hamidi FarThis study examines the relationship between organizational culture and teachers' job satisfaction and efficiency. The current research is a quantitative and survey research. The research tools were standard questionnaires. For validity, face validity and experts' opini MoreThis study examines the relationship between organizational culture and teachers' job satisfaction and efficiency. The current research is a quantitative and survey research. The research tools were standard questionnaires. For validity, face validity and experts' opinions were used in relation to questionnaires, and Cronbach's alpha coefficient was used for reliability. The statistical population in this research is all the teachers of the second level of secondary schools in the 12th district of Tehran, which is 265 people. The sample size was determined using Morgan's table of 155 people. Also, the sampling method in this research is a one-stage cluster method. Considering the normality of the studied variables, simple linear regression was used to test the hypotheses in spss software. The findings indicated the confirmation of all hypotheses, i.e. the effect of organizational culture on the efficiency and job satisfaction of teachers. The significance level of the F test in the variables of efficiency and job satisfaction is less than 0.05, so it can be said that the coefficient of the regression equation related to the dependent variables of efficiency and job satisfaction is opposite to zero. The coefficient of multiple determination related to efficiency and job satisfaction is 0.11, which shows that almost 11% of the share of dependent variables of efficiency and job satisfaction is explained by the independent variable of organizational culture. Therefore, in order to preserve human capital and improve the satisfaction and efficiency of teachers, it is necessary to improve the organizational culture in schools. Manuscript profile -
Open Access Article
659 - Promoting the Culture of Benevolence and Charity and Its Role in Strengthening the Efficiency of the Country's Formal Education System
Arman Rostami Aliasghar Mashinchi Seyed Ahmad Hashemi Abbas Gholtash -
Open Access Article
660 - The effect of heterogeneous social structure on the inefficiency and instability of parties in the second Pahlavi period
Aliakbar Mohammadialamuti sina foroozeh Gholam hossein zargarinezhadAlthough different researchers have investigated various factors in the instability of parties and their inefficiency in the second Pahlavi period, but it can be said that the expansion of Iran and the heterogeneous social structure of Iranian society is one of the reas MoreAlthough different researchers have investigated various factors in the instability of parties and their inefficiency in the second Pahlavi period, but it can be said that the expansion of Iran and the heterogeneous social structure of Iranian society is one of the reasons for its social divisions during the course of history, especially in After Reza Shah's coming to power, it has become more widespread and the social consensus necessary for political development and above all the formation of political parties has been reduced. National unity is of particular importance in societies that are made up of several ethnicities, groups and subcultures and is an important factor in political and social stability and cohesion without external control. "The consequences of the existence of heterogeneous social platforms, such as the widening of the ethnic-religious gap, the creation and expansion of the gap between traditionalists and modernists, the increase of the class gap between people and ideological conflicts among the political elites involved in the activities of political parties, caused Political parties could not achieve the desired efficiency and stability during the second Pahlavi period. Manuscript profile -
Open Access Article
661 - The jurisprudential challenges of waiting sukuk; A look at jurisprudential historical texts
Manoochehr Ghafoori Mohammad Sadeghi Aliireza RajabzadeThe present study aims at the jurisprudential challenges of waiting sukuk; Siri has been done in historical jurisprudential texts. In this research, the research method is descriptive-analytical and the method of data collection is library. The results showed that since MoreThe present study aims at the jurisprudential challenges of waiting sukuk; Siri has been done in historical jurisprudential texts. In this research, the research method is descriptive-analytical and the method of data collection is library. The results showed that since bonds are based on interest-bearing loans, they are considered usury from the Islamic point of view and are forbidden; Therefore, in Islamic countries, these bonds can not be used for financing. To solve this problem, participation papers were first issued; But because these bonds are issued on the basis of a physical plan, and when companies have difficulty purchasing assets and providing liquidity, the bonds have no practical partnership, financial specialists designed new financial instruments. The same sukuk was created.The present study aims at the jurisprudential challenges of waiting sukuk; Siri has been done in historical jurisprudential texts. In this research, the research method is descriptive-analytical and the method of data collection is library. The results showed that since bonds are based on interest-bearing loans, they are considered usury from the Islamic point of view and are forbidden; Therefore, in Islamic countries, these bonds can not be used for financing. To solve this problem, participation papers were first issued; But because these bonds are issued on the basis of a physical plan, and when companies have difficulty purchasing assets and providing liquidity, the bonds have no practical partnership, financial specialists designed new financial instruments. The same sukuk was created. Manuscript profile -
Open Access Article
662 - Causes of inefficiency and development of parties in Iran during the first Pahlavi period (Case study : the Social Democratic Party (Egtemaeeyoun Ameeyoun) from 1905-1911)
somaieh emadi rastegar sina forozesh Gholamhossein ZargarinejadThe Democratic Party with the name "Amoun Socialist Sect" entered the country's political scene in the years when the Iranian society was passing through the stormy path of the constitutional revolution from the second parliament of the National Council and became the f MoreThe Democratic Party with the name "Amoun Socialist Sect" entered the country's political scene in the years when the Iranian society was passing through the stormy path of the constitutional revolution from the second parliament of the National Council and became the first and most important political party of the organization with the influence of the European party systems.This party was considered the main symbol of the radical (revolutionary) current, with 28 members in the second parliament and having a clear mission statement and with a program including the complete separation of the political power from the clerical power, the establishment of a compulsory system, compulsory education and the distribution of property among subjects. He worked against the moderate party, which was mainly composed of nobles and clerics. The main issue of this article is why the Democratic Party, which had a more advanced and progressive organization than other parties, could not implement its plans and finally became an ineffective party?The basic finding of the current research is that the factors of inefficiency and non-continuity of the Democratic Party depend on two categories of internal and external factors, among which are the tendency towards imported ideology, the weakness of civil society, autocratic political socialization, not matching with cultural and political issues. and social, Islamization and threats of terror, dependence on foreign governments, disbelief in the position and function of parties, economic attitude and how to reform, and differences of opinion and multiple views. Manuscript profile -
Open Access Article
663 - Efficiency of 4 stage supply chain in presence of non discretionary , undesirable and negative factors Using SBM model in DEA
mehdi shoga farhad hoseinzadeh lotfi امیر غلام ابری Alireza Rashidi KomijanThe purpose of this paper is to evaluate the performance of a four-stage supply chain in the presence of uncontrollable, undesirable and negative data in the cement industry. For this purpose, the Slack-Based Measure (SBM) model in network data envelopment analysis is p MoreThe purpose of this paper is to evaluate the performance of a four-stage supply chain in the presence of uncontrollable, undesirable and negative data in the cement industry. For this purpose, the Slack-Based Measure (SBM) model in network data envelopment analysis is presented to evaluate the performance of such chains. Then, 42 cement companies present in the stock exchange and securities, the corresponding chain of each of which has four stages of supplier, producer, distributor and customer, were evaluated during the period 1394-1394. Based on the implementation of the model, 5 companies have been efficient for three consecutive years and the efficiency score of the rest of them has been less than 1 in all years or some years. Manuscript profile -
Open Access Article
664 - Improving the Efficiency of Household Electricity Consumption and Its Return Effect in Iran In Terms Of Asymmetry in Electricity Prices
azar alidadi pour musa khoshkalam khosroshahiThe purpose of this paper is to estimate the size of the direct return effect related to electricity consumption in the domestic sector of Iran in terms of asymmetry in electricity prices using the conventional least squares method. For this purpose, and considering the MoreThe purpose of this paper is to estimate the size of the direct return effect related to electricity consumption in the domestic sector of Iran in terms of asymmetry in electricity prices using the conventional least squares method. For this purpose, and considering the separation of electricity prices based on the Dargi and Gitley (1995) study, annual data for the period 1397-1347 and estimating the elasticity of electricity demand have been used. The results showed that first, improving the efficiency of household electricity consumption has a return effect and second, the return effect in the household sector is equal to 43%; That is, with a 10% increase in home appliance technology, 4.3% of the expected reserve due to the improvement of electricity consumption efficiency did not occur and this amount appeared in the form of a return effect and only 5.7% of the expected reserve in electricity consumption was realized. Based on the findings, it is suggested that economic policymakers, by accurately estimating the return effect, while achieving the goal of saving electricity consumption, also avoid wasting resources. Manuscript profile -
Open Access Article
665 - Role of Financial Development in Monetary Policy Effectiveness in determinate of Input and inflation
Seyedeh Maryam Monfared Teymoor Mohammadi mohammad khezri Oranoos ParivarThe purpose of this study is to investigate the impact of financial development on efficiency of monetary policy in Iran during 1979-2020. The ratio of banks' domestic credit to GDP was considered as an indicator of financial development based on banking sector and rati MoreThe purpose of this study is to investigate the impact of financial development on efficiency of monetary policy in Iran during 1979-2020. The ratio of banks' domestic credit to GDP was considered as an indicator of financial development based on banking sector and ratio of the value of stock market transactions to GDP was considered as an indicator of financial development based on the capital market. In this regard, 4 models were introduced to achieve research objectives and were estimated using the Kalman-Filter approach. The results of estimating the first two models of the research showed that with improvement of financial development indicators, the efficiency of monetary policy in influencing economic growth will decrease. The results of estimating the third and fourth models of the study also showed that effect of financial development indicators on efficiency of monetary policy in impact on inflation has been negative and statistically significant, meaning that with improvement of financial development indicators in country, monetary policies will lead to lower inflation. Manuscript profile -
Open Access Article
666 - Analysis the Effect of Inefficiency in Labor Investment on Tax Avoidance in a Selection of Export Companies in Tehran Stock Exchange
shahryar zaroki Mohamad Abdi Seyyedkolaee sudabe BararjaniTax avoidance reduces the outflow of cash from the company to the government, which from the past to the present is considered a value for shareholders. Therefore, considering such a necessity, the present study, in order to help tax administrators, examines the effects MoreTax avoidance reduces the outflow of cash from the company to the government, which from the past to the present is considered a value for shareholders. Therefore, considering such a necessity, the present study, in order to help tax administrators, examines the effects of investment inefficiency in the labor force on corporate tax avoidance activities for a sample of 64 export companies in Iran during the period of 2009 to 2019. For this purpose, in two stages, Dynamic Panel Data method and Generalized Method of Moment (GMM) estimator were used; in this way, first, the inefficiency of investment in labor was estimated and then its effect on corporate tax avoidance was estimated. The results of estimating the research model indicate the direct effect of investment inefficiency in the workforce on corporate tax avoidance. In addition, the results showed that the market value and size of the company are associated with a direct and inverse effect on tax avoidance, respectively. Thus, increasing ambiguity, a weaker control environment, and a reduction in expected cash flows due to inefficient investment in the workforce provide opportunities for the company's manager to increase tax avoidance, and tax policymakers need to pay special attention to this issue. Manuscript profile -
Open Access Article
667 - Identifying and Determining Factors Affecting the Resilience of the Iranian Banking System
Azadeh Afshari Sara Ghobadi Hosein Sharifi RenaniAccording to the emphasis of the Ball Committee, the survival rate of any economy is proportional to the resilience rate of its banks, and, when economic crises occur, the resilience of banks is too important. Then the purpose of this research is to investigate the indi MoreAccording to the emphasis of the Ball Committee, the survival rate of any economy is proportional to the resilience rate of its banks, and, when economic crises occur, the resilience of banks is too important. Then the purpose of this research is to investigate the indicators of the development of the banking sector that can affect the resilience of the Iranian banking system. Therefore, with the help of previous research, some factors were identified and the data were collected for 30 banks and credit institutions during the years 2000 to 2020 in the form of unbalanced panels. After that, the level of resilience was calculated with the help of the Volare index, and the type of relationships was evaluated with the help of the dynamic data panel method. The results showed that among the 18 indicators investigated as factors affecting the resilience of the Iranian banking system, only 9 factors are nonlinearly related to resilience. Resilience variables of the previous period, banking efficiency, the ratio of Interest-Free Income to total income, and the ratio of low-cost resources to total resources, have a direct relationship with resilience, and the indicators of bank size, shareholders' equity to debt, the ratio of loans to free resources, the ratio of the cost of doubtful loans to total expenses and the level of risk tolerance, had an indirect relationship. Also, private or public banks had no significant relationship with resilience. In conclusion, the resilience process of Iranian banks from 2000 to 2020 was drawn. Manuscript profile -
Open Access Article
668 - Bootstrap-DEA efficiency: Radial and non-radial approaches in the banking industry
mohamadreza pahle mahdi fathabadi parvane salatinThis article aims to assess the efficiency of 15 stock market banks over the period 2014-2022. Utilizing non-parametric radial efficiency (Debreu-Farrell efficiency) and non-radial efficiency (Russell efficiency) methods, we analyze constant, non-increasing, and variabl MoreThis article aims to assess the efficiency of 15 stock market banks over the period 2014-2022. Utilizing non-parametric radial efficiency (Debreu-Farrell efficiency) and non-radial efficiency (Russell efficiency) methods, we analyze constant, non-increasing, and variable return-to-scale technologies. Recognizing limitations within radial methods, bias-corrected technical efficiency is also estimated using bootstrap data envelopment analysis. Radial analysis reveals inefficiency among all banks except for the Middle East bank. The average Debreu-Farrell efficiency stands at 77% under constant return to scale and 82% under variable return to scale, while the average Russell efficiency is 58% and 67% respectively. These results suggest slack in Debreu-Farrell efficiency. Bootstrap efficiency findings reveal underestimation in both radial and non-radial efficiency, thereby overstating actual efficiency levels. Bias-corrected radial technical efficiency scores from the bootstrap approach indicate inefficiency across all banks, with Dey and Sarmaye banks exhibiting particularly poor performance. Thus, adopting appropriate strategies such as non-performing loan management, increased non-interest incomes, and reduced operational costs is imperative to enhance efficiency. Manuscript profile -
Open Access Article
669 - Pattern-finding of Decent Work for Provinces by Analyzing the Efficiency of Real Boundaries in 3rd and 4th Development Plan
Mohsen Nazari esmaeal shahtahmasebiAbstract In this research, main issue is to find the indicators and provinces that inefficient and even efficient provinces can use them as references to achieve the boundaries desired in decent works. So, an analytical-descriptive methodology is used at the presence o MoreAbstract In this research, main issue is to find the indicators and provinces that inefficient and even efficient provinces can use them as references to achieve the boundaries desired in decent works. So, an analytical-descriptive methodology is used at the presence of all provinces in 3rd and 4th development plan during 2000-2007. The results pattern-finding in provinces have represented that the provinces such as Hormozgan, Tehran and Gilan are the most important ones. Also, in terms of the indicators all over the country, the results have shown a high sensitivity in the provinces regarding to the indices of relief committee members and underemployment. The consequence of this sensitivity in decision making bodies of the country is to use these indices to achieve optimum efficiency. Manuscript profile -
Open Access Article
670 - Bank and Macroeconomic Variables Efficiency in Risk Management
Mohsen Mehrara Mehdi Mehran farThis study investigates the factors affecting risk management efficiency of banking industry during 2001-2009, taking 15 public and private operating banks in Iran. For this purpose, capital adequacy ratio is considered as risk management efficiency indicator and other MoreThis study investigates the factors affecting risk management efficiency of banking industry during 2001-2009, taking 15 public and private operating banks in Iran. For this purpose, capital adequacy ratio is considered as risk management efficiency indicator and other determinants are divided into bank specific indicators and macroeconomic variables. Empirical results represent a positive relationship between the liquidity, profitability, operating efficiency, economic growth and capital adequacy ratio while credit risk and inflation rates have a negative effect on capital adequacy ratio as an indicator of risk management efficiency in banks. Manuscript profile -
Open Access Article
671 - The Reasons of Differences Between the Wages of Large Industries in Iran
hamid kordbacheh Ali souriBased on the efficiency of wage hypothesis, this paper examines the determinants of wage dispersion of large manufacturing industries using a panel of 4-digit ISIC data during the period of 1998-2007 in Iran. The findings explain that there is a significant difference b MoreBased on the efficiency of wage hypothesis, this paper examines the determinants of wage dispersion of large manufacturing industries using a panel of 4-digit ISIC data during the period of 1998-2007 in Iran. The findings explain that there is a significant difference between wages in the sampled data. By eliminating the effects of individual measured and firm characteristics such as gender, education, expert, experience, efficiency, firm size and so on. The differences in wages have remained significant yet. The results confirm the efficiency of wage theory, in which the wages dispersion cannot merely attribute to labor force characteristics. Manuscript profile -
Open Access Article
672 - TFP Growth, Technological Progress, Efficiency Changes: Empirical Evidence from Iranian Manufacturing Industries
saeed isazadeh masoud soufimajidpourThe purpose of this paper is decomposition of total factor productivity (TFP) to technological progress, technical efficiency, allocative efficiency, scale effects in Iran’s manufacturing industries. For this, a stochastic Frontier production model was estimated f MoreThe purpose of this paper is decomposition of total factor productivity (TFP) to technological progress, technical efficiency, allocative efficiency, scale effects in Iran’s manufacturing industries. For this, a stochastic Frontier production model was estimated for 135 manufacturing industries over the period 1379-1393. The findings showed that technological progress in 21 industrial groups has been grew on average 12 percent annually. In relation to technical efficiency many of technical industries have been weaken in using exist technologies or have been inefficient technically. The third factor findings showed that Iran’s manufacturing industries have been utilized from scale effects. In relation to allocative efficiency, also, all groups have experienced negative growth except Recycle group. In result, among components of total factor productivity, allocative efficiency has been more unfavorable and it refers to in Iran’s economy the resources allocate in unfavorable. On the base of the results, improvement in financing system, increasing in private sector capacitance, improvement in business space are suggested. Manuscript profile -
Open Access Article
673 - Examining Technical Efficiency of Industries and the Position of High-tech Industries in Iran
mehdi rezaei hasan valad beigi parisa yaghobi manzariThe goal of this paper is to estimate technical efficiency of the industries and the position of high-tech industries in Iran. The researchers have tried to estimate technical efficiency of 123 Iranian industries including 10 high-tech manufactures during 2008-2010. To MoreThe goal of this paper is to estimate technical efficiency of the industries and the position of high-tech industries in Iran. The researchers have tried to estimate technical efficiency of 123 Iranian industries including 10 high-tech manufactures during 2008-2010. To get the goal, a stochastic frontier production function has been used. The results represent that the technical efficiency is averagely 0.4 during the years under study. The technical efficiency of 49 industries including 6 out of 10 the high-tech industries have a technical efficiency more than the average. As well as, “manufacture of optical instruments and photographic equipment” and “manufacture of aircraft and spacecraft” have higher technical efficiency than others. Manuscript profile -
Open Access Article
674 - Dynamic Efficiency-Wage Model with Real Business Cycle
seyed fakhr aldin fakhrhoseiniThe purpose of this paper is to examine the cyclical consequences of Efficiency Wage theory when changing the workers efforts based on Dynamic Real Business Cycle model by using the data collected during 1966-2014. The equations are estimated through oleic approach (199 MoreThe purpose of this paper is to examine the cyclical consequences of Efficiency Wage theory when changing the workers efforts based on Dynamic Real Business Cycle model by using the data collected during 1966-2014. The equations are estimated through oleic approach (1999) as a space-state model in MATLAB context. The results represent that the increase of efforts variability to efficiency wage consideration causes the variables like production, consumption, labor and employment rate react less to technology shock. According to this model, higher level of workers efforts will lead to the increase of employment rate. Manuscript profile -
Open Access Article
675 - Evaluating the Effectiveness of Research Activities in Islamic Azad University Branches by Using Data Envelopment Analysis (DEA)
naghi shoja mohammad hosein darvish motevaliAbstract Given that the mission of Research Department of all universities and research institutions is to write and edit the research activities and develop or produce new sciences and change it into new technology, the evaluation of their research performance is ver MoreAbstract Given that the mission of Research Department of all universities and research institutions is to write and edit the research activities and develop or produce new sciences and change it into new technology, the evaluation of their research performance is very important. In this paper, the performance of the research department in selected branches of Islamic Azad University is measured and compared in 3 periods during 2010-2013 by using without input model of DEA. So, 5 important research indicators are determined and considered based on DEMATEL technique. The Performance of the branches are calculated by a without input model of DEA and GAMS software and then ranked by Anderson-Peterson ranking method. During the first period, 4 branches including Takestan, Karaj, Firouzkouh and Varamin are efficient. During the second period, 5 branches Parand, Takestan, Roudehen, Karaj and Firouzkouh are efficient and at last, 4 branches are highly efficient during third period, naming Parand, Takestan, Qazvin and Firouzkouh. Manuscript profile -
Open Access Article
676 - Impact of Technological Progress and Efficiency Changes on the Productivity Growth of Iran Agriculture Sector: Data Envelopment Analysis
mahdi salarieh Amir Mohamadi Nejad Reza MoghaddasiThe aim of this paper is to study the impact of technological progress and efficiency changes on the productivity growth of Iran agriculture sector by separated provinces.So, by using Data Envelopment Analysis and Malmquist model, the impacts of technological and effici MoreThe aim of this paper is to study the impact of technological progress and efficiency changes on the productivity growth of Iran agriculture sector by separated provinces.So, by using Data Envelopment Analysis and Malmquist model, the impacts of technological and efficiency changes during 2005-2014 have been investigated. The results show that efficiency changes on the productivity growth has dominant role and technological changes share is less. The findings, also, showed that the impact of labor changes has a positive impact on productivity growth while capital changes have a negligible impact on the factors of production productivity. Manuscript profile -
Open Access Article
677 - The Effect of Power and Maximum Cutting Speed on the Material Removal Rate and Cutting Volume Efficiency in CO2 Laser Cutting of Polycarbonate Sheets
Majid Hashemzadeh Mehdi Mahammadi -
Open Access Article
678 - Evaluating Organizational Performance Based on Safety Management Using Data Envelopment Analysis; Case Study: Isfahan Car Industry
Hadi Shirooyezad Negin Berjis Farimah Mokhatab Rafiei -
Open Access Article
679 - Modeling and Optimization of Industrial Multi-Stage Compressed Air System Using Actual Variable Effectiveness in Hot Regions
Shahram Azizifar Salem Banooni -
Open Access Article
680 - Relationship Between Operational Performance in Industrial Manufacturing Companies with Approaches of Innovation, Quality, Efficiency and Productivity
Marzieh Horry Najafabadi Mehrdad Nikbakht Ahmadreza Shekarchizadeh -
Open Access Article
681 - The relationship between The optimal cash holdings speed of adjustment and firm value
Mahdi Filsaraei Mohammadreza shoorvarzi Maryam AzaranThis study investigates the relationship between cash adjustment speed and company value in a studied sample of companies on the Tehran Stock Exchange. The present study is applied in terms of purpose, quantitative data in terms of data type, inductive in terms of logic MoreThis study investigates the relationship between cash adjustment speed and company value in a studied sample of companies on the Tehran Stock Exchange. The present study is applied in terms of purpose, quantitative data in terms of data type, inductive in terms of logic and descriptive-correlation in terms of execution. In this research, various sources including books, internal and external articles and the Internet have been used. Relationships between variables have been tested using correlation and multiple regression models with a dynamic panel approach. First, the collected data were classified in Excel and after organizing the variables, R statistical software was used to analyze the information. In order to test the research hypotheses, a statistical sample of 148 companies listed on the Tehran Stock Exchange was considered by the method of systematic elimination during the years 2012-2020. Based on statistical analysis and estimation of regressions, the results of examining the hypotheses at the expected error level showed that there is a significant relationship between the speed of cash adjustment and the value of the company. Institutional shareholders do not adjust the relationship between the speed of cash adjustment and the value of the company. Board independence does not regulate the relationship between the speed of cash adjustment and the value of the company. Investment efficiency does not moderate the relationship between the speed of cash adjustment and the value of the company. Corporate debt regulates the relationship between the speed of cash adjustment and the value of the company. Manuscript profile -
Open Access Article
682 - The Effect of Chief Executive's Political connection on Dimensions of Corporate Social Responsibility: with a Moderating Role of Chief Executive’s Efficiency
Javad Zanganeh Majid AshrafiCompanies having political connections can provide valuable resources for the company. On the other hand, it is necessary for companies to invest in the field of social responsibility in order to gain the trust of society. Therefore The purpose of the present study has MoreCompanies having political connections can provide valuable resources for the company. On the other hand, it is necessary for companies to invest in the field of social responsibility in order to gain the trust of society. Therefore The purpose of the present study has investigated the effect of chief executive's political connection on dimensions of corporate social responsibility due to the moderating role of chief executive’s efficiency. The dimensions of social responsibility that have been investigated in the present study include corporate responsibility in the areas of environment, social performance, human resources and products and services and for this purpose, data related to 130 corporates listed on the Tehran Stock Market during the years 2015 to 2019 were examined using multivariate regression. Findings from the test of research hypotheses showed that there is a negative and meaningful relationship between chief executive's political connection and environmental responsibility and corporate human resources responsibility, and chief executive’s efficiency moderates the relationship between chief executive's political connection and corporate environmental responsibility, and also there is no meaningful relationship between chief executive's political connection and social performance and corporate products and services responsibility. Manuscript profile -
Open Access Article
683 - Investigating the Impact of Competition in the Product Market Using the Herfindahl-Hirschman Index on the Efficiency of Investing in Human Resources in Companies Listed on the Tehran Stock Exchange
Hamid Reza Mohammadi Atefeh AbbasiNowadays, Daneshgar human resources are considered as the most important ability of the organization to gain a competitive advantage and also the main intangible asset, and the organization believes that employees should be the basis for improving the quality and effici MoreNowadays, Daneshgar human resources are considered as the most important ability of the organization to gain a competitive advantage and also the main intangible asset, and the organization believes that employees should be the basis for improving the quality and efficiency of all organizational processes The purpose of this study is to investigate the effect of competition in the product market using Herfindahl-Hirschman index on the efficiency of investment in human resources in companies listed on the Tehran Stock Exchange. The research data has been prepared using the library-documentation method and the statistical population of this research is the companies listed on the Tehran Stock Exchange during the period 1393 to 1398. Sampling was done by systematic elimination method and 124 companies were selected as a sample. This research is random, correlation and post-event. Multivariate regression technique using panel data method has been used to test the hypotheses. The findings showed that there is a significant inverse relationship between competition in the product market using the Herfindahl-Hirschman index and the efficiency of investment in human resources. Manuscript profile -
Open Access Article
684 - Energy Saving by Timely Replacing Three-Phase Induction Motors with the Help of Accurate Estimation of its Efficiency Using Modified Artificial Bee Colony Algorithm
Mehdi Bigdeli Davood Azizian Mohammad JamadiToday, most energy consumption in industry is related to induction motors. Evaluation of induction motor’s efficiency is an important issue for life estimation, extend the life and energy saving managements. Using the estimated efficiency of the induction motor, i MoreToday, most energy consumption in industry is related to induction motors. Evaluation of induction motor’s efficiency is an important issue for life estimation, extend the life and energy saving managements. Using the estimated efficiency of the induction motor, its performance can be judged and replacing the existing low efficiency motor by a high efficiency motor could be decided. In this paper, a novel and efficient method based on Modified Artificial Bee Colony (MABC) Algorithm is presented for efficiency estimation in the induction motors. The main advantage of the proposed method is efficiency evaluation of induction motor without any intrusive test. In order to demonstrate the capabilities of the proposed method, a comparison with other intelligent optimization algorithms is performed. Then, one of the important applications of efficiency estimation, which replaces the high efficiency induction motors instead of conventional motors, is discussed. The results of the calculation of energy savings show that if a standard motor is replaced with a high efficiency motor, energy savings will be significant. Manuscript profile -
Open Access Article
685 - Design and Simulation of a 20-Watt Doherty Power Amplifier at a frequency of 2.14 GHz for wireless communication systems
Shaban Rezaei Borjlu Hossein AlibagheriIn this study, a symmetrical doherty power amplifier was designed and simulated at a frequency of 2.14 GHz with high power added efficiency and output power of 20-watts. Doherty Power Amplifier generally consist of two separate power amplifiers. The main power amplifier MoreIn this study, a symmetrical doherty power amplifier was designed and simulated at a frequency of 2.14 GHz with high power added efficiency and output power of 20-watts. Doherty Power Amplifier generally consist of two separate power amplifiers. The main power amplifier enhancer is designed and developed in the AB class. Auxiliary power amplifier is designed in class C. To divide the power between the two amplifiers equally, a symmetric Wilkinson power distribution is used. Finally, using a load modulation method, a suitable power coupler is designed and simulated to combine the proper output of two amplifiers. Using the MRFG351010 transistor as an active component with GaAs-pHEMT technology, the maximum output power of 20-watts is achieved at a maximum output of 65.46% and power gain of 8.56dB. The maximum output power and power added efficiency in the saturation region of the transistor with 6dB output back off (OBO) is 36dBm and 25.3%, respectively. Manuscript profile -
Open Access Article
686 - Investigation of Using Anti-Reflecting Coatings in CZTS Solar Cells to Enhance the Light Absorption: Optimization by FDTD Method
Mina Mirzaei Javas Hasanzadeh Ali Abdolahzadeh Ziabari Mehdi MirzaeiIn the few past years, Solar cells based on Cu2ZnSnS4 (CZTS) are very promising thin-film solar cells due to their appropriate absorption coefficient and optical band gap, low-cost, non-radioactive and environmental friendly behavior. However, CZTS devices show poor eff MoreIn the few past years, Solar cells based on Cu2ZnSnS4 (CZTS) are very promising thin-film solar cells due to their appropriate absorption coefficient and optical band gap, low-cost, non-radioactive and environmental friendly behavior. However, CZTS devices show poor efficiency and identifying deficiencies and making improvements is necessary. In the present study, various anti-reflection coatings at the top surface of the solar cell were proposed. Minimization of the reflectance is carried out to optimize the thickness of ARC layers using Lumerical software. The density of the short-circuit photocurrent increases from 18.4 mA.cm−2 for solar cells without an antireflection coating to 36 mA.cm−2 for those with MgF2 layer coating. Manuscript profile -
Open Access Article
687 - A New Step-Down DC-DC Converter with Synchronous Rectifier and Soft Switching Conditions
Rohollah Khorammi Majid Delshad Hadi SaghafiIn this paper, a high step down converter with a synchronous rectifier is presented, so that both the main switch and the rectifier switch operate under soft switching condition. Since the proposed converter gain is much lower than the conventional buck converter, it do MoreIn this paper, a high step down converter with a synchronous rectifier is presented, so that both the main switch and the rectifier switch operate under soft switching condition. Since the proposed converter gain is much lower than the conventional buck converter, it does not have the problems of these converters such as narrow duty cycle, high voltage stress and high switch current, etc. In the proposed converter, the voltage stress on the switch is reduced, so a switch with lower drain-source resistance (RDS(ON)) can be used and the conduction losses are reduced. On the other hand, because the diodes of the circuit are switched off under zero current switching condition, do not have the problem of reverse recovery. Switching losses of the switches are also greatly reduced due to operating under zero voltage switching conditions. The proposed converter has been thoroughly analyzed and a practical 120 W prototype has been made to prove the correctness of the circuit analysis. Manuscript profile -
Open Access Article
688 - Control of Indoor Environmental Conditions Based on the Model and Use of Predictive Control Method
AmirReza Alizadeh Seyed Mohamad KargarIn this paper, a model predictive control approach is presented to regulate indoor temperature. In recent years, the highest energy consumption in buildings is related to heating, ventilation, and air conditioning systems. Therefore, the control of heating, ventilation, MoreIn this paper, a model predictive control approach is presented to regulate indoor temperature. In recent years, the highest energy consumption in buildings is related to heating, ventilation, and air conditioning systems. Therefore, the control of heating, ventilation, and air conditioning systems in buildings has been taken into consideration to reduce energy consumption. At first, a construction model is designed in the Energy-plus software, then all input and output data is collected from this software to identify the state-space model. Then the Model-based predictive control algorithm is applied to control the indoor building temperature. The contribution of this paper is two-fold. Firstly, the data used in the system identification section is based on the assumption that the rooms are not isolated. There is a temperature relationship between the rooms, which provides a more realistic model of the system. Secondly, the external ambient temperature is considered as a disturbance, and its effect on controller design has been investigated. The simulation results for 24 hours show the good performance of the model predictive control approach over the optimal control method along with reducing energy consumption while maintaining the optimal temperature conditions. Manuscript profile -
Open Access Article
689 - Overview of DC-DC Non-Insulated Boost Converters (Structure and Improvement of Main Parameters)
Omid Sharifiyana Majid Dehghani Ghazanfar Shahgholian Sayyed Mohamad Mehdi Mirtalaee Masoud JabbariAbstract: The production of clean electricity is one of the most basic human needs today. Therefore, the use of power plants that use renewable and environmentally friendly fuels (new energy) as their base fuel, has been highly appreciated. However, the output voltage l MoreAbstract: The production of clean electricity is one of the most basic human needs today. Therefore, the use of power plants that use renewable and environmentally friendly fuels (new energy) as their base fuel, has been highly appreciated. However, the output voltage level of local power plants based on new energies is as low as the input voltage of the next floors (inverters, etc.). Therefore, researchers have tried to solve this defect by using DC / DC boost converters. The structures related to these converters are different based on the designer's expectations such as voltage gain, output power, efficiency, input voltage specifications, etc. Boost converters are responsible for increasing the DC voltage by switching and storing energy in their inductor. But the same simple structure can be created with the help of new tricks such as using magnetic coupling, adding passive incremental circuits to the converter structure, creating more complete structures by using several active switches and even combining several structures together to the desired point in terms of voltage gain. On the other hand, with soft switching methods (resonance, snubber, etc.), the efficiency of boost converters is in the acceptable range. In this paper, the types of power plants based on new energy and then boost converters, which are the most basic elements of a power plant based on new energy, it is categorized in terms of incremental structures and applied methods for optimizing these converters, especially in terms of reducing losses and increasing efficiency. Manuscript profile -
Open Access Article
690 - Design and Construction of a Water-Free Cleaning Robot for Solar Panels with the Ability to Adjust the Height
Mohammadreza Miveh Amirhossein Ahmadi Mojtaba PishvaeiToday, with the depletion of fossil fuels, the trend towards using renewable energies has increased. Among the various types of renewable energy resources, solar systems received more attention due to technical, environmental and economic reasons. However, the efficienc MoreToday, with the depletion of fossil fuels, the trend towards using renewable energies has increased. Among the various types of renewable energy resources, solar systems received more attention due to technical, environmental and economic reasons. However, the efficiency of solar panels is not high due to several reasons. In addition to using high-efficiency control equipment such as maximum power point tracking (MPPT) methods, cleaning the surface of solar panels is one of the best and easiest ways to improve their efficiency and performance. In this paper, to increase the efficiency of solar panels, a robot for cleaning solar panels with the ability to adjust the height with the help of tank wheel technology has been developed. Moreover, due to water shortages in the country, the design of this robot has been done without the use of water. Considering that the designed robot has a telecommunication system with remote control capability, the speed of cleaning is very high and there is no need for the operator. The used software in the robot provides proper scheduling for the cleaning of solar panels. In addition to the aforementioned advantages, the proposed robot has a much lower price than foreign products. The performance of this robot on the five kW solar power plant of Tafresh University has been evaluated. Increasing the efficiency of the power plant, more revenue from the sale of energy to the grid and significant savings in water consumption are the main advantages of this intelligent robot. Manuscript profile -
Open Access Article
691 - Design and Analysis of a New Structure for Non-Isolated DC-DC Boost Converters
Massoud Emamdad Ehsan Akbari Shima Karbasi Abbas Zare Ghaleh SeyyediFollowing the scarcity of non-renewable resources such as oil, gas and coal, more research is focused on the issue of high energy consumption and society's dependence on fossil fuels. The use of renewable energy and the development of microgrids can be necessary to redu MoreFollowing the scarcity of non-renewable resources such as oil, gas and coal, more research is focused on the issue of high energy consumption and society's dependence on fossil fuels. The use of renewable energy and the development of microgrids can be necessary to reduce dependence on fossil fuels. Photovoltaic systems play a key role in microgrids as a source of renewable energy supply. In these systems, the output voltage of the cell is usually much lower than the voltage required by the DC bus, and as the output current increases, the amount of this voltage decreases significantly. Therefore, the presence of a step-up DC-DC converter with a wide input voltage range is necessary to connect the low-voltage cell source and the high-voltage DC bus connected to the inverter. In this paper, a new structure is presented for non-insulated DC-DC boost converters based on voltage lift technique. The proposed converter has a proper voltage gain at output and an acceptable voltage stress on switch and diodes in comparison with recent references. The proposed converter has a switch with easier control and high reliability due to the input source common point and the output load of the converter. Analysis of the voltage stress as well as selection of suitable elements along with converter analysis in continuous mode are performed and calculation validity is confirmed by presented laboratory results. Manuscript profile -
Open Access Article
692 - Optimization of Consumed Power in Two Different DC Motors Coupled Based on Genetic Algorithm
Mehrdad Jafarboland MAhmood ZadehbagheriA single DC motor can be substituted by two different couple DC motors in submarines. By this way, by varying the speed of submarine, the power of propellant and subsequently the mechanical power of these motors would vary. One important promlem in controlling the mecha MoreA single DC motor can be substituted by two different couple DC motors in submarines. By this way, by varying the speed of submarine, the power of propellant and subsequently the mechanical power of these motors would vary. One important promlem in controlling the mechanical coupling of these motors is the power sharing between them. In the previous reports the mechanical power was shared between them in nonoptimized manner. In this paper an optimized cantroller is indroduced that optimize the efficiency of the system. The power sharing between these motors would vary according to their speed. The proposed controller is based on Genetic Algoritm and is able to share the mechanical power between the motors in an optimized manner at different speeds. The simutation results shows the well behavior of system and also the optimize power sharing. Manuscript profile -
Open Access Article
693 - A Comparative Analysis of the New Five-Pole and Three-Pole Active Magnet Bearing
Pedram Vakili Mehrdad Jafarboland Hamid Reza MomeniIn recent years, more attention has been given to the active AMBs thanks to their low maintenance cost, suitability for clean environments, and high speed. One of the popular types of AMBs is the three-pole type with integrated and separate cores. Some deficiencies of t MoreIn recent years, more attention has been given to the active AMBs thanks to their low maintenance cost, suitability for clean environments, and high speed. One of the popular types of AMBs is the three-pole type with integrated and separate cores. Some deficiencies of this type of bearing are its high oscillation, low stability and low efficiency. This paper seeks to analyse the three-pole AMBs and describe their deficiencies and introduce and analyse a new five-pole AMB. The model thus proposed has lower oscillation as well as more stability and efficiency. The five-pole AMB has been simulated by a controller in the presence of disturbance. The results of simulation demonstrate lower vibration and oscillation in the five-pole AMB in comparison with the three-pole model. Manuscript profile -
Open Access Article
694 - Efficiency Optimization Control of IPM Synchronous Motor Drives with Online Parameter Estimation
Sadegh Vaez-Zadeh Mehran ZamanifarThis paper describes an efficiency optimization control method for high performance interior permanent magnet synchronous motor drives with online estimation of motor parameters. The control system is based on an input-output feedback linearization method which provides MoreThis paper describes an efficiency optimization control method for high performance interior permanent magnet synchronous motor drives with online estimation of motor parameters. The control system is based on an input-output feedback linearization method which provides high performance control and simultaneously ensures the minimization of the motor losses. The controllable electrical loss can be minimized by the optimal control of the armature current vector. It is shown that parameter variations except at near the nominal conditions have undesirable effect on the controller performance. Therefore, a parameter estimation method based on the second method of Lyapunov is presented which guarantees the stability and convergence of the estimation. The extensive simulation results show the feasibility of the proposed controller and observer and their desirable performances. Manuscript profile -
Open Access Article
695 - Evaluating the Effectiveness of Tehran Hospitals in Attracting Medical Tourists through Grey Relational Analysis
ebtehal zandi Mohanna NikbinMedical tourism presents opportunities for hospitals to leverage their potential in providing services. Data Envelopment Analysis (DEA), known for its comprehensive and high accuracy, plays a vital role in analyzing relative efficiency and measuring the performance of t MoreMedical tourism presents opportunities for hospitals to leverage their potential in providing services. Data Envelopment Analysis (DEA), known for its comprehensive and high accuracy, plays a vital role in analyzing relative efficiency and measuring the performance of tourism industries. This study employs DEA to determine the efficiency of IPD-licensed hospitals in the field of medical tourism. The BCC and CCR output models are utilized, and gray ratio analysis is employed to compare and rank the effective units. The findings reveal that, based on the CCR model, eight out of 52 IPD-licensed hospitals in medical tourism demonstrate efficiency, while based on the BCC model, 18 hospitals exhibit efficiency, indicating inefficiency among the remaining hospitals. Furthermore, the study identifies and suggests referral hospitals based on the inefficient hospital model. It can be concluded that the return-to-fastness model is more stringent than the return-to-scale model, encompassing a smaller number of efficient units. Additionally, the calculated efficiency for each hospital in this model is lower than that in the return-to-scale model. Consequently, it is crucial for relevant managers to utilize the results of this method to enhance the efficiency of their hospitals. Manuscript profile -
Open Access Article
696 - Reviewing Optimal Percent of Steel Fibers and their Effects on Lightweight Concrete Durability
Ali Ghods sanaz chahkandi Homayon navayiAbstract In recent years, many researches are focused on optimizing the production of a kind of concrete with high strength and efficiency, and different methods including using fiber technology in concrete construction are proposed to achieve this goal. Fibers are one MoreAbstract In recent years, many researches are focused on optimizing the production of a kind of concrete with high strength and efficiency, and different methods including using fiber technology in concrete construction are proposed to achieve this goal. Fibers are one of the materials that nowadays are added to concrete as reinforcement material. Considering the low weight and good resistance of this material and using a good percent of these materials in lightweight concrete can result in smaller segments with greater resistance. In this paper, we try to study and evaluate the effects of steel fibers on the strength and also the amount of fibers in lightweight concrete. One of the strength experiments is wetting and drying which is used in this study. Also by reviewing dynamic properties of lightweight concrete made with pumice + leca and taftan and comparing with lightweight concrete which is armed with steel fiber, we can achieve the optimal percent of fiber in concrete. Experimental results are presented in graphs and charts. Manuscript profile -
Open Access Article
697 - Extending Allocation Stages of Fixed Costs Between Decision Making Units Using DEA
Hassan Rostamzadeh Ali Reza Fakharzadeh Jahromi -
Open Access Article
698 - Evaluating the Efficiency of Hospital Emergencies during COVID-19 Pandemic Crisis in the Presence of Undesirable Inputs in DEA
Abbasali Monzeli Behrouz Daneshian Ghasem Tohidi Masoud Sanei Shabnam Razavyan -
Open Access Article
699 - Stochastic Sensitivity Analysis in Data Envelopment Analysis
Nasim Arabjazi Mohsen Rostamy-Malkhalifeh Farhad Hosseinzadeh Lotfi Mohammad Hasan Behzadi -
Open Access Article
700 - Sensitivity Analysis Algorithm to Measure Fuzzy Efficiency Security Margin of DMUs: A New FDEA approach
Fatemeh Komaki Reza Fallahnejad Farhad Losseinzadeh Lotfi Mohsen Rostamy_Malkhalifeh -
Open Access Article
701 - The Effective Factors on not Using Teaching Aids in the Process of Teaching and Learning from Teachers’ Point of View in Mazandaran Province
Sadraddin Sattari AbdolReza JafarnejadThe purpose of this research was to study the teachers’ point of view on the effective factors on not using teaching aids in the process of teaching and learning in high schools in Mazandaran province. The method of the study was descriptive-survey and the populat MoreThe purpose of this research was to study the teachers’ point of view on the effective factors on not using teaching aids in the process of teaching and learning in high schools in Mazandaran province. The method of the study was descriptive-survey and the population was all teachers at high schools with more than two years service life. Out of the whole statistical population, 360 were selected randomly as sample, based on the Morgan table. The data collection was done through a researcher made questionnaire. In analysis of the collected data, the descriptive and inferential statistics were used. Results showed that several factors were effective on not using of teaching aids in the process of teaching and learning, including: negative attitude of teachers toward teaching aids, shortage and non availability of such aids, the crowding of students in each class, not mastery of teachers in using teaching aids, and inefficiency in way of school management. Manuscript profile -
Open Access Article
702 - Evaluation of the Effectiveness of E-Learning Courses in Tarbiat Modares University from the Users' Perspectives
Hassan Rastegarpour Sahar GorjizadehThe purpose of this study was to evaluate the effectiveness of e-learning courses in Tarbiat Modares University from the users’ perspectives. The method of this research was descriptive survey. The statistical population included all the graduate students (MA leve MoreThe purpose of this study was to evaluate the effectiveness of e-learning courses in Tarbiat Modares University from the users’ perspectives. The method of this research was descriptive survey. The statistical population included all the graduate students (MA level) in Tarbiat Modares University. The sample including 66 student were selected by non-random (purposive) sampling method from among IT, ICT, private law, international law, and system management majors. To gather data, a researcher-made questionnaire having 53 multiple-choice items was used. Its reliability was estimated 0/96 based on Cronbach Alpha Coefficient, and its validity was confirmed by the related experts. The results showed that users had desirable access to e-learning system, benefited from appropriate sources, suitable tests and evaluation, and appropriate presentation or instruction. However, they did not receive appropriate e_learning contents such as exercises and assignment, and also did not benefit from proper user interface. Manuscript profile -
Open Access Article
703 - The Effect of Applying Information Technology on Effectiveness and Efficiency of the Employees of Techno-Professional Organizations in Mazandaran
Javad Khalatbari Seyede Leila Hosseini Tabaghdehi Abbas ZamaniThe main purpose of the research was to study the effect of applying information technology on the effectiveness, efficiency and group decision-making of the employees of Techno-Professional Organization in Mazandaran. The method of the research was a kind of survey des MoreThe main purpose of the research was to study the effect of applying information technology on the effectiveness, efficiency and group decision-making of the employees of Techno-Professional Organization in Mazandaran. The method of the research was a kind of survey descriptive method, and the statistical population of the research included 419 people, that is, all the employees of Techno-Professional Organizations in five cities (Babol, Ghaemshahr, Sari, Neka and Behshahr). The statistical sample was 201 people which calculated by Krejcie and Morgan table. Also, the sample was selected through simple random sampling method. The measurement device was a form of Likert scale five- choice researcher-made questionnaire. Its reliability was estimated through Cronbach Alfa coefficient (a = 0/92). To analyze the research questions, the single group t test was used. The result of the research showed that the application of information technology affects the employees efficiency, effectiveness and group decision-making. Manuscript profile -
Open Access Article
704 - Efficiency of Preventing Short Message Service on Students Attitudes and Self-Efficiency towards Drug Abuse
Daruosh JalaliThe aim of the study was to compare the efficiency of preventing short message service (SMS) method with the teaching method using informative pamphlet on high school students' attitude and self-efficiency towards drug abuse. The research was a semi- experimental one wh MoreThe aim of the study was to compare the efficiency of preventing short message service (SMS) method with the teaching method using informative pamphlet on high school students' attitude and self-efficiency towards drug abuse. The research was a semi- experimental one which was done by pretest – posttest with three months follow up with control group. Statistical population included 22000 male, high- school students of Shar-e-Kord in 2010. The sample consisted of 138 students who were randomly selected using multi- stage sampling, and divided into three groups (two experimental groups and one control groups). Both experimental and control groups completed the Attitude Toward Drug Abuse Inventory (Ghorbani, 2001) and Self - Efficiency Inventory (Scheerer et al., 1998) during pretest, posttest and follow up phases. While the first experimental group received preventive short messages for 45 days, the second experimental group received information about disadvantages of drug abuse by informative pamphlet in 45 days. The results of the analysis of MANCOVA revealed that the preventive methods on changing attitude and improving self- efficiency about drug abuse were effective (P > 0/05). However the effect of SMS method was more than that of the pamphlet method. The follow-up results indicated that the effect of SMS method was permanent, while the effect of pamphlet method was not (P > 0/05). Manuscript profile -
Open Access Article
705 - بررسی کارآیی نهاده ها در زراعت گیاه دارویی شوید (Anethum graveolens L) در منطقه رودهن
ناصر حسینی الهام توکلی دینانیمقدمه و هدف: انرژی یکی از مباحث مهم بوم شناسی کشاورزی است و در این ارتباط در نقاط مختلف جهان نسبت انرژی خروجی و ورودی در اکوسیستم های مختلف کشاورزی محاسبه می شود. چنانچه بتوان میزان انرژی های ورودی به مزرعه در قالب شاخص هایی چون سموم، کودهای شیمیایی، انرژی ت Moreمقدمه و هدف: انرژی یکی از مباحث مهم بوم شناسی کشاورزی است و در این ارتباط در نقاط مختلف جهان نسبت انرژی خروجی و ورودی در اکوسیستم های مختلف کشاورزی محاسبه می شود. چنانچه بتوان میزان انرژی های ورودی به مزرعه در قالب شاخص هایی چون سموم، کودهای شیمیایی، انرژی تراکتور و نیروی کارگر را کاهش داد، علاوه بر افزایش درآمد خالص کشاورزان گام مهمی درجهت حفظ اکوسیستم مزرعه از آلودگی ها و عوامل مخرب به عمل خواهد آمد.روش تحقیق: به همین منظور بیلان انرژی در مزرعه شوید و انرژی نهاده و ستاده در سال زراعی 1389-1388 با تهیه پرسش نامه هایی از کشاورزان منطقه رودهن انجام گردید و میزان انرژی های ورودی به مزرعه در قالب نهاده های مصرفی و با توجه به ضرایب مخصوص محاسبه شد. انرژی خروجی نیز در قالب ستاده بر اساس عملکرد دانه شوید و بر پایه تجزیه ترکیبات شیمیایی و محتوی انرژی آن ها صورت پذیرفت.نتایج و بحث: در این بررسی میزان انرژی نهاده های به کار برده شده 64668971 کیلوکالری در هکتار و میزان انرژی تولیدی 804640 کیلوکالری در هکتار محاسبه شد. میزان کارآیی انرژی (نسبت ستاده به نهاده) بر اساس عملکرد دانه شوید 011/0 بوده است، که بیشترین انرژی مصرفی در کشت این محصول در منطقه رودهن مربوط به آبیاری و کود نیتروژنه است.توصیه کاربردی/صنعتی: با مدیریت صحیح می توان مصرف نهاده ها را کاهش و کارآیی انرژی را افزایش داد Manuscript profile -
Open Access Article
706 - The role of wisdom in the formation of an efficient political system in the Islamic Republic of Iran
mohammad hosein agharokh mirabadi Alireza Golshani sharif lakzaeeThis article tries to pay attention to the issue of the efficiency of the Islamic Republic of Iran and the challenges that may exist in this field. The main question of the article is "What is the relationship between this issue and Islamic wisdom in the system of the I MoreThis article tries to pay attention to the issue of the efficiency of the Islamic Republic of Iran and the challenges that may exist in this field. The main question of the article is "What is the relationship between this issue and Islamic wisdom in the system of the Islamic Republic of Iran?" In answer to the above question, the research hypothesis is that "wisdom will increase productivity (efficiency and effectiveness), achieve goals, improve efficiency and durability and consistency of government." The research method is library in terms of data collection and rational, narrative and experimental methods have been used in the position of analysis as needed. The results of the research indicate that wisdom in theory, based on science and thought, and in practice, based on ethics, spirituality, strategy and politics, and the system of the Islamic Republic of Iran to achieve its goals such as the good life of Islam , National unity, deter security and authority, and social justice must be the wisdom of the foundation; Therefore, the Iranian Islamic model of progress as a tool of system efficiency should be defined and regulated based on Islamic wisdom or the above four elements. Manuscript profile -
Open Access Article
707 - Investigation efficiency of nano photocatalytic compound of TiO2 and rice husk silica in removal of reactive red 198 dye from synthetic aqueous solutions
Abdollrahman Mahmoodi Seyed Mahmood Mehdinia Ayat Rahmani Hamidreza Nassehinia -
Open Access Article
708 - نوعی رویکرد برای رتبه DMU های کارا در تحلیل پوششی داده ها بر اساس ترکیبی از نورم بی نهایت و منهتن
شکرالله زیاری مناف شریف زادهدر بسیاری از برنامه های کاربردی، تبعیض در میان واحدهای تصمیم گیرنده (DMU) ها یک روش کار فنی مشکل ساز برای تصمیم گیرندگان در تحلیل پوششی داده ها (DEA) است. مدل های DEA قادر به تمایز قائل شدن میان DMU های به شدت کارآمد نمی باشد. از این رو، علاقه رو به رشد در بهبود قدرت تب Moreدر بسیاری از برنامه های کاربردی، تبعیض در میان واحدهای تصمیم گیرنده (DMU) ها یک روش کار فنی مشکل ساز برای تصمیم گیرندگان در تحلیل پوششی داده ها (DEA) است. مدل های DEA قادر به تمایز قائل شدن میان DMU های به شدت کارآمد نمی باشد. از این رو، علاقه رو به رشد در بهبود قدرت تبعیض در DEA هنوز وجود دارد. هدف از این مقاله رتبه بندی DMU های بسیار کارآ در تحلیل پوششی داده ها ها بر اساس بهره برداری از یک ایده و ترکیب منهتن و نورم بی نهایت با بازده به مقیاس ثابت و متغیر است. روش پیشنهادی در برخی از روش های رتبه بندی قادر به غلبه بر مشکلات موجود است. Manuscript profile -
Open Access Article
709 - روش رتبه بندی جایگزین در تحلیل پوششی داده های پویا (DDEA)
مهناز مقبولی امید یعقوبی اگره زهرا محمدزادهانگیزه این مقاله آن است که روش عادلانه ای برای رتبه بندی همه واحد های تصمیم گیری (DUMها) در چارچوب تحلیل پوششی داده های پویا (DDEA) پیشنهاد کند. تا آنجا که ما می دانیم مطالعات بیشتر در ادبیات DEA پویا وجود ندارد. در چنین مواردی آنچه که مهمتر است بهترین واحد عملیات Moreانگیزه این مقاله آن است که روش عادلانه ای برای رتبه بندی همه واحد های تصمیم گیری (DUMها) در چارچوب تحلیل پوششی داده های پویا (DDEA) پیشنهاد کند. تا آنجا که ما می دانیم مطالعات بیشتر در ادبیات DEA پویا وجود ندارد. در چنین مواردی آنچه که مهمتر است بهترین واحد عملیاتی است که به عنوان نمونه ای برای دیگران در مدت زمان ارزیابی معرفی می شود. با این حال، در این مفهوم خاص DEA ورودی های شبه ثابت یا فرآورده های میانی، منابع وابسته به زمان داخلی بین دوره های متوالی می باشند. از این رو، به منظور داشتن رتبه بندی مناسب برای واحدهای عملیاتی در محیط پویا حداقل و حداکثر ارزش راندمان از ارائه DUM هر وضعیت پویا محاسبه می شود. همچنین، فرض می کنیم که مجموع ارزش های بهره وری همه DMUها در حالت پویا برابر با واحد است. پس از آن، رتبه هر DUM از طریق ترکیب مقادیر حداکثر و حداقل بهرهوری آن تعیین می شود. یک مورد واقعی شرکت گاز ایران کاربرد روش پیشنهادی چارچوب پویا را برجسته می کند. Manuscript profile -
Open Access Article
710 - رویکرد DEA-TOPSIS برای تجزیه و تحلیل عملکرد مالی بانک های بخش دولتی هند
hari Tata vijaya nimmagaddaتوسعه سریع اینترنت و تجارت الکترونیکی، بخش بانکی را به سمت تشویق مشتریان به بانکداری اینترنتی (IB) را تحریک کرده است، با این حال، شواهد نشان دهنده عدم علاقه در استفاده از خدمات IB است. بنابراین، هدف این مقاله شناسایی عوامل موثر بر پذیرش مشتری ازطریق IB و سنجش تاثی Moreتوسعه سریع اینترنت و تجارت الکترونیکی، بخش بانکی را به سمت تشویق مشتریان به بانکداری اینترنتی (IB) را تحریک کرده است، با این حال، شواهد نشان دهنده عدم علاقه در استفاده از خدمات IB است. بنابراین، هدف این مقاله شناسایی عوامل موثر بر پذیرش مشتری ازطریق IB و سنجش تاثیر هر یک از عوامل در پذیرش IBاست. بر اساس یک بررسی آثار گذشته تحقیقاتی، تعدادی از عوامل به عنوان عوامل موثر در پذیرش مشتری از طریق IB در نظر گرفته شدند. سپس، این عوامل به یک نمونه از مشتریان IB در قالب یک پرسشنامه ارسال شدند. پس از جمع آوری پرسشنامه ها ی پر شده و بر اساس آزمون آماری، مهمترین عامل در میان آنها مورد تحقیق قرار گرفت. از این رو، بسیاری از این عوامل با یکدیگرمرتبط هستند؛ روش مبتنی نظریه گراف (DEMATEL) با ساختار بازخورد استفاده شده است تا اثرات مستقیم و غیر مستقیم عوامل موثر بر عوامل دیگر و کل سیستم را بررسی کند. نتایج نشان داد که: پاسخدهی (بررسی موثر مشکلات)، دسترسی به خدمات IB (نیازهای سخت افزاری)، سرعت شبکه، سهولت استفاده و بدون نیاز به حضور فیزیکی در شعبه بانک، به ترتیب، مهمترین عوامل بحرانی هستند. Manuscript profile -
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711 - رتبه بندی DMU ها کارآمد با استفاده از نرم بی نهایت و مجازی DMU ناکارا در DEA
شکراله زیاری مناف شریف زادهدر بسیاری از موارد کاربردی، رتبه بندی واحدهای تصمیم گیری (DMUها) یک روش کار فنی بسیار مشکل ساز برای تصمیم گیرندگان در تحلیل پوششی داده ها (DEA) محسوب می شود، بویژه زمانی که DMUهای بسیار کارآمد وجود دارد. در چنین مواردی بسیاری از مدل های DEA ممکن است نمره کارآیی مشابهی ر Moreدر بسیاری از موارد کاربردی، رتبه بندی واحدهای تصمیم گیری (DMUها) یک روش کار فنی بسیار مشکل ساز برای تصمیم گیرندگان در تحلیل پوششی داده ها (DEA) محسوب می شود، بویژه زمانی که DMUهای بسیار کارآمد وجود دارد. در چنین مواردی بسیاری از مدل های DEA ممکن است نمره کارآیی مشابهی را برای DMUهای مختلف دریافت کنند. از اینرو، توجه ها به تکنیک های رتبه بندی درحال افزایش است. هدف از این مقاله رتبه بندی DMUهای بسیار کارآمد در DEA براساس بهره برداری از روش leave-one out و به حداقل رساندن حداکثر فاصله بین DMU تحت ارزیابی و کارآیی مرزی در جهات ورودی و خروجی می باشد. روش پیشنهادی توانسته است تا بر فقدان عدم امکان پذیری و نامحدودی (بی کرانی) در برخی از روشهای رتبه بندی DEA غلبه کند. Manuscript profile -
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712 - مقایسـه کارایـی شـرکتهای انتقـال نیـرو در صنعـت برق ایـران با اسـتفاده از روشهای مرسـوم و تحلیل پوششـی دادههای شـبکه ای
کامبیز شاهرودی محمد رضا خسرویایـن مطالعـه یـک مطالعـه کاربردی اسـت که بـه منظور بررسـی و مقایسـه کارایی شـرکتهای برق منطقهای ایران با اسـتفاده از روشهای تحلیل پوششـی دادههای مرسـوم و شـبکیه انجام شـده اسـت. شـرکتهای بـرق منطقـهای ایـران از فرایند دو مرحلـهای بـرای انتقـال نیـرو اسـتفاده میکنند. با Moreایـن مطالعـه یـک مطالعـه کاربردی اسـت که بـه منظور بررسـی و مقایسـه کارایی شـرکتهای برق منطقهای ایران با اسـتفاده از روشهای تحلیل پوششـی دادههای مرسـوم و شـبکیه انجام شـده اسـت. شـرکتهای بـرق منطقـهای ایـران از فرایند دو مرحلـهای بـرای انتقـال نیـرو اسـتفاده میکنند. با اسـتفاده از رویکـرد کاربردی، عملکـرد و کارایـی ایـن شـرکتها بـا روشهـای شـبکهای و مرسـوم اندازهگیری شـد و با یکدیگر مقایسـه شـد. (BCC ورودی-محور). مشـخص شـد که مدلهای شـبکه در مقایسـه بـا روشهـای دیگـر از آنجـا کـه تصویـر واضـح از کارایـی شـرکتهای بـرق منطقـهای را فراهـم میکنـد ،گسـتردهتر هسـتند. نتایـج آزمـون ویلکاکسـون نشـان میدهـد کـه بیـن نمـرات کارآیی شـرکتهای بـرق منطقهای ایـران بـا اسـتفاده ازروش BCC و روشهای شـبکه تفـاوت معناداری وجـود دارد و بررسـی کیفیـت تفـاوت نمـرات نیـز نشـان میدهد کـه کارایـی شـرکتها در مدل شـبکه پایینتـر از نمـرات کارایـی مدل BCC اسـت. به طور کلی، مدلهای شـبکه دارای کاربـرد بالاتـری نسـبت بـه ارائـه یـک تصویر واضـح از کارایی شـرکتهای بـرق منطقـهای و مقایسـه دقیقتر آنها هسـتند. Manuscript profile -
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713 - انتخاب وزن ها برای یک رتبه بندی کامل واحدهای تصمیم گیرنده در تحلیل پوششی داده ها و ارزیابی متقاطع
پریچهر زمانیتحلیل پوششی داده های (DEA) مرسوم به تصمیم گیرندهها (DM) کمک میکند تا یک گروه همگن از واحدهای تصمیمگیرندهی (DMU) کارا و ناکارا را مشخص نمایند. به هرحال، تحلیل پوششی دادهها اطلاعات زیادی در مورد واحدهای تصمیمگیرنده کارا نمیدهد. یکی از موضوعات جالب تحقیق، تفاوت قایل Moreتحلیل پوششی داده های (DEA) مرسوم به تصمیم گیرندهها (DM) کمک میکند تا یک گروه همگن از واحدهای تصمیمگیرندهی (DMU) کارا و ناکارا را مشخص نمایند. به هرحال، تحلیل پوششی دادهها اطلاعات زیادی در مورد واحدهای تصمیمگیرنده کارا نمیدهد. یکی از موضوعات جالب تحقیق، تفاوت قایل شدن بین واحدهای تصمیمگیرنده کارا است. هدف این مقاله رتبه بندی همهی واحدهای تصمیم گیرنده کارا (رأسی و غیر رأسی) مبنی بر تعریف اندیس جدیدی است که از تعاریف اساسی مدل ها بدست آمده است. روش مطرح شده توانایی حذف کاستی های موجود در بعضی از روشهای رتبه بندی را دارد و به همین دلیل سهم جدیدی در مبحث رتبه بندی تحلیل پوششی داده ها را داراست. Manuscript profile -
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714 - ارزیابی علمکرد شعبات بانک با استفاده از روش dea و رگرسیون tobit: مورد مطالعاتی شعبات بانک کشاورزی استان گیلان
حمیدرضا علیپور غلامرضا محفوظی محسن شفیعیان شیوا رضاییاندر این مطالعه سعی کردیم تا با استفاده از روش تحلیل پوششی داده ها (DEA) به بررسی میزان کاراییهای فنی، فنی خالص و مقیاس در 12 شعبهی (شعبات سرپرستی) بانک کشاورزی در استان گیلان در دورة زمانی 2012 تا 2016 بپردازیم. نتایج اولیه حکایت از آن دارد که که در دورة موردمطالعه، س Moreدر این مطالعه سعی کردیم تا با استفاده از روش تحلیل پوششی داده ها (DEA) به بررسی میزان کاراییهای فنی، فنی خالص و مقیاس در 12 شعبهی (شعبات سرپرستی) بانک کشاورزی در استان گیلان در دورة زمانی 2012 تا 2016 بپردازیم. نتایج اولیه حکایت از آن دارد که که در دورة موردمطالعه، سهم عدمکارایی مقیاس در عدمکارایی فنی کل بیش از عدمکارایی فنی خالص بود. نتایج مربوط به بازدهی به مقیاس حاکی از آن است که بازدهی کاهشی نسبت به مقیاس مهمترین شکل عدمکارایی مقیاس است. در ادامه رگرسیون مقادیر کارایی فنی کل حاصل از روش DEA ، نسبت به چهار عامل مؤثر بر کارایی بانک (شامل اندازة بانک، سودآوری ، کفایت سرمایه و نقدینگی ) توسط روش Tobit تحلیل شد. چهار متغیر موردبررسی تأثیرات متفاوتی بر کارایی داشتند. اندازة شعب ارتباط غیرمعنیدار و منفی با کارایی فنی دارد و بنابراین، تأثیری بر کارایی ندارد. سودآوری مهمترین پارامتر در کارایی شعب بود و بعد از آن، نقدینگی شعب در مقام بعدی قرار داشت. سودآوری و نقدینگی شعب تأثیرات مثبت معنیدار بر کارایی دارند. به عبارت دیگر، شعبات بزرگتر و سودآورتر کارایی فنی بالاتری دارند Manuscript profile -
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715 - کاربرد تکنیک های ابر کارایی در اندازه گیری کارایی شعب بانک (مورد مطالعه:بانک ملی استان گیلان )
میترا صفری منصور صوفی مهدی همایونفردر دنیای رقابتی امروز، بسیاری از شرکتهای تولیدی و خدماتی از جمله بانک ها، ناگزیر شده اند به رویکردهای جدید مدیریتی و روش های ارزیابی عملکرد سازمانی رو بیاورند. از جمله این رویکردها، رویکرد تحلیل پوششی داده ها (DEA) است که از سال 1978 در ارزیابی عملکرد سازمانها مورد است Moreدر دنیای رقابتی امروز، بسیاری از شرکتهای تولیدی و خدماتی از جمله بانک ها، ناگزیر شده اند به رویکردهای جدید مدیریتی و روش های ارزیابی عملکرد سازمانی رو بیاورند. از جمله این رویکردها، رویکرد تحلیل پوششی داده ها (DEA) است که از سال 1978 در ارزیابی عملکرد سازمانها مورد استفاده قرار گرفته است. هدف این تحقیق، کاربرد تکنیک های ابر کارایی در اندازه گیری کارایی شعب بانک (مورد مطالعه:بانک ملی استان گیلان) می باشد. در این پژوهش از مدل ورودی محور تحلیل پوششی داده ها در فرم تحت بازده به مقیاس ثابت و مدی ابرکارایی اندرسون – پیرسون (AP) برای اندازه گیری کارایی شعب درجه 1،2و3 بانک ملی استان گیلان در سال 1394 پرداخته شده است به طور خلاصه نتایج نشان داد که میانگین امتیاز کارایی شعب مورد بررسی در سال 1394 ،0.75 می باشد، شعبه ی درجه یک گلسار رشت به عنوان کاراترین مورد بررسی و بندر کیاشهر به دلیل احتساب امتیاز کارایی 0.8 و پاییین تر از میانگین کل شعب به عنوان ناکاراترین شعبه معرفی شد. نتایج نشان داد که مهمترین عامل در ضعف مدیریت هزینهی شعب ناکارا مربوط به هزینه تبلیغات و بازاریابی و بیشترین ضعف در برنامه ریزی مربوط به حوزه ی آموزش کارکنان شعب ناکارا بوده است. Manuscript profile -
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716 - تأثیر مدیریت زنجیره تامین بر کارآیی صنعتی و عملکرد فنی
عطاا.. طالقانی محمد طالقانی محسن شفیعیان -
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717 - تخمین ورودیها و خروجیها در تحلیل پوششی داده های معکوس
سعید قبادیدر این مطالعه سوال زیر مد نظر قرار گرفته است: در میان یک دسته از واحد های تصمیم گیرنده، اگر تصمیم گیرنده ملزم به افزایش ورودیها و خروجیهای یک واحد خاص باشد بطوریکه سطح کارایی آن بخواهد حفظ یا بهبود یابد، چگونه ورودی و خروجی این واحد می بابیستی افزایش یابد؟این سوال به عن Moreدر این مطالعه سوال زیر مد نظر قرار گرفته است: در میان یک دسته از واحد های تصمیم گیرنده، اگر تصمیم گیرنده ملزم به افزایش ورودیها و خروجیهای یک واحد خاص باشد بطوریکه سطح کارایی آن بخواهد حفظ یا بهبود یابد، چگونه ورودی و خروجی این واحد می بابیستی افزایش یابد؟این سوال به عنوان یک مسئله در تحلیل پوششی داده های معکوس لحاظ شده و روشی برای حل آن معرفی شده است. شرایط لازم و کافی برای تخمین ورودیها و خروجیها بر اساس جوابهای پارتو(ضعیف) از مسائل برنامه ریزی خطی چند هدفی تبیین شده است. با در نظر گرفتن دادههای واقعی (برای انتخاب یک استراتژی مناسب برای گسترش گروه های آموزشی در دانشگاه ) یک کاربرد از تحلیل پوششی دادههای معکوس ارائه گردیده است. علاوه براین، دو مفهوم جدید بهینگی" نیمه پاراتو و نیمه پاراتو ضعیف" برای مسائل برنامه ریزی چند هدفی معرفی شده است. این مفاهیم برای پاسخ به سوال فوق استفاده شده است. Manuscript profile -
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718 - مدل ترکیبی شبکهی عصبی و تحلیل پوششی داده ها برای ارزیابی کارایی عملکرد واحدها
صادق حیدری احسان زنبوری حمید پروینکایی و ارزیابی یکی از اصلیترین و مهمترین نیاز های سازمانها، شرکتها و موسسات میباشد و این سازمان ها چون با حجم زیادی از داده سر و کار دارند. تحلیل پوششی دادهها روشی مناسب برای کارایی و ارزیابی عملکرد سازمانها میباشد. این تحقیق برای ارزیابی عملکرد و کارایی واحدهای Moreکایی و ارزیابی یکی از اصلیترین و مهمترین نیاز های سازمانها، شرکتها و موسسات میباشد و این سازمان ها چون با حجم زیادی از داده سر و کار دارند. تحلیل پوششی دادهها روشی مناسب برای کارایی و ارزیابی عملکرد سازمانها میباشد. این تحقیق برای ارزیابی عملکرد و کارایی واحدهای تصمیم گیرنده انجام گرفته است، ابتدا رویکردی با مدل BCC خروجی محور رتبهبندی واحدهای کارا در قالب مدلهای تحلیل پوششی دادهها مورد بررسی قرار گرفت و ضعف مدل، از نظر محاسبه و تفکیک کارایی مشخص گردید سپس برای از بین رفتن این مشکلات از روش ترکیبی تحلیل پوششی دادهها مدل BCC خروجی محور و شبکه عصبی مصنوعی به منظور ارزیابی کارایی این واحدها استفاده گردید تا بتوان این مشکل را بر طرف نمود. در پایان نیز مقایسهای بین نتایج حاصل از دو مدل انجام گرفته است. با توجه به مقدار کارایی بدست آمده با روش bcc خروجی محور، مشاهده می گردد تعدادی از واحدها مقدار کارایی آنها برابر با یک است که این باعث میگردد نتوانیم این واحدها رتبه بندی نماییم. اما با استفاده از روش پیشنهادی Neuro-DEA هیچ دو شعبه ای دارای مقدار کارایی برابر نبوده و با توجه به کارایی بدست آمده به راحتی می توان این واحد ها را ارزیابی و رتبه بندی نمود. Manuscript profile -
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719 - تخصیص مجدد نیروهای سازمان به کمک مدل سوپرکارا با وجود محدودیت روی تعداد و نحوه انتقال نیروهای بعضی از واحدها
مریم خطیبی بیژن رحمانی پرچیکلاییدر این مقاله کارایی عملکرد چند واحد مستقل سازمان نیروی انتظامی با هدف بهینهسازی کل ورودی مورد استفاده و کل خروجی تولید شده هر واحد مورد ارزیابی قرار گرفت. بدین منظور با در نظر گرفتن میزان کارایی و ناکارایی هر واحد و با توجه به موقعیت مکانی واحدها نسبت به هم و همچنین با Moreدر این مقاله کارایی عملکرد چند واحد مستقل سازمان نیروی انتظامی با هدف بهینهسازی کل ورودی مورد استفاده و کل خروجی تولید شده هر واحد مورد ارزیابی قرار گرفت. بدین منظور با در نظر گرفتن میزان کارایی و ناکارایی هر واحد و با توجه به موقعیت مکانی واحدها نسبت به هم و همچنین با توجه به وجود محدودیت روی تعداد و نحوه انتقال نیروهای بعضی از واحدها، با استفاده از مدل سوپرکارا مدلی در قالب تخصیص مجدد ورودیهای واحدهای سازمان، در جهت افزایش کارایی واحدهای ناکارا و با تاکید بر حفظ کارایی واحدهای کارا ارائه گردید. Manuscript profile -
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720 - انتخاب تامین کننده در زنجیره تامین پایدار: کاربرد فرایند تحلیل سلسله مراتبی و تحلیل پوششی داده های فازی
حمیدرضا رضایی محمد طالقانی محسن شفیعیان تارا نیک اندامتوسعه و مدیریت یک زنجیره تأمین موثر و کارآمد شامل انتخاب تامین کنندگان است. تنها معیارهای اقتصادی، از جمله هزینه و تحویل، در یک فرایند انتخاب تامین کننده مورد توجه قرار گرفت. اما، به دلیل شرایط به سرعت در حال تغییر، آنها برای ارزیابی تامین کنندگان کافی نیستند و مورد نیا Moreتوسعه و مدیریت یک زنجیره تأمین موثر و کارآمد شامل انتخاب تامین کنندگان است. تنها معیارهای اقتصادی، از جمله هزینه و تحویل، در یک فرایند انتخاب تامین کننده مورد توجه قرار گرفت. اما، به دلیل شرایط به سرعت در حال تغییر، آنها برای ارزیابی تامین کنندگان کافی نیستند و مورد نیاز است دیدگاه های مختلف در نظر گرفته شوند. هدف مقاله حاضر ارائه روش ترکیبی بر مبنای تجزیه و تحلیل پوششی داده های فازی برای انتخاب تامین کنندگان پایدار است. در ابتدا، معیارهای انتخاب تامین کنندگان پایدار از ادبیات مربوطه حاصل می شود. سپس سلسله مراتب معیارها و تعاملات ترجیحی آنها با فرآیند تحلیل سلسله مراتبی مشخص می شود. در نهایت، عملکرد تامین کنندگان با استفاده از تجزیه و تحلیل پوشش داده های فازی ارزیابی می شود. مدل DEA ارائه شده از مفهوم واحدهای تصمیم گیری ایده آل و غیر ایده آل (DMU) در ارزیابی کارایی متقاطع الهام گرفته شده است. با توجه به این مفهوم، DMU کارآمد است اگر آن نزدیک به عملکرد DMU ایده آل و به دور از عملکرد DMU ضد ایده آل است. Manuscript profile -
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721 - ادغام واحدهای تصمیم گیرنده بر پایه مفهوم تحلیل پوششی داد های معکوس
الهه زین الدین سعید قبادیدر این مقاله، ما یک روش جدید برای پاسخ سوال زیر بر اساس برنامه ریزی ریاضی چند هدفی ارائه می نماییم: اگر در میان یک مجموعه از واحد های تصمیم گیرنده زیر مجموعه ایی از آنها ملزم به ادغام و تشکیل یک واحد جدید با ورودی (خروجی) خاص و سطح کارایی از پیش مشخص شده ایی باشند آنگاه Moreدر این مقاله، ما یک روش جدید برای پاسخ سوال زیر بر اساس برنامه ریزی ریاضی چند هدفی ارائه می نماییم: اگر در میان یک مجموعه از واحد های تصمیم گیرنده زیر مجموعه ایی از آنها ملزم به ادغام و تشکیل یک واحد جدید با ورودی (خروجی) خاص و سطح کارایی از پیش مشخص شده ایی باشند آنگاه میزان خروجی ( ورودی) این واحد ادغامی به چه میزانی بایستی باشد. این سوال بر اساس مفهوم تحلیل پوششی داده های معکوس پاسخ داده شده است. شرایط کافی برای تخمین ورودی (خروجی) از واحد ادغامی بوسیله برنامه ریزی چند هدفی تاسیس شده است. یک مثال عددی با داده های واقعی برای گویایی اهداف این مقاله آورده شده است. Manuscript profile -
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722 - A New Eight-Order Iteretive Method for Solving Nonlinear Equations with High Efficiency index
Waziri Mohammed Yusuf Kabir Saminu -
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723 - ارزیابی کارایی ایستگاه های حمل و نقل ریلی با استفاده از رویکرد DEA
Davoud Haghighi رضا بابازادهنقش ایستگاه های حمل و نقل ریلی به عنوان نقاطی که در آن می توان فرآیندهای ترافیکی را با هم ادغام و از هم جدا کرد از اهمیت ویژه ای برخوردار است. فعالیتهای متعددی مانند تشکیل قطار ، کاهش و تعویض ، بررسیهای فنی نیز در این نقاط انجام می شود. با توجه به اهمیت بسیار زیاد استفا Moreنقش ایستگاه های حمل و نقل ریلی به عنوان نقاطی که در آن می توان فرآیندهای ترافیکی را با هم ادغام و از هم جدا کرد از اهمیت ویژه ای برخوردار است. فعالیتهای متعددی مانند تشکیل قطار ، کاهش و تعویض ، بررسیهای فنی نیز در این نقاط انجام می شود. با توجه به اهمیت بسیار زیاد استفاده بهینه از زیرساخت های راه آهن و تسهیلات موجودی انبار ، مطالعات کارآیی در این زمینه بیش از هر زمان دیگر یک وظیفه اصلی تلقی می شود. بنابراین ، ما یک روش مبتنی بر تجزیه و تحلیل پوشش داده ها را برای حل این مسئله پیاده سازی می کنیم. از روش پیشنهادی در این تحقیق می توان برای اندازه گیری کارایی ایستگاه های حمل و نقل ریلی و رتبه بندی آنها با استفاده از روش های DEA و Anderson & Peterson استفاده کرد. این روش می تواند برای تجزیه و تحلیل "کارایی فنی" ایستگاه های حمل و نقل ریلی برای مدیریت ایستگاه های قطار با توجه به ظرفیت ایستگاه فعلی استفاده شود. ما این مدل را در یک مطالعه موردی از 12 ایستگاه قطار پرتردد در راه آهن اصفهان برای اندازه گیری و رتبه بندی کارایی آنها و ارزیابی تأثیر نوع ترافیک بر نتایج با استفاده از رگرسیون قوی استفاده کردیم. Manuscript profile -
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724 - ارزیابی کارایی واحدهای تصمیم گیری در حضور فاکتورهای منفی و نامطلوب
مهناز مقبولی مهدی عینی فرهاد طاهرتحلیل پوششی داده ها (DEA) یک تکنیک برای ارزیابی واحدهای تصمیم گیری(DMUs) با چندین ورودی و خروجی است. اما یکی از نقصهای مدلهای کلاسیک DEAاین است که در همهی آنها فرض نامنفی و مطلوب بودن برای فاکتورها در نظر گرفته می شود، در حالی که در مسائل واقعی ورودیها و خروجیهای Moreتحلیل پوششی داده ها (DEA) یک تکنیک برای ارزیابی واحدهای تصمیم گیری(DMUs) با چندین ورودی و خروجی است. اما یکی از نقصهای مدلهای کلاسیک DEAاین است که در همهی آنها فرض نامنفی و مطلوب بودن برای فاکتورها در نظر گرفته می شود، در حالی که در مسائل واقعی ورودیها و خروجیهای منفی و نامطلوب نیز وجود دارد. لذا مدلهای استاندارد DEA، اندازه ی کارایی DMUs را به درستی منعکس نمی کنند. در این مقاله با ارائه مدلی کارایی واحدها در حضور فاکتورهای منفی و نامطلوب مورد ارزیابی قرار می گیرد که با یک مثال کاربردی روش پیشنهادی مورد بحث و بررسی قرار میگیرد. Manuscript profile -
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725 - رتبهبندی واحدهای تصمیمگیری با ساختار شبکه دو مرحلهای چند دورهای: روشی مبتنی بر تحلیل پوششی دادههای نسبتی
مقصود احمد خانلو قراخانلو نیما آذرمیر شتربانی قاسم توحیدی شبنم رضویان روح اله عباسیتحلیل پوششی داده ها به عنوان یک روش غیرپارامتریک برای اندازه گیری کارایی مجموعه ای از واحدهای تصمیم گیری همواره مورد توجه می باشد . عدد کارایی حاصل از مدل های استاندارد ، معیاری برای مقایسه عملکرد هر واحد تصمیم گیری با بقیه واحدها می باشد. علی رغم نقاط قوت فراوان این مد Moreتحلیل پوششی داده ها به عنوان یک روش غیرپارامتریک برای اندازه گیری کارایی مجموعه ای از واحدهای تصمیم گیری همواره مورد توجه می باشد . عدد کارایی حاصل از مدل های استاندارد ، معیاری برای مقایسه عملکرد هر واحد تصمیم گیری با بقیه واحدها می باشد. علی رغم نقاط قوت فراوان این مدل ها، از نقاط ضعف آنها می توان به عدم تمایز بین واحدهای کارا اشاره کرد. همچنین، این مدل ها به ساختار داخلی واحدها توجه نمی کنند و دیدگاه جعبه سیاه دارند. در جهت رفع این مشکلات، مدل های تحلیل پوششی داده های نسبتی که هم از لحاظ زمان و هزینه بسیار مقرون به صرفه تر است مورد استفاده قرار می گیرند؛ اما این مدلها ایستا هستند و زمان را در ارزیابی لحاظ نمی کنند. دراین مقاله، روشی برای رتبهبندی واحدهای تصمیمگیری با ساختار شبکه دو مرحلهای چند زمانی با استفاده از تحلیل پوششی دادههای نسبتی پیشنهاد میشود. با استفاده از مدلهای تحلیل پوششی دادههای نسبتی، سه دیدگاه متفاوت برای ارزیابی کارایی در دورههای زمانی معرفی میشود و متناظر با هر دیدگاه، یک عدد کارایی برای هر واحد تصمیمگیری به دست میآید. سپس، سه مقدار کارایی منتج از سه روش مذکور، با استفاده از روش آنتروپی شانون با یکدیگر ترکیب شده و یک معیار کارایی کلی برای هر واحد تعریف میشود. این معیار در نهایت به عنوان شاخص اصلی برای رتبهبندی واحدها درنظر گرفته میشود. نتایج اجرای الگوریتم پیشنهادی بر روی مثال واقعی و مقایسه آن با نتایج روشهای مشابه، قوتاین الگوریتم را آشکار میسازد. Manuscript profile -
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726 - پیادهسازی DEA فازی درون مدل PEM جهت ارزیابی عملکرد سازمانهای پروژهمحور: یک مطالعۀ موردی
اویس ترابی محمّدمیلاد احمدی روحالله تولاییسازمان های پروژه محور در صنایع بالادستی سهم زیادی از منابع ملی را در اختیار دارند و نقش مهمی در توسعه یک کشور ایفا می کنند. ارزیابی عملکرد سازمان های پروژه محور می تواند به مدیران کمک کند تا از ورودی ها به طور موثر استفاده کنند و راه خود را برای دستیابی به اهداف هموار ک Moreسازمان های پروژه محور در صنایع بالادستی سهم زیادی از منابع ملی را در اختیار دارند و نقش مهمی در توسعه یک کشور ایفا می کنند. ارزیابی عملکرد سازمان های پروژه محور می تواند به مدیران کمک کند تا از ورودی ها به طور موثر استفاده کنند و راه خود را برای دستیابی به اهداف هموار کنند. برای ارزیابی عملکرد سازمان های پروژه محور، شاخص های کمی و کیفی زیادی وجود دارد. محاسبه کارایی از طریق تحلیل پوششی داده ها (DEA) یک شاخص رایج برای ارزیابی عملکرد در چنین شرکت هایی است. در مدل سنتی DEA دادههای واضح مورد نیاز است در حالی که در دنیای واقعی، بیشتر دادهها نادقیق و نامطمئن هستند. یکی از دلایل اصلی عدم قطعیت مربوط به اطلاعات غیر کمی، ناقص و دست نیافتنی است که باعث ادغام منطق فازی و مجموعه های فازی در مدل های مختلف مانند DEA می شود.ایدۀ اصلی پژوهش حاضر ترکیب رویکردهای کمی و کیفی در ارزیابی عملکرد برای بهرهگیری از هر دو و دستیابی به نتایج دقیقتر است. از این رو، در این مقاله، یک مدل ترکیبی مبتنی بر تحلیل پوششی داده های فازی (FDEA) و مدل تعالی پروژه (PEM) برای ارزیابی عملکرد در سازمان های پروژه محور پیشنهاد شده است. ابتدا ارزیابی عملکرد توسط مدل PEM داده های فازی انجام می شود. سپس پیاده سازی فازی DEA در مدل PEM انجام می شود که در آن ورودی ها و خروجی های مدل FDEA معیارهای مدل PEM هستند. مدل هیبریدی پیشنهادی برای ارزیابی 30 شرکت پتروشیمی در ایران استفاده شده است. مقایسه نتایج هر دو مدل نشاندهنده ضریب همبستگی تقریباً 90/0 در سطح معنیداری 01/0 است که نشاندهنده همبستگی مناسب بین دو مدل است. Manuscript profile -
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727 - تخصیص مرکزی منابع با امکان کاهش فعالیت ها برای ارزیابی سیستم های تولید دومرحله ای با ورودی های اشتراکی
Amir Yadollahi رضا کاظمی متین Farhad Hosseinzadeh LotfiThis paper proposes a centralized network data envelopment analysis model that combines the centralized data envelopment analysis model with possibility of downsizing and two-stage network data envelopment analysis. In the proposed model, this paper also considers the s MoreThis paper proposes a centralized network data envelopment analysis model that combines the centralized data envelopment analysis model with possibility of downsizing and two-stage network data envelopment analysis. In the proposed model, this paper also considers the situation in which shared inputs are jointly consumed in each stage. We also assume some outputs can be produced by the first and second stages by using separate inputs. The proposed model is illustrated in an empirical example of twenty sale representatives in two provinces of Golestan and Mazandaran. The results provide valuable information for the centralized decision-maker on how to reallocate resources among the units. Manuscript profile -
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728 - عوامل تاثیرگزار بر انحرافات کارایی در مدلهای تحلیل پوششی دادهای مبتنی بر وزن مشترک
سعید شاه قبادیروشهای مختلفی برای تولید مجموعه ای مشترک از وزنها در تحلیل پوششی داده ها بر اساس اندازه گیری فاصله نرم P وجود دارد. انحراف نمره کارایی حاصل از اوزان مشترک، از نمره کارایی هدف ممکن است مربوط به مدل و پارامتر p باشد. در این مطالعه ، در صورت ایجاد نمره کارایی با کمترین انح Moreروشهای مختلفی برای تولید مجموعه ای مشترک از وزنها در تحلیل پوششی داده ها بر اساس اندازه گیری فاصله نرم P وجود دارد. انحراف نمره کارایی حاصل از اوزان مشترک، از نمره کارایی هدف ممکن است مربوط به مدل و پارامتر p باشد. در این مطالعه ، در صورت ایجاد نمره کارایی با کمترین انحراف توسط وزن مشترک ، سعی می شودفاکتور های تاثیرگزار در مورد انتخاب p ، مدل و مجموعه داده ها تععین شود.همچنین با تجزیه و تحلیل نتیجه مدل های موجود ، دو مدل خطی بهبود یافته معرفی شده است.نتایج مدلهای پیشنهادی دارای انحرافات کارایی فردی و کلی کمتری نسبت به مدلهای قبلی است که این نتایج با مثالهای عددی و تجزیه و تحلیل شبیه سازی تأیید شده است. Manuscript profile -
Open Access Article
729 - مدل های DEA بدون ورودی یا خروجی صریح: شعاعی و غیر شعاعی
Zohreh Moghaddasبسیاری از برنامه ها و مطالعات نگرانی ها در مورد مطالعه مدل DEA بدون ورودی یا خروجی صریح برای ارزیابی عملکرد واحد های تصمیم گیری (DMUs) است. بر اساس آنچه در ادبیات DEA در این مقاله ارائه شده است، ادعا شده است که در رویکرد ذکر شده، فرض تخمین زده شده به درستی مطرح نشده است Moreبسیاری از برنامه ها و مطالعات نگرانی ها در مورد مطالعه مدل DEA بدون ورودی یا خروجی صریح برای ارزیابی عملکرد واحد های تصمیم گیری (DMUs) است. بر اساس آنچه در ادبیات DEA در این مقاله ارائه شده است، ادعا شده است که در رویکرد ذکر شده، فرض تخمین زده شده به درستی مطرح نشده است. بنابراین یک رویکرد مدرن ارائه شده است و برای وضوح، کاربرد مدل های DEA بدون ورودی و خروجی ارائه شده است. Manuscript profile -
Open Access Article
730 - ارزیابی کارایی مدل جمعی کراندار در سیستم های تولید دومرحله ای با داده های منفی
حمیدرضا بابائی اصیل رضا کاظمی متین محسن خون سیاوش زهره مقدستحلیل پوششی داده ها (DEA) روشی برای اندازگیری کارایی واحدهای تصمیم گیری (DMU) ها است. در مدلهای تحلیل پوششی داده های سنتی به اختلافات احتمالی بین دو مرحله ناشی از اقدامات میانی اشاره نمی کنند. به همین جهتاین مدل ها برای بررسی کارایی فرآیندهای دو مرحله ای که همه خروجی ه Moreتحلیل پوششی داده ها (DEA) روشی برای اندازگیری کارایی واحدهای تصمیم گیری (DMU) ها است. در مدلهای تحلیل پوششی داده های سنتی به اختلافات احتمالی بین دو مرحله ناشی از اقدامات میانی اشاره نمی کنند. به همین جهتاین مدل ها برای بررسی کارایی فرآیندهای دو مرحله ای که همه خروجی های مرحله اول اقدامات میانی هستند که ورودی های مرحله دوم را تشکیل می دهند، گسترش یافته است. در دنیای واقعی داده های مربوط به سیستم های تولید دومرحله ای میتوانند مقادیر منفی نیز داشته باشند. با توجه به اهمیت ارزیابی واحدهای تصمیم گیرنده ی دو مرحله ای، در این مقاله ارزیابی این سیستم های تولید با فرض وجود داده های منفی مورد توجه قرار گرفته اند. همچنین در این مقاله رویکرد جدیدی از ارزیابی کارایی توسط مدل جمعی کراندار دومرحله ای با استفاده از داده های منفی ارائه شده است. درادامه با استفاده از مثال عددی وکاربردی به ارزیابی کارایی و رتبه بندی 36 شرکت هواپیمایی پرداخته می شود. Manuscript profile -
Open Access Article
731 - تحلیل کارایی زیست محیطی کشورها با رهیافت تحلیل پوششی داده ها
مینا مشفق محسن رستمی مال خلیفهدر سالهای اخیر توجه عمومی به مسائل زیست محیطی به نحو چشمگیری افزایش یافته است. با توجه به افزایش نگرانیها در رابطه با کیفیت محیط زیست، تغییرات آب و هوایی و انتشار آلایندههای زیست محیطی که به عنوان عناصر مهم توسعه پایدار مطرح میباشند، یکی از مسائل مهم، اندازهگیری کا Moreدر سالهای اخیر توجه عمومی به مسائل زیست محیطی به نحو چشمگیری افزایش یافته است. با توجه به افزایش نگرانیها در رابطه با کیفیت محیط زیست، تغییرات آب و هوایی و انتشار آلایندههای زیست محیطی که به عنوان عناصر مهم توسعه پایدار مطرح میباشند، یکی از مسائل مهم، اندازهگیری کارآیی زیست محیطی است. هدف اصلی این پژوهش بررسی کارایی زیست محیطی کشورها با رهیافت تحلیل پوششی دادهها (DEA)با در نظر گرفتن خروجیها، به صورت فاکتورهای مطلوب و نامطلوب اثرگذار در تغییرات زیست محیطی( ۷ ورودی و ۷ خروجی) سال 1399 در 176 کشور استفاده شده است. واحدها با استفاده از مدل های CCR و AP به منظور رتبه بندی هر دو گروه واحد های کارامد و ناکارامد ارزیابی شدند. نتایج نشان میدهند کارایی زیست محیطی کشورهای منتخب به طور متوسط 80.60 درصد میباشد، که از بین کشورهای تحت بررسی، کشور ایران با کسب کارایی 0.58 دارای رتبه 140 بوده و کشورهای ایسلند، سنگاپور و لسوتو به ترتیب دارای بیشترین کارایی زیست محیطی و همچنین کشورهای سیرا لئون، فیلیپین و پاکستان به ترتیب دارای کمترین کارایی زیست محیطی هستند. Manuscript profile -
Open Access Article
732 - تحلیل کارایی زیست محیطی و نسبتهای حاشیهای با حضور عوامل نامطلوب : رویکردی مبتنی بر تحلیل پوششی دادهها
منصور صوفی فاطمه بزرگی گردویشه مهدی همایون فر علیرضا امیرتیموریهمواره تعادل بین مقررات زیست محیطی و مباحث اقتصادی به یکی از مسائل اصلی هر جامعه ای تبدیل شده است. زیرا باافزایش صنعتی شدن کشورها،آلایندگی های زیست محیطی نیز افزایش یافته است. زیرا همراه در فرایند تولید علاوه بر خروجیهای مطلوب، خروجیهای نامطلوب نیز تولید میشوند و تاث Moreهمواره تعادل بین مقررات زیست محیطی و مباحث اقتصادی به یکی از مسائل اصلی هر جامعه ای تبدیل شده است. زیرا باافزایش صنعتی شدن کشورها،آلایندگی های زیست محیطی نیز افزایش یافته است. زیرا همراه در فرایند تولید علاوه بر خروجیهای مطلوب، خروجیهای نامطلوب نیز تولید میشوند و تاثیر زیادی برکارایی سازمان ها و آلودگی زیست محیطی دارند از سوی دیگر با بررسی میزان تأثیر این خروجیها بر ورودیها و خروجیهای مطلوب میتوان به اطلاعات مهمی برای تعیین استراتژیها و رهنمودهایی جهت تصمیمگیری دستیافت. هدف این پژوهش محاسبۀکارایی و نسبتهای حاشیهای سیستم های زیست محیطی با درنظرگرفتن عوامل نامطلوب میباشد. پژوهش حاضر در دو فاز انجامگرفته است. در فاز اول مناطق با استفاده از مدل توسعهیافتة تحلیل پوششی دادهها به دو گروه کارا و ناکارا طبقهبندی شدند. سپس در مرحلة دوم، نسبتهای حاشیهای خروجیهای نامطلوب بر ورودیها و خروجیهای مطلوب در مناطق کارا محاسبه گردید. نتایج نشان داد که تغییر در میزان خروجیهای نامطلوب تأثیر قابلتوجهی بر دیگر متغیرها دارد. Manuscript profile -
Open Access Article
733 - کارایی زیست محیطی با روش دو مرحله ای ; روش تابع فاصله ای جهت دار
منیره ذریه حبیب مهناز مقبولی -
Open Access Article
734 - اندازه های کارایی متقاظع نامغلوب در تحلیل پوششی داده ها با رویکرد اهداف ثانویه
سعید شاه قبادی عباس قماشی فرهاد مرادیتحلیل پوششی داده ها (DEA) یک روش برنامه ریزی ناپارامتریک برای ارزیابی کارایی نسبی مجموعه ای از واحدهای تصمیم گیری متجانس (DMUs) با ورودی های متعدد و خروجی های متعدد است. روش کارایی متقاطع DEA روشی شناخته شده است که برای ارزیابی و رتبه بندی مجموعه ای از واحدهای تصمیم گیر Moreتحلیل پوششی داده ها (DEA) یک روش برنامه ریزی ناپارامتریک برای ارزیابی کارایی نسبی مجموعه ای از واحدهای تصمیم گیری متجانس (DMUs) با ورودی های متعدد و خروجی های متعدد است. روش کارایی متقاطع DEA روشی شناخته شده است که برای ارزیابی و رتبه بندی مجموعه ای از واحدهای تصمیم گیری متجانس استفاده می شود. هر زمان که یک DMU قصد ارزیابی سایر DMU ها را داشته باشد، با مشکل وزن های بهینه غیر یکتای مدل های DEA مواجه می شود. زیرا وزنهای مختلف امتیازات متقاطع متفاوتی را به ما میدهند و این باعث سردرگمی تصمیمگیرنده در تصمیمگیری نهایی میشود. اشکال اصلی این روش، مجموعه راه حل بهینه چندگانه است. هدف اصلی این مطالعه پیشنهاد رویکردی برای حل این مشکل برای ایجاد امتیازهای کارایی متقاطع DEA غیر غالب است. ما یک مدل هدف ثانویه برنامه ریزی خطی را برای انتخاب مجموعه ای از وزن های بهینه برای هر DMU پیشنهاد می کنیم. روش پیشنهادی ما نه تنها ساده تر از روش های دیگر ارائه شده با همین هدف است، بلکه کارایی بیشتری دارد. مثال های عددی برای نشان دادن این موضوع در پایان آورده شده است. Manuscript profile -
Open Access Article
735 - Analysis and evaluation of the legislation performance of different periods of the Islamic Parliament based on Data Envelopment Analysis
Alireza Amirteimoori K. Shahroudi Mehrdad Goodarzvand Chegini Ahmad Ghanbarian BoroojeniLegislation constitutes one of the most critical responsibilities of the Islamic Parliament. Given its pivotal role in addressing the country's political, economic, and social issues, evaluating this institution and identifying factors that influence its performance tak MoreLegislation constitutes one of the most critical responsibilities of the Islamic Parliament. Given its pivotal role in addressing the country's political, economic, and social issues, evaluating this institution and identifying factors that influence its performance takes on particular significance. This necessitates the development of a suitable model for assessing its performance. Therefore, the primary aim of this research is to provide an efficiency measurement model for evaluating the legislative performance of the Islamic Parliament. To achieve this goal, considering that the Islamic Parliament primarily operates as a service-oriented institution where the consumption of inputs is not of utmost importance, we have utilized the technique of Data Envelopment Analysis (DEA) without explicit input data. Additionally, in consideration of the existence of undesirable outputs, we have applied the assumption of managerial disposability. Based on these considerations, we have determined and compared the legislative performance of the Islamic Parliament over eight periods (from the third to the tenth period) using models assuming efficiency on both constant and variable scales. Manuscript profile -
Open Access Article
736 - ارزیابی کارایی ارزشی هر واحد نسبت به ابرصفحه ی مماس در تحلیل پوششی داده ها (واحدهای شامل داده های منفی با مقیاس فاصله ای)
حسین عباسیان سید علی کاظمی پوردر تحلیل پوششی داده ها، کارایی ارزشی یک مفهوم کارایی است که برای محاسبه ی آن، از اولویت های تصمیم گیرنده استفاده می کند. در این مقاله، داده های با مقیاس فاصله ای به صورت تفاضل دو داده مختلف از ورودیها و خروجیها با مقیاس نسبتی می باشند و یکی از نوآوریهای این پژوهش این اس Moreدر تحلیل پوششی داده ها، کارایی ارزشی یک مفهوم کارایی است که برای محاسبه ی آن، از اولویت های تصمیم گیرنده استفاده می کند. در این مقاله، داده های با مقیاس فاصله ای به صورت تفاضل دو داده مختلف از ورودیها و خروجیها با مقیاس نسبتی می باشند و یکی از نوآوریهای این پژوهش این است که کارایی ارزشی واحدهایی که شامل داده هایی منفی با مقیاس فاصله ای هستند را محاسبه می کنیم. در کارایی ارزشی واقعی، از منحنی بی تفاوتی تابع ارزشی استفاده می شود که این تابع نامعلوم است و نوآوری دیگر این پژوهش در این است که این منحنی را با ابرصفحه ی مماس در نقطه ای با بیشترین ترجیحات تقریب می زنیم و با پیشنهاد تصمیم گیرنده، یکی از واحدهای کارای تکنیکی را به عنوان نقطه ای با بیشترین ترجیحات در نظر می گیریم. برای یافتن این ابرصفحه مماس، از مساله ی ثانویه ی مدل های شعاعی استفاده می کنیم که دارای بازده به مقیاس متغیر هستند. در نهایت، فاصله ی هر واحد تصمیم گیرنده تا ابرصفحه ی مماس، مقدار کارایی ارزشی آن واحد را نشان می دهد. در مثال عددی ارائه شده، نتایج به دست آمده بسیار نزدیک نتایج مدل های هالم و همکارانش می باشد و این روش می تواند تقریب مناسبی برای کارایی ارزشی ارائه دهد. Manuscript profile -
Open Access Article
737 - کارایی بنگاههای اقتصادی در حضور فاکتورهای نامطلوب و منفی با دادههای بازهای
MAHNAZ MAGHBOULI مهدی عینی فرهاد طاهر FATEMEH GHOMANJANIتحلیل پوششی داده‎ها روشی برای سنجش عملکرد گروهی از واحدهای تصمیمگیری است، که ورودیهای همگن متعدد را برای تولید خروجیهای متعدد همگن استفاده میکنند. تاکنون مدلهای فراوانی از تحلیل پوششی دادهها با دادههای بازهای و ورودی و خروجی خاص ارائه شده است. ورودی و خروج Moreتحلیل پوششی داده‎ها روشی برای سنجش عملکرد گروهی از واحدهای تصمیمگیری است، که ورودیهای همگن متعدد را برای تولید خروجیهای متعدد همگن استفاده میکنند. تاکنون مدلهای فراوانی از تحلیل پوششی دادهها با دادههای بازهای و ورودی و خروجی خاص ارائه شده است. ورودی و خروجیهای هر واحد تصمیم گیری در مدلهای تحلیل پوششی دادهها از اهمیت ویژهای برخوردار است. در تحلیل پوششی دادهها فرض اصلی بر مثبت بودن دادهها میباشد، این در حالی است که در دنیای واقعی و در فرآیند تولید، ممکن است دادههای منفی و حتی نامطلوب وجود داشته باشد. وجود این نوع از دادهها با تعاریف کلاسیک تحلیل پوششی دادهها سازگاری ندارد. با توجه به اهمیت توجه به این نوع از دادهها در این مقاله با ارائه مدلی جدید کارایی واحدهای تصمیم گیری که همزمان دارای ورودی و خروجی منفی، مطلوب و نامطلوب است به صورت دادههای بازهای پیشنهاد شده است. هدف از این تحقیق ارائه مدل جدید و ارزیابی عملکرد واحدهای تصمیم گیری با دادههای مذکور است. برای توضیح بیشتر، به عنوان مثال کاربردی از دادههای بانک خصوصی کشور ایران استفاده شده است Manuscript profile -
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738 - Using lexicographic parametric programming for identifying efficient hyperpalnes in DEA
فرهاد حسین زاده لطفی ف. رضایی بالف A. تقوی -
Open Access Article
739 - The interval Malmquist productivity index in DEA
ف. رضایی بالف ف. حسین زاده لطفی م. علیزاده افروزی -
Open Access Article
740 - Portfolio Selection using Data Envelopment Analysis with common weights
A. علینژاد M. Zohrebandian ف. دهدار -
Open Access Article
741 - The cost and income efficiency models with MOLP structure
G.R. جهانشاه لو م.ر مظفری Z. سبحان -
Open Access Article
742 - Performance Evaluation of Banks Using DEA (Case study: Guilan Saderat Bank Branches)
ک. شاهرودی Sh. Assimi -
Open Access Article
743 - Improving supply chain collaborations and performance of inefficient supply chain
م. صانعی S. Mamizadeh-Chatghayeh -
Open Access Article
744 - A statistical test for outlier identification in data envelopment analysis
Morteza Khodabin Reza Kazemi Matin -
Open Access Article
745 - Obtaining a Unique Solution for the Cross Efficiency by Using the Lexicographic method
گ.ر. جهانشاه لو ر. فلاح نژاد -
Open Access Article
746 - Optimization of Energy Consumption in Milk Production Units through Integration of Data Envelopment Analysis Approach and Sensitivity Analysis
ح. سلطانعلی ب. عمادی ع. روحانی م. خجستهپور ا. نیکخواه -
Open Access Article
747 - تأثیر سن شیرگیری بر عملکرد و اقتصاد گوسالههای هلشتاین پرورش یافته در روش کشاورزی سبز
M. Sharifi A.A. Khadem B.J. Heins R. Pahlavan M. Safdariهدف از این مطالعه بررسی اثرات سن شیرگیری بر مصرف ماده خشک، متوسط وزن روزانه، بازده خوراک، هزینه خوراک و شاخص سود گوساله هلشتاین پرورش یافته در روشهای سبز بود. 32 گوساله هلشتاین در دو روش پرورش یافتند که شامل: زود از شیرگرفته شده و شیرگیری با تأخیر. گوسالههای هر دو گ Moreهدف از این مطالعه بررسی اثرات سن شیرگیری بر مصرف ماده خشک، متوسط وزن روزانه، بازده خوراک، هزینه خوراک و شاخص سود گوساله هلشتاین پرورش یافته در روشهای سبز بود. 32 گوساله هلشتاین در دو روش پرورش یافتند که شامل: زود از شیرگرفته شده و شیرگیری با تأخیر. گوسالههای هر دو گروه با شیر کامل و با نرخ 10 درصد وزن بدن تیمار شدند. گوسالهها از بدو تولد تا پایان آزمایش دسترسی آزاد به برگ یونجه خشک داشتند. همچنین، گروه زود از شیرگرفته شده با رژیم غذایی استارتر بعد از شیر گرفتن تا سن 90 روزگی نگهداری شدند. مصرف ماده خشک روزانه و وزن بدن در فواصل 15 روز اندازهگیری شد و بازده خوراک و هزینه خوراک برای دورههای موجود محاسبه گردید. مصرف ماده خشک روزانه گوسالههای شیرگیری با تأخیر و زود از شیرگرفته شده به طور قابل توجهی از دوره سوم تا پایان آزمایش متفاوت بود. علاوه بر این، متوسط وزن روزانه زود از شیرگرفته شده بالاتر از شیرگیری با تأخیر در تمام دورهها بود. به جز دوره اول و دوم، بازده خوراک بین دیگر دورهها متفاوت بود. همچنین، به دلیل افزایش هزینه خوراک برای گوسالههای پرورش یافته در شیرگیری با تأخیر نسبت به گروه از شیرگرفته شده، شاخص سود در گروه زود از شیرگرفته شده بالاتر بود. Manuscript profile -
Open Access Article
748 - Effects of Dietary Protein and Energy Levels on Productive and Reproductive Performance of Lactating Buffaloes
H.M.A. Gaafar E.M. Abdel-Raouf M.M. Bendary G.H.A. Ghanem K.F.A. El-Riedy -
Open Access Article
749 - Productive Performance of Lactating Buffaloes Fed RationContaining Sugar Beet Tops and Corn Silages
H.M.A. Gaafar E.M. Abdel-Raouf M.M. Bendary G.H. Ghanem K.F. El-Reidy -
Open Access Article
750 - Relationship of Mitochondrial Biogenesis and Phenotypic Expression of Residual Feed Intake in Fat-Tailed Lambs
H. Rajaei-Sharifabadi A.A. Naserian M.R. Nassiry W. Bottje -
Open Access Article
751 - مطالعه عوامل فنوتیپی و ژنتیکی مؤثر بر بازدهی تولید مثلدر طول عمر میشهای لری بختیاری
م. وطن خواهعوامل فنوتیپی و ژنتیکی مؤثر بر بازدهی تولید مثل در خلال طول عمر یک میش با استفاده از 8202 رکورد صفات تولید مثلی در طول عمر 2478 رأس میش جمعآوری شده طی سالهای 1989 تا 2012 مربوط به گله تحقیقاتی ایستگاه گوسفند لری بختیاری (شولی) واقع در جنوب غربی ایران (شهرکرد) برآورد Moreعوامل فنوتیپی و ژنتیکی مؤثر بر بازدهی تولید مثل در خلال طول عمر یک میش با استفاده از 8202 رکورد صفات تولید مثلی در طول عمر 2478 رأس میش جمعآوری شده طی سالهای 1989 تا 2012 مربوط به گله تحقیقاتی ایستگاه گوسفند لری بختیاری (شولی) واقع در جنوب غربی ایران (شهرکرد) برآورد گردید. بازدهی تولیدمثلی در خلال فرصتهای برهزایی، از حاصل جمع همه زایشها به ازای هر رأس میش در معرض آمیزش محاسبه شد. بازدهی تولید مثل شامل تعداد شکم زایش (NP)، تعداد کل برههای متولد شده (TNLB)، تعداد کل برههای شیرگیری شده (TNLW)، کل وزن تولد برهها (TLBW)، کل وزن شیرگیری برهها (TLWW)، کل وزن شیرگیری به ازای هر کیلوگرم وزن بدن میش (TLWW/EBW) و کل وزن شیرگیری به ازای هر کیلوگرم وزن متابولیکی میش (TLWW/MEBW) بودند. دادهها به وسیله مدل حیوانی چندصفتی شامل اثر عوامل ثابت سال تولد میش، تعداد زایمان در طول عمر میش، متغییر کمکی وزن بدن میش، و اثر عوامل تصادفی ژنتیکی افزایشی حیوان و باقیمانده تجزیه شدند. میانگین کل صفات مرتبط با بازدهی تولیدمثلی به ترتیب معادل 31/3، 31/3، 21/3، 51/16 کیلوگرم، 31/87 کیلوگرم، 51/1 و 16/4 بودند. انحراف استاندارد همه صفات مورد بررسی به خصوص برای صفت TLWW بالا بودند. اثر عوامل غیر ژنتیکی بر روی همه صفات مورد بررسی معنیدار بودند (01/0P<). برآوردهای وراثتپذیری متوسط (30/0) برای NP و پایین (08/0 تا 11/0) برای سایر صفات بودند. همبستگیهای ژنتیکی و فنوتیپی بین صفات بازدهی تولیدمثلی در طول عمر میش به ترتیب بالا (72/0 تا 99/0) و متوسط تا بالا ( 57/0 تا 99/0) برآورد شدند. بنابراین، بهبود عوامل محیطی در ابتدا میتواند بهبودی قابل ملاحظهای در همه صفات مرتبط با بازدهی تولیدمثلی ایجاد نماید. برآورد وراثتپذیری پایین تا متوسط و همبستگیهای ژنتیکی گرفته شده بین صفات تولیدمثلی در طول عمر میش و انحراف استاندارد فنوتیپی بالای آنها، نشان دهنده امکان بهبودی به وسیله انتخاب برای همه صفات میباشد، به خصوص انتخاب برای NP میتواند کل وزن شیرگیری به عنوان بازده خالص تولیدمثلی در میشهای لری بختیاری را افزایش دهد. Manuscript profile -
Open Access Article
752 - Economic Efficiency of Smallholder in Iran: Adjusted for Market Distortion
M. Bakhshoodeh N. Shahnushi -
Open Access Article
753 - Investigation of Energy Efficiency of Broiler Farms in Different Capacity Management Systems
S. Najafi N. Khademolhosseini O. Ahmadauli -
Open Access Article
754 - ارزیابی ژنتیکی صفات مرتبط با نرخ و کارایی رشد در بز کرکی رائینی
م.س. مختاری م. رزمکبیر ح. قیاسی ی. محمدیصفات مرتبط با کارایی رشد برای بهبود ژنتیکی نشخوارکنندگان کوچک به ویژه در مناطق گرمسیری با مراتع فقیر از لحاظ کمّی و کیفی، اهمیت اقتصادی دارند. از دادههای جمع­آوری شده طی سالهای 1376 تا 1392 در ایستگاه اصلاح نژاد بز کرکی رائینی، واقع در استان کرمان، جنوب شرقی ایران Moreصفات مرتبط با کارایی رشد برای بهبود ژنتیکی نشخوارکنندگان کوچک به ویژه در مناطق گرمسیری با مراتع فقیر از لحاظ کمّی و کیفی، اهمیت اقتصادی دارند. از دادههای جمع­آوری شده طی سالهای 1376 تا 1392 در ایستگاه اصلاح نژاد بز کرکی رائینی، واقع در استان کرمان، جنوب شرقی ایران، برای تخمین پارامترهای ژنتیکی صفات افزایش وزن روزانه از تولد تا شیرگیری (ADG1)، افزایش وزن روزانه از شیرگیری تا شش ماهگی (ADG2)، افزایش وزن روزانه از تولد تا شش ماهگی (ADG3)، نسبت کلیبر از تولّد تا شیرگیری (KR1)، نسبت کلیبر از شیرگیری تا شش ماهگی (KR2)، نسبت کلیبر از تولد تا شش ماهگی (KR3)، کارایی رشد از تولد تا شیرگیری (GE1)، کارایی رشد از شیرگیری تا شش ماهگی (GE2) و کارایی رشد از تولد تا شش ماهگی (GE3) استفاده شد. تعداد رکوردهای صفات در دوره تولد تا شیرگیری، شیرگیری تا شش ماهگی و تولد تا شش ماهگی به ترتیب 2817، 2541 و 2701 رکورد بودند. وراثت­پذیریهای مستقیم صفات ADG1، ADG2، ADG3، KR1، KR2، KR3، GE1، GE2 و GE3 به ترتیب 08/0، 03/0، 06/0، 19/0، 03/0، 07/0، 07/0، 09/0 و 08/0 برآورد شدند. وراثت­پذیریهای مادری صفات ADG1، KR1 و GE1 به ترتیب 09/0، 11/0 و 10/0 برآورد شدند. همبستگیهای ژنتیکی بین صفات از 95/0- بین ADG3 و KR1 تا 99/0 بین ADG1 و KR1، ADG2 و KR2، ADG3 و KR3، KR1 و GE1 متغیر بودند. همبستگیهای فنوتیپی بین صفات هر دوره مثبت و زیاد بودند و از 77/0 بین ADG2 و GE2 تا 96/0 بین ADG3 و KR3 متغیّر بودند. نتایج حاصل نشان داد که به دلیل تنوع کم ژنتیکی افزایشی در صفات نرخ و کارایی رشد انتخاب مستقیم برای بهبود زنتیکی این صفات کارآمد نیست. Manuscript profile -
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755 - اثر فلاشینگ روی رشد، نمره وضعیت بدنی و راندمان تولیدمثلی میشهای کوریدال در طی فصل جفتگیری و دوره
ام. آمبرین آ.اس. بهات اچ.ام. خان ام.تی. بندای آ. رشید اچ. غزالی اچ. اشرفمطالعه حاضر برای بهبود عملکرد تولیدمثلی میشهای کوریدال با فلاشینگ تغذیهای انجام شد. 40 رأس میش کوریدال به چهار گروه تیماری (1T، 2T، 3T و TC) با 10 میش در هر گروه تقسیم شدند. تغذیه اضافی میشها در شروع فصل جفتگیری برای تقریباً 34 روز به طوری که دو دوره فحلی را پوشش د Moreمطالعه حاضر برای بهبود عملکرد تولیدمثلی میشهای کوریدال با فلاشینگ تغذیهای انجام شد. 40 رأس میش کوریدال به چهار گروه تیماری (1T، 2T، 3T و TC) با 10 میش در هر گروه تقسیم شدند. تغذیه اضافی میشها در شروع فصل جفتگیری برای تقریباً 34 روز به طوری که دو دوره فحلی را پوشش دهد، انجام شد. میشهای گروه اول (گروه شاهد، TC) هیچ مکمل کنسانترهای دریافت نمیکردند و تنها روزانه 6 الی 8 ساعت چرا میکردند. میشهای گروههای تیماری، علاوه بر چرا کردن، روزانه از مکمل کنسانترهای به میزان 300 (1T)، 400 (2T) و 500 (3T) گرم تغذیه میشدند. تغییرات وزنی بدن به طور معنیداری (05/0P≤) در میشهای تغذیه شده با 500 گرم کنسانتره در مقایسه با گروههای TCو 1 Tبالاتر بود، در حالیکه تفاوت معنیداری بین سایر گروهها در رابطه با افزایش وزن بدن مشاهده نشد. گروههای 2 Tو 3 Tبه طور معنیداری (05/0P≤) نمره وضعیت بدنی بالاتری را در مقایسه با گروه کنترل و 1 Tنشان دادند. به هرحال هیچ گونه تفاوت معنیداری بین گروههای کنترل و 1 Tو همچنین 2 Tو 3 Tمشاهده نشد. درصد جفتگیری در میشهای تمامی گروهها 100 درصدی بود، در حالیکه درصد برهزایی مشاهده شده در گروههای TC، 1T، 2 Tو 3 Tبه ترتیب 70، 80، 90 و 100 درصد بود. بالاترین وزن تولد در گروه 3T مشاهده شد (05/0P≤) که در گروههای 1T، 2 Tوگروه شاهد دنبال میشد. نتایج نشان دهنده بهبود قابل ملاحظهای در وزن بدن میشها، عملکرد میش در طی دوره آبستنی، نرخ برهزایی و وزن تولد برهها به دلیل فلاشینگ تغذیهای بود. نتایج، همچنین نشان داد که در میان چهار گروه تیماری، میشهای گروه 3 Tبهبود معنیداری را در وزن بدن و راندمان تولیدمثلی در نتیجه فلاشینگ در فصل جفتگیری نشان دادند. نتیجه اینکه تغذیه 500 گرم از کنسانتره بعلاوه چرای کافی، یک رژیم تغذیهای مطلوب در مقایسه با سایر گروههای تیماری به منظور رسیدن به یک نمره وضعیت بدنی و راندمان تولیدمثلی بالاتر است. Manuscript profile -
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756 - اثر مدیریت مسیر مادران پدر بر پارامترهای ژنتیکی و اقتصادی یک برنامه شبیهسازی شده انتخاب ژنوم
س. عزیزیان ع.ا. شادپرور س. جوئزی-شکالگورابی ن. قوی حسین-زادهدر این تحقیق یک مدل قطعی مبتنی بر جریان ژن با در نظر گرفتن مشخصات جمعیت گاو هلشتین ایران اجرا شد تا اثر تغییر تعداد گروه سنی مسیر مادران پدر آینده (DS) و تعداد ماده مورد نیاز برای تولید یک گاو نر جوان (YB) که قرار است به عنوان پدر آینده ارزیابی شود، بر رشد ژنتیکی و کارآ Moreدر این تحقیق یک مدل قطعی مبتنی بر جریان ژن با در نظر گرفتن مشخصات جمعیت گاو هلشتین ایران اجرا شد تا اثر تغییر تعداد گروه سنی مسیر مادران پدر آینده (DS) و تعداد ماده مورد نیاز برای تولید یک گاو نر جوان (YB) که قرار است به عنوان پدر آینده ارزیابی شود، بر رشد ژنتیکی و کارآیی اقتصادی حاصل از یک برنامه انتخاب ژنومی برای تولید شیر به عنوان یک هدف انتخاب بررسی شود. بر اساس شبیه سازی، تغییر تعداد گروه سنی از 10 به 1 منتج شد به نرخ جایگزینی بالاتر (از 22/0 به 1) و فاصله نسل کوتاهتر برای مسیر DS. متعاقب آن، کارآیی اقتصادی برنامه تا رسیدن به یک ماکزیمم افزایش یافت و پس از آن یک روند نزولی مشاهد گشت. حداکثر کارآیی اقتصادی (68/25) هنگامی حاصل شد که تعداد گروه سنی مسیر DS 7 فرض شد. با تغییر تعداد مادر مورد نیاز برای ایجاد یک YB از 7 به 1، رشد ژنتیکی در هدف انتخاب از 0232/0 به 0264/0 کیلوگرم به ازای هر رأس گاو شیری و در نتیجه کارآیی اقتصادی از 42/25 به 52/28 افزایش یافت. نتایج آشکار ساخت که کاهش فاصله نسل لزوما منتج به حداکثر کارآیی اقتصادی نشده و یک حد بهینه برای فاصله نسل وجود دارد. تعداد کمتر مورد نیاز به ازای هر YB میتواند به کارآیی اقتصادی بیشتر منجر شود و لذا به عنوان یک راهبرد مدیریتی مؤثر برای بهبود کارآیی اقتصادی برنامه انتخاب ژنومی برای تولید شیر باید مد نظر قرار بگیرد. Manuscript profile -
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757 - Effects of Surgical Spaying on Heifer Feedlot Growth Performance and Dietary Energetics
A. Plascencia V.M. González-Vizcarra Y.S. Valdés-García A. Barreras A. Estrada-Angulo J.D. Urías-Estrada R.A. Zinn -
Open Access Article
758 - اثر تغذیه مرطوب بر بازده تبدیل خوراک در مرغهای تخمگذار در فصل تابستان
هـ. اشرف وایز ل. گاوتام ر.ک. نگدا جی. احمد بهاتهدف از این مطالعه، بررسی اثر تغذیه مرطوب بر بازده تبدیل خوراک در مرغ­های تخمگذار در فصل تابستان بود. این مطالعه روی 192 قطعه پولت با هشت هفته سن (توزیع شده در چهار گروه) انجام شد. خوراک ارائه شده به جوجه شامل جیره آغازین تا سن 8 هفتگی و جیره غذایی رشد تا سن 20 هفتگی Moreهدف از این مطالعه، بررسی اثر تغذیه مرطوب بر بازده تبدیل خوراک در مرغ­های تخمگذار در فصل تابستان بود. این مطالعه روی 192 قطعه پولت با هشت هفته سن (توزیع شده در چهار گروه) انجام شد. خوراک ارائه شده به جوجه شامل جیره آغازین تا سن 8 هفتگی و جیره غذایی رشد تا سن 20 هفتگی بود. از هفته 20 به بعد، پرندگان با جیره غذایی تخمگذار تا پایان آزمایش تغذیه شدند. پرندگان گروه شاهد خوراک خشک دریافت نمودند. آب با خوراک در تیمار 2 (700 میلی­لیتر/کیلوگرم)، تیمار 3 (800 میلی­لیتر در کیلوگرم) و تیمار 4 (900 میلی­لیتر در کیلوگرم) مخلوط شد. این مطالعه به مدت 100 روز به طول انجامید. نتایج نشان داد که تغذیه مرطوب، بازده غذا (FCR) بر حسب کیلوگرم خوراک به ازای تعداد دوازده تخم مرغ و کیلوگرم خوراک به ازای هر کیلوگرم وزن تخم را در مقایسه با کنترل بهبود بخشید. به طور کلی، نتایج نشان می­دهد بهبود در بازده تبدیل خوراک در همه گروه­ها نسبت به شاهد اما بسیار معنی­دار (05/0>P) بود و در گروه T3 که در آن آب در سطح 800 میلی­لیتر به کیلوگرم خوراک اضافه شده بود. Manuscript profile -
Open Access Article
759 - Gas Emission from Waste of Cows Fed Monensin and Acacia mearnsii Tannins
R.J. Tseu F. Perna Junior R.F. Carvalho G.A. Sene A.H. Peres C.B. Tropaldi F. Dos Anjos P.H.M. Rodrigues -
Open Access Article
760 - بررسی تاثیر یک پریبیوتیک مایع بر عملکرد رشد و اندامهای داخلی بلدرچینهای ژاپنی
ح. حاجاتی ع. گیلانی س. سیفیآزمایشی برای ارزیابی اثرات یک پری­بیوتیک مایع بر خصوصیات لاشه، دستگاه گوارش و صفات تولیدی بلدرچین­های ژاپنی انجام شد. تعداد 80 قطعه جوجه 7 روزه بلدرچین ژاپنی به دو تیمار اختصاص داده شدند. هر تیمار دارای 4 تکرار (پن) با 10 قطعه پرنده در هر کدام بود. تیمار اول (شا Moreآزمایشی برای ارزیابی اثرات یک پری­بیوتیک مایع بر خصوصیات لاشه، دستگاه گوارش و صفات تولیدی بلدرچین­های ژاپنی انجام شد. تعداد 80 قطعه جوجه 7 روزه بلدرچین ژاپنی به دو تیمار اختصاص داده شدند. هر تیمار دارای 4 تکرار (پن) با 10 قطعه پرنده در هر کدام بود. تیمار اول (شاهد) شامل یک جیره غذایی توصیه شده استاندارد بدون افزودنی پری­بیوتیک بود. تیمار دوم دارای همان جیره غذایی نخست بود ولی یک پری­بیوتیک مایع به مقدار 5/0 میلی­لیتر در هر لیتر آب آشامیدنی پرنده­ها در کل دوره آزمایش استفاده گردید. آب و خوراک به صورت دسترسی آزاد از 7 تا 42 روزگی فراهم شدند. مصرف خوراک، افزایش وزن بدن و ضریب تبدیل خوراک به صورت هفتگی تعیین شدند. استفاده از پری­بیوتیک مایع اثر معنی­داری بر وزن نسبی اندام­های داخلی و لاشه نداشت. میزان تلفات تحت تاثیر تیمارها قرار نگرفت. در کل، مصرف خوراک پرنده­های دریافتکننده پری­بیوتیک مایع به طور معنی­داری کاهش و وزن­گیری به طور قابل ملاحظه­ای افزایش یافت. در نتیجه ضریب تبدیل خوراک کل دوره آزمایش بهبود یافت. Manuscript profile -
Open Access Article
761 - Determinants of Technical Efficiency of the Dairy Farmers in Ada’a District of Oromia State, Ethiopia
L. Fita M.M. Trivedi A.M. Patel B. Tassew C.G. Joshi -
Open Access Article
762 - Growth Performance, Rumen and Cecum Fermentation Parameters, and Microbial Protein Synthesis in Kermani Lambs with Divergent Residual Feed Intake Fed Forage and Concentrate Diets
M. Gevari M.R. Dehghani M. Yousef Elahi R. Hoshyar -
Open Access Article
763 - Genetics of Body Conformation and Feed Efficiency Characteristics in a Control Line of Rhode Island Red Chicken
آ.کا. داس اس. کومار آ. رحیم -
Open Access Article
764 - Evaluation of Pre-ozonation Unit Efficiency in Turbidity and TOC Removal (Case Study: Kouhsabz Water Treatment Plant)
Bahman Masoomi Nematollah Jaafarzadeh Haghighi Fard Tayebeh Tabatabaei Esmael kouhgardi Sahand JorfiThe overall objective of this study was to investigate the turbidity and total organic carbon (TOC) of raw water entering the treatment plant and the pre-ozonation unit's efficiency is to remove these compounds. Sampling from raw water and pre-ozonation water was done w MoreThe overall objective of this study was to investigate the turbidity and total organic carbon (TOC) of raw water entering the treatment plant and the pre-ozonation unit's efficiency is to remove these compounds. Sampling from raw water and pre-ozonation water was done within 6 months and tested according to the standard method of the method. The results showed that there was a direct correlation between total organic carbon content and turbidity that's more in winter and in February with a high turbidity of 18NTU and TOC above 7mg / l. It was also found that the average pre-ozonation unit efficiency in the removal of total organic carbon with an average ozone dose of 3kg / hr and the contact time 18 minutes, is 20.52%, The highest TOC removal efficiency was in February (35.7%) and the lowest removal efficiency (14.08%) in May. The average turbidity removal efficiency is 61%, the highest and lowest percentages eliminated respectively were in February with 85.2% and 30% in July. Therefore, to increase the efficiency of pre-ozonation unit in removing organic compounds and ... It is necessary to carefully consider the process and design factors To increase the efficiency of removal of compounds. Manuscript profile -
Open Access Article
765 - Study of the Effect of Microwave and Energy Efficiency on Industrial Wastewater Remediation
Zeinab AMIN NEZIH KAMIL SALIHOGLU MERVE AHMADThe overall aim of this study was to investigate the effect of microwave radiation treatment on chemical oxygen demand, color and nutrients in the industrial wastewater in Bursa, Turkey without by products in the optimum time, according to the standard method. The resul MoreThe overall aim of this study was to investigate the effect of microwave radiation treatment on chemical oxygen demand, color and nutrients in the industrial wastewater in Bursa, Turkey without by products in the optimum time, according to the standard method. The results show that during microwave radiation with a power of 900 watts, the efficiency of removal of 79% chemical oxygen demand, 23.55% color, 65% phosphorus and 95% ammonium nitrate with sampling at 0, 60, 120, 150, 180, 240420,360,300, s. The power consumption is also 30.8 watts, 164 watts, 143.5 watts and 102.5 watts, respectively. After five minutes of microwave irradiation, the removal efficiency of over 50% for nutrients and chemical oxygen demand is observed, and the lowest removal percentage is related to color with maximum energy consumption. Manuscript profile -
Open Access Article
766 - Comparison of the effect of up-flow and down-flow Cascade anaerobic bioreactors in industrial wastewater treatment of sugar factory
Hamidreza Ansari joveini Amirhoseini Javid Amirhesam Hasani Morteza KashefiolaslThe present research is the result of laboratory studies related to the comparison of the effect of up- and down-flows in the treatment of artificial biological industrial wastewater (combination of water and molasses of sugar beet factory) using suspended-bed anaerobic MoreThe present research is the result of laboratory studies related to the comparison of the effect of up- and down-flows in the treatment of artificial biological industrial wastewater (combination of water and molasses of sugar beet factory) using suspended-bed anaerobic reactors. The main purpose of this study is to compare the results of chemical oxygen demand (COD) removal efficiency in different conditions of organic loading in accordance with the type of flow in suspended-bed sequencing reactors containing plastic media, rock materials and activated carbon. For this purpose, three cylindrical pilots with a diameter of 200 mm and a height of 800 mm with a volume of 24 liters on a laboratory scale and made of Unplasticized PolyVinyl Chloride (UPVC) have been used. During the whole period of research, the discharge of sewage entering the reactor varied from 2 to 4 liters per hour and the retention time of the system varied from 18 to 36 hours. After the start-up period was passed and the COD removal efficiency remained constant, the highest efficiency of COD removal percentage in the up-flow with the maximum amount of hydraulic retention time equal to 36 hours and organic load equal to 4.51 kg COD/m3.d equal to 88% was recorded. Also, the highest efficiency of COD removal percentage in the down-flow with hydraulic retention time equal to 24 hours and organic load equal to 3.21 Kg COD/m3 .d equal to 78% was recorded. Manuscript profile -
Open Access Article
767 - Technical and economical comparison of canal irrigation systems, low pressure and pressure pipes (Case study; arayez 2&3 project, Shush city)
ebrahim alipour Mohammad hossein purmohammadiWater consumption in agriculture, increasing irrigation efficiency, and reducing water consumption against the constant yield of the crop are very important. Therefore, the study of water consumption efficiency in different irrigation methods has a significant role in t MoreWater consumption in agriculture, increasing irrigation efficiency, and reducing water consumption against the constant yield of the crop are very important. Therefore, the study of water consumption efficiency in different irrigation methods has a significant role in the macro-agricultural and industrial planning of the country. In the present study, the efficiency of gravity irrigation systems (channelet), low pressure, and pressure irrigation in the lands north of Karkheh Khuzestan (arayez 2&3 project) has been investigated. The results showed that the irrigation efficiency in the pressurized irrigation method was the highest so the total efficiency in the pressurized irrigation system is 64.2% higher than channelet irrigation and 55.8% higher than low-pressure irrigation. Also, irrigation efficiency in low-pressure irrigation methods is about 5.3% higher than in channelet irrigation. Economical studies and analysis of different irrigation systems showed that although the initial cost of setting up a pressurized irrigation system is higher than gravity and low-pressure irrigation, in a long time, it will be economically viable while the return on investment in this project is maximum 5 years. Manuscript profile -
Open Access Article
768 - Investigating the Strategies for Implementing Knowledge Management in Dam Construction Projects and Evaluating Its Impact on Efficiency with the Involvement of Various Stakeholders
Ali sadeghzadeh khayati Sina Fard Moradinia Eshag Rsooli SrabiExperience has shown that knowledge management receives more attention in the private sector than in the public sector in advanced countries. Knowledge management is a pillar for achieving knowledge-based development. This research aims to design and explain a model for MoreExperience has shown that knowledge management receives more attention in the private sector than in the public sector in advanced countries. Knowledge management is a pillar for achieving knowledge-based development. This research aims to design and explain a model for cost and time management in construction projects based on the PMBOK standard. The research is applied in terms of its objective. The statistical population of this research includes managers, experts, and consultants of Farazab Water and Water Affairs Company in Tabriz, totaling approximately 120 individuals. Out of this number, 92 individuals were selected as the sample using Cochran's formula. In order to determine the validity of the questionnaire, expert opinions from 10 professionals in the field of project planning and control were used, during which the project indicators reached 74. The reliability of the questionnaire was estimated using the Cronbach's alpha coefficient. SPSS software and hierarchical analysis were used to analyze the data. The results indicate that all questionnaire factors have a significant impact, and the ranking of influential dimensions on cost and time in construction projects according to the PMBOK standard are as follows: project cost management, project time management, integrated project management, project human resource management, project scope management, project quality management, project procurement management, project risk management, project stakeholder management, and project communication management. Manuscript profile -
Open Access Article
769 - Evaluation of productivity, efficiency and ranking of thermal power plants: an approach based on stochastic data envelopment analysis
Mehdi KhodadadipourIn data envelopment analysis, different models are developed in different fields with different data for evaluation and ranking of DMUs. While in many applications issues, unit managers are faced with stochastic data, and they need a method to evaluate their supervised MoreIn data envelopment analysis, different models are developed in different fields with different data for evaluation and ranking of DMUs. While in many applications issues, unit managers are faced with stochastic data, and they need a method to evaluate their supervised units in a way that can evaluate and rank such DMUs. When working with stochastic data, considering the probability of occurrence of unpredictable states (the level of error) provided by managers, the DMUs are evaluated. In this paper using Probability statistics techniques and normal distribution and the BCC model with undesirable outputs and a specific risk ofSpecified,a new stochastic model called Expected Ranking Criterion is introduced. Based on this,the stochastic cross-efficiency evaluation. Given the non-uniqueness of resulting optimal solutions, a model is introduced for rating priorities by which cross-efficiency is performed using aggressive method. The proposed model is implemented for 32 thermal power plants with stochastic inputs and undesirable outputs. Manuscript profile -
Open Access Article
770 - Evaluation of Turkish durum wheat (Triticum turgidum var. durum) genotypes based on quantitative traits and shoot zinc accumulation under zinc-deficient calcareous soil
Ezatollah Esfandiari Majid Abdoli Behzad Sadeghzadeh Seyed-Bahman Mousavi -
Open Access Article
771 - Effects of different irrigation methods and hormone application on water use efficiency, yield, and leaf biochemical traits in potato
Atefeh Pourasadollahi Adel Siosemardeh Farzad Hosseinpanahi Yusef Sohrabi -
Open Access Article
772 - The Effect of Planting Date on Thermal Indices and Dry matter Yield of Different Clover Species
Mohammad Zamanian Mona Poureisa Farid GolzardiThis study aimed to investigate the changes in thermal indices of various clover genotypes under cold stress. A field experiment was conducted to evaluate the effect of different planting dates (14 Sep., 28 Sep., and 8 Oct.) and clover genotypes (late-maturity Persian c MoreThis study aimed to investigate the changes in thermal indices of various clover genotypes under cold stress. A field experiment was conducted to evaluate the effect of different planting dates (14 Sep., 28 Sep., and 8 Oct.) and clover genotypes (late-maturity Persian clover, mid-maturity Persian clover, early-maturity Persian clover, berseem clover, red clover, and crimson clover). The results showed that delaying the planting date from September 14 to October 8 caused a significant decrease in growing degree-day (GDD), photothermal index (PTI), and heat use efficiency (HUE) in all studied genotypes. Early-maturity Persian clover and crimson clover had the lowest thermal requirements, while red clover had the highest GDD in all the investigated planting dates. During the first cut, the early-maturity Persian clover demonstrated the highest HUE (4.09 kg ha-1 °C days), followed by crimson clover. In contrast, red clover recorded the lowest HUE (1.43 kg ha-1°C days) on the last planting date. Early-maturity Persian clover and crimson clover may be preferred for forage production under cold stress due to their higher HUE values. The highest dry matter yield of the first cut (6300 kg ha-1) was obtained on the first planting date and by mid-maturity Persian clover, while the lowest yield (2429 kg ha-1) was obtained on the last planting date and by red clover. Overall, delayed planting dates resulted in accelerated development and decreased thermal requirements in clover species. The early-maturity genotypes were found to be more suitable for forage production under environmental stresses such as water shortages. Manuscript profile -
Open Access Article
773 - A Balanced Distribution Method Of Cluster Head Selection For Clustering In Wireless Sensor Networks
Marzieh Gholami Mehdi Golsorkhtabaramiri -
Open Access Article
774 - Economics of Leafy Vegetable Production among Pastoralists in Kwara State, Nigeria
Olubunmi Omotesho Abdulazeez Muhammed-Lawal Abdulrashid Abdulganiyu Khadijat Amolegbe -
Open Access Article
775 - Resource Use Efficiency Andmisery of Sweet Potato Production Window into Financial Surplus for Households in Delta State, Nigeria
Theophilus Miebi Gbigbi -
Open Access Article
776 - The Role of Training, Extension and Education Facilities on Production Efficiency of Rice Growers in Dinajpur District of Bangladesh
Md. Shajedur Rahaman Sadika Haque Md Abdur Sarkar Mou Sarker Md Abu Siddique -
Open Access Article
777 - Input-Output Relationship in Cassava Production: Empirical Evidence among Cassava Farmers in Kogi State, Nigeria
Thankgod Akoh Ufedo Shaibu Habibat Usman -
Open Access Article
778 - Two Stage Maize Supply Chain Model For Production And Marketing Efficiency
Never Mafuse Abbysinia Mushunje Simbarashe Tatsvarei Emmanuel Zivenge -
Open Access Article
779 - Profitability and Technical Efficiency of Maize-Based Cropping System Farmers in Ondo State, Nigeria
Tolulope Olubunmi-Ajayi Taye Amos Emmanuel Borokini Oluyede Aturamu -
Open Access Article
780 - Resource-Use Efficiency of Pepper Farmers in Ado-Local Government Area of Ekiti State
Julius Ilesanmi Kayode Akeredolu Adeyose Akinbola Peter Oladoyin Justin Ijigbade -
Open Access Article
781 - Comparing Technical and Economic Efficiency among Organic and Conventional Italian Olive Farms
Nicola Galluzzo -
Open Access Article
782 - Economic Analysis of Maize Production in Ogori Magongo Local Government Area of Kogi State, Nigeria
A.B. Mohammed A.F. Ayanlere U. Ibrahim Muhammed Lawal -
Open Access Article
783 - Marketing Performance of Salad Vegetables: The Case of Cabbage Marketing in Abia State, Nigeria
Osondu, C. K. Nwadike F. C Ijioma J. C. Udah S.C. Ugboaja C .I. -
Open Access Article
784 - The Relationship between Achievement Motivation and Job Efficiency of Agricultural Faculty Staff, Islamic Azad University, Shoushtar Branch
Masoud Ahmadinejad Mahmoud Yaghoubidoost -
Open Access Article
785 - Comparison of the Efficiency of Traditional and Industrial Milk Production Units in Khuzestan Province
M. A. Sabaghi H. Badavi A. R. Ommani -
Open Access Article
786 - Gender Analysis of Energy Use for Rice Production in North Central, Nigeria
H. Y. Ibrahim U. Shuaibu E. Ogezi -
Open Access Article
787 - Study of assimilate remobilization as affected by heat stress in rice cultivars in north of Khuzestan
Abdolali Gilani1 Seyed Ataallah Siadat2 Sami Jalali3 Kaveh Limouchi4An experiment was carried out to study of heat stress on assimilate remobilization of rice in north of Khuzestan province in a split-plot arrangement using randomized complete blokes design with three replication in 2006 and 2007 at Shavoor Agricultural Research Station MoreAn experiment was carried out to study of heat stress on assimilate remobilization of rice in north of Khuzestan province in a split-plot arrangement using randomized complete blokes design with three replication in 2006 and 2007 at Shavoor Agricultural Research Station, Dependent in Research Center of Agricultural and Natural Resources of Khuzestan. For exposing rice cultivars to different higher temperature regimes, main plot were assigned to three sowing dates from 5 May, 26 May and 16 Jun and cultivars were; Hoveizeh, Hamar (heat tolerance) Ghermez Anbori, Champa (heat sensitive) and Danial (relatively heat tolerant) were in sub-plots. Results showed that the highest dry matter redistribution was in Ghermez Anbori and heat tolerant cultivars. The grain, stem and leaf portions were significant on sowing date and cultivars. The second and third planting dates and heat tolerant cultivars had higher content. The highest remobilization, current photosynthesis and the portion of organs in filling grain yield were 1140.8 kg.ha-1, 3923.3 kg.ha-1, and 22.5%, respectively, in 26 May planting. But the highest share portion of current photosynthesis in grain yield was in 5 may in the planting date. Manuscript profile -
Open Access Article
788 - Evaluation of AquaCrop and WOFOST in simulating of corn yield under deficit irrigation
Aslan Egdernezhad1 Ali Reza Masjedi 2 Ali Reza Shokouhfar 3 Mojtaba Alavifazel 4This study was conducted to evaluate two crop growth models (AquaCrop and WOFOST) in simulating corn yield under different irrigation water (T1:50, T2:75, T3:100 and T4: 150 mm evaporation from pan A) using data collected from a research farm station in Ahwaz during one MoreThis study was conducted to evaluate two crop growth models (AquaCrop and WOFOST) in simulating corn yield under different irrigation water (T1:50, T2:75, T3:100 and T4: 150 mm evaporation from pan A) using data collected from a research farm station in Ahwaz during one season crop. Results showed that the highest and the lowest different between collected and simulated yield values using AquaCrop were obtained in T3 (0.45 ton.ha-1) and T2 (0.10 ton.ha-1), respectively. Using WOFOST were obtained in T4 (0.15 ton.ha-1) and T1 (0.01 ton.ha-1), respectively. The lowest and the highest different for biomass values using AquaCrop were obtained in T4 (1.1 ton.ha-1) and T3 (2.03 ton.ha-1), respectively. Results for WOFOST were obtained in T2 (0.65 ton.ha-1) and T1 (1.95 ton.ha-1), respectively. RSME values for corn yield using AquaCrop and WOFOST were 0.16 and 0.15 ton.ha-1, respectively. RMSE values for corn biomass using AquaCrop and WOFOST were 0.92 and 0.88 ton.ha-1, respectively. Values for MBE using AquaCrop and WOFOST were 0.04 and -0.05 ton.ha-1 for corn yield, respectively, and -0.52 and -0.47 ton.ha-1 for corn biomass, respectively. In general, WOFOST had a better accuracy to simulate corn yield. Manuscript profile -
Open Access Article
789 - Effects of amounts and nitrogen fertilizer splitting on yield, yield components and dry matter remobilization of wheat (cv. Chamran)
Morteza Khanjani1 Abdollah Bahrani2*This experiment was conducted as factorial based on completely randomized blocks design with 3 replications during 2014-2015 in Ramhormoz, Khozestan province. The experiment consisted of two factors: nitrogen fertilizer rates: (zero, 50, 100 and 200 kg per hectare) and MoreThis experiment was conducted as factorial based on completely randomized blocks design with 3 replications during 2014-2015 in Ramhormoz, Khozestan province. The experiment consisted of two factors: nitrogen fertilizer rates: (zero, 50, 100 and 200 kg per hectare) and split nitrogen application included: T1 = (50% at planting + 50% at stem elongation), T2 = (33% at planting + 33% at stem elongation + 33% before ear emergence), T3 = (25% at planting + 50% + 25%at stem elongation before ear emergence) and T4 = (25% at planting + 25% + 25% at stem elongation before ear emergence + 25% in the milky stage. The results showed that difference between the levels of nitrogen fertilizer in plant height, number of spikes per square meter, grain number per spike, 1000-seed weight, grain yield, biological yield, harvest index and the amount and efficiency of current photosynthesis at 1% level of probability and remobilization rate of dry matter at 5% level of probability. Effect of split application of nitrogen on plant height, number of spikes per square meter, grain yield, biological yield and current photosynthesis at 1% level of probability and the efficiency photosynthesis current at 5% level of probability was significant. The interaction of the amount and nitrogen fertilizer splitting on biological yield and efficiency of dry matter remobilization and efficiency of current photosynthesis at 1% level of probability was significant. The highest grain yield was in N2 (100 kg ha nitrogen) with 5.5141 kg/ha and fertilizer splitting in T3 (25% at planting + 50% + 25% at stem elongation before ear emergence) 4.4592 kg/ha, respectively. The greatest amount and efficiency of current photosynthesis were observed in N2 (100 kg/ha nitrogen) and T3 (25% planting + 50% + 25% stem elongation before Ear emergence). In general, consuming 100 kg/ha of nitrogen fertilizer with T3 splitting (25% planting + 50% stem elongation + 25% before Ear emergence) increase yield and yield components compared to other treatments and it can be recommended in the region of study. Manuscript profile -
Open Access Article
790 - Evaluation of planting row spacing and plant spacing on the planting row in the sugar beet field in Karaj region
Reza Esmaeili Rahim Mohammadian Hossein Heidari Sharif Abad Ghorban Noor MohammadiSince the yield of sugar beet is affected by the length of the growing period and agronomic management, to investigate the delayed cultivation, this experiment was conducted in 2015 and 2016 with two treatments of planting row spacing (Pr) with two levels of 25 and 40 c MoreSince the yield of sugar beet is affected by the length of the growing period and agronomic management, to investigate the delayed cultivation, this experiment was conducted in 2015 and 2016 with two treatments of planting row spacing (Pr) with two levels of 25 and 40 cm (main plot) and three levels of plant spacing on row (Ps) using 1.7, 2.4, and 3.1 units per hectare seeds (sub-plot), it was carried out in the form of split plots with a RCBD in four replications. By adding the harvest date treatment with two levels of conventional and delayed in the second year, the statistical design was changed to split plots factorial (Ps and harvest date as factorial). The highest percentage of white sugar content (WSC) and potassium was obtained in the 40 cm row spacing. In the second year, a 37% decrease in the number of final roots compared to the first year caused a 25% decrease in root yield (RY), 31% in white sugar yield (WSY), and 21% in irrigation water use efficiency (IWUE). Contrary to the first year, the effect of Ps was not significant on traits such as RY, WSY, and IWUE, while it had no significant effect on the percentage of WSC in any of the two years. In the second year, with a delay in harvesting, the increase in WSY and IWUE was 32% and 16%, respectively. Therefore, Pr of 25 cm and Ps of 22 cm (2.4 units) is recommended for the Karaj region. Manuscript profile -
Open Access Article
791 - Evaluation of effect planting mechanization pattern and method irrigation on consumption irrigation efficiency and wheat yield
Amin Reza Jamshidi1*For evaluating the operation of two systems of planting wheat in raised bed planting with furrow irrigation in comparison with conventional planting with Flooding irrigation a testing was conducted in year of 2017-18 in Shoushtar township located in north of Khuzestan p MoreFor evaluating the operation of two systems of planting wheat in raised bed planting with furrow irrigation in comparison with conventional planting with Flooding irrigation a testing was conducted in year of 2017-18 in Shoushtar township located in north of Khuzestan province. The attendees were conducted which induced type of planting (wet planting, dry planting), planting with line adopting on the mound (fixed furrow-spring furrow) and 3 line of planting on the mound with spaces of 60 and 75 cm in 3 line in the furrow of random complete blocks with 3 replications. Wet planting with the use of line adopting with spring furrow and spaces of 75 cm increased the operation (p< 0/01) in compares with other attendances by 33%. Also, the harvest index showed a meaning full difference on the factor of space between row and type of planting at the type of furrow (p<0/01) the most operation of seed was related with the amount of 5467 kg related to wet planting and 75 cm rows space and use of line adopting with spring furrower and the least operation with the amount of 4133 kg was related to conventional planting. The results of calculations showed that wet planting has 15% more Irrigation efficiency in compares with tool steeling and conventional planting with irrigation efficiency of 2/184 kg /m3 was the least and planting on atmospheric and 75 cm mound with irrigation efficiency with 29% difference. So, planting with wet planting in rows of 75 cm with spring furrow was the most suitable attendance in increasing operation of seed and irrigation efficiency. Manuscript profile -
Open Access Article
792 - Evaluation of the effect of planting date on yield and dry matter remobilization of wheat cultivars
Mojtaba Alavi Fazel Mahboubeh RanjbarIn order to evaluate different planting dates in wheat cultivars on yield and remobilization of dry matter in the crop year 1396-97 in Ahvaz in the form of split plots in a randomized complete block design with three replications. the main factor included three planting MoreIn order to evaluate different planting dates in wheat cultivars on yield and remobilization of dry matter in the crop year 1396-97 in Ahvaz in the form of split plots in a randomized complete block design with three replications. the main factor included three planting dates of December 11, 31 December and January 20 and the sub-factor included four bread wheat cultivars Chamran-2, Sirvan, Mehregan and Chamran. the results showed that the effect of planting date and cultivar on current photosynthesis rate, current photosynthesis efficiency, remobilization rate and remobilization efficiency was significant at 1% level and the interaction effect of planting date and cultivar on grain yield and biological yield was significant at 1% level. the highest grain yield was obtained on planting date of December 11 and Chamran-2 cultivar (5420 kg/ha) while the lowest grain yield was obtained on planting date of 31 December and Sirvan cultivar (2660 kg/ha). the highest amount of remobilization was obtained from the date of planting on December 11 (153.45 g/m2) and the lowest rate was obtained from the date of planting on January 20 (100.25 g/m2). as a result, the planting date of December 11 was superior to other planting dates due to the provision of suitable temperature and radiation conditions in the vegetative and reproductive period and its favorable effect on yield and dry matter transfer of wheat in Chamran-2 cultivar. Manuscript profile -
Open Access Article
793 - Study of relation Social alienation and Political culture among Tabriz Teachers
Mahmoud Elmi marya pashaeiWithout studying the culture of a community or a group, one can not study their political and political attitudes. Hence, the most important cornersThe purpose of the present study was to determine the relationship between social alienation and political culture among h MoreWithout studying the culture of a community or a group, one can not study their political and political attitudes. Hence, the most important cornersThe purpose of the present study was to determine the relationship between social alienation and political culture among high school teachers in Tabriz. The statistical population of the study included high school teachers in Tabriz in the academic year of 2016-2017 to the number of 2625 subjects. The sample size was estimated using the Cochran formula as 335 subjects. A random stratified random sampling method was used to select the samples. The validity of the tool was confirmed by the professors of the group and its reliability was confirmed by using Cronbach's alpha test with a high score of 0.7. To test the hypotheses, Pearson correlation test, T-test and regression were used. According to the results of the research, political culture and social alienation of teachers are moderate. Among the variables of political culture, trust in the effectiveness of political monitoring and trust in the effectiveness of manpower management, anti-conflict culture and violence with social alienation, a significant correlation was obtained Also, 23% of the changes in the teacher's political culture can be explained by the social alienation variable Manuscript profile -
Open Access Article
794 - مدل سازی جریان انرژی و ارزیابی اقتصادی تولید هندوانه در استان فارس در ایران
Sajad Rostami Maryam Lotfalian Bahram Hosseinzadeh مهدی قاسمی ورنامخستیاین مطالعه با هدف بررسی بهرهوری انرژی مصرفی و آنالیز اقتصادی روشهای مختلف کشت هندوانه در استان فارس، کشور ایران انجام شد. روشهای تولید هندوانه به پنج گروه تقسیم شدند. این گروهها عبارت بودند از: خاکورزی مرسوم (گروه 1)، کشاورزی حفاظتی (گروه 2)، پاشش کود مکانیزه (گروه Moreاین مطالعه با هدف بررسی بهرهوری انرژی مصرفی و آنالیز اقتصادی روشهای مختلف کشت هندوانه در استان فارس، کشور ایران انجام شد. روشهای تولید هندوانه به پنج گروه تقسیم شدند. این گروهها عبارت بودند از: خاکورزی مرسوم (گروه 1)، کشاورزی حفاظتی (گروه 2)، پاشش کود مکانیزه (گروه 3)، کاشت نیمه مکانیزه (گروه 4) و کاشت تمام مکانیزه (گروه 5). دادهها از 317 نفر از تولید کنندههای هندوانه از مناطق مختلف استان به صورت چهره به چهره جمعآوری شد. از شبکههای عصبی مصنوعی چند لایه برای مدلسازی جریان انرژی تولید هندوانه استفاده شد. نتایج نشان داد که بیشترین مصرف انرژی متعلق به روش کاشت تمام مکانیزه با ارزش MJ.ha-172/81317 و با بهرهوری kg.ha-1 61/0 و کارایی مصرف انرژی 17/1 بوده است. نتایج خوشهبندی با سه ورودی (منابع انسانی، ماشینآلات و سوخت دیزل) نشان داد که تفاوت بین گروههای 2 و 4 بیشتر از گروههای دیگر است. کمترین مصرف انرژی نیز برای گروه کشاورزی حفاظتی به میزان MJ.ha-1 86/78163 ، با بهرهوری kg.ha-1 64/0 و راندمان انرژی 22/1 برآورد شد. نتایج مدلسازی انرژی نشان داد که مدل ANN با ساختار 1-10-9 برای مدلسازی انرژی جریان انرژی این سیستم است. به طور کلی، نتیجهگیری شد که مدلهای شبکه عصبی مصنوعی می­تواند برای پیشبینی جریانهای انرژی هندوانه استفاده شود. از منظر اقتصادی نیز کمترین سود خالص متعلق به روش کاشت کاملاً سنتی به میزان 82784 هزار ریال در هکتار و بیشترین آن نیز متعلق به گروه کاشت تمام مکانیزه به میزان 87092 هزار ریال در هکتار محاسبه شد. Manuscript profile -
Open Access Article
795 - -Impact of Climate Variability on Cool Weather Crop Yield in Ethiopia
آرگا آدم بلای کاسا دگی گوشو ماجالیوا موانجالوThe research examined effect of climate variability on yield of the two dominant cool weather cereals (wheat and barley) in central highland and Arssi grain plough farming systems of Ethiopia using eight round unbalanced panel data (1994-2014). The stochastic frontier m MoreThe research examined effect of climate variability on yield of the two dominant cool weather cereals (wheat and barley) in central highland and Arssi grain plough farming systems of Ethiopia using eight round unbalanced panel data (1994-2014). The stochastic frontier model result revealed that production inputs for producing wheat and barley in the two farming system had significant effect. Crop season rainfall increment had negative and significant effect on technical efficiency of smallholders to produce wheat as to the model result. Technical efficiency of two crops responded differently for cropping season rainfall variability, in which wheat had negative and significant interaction with it while barley had positive. Given this, cropping season temperature had significant and positive effect on technical efficiency of both wheat and barley. Having this into account, yield of the two crops responded similarly for changes in production inputs like working capital, human labor and fertilizer. In general, rainfall inconsistency at the different stages of the production period had strong effect on yield of the two crops. Given this, the study forwarded an assignment to plant scientists in order to have further investigation on how the two crops responded differently to temperature variability. Manuscript profile -
Open Access Article
796 - Using DEA Models to Measure Energy Efficiency of Grape Production
Majid Namdari Hassan Ghasemi Mobtaker Mousa Rasouli -
Open Access Article
797 - ارزیابی پایداری بوم نظام های زراعی استان گلستان، ایران
مجید رستمی Hoda Mohammadiکشاورزی پایدار یک رویکرد جامع و مناسب برای تولید غذا، پوشاک، علوفه و سوخت مورد نیاز انسان است که نه تنها آسیبی به محیط زیست وارد نمی­سازد بلکه باعث تامین نیازهای جمعیت موجود و همچنین نسل­های بعدی خواهد شد و در عین حال به مفاهیمی همچون سلامت بوم­ نظامهای زراع Moreکشاورزی پایدار یک رویکرد جامع و مناسب برای تولید غذا، پوشاک، علوفه و سوخت مورد نیاز انسان است که نه تنها آسیبی به محیط زیست وارد نمی­سازد بلکه باعث تامین نیازهای جمعیت موجود و همچنین نسل­های بعدی خواهد شد و در عین حال به مفاهیمی همچون سلامت بوم­ نظامهای زراعی، عدالت اجتماعی و اقتصادی و سودآوری توجه دارد. بنابراین در هیچ کشوری مفهوم کشاورزی پایدار از توسعه پایدار تفکیک پذیر نیست. به منظور مطالعه پایداری بوم­نظامهای زراعی استان گلستان در دوره زمانی 1381 تا 1390 مطالعه حاضر انجام شد. داده­های مورد نیاز با استفاده از بانک­های اطلاعات آماری رسمی کشور جمع آوری شد. در هر سال ارزش عددی پایداری با استفاده از 21 شاخص مختلف محاسبه شد. از آنجا که شاخص­های مورد استفاده از لحاظ ماهیت و همچنین دامنه عددی بسیار با یکدیگر متفاوت بودند برای سهولت انجام مقایسه، همه شاخص­های محاسبه شده نرمال سازی شدند. بر اساس نتایج در طول دوره مورد مطالعه پایداری کشاورزی به صورت معنی­داری افزایش یافت. کمترین میزان پایداری در اولین سال دوره مطالعه (سال 1381) مشاهده شد در حالی که بیشترین میزان پایداری برای سال 1388 محاسبه شد و در سالهای بعدی میزان پایداری بوم­نظام­های زراعی به میزان اندکی کاهش یافت. مهمترین دلایل بهبود پایداری در سال­های انتهایی دوره مطالعه کاهش مصرف نهاده­های شیمیایی (آفت­کش­ها و کودهای شیمیایی)، افزایش کارایی مصرف آب و نیتروژن، افزایش عملکرد محصولات مختلف به ویژه عملکرد محصولات دیم و همچنین افزایش سطح زیر کشت گیاهان تثبیت کننده نیتروژن بودند. Manuscript profile -
Open Access Article
798 - تجزیه و تحلیل امرژی نظام کشت خیار گلخانهای منطقه سیستان
شیرعلی کوهکن احمد قنبری محمدرضا اصغری پور براتعلی فاخریدستیابی به پایداری کشاورزی و کاهش فشار زیست محیطی دو هدف عمده مدیریت آگرو اکوسیستمها در قرن حاضر است که عدم کارایی مناسب انرژی، آنرا با چالش مواجه نموده است. در این راستا در پژوهش حاضر تلاش شده یکی از مهمترین نظامهای کشت منطقه سیستان با استفاده از رهیافت تحلیل امرژی ا Moreدستیابی به پایداری کشاورزی و کاهش فشار زیست محیطی دو هدف عمده مدیریت آگرو اکوسیستمها در قرن حاضر است که عدم کارایی مناسب انرژی، آنرا با چالش مواجه نموده است. در این راستا در پژوهش حاضر تلاش شده یکی از مهمترین نظامهای کشت منطقه سیستان با استفاده از رهیافت تحلیل امرژی ارزیابی گردد. در این مطالعه تمام ورودیها اعم از ورودیهای تجدید پذیر شامل نور خورشید، باد و باران؛ تجدید ناپذیر شامل خاک؛ نهادهها و خدمات خریداری شده شامل ماشینآلات، سوختهای فسیلی، الکتریسیته، پلاستیک، تاسیسات، نیروی انسانی، کودهای شیمیایی نیتروژن، پتاسیم، فسفر، کودهای میکرو و سموم شیمیایی برای تولید خیار گلخانهای سیستان مورد ارزیابی قرارگرفت. نتایج مطالعه نشان داد کل امرژی تولید خیار گلخانهای برابر1018×094/1 امژول خورشیدی و بیشترین مقدار امرژی مصرفی به ترتیب مربوط به گازوئیل و نیروی انسانی با 1017×9/7 و 1017×92/1 امژول خورشیدی در هکتار بود. شاخصهای مهم امرژی شامل نسبت عملکرد امرژی، نسبت سرمایهگذاری امرژی، نسبت بارگذاری بر محیط زیست و شاخص پایداری به ترتیب 00/1، 2089، 34/4، 23/0 2 بدست آمد. بنابراین لازم است بهینهسازی مصرف نهادههای پر مصرف، کاهش فشار زیستمحیطی و افزایش پایداری از طریق تغییرات مناسب در ساختمان و سازههای گلخانه و افزایش کارایی مصرف انرژی در داخل گلخانه و نیز افزایش مکانیزاسیون کاشت، داشت و برداشت کشتهای گلخانهای برای توسعه کشت خیار گلخانهای در منطقه سیستان در برنامهریزیهای آتی مد نظر قرار گیرد Manuscript profile -
Open Access Article
799 - ارزیابی راندمان انرژی در ایستگاه های پمپاژ سامانه های آبیاری تحت فشار (مطالعه موردی: استان های قزوین و کرمانشاه)
حسن براتی محمدرضا خالدیان محمدحسن بیگلویی عاطفه پرورش ریزی -
Open Access Article
800 - بررسی کارایی و بهره وری انرژی در بخش کشاورزی نیوزیلند
مجتبی عباسیان سینا احمدزاده ماشینچی باسیل شارپتحقق توسعه پایدار بستگی به استفاده موثر از منابع انرژی دارد. بهره­وری و کارایی مصرف انرژی از جمله شاخص­های مهمی هستند که در تبیین رفتار ساختار مصرف انرژی بخش­های مختلف اقتصادی یک کشور، برای سیاستگذاری نقش مهمی را ایفا می­کنند. در میان بخش­های اقتصادی Moreتحقق توسعه پایدار بستگی به استفاده موثر از منابع انرژی دارد. بهره­وری و کارایی مصرف انرژی از جمله شاخص­های مهمی هستند که در تبیین رفتار ساختار مصرف انرژی بخش­های مختلف اقتصادی یک کشور، برای سیاستگذاری نقش مهمی را ایفا می­کنند. در میان بخش­های اقتصادی، بخش کشاورزی با توجه به اهمیت به میزان زیادی وابسته به مصرف انرژی به عنوان یک عامل موثر درتولیدات کشاورزی می­باشـد. لذادر این مقاله تلاش شده است ابتدا کارایی وبهره­وری انرژی در بخش کشاورزی محاسبه شده و سپس چگونگی ارتباط بین تولید و مصرف انرژی بخش کشاورزی نیوزیلند با استفاده از الگوی سیستم معادلات همزمان و روش حداقل مربعات دو مرحله­­ای و دادههای سالانه اقتصاد کشاورزی برای دوره زمانی 2017-1990 نیوزیلند مورد بررسی قرار گیرد. نتایج بدستآمده نشان میدهد کارایی مصرف انرژی در بخش کشاورزی نیوزیلند طبق شاخص کارایی انرژی اکثراً مطلوب بوده است. همچنین برآورد معادله انرژی نشان داد که ارزش افزوده بخش کشاورزی تاثیر مثبت بر رشد مصرف انرژی دارد. از دیگر متغیرهای مثبت تاثیر گذار می­توان به نیروی کار بخش کشاورزی و مصرف انرژی دوره قبل اشاره نمود. علامت منفی موجودی سرمایه در معادله بیانگر آن است کهﻫﺮ ﭼﻪ سرمایه گذاری در بخش کشاورزی اﻓﺰاﯾﺶ ﯾﺎﺑﺪ، در ﻧﺘﯿﺠﻪ مصرف انرژی ﮐﺎﻫﺶ ﻣﯽﯾﺎﺑﺪ. Manuscript profile -
Open Access Article
801 - عوامل موثر بر خودکارآمدی زنان روستایی شهرستان ملارد
ندا شریفی مریم امیدی مریم محمودیهدف اصلی این تحقیق توصیفی-همبستگی بررسی عوامل موثر بر خودکارایی زنان روستایی در شهرستان ملارد ایران می­باشد. جامعه آماری این تحقیق شامل ۲۳۶۳۶ نفر از زنان روستایی شهرستان ملارد می­باشد که از میان آنان ۶۱۳ نفر با روش نمونه گیری تصادفی طبقه­ای انتخاب شدند Moreهدف اصلی این تحقیق توصیفی-همبستگی بررسی عوامل موثر بر خودکارایی زنان روستایی در شهرستان ملارد ایران می­باشد. جامعه آماری این تحقیق شامل ۲۳۶۳۶ نفر از زنان روستایی شهرستان ملارد می­باشد که از میان آنان ۶۱۳ نفر با روش نمونه گیری تصادفی طبقه­ای انتخاب شدند. ابزار جمع آوری تحقیق، پرسشنامه­ای ساختارمند بود که روایی آن براساس نظر متخصصان و پایایی آن از طریق آزمون آلفای کرونباخ تایید گردید. تحلیل داده­ها از طریق نرم­افزار SPSS انجام شد. نتایج تحقیق بر اساس ضریب همبستگی پیرسون نشان داد که بین عوامل ترویجی-آموزشی، شرکت در فعالیت­های تصمیم­گیری خانوار، عوامل اجتماعی، پویایی فضایی، عوامل اقتصادی، عوامل مرتبط با عزت نفس و ظرفیت سازگاری با شوک­ها و استرس­ها با خودکارآمدی زنان روستایی ارتباط مثبت و معناداری وجود دارد. همچنین نتایج نشان داد که رابطه منفی و معناداری بین سن و خودکارآمدی زنان روستایی وجود دارد. تحلیل رگرسیون گام به گام نشان داد که عامل اقتصادی (R2 = 0.437)، عامل آموزشی و ترویجی (R2 = 0.507)عزت نفس (R2 = 0.539)و عوامل اجتماعی (R2 = 0.545) مهم­ترین متغیرها در پیشگویی متغیر وابسته (خودکارآمدی زنان روستایی) بودند. Manuscript profile -
Open Access Article
802 - ارائه تکنیکی جدید برای ارزیابی کارایی مزارع کشاورزی با کاربرد ترکیبی تحلیل پنجرهایی دادهها و شاخص مالم کوئیست مطالعه موردی: مزارع جو شهرستان خاش
علی سردارشهرکی ندا علی احمدیبخش کشاورزی به عنوان منبع اصلی در آمد اکثر کشورهای جهان در مجموعه فعالیت­های اقتصادی از اهمیتی کلیدی برخوردار است. ارتقاء بهرهوری و کارایی یکی از اساسیترین اهداف در دستیابی به رشد و شکوفایی اقتصادی بهشمار میآید. مساله افزایش بهرهوری از اصلیترین دغدغههایی است Moreبخش کشاورزی به عنوان منبع اصلی در آمد اکثر کشورهای جهان در مجموعه فعالیت­های اقتصادی از اهمیتی کلیدی برخوردار است. ارتقاء بهرهوری و کارایی یکی از اساسیترین اهداف در دستیابی به رشد و شکوفایی اقتصادی بهشمار میآید. مساله افزایش بهرهوری از اصلیترین دغدغههایی است که هر بنگاه اقتصادی تولید کننده کالا و خدمات با آن مواجه بوده و ضروری است بههنگام برنامهریزی برای توسعه هر بخشی جوانب مختلف آن در نظر گرفته شود. تحقیق حاضر با هدف تحلیل تغییرات بهرهوری عوامل تولید و اندازه­گیری کارایی فنی و همچنین بهره­وری زارعین شهرستان خاش با استفاده از تکنیک تحلیل پوششی پنجره­ای داده­ها است. بدین منظور وضعیت کارایی فنی، و بهره­وری زارعین طی دوره 95-1392 بررسی شد. با توجه به نتایج بدست آمده میانگین کارایی فنی بهره­برداران شهرستان خاش، 99/0می­باشد که نسبتاً بالا است که نشان­دهنده کارا بودن بهره­بردارن جو­کار می­باشد. همچنین با توجه به مقادیر شاخص بهره­وری مالم­کوئیست نشان می­دهد که میانگین تغییرات بهره وری کل برای شهرستان با مقدار 95/1 در طی دوره مذکور است. یکی از تأثیر­گذار­ترین عامل در تغییرات بهره­وری کل در کشاورزی، تغییرات تکنولوژی بوده است. پیشنهاد می­شود که برای افزایش کارایی و بهره­وری محصول جو در منطقه از فناوری جدید استفاده شود. Manuscript profile -
Open Access Article
803 - Production Efficiency of Farmers under National Fadama II Project in Oyo State, Nigeria
O.L Balogun A. Adeoye S.A Yusuf R.J Akinlade A. Carim-SanniThe study examines production efficiency of farmers under National Fadama-II Project in Oyo State Nigeria. Primary data were collected from two hundred and sixty-four farmers using multistage sampling technique. The analytical framework used for the study include: descr MoreThe study examines production efficiency of farmers under National Fadama-II Project in Oyo State Nigeria. Primary data were collected from two hundred and sixty-four farmers using multistage sampling technique. The analytical framework used for the study include: descriptive, infrastructure index, gross margin and stochastic frontier production function. Average infrastructural index in the area was 0.42. The gross margin for IDV was ₦445, 968.30 while for IUV for under-developed in Fadama villages is ₦357, 805.00. Gross margin was higher for Fadama II farmers than non Fadama-II farmers in IDV. The mean technical efficiency was 0.69 and 0.59 for Fadama and non-Fadama farmers respectively. The result showed that technical inefficiency of female Fadama-II farmers reduced by 0.19% while that of non-Fadama II farmers by 1.23%. Similarly, extension contact, marital status and infrastructural status reduced technical inefficiency of Fadama-II farmers by 2.8%, 0.3% and 2.6% respectively. Presence of infrastructure of Fadama-II project has imparted on efficiency of resource use among the beneficiary. There is therefore need to improve on Community Driven Development programme like Fadama-II and on coming Fadama-III project or any developmental project, so as to further impart more technical and economic knowledge to farmers. Manuscript profile -
Open Access Article
804 - Factors Affecting the Technical Efficiency Level of Inshore Fisheries in Kuala Terengganu, Malaysia
Nurul Aisyah Nalini Arumugam Mohd. Ariff Hussein Ismail LatiffThe objective of this study is to determine factors affecting the technical efficiency of the inshore fisheries in Kuala Terengganu. Data for the study was collected from a survey conducted between June and August 2007 where 100 fishermen in 14 villages were chosen by s MoreThe objective of this study is to determine factors affecting the technical efficiency of the inshore fisheries in Kuala Terengganu. Data for the study was collected from a survey conducted between June and August 2007 where 100 fishermen in 14 villages were chosen by stratified sampling. Data envelopment analysis (DEA) and Tobit analysis were employed to determine the technical efficiency level and factors influencing technical efficiency among the fishermen. Results of the study show that, most fishing units exhibit a low degree of technical efficiency. This implies that either fishing inputs were used inefficiently or insufficient inputs were used in fishing activities. The mean technical efficiency for the sample was estimated to be 55% for the peak season and 40% for the non-peak season. About 37% and 62% of the fishermen had less than 40% level of technical efficiency in peak season and non-peak season respectively. Management variables (planning, staffing and controlling) and demographic variables (size of horsepower, size of family and formal education) exert positive effects on technical efficiency of inshore fisheries in Kuala Terengganu. These findings suggest that there is much room for improvement in efficiency among a large segment of the inshore fishermen. With appropriate training and using more advanced technologies, fishermen’ level of technical efficiency can be raised. Manuscript profile -
Open Access Article
805 - Increasing the Effectiveness of the Russian Grain Market
Nazarova Varvara Khrabrova ValentinaConsidering the current upward drift in farm use all over the world, the Russian agro-food market has immense possibilities to create such economic conditions under which the farming sector could develop dynamically. The increase in the grain production is of crucial im MoreConsidering the current upward drift in farm use all over the world, the Russian agro-food market has immense possibilities to create such economic conditions under which the farming sector could develop dynamically. The increase in the grain production is of crucial importance for all agricultural branches. In this respect, the grain sector is Russia’s strategically significant economic segment. This paper presents both potential possibilities and risk insurance in the Russian grain market. The purpose of the article is to provide an economic appraisal and a holistic analysis of this industrial sector along with elaboration of guidelines, aimed at adjustment in this area and commercial process optimization with the view to speeding up the grain production in the Russian Federation. The practical implications of the paper lie in the fact that if the currently important problems are solved, there is a possibility of ensuring food security, stabilization and sustainable development in the agribusiness. Manuscript profile -
Open Access Article
806 - Comparative Analysis of Economic Efficiency between Low and High External Input Technology Agriculture in a Harsh Macroeconomic Environment of Imo State, Nigeria
S.O. AnyanwuThe study compared economic efficiency among smallholder farmers who practiced low external input technology [LEIT] and high external input technology [HEIT] agriculture in a harsh macroeconomic environment typified by inadequate fertilizer subsidy in Imo State, Nigeria MoreThe study compared economic efficiency among smallholder farmers who practiced low external input technology [LEIT] and high external input technology [HEIT] agriculture in a harsh macroeconomic environment typified by inadequate fertilizer subsidy in Imo State, Nigeria. Cross sectional data generated from 160 smallholder farmers randomly selected from 2 out of the 3 agricultural zones in Imo State were used. Profit function was used in analyzing the data. Results showed that the LEIT farmers achieved higher level of economic efficiency relative to their HEIT counterparts, although the difference is statistically non significant. It is therefore recommended that in the face of escalating costs of fertilizer, organic manure could be used. Appropriate policies should be put in place by the government to encourage livestock rearing so as to effectively utilize their bye product-organic manure. Household refuse or bio-degradable from the cities could be channeled to farms to serve as organic manure. Manuscript profile -
Open Access Article
807 - Comparative Analysis of Stochastic Frontier Partially non-parametric and Stochastic Frontier Parametric Methods Case Study: Measuring Cost Efficiency in Wheat Production in Iran
Ebrahim Moradi Mosayeb Pahlavani Ahmad Akbari Hossain Mehrabi BashrabadiMost research on performance evaluation of agricultural crops in Iran analyzes technical efficiency with estimation of stochastic production function. In this paper in spite of past research we survey cost efficiency with panel data. Information about input prices, yiel MoreMost research on performance evaluation of agricultural crops in Iran analyzes technical efficiency with estimation of stochastic production function. In this paper in spite of past research we survey cost efficiency with panel data. Information about input prices, yield and production cost per hectare collected for 28 provinces in 10 years and stochastic frontier cost function estimated with panel data in two methods, parametric stochastic frontier and partially non-parametric stochastic frontier. The results show that according to parameter significance and discretion of production structure parametric methodology is more suitable than non- parametric methodology. Land rent (price) had maximum influence and chemical fertilizer price had minimum influence on frontier production cost per hectare. Cost efficiency of wheat production in Iran is suitable and over 90 percent. Surveyed period Khuzestan province had maximum cost efficiency and Yazd province had minimum cost efficiency in wheat production. In whatever province where efficiency is low, agricultural education and knowledge needed to improve further. Manuscript profile -
Open Access Article
808 - تجزیه و تحلیل عملکرد مزارع با استفاده از منابع مختلف آب آبیاری: مطالعه موردی در یک منطقه نیمه خشک
حیات لیونبوی تارک بنابدلوآهاب عزیز حسیب عبدلعلی بوللیبهبود بهره وری تولید هدف اصلی از اقدام دولت برای جلوگیری از زیان بهره وری و افزایش درآمد کشاورزان است.بهبود بهره وری تولید هدف اصلی از اقدام دولت برای جلوگیری از زیان بهره وری و افزایش درآمد کشاورزان است. Manuscript profile -
Open Access Article
809 - ارزیابی شاخصهای کارایی مصرف آب در دشتهای منتخب استان فارس
حمیدرضا میرزایی خلیل مهدی اسفندیاری جواد شهرکی مرتضی یعقوبیهدف این مطالعه، بررسی شاخصهای مصرف آب محصولات زراعی و باغی است. دادهها از طریق پرسشنامه و مصاحبه با 164 کشاورز و با استفاده از دو روش نمونه گیری هدفمند و نمونه گیری تصادفی خوشهای چندمرحله ای گردآوری شد. در این راستا، شاخصهای هزینه استخراج آب و بازده ریالی Moreهدف این مطالعه، بررسی شاخصهای مصرف آب محصولات زراعی و باغی است. دادهها از طریق پرسشنامه و مصاحبه با 164 کشاورز و با استفاده از دو روش نمونه گیری هدفمند و نمونه گیری تصادفی خوشهای چندمرحله ای گردآوری شد. در این راستا، شاخصهای هزینه استخراج آب و بازده ریالی هر متر مکعب آب با دو روش اقتصادسنجی و مدیریتی محاسبه شد. قیمت سایهای و تولید ماده خشک هر متر مکعب آب نیز ارزیابی گردید. نتایج نشان داد که میانگین بازده ریالی هر متر مکعب آب 3875.4 ریال و هزینه هر متر مکعب آب چاه معادل 839.3 میباشد که چهار برابر بیشتر از ارزش برخی پروژههای توسعه منابع آبی است. در نهایت با توجه به نتایج اصلاح روابط مبادله قیمتی پیشنهاد شده است. در نهایت استفاده از سیاستهای کنترلی و مشارکت در تامین مالی پروژههای تغذیه مصنوعی سفرههای آب زیرزمینی توصیه میشود. Manuscript profile -
Open Access Article
810 - Analysis of Technical Efficiency of Smallholder Cocoa Farmers in Cross River State, Nigeria
Agom Damian Ila Susan Ben Ohen Kingsley Okoi Itam Nyambi N. InyangThe technical efficiency involved in cocoa production in Cross River State was estimated using the stochastic frontier production function analysis. The effects of some selected socio- economic characteristics of the farmers on the efficiency indices were also estimated MoreThe technical efficiency involved in cocoa production in Cross River State was estimated using the stochastic frontier production function analysis. The effects of some selected socio- economic characteristics of the farmers on the efficiency indices were also estimated. The study relied upon primary data generated from interviewing cocoa farmers using a set of structured questionnaire. A multi-staged random sampling technique was adopted in selecting two hundred (200) cocoa farmers from Ikom Agricultural Zone in the state. The data on the socioeconomic characteristics of the farmers were analyzed using descriptive statistics, while the stochastic production function, using the Maximum Likelihood Estimating (MLE) techniques was used in estimating the farmer’s technical efficiency and their determinants. Result of the analysis showed that farmers were experiencing decreasing but positive returns to scale in the use of the farm resources. The efficiency level ranged between 0.20 and 0.93 with a mean of 0.69. The result of the generalized Likelihood Ratio (LR) tests confirmed that the cocoa farmers in the area were technically inefficient. The major contributing factors to efficiency were age of farmers, farm size, and level of education, sex of farmer and age of the farms. The study observed that there is enough room to improve efficiency with the farmers’ current resource base and available technology and concluded that policies that would directly affect these identified variables should be pursued. Manuscript profile -
Open Access Article
811 - تجزیه و تحلیل کارایی انرژی و مدل سازی رابطه بین انرژی های ورودی و عملکرد گندم در ایران
Fakher kardoni Majid Jami-Al Ahmadi Mohammad Reza BakhshiWheat is the dominant cereal crop constituting the first staple food in Iran. This paper studies the energy consumption patterns and the relationship between energy inputs and yield for Wheat production in Iranian agriculture during the period 1986 – 2008. The res MoreWheat is the dominant cereal crop constituting the first staple food in Iran. This paper studies the energy consumption patterns and the relationship between energy inputs and yield for Wheat production in Iranian agriculture during the period 1986 – 2008. The results indicated that total energy inputs in irrigated and dryland wheat production increased from 29.01 and 9.81 GJ ha-1 in 1986 to 44.67 and 12.35 GJ ha-1 in 2008, respectively. Similarly, total output energy rose from 28.87 and 10.43 GJ ha-1 in 1986 to 58.53 and 15.77 GJ ha-1 in 2008, in the same period. Energy efficiency indicators, input–output ratio, energy productivity, and net energy have improved over the examined period. The results also revealed that non-renewable, direct, and indirect energy forms had a positive impact on the output level. Moreover, the regression results showed the significant effect of irrigation water and seed energies in irrigated wheat and human labor and fertilizer in dryland wheat on crop yield. Results of this study indicated that improvement of fertilizer efficiency and reduction of fuel consumption by modifying tillage, harvest method, and other agronomic operations can significantly affect the energy efficiency of wheat production in Iran. Manuscript profile -
Open Access Article
812 - تکنیکهای زراعی، چالشهای محیطی و کارایی فنی تولید سیبزمینی شیرین در ایالت آبیا در نیجریه
نمدی اهریم گلوری بن چندو استفن اونیوگوچا اوبون اسین امکا اوسوجو ملیسا اوکوارادستیابی به تولید موفقیتآمیز سیبزمینی شیرین درصورت استفادة بیرویه از نهادههای کشاورزی دشوار خواهد بود و باعث اتلاف و صدمات زیستمحیطی خواهد شد هم­چنانکه کشاورزی در ایالت آبیا با این مشکلات مواجه است. مسائل ناشی از مصرف نهادههای کشاورزی و پیامدهای آنها برای محیط Moreدستیابی به تولید موفقیتآمیز سیبزمینی شیرین درصورت استفادة بیرویه از نهادههای کشاورزی دشوار خواهد بود و باعث اتلاف و صدمات زیستمحیطی خواهد شد هم­چنانکه کشاورزی در ایالت آبیا با این مشکلات مواجه است. مسائل ناشی از مصرف نهادههای کشاورزی و پیامدهای آنها برای محیط زیست نیازمند مطالعهای بر روی شیوههای زراعی مناسب و کارایی فنی مزرعهای برای استفادة بهینه از منابع در تولید سیب زمینی شیرین در ایالت آبیا بود. دادههای این تحقیق از 156 زارع سیب زمینی شیرین به کمک روش نمونهگیری چندمرحلهای با استفاده از یک پرسشنامة ساختارمند جمعآوری شدند. سپس این اطلاعات توسط آمار توصیفی مانند میانگین، توزیع فراوانی نسبی و تحلیل مرزی تولید تصادفی تحلیل شدند. نتایج نشان داد که استفاده از کود غیرآلی (378/65 درصد) در سیستم تولید دیم با استفاده از سوزاندن مکرر بتهها (67/66 درصد) و استفاده از مقادیر پایین آهک (8/5 درصد) رایجترین شیوههای زراعی هستند که نتایجی چون آبشویی، شکنندگی خاک، فرسایش، سیلاب و اسیدی شدن خاک را در پی دارد. کشت مختلط (46/63 درصد) با ارقام بهبودیافتهای چون TIS 8164 (2/71 درصد) و TIS 0087 (1/64 درصد) اقداماتی برای مقابله با برخی چالشهای زیستمحیطیاند. برآورد درستنمایی بیشینه (MLE) حاکی از بازده به مقیاس 236/0 است که در حال کاهش میباشد. این موضوع نشان میدهد که افزایش اندازة مزرعه و مصرف کود میتواند به شکل معنیداری به ترتیب باعث افزایش متناسب کمتر از 06538/0 و 08142/0 در خروجی سیب زمینی شیرین بشود یا میتوان آن را با بهرة روی سرمایة استقراضی به اندازةکمتر از 004138/0 کاهش دهد. گاما (0403/0) کمتر از واحد و در سطح p < 0.05 معنیدار بود که نشان میدهد حدود 30/4 درصد ناهمخواهی بین خروجی مشاهدهشده و خروجی مرزی به خاطر عدمکارایی فنی کشاورزان سیب زمینی شیرین بود. ناهمخواهی گسترده در کارایی فنی کشاورزان بین 298/0 درصد تا 4/99 درصد متغیر بود و میانگین 1/47 درصد نشاندهندة نیاز به پر کردن این شکاف است. درنتیجه، به نظر میرسد کاهش اندازة خانوار، سابقة کشاورزی و منبعیابی مواد گیاهی از NRCRI یا IITA میتواند باعث افزایش عدمکارایی فنی کشاورزان بشود درحالیکه این عدمکارایی را میتوان با سن و سطح آموزش رسمی کشاورزان سیب زمینی شیرین در منطقه کاهش داد. به طور کلی، نتایج نشان میدهد که کاهش سوزاندن بتهها اما افزایش استفاده از آهک در کنار استفاده از افزودنیهای آلی به خاک و آبیاری اگر با کشاورزان جوان و آموزشدیده همراه شود میتواند باعث کاهش صدمات زیستمحیطی و همچنین افزایش کارایی فنی کشاورزان سیب زمینی شیرین در منطقه بشود. Manuscript profile -
Open Access Article
813 - اندازه گیری کارایی فنی و ریسک تولید گاوداری های شهرستان زابل
جواد شهرکی مصیب پهلوانی نسرین اوحدیهدف اصلی این مقاله برآورد کارایی فنی با استفاده از روش آنالیز مرزی تصادفی (SFA) و تحلیل پوششی داده­ها (DEA) و هم­چنین تأثیر نهاده­های بکار گرفته شده بر روی ریسک تولید گاوداری­های شهرستان زابل می­با­شد. برای این منظور اطلاعات از طریق تکمیل پرسشنام Moreهدف اصلی این مقاله برآورد کارایی فنی با استفاده از روش آنالیز مرزی تصادفی (SFA) و تحلیل پوششی داده­ها (DEA) و هم­چنین تأثیر نهاده­های بکار گرفته شده بر روی ریسک تولید گاوداری­های شهرستان زابل می­با­شد. برای این منظور اطلاعات از طریق تکمیل پرسشنامه در سال 1393-1392 جمع آوری گردید. نتایج نشان داد که که میانگین کارایی فنی گاوداری­ها با استفاده از روش SFA، 74/0 درصد و بکارگیری روش DEA و تحت بازدهی ثابت و متغیر نسبت به مقیاس بترتیب 55/0 و 63/0 درصد برآورد گردید. هم­چنین یک رابطه مستقیم و معنادار بین میزان تولید و متغیرهای سبوس و تعداد رأس گاو وجود دارد. برآورد عدم کارایی فنی حاکی از وجود رابطه­ای منفی و معنادار بین سن دامپرور و عضویت در تعاونی با عدم کارایی فنی است. نتایج ریسک تابع تولید نشان داد که شرکت در کلاس­های آموزشی ریسک را کاهش خواهد داد. در نهایت آموزش در رابطه با بکارگیری مصرف بهینه نهاده­ ها و بکارگیری مدیریت مناسب جهت افزایش میزان کارایی گاوداری­ها پیشنهاد شد. Manuscript profile -
Open Access Article
814 - ارزیابی کارایی فنی نخلستان های خرما با استفاده از رهیافت تحلیل پوششی داده های بوت استرپ (مطالعه موردی منطقه رودخانه بر ایران)
غلامرضا زمانیان مصطفی خواجه حسنیمنطقه رودخانه­بر با حدود 111 هزار اصله نخل کریته، یکی از مهم­ترین مناطق تولیدکننده محصول خرما در شهرستان رودان محسوب شده و درآمد مردم این منطقه تقریباً بطور مستقیم و یا غیر مستقیم از تولید این محصول تأمین می­گردد. در نتیجه کارایی تولید این محصول برای باغدارا Moreمنطقه رودخانه­بر با حدود 111 هزار اصله نخل کریته، یکی از مهم­ترین مناطق تولیدکننده محصول خرما در شهرستان رودان محسوب شده و درآمد مردم این منطقه تقریباً بطور مستقیم و یا غیر مستقیم از تولید این محصول تأمین می­گردد. در نتیجه کارایی تولید این محصول برای باغداران این منطقه از اهمیت ویژه­ای برخوردار است. به همین دلیل این مطالعه با استفاده از تحلیل پوششی داده­های نهاده محور بوتاسترپ و با نمونه گیری از 50 نخلستان تولیدکننده خرمای کریته منطقه رودخانه­بر در سال 1392، به ارزیابی کارایی فنی نخلستان­های این منطقه می­پردازد. نتایج بدست آمده بیانگر آن است که 64 درصد تولیدکنندگان خرمای این منطقه با کارایی کمتر از 50 درصد فعالیت نموده و تنها 14 درصد از نخلستان­ها به صورت کارآمد فعالیت می­نمایند. با توجه به نتایج بدست آمده پیشنهاد می­شود با حمایت جهاد کشاورزی منطقه از فعالیت­های ترویجی، مراکزی جهت تشکیل کلاس­های آموزشی برای باغداران این منطقه دایر شود؛ تا در این مراکز علاوه بر آموزش، فرصتی برای اشتراک گذاری تجربیات باغداران موفق و خبره در جهت تخصیص مناسب­تر نهاده­ها در فعالیت­های سایر باغدارن بوجود آید. Manuscript profile -
Open Access Article
815 - اندازه گیری کارایی فنی مزارع کلزا و عوامل موثر بر آن در شهرستان تبریز، ایران
سپیده رستمی دولت آبادی محمد قهرمان زادههدف از مطالعه حاضر اندازه­گیری کارایی فنی مزارع کلزا در شهرستان تبریز و بررسی عوامل موثر بر آن بود. داده­های مورد نیاز از طریق تکمیل پرسشنامه از کلزاکاران شهرستان تبریز در سال زراعی 93-1392 با استفاده از روش نمونه­گیری تصادفی طبقه­بندی شده از 157 نمونه ت Moreهدف از مطالعه حاضر اندازه­گیری کارایی فنی مزارع کلزا در شهرستان تبریز و بررسی عوامل موثر بر آن بود. داده­های مورد نیاز از طریق تکمیل پرسشنامه از کلزاکاران شهرستان تبریز در سال زراعی 93-1392 با استفاده از روش نمونه­گیری تصادفی طبقه­بندی شده از 157 نمونه تصادفی بدست آمد. کارایی فنی کلزاکاران نیز از طریق رهیافت تابع تولید تصادفی صورت گرفت. نتایج کشش تولید نهاده­ها بیانگر آن است که تمامی این نهاده­ها در ناحیه دوم اقتصادی مصرف می­شوند. علاوه بر آن، بیشترین (504/0) و کمترین (095/0) کشش تولید به ترتیب مربوط به نهاده آب و سطح تحصیلات است. نتایج مربوط به محاسبه کارایی فنی نیز موید آن است که کمترین و بیشترین میزان آن 25 و 95 درصد با میانگین 80 درصد می باشد. لازم به ذکر است که بیشترین میزان کارایی فنی نیز در مزارع کلزا با سطح زیر کشت 3-4 هکتار مشاهده شده است. هم­چنین، متغیرهای سطح تحصیلات، تعداد دوره­های آموزشی و سطح زیرکشت اثز معنی­دار و منفی و سن کشاورز اثر مثبت و معنی داری برعدم کارایی فنی دارد. مطابق یافته­های تحقیق، توصیه می­گردد آموزش بیشتر کلزاکاران در خصوص مصرف بهینه نهاده­ها به همراه ارتقا سطح دانش آنها بیشتر مد نظر دولت قرار گیرد. Manuscript profile -
Open Access Article
816 - Evaluation of petrographic number methods efficiency in quality determination of some carbonates rocks
Mojtaba Kamani Rassoul Ajalloeian -
Open Access Article
817 - Analysis of the legislative and supervisory performance of different periods of the Islamic Parliament using two-stage data envelopment analysis
Ahmad Ghanbarian Boroojeni kambiz Shahroodi Alireza Amirteimoori mehrdad Goodarzvand CheginiRecognizing the significance of decisions and decision-making by the Islamic Parliament and their impact on human societies, it is crucial to evaluate the efficiency of different parliamentary terms, identify strengths and weaknesses, and determine influential factors f MoreRecognizing the significance of decisions and decision-making by the Islamic Parliament and their impact on human societies, it is crucial to evaluate the efficiency of different parliamentary terms, identify strengths and weaknesses, and determine influential factors for enhancing future performance. The reformation of the decision-making process is essential as it will result in sound decisions and elevate the political and economic conditions of the country. Thus, the objective of this research is to propose a two-stage data envelopment analysis (DEA) model to evaluate the performance of various periods of the Islamic Parliament (from the third to the tenth period) in terms of legislation and supervision. In the proposed approach, each term of the Islamic Parliament is considered a two-stage decision-making unit (DMU), with legislation as the first stage and supervision as the second stage. The results suggest that, generally, 50% of the periods are efficient, while the remaining 50% are inefficient. Specifically, Periods C, D, G, and H are identified as efficient periods across both dimensions. However, Period B, in terms of overall performance and the supervision dimension, and Period A, within the legislative dimension, are pinpointed as the most inefficient periods. Additionally, an analysis of the average efficiency scores in legislation and supervision underscores that, overall, the Islamic Parliament has demonstrated superior performance in legislation compared to supervision during various periods. This disparity in performance between the supervisory and legislative aspects has led to higher inefficiencies among the periods characterized as inefficient. Manuscript profile -
Open Access Article
818 - Developing two 4-parameter and 5-parameter exponential smoothing methods with multiplicative trend for demand forecasting
Sobhan Davarpanah Reza Yousefi Zenouz Amir-Reza Abtahi -
Open Access Article
819 - Allocation models for DMUs with negative data
Ghasem Tohidi Maryam Khodadadi -
Open Access Article
820 - Ranking efficient DMUs using minimizing distance in DEA
Shokrollah Ziari Sadigh Raissi -
Open Access Article
821 - Combining data envelopment analysis and multi-objective model for the efficient facility location–allocation decision
Jae-Dong Hong Ki‑Young Jeong -
Open Access Article
822 - Shapley value-based multi-objective data envelopment analysis application for assessing academic efficiency of university departments
Stephen Lloyd N. Abing Mercie Grace L. Barton Michael Gerard M. Dumdum Miriam F. Bongo Lanndon A. Ocampo -
Open Access Article
823 - Scaling production and improving efficiency in DEA: an interactive approach
Wilhelm Ro¨dder Andreas Kleine Andreas Dellnitz -
Open Access Article
824 - Impact of information technology on productivity and efficiency in Iranian manufacturing industries
Amir Gholam Abri Mahmoud Mahmoudzadeh -
Open Access Article
825 - Network DEA: an application to analysis of academic performance
Mohammad Ali Saniee Monfared Mahsa Safi -
Open Access Article
826 - Assembly line performance and modeling
Arun B. Rane Vivek K. Sunnapwar -
Open Access Article
827 - Finding stability regions for preserving efficiency classification of variable returns to scale technology in data envelopment analysis
P . Zamani M . Borzouei -
Open Access Article
828 - Ergonomics and simulation-based approach in improving facility layout
Jocelyn D. Abad -
Open Access Article
829 - An alternative transformation in ranking using l1-norm in data envelopment analysis
S. Ziari -
Open Access Article
830 - A full ranking method using integrated DEA models and its application to modify GA for finding Pareto optimal solution of MOP problem
S Razavyan GH Tohidi -
Open Access Article
831 - Non-discretionary imprecise data in efficiency Measurement
S Razavyan G Tohidi -
Open Access Article
832 - An efficiency measurement model in fuzzy environments, using data envelopment analysis
F Molavi M.B Aryanezhad M Shah Alizadeh -
Open Access Article
833 - Practical common weights MOLP approach for efficiency analysis
A Makui A Alinezhad M Zohrehbandian -
Open Access Article
834 - Control chart based on residues: Is a good methodology to detect outliers?
Jean Paulo Guarnieri Adriano Mendonça Souza Luciane Flores Jacobi Bianca Reichert Claudimar Pereira da Veiga -
Open Access Article
835 - Estimating multi-period global cost efficiency and productivity change of systems with network structures
S. Tohidnia G. Tohidi -
Open Access Article
836 - Modeling and solving multi-skilled resource-constrained project scheduling problem with calendars in fuzzy condition
Sama Ahmadpour Vahidreza Ghezavati -
Open Access Article
837 - Evaluating the quality level of services provided by the Regional Information Center for Science and Technology (RICeST) using the Six Sigma methodology.
Ali Bairanvand Mohamad Ebrahim Samiei Sareh RahmanianObjective: The aim of this study was to evaluate the quality level of services provided by the Regional Information Center for Science and Technology (RICeST) using the Six Sigma methodology. Methodology: The studied population in this research includes the users of (R MoreObjective: The aim of this study was to evaluate the quality level of services provided by the Regional Information Center for Science and Technology (RICeST) using the Six Sigma methodology. Methodology: The studied population in this research includes the users of (RICeST). 120 users in this center have been chosen as the samples by a simple random way. Data collection tool in this study was the LibQUAL Questionnaire. Using this questionnaire, the gap between the customers' expectations and perceptions was identified and analyzed. Data were analyzed using the statistical software "Spss" and the mean and standard deviation were calculated for the obtained data. In each of the evaluated cases, the calculated standard deviation was compared with the sigma level in the output table for the types of sigma in order to specify the qualitative efficiency of services. By this way, the error rate in each of the provided services has been determined. Findings: the findings showed the employees in the Regional Center for the Science and Technology Information have been able to meet the users' minimum expectations in this center in all cases except the option "The courteous staff"; and have allocated the efficiency 50% which is equal to 500,000 errors per million. In the other words, the average rate was true in all raised options about the staff in this center. The efficiency, 69. 20 percent, obtained from the users view about the quality of existing resources in this center represents their relative satisfaction with the current condition. Only about the option "the presence of a website in the center" the level of users' expectations has been equal to the actual level and the efficiency 99. 97 percent been achieved. The quality of library space at the actual level has been lower than the maximum level of users' expectation, but it has been higher than the level of users' minimum expectations. The efficiency 69. 20 percent about the center space indicates 308,000 errors per million. In this case, it has been far from achieving the desired level or the maximum users' expectations. Conclusion: The results showed that in most cases, Regional Information Center for Science and Technology require to increase the actual level of service. Near the maximum level of expectations with actual service, will result to increase efficiency service quality and the Users ‘satisfaction. Manuscript profile -
Open Access Article
838 - Policy-making Model in Architecture Education context with an analytical approach to Teamwork (Case Study: Architecture Student in Anhalt University, Germany)
Hossein Aminpour Pirjal Farah Habib Zahra Sadat Zarabadi Vahadane FuladiThe aim: The aim of the present study is an analytical approach to teamwork (TW) in making maquettes by architecture students to make a policy-making model in the architecture education context.The research method: The research method is applied according to the purpose MoreThe aim: The aim of the present study is an analytical approach to teamwork (TW) in making maquettes by architecture students to make a policy-making model in the architecture education context.The research method: The research method is applied according to the purpose and based on the data collection, it is descriptive and a case study. First, the research background in the fields of policy-making in higher education, teamwork, and architecture education was reviewed and the factors that influence each were evaluated. The statistical population of this research is students of the workshop and architectural design studio at Anhalt University in Dessau, Germany, which is affiliated with the Bauhaus Institute.Findings and Conclusion: Due to the current construction industry in Iran, a high unemployment rate is observed in this context. The need to improve skills and apply the training is very evident. The problem from teamwork's point of view in teaching and making maquettes was examined as one of the important causes of this unemployment. The solution is in the policy-making in higher education. The expertise and professional work of architecture is based on teamwork and preparing students to do teamwork and learn in this matter has a positive effect on improving the performance and efficiency of future architects. Manuscript profile -
Open Access Article
839 - Feasibility study of the impact of the Governance Gap on the Efficiency of the Political System from the Perspective of Political Stability; Case study of the Islamic Republic of Iran
Shararaeh Abdolhoseinzadeh Ali AliHosseini Siamak Bahrami -
Open Access Article
840 - China’s Energy Strategy on the Middle East
Alireza Rezaei Ghasem Toraby Ghasem Rezaei -
Open Access Article
841 - Investigating the relationship between governance indicators and shadow economy in Iran
Mahdi Mansouri Bidkani عباس علی ابونوری Ahmad Tavakoli Marjan Daman keshidehThe shadow economy (SE) is a pathological normalcy, not only in developing countries but also in developed ones, causing disagreeable distortions in the real economy. The causes of the shadow economy can be traced back to actors who operate outside the formal sector to MoreThe shadow economy (SE) is a pathological normalcy, not only in developing countries but also in developed ones, causing disagreeable distortions in the real economy. The causes of the shadow economy can be traced back to actors who operate outside the formal sector to reap the benefits. The way these actors work can both affect the quality of governance and affect it. The right to comment and accountability, political stability and non-violence, government efficiency, the quality of governance laws, the rule of law and the control of corruption are indicators of governance evaluation in this regard. Therefore, in this study, using Hishao causality method, the causal relationship between these indicators with the shadow economy in Iran during the years 1995 to 2017 has been investigated. Findings show that government efficiency, rule of law and control of corruption have a two-way relationship with the shadow economy and the indicators of the right to comment and accountability, political stability and non-violence and the quality of governance laws have a one-way relationship with it. Manuscript profile -
Open Access Article
842 - Synthesis and characterization of magnetic graphene nano-adsorbent stabilized on polymer nylon 6 and its application for removal of lead (II) ions contaminant form aqueous solution
سید یدالله میر نظامی مهران دولو محمودرضا سهرابی مرتضی خسروی فرشته مطیعیIn this research, the magnetic graphene nanoparticle )GM( was synthesized and stabilized on nylon-6. The purpose of its synthesis is to remove lead ions )II( contaminant from the aqueous solution. The prepared nanocomposite was characterized using X-ray diffraction anal MoreIn this research, the magnetic graphene nanoparticle )GM( was synthesized and stabilized on nylon-6. The purpose of its synthesis is to remove lead ions )II( contaminant from the aqueous solution. The prepared nanocomposite was characterized using X-ray diffraction analysis )XRD(, scanning electron microscope )SEM(, Fourier transform infrared spectrometry )FT-IR(, and surface area determination )BET(. In order to optimize the removal of Pb)II( ions from the aqueous solution the graphene was converted from two-dimensional to three-dimensional structure by using nylon-6 as substract to increase the surface area of the graphene and consequently increase the adsorbent efficiency. Another advantage of the absorbent is its magnetic effect that allows adsorption of the contaminant and its easy separation by an external magnet. The influence of experimental parameters such as initial solution pH, contact time, adsorbent dosage, concentration of lead ions (II) solution, and solution temperature on the removal efficiency were investigated. At optimal conditions the removal efficiency of lead ions (II) achieved by adsorbent was 95%. Manuscript profile -
Open Access Article
843 - Synthesis of GO-Cu-BTC graphene oxide at the Green and in situ under solvent-free conditions by the mechanochemical methods and evaluation of kinetic and isotherm properties of cadmium removal
hamideh hamzeh ali sara mashkouri beheshteh sohrabi nazari mohammad reza naimi jamal leila panahiIn this research, GO-Cu-BTC nanocomposite was prepared at the green, in situ under solvent-free by using the mechanical method without purification. XRD and FESEM demonstrated the structure of nanocomposite. In order to investigate the application of the nanocomposites MoreIn this research, GO-Cu-BTC nanocomposite was prepared at the green, in situ under solvent-free by using the mechanical method without purification. XRD and FESEM demonstrated the structure of nanocomposite. In order to investigate the application of the nanocomposites synthesized in green conditions, cadmium heavy metal removal was studied. Here, kinetic and isotherm studies of metal removal were performed and the concentration of cadmium ions was measured by atomic absorption spectrometry. The results showed that the adsorption capacity of the cadmium by the nanocomposite adsorbent was dependent on parameters such as pH and reaction time. Optimal conditions showed that 6 mg of nanocomposite removed 94% of water-soluble cadmium at pH 8. The results showed that the isotherm data followed the Langmuir model. In this study, it is found that GO-Cu-BTC has a high ability to adsorb cadmium and can be used as a low-cost adsorbent. Manuscript profile -
Open Access Article
844 - Comprehensive Study of the Crop Water Productivity in Bushehr Province, Iran
Hamzehali Alizadeh Bijan Nazari Abdolmajid Liaghat -
Open Access Article
845 - The Relationship between Methods of Measuring Intellectual Capital and Investment Efficiency
Yadollah Nourifard Abdolreza ShahbaziIntellectual capital is considered by many scholars as an important resource in organizations, as well as for the impact that can have on corporate performance. In this research, the relationship between methods of measuring intellectual capital and investment eff MoreIntellectual capital is considered by many scholars as an important resource in organizations, as well as for the impact that can have on corporate performance. In this research, the relationship between methods of measuring intellectual capital and investment efficiency has been investigated. The research, in terms of target type is a part of applied research and the method of research, in terms of substance and content, is a correlation research. The research framework is deductive-inductive reasoning. Research hypotheses have been analyzed based on information gathered from 141 companies accepted in the Tehran Stock Exchange during the period from 2009 to 2015. The results of the hypotheses test showed that there is no significant relationship between intellectual capital calculated using conventional value method and investment efficiency and the existence of a significant and positive relationship between the intellectual capital calculated by the coefficient of intellectual-Pulic value added and the calculated intellectual capital calculated using the intangible value coefficient with more investment and there is a significant and negative relationship between the intellectual capital calculated by the coefficient of intellectual-Pulic value and intellectual capital calculated using the intangible value coefficient with low capitalization Manuscript profile -
Open Access Article
846 - Effect of In-Service Education Courses on Staff’s Efficiency of Islamic Azad University South Tehran Branch based on Kirk Patrick Model
H. Rezazadeh Bahadoran A. Khosravi babadi S. Toontab HaqiqiThis study reviews effect of in-service education courses on staffs' efficiency of Islamic Azad University South Tehran Branch based on Kirk Patrick model and the main question of this study is mentioned as follow: whether in-service education courses is effective on MoreThis study reviews effect of in-service education courses on staffs' efficiency of Islamic Azad University South Tehran Branch based on Kirk Patrick model and the main question of this study is mentioned as follow: whether in-service education courses is effective on staffs' efficiency of Islamic Azad University South Tehran Branch based on Kirk Patrick? In the way of main question of this study, the major aim is effect of in-service education courses on staffs' efficiency based on Kirk Patrick model. It is worth mentioning that research plan of this study is placed in descriptive studies and is field finding (measurement) type. The statistic community of the study consists of the whole staffs of Islamic Azad University South Tehran Branch (667 peoples) and 247 of them were selected as suitable sample volume by use of stage-random sample method.The used tools for this study are researcher made questionnaire by 30 questions in three categories, reaction, learning, behavior (change of behavior). They were measures in five Likert spectrum and its reliability coefficient is 95%. For analyzing obtained data from questionnaire, we used statistical model of T-one group, T in two independent groups and one-way variance and finally analyzing of data showed that the effect of in-service education courses on staffs' efficiency based on Kirk Patrick model in the level of a =0.01 was higher than middle level and consist of high effect. Manuscript profile -
Open Access Article
847 - Evaluation of the Performance of the Country's Provinces of Consumption Cooperative (Using Linear Programming Method)
J, Rezaei H. Akrami Z. RezaeiIn this study, the performance of the country's provinces has been evaluated using linear planning method. For this purpose, using non-parametric technique that is based on mathematical programming methods, and in particular Data Envelopment Analysis (DEA), provinces MoreIn this study, the performance of the country's provinces has been evaluated using linear planning method. For this purpose, using non-parametric technique that is based on mathematical programming methods, and in particular Data Envelopment Analysis (DEA), provinces of the country have been classified and ranked. In this research, according to the input and output of cooperative agencies, taking in 30 provinces in 2009, their efficiency has been evaluated with the assumption of constant and variable return to scale. The results show that considering the first assumption, provinces of Zanjan, North Khorasan, kohkiloyeh and Boyerahmad, Sistan and Baluchestan and Lorestan, have the highest efficiency among the country's provinces. Also, having the second assumption into the account, the provinces of Fars, Khorasan Razavi, Tehran and Qom, Isfahan would be efficient. Finally, regarding the patterns being kohkilouyeh and Boyerahmad and based on the findings of this study can be said that in order to increase efficiency of the non-efficient provinces, kohkilouyeh and Boyerahmad should be considered as the pattern. Manuscript profile -
Open Access Article
848 - The Impact of Financial Reporting Quality and Debt Maturity on the Investment Efficiency
Yadollah Noorifard Hassan Chenari BouketThis study investigates the impact of financial reporting quality and debt maturity on the investment efficiency in the companies registered in Tehran Stock Exchange during the years between 2009 to 2013. In this research, for measuring the quality of financial reportin MoreThis study investigates the impact of financial reporting quality and debt maturity on the investment efficiency in the companies registered in Tehran Stock Exchange during the years between 2009 to 2013. In this research, for measuring the quality of financial reporting, we have used Francis et al. (2005) model, and for debt maturity date of short-term debt ratio to total debt and investment efficiency, we have applied Biddle et. al. (2009) model. Data analysis of this research was conducted using multiple linear regression and concatenated data. The findings of the first hypothesis test have demonstrated that there is a significant relevance between financial reporting quality and efficiency of investment. The findings of the second hypothesis have shown that there is a significant relevance between the financial reporting quality and the investment efficiency. In other words, we could reach to the conclusion that the improvement of the quality of financial reporting and the reduction of debt maturity due to reduced information asymmetry and prolonging the period of debt maturity contracts and strengthening of creditors monitoring on senior managers and the whole company operation, leads to increased efficiency of investment. Manuscript profile -
Open Access Article
849 - The Effect of Payment System Based on Performance on the Efficiency of Medical Staff (Case Study: Tehran Shahid Chamran Hospital)
Fatemeh Sarraf Majidi TakhtThe aim of the study was to investigate the effect of payment system based on performance on the efficiency of medical staff of Shahid Chamran Hospital in Tehran. The research method was descriptive, causal and practical. In order to collect research data, the classifie MoreThe aim of the study was to investigate the effect of payment system based on performance on the efficiency of medical staff of Shahid Chamran Hospital in Tehran. The research method was descriptive, causal and practical. In order to collect research data, the classified financial information of the hospital was used. The statistical population of the study consisted of the staff of Tehran Shahid Chamran Hospital and census sampling method. The hospital data were categorized in order to collect the data. The statistical population of the study consisted of all staff members of Shahid Chamran Hospital and census sampling method. To analyze the data, the collected information was first transferred to the Excel spreadsheet and after organizing and performing the necessary calculations, SPSS software was used to analyze the data. Based on the results, the payment system based on performance has a significant effect on both income and costs of medical staff. Considering that in hospitals, as in other organizations, human being plays an essential role as the main axis of the organization, and employees are employed in accordance to governmental laws and regulations, inadequate salary or unfairness, and the inefficiency of the payment system will cause problems. Manuscript profile -
Open Access Article
850 - Estimating the Efficiency of Banks by DEA Approach and Investigating its Relationship with Financial Ratios
Fatemeh Mesgarpour Amiri Naser Yadollah zadeh TabariThe evaluation of performance of banks due to its crucial role in most economic activitiesand health maintenance of financial markets and economic conditions has always been considered On the other hand, because of the responsibility of DEA models - especially in d MoreThe evaluation of performance of banks due to its crucial role in most economic activitiesand health maintenance of financial markets and economic conditions has always been considered On the other hand, because of the responsibility of DEA models - especially in detecting and determining the efficiency of banks has led to the use of the above-mentioned models is extensive. The goal of this article is to offer DEA for evaluating the performance of banks. Efficient and inefficient banks have been identified and finally, for the inefficient banking units the reference model has been introduced. In addition, the relationship between financial ratios and efficiency has been studied. The results show that 9 of the 20 units were efficient and the rest were inefficient. 8 financial ratios are presented: capital adequacy ratio, profitability ratios, management ratio and the asset quality ratio had the most direct relationship with performance. Manuscript profile -
Open Access Article
851 - A Comparative Study of the Efficiency of Insurance Companies in Iran and MENA Countries
Sousan Shokoohigol Ali DehghaniThe critical role and status of the insurance industry in the modern economy is inevitable. In recent years, particular attention has been paid to the efficiency of insurance companies in Iran. In the sixth program policies, this issue has also been emphasized. A brief MoreThe critical role and status of the insurance industry in the modern economy is inevitable. In recent years, particular attention has been paid to the efficiency of insurance companies in Iran. In the sixth program policies, this issue has also been emphasized. A brief review of the indicators of the level of insurance penetration, insurance density and the percentage of the total insurance premiums of the world indicate that so far this industry has not achieved its status in the national economy. The first step in the development of insurance is to consider whether insurance companies in Iran, with regard to their resources, are efficient? To this end, insurance industry of Iran and other countries of the MENA were examined. In this study, to measure technical efficiency, non-parametric method of data envelopment analysis and parametric method of stochastic boundary function estimation - to identify the factors affecting the efficiency of insurance companies - and non-parametric method adjustment have been used. Based on the results, the growth of GDP per capita and technical reserves has a positive and significant effect on insurance industry efficiency and the insurance industry of Iran has the highest efficiency among MENA countries Manuscript profile -
Open Access Article
852 - Relationship of teacher’s self-efficacy and student’s motivational beliefs; the mediating role of teaching quality
Ashraf Sadat Mousavi Fereshte HejaziThis study aimed to investigate the relationship between Teacher’s self-efficacy and student’s motivational beliefs; with the mediating role of teaching quality. The statistical population of this study was active schools in 19 educational districts of Tehra MoreThis study aimed to investigate the relationship between Teacher’s self-efficacy and student’s motivational beliefs; with the mediating role of teaching quality. The statistical population of this study was active schools in 19 educational districts of Tehran. 250 students and 50 teachers were selected by using a multi-stage random sampling method. Research instruments included the Teacher Self-efficacy Scale (Schwarzer, Schmitz & Daytner 1999), the Class Management and Cognitive Activation Scale (Borisa & Kimb, 2020), the Supportive Climate Questionnaire (Williams & Deci, 1996), the Student Self-Efficacy and Intrinsic Motivation Scale (Pintrich, Smith, Garcia & Mckeachie, 1993). Data were analyzed by the Pearson correlation coefficient and structural equation modeling. Findings showed that there is a positive relationship between teacher’s self-efficacy and the student’s motivational beliefs. Also, the path coefficient in the effect of the teacher’s self-efficiency on the student’s self-efficacy and intrinsic motivation was positive. Teacher’s self-efficiency also was effective in student’s motivational beliefs through components of teaching quality (class management and supportive climate). Cognitive activation has a mediating role between the teacher’s and student’s self-efficiency. These findings showed the importance of the role of teacher’s self-efficacy, which impresses the quality of teaching and student’s motivational beliefs, directly and indirectly (through the quality of teaching’s components). Findings can be explained based on Bandu- ra’s social-cognitive theory which argues that persons with higher self-efficacy have better performance. In other words, a teacher’s expectations and his/her trust in his/her own abilities are reflected in achieving teaching goals, which in turn leads to improving student’s self-efficiency and intrinsic motivation. The findings implicated the importance of teacher’s personal development and the critical role of teacher training centers in training and choosing teachers. Manuscript profile -
Open Access Article
853 - Effect of baffles on the flow and hydraulic efficiency of settling tanks by 2D numerical model
M. H. Najafi Enferadi M. Mahdavi E. Rahimzade AsbfroushanIn this research the effect of baffle on hydraulic efficiency of settling basin was investigated by applying two-dimensional numerical model. In these experiments, a steady state for water flow is assumed and for simulating the flow disturbances and also for examining t MoreIn this research the effect of baffle on hydraulic efficiency of settling basin was investigated by applying two-dimensional numerical model. In these experiments, a steady state for water flow is assumed and for simulating the flow disturbances and also for examining the turbulence sphere, the standard (k-ε) model is used. The present study assessed the baffle effects with regard to the submergence depth and its distance from inlet flow. In order to explore the depth of submergence two depths (25 & 50 percent of basin depth) and for its optimal location, two positions (14 & 36 percent of inlet installment) were defined. The results indicated that the depth of submergence and baffles location in the basin can have a determining influence on the efficiency and the operation of settling basin. These results also showed that when the baffle is used correctly, the inlet jet available in the basin is restrained effectively. However, by exploiting in a wrong direction it can have reverse effect and make the condition even worst. The results also showed that by using 25% basin depth submergence and a distance of 14 % of installation entrance, entrance flow jet was very well suppressed and the flow became calm and had a more uniform distribution. Manuscript profile -
Open Access Article
854 - روش ارزیابی پتانسیل بهبود کارایی برای سیستم های گرمایش منطقه ای با تمرکز بر پمپ های سانتریفیوژ با سرعت متغیر
Egils Dzelzitis Deniss Pilscikovs -
Open Access Article
855 - تحلیل اگزرژی خنک کننده تبخیری برای مصرف بهینه انرژی در شرایط مختلف آب و هوایی
معین فرهانی هادی پاسدار شهری -
Open Access Article
856 - طراحی هیدرودینامیکی پروانه سری با چرخش معکوس برای کشتی ها
حسن قاسمی رویا شادمانی -
Open Access Article
857 - Maximum Power Point Tracking Methods Used in Photovoltaic Systems: A Review
Ali Moghassemi Shayan Ebrahimi Javad Olamaei -
Open Access Article
858 - In Vitro Evaluation of Optimized Diphtheria and Tetanus Toxoids Loaded Alginate Nanoparticles
Simin Hosseini Mojtaba Noofeli Mahrooz Dezfulian Hamidreza Goudarzi Zahra Salehi NajafabadiBackground and objective: Diphtheria and tetanus vaccine contains a high quantity of aluminum as an adjuvant potential to affect the nervous system, particularly in infants with kidney disease. Thus, the focus of this study was on in vitro preparation and evaluation to MoreBackground and objective: Diphtheria and tetanus vaccine contains a high quantity of aluminum as an adjuvant potential to affect the nervous system, particularly in infants with kidney disease. Thus, the focus of this study was on in vitro preparation and evaluation to co-deliver DT toxoids by loading on alginate nanoparticles (NPs) as a non-toxic substance without antigenicity.Materials and Methods: Using the gel-ionization method, alginate NPs samples were prepared and characterized in respect of size, zeta potential, and polydispersity index (PDI). The effects of alginate concentrations, calcium chloride, and Poly Lysine and the stirring time and speed in addition to the loading efficiency, loading capacity, and in vitro release profile were assessed.Results: The optimized NPs were prepared at a concentration of 0.02 %w/v sodium alginate, 0.1 %w/v calcium chloride, and 0.04% w/v Poly L-Lysine during 45 minutes of stirring at 1300 rpm. They also had a mean particle size <150 nm with a mean PDI of around 0.5. The appropriate loading efficiency was obtained at a concentration of loaded toxoids similar to a conventional DT vaccine, which resulted in the prolonged release of about 85% of loaded toxoids over 120 hours. The SDS-PAGE and dot-blot confirmed the stability and antigenic activity of the released toxoids.Conclusion: These results can significantly contribute to further developing alginate NPs containing DT toxoids in optimized in vitro conditions as a platform for in vivo evaluation to achieve a promising vehicle for immunization of infants and children against diphtheria and tetanus. Manuscript profile -
Open Access Article
859 - ارزیابی شکست بازار در انعکاس ناکارایی زیستمحیطی (مطالعه موردی: بازار خودروهای متداول در ایران
مجید احمدیان زهرا عابدی حمیدرضا غفارزاده الهه کاشف -
Open Access Article
860 - The Measurement of Efficiency Performance in Banking Sector A Case Study of 64 Branches of Bank Tejarat
Ghodratollah Emam Verdi Barzan AhmadiIn this paper attempts are made to evaluate the technical efficiency of selected 46 branches of bank Tejarat, in a specific bank operating region called region four. Toward this ends, a nonparametric technique known as Data Envelopment Analysis (DEA) has been use with a MoreIn this paper attempts are made to evaluate the technical efficiency of selected 46 branches of bank Tejarat, in a specific bank operating region called region four. Toward this ends, a nonparametric technique known as Data Envelopment Analysis (DEA) has been use with a view to providing practical guidelines for efficiency improvement in the banking operation. Based on task assigned to bank managers, the assumption of output oriented Variable Return to Scale (VRS) has been utilized in this study to measure the technical efficiency achieved at. To do so, the month of May in 2225, 2228, and 2221 was selected as check points for efficiency measurement. The findings of this study indicate that average efficiency attributed to regional bank operation has declined in 2225 and this trend has lasted until 2221. The banks that have contributed to decline in lower efficiency record of region four, has been identified. The bank with more sub branches has been contributing to efficiency gain but those banks maintaining low current deposit while keeping its claims at higher level have suffered efficiency loss Manuscript profile -
Open Access Article
861 - Measuring the Economic Efficiencies and Productivity of Natural Gas Refineries in Iran
علی امامی تیمور محمدی عارف بهروزAbstract This paper has been tried to measure technical, allocative and economic efficiency of natural gas refineries of Iran during 2003-2009 with using non-parametric data envelopment analysis (DEA) and Malmquist index.For this purpose, the input based method with th MoreAbstract This paper has been tried to measure technical, allocative and economic efficiency of natural gas refineries of Iran during 2003-2009 with using non-parametric data envelopment analysis (DEA) and Malmquist index.For this purpose, the input based method with three inputs and two output is used. The results showed that the average technical, allocative and economic efficiency, of provinces of the country during 2003-2009, respectively is 95 percent, 98.1 percent and 93 percent. Among natural gas refineries for calculation of the productivity, two refinery, on average, have experienced during 2003-2009 positive growth, and 4 other refinery, have experienced negative growth in productivity. During the year, interest in total factor productivity refineries growers an average of 8.2 percent had negative growth, negative growth of 8 percent due to changes in Technology efficiency . Manuscript profile -
Open Access Article
862 - The Merging and the efficiency of banking industry in Iran
Hamid Shahrestani Soghra GhobadiThe main goal of this paper is to identify the factors affecting the efficiency of banking industry in Iran. Towards this ends, two methods namely, Data Envelopment Analysis (DEA) and Stochastic Frontier Analysis (SFA) have been employed to investigate the issue in deta MoreThe main goal of this paper is to identify the factors affecting the efficiency of banking industry in Iran. Towards this ends, two methods namely, Data Envelopment Analysis (DEA) and Stochastic Frontier Analysis (SFA) have been employed to investigate the issue in detail. The data needed for this study covers the period of 1002 to 1002 and are compiled from balance sheets of commercial banks, specialized banks and also from private banks. The results obtained by the application of DEA method indicate that in terms of economic, allocation, and technical consideration, the average efficiency of banking sectors has been in the order of 265, 775 and 715, respectively. In the SFA method, the overall average efficiency of banking system is estimated to be around %45. the results of our model and its coefficient estimates indicate that the efficiency of banking industry is inversely related to the size of the banks, its overall assets and concentration index while factors such as number of bank branches, its skilled and educated labor force, loan to asset ratio, ratio of credit risk to asset, and e-banking index have a positive impact on efficiency index of banking industry. Promotion of efficiency in the banking sectors can be ensured only when the non viable banks are taking over by acquisition or merging practices Manuscript profile -
Open Access Article
863 - ارزیابی کارایی فنی صنعت بانکداری ایران و تعیین عوامل موثر برآن (رهیافت مدل های مرزی تصادفی)
محسن مهرآر ا رامین عبدی -
Open Access Article
864 - Productivity analysis using MalmQuist index in private insurance companies of Zanjan province
هما درودی بهجت آب چر الهام بیگدلیAbstract Promoting productivity leads to progress and development, and most developed and developing countries have made large investments to spread attitudes toward productivity and to generalize the use of techniques and methods to improve it. The present research is MoreAbstract Promoting productivity leads to progress and development, and most developed and developing countries have made large investments to spread attitudes toward productivity and to generalize the use of techniques and methods to improve it. The present research is applied in terms of purpose and library and non-interactive in terms of data collection. The statistical population studied in this study includes all private insurance companies in Zanjan province during the years 2015- 2017, which is a number of 23 companies and according to the nature of the research, sampling is not done and is a census method. The indicators used in this research are quantitative and the technique used is Malmquist productivity index and data envelopment analysis method. Based on the results of productivity measurement using a data envelopment analysis model based on MalmQuist index, in calculating the average efficiency of total technological changes in 2017 compared to 2015, it shows a growth of 3% in technological changes and total productivity. It has a growth rate of 51%. Also in the study of the effectiveness of technology changes in 2017 compared to 2015 has grown by 119 percent that the majority of units have positive technology changes, which increases the productivity of all factors in private insurance companies in Zanjan province. Manuscript profile -
Open Access Article
865 - The Impact of Growth, Tangibility of Assets, Open Economy and Economic Indexes on Performance Efficiency Banks
زهرا پورزمانی کاظم قاسمیAbstract Banks through the provision of banking services to customers, earn it. So, as banks will be able to use economies of scale to gain more profit. One of the most important source of information for investors, creditors, and other users, the benefits pr MoreAbstract Banks through the provision of banking services to customers, earn it. So, as banks will be able to use economies of scale to gain more profit. One of the most important source of information for investors, creditors, and other users, the benefits provided by the organization is in regular intervals. The forecast profit organizations is also of considerable importance. Because macroeconomic indicators, including indicators of economic openness on the financial performance and profitability are known to be effective, according to the above description, to examine the impact of asset growth and objectivity, openness and Iranian inflation on the profitability of banks during 1383 to 1392 will be discussed. In terms of purpose, the type of applied research and the method of deduction in the group of cross-correlation, because to explore the relationships between variables, regression and correlation techniques which will be used in this way, the argument inductive.Also, since the test data available, we will conclude this research group theory will be positive. Manuscript profile -
Open Access Article
866 - Prioritizing inefficient criteria of Bank Melli branches in Iran
ali taheri Mahdi ZahedGharavi Hamid AsayeshAbstractIn the field of efficiency and productivity of the banking system, various researches have been conducted and there are different models for investigating the inefficiency of banks. This variation in models is due to the nature of the concept of efficiency, espe MoreAbstractIn the field of efficiency and productivity of the banking system, various researches have been conducted and there are different models for investigating the inefficiency of banks. This variation in models is due to the nature of the concept of efficiency, especially its uncertain boundaries and because of the various conceptualizations of organizational efficiency. Some of the approaches to calculating inefficiency based on banks' objectives are: objective model, system model and inefficiency model. However, researches with a comprehensive view on the inefficiency of bank branches have not been found, in this research, all approaches have been used by experts in bank branches with education and experience. Because applying a single criterion is not suitable for bank branches and there is no single criterion that can provide all the activities of bank branches. Therefore, while identifying the criteria and indicators, they have been sipped with the opinion of banking experts. . This research, based on banking experts' opinions and analysis by fuzzy Delphi method and analytical hierarchy, concluded that the ratio of interest on deposits to the interest of branch payment facilities, assets of branches to income from facilities, deferred demands and past maturity to the total residue of branch facilities, ratio of funds ready to loan to total branch deposits, ratio of total undesirable claims to total branch facilities and liquidity ratio to total assets The branch shows the inefficiency of the branch in order And Melli Bank is looking for the same goals as conventional banks, which include profitability combined with reduced banking risks. Manuscript profile -
Open Access Article
867 - Interpretive structural modeling of brand performance with an approach to improve financial performance in industrial markets with a focus on the petrochemical industry
Shahram Eshragh Narges Del Afroz Kambiz Shahroodi Yalda RahmatiAbstract Purpose: Today, heavy competition in the petrochemical industry among countries requires that attention to the brand issue be given priority, especially companies related to the petrochemical industry in Iran due to the sanctions issues, can move by creating a MoreAbstract Purpose: Today, heavy competition in the petrochemical industry among countries requires that attention to the brand issue be given priority, especially companies related to the petrochemical industry in Iran due to the sanctions issues, can move by creating a strong industrial brand to protect their customers. In the present research, the design of the brand performance model in the petrochemical industry was discussed. Method: The research was conducted in a mixed method. The statistical population of the research included sales and marketing experts of 7 petrochemical companies, and 7 experts from these companies and 238 sales and marketing experts were considered as members of the statistical sample. By conducting interviews with brand experts in the petrochemical industry, as well as library studies, concepts and basic components of brand performance were identified. Among the 28 components identified from library studies, 11 components were identified in the expert analysis as components of the brand performance model, which were the basis of the analysis. Findings: The results of the confirmatory factor analysis showed that among the 11 components mentioned, only 7 components significantly explain the performance of the brand. These 7 components are: sales efficiency, innovation in response, modeling, brand-oriented organizational capital, organizational competitive strategies, product quality, production and sales volume. Also, the results showed that the performance of the brand in the petrochemical industry is not in a favorable state in terms of innovation in customer response and production and sales volume. Conclusion: One of the consequences of improving the performance of the brand in this industry, according to the research model, can be mentioned the improvement of the quality level of the products, meeting the market expectations, increasing the commitment and loyalty of customers, favorable financial performance and the development and prosperity of the industry. Manuscript profile -
Open Access Article
868 - The role of transparency in the efficiency of the legislative process of the parliaments of the European Union, the United Kingdom, Italy and Iran
Mohammad Baqer Bahrami Fereydoun Akbarzadeh Ruhollah Shahabi Shiva JalalpourTransparency in revealing how rulers make decisions, in the field of power as an indicator of the quality of politics and governance, is one of the main foundations of democracy and republic and one of the factors of social evaluation in creating good governance. Transp MoreTransparency in revealing how rulers make decisions, in the field of power as an indicator of the quality of politics and governance, is one of the main foundations of democracy and republic and one of the factors of social evaluation in creating good governance. Transparency is one of the tools of public oversight of the parliament and influences the decision-making process in countries and can prepare the ground for change in the field of legislation and be an opportunity to start structural reforms in various sectors of society. The main question of the article is that what role does the transparency of the votes of the representatives of the European and Iranian parliaments play in the efficiency of the parliament from the perspective of good governance? In response, it can be hypothesized that the transparency of the votes of the representatives of the European and Iranian parliaments can play a strategic role in realizing the inherent right of the people to be aware of citizenship rights, monitor the performance of their representatives and be aware of the legislative process. Finally, to ensure the health and efficiency of the performance of the parliaments of Iran and the European Union. Conclusion The article concludes that transparency is important not only domestically but also internationally, and that the interaction between the two can help make parliaments more efficient. Manuscript profile -
Open Access Article
869 - An analysis of the political function of the reform government with a focus on political development over efficiency
Reaz eisaniaSecondary legitimacy of governments One of the most important issues in the field of government studies and one of the current issues of governments, including the reform government, can be: The main question of the article is that; Has the reform government's record of MoreSecondary legitimacy of governments One of the most important issues in the field of government studies and one of the current issues of governments, including the reform government, can be: The main question of the article is that; Has the reform government's record of secondary legitimacy been successful? We have used the critical method to obtain the answer and we have followed this hypothesis; Although the reform government defends its performance and considers it successful, there is a significant relationship between the electoral turn of the people from the reform government to another government, which indicates the failure of their performance in relation to the country's development plans as well as the ratio. Compared to the performance of developed countries. The findings of the study also indicate that although government agents have reformed their performance compared to previous governments based on successful political development, but from the people's point of view; legitimate freedoms, deprivation and the realization of civil society, and especially the prosperity of culture and politics, and wanted to achieve the same economic development through the political development of the country. In the eight years of his rule, he faced a crisis every nine days, so it can be said that he could not respond positively to the demands of the people, and its inefficiency was shown more than anything in the ability to regulate, so a license for Turning from Khatami's government to another government called the Justice Government. Manuscript profile -
Open Access Article
870 - The Impact of Resource Management and Consumption on Banking Performance by Emphasizing the Moderating Role of Corporate Governance
mir morteza mousavi asgar pakmaram jamal bahrisales hasan ghalibaf aslBanks, as the most important endpoints of our financial crisis, have also become increasingly aggressive. The mission of banks is mainly based on the principle of collecting wandering funds in the form of deposits and on the other hand trying to allocate resources optim MoreBanks, as the most important endpoints of our financial crisis, have also become increasingly aggressive. The mission of banks is mainly based on the principle of collecting wandering funds in the form of deposits and on the other hand trying to allocate resources optimally in different economic sectors so that they can meet government goals. Purposefully use resources collected to achieve sustainable development.To achieve this goal, hybrid regression models have been used as statistical sample for the period of 2012-2018 with the selection of all private banks accepted in the Tehran Stock Exchange. The results of the testing of research hypotheses show that the management of resources and expenses has a significant effect on the operational efficiency of banks. There was also a significant impact of corporate governance on the interaction between cost management and operational efficiency of banks.There was also a significant impact of corporate governance on the interaction between cost management and operational efficiency of banks. Manuscript profile -
Open Access Article
871 - Measuring and ranking the Ease of business Efficiency in Iran and Selected Countries
mostafa mardani najafabadi nasrin ohadi farshad razmavarExistence of appropriate business environment and need assessment of factors affecting it to improve national production process and creating new economic capacities is undeniable. The purpose of this study is measuring and ranking the easiness of efficiency of business MoreExistence of appropriate business environment and need assessment of factors affecting it to improve national production process and creating new economic capacities is undeniable. The purpose of this study is measuring and ranking the easiness of efficiency of business in upward middle-income countries over a four-year period (2017-2020). For this purpose, 63 middle-income countries were evaluated with fuzzy dynamic multi-objective data envelopment analysis techniques in 10 areas of starting a business, obtaining construction license, cost of energy(electricity), registered property, obtaining credit, protecting minority Investors, paying taxes, cross-border trade, enforcing contracts and bankruptcy. The results showed that there is great potential for increasing efficiency and productivity in all inputs, the success of doing business in different countries is largely influenced by factors such as starting a business, cross-border trading, receiving electricity and supporting minority investors. Guatemala has been ranked one as the best performance in ease of businesses in 2019 and 2020, according to research findings while Iceland's has the worst rankings in 2018 and 2019, and Iran ranked 51st, following an improving trend in 2020 with 29 steps down Manuscript profile -
Open Access Article
872 - Provide a model for calculating the efficiency of companies with the help of network data envelopment analysis with undesirable factors
ahmad royaei farhad hosseinzadehlotfiEach steel company buys the raw materials it needs from the manufacturers in question, thus forming supply chains with network properties. Therefore, there is a need to conduct performance research to improve the performance of these chains. In studies, the study of spe MoreEach steel company buys the raw materials it needs from the manufacturers in question, thus forming supply chains with network properties. Therefore, there is a need to conduct performance research to improve the performance of these chains. In studies, the study of specific structures in the supply chain has received less attention. In this research, we have tried to examine the network and how to evaluate its performance in the presence of uncontrollable, undesirable factors. For this purpose, network DEA models are proposed that evaluate the performance of the chain in the presence of uncontrollable inputs and outputs, undesirable output even in its internal structure. Then, 11 present steel companies, the corresponding chain of each of which has two stages, were evaluated by the presented models in 1398. The designed model was based on the network Data Envelopment Analysis of tailored the companies under study and their efficiency was calculated. Based on the results, one company under the first stage and one company under the second stage were recognized as efficient, and all companies had a total efficiency of less than one. Manuscript profile -
Open Access Article
873 - Optimization of petrol demand through pricing system and improving the efficiency of car engine (in the framework of autoregressive model with distribution intervals and error correction model in the period 1988 to 2016)
Mohammad Reza Shahbazi Amir Hossein JanMohammadi Mahdi Sadeghi Shahdani,petrol consumption in Iran has an average annual growth of 2.8 percent during the years 1988 - 2016.A good understanding of effective factors on petrol consumption in the short - term and long term can pave the way for the adoption of appropriate policies in this area. Morepetrol consumption in Iran has an average annual growth of 2.8 percent during the years 1988 - 2016.A good understanding of effective factors on petrol consumption in the short - term and long term can pave the way for the adoption of appropriate policies in this area. Promoting performance and modification of consumption patterns is essential to respond to an increasing demand for gasoline consumption, which has been emphasized in the overall policies of the resistance economy.In this paper, the effect of variables of real petrol price, average real household income and car engine efficiency in the form of an econometric model using time series modeling in Iran during the period 1988-2016 has been studied.The model is estimated using the autoregressive model with distributed intervals and the error correction model. The results show that among the variables used, petrol consumption is inversely related to the actual price of gasoline and the efficiency of motor vehicles, and is also directly related to the average real household income. According to the results, the effect of 1% improvement in car engine efficiency in reducing fuel consumption is 17 times more than 1% increase in real petrol price in reducing fuel consumption. Manuscript profile -
Open Access Article
874 - Investigating the effective factors of investing in human resources in companies admitted to the Tehran Stock Exchange
Rasoul Masroori Asgar Pakmaram Ahmad Mohammady Golamreza RahimiA significant part of the the capital of the leading organizations has been attributed to the considering human resources in recent years. The knowledgeable and capable managers know that the more they provide the prerequisites for progress and promotion of human resour MoreA significant part of the the capital of the leading organizations has been attributed to the considering human resources in recent years. The knowledgeable and capable managers know that the more they provide the prerequisites for progress and promotion of human resources, the more they guarantee the success, efficiency and superiority of their organization before other organizations. The most efficient way for achieving high competitive advantage and the most important superiority index according to tremendous changes in the economic conditions is empowering and making efficient the human resources in organizations. Human resource is the most important capital of the organizations. The purpose of this research is to propose a model of efficiency of investment in human resources. The statistical population consisted of all companies listed in Tehran Stock Exchange. The research method is descriptive and survey. The statistical sample included 155 companies selected via available sampling method. The data were collected by author-made questionnaire based on Likert scale. Kolmogorov- Smirnov test was used for normality test and structural equations modeling was employed for hypotheses test. The results showed that the quality of financial disclosure, human capital disclosure, improvement of business environment have a positive and significant impact on human resources. Manuscript profile -
Open Access Article
875 - چالشهای اجرای حسابرسی عملکرد در دستگاههای اجرایی
غلامحسین مهدوی محمد محمدیان -
Open Access Article
876 - Modeling of Audit Production Efficiency based on the Business Risk Audit Approach
Shoeyb Rostami OstadKelayeh MohammadAli Aghaei Kumars BiglarAbstractBased on the business risk audit (BRA) approach, auditors should define and perceive strategic management control techniques and operating processes to evaluate a business. They should also select risk control processes in vital operating processes to estimate t MoreAbstractBased on the business risk audit (BRA) approach, auditors should define and perceive strategic management control techniques and operating processes to evaluate a business. They should also select risk control processes in vital operating processes to estimate the type and magnitude of residual business risks that might affect the accuracy and fairness of financial statements. In the present study, using a qualitative approach with the help of Grounded theory and in-depth interviews with 31 auditing experts in 2021 with the titles of partner, members of the audit organization and members of IACPA specialized working groups, to understand their mental meanings and BRA approach to conduct the audit was interviewed. In addition, textual data from notes and articles in international professional journals on BRA were used, which mainly provided the views of various experts. The research data were analyzed using open coding method in Grounded theory and major categories, categories, and subcategories (concepts) were extracted. Using a systemic approach that includes inputs, processes, outputs, outcomes and contextual factors, the model of audit production efficiency was designed based on the business risk audit and the categories that emerged were presented. Considering the limited scope of previous research on BRA and especially the lack of comprehensive research in Iran, the designed model, which is multifaceted and the result of the views of various auditing experts, provides a broad and comprehensive view of audit production efficiency based on the business risk audit that can be used in audit quality improvement programs, evaluating independent audit and other macro strategies for the development of audit methodology in Iran.Given the flaws and shortcomings of Iran’s current auditing framework, integrating the BRA approach into the current framework will be promising. At the same time, this approach can prevent over-auditing due to its proved inherent value. It can also be considered a naturally correct method of auditing. Manuscript profile -
Open Access Article
877 - The Effect of Management Forecast Quality on Investment Efficiency Considering the Role of Ownership Structure
فاطمه دهقان امید پورحیدری احمد خدامی پورAbstract The purpose of this paper was to investigate the Effect of Management Forecast Quality on investment efficiency considering the Moderating role of ownership structure. The statistical population of the research is listed companies in Tehran Stock Exchange. In MoreAbstract The purpose of this paper was to investigate the Effect of Management Forecast Quality on investment efficiency considering the Moderating role of ownership structure. The statistical population of the research is listed companies in Tehran Stock Exchange. In this regard, the data of 129 companies in the period between 2009 to 2018, has been investigated by applying a multivariate regression model. Data has been extracted from Codal site and Rahaward software Version 3. The data were analyzed by eviews software version 11. Before testing the research models, using F-Limer and Hausman tests, panel data with fixed effects were selected for testing the models. The present study is of a correlational nature and in terms of purpose, it is an applied research. In this study, institutional ownership and ownership concentration were used to measure ownership structure. The results indicated that earnings Forecast accuracy has a positive and significant effect on investment Efficiency. In addition, institutional ownership does not strengthen the relationship between earnings Forecast accuracy and investment efficiency. But the ownership concentration moderates the effect of earnings Forecast accuracy on investment efficiency. Manuscript profile -
Open Access Article
878 - Providing an Effective Model for Monitoring and Evaluating Public Sector Financial Performance in Performance-based Budgeting
حافظ امرایی عادل آذرMonitoring the financial performance of the government will enable governments to implement and implement fiscal policies and financial and economic decisions and ultimately economic and social development. Identify key and effective factors to change the financial perf MoreMonitoring the financial performance of the government will enable governments to implement and implement fiscal policies and financial and economic decisions and ultimately economic and social development. Identify key and effective factors to change the financial performance system in the public sector from the traditional control method to the concept new control can help improve the well-being and well-being of individuals, groups, organizations and society. Therefore, the present study aims to identify key factors in monitoring and evaluating the financial performance of the public sector and increase accountability and transparency in this sector to provide an effective model for monitoring and evaluating the financial performance of the public sector in performance-based budgeting and among the qualitative research strategies The foundation was used And developed a comprehensive model that includes causal factors, intervention factors, contextual factors, strategies and consequences of providing an effective model for monitoring and evaluating the financial performance of the public sector in performance-based budgeting. The research tool was interview and data saturation was obtained based on 15 interviews using snowball sampling method. A total of 10 categories and 213 concepts were identified and placed in 6 categories of Strauss-Corbin model. In the proposed model, 10 central codes of "legal and regulatory factors", "organizational structure and culture", "financial and budgetary factors", "structural factors of monitoring and evaluation", "content and managerial factors of monitoring", "motivational and psychological factors" "Technology and information factors", "economic factors", "political and international factors" and "cultural, social factors" are considered in the model and causal factors, context conditions, interventionist conditions, consequences and strategies are considered. Certainly other components and indicators can be identified that, despite much effort, remain hidden and can be discovered, which in this respect the present study has been limited. Manuscript profile -
Open Access Article
879 - Evaluating the Criteria of Professional Conduct in the Independent Audit Quality Profession
Mohammad Karimabadi Hossein Jahangirnia Zohreh Hajiha Reza GholamiJamkaraniAbstractThe bankruptcy of international companies is rooted in the ignorance of accounting violations, and this ignorance is ultimately due to the decline of ethics and forgetting the mission of the auditing profession as an autonomous profession. Auditing is not just a MoreAbstractThe bankruptcy of international companies is rooted in the ignorance of accounting violations, and this ignorance is ultimately due to the decline of ethics and forgetting the mission of the auditing profession as an autonomous profession. Auditing is not just about the debtor and creditor world, but also about issues such as risk, controls, measurement of operations, and audit evidence. As a result, the audit process requires a large number of professional judgments by auditors, and these judgments and selection of procedures require professional ethics.The purpose of this study is to evaluate the criteria of professional conduct in the independent audit quality profession. This study was performed on 218 auditors of different categories who were randomly selected in 1400. In line with the purpose of the research and through theoretical studies and surveys of experts on professional independence, objectivity (neutrality), honesty, professional doubt, professional commitment, audit inefficiency and ethical culture as criteria affecting the quality of independent auditing a ritual of professional conduct.To analyze the data and test the research hypotheses, the structural equation model was used with the help of Smart PLS software. Findings from the study of the effectiveness of effective factors indicate that the criteria of objectivity (impartiality), honesty, audit inefficiency and ethical culture are the effective criteria in professional conduct in line with the quality of independent auditing.According to the results regarding objectivity (neutrality) and honesty (correctness), it can be said that the results are planned according to the theory of behavior; Regarding the result of audit inefficiency behavior, the result can be considered logical according to the theory of practice. In relation to the result obtained from the criterion of moral culture, it can be considered in accordance with Merton's theory of social and cultural structure. Manuscript profile -
Open Access Article
880 - Strong Shareholder Rights, Internal Capital Allocation Efficiency, and the Moderating Role of Market Competition and External Financing Needs
Fereshteh FeizabadiAbstract Nowdays, the capital market in developing countries is considered as a tool to increase investment and economic growth. Since efficiency is the main and most The purpose of this study was to Investigate strong shareholder rights on the internal capital allocat MoreAbstract Nowdays, the capital market in developing countries is considered as a tool to increase investment and economic growth. Since efficiency is the main and most The purpose of this study was to Investigate strong shareholder rights on the internal capital allocation efficiency, the role of competition and external financing in companies listed on the Tehran Stock Exchange.The spatial domain of this research was the companies listed in the Tehran Stock Exchange . In this research, the rights of the strong shareholders of the independent variable and the efficiency of internal capital allocation of the dependent variable were considered..In the data section of the study, data were collected from sample companies by referring to financial statements, explanatory notes and stock exchange monthly.Based on systematic elimination method, 100 companies were selected as statistical sample.Descriptive and inferential statistics were used to describe and summarize the data collected.In order to analyze the data, pre-tests of variance homogeneity, F-Lemer test, Hausman test, and Dicky-Fuller test and then multivariate regression test were used to confirm and reject the research hypotheses (EViews software).The results showed that strong shareholder rights significantly increase the internal capital allocation efficiency.However, the moderating effect of market competition and external financing needs is not found to be significant. Manuscript profile -
Open Access Article
881 - Optimizing AGV Colonie’s Efficiency by Fuzzy Simulation
Shabnam Ezadpanah Alireza Mohammadion Armen Adamian -
Open Access Article
882 - Potential of Using Residential Scale Solar Heat in Pakistan: Finding the Best Station
Mahshid Babaei Mehdi Jahangiri Rashid Riahi Farhad Raeiszadeh Habib Ur Rahman Habib -
Open Access Article
883 - The Role of Managers' Communication Skills on Workplace Efficiency (Case study: Employees of business enterprises in Kerman)
somayeh sadat mahdavi seyed vahid aqili norooz hashemzehi ali akbar farhangiToday's executives have come to the conclusion that business can not be run only by laws and regulations Rather, they need other tools called communication skills. The purpose of this article is to investigate the role of managers 'communication skills on the efficiency MoreToday's executives have come to the conclusion that business can not be run only by laws and regulations Rather, they need other tools called communication skills. The purpose of this article is to investigate the role of managers 'communication skills on the efficiency of the workplace from the employees' perspective. The purpose of this article is to investigate the role of managers 'communication skills on the efficiency of the workplace from the employees' perspective. Theoretical discussions using the theories of persuasion (Holland), Needs Hierarchy Theory (Maslow), Success Theory (McClelland), Theory of Motivation and Mental Health (Hertzberg), Elton Mayo Theory, Social influence theory, Adams Theory, People Satisfaction and Goal Approach. The dimensions of communication skills are self-reliance, social support, empathy, and listening, and the dimensions of work efficiency include: flexibility, fairness, The beauty of the service space is to respect the client's views and to pay attention to human capital. Statistical community of 34 stores of Kerman city, were selected by random sampling and 182 employees were surveyed. The data collection tool was a questionnaire and the data were analyzed through structural equations. According to the results of the research, the dimensions of communication skills (self-openness, social support, empathy and listening) have an impact on the efficiency of the workplace, That is to say, this causal relationship is predicted to be confirmed in a larger sample of the same community. Manuscript profile -
Open Access Article
884 - Causes of inefficiency of socio-political parties in Iran after the Islamic Revolution based on social and cultural factors: A qualitative study based on thematic analysis
farshid salamat Sasan Vadie zahra Hazrati someehDespite more than a century since the beginning of partisanship in the country and the emphasis on public opinion and collective opinions, we still do not see the existence of parties in the true sense of the word in the country. The aim of this study was to investigate MoreDespite more than a century since the beginning of partisanship in the country and the emphasis on public opinion and collective opinions, we still do not see the existence of parties in the true sense of the word in the country. The aim of this study was to investigate the causes of the inefficiency of socio-political parties in Iran after the Islamic Revolution, using the thematic analysis method. This research was applied based on purpose and in terms of method, and quality, and had a descriptive approach. The thematic analysis method was used to analyze the data obtained from semi-structured interviews. The statistical population of the study included 14 knowledgeable people in the field of political sociology and political science as well as appropriate texts for extracting indicators and theoretical literature. In this study, to select the samples, the snowball approach was used and as a standard for the end of sampling, the theoretical saturation method was used. Themes were obtained using two sources of theoretical literature and semi-structured interview. The result of qualitative data analysis was the identification of 60 concept codes, 18 basic themes, and 2 organizing themes including "Social factors" and "Cultural factors" which were presented in the form of a model Manuscript profile -
Open Access Article
885 - Investigating the Effect between Overall & Partial Efficiency of Financing Methods from the Perspective of Governance and Residents of the Worn-Out texture of Urban Recreation Targets and Neighborhoods, Using Network Fuzzy Range Adjusted Measure Data Envelopment Analysis (NFRAM DEA) method (Case Study: Javanmard Qasab Neighborhood, District 20 of Tehran Municipality)
sara hadavand mohammad ebrahim mohammad pourzarandi mehrzad minoueiThis analytical-descriptive article seeks to explain the impact of overall and partial of efficiency governance and residents on selected financing methods in the Javanmard Qassab neighborhood. The statistical population was all residential properties located in this ne MoreThis analytical-descriptive article seeks to explain the impact of overall and partial of efficiency governance and residents on selected financing methods in the Javanmard Qassab neighborhood. The statistical population was all residential properties located in this neighborhood, of which 50 homogeneous license plates were selected in terms of land area by non-random sampling method. Using fuzzy data envelopment analysis model, Network Fuzzy Range Adjusted Measure Data Envelopment Analysis, overall and partial efficiency was calculated and classified into three groups by using the K-means Clustring technique. Findings from Pearson correlation coefficient and F-test & test of significance (Two-tailed) of variance in SPSS software environment show that there is a direct and positive relationship between overall efficiency and part of residents in all financing methods with an average correlation coefficient of 0.834 with a significant level of 99%. It is more prominent in the process of improvement and modernization. The findings show a direct relationship between overall efficiency and governance with a mean correlation coefficient of 0.570. The results suggest that there is no significant relationship between residents' performance efficiency and governance, which indicates a lack of correlation in financing between government and people's interests. Manuscript profile -
Open Access Article
886 - Evaluation of market efficiency with using advanced econometric models in Tehran Stock Exchange
mohammad jouzbarkand hosein panahianThis study is an attempt to introduce a suitable model to evaluate the efficiency of capital market in Iran. Optimal allocation of resources in micro and macro investments is essential to the capital market. The main task of the capital market is to streamline capital a MoreThis study is an attempt to introduce a suitable model to evaluate the efficiency of capital market in Iran. Optimal allocation of resources in micro and macro investments is essential to the capital market. The main task of the capital market is to streamline capital and allocate resources effectively. Investigating what factor or factors influence the market price of a share in market and whether there is a systematic pattern of pricing a share is In terms of market efficiency .In this regard, the daily data of the Tehran Stock Exchange Index and Total Price Index during 2008-2018 have been used. ARCH, GARCH and Kalman filters were used to perform the test. The results of the tests show that there is no weak form of market efficiency in the Tehran Stock Exchange. And this inefficiency has not changed significantly since the first period. In other words, it is possible to predict returns in the Tehran stock market. Manuscript profile -
Open Access Article
887 - Providing a Model of Cost Efficiency Evaluation in Lean Supply Chain with Interpretive Structural Modeling (Case Study: Iran Khodro Company)
behzad latifian Mehrdad Ghanbari babak jamshidinavidThe purpose of the present study is to present a model to evaluate the efficiency of Iran Khodro Company production costs with a lean supply chain focus and using an interpretive structural approach.The method was qualitative-quantitative. In the qualitative section, 17 MoreThe purpose of the present study is to present a model to evaluate the efficiency of Iran Khodro Company production costs with a lean supply chain focus and using an interpretive structural approach.The method was qualitative-quantitative. In the qualitative section, 17 variables were extracted by interviewing the experts, and in the quantitative section, the interpretive structural modeling (ISM) method was used for modeling and then the Mic-Mac analysis was performed.Findings were to obtain a five-level model that was the most influential and the only variable in the fifth level of technology change and the most influential variables in the first level were profitability, gross income and basic cost efficiency index. According to the Mac-Mac analysis, technology change measures have low dependency and high conductivity, cost reduction measures, and gross revenue generating high impact and little impact on the system; the rest are interface type.According to the model of this research, technological changes can have the greatest impact on the cost efficiency of production. Other ways to improve the efficiency of production costs include: increasing production quality, optimizing production input costs, effectively managing production input price changes, increasing production capacity and ... Manuscript profile -
Open Access Article
888 - Determining of optimal risk level and optimal structure of capital based on logarithmic model of Border Operational Efficiency in Banks
mir hamid sadat salmasi iman dadashi hasmidreza gholamnia roshanThe purpose of this study was to determine the optimal level of risk and optimal capital structure based on the logarithmic model of boundary operating efficiency in banks. In this study ، data envelopment analysis based on logarithmic boundary function modeling with as MoreThe purpose of this study was to determine the optimal level of risk and optimal capital structure based on the logarithmic model of boundary operating efficiency in banks. In this study ، data envelopment analysis based on logarithmic boundary function modeling with assumption of geometric convexity is used to evaluate the efficiency of each Iranian bank for the performance years under study. Among the 28 factors identified through content analysis and knowledge domain analysis, sixteen factors included inputs, outputs, risk, Capital Structure (Minimum Capital, Minimum Capital Risk and Minimum Leverage Ratio), Bank Level Properties (Bank Size, Return on Assets, Return on Equity, Deferred Facility Rate and Liquidity Rate), Factors affecting efficiency, risk and capital structure of banks are identified. The research method relied on a theoretical-applied research design and a descriptive-deductive inference method. Twenty-five banks were selected from the Iranian banks by elimination method and studied over a six-year period ending on 29/12/97. Validation of estimation models based on coefficients of determination showed that regression equations have high explanatory power in determining the optimal level of risk and optimal capital structure based on different measures and Fisher's significant level of significance and generalizability of the estimated results are significant. Manuscript profile -
Open Access Article
889 - Analysis The Role of Financial Development in Iran's Carbon Emissions Reduction; Application of Space Durbin Model
elham ataei kachooei kaveh azinfar Iman dadashi Maryam shafiee kakhakiIssues related to environment are one of the most important issues the communities are facing with in the recent decades. On the other hand, the resource scarcity and the necessity of development for Iran and other similar countries makes the issue of carbon dioxide as MoreIssues related to environment are one of the most important issues the communities are facing with in the recent decades. On the other hand, the resource scarcity and the necessity of development for Iran and other similar countries makes the issue of carbon dioxide as a solution of the environmental crisis important. In this study, the effects of the variable carbon dioxide, Investment, Financial rate, Density of insurance, and Depth of insurance use are examined on the carbon dioxide emission with the method of panel data. In this study, we modeled the carbon dioxide flow over the period from 2005 to 2014 for the Financial depth and Financial growth using a dynamic spatial regression model. versus fixed effect specification, a spatial Hausman test was fixed effect. Also, we modified Wald test was not fixed effect regression and Durbin-Watson test was the Residual autocorrelation detection The SAR results support the hypothesis of the impact of spatial effects. Depth of insurance in provinces has led to an increasing relationship with CO2 emission in each province, investment had no significant relationship with CO2 emission in each province as well as insurance density and financial relationship of decline with CO2 emission in each province. Manuscript profile -
Open Access Article
890 - Managerial ability, investment efficiency and risk of stock collapse
Negin Hosseini mohammadreza kashefi NishaburiGiven thechanges that have taken place in the world today,in developing countriesthat face many threats,these countries need appropriate solutions tosolve their economicproblems tomake better useof theirGod-givenfacilities and wealth.Oneof the important strategies is in MoreGiven thechanges that have taken place in the world today,in developing countriesthat face many threats,these countries need appropriate solutions tosolve their economicproblems tomake better useof theirGod-givenfacilities and wealth.Oneof the important strategies is investment development.Due to limited resources,inaddition tothe issue ofinvestment development,increasing investment efficiency and awareness of the riskofstock falls are among the most important issues.The purposeof thisstudywas to investigate the effectofmanagerial abilityon the investment efficiencyof companieslisted on theTehran StockExchange andto investigate the effectof investment efficiency onthe risk of fallingstock pricesof companieslisted ontheTehranStockExchange usingthe methodThe data panel isfor the period 2011-2018.The results showedthat managerialability has a positive effecton investment efficiency so that if themanagerial abilityof a unit increases,investment efficiency/0005.The unit increases;The risk of falling stockpriceof the first benchmark of theprevious year and investmentefficiency have a negative effect on therisk ofstock falling, so that if the risk of falling stock priceofthe first benchmarkof the previousyear and the investment efficiencyof a unit increases,the riskof fallingstock is0.08 And decreasesby1.54 points;The riskof fallingstock priceof the second benchmark of theprevious year and investment efficiency have a significant negative effect onthe risk of stockfalling, sothat if the riskof fallingstock price of thesecond benchmarkof the previous year and the investmentefficiency of one unit increases,the risk ofstock falling is/07Anddecreasesby1.81points Manuscript profile -
Open Access Article
891 - Applying the electro method to determine the effects of calendar irregularities in chemical companies listed on the Tehran Stock Exchange
sahand vahabi Bahareh Banitalebi DehkordiToday, due to the expansion of capital markets, it is essential to identify investor behavior and variables that affect stock prices and returns. The purpose of this study is to use the electrification technique to investigate the effects of irregular calendar day, week MoreToday, due to the expansion of capital markets, it is essential to identify investor behavior and variables that affect stock prices and returns. The purpose of this study is to use the electrification technique to investigate the effects of irregular calendar day, week and month, with the help of returns and non-systematic risk in chemical companies listed on the Tehran Stock Exchange, in the period 2015-2020. The reason for using the electrification technique, which is a new method in financial research based on stochastic dominance analysis, is the existence of problems in both regression methods with virtual variables and Garch model, as well as achieving more realistic results about the effect of calendar irregularities. The findings show that Monday has the highest and Tuesday the lowest returns for investing in the Tehran Stock Exchange. Also, the best time to invest is from May to the end of summer, especially August, and the most inappropriate time is February and December. In addition, the findings show that investing in the second week of each month is a better opportunity than other weeks. Manuscript profile -
Open Access Article
892 - Company sustainability model based on financial efficiency model by P-VAR model
saman ebadi Rasoul Abdi nader rezaei Asgar pakmaramManagers today deal with complex and unique social, environmental, technological and market trends. Managers are still hesitant to come up with sustainable strategies because they believe the cost outweighs the benefits. Studies show that sustainability practices have a MoreManagers today deal with complex and unique social, environmental, technological and market trends. Managers are still hesitant to come up with sustainable strategies because they believe the cost outweighs the benefits. Studies show that sustainability practices have a positive effect on business performance. Therefore, the purpose of this study is the sustainability model of the company based on the financial efficiency model based on the P-VAR model. Based on this goal, data related to 91 companies of Tehran Stock Exchange in the period 1390 to 1398 were analyzed. The research variables include 4 variables (profitability, efficiency, debt management and asset management) and secondary indicators in a total of 14 indicators. Data analysis was performed based on secondary variables and indicators. The results of the P-VAR model showed that the interaction between the variables of profitability, efficiency, debt management and asset management is small. Therefore, the mentioned variables do not have much effect on each other. Also, in the long run, these effects either decrease or do not increase enough. This small amount of interaction between variables is also related to the model used in the research. Manuscript profile -
Open Access Article
893 - Evaluation of financial performance of Iranian insurance companies using two-stage data envelopment analysis technique
Reza Sanei Mohammad fallah Farhad Hosseinzadeh Lotfi Farzad Movahedi Sobhani,insurance companies as one of the most important financial institutions have a special place in economic growth and development , so that efficient performance of this sector will affect other economic sectors.Therefore, evaluating the performance of companies operating Moreinsurance companies as one of the most important financial institutions have a special place in economic growth and development , so that efficient performance of this sector will affect other economic sectors.Therefore, evaluating the performance of companies operating in this industry and identifying their strengths and weaknesses is of great importance. One of the performance appraisal techniques that has received a lot of attention in recent years is data envelopment analysis. In this paper, using the two-stage model of SORM-SBM data envelopment analysis, the performance evaluation of 21 insurance companies operating in Iran with financial indicators has been performed, which in addition to total efficiency, calculates and shows the efficiency of each company in both marketing and profitability. The company's performance is efficient if it has been efficient in both areas. The model values for each company are also calculated and the relationship between these values and total performance is shown Manuscript profile -
Open Access Article
894 - Analysis the Effect of Heuristic Biases on Investment Decisions and Market Efficiency for future policy making
Shahriar Shirooyehpour Rohullah Bayat Ali MoafiThe Behavioral finance literature states that human beings in practice behave differently from what modern financial theories portray as rational human beings, so the assumption of rationality of investors and the belief in the efficiency of stock markets has been criti MoreThe Behavioral finance literature states that human beings in practice behave differently from what modern financial theories portray as rational human beings, so the assumption of rationality of investors and the belief in the efficiency of stock markets has been criticized. Accordingly, the present study examines the impact of investor behavioral biases on how to make decisions and market efficiency simultaneously, which has not been addressed so far. It also highlights the importance of understanding the process and the role of behavioral factors in investor decisions and market efficiency for future capital market policymakers and regulators. The present study is applied in terms of type of use and descriptive-correlational research. The target population of this study was real investors in Tehran Stock Exchange and Available purposive sampling method was used. Structural equation modeling were used to analyze the data and test the conceptual model of the research. The research findings show that biases of overconfidence, representation, availability and anchoring and adjustment have a significant effect on market efficiency. Findings also showed that overconfidence bias, anchoring and adjustment have a significant effect on investment decisions. Behavioral biases among investors are inevitable that these biases can affect investors' decisions and market efficiency. Manuscript profile -
Open Access Article
895 - Providing an Optimal Financing Model of Entrepreneurship Through Acquisition (ETA) Perspective of Entrepreneurs and Investors Using Data Envelopment Analysis (DEA)
Maryam Amiri Mohsen Rostamy-Maslkhalifeh Afsaneh Zamani MoghadamIn the past, attempts have been made to conceptualize all purchases based on the LBO model and through the lens of agency theory. This view of the past has severely limited the ability of financial engineers to create models and tools for entrepreneurship motivation. ET MoreIn the past, attempts have been made to conceptualize all purchases based on the LBO model and through the lens of agency theory. This view of the past has severely limited the ability of financial engineers to create models and tools for entrepreneurship motivation. ETA is a window to revitalize businesses by acquiring small businesses with entrepreneurial capacity instead of starting a start-up business.In this study, according to behavioral, financial, economic, social, and legal indicators, the efficiency degree of entrepreneurship through acquisition models using the non-parametric method of data envelopment analysis based on output-oriented BCC and CCR models from the entrepreneurs and investors' perspectives in the Iranian market. We have demonstrated a comprehensive ranking of the models based on the Anderson and Peterson (A&P) model finally.The results show that based on the output-oriented BCC and CCR models, the crowdfunding model from the perspective of entrepreneurs, and the incubator model from the perspective of inefficient investors. According to Anderson and Peterson model, the optimal model from the point of view of investors is the sponsor model and from the entrepreneurs' view, the self-fund model was considered with the highest efficiency and compliance according to the indicators Manuscript profile -
Open Access Article
896 - comparative analysis of efficiency in Black Scholes model and the binomial tree in call options in tehran stock exchenge
kourosh nasiri gholamreza askarzadehThe financial markets of each country reflect the dynamism of that country's financial institutions and instruments. In developed financial markets, new tools have emerged to hedge trading risk. options is one of these tools, the price of which is a function of supply a MoreThe financial markets of each country reflect the dynamism of that country's financial institutions and instruments. In developed financial markets, new tools have emerged to hedge trading risk. options is one of these tools, the price of which is a function of supply and demand. But there are pricing models in this market, the most widely used of which are the Black Scholes model and binomial . The purpose of this article is to evaluate the efficiency of these two methods in the option market to buy transactions on the Tehran Stock Exchange. For this purpose, 30 highly traded symbols during the years 2016-2020 have been selected and their prices have been estimated based on both models. To measure their efficiency based on the obtained regression models, R2 and regression beta have been used. The results show that based on R2 and beta variables, there is no significant difference between the mean scores of the two models and these two models have the same performance in the market. , the bid prices of both models are lower than the call options in the market, but there is no significant difference between the performance of Black Scholes and the binomial . Manuscript profile -
Open Access Article
897 - Portfolio optimization with Fraction of Expectation to Risk of future financial strength based on Eigen Vector of Pairwise Comparisons Matrix
Keikhosro Yakideh Gholamreza Mahfoozi Mahshid GoodarziThe aim of this study is to propose a new method for portfolio optimization based on financial ratios. In this method, cross efficiency scores are produced from financial ratios, using Data Envelopment Analysis. Mathematical interpretation of these cross efficiency scor MoreThe aim of this study is to propose a new method for portfolio optimization based on financial ratios. In this method, cross efficiency scores are produced from financial ratios, using Data Envelopment Analysis. Mathematical interpretation of these cross efficiency scores that allocates several score to each company is efficiency of company in probably future situations. Efficiency scores calculated based on proper financial ratios can be considered as financial strength. Thus cross efficiency scores produced from financial ratios, can be considered as potential financial strength. As future is not clear, potential financial strength can be presented in expectation and risk indices that are mean and variance of cross efficiencies. Fraction of expectation to risk for potential financial strengths can be used as a criterion for pairwise comparison of companies. Eigenvector associated with the biggest eigenvalue of pairwise comparison matrix reflects relative importance weights of companies. This paper proposes relative importance weights of companies as a basis for portfolio optimization. Based on sharp index Performance of proposed method is acceptable and better than marker portfolio and portfolio of one similar method. Manuscript profile -
Open Access Article
898 - Profitability of Technical Analysis: Combining Oscillators With Moving Average Rules
Saeed Fathi Nahid ParviziInvesting in the stock market involves analyzing stocks and timing of purchase and sale. For this purpose, different methods and points of view, such as fundamental analysis and technical analysis can be performed. Many studies have investigated the profitability of tec MoreInvesting in the stock market involves analyzing stocks and timing of purchase and sale. For this purpose, different methods and points of view, such as fundamental analysis and technical analysis can be performed. Many studies have investigated the profitability of technical analysis in the capital market and used various trading strategies. The purpose of this paper is to investigate the potential gains from technical analysis through combining oscillators and moving averages in terms of 6 analytical strategies. Investigating the profitability of technical analysis with use analytical strategy not has been done in country and abroad. For this purpose, in terms of 6 buy and sell strategies, the shares of10 stock petrochemical company that accepted in Tehran Stock Exchange is analyzed. The period of investigation has been 2010 to2013. Findings showed that the majority of all strategies that suggested buying signals, has created a return over the risk-free return. In all strategies, while also buying signals being profitable, holding stock for each of these intervals does not make a significant difference in the rate of annual return.In the first strategy, was observed difference in Returns in time periods. Also, with compare the annual return on all timescales strategy, third strategy have been more efficiently than other strategies. Manuscript profile -
Open Access Article
899 - Risk hedging by use of Hybrid future contracts index (Case: Iran financial market)
Hamid Eskandari Ali Asghar Anvary Rostamy Ali Husseinzadeh KashanFormer local and foreign researches in risk hedging area have investigated optimum delivery month and optimum risk hedging ratio. In this research risk hedging by use of all delivery months by use of weekly data is discussed because of low number of transactions and con MoreFormer local and foreign researches in risk hedging area have investigated optimum delivery month and optimum risk hedging ratio. In this research risk hedging by use of all delivery months by use of weekly data is discussed because of low number of transactions and contract's volumes in Iran Mercantile Exchange. Three scenarios are defined. For this purpose three scenarios is defined. In the first scenario the number of positions on each delivery month is equal with the number of trades on each delivery month in previous week. In the second scenario positions are taken based on number of trades in previous trading day and in the third scenario positions are taken base on average number of trades in the last week. However, optimum hedge ratio should be considered in each delivery month. Static hedging ratio by use of minimum variance method and different econometrics models for in the sample and out of sample tests is calculated. Results show that three scenario has the ability to reduce risk. In the sample tests indicate that the first scenario with use of VAR model has the best efficiency and in the out of sample tests second scenario with Tarch model has the best efficiency. Manuscript profile -
Open Access Article
900 - Financial assessment of private and public insurance companies using Collaborative Interoperability and Shannon Entropy
Sepideh pourazad elaheh khamseh Shadi Shahverdiani mahnaz Ahadzadeh NaminThe insurance industry in Iran is growing, despite its long history of its presence in the Iranian economic market, has not yet been able to find a suitable penetration factor in the market.On the other hand, the increase of private companies and the increase of competi MoreThe insurance industry in Iran is growing, despite its long history of its presence in the Iranian economic market, has not yet been able to find a suitable penetration factor in the market.On the other hand, the increase of private companies and the increase of competition along with the unfavorable economic conditions of private sector actors in the industry and services sectors and the reduction of the share of insurance from the Iranian family of portfolios, due to other existing costs, made it harder for the insurance industry to work.In this paper, we will use the cross-over efficiency method in DEA based on the Shannon entropy, recently proposed by Sung and Liu (2016), to evaluate insurance companies in Iran. First, through interviews with experts in this field, the most important indicators of financial efficiency assessment were identified, which included 6 indicators. In the next step, in order to evaluate performance and ranking in the statistical society, 20 private and public insurance companies use cross-efficiency integration model and Shannon entropy. The ranking of insurance companies in Iran for the three consecutive years of 1393 to 1395. The results of the research indicate a complete ranking of insurance companies in Iran using the model presented in this paper Manuscript profile -
Open Access Article
901 - Selection of Fuzzy Multi-Purpose Portfolios Based on the Cross-Sectional Return Model of Data Envelopment Analysis in Tehran Stock Exchange
fazel mohammadi nodeh Ahmad ayoub mousaabadi masoud asadi abbas babaei Shaban MohammadiFuzzy multifunctional sets reduce the need for accurate data for decision making. Data Envelopment Analysis is a theoretical framework for performance analysis and performance measurement. Fuzzy increases the application of data envelopment analysis. Measuring the perfo MoreFuzzy multifunctional sets reduce the need for accurate data for decision making. Data Envelopment Analysis is a theoretical framework for performance analysis and performance measurement. Fuzzy increases the application of data envelopment analysis. Measuring the performance of companies with the help of data envelopment analysis can help investors in choosing a company. In this paper, the problem of selecting fuzzy portfolios in a multipurpose framework is examined. A comprehensive model for selecting multi-purpose portfolios in fuzzy environment is presented using a semi-variance model and a model for analyzing information development with cross-sectional returns. Data from 40 companies accepted in Tehran Stock Exchange and trapezoidal returns of 40 sheets of securities and the data required for inputs and output of data envelopment analysis were obtained from financial statements of companies from the beginning of 1396 to the end of 1396. 16 financial parameters were used. Sharp ratio, cross-sectional return model in Sharp ratio and multi-purpose firefighting algorithm for solving multi-purpose stock optimization model was used. Analysis was done with MATLAB software. The results showed that the proposed method in this research is more suitable for selection of fuzzy multipurpose portfolio than other methods and provides better results for performance analysis, efficiency and company selection for investment. Manuscript profile -
Open Access Article
902 - Content Analysis of Investment Efficiency Measurement Methods (In Internal Research)
Amir Dolatkhah Sayed Ali Vaez Mehdi BasiratAbstractThe researchers obtain deep insight into research by studying the literature on the subject. However, time and resources limit the scope of the study. Therefore, the current research aims to investigate and analyze the quantitative and qualitative content of met MoreAbstractThe researchers obtain deep insight into research by studying the literature on the subject. However, time and resources limit the scope of the study. Therefore, the current research aims to investigate and analyze the quantitative and qualitative content of methods of measuring investment efficiency. The statistical sample includes all articles published from the years 2009 to 2020 on the investment efficiency topic in the "www.sid.ir". The results showed that, IN 72 articles, 26 models have been modeled using 30 variables (in 121 repetitions). 55.6 percent (40 articles) have used models based on sales growth 15 articles (20.8 percent) have used QTOBIN. Also, 35 articles (48.61%) are without the use control variable. The dominant method is to use the univariate model of sales growth with a share of 32% (23 articles) of all articles. Because the results of data-based research are highly sensitive to variable selection and data quality, the results obtained from models based on sales growth and QTOBIN may be affected by factors such as inflation, the book value of assets, and weak market efficiency. Researchers should determine effective factors that are likely to lead to measurement error before choosing the variables of the research model. Manuscript profile -
Open Access Article
903 - The Relationship between Managers' Efficiency in Creating Operational Cash Flows on Real Earnings Management
Mohaddese Abedini Bahman Banimahd Mehdi Moradzadehfard Azam Shokri CheshmehsabziAbstractBusiness enterprise management should always look for opportunities to increase the value of the company. Without generating sufficient cash, new products cannot be produced and sold, therefore, the value of fim will not improve without generating sufficient ope MoreAbstractBusiness enterprise management should always look for opportunities to increase the value of the company. Without generating sufficient cash, new products cannot be produced and sold, therefore, the value of fim will not improve without generating sufficient operating cash. Therefore, the purpose of this research is to measure the efficiency of managers in creating operating cash flow based on data envelopment analysis, in line with the goals of financial reporting, and then examine the relationship between the efficiency score and real earnings management. The statistical population of the research is the companies listed in the Tehran Stock Exchange. Theoretical foundations and research data have been collected according to library studies. Multivariable linear regression was used for statistical analysis. The results of this research show that the efficiency of managers in creating operating cash flows during the research period is a downward trend. Also, the efficiency of managers in creating operating cash flows has a negative and significant relationship with real earnings management. Manuscript profile -
Open Access Article
904 - Managerial Efficiency, Adjustment Delay Stock Price and Stock Price Informational Efficiency
mahdi filsaraeiAbstractIn fact, the timeliness of price discovery refers to the speed of information reflected in prices. There is no reason for the same reflection speed of all information related to the company in the stock price. Also, there is no reason for the same speed of disco MoreAbstractIn fact, the timeliness of price discovery refers to the speed of information reflected in prices. There is no reason for the same reflection speed of all information related to the company in the stock price. Also, there is no reason for the same speed of discovering the stock price of all active companies in the market. The adjustment of the stock price is done so quickly that it is not possible to predict and earn additional profit through the available information. On the other hand, managers with higher ability are able to predict changes in economic conditions that can affect the company's activities. Also, in order to increase investors' confidence in the company, they provide them with more reliable information, so that information asymmetry is reduced. By reducing the information asymmetry, the stock price informational efficiency increases and the delay in the adjustment of the stock price decreases. Considering the importance of managers' efficiency, in this research, the effect of managers' efficiency on the stock prices information efficiency and the delay in stock price adjustments has been investigated. Using a sample of 113 companies accepted in the Tehran Stock Exchange and using multivariate regression to test the hypotheses, the results of the research show that increasing the managers' efficiency reduces the delay in stock price adjustment. In addition, the results showed a significant positive effect of managers' efficiency on the information efficiency of stock prices. Manuscript profile -
Open Access Article
905 - The Effective Factors on Efficient Audit Committee
یونس امجدیان رضا غلامی جمکرانیAbstract Audit committees are one of the main pillars of corporate governance, the efficiency of which is of considerable importance in achieving the goals of this system. The purpose of this study is to develop a model for evaluating the performance of audit committee MoreAbstract Audit committees are one of the main pillars of corporate governance, the efficiency of which is of considerable importance in achieving the goals of this system. The purpose of this study is to develop a model for evaluating the performance of audit committees on a local basis. The present research method was qualitative and data were collected through interviews with experts in the field of auditing. In the present study, the text of the initial interviews was studied according to the objectives of the research. The theme analysis method has been used so as to analyze the data .The results showed sixteen factors including: sufficient experience; having financial and non-financial experience; influence and power of audit committee members; presence of independent auditors in the audit committee; publishing annual reports of audit committee performance to shareholders; publishing report of board minutes; size The audit committee; scheduled reports to the board: reporting on past events; the number of audit committee meetings; tenured of audit committee; independence of the audit committee; the establishment of an efficient internal audit unit to corporate with audit committee; the establishment of an administrative procedure for reviewing documents; raising the awareness of the audit committee and providing additional training for audit committee members lead to audit committees. Manuscript profile -
Open Access Article
906 - The Relationship between the Quality of Accounting Information and Institutional Investment on Investment Efficiency in Banks Present in the Capital Market of Iran
Shahnaz mashayekh mona parsaei pariya askarzadehAbstractAccording to the theoretical concepts of financial reporting, the purpose of financial statements is to provide summarized and classified information about the financial status, financial performance and financial flexibility of the business unit, which is usefu MoreAbstractAccording to the theoretical concepts of financial reporting, the purpose of financial statements is to provide summarized and classified information about the financial status, financial performance and financial flexibility of the business unit, which is useful for a wide range of users of financial statements in making economic decisions. Achieving this goal requires that the information is firstly relevant and reliable and secondly comparable and comprehensible, in other words, accounting information must be of high quality. The current research aims to explore the relationship between the quality of accounting information and Institutional investment on the efficiency of investment in banks that are members of the Iranian capital market. In this research, the quality index of accounting information is the quality of accrual items. The statistical population of this research includes 19 member banks of the capital market. Research hypotheses have been tested using OLS regression according to company-year observations in a panel manner. The results of processing the regression models for the first hypothesis of the research indicated that the quality of accruals and Institutional investment has a significant relationship with investment efficiency; The results of the second hypothesis of the research showed that overinvestment has a significant effect on the relationship between the quality of accruals and Institutional investment with investment efficiency. Manuscript profile -
Open Access Article
907 - An algorithm for determining common weights by concept of membership function
S. Saati N. Nayebi -
Open Access Article
908 - The directional hybrid measure of efficiency in data envelopment analysis
A. Mirsalehy M. Rizam Abu Baker L. S. Lee Gh. R. Jahanshahloo -
Open Access Article
909 - Solving systems of nonlinear equations using decomposition technique
M. Nili Ahmadabadi F. Ahmad G. Yuan X. Li -
Open Access Article
910 - A generalized cost Malmquist index to compare the productivities of units with negative data in DEA
G. Tohidi S. Razavyan S. Tohidnia -
Open Access Article
911 - Two methods to obtain preferred efficiency for negative data (IS)
Hossein Abbasiyan mohamadjafar doostideilami -
Open Access Article
912 - Efficiency of Centralized Structures in Data Envelopment Analysis Ratio Models
Shabnam Razavyan -
Open Access Article
913 - A Three-Point Iterative Method for Solving Nonlinear Equations with High Efficiency Index
Mohammed waziri Yusuf Kabir Saminu -
Open Access Article
914 - The Position of Multiobjective Programming Methods in Fuzzy Data Envelopment Analysis
Parichehr zamani -
Open Access Article
915 - On D-efficiency of Reduced Models for Central Composite Experimental Designs within a Split-plot Structure
Yisa Yakubu Angela Chukwu Sule Ahmed -
Open Access Article
916 - IMPROVING THE SELECTION SYMMETRIC WEIGHTS AS A SECONDARY GOAL IN DEA CROSS-EFFICIENCY EVALUATION
Ghasem Tohidi Maryam Khodadadi Elham Rostamiyan -
Open Access Article
917 - EFFICIENCY MEASUREMENT OF NDEA WITH INTERVAL DATA
S. Keikha- Javan M. Rostamy-Malkhalifeh -
Open Access Article
918 - OPTIMAL RESOURCE ALLOCATION IN DEA WITH INTEGER VARIABLES
A. Masoumzadeh N. Moradmand Rad -
Open Access Article
919 - APPROXIMATE ALGORITHM FOR THE MULTI-DIMENSIONAL KNAPSACK PROBLEM BY USING MULTIPLE CRITERIA DECISION MAKING
Majid Darehmiraki -
Open Access Article
920 - ADOMIAN DECOMPOSITION METHOD AND PADÉ APPROXIMATION TO DETERMINE FIN EFFICIENCY OF CONVECTIVE SOLAR AIR COLLECTOR IN STRAIGHT FINS
Tabet Ismail M. Kezzar K. Touafe N. Bellel S. Gherieb A. Khelifa M. Adouane -
Open Access Article
921 - Determining the optimum planting date of chickpea in Kermanshah province using modeling approach
seyedreza amiriCrop simulation models are useful tools for determination of optimum strategies for crop management and sustainability of the agricultural ecosystems. The aim of this study was to evaluate the effect of different planting dates on grain yield, biological yield and water MoreCrop simulation models are useful tools for determination of optimum strategies for crop management and sustainability of the agricultural ecosystems. The aim of this study was to evaluate the effect of different planting dates on grain yield, biological yield and water use efficiency of chickpea (Bivanij cultivar) under rainfed conditions at five locations in Kermanshah province. For this purpose, the SSM-Chickpea model along with historical daily weather data for the period of 1985–2014, were used. The results showed that early sowing date increased leaf area and biological yield and eliminated terminal drought stress. The highest and lowest grain yield was obtained on 20 Febraury and 4 March sowing dates with 1269 and 446 kg ha-1, respectively. The delayed sowing date substantially reduced grain yield by 64%. Furthermore, the highest and lowest biological yield was obtained on 20 Febraury (3448 kg ha-1) and 21April (2217 kg ha-1). On the other hand, the greatest water use efficiency was obtained on 20 Febraury (6.6 kg ha-1 mm-1). Overall, early sowing dates resulted in increased duration of growing season and seasonal rainfall which concurrency resulted in higher yield and WUE. Hence, early sowing chickpea is recommended over late sowing in arid and semi-arid areas of the study locations which are facing with lack of adequate and poor distribution of rainfall. Manuscript profile -
Open Access Article
922 - Effect of Plant Density on Radiation Use Efficiency, Extinction Coefficient and Grain Yield of Two Sunflower Cultivars in Northern Khuzestan
fatame zarghami mehdi sadeghiPlant density is one of the important factors influencing the amount of light reaching to plants. An experiment was carried out at agricultural research farm of Azad university of Dezfol (Sanjer region) in 2013 and 2014. The experiment design was factorial in a randomiz MorePlant density is one of the important factors influencing the amount of light reaching to plants. An experiment was carried out at agricultural research farm of Azad university of Dezfol (Sanjer region) in 2013 and 2014. The experiment design was factorial in a randomized complete block with three replications. Plant densities of (4.5, 5.5, 6.5 and 7.5 plant/m2). Two sunflower cultivars of Shahroodi and Domsefid were cultivated. The results showed that the effect of plant density was significant on leaf area index (LAI), Radiation use efficiency (RUE), Grain yield, extinction coefficient (K) and light interception (LI). The highest LAI and RUE were 4.24 and 1.92(MJ/M2/S) for Shahroodi cultivar, respectively. The highest K and LI in Domsefid cultivar were 0.137 and 43.4% respectively. The increase in plant density of both cultivars resulted in increasing the RUE. The highest grain yield for Domsefid cultivar (6.5 plant/m2) was 5249.9 kg/ha. The highest grain yield for Domsefid cultivar (6.5 plant/m2) was 5249.9 kg/ha. The highest grain yield for Domsefid cultivar (6.5 plant/m2) was 5249.9 kg/ha. Manuscript profile -
Open Access Article
923 - Effect of irrigation regime and phosphorus application methods on phosphorus recovery efficiency and grain yield of two rapeseed cultivars
R. Baladi E. Bijanzadeh R. NaderiTo investigate the effects of water deficit and chemical phosphorus (P) application methods on yield and phosphorus recovery efficiency of two rapeseed cultivars, a field experiment was conducted at Agriculture College and Natural Resources of Darab, Shiraz University d MoreTo investigate the effects of water deficit and chemical phosphorus (P) application methods on yield and phosphorus recovery efficiency of two rapeseed cultivars, a field experiment was conducted at Agriculture College and Natural Resources of Darab, Shiraz University during 2013-2014. Treatments including irrigation regimes (common irrigation, cutting off irrigation at mid-flowering and mid-silique formation stages), P application methods (without P, broadcast and band) and rapeseed cultivars (Sarigol and RGS) were assigned in main plots, sub plots and sub sub plots, respectively. Results showed that cutting of irrigation at common irrigation with 25.31 seed numbers per silique had significant differences with mid-flowering with 22.25 seed numbers per silique and cutting of irrigation at mid-silique formation with 22.94 seed numbers per silique . In cutting of irrigation at mid-flowering and band application of P, RGS had the highest biological yield (12435 hg/ha). Common irrigation had the highest (11.02 kg/ha) and cutting of irrigation at mid-flowering had the lowest (5.95 kg/ha) P absorption amount. Overall, P recovery efficiency in broadcast and band application methods of P was 1.09% and 1.38%, respectively. RGS cultivar compared to Sarigol had maximum grain yield under cutting of irrigation at mid-flowering (3830 kg/ha) and mid-silique formation conditions (5428 kg/ha). RGS had the highest rate of assimilate remobilization under cutting off irrigation at mid-flowering and band application of P and it can prevent a further reduction in grain yield when exposed to late season water shortage. Manuscript profile -
Open Access Article
924 - Response of various bread wheat genotypes to different planting method and terminal drought stress at southern Fars province
Vahid Barati Ehsan bijanzadeh Ali Barati Zahra ZinatiFars is the largest wheat producer province in Iran. In terms of planted area and output, wheat (Triticum aestivum L.) is the number one crop in Fars and currently almost all irrigated wheat is conventionally planted in narrow spaced rows or broadcasting on the flat and MoreFars is the largest wheat producer province in Iran. In terms of planted area and output, wheat (Triticum aestivum L.) is the number one crop in Fars and currently almost all irrigated wheat is conventionally planted in narrow spaced rows or broadcasting on the flat and is irrigated by flood irrigation within bordered basins. Conventional flat planting for wheat has some disadvantages. In order to study the response of wheat genotypes to flat planting and bed planting under different irrigation regimes, experiments were conducted in Darab region at two consecutive growing seasons. The experimental design was split-split plot with three replications. The main factor was two irrigation regimes (irrigation was applied normally and irrigation cut off after flowering stage). Sub plots were two planting methods (FP: flat planting, BP: bed planting). The sub-sub plots were four different wheat genotypes (Shiroudi-local check, Chamran 2, Aflak and a promising line: S-82-10). Based on results, post anthesis drought stress decreased grain yield and its components in all genotypes. The main reason of grain yield reduction in stress condition was reduction in grain number per spike and grain weight. The Aflak cultivar produced the highest grain yield (5712 kg ha-1) in non-stress condition while the highest grain yield in drought stress (3148 kg ha-1) condition was belonged to Shiroudi cultivar. The biological yield and harvest index were positively affected by bed planting. The bed planting method improved WUE (water use efficiency) and grain yield by more than 21% and 16%, respectively. Manuscript profile -
Open Access Article
925 - Effect of integrate nutrition of chemical and animal manures on yield and yield components of spring safflower
M. Ghanbari M. Mirzakhani A. HashemiIncreasing overuse of chemical fertilizers has been causes environmental pollution, degradation of soil and crops. In order to study the effect of integrated application of chemical and animal manures on yield and yield components of spring safflower, the study was carr MoreIncreasing overuse of chemical fertilizers has been causes environmental pollution, degradation of soil and crops. In order to study the effect of integrated application of chemical and animal manures on yield and yield components of spring safflower, the study was carried out in Fatholmobin field of Kashan in 2014. A factorial arrangement of treatment in a randomized complete block design with three replications was used. Chemical fertilizer treatment (Control, 50 kg ha-1 of nitrogen + 25 kg ha-1 of P2O5, 100 kg ha-1 of nitrogen + 50 kg ha-1 of P2O5, 150 kg ha-1 of nitrogen + 75 kg ha-1 of P2O5) and animal manure treatment (Control, 20 ton ha-1, 40 ton ha-1), were assigned in plots. Stem height, number of branches, number of bolls per plant, grains per boll, boll harvest index, 1000 grain weight, grain yield, protein content, phosphorus absorption, nitrogen agronomy efficiency and nitrogen use efficiency were determined. Results indicated that the interaction effects between chemical fertilizer and animal manure on 1000 grain weight, grain yield, protein content, phosphorus absorption, nitrogen agronomy efficiency and nitrogen use efficiency were significant. The highest and lowest of grain yield 1031 and 268 kg ha-1 were obtained in 150 kg ha-1 of nitrogen + 75 kg ha-1 of P2O5 + 20 t ha-1 of animal manure and without application of the chemical and animal manure, respectively. Manuscript profile -
Open Access Article
926 - Evaluation of Integrated System management in Organic, Biological and Chemical Inputs on Yield Characteristics and nitrogen Efficiency of German Chamomile
عباس ملکی فاطمه جهانی علیرضا پازکیIn order to study the effect of chemical, organic and biological fertilizer on yield and its components of chamomile, a split split plot experiment carried out in a randomized complete block design in three replications. This research had 3 factors include of nitrogen f MoreIn order to study the effect of chemical, organic and biological fertilizer on yield and its components of chamomile, a split split plot experiment carried out in a randomized complete block design in three replications. This research had 3 factors include of nitrogen fertilizer at four levels (0, 50, 100 and 200 kg per ha)in main plits, manure at two levels (with 30 tons per hectare use and non-use) in subplots and nitroxin as biological fertilizer in two levels (inoculated and non-inoculated seed) as sub-sub plot were allocated in experimental plots. The results showed that the treated manure, at the rate of 66 percent and the lowest essential oils in the treatment of manure at the rate of 50.8 per cent, respectively. However, in observing inoculation with nitroxin fertilizer, essential oils in the treatment of 64.6 percent and the lowest rate of inoculation was 52.2 percent. The results showed that the lowest nitrogen efficiency obtained in non-inoculated seed treatment and application of 200 kg nitrogen fertilizer about of 1.7 was and the most efficient use of nitrogen was obtained in 50 kg of nitrogen and inoculated seeds about of 5.4. Among the examined three types of fertilizer, bio-fertilizer of nitroxin had a greater effect on traits. Integrated application of organic, biologic and chemical fertilizer to achieve of sustainable agriculture causes to high yield quality and ecosystems protection. Manuscript profile -
Open Access Article
927 - Effects of sulfur, vermicompost + Thiobacilus bacteria on some chemical properties of calcareous soil and phosphorus use efficiency of black seed
S.M. Seiedi P. Rezvani Moghadam M. Khaje Hosseini حمید شاهندهIn order to investigate the effects of increasing soluble phosphorus on seed production and phosphorus use efficiency of black seed (Nigella sativa L.) in a calcareous soil, a greenhouse experiment with three replications was conducted at Faculty of Agriculture, Ferdows MoreIn order to investigate the effects of increasing soluble phosphorus on seed production and phosphorus use efficiency of black seed (Nigella sativa L.) in a calcareous soil, a greenhouse experiment with three replications was conducted at Faculty of Agriculture, Ferdowsi University of Mashhad, Iran, in 2013. A complete randomized design was used based on factorial arrangement. The fertilizer resources (control, vermi compost, sulfur, vermicompost + sulfur, vermicompost + Thiobacilus bacteria, sulfur + Thiobacilus bacteria and vermicompost + sulfur + Thiobacilus bacteria) and three levels of phosphorus (0, 30 and 60 kg.ha-1) were the first and second experimental factors, respectively. Sulfur + Thiobacilus bacteria and vermicompost + sulfur + Thiobacilus bacteria significantly decreased soil pH (by 0.85 and 0.80) and increased EC and available phosphorus of soil (more than 2.5 times), respectively. in condition of no phosphorus application, sulfur or sulfur + Thiobacilus bacteria had significantly effects on increasing the soil available phosphorus. Vermicompost + sulfur + Thiobacilus bacteria had the highest total plant dry weight and seed weight per plant. However, the lowest phosphorus uptake efficiency (15.31%) was observed in control treatment. In a calcareous soil, sulfur application individually or in combination with vermicompost treatment can be suitable approach in decreasing the problems caused by applying of chemical phosphorus fertilizers. Manuscript profile -
Open Access Article
928 - Studying the dry matter yield and water use efficiency of forage sorghum under water deficit and applying superabsorbent polymer
mansour fazeli rostampourIn order to investigate the possibility of decreasing forage sorghum (Sorghum bicolor L. var speedfeed) water requirements applying of superabsorbent (SAP), without decreasing the dry matter yield and increasing the water use efficiency, and also to investigate the econ MoreIn order to investigate the possibility of decreasing forage sorghum (Sorghum bicolor L. var speedfeed) water requirements applying of superabsorbent (SAP), without decreasing the dry matter yield and increasing the water use efficiency, and also to investigate the economic efficiency of applying superabsorbent (SAP), this experiment was conducted in Dashtak region of Zahedan during 2013 and 2014 seasons in a split-split plot with four irrigation regimes, providing 40, 60, 80 and 100% of the water requirements of sorghum, calculated from pan evaporation as main plots, four amounts of SAP )0, 75, 150 and 225 kg ha-1( as subplots and cutting as sub-subplots based on a completely randomized block design with three replications. The results indicated that the effect of irrigation regimes, SAP levels and their interaction effects of the two factors on dry matter yield, water use efficiency, and economic efficiency were significant. The regression models estimated showed that applying SAP in 100% ETc treatment had no effect on this trait but in the other irrigation treatments caused an increased the dry matter yield and water use efficiency. Therefore, applying 75 kg SAP per hectare along with 20% decrease in the sorghum’s water requirement in arid regions, the dry matter yield and water use efficiency is maintained similar to 100% sorghum’s water requirement. Also the greatest economic efficiency of applying SAP was secured at 75 kg SAP per hectare SAP level and 80% of sorghum’s water requirement. Manuscript profile -
Open Access Article
929 - Effects of nitrogen and potassium levels on some qountitative and qualitative traits and agronomical fertilizer use efficiency in lentil cultivation
Roghayyeh Zabihi-e-Mahmoodabad Mohammah HassanzadehIn order to investigate of the effects of nitrogen and potassium levels on nitrogen and potassium uptake, agronomical use efficiency and protein content of lentil, a field factorial experiment design in the base of complete random block in three replications was carried MoreIn order to investigate of the effects of nitrogen and potassium levels on nitrogen and potassium uptake, agronomical use efficiency and protein content of lentil, a field factorial experiment design in the base of complete random block in three replications was carried out in the research field of Islamic Azad University of Ardebil branch during 2015-2016. Factors include potassium fertilizer rate with three levels (0, 35 and 70 kgK/ha) the form of potassium sulphate source and nitrogen fertilizer rate with three levels (0, 30 and 60 kgN/ha) the form of granulation and the cultivated variety was the native variety. The results showed that in the all of traits, (Except of agronomical nitrogen and potassium used efficiency) increasing of nitrogen and potassium fertilizer rate increased the studied traits. The main effects of each fertilizers, cased to increase of yield and yield components and precentag and the amount absourbtion of potassum and nitrogen fertilizer traits, so that the highest amount of these traits was obtained in 70 kgK/ha potassium fertilizer and 60 kgN/ha nitrogen fertilizer. The interaction effects between potassium and nitrogen fertilizer on grain yield, agronomic efficiency of K fertilizer, protein yield of grain and grain nitrogen uptake were significant. The results of this study showed that simultaneous use of nitrogen and potassium fertilizer was positive reactions of lentil to fertilizers and increased seed yield.Totally Co-application of these two fertilizers to increase the quantity and quality of this plant under this condition, is recommended. Manuscript profile -
Open Access Article
930 - The rol of fungus Piriformospora indica on improving the grain related parameters of two native and improved rice cultivars under limited irrigation regimes
ABED AGHAJANI DELAVAR mehdi parsa Hemmatollah Pirdashti Mohammad Kafi Valiollah BabaeizadIn order to evaluate the rol of mycorrhiza-like fungus Piriformospora indica on rice grain yield and water use efficiency under different limited irrigation regimes a field experiment was conducted in split factorial design with three replicates during 2014. Treatments MoreIn order to evaluate the rol of mycorrhiza-like fungus Piriformospora indica on rice grain yield and water use efficiency under different limited irrigation regimes a field experiment was conducted in split factorial design with three replicates during 2014. Treatments were different irrigation methods at three levels (flooding, flooding after falling water depth less than 10 and 20 cm of soil surface) in main plot, two levels of P. indica inoculation (control and inoculation of six days old seedlings) and two rice cultivars (Tarom-Hashemi and Shiroudi) in sub plots as factorial. Results showed that maximum grain yield was obtained in Shiroudi cultivar in flooding (7801 kg/ha), followed by -10 and -20 cm irrigation regimes (5592 and 5575 kg/ha, resectively). This reduction in Tarom-Hashemi cultivar, however, was only significant where falling water depth was less than 20 cm of soil surface and yield loss was about 18 percent as compared to the flooding treatment. Nevertheless, P. indica inoculation in Shiroudi cultivar increased biological yield by 8 %, as compared to Tarom-Hashemi cultivar. Water use productivity and efficiency amounts in limited irrigation regimes was increased significantly in falling water depth less than 20 cm of soil surface treatment by 55 and 57 % , respectively as compared to flooding treatment. In conclusion, results represented a positive effect of coexistence between P. indica and rice plants particularly to ameliorate water deficit negative effects. Manuscript profile -
Open Access Article
931 - Study the effect of the additive series intercropping of broad leaf vetch (Vicia narbonensis L.) and barley (Hordeum vulgare L.) on floristic composition control of weeds
Khosro Azizi Ali Reza Daraeimofrad Behrouz Nasiri Mohammad FeizianTo determine the effect of intercropping on the growth and development of weeds, the experiment in the Agricultural Research Station of Lorestan University 2014-15 and 2015-16 as rain fed was conducted in factorial randomized complete block design (RCBD) with three repl MoreTo determine the effect of intercropping on the growth and development of weeds, the experiment in the Agricultural Research Station of Lorestan University 2014-15 and 2015-16 as rain fed was conducted in factorial randomized complete block design (RCBD) with three replications, in one place with weeds factor in 4 levels (full weeding, one-time weeding, two-time weeding and non-weeding or control) and additive series intercropping factor in 5 levels, 0:100 (sole cropping of barley), 40:100 (broad leaf vetch: barley), 70:100, 100:100 and 100:0 (sole cropping of vetch). Intercropping of vetch: barley in comparison with sole cropping treatments, by increasing weed control efficiency (WCE) was represent reducing of the species number, its growth and development, On the other hand the year factor, on the role of the intercropping system and completing the effect of this method was effective on growth and development of weeds, So in the first and second years, ratios of 100:100 and 70:100 (vetch: barley) in preventing the development of natural flora, were known to the right combination. Manuscript profile -
Open Access Article
932 - Effect of nitrogen fertilizer levels on some agronomic and physiological traits of wheat cultivars (Triticum aestivum)
Ali Bozorgi Hossein Abad Farzad Mondani Mohsen Saeidi Hasan Heydari Alireza BagheriIn order to evaluate radiation absorption and use efficiency for wheat cultivars under effect of nitrogen fertilizer levels, a split-plot experiment based on the randomized complete block design with three replications was conducted during 2015-2016. The treatments were MoreIn order to evaluate radiation absorption and use efficiency for wheat cultivars under effect of nitrogen fertilizer levels, a split-plot experiment based on the randomized complete block design with three replications was conducted during 2015-2016. The treatments were four nitrogen fertilizer levels (90, 180, 300, 360 kg.ha-1 of urea) as main-plot and four wheat cultivars (Parsi, Zare, Pishgam and Orum) as sub-plot. The evaluated traits were included leaf area index, radiation absorption, crop growth rate, relative growth ratio, leaf dry weight, stem dry weight, total dry weight, radiation use efficiency and grain yield. The results showed that Pishgam cultivar compared to other cultivars had the most satisfying in terms of evaluated characteristics under nitrogen fertilizer rate treatments. By increasing the rate of urea fertilizer from 90 to 360 kg.ha-1, maximum leaf area index, radiation absorption, crop growth rate, relative growth ratio, leaf dry weight, stem dry weight, total dry weight and grain yield were improved. The most (8950 kg.ha-1) and the lowest (1264 kg.ha-1) grain yield weight were observed for Pishgam cultivar in 360 kgurea. ha-1 treatment and for cultivar variety in 90 kgurea. ha-1 treatment, respectively. The results also showed that the highest and the lowest radiation use efficiency were related to Pishgam cultivar (1.59 g.MJ-1) in 360 kgurea.ha-1 treatment and Orum cultivar (0.67 g.MJ-1) in 90 kgurea.ha-1 treatment, respectively. It seems that rising of nitrogen fertilizer by improvement of photosynthesis and crop growth rate caused to pick up dry matter accumulation and finally increased wheat radiation use efficiency. Manuscript profile -
Open Access Article
933 - Evaluation of genotypic variation for seed iron content and concentration in barley genotypes under dryland conditions
mehdi feizi mahmood solouki behzad sadeghzadeh baratali fakheri seyed abolghasem mohammadiDrought stress and iron (Fe) deficiency are abiotic stress factors limiting crop production and its quality, especially in rainfed areas. With the aim of evaluation of genotypic variation for Fe efficiecny, 121 barley genotypes during the growing season of 2015-2016, a MoreDrought stress and iron (Fe) deficiency are abiotic stress factors limiting crop production and its quality, especially in rainfed areas. With the aim of evaluation of genotypic variation for Fe efficiecny, 121 barley genotypes during the growing season of 2015-2016, a research farm was carried out at the agricultural research institute of the dryland (Maragheh) were studied under rainfed field conditions. . The experiment was conducted in square lattice. Based on ANOVA, there was significant differences among genotypes for seed Fe concentartion and content traits. The high range of variation for these traits showed that there is a great genotypic variation among barley genotypes. The existance of high general heritability (h2) for seed Fe concentration and content could be helpful in breeding for these traits under different environments. Seed Fe concentration had significant and positive correlation (r=0.63**) with seed Fe content. In short, the result of this study revealed the great genotypic variation among barley genotypes for Fe absorption and accumulation in seed. Moreover, the efficient genotypes could alleviate drought stress that will result in higher grain yield with Fe-dense grains under cold dryland conditions. Manuscript profile -
Open Access Article
934 - Study the effect of methanol and ascorbic acid foliar application on yield and physiological traits related to water relationships peanut under rainfed condition
Maral Moradi tochaee Saeid Saifzadeh Hamid Reza Zakerin Seyed Alireza ValadabadiIn order to investigate the effect of foliar application of methanol and ascorbic acid on growth and yield of peanut (varNC2) in during 2015 year, an experiment was carried out in two locations of Astaneh Ashrafiyeh and Kiashahr. A randomized complete block design with MoreIn order to investigate the effect of foliar application of methanol and ascorbic acid on growth and yield of peanut (varNC2) in during 2015 year, an experiment was carried out in two locations of Astaneh Ashrafiyeh and Kiashahr. A randomized complete block design with three replications on a factorial experiment with two factors including four levels of methanol include 0 (Control), 7, 14, and 21 volumetric percentage and four levels of ascorbic acid include (0 Control), 250, 500, and 750 mg/lit was used. Methanol and ascorbic acid foliar applications were done two times during the growing season with 15 days intervals and spraying started in 72 code stage of BBCH-scale. Measured traits in this experiment were consisted of: pod yield, seed yield, biological yield, protein yield, oil yield, pod water use efficiency, chlorophyll, leaf relative water content and leaf osmotic potential. The results showed the simple effects of methanol and ascorbic acid foliar applications on measured traits were positive significant. The maximum amount on measured traits were observed by two foliar application of methanol treatments (14 and 21 % (v/v)) and two foliar application of ascorbic acid treatments (500 and 750 mg/l) during experiment. In comparison to the control (without foliar application methanol), methanol application at 14 and 21 % v/v levels increased seed yield up to 20.15% and 24.65% respectively. The 17.36% and 20.67% amount of seed yield increase at 500 and 750 mg/l of ascorbic acid application respectively, in comparison to the control (without foliar application ascorbic acid). Manuscript profile -
Open Access Article
935 - Evaluation of dry matter remobilization of assimilates materials amount and their contribution to the yield of different bread wheat varieties and lines in Ardabil
Roghayyeh Zabihi-e-Mahmoodabad Ahmad Tobeh Marefat Ghasemi Shahzad Jamaati-e-SomarinIn order to evaluation of dry matter remobilization of assimilates materials amount and their contribution to the yield of different bread wheat varieties and lines in Ardabil, an experiment in randomized complete block design with three replications with ten cultivars MoreIn order to evaluation of dry matter remobilization of assimilates materials amount and their contribution to the yield of different bread wheat varieties and lines in Ardabil, an experiment in randomized complete block design with three replications with ten cultivars (Includes: Uroom, Zare, MV-Magdalena, Soissons, MV-Toborzo, Mihan, Pishgam, FD-11111 and FD-12073) was done in Research Station of Agriculture and Natural Resources of Ardabil in 2015-2016. Analysis of variance showed a significant difference between the lines and cultivars studied, for different traits. FD-11111 line has the highest number of grain per spikes, grain yield per square meter, the share in the filling and grain growth (7417.9 grams per square meter).The MV-bodri variety has the highest biological yield per square meter, the percentage of share the transfer process dry matter from shoot (19.723%) in the yield and maximum transfer of dry matter from total of shoots to the grain. The MV-Magdalena variety also has the lowest biological yield and highest harvest index, the highest percentage (47.797%) of dry matter remobilization efficiency of shoots and with 3.57 percent was the highest current photosynthesis efficiency. The highest current photosynthesis contribution in Zare cultivar (89.923 grams per square meter) that has the lowest proportion of dry matter remobilization was obtained. So generally can be said that was much higher current photosynthesis contribution in increasing grain yield, and FD-11111 line between studied genotypes, was the best lines. Manuscript profile -
Open Access Article
936 - Evaluation of the effect of growth stimulating bacteria on the yield and efficiency of wheat water consumption under the influence of irrigation rate and method
ashkan rostamian payam moaveni mehdi sadeghi shoae Hamid Mozafari faezeh rajabzadehThis research evaluated the reaction of wheat against different moisture stresses and different irrigation methods, as well as the reaction to growth-promoting bacteria in terms of different traits related to yield and water use efficiency during two crop years. The exp MoreThis research evaluated the reaction of wheat against different moisture stresses and different irrigation methods, as well as the reaction to growth-promoting bacteria in terms of different traits related to yield and water use efficiency during two crop years. The experimental factors include the irrigation regime with three levels (irrigation at 40% of available moisture discharge during the entire growth period (normal), normal irrigation until pollination and no irrigation up to 60% of available moisture discharge until the end of the growth period, irrigation until pollination and stop irrigation until the end of the growth period), irrigation methods with 5 levels (regular leakage, leakage of one furrow in the middle of variable, leakage of one furrow in the middle of constant, rain, type (strip-drop)) and the third factor of growth-increasing bacteria with There were two levels (non-use and use (combination of Microbacterium + Azobacter + Azosperlium + Pseudomonas). The results showed that the factor of irrigation regime had a significant effect on biological performance and grain yield, so that the second and third irrigation regimes (respectively with 7.89 and 4.70 tons per hectare) reduced these traits. Different irrigation methods had an effect on different quantitative and qualitative traits, but the most efficient water consumption was achieved in the tip irrigation method with a rate of 3 kg/m3. The use of bacterial integration increased the biological yield and grain to the extent of 9.79 and 13.51 percent. Manuscript profile -
Open Access Article
937 - Effect of partial rootzone drying (PRD) and application potassium and zinc fertilizer on water use efficiency on corn
H.R. Ebrahimi H. Heydari Sharifabad Sh. Lak A. Naderi A. ModhejInnovations for saving water in irrigated agriculture and thereby improving water use efficiency are of paramount importance in water-scarce regions. Therefore, to see how restricted irrigation systems and different potassium and zinc fertilizer affect water use efficie MoreInnovations for saving water in irrigated agriculture and thereby improving water use efficiency are of paramount importance in water-scarce regions. Therefore, to see how restricted irrigation systems and different potassium and zinc fertilizer affect water use efficiency and yield of corn, an experiment was conducted in an arid area in Marvdasht, Iran in 2012. A split-Factorial experimental design was used based on a complete randomized block design with three replications. The main plots consisted of two irrigation methods: FI (full irrigation) and partial rootzoon drying (PRD). Each subplot received three rates of K fertilizer application: 0, 2.5 or 5 kg ha-1 and three rates of Zn fertilizer application: 0, 2.5 or 5 kg ha-1 .The results showed that the plots receiving the full irrigation resulted in significantly higher grain yields, 1000-kernel weight and grain number per cob than PRD treatment. However, the highest WUE and IWUE were obtained in PRD, 5 kg K ha-1 and 5 kg ZN ha-1 and the lowest one was found in the FI treatment .In general, PRD irrigation method at high level of potassium and zinc fertilizer improved WUE and decreased WU in corn to 40% in an arid region. Manuscript profile -
Open Access Article
938 - Physiological Responses of Some Rootstocks and Interspecific Hybrids of Pistachio to Cold Stress under Greenhouse Conditions
Hossein Sajadian Mansoore Shamili Hossein Hokmabadi Ali Tajabadipour Hojjat Hasheminasab -
Open Access Article
939 - Effects of Various Irrigation Levels and Biochar-Based Fertilizers on Peanut Production
Mahmoud M. Abbas Khalood W. Abooud Amjed Qasim Mohammed Sura Hasan Al-Zubaidi A'laa Hassan Abdul Hussain Noora M. Hameed Ahmed Ayoob Ibrahim Kahtan A. Mohammed Maytham T. Qasim Heba Takleef al salami Salam Ahjel Kholoud Ahmad batayneh -
Open Access Article
940 - Decomposition of Total Factor Productivity Growth of Pistachio Production in Rafsanjan Region of Iran
Alireza Rashidi Sharifabadi Hossein Mehrabi Boshrabadi -
Open Access Article
941 - Matrix analysis of corrosion inhibition phenomena: Theoretical technique for inhibitor prediction and pre-selection
Mohsen Lashgari Mohammad-Reza Arshadi Gholam-Abbas Parsafar -
Open Access Article
942 - The Model of Export Efficiency through New Entry Strategies Based on a Resource-Based View
Mojtaba Ramazani reza nasrollahi saeedloProviding and allocating the necessary resources from the managers to the export activities will provide significant assistance for the export program of the companies. The increase in profitability leads to improved productivity and brings about employment for the comm MoreProviding and allocating the necessary resources from the managers to the export activities will provide significant assistance for the export program of the companies. The increase in profitability leads to improved productivity and brings about employment for the community. Therefore, it is necessary to pay close attention to domestic and environmental resources in the development of exports. Accordingly, the purpose of this paper is to develop a model of export-efficiency pathway through the strategies of entering new markets based on a resource-based view. This research was based on the purpose of the applied and based on the method of doing the descriptive work. The research sample consisted of 143 companies. In order to collect data in this research, a questionnaire and documents of companies have been used. The completed questionnaires were distributed among the statistical community after ensuring its validity and reliability. In order to analyze the data in this study, confirmatory factor analysis with varimax rotation, correlation coefficient and path analysis have been used. The results of the research show that the choice of input strategy on the export efficiency of the companies has had a positive and significant effect. Also, the results of the research show that the characteristics of the company and the product, the characteristics of the exporter market and the characteristics of the host market can affect the influence strategy. Manuscript profile -
Open Access Article
943 - The Effect of Goods market Efficiency on Economic Growth in Selected Asian Countries
Naghmeh honarvar homayoun ranjbar sara ghobadiImproving efficiency and productivity has an impact on the main economic, social and political phenomena of societies, such as reducing the level of inflation, increasing the level of public welfare, increasing the level of employment and increasing competitiveness. Eff MoreImproving efficiency and productivity has an impact on the main economic, social and political phenomena of societies, such as reducing the level of inflation, increasing the level of public welfare, increasing the level of employment and increasing competitiveness. Efficiency explains the degree of success of an economic unit or a country in the optimal use of inputs to produce output in comparison with other economic units and other countries, therefore, examining the effects of efficiency on macroeconomic variables is very important. Therefore, the aim of this study is to analyze the effects of the goods market efficiency pillar in the global competitiveness index on economic growth with an emphasis on the factors affecting this efficiency (technology, trade and investment) in Asian countries with a moderately high competitiveness index during the period of 2008-2018. For this purpose, the effects of goods market efficiency on the economic growth of these countries were investigated using the panel vector error correction model (PVECM). In general, the results indicate that the positive shock of this type of efficiency (improving the efficiency of the goods market) in the medium and long run leads to an increase in the economic growth rate and a decrease in the unemployment rate. Also, the results showed that the most effective variable on the efficiency of the goods market is investment, which has the greatest impact on the efficiency of the goods market in the long run. Manuscript profile -
Open Access Article
944 - Investigating the role of economic growth in the effect of oil revenue shock and exchange rate on the efficiency of Iran's banking network (Self-vector regression)
بهار حافظی Neda Asadollahzadeh Jafari sayed mohsen khalifeh soltsniIn the present study, the impact of positive and negative shocks of oil revenues, inflation and exchange rate in different economic growth states on the efficiency of the banking network using threshold structural vector autoregression model in the period of 1398:4-1387 MoreIn the present study, the impact of positive and negative shocks of oil revenues, inflation and exchange rate in different economic growth states on the efficiency of the banking network using threshold structural vector autoregression model in the period of 1398:4-1387:1 It was discussed seasonally, according to the results, the effect of a positive shock to oil revenues in economic recession and boom is similar to the efficiency of the banking network, and it had a positive effect in the short term and a negative effect in the medium term. But the effect of positive shock to inflation and exchange rate on banking efficiency depends on different regimes of economic growth. The positive shock of inflation in the recession has had a negative effect in the short term and a positive effect in the medium term on the efficiency of the banking network. In the conditions of prosperity, inflation has had a positive effect on the efficiency of the banking network in the short and medium term. The positive shock of the exchange rate in recessionary conditions has only a short-term negative effect on the efficiency of the banking network, but in the conditions of prosperity, the positive shock of the exchange rate has a positive effect on the efficiency of the banking network in the short term and a negative effect on the efficiency of the banking network in the medium term. Manuscript profile -
Open Access Article
945 - Technical Efficiency Estimation at Public and Private Sector Industries at Iran by Using stochastic Frontier Analysis Method
M. Sayadi K. AzarbaijaniCoordination, cooperation and task allocation, based on the efficiency index between market mechanism and government is a general and long run rule that each society considerers it regarding their social, political and cultural values for achieving the optimal ratio bet MoreCoordination, cooperation and task allocation, based on the efficiency index between market mechanism and government is a general and long run rule that each society considerers it regarding their social, political and cultural values for achieving the optimal ratio between the state and market combination. Regarding crucial role of private sector in efficient and compatible product and also with respect to importance of private sector development, in this study after investigating public performance and privatization trend using SFA, we estimate and compare technical efficiency in private and public subsector. Model's parameters are estimated by MLE within 1373-1384. Results show that technical efficiency estimation of all 6 private industry sectors trend is smooth but this trend has tangible decrease in public sector. Public efficiency average was lower than the same private subsector over period of our study except for first 3 years Manuscript profile -
Open Access Article
946 - Study of Radiation Use Efficiency of Autumnal Sugar Beet under Variable Irrigation Regimes and Nitrogen Rates Management
MOSTAFA HOSSEINPOUR SEYED HOSSEIN MAHMOODI NEZHAD DEZFULLY ALIREZA PAKNEZHAD -
Open Access Article
947 - Updating Nutrient Requirements for Rice-Based Cropping Systems in Non-Saline Tidal Flood Ecosystem of Bangladesh
P. K. SAHA M. N. ISLAM M. S. ISLAM -
Open Access Article
948 - Evaluation of Energy Efficiency, Emission of Greenhouse Gases and Production Function in Olive (Olea europaea) Production in Ilam Province, Iran
MEYSAM MORADI ABBAS MALEKI SADEGH BAHAMIN SHOHREH AZIZI SHAMILA ROUHANI SARA BEIGZADEH -
Open Access Article
949 - Nitrogen Management Options in Winter Rice under Boro- Fallow-T. Aman Cropping System
AMINA KHATUN A.B.M. MOSTAFIZUR B. J. SHIRAZY A. SAHA M. S. KABIR -
Open Access Article
950 - Essential Oil Production, Yield and Water Use Efficiency of Fennel (Foeniculum vulgare Mill.) as Affected by Sowing Date and Plant Density
Seyyed Gholamreza MOHAMAD JAVAD SEGHATOLESLAMI -
Open Access Article
951 - Study of the Sesamia cretica Population Control Using Fibronil Insecticide in Sugarcane Fields of Khuzestan Province
AMIR KHADEMPOUR AMIR SORAGHI FAKHER KARDONI SHABNAM ASHOURI -
Open Access Article
952 - The study assessed effect of irrigation and nutrition management on yield and water productivity of forge and grain maize hybrids (S.c.704) in the north of the country
R. Rezaei Sokht Abandani M. Rezaei N. Rezaei M. EbrahimiExperimental crop year from 2010-2011 as a split plot in a randomized complete block design with three replications at the Agricultural Research Station, salesperson biokola (Neka) was performed. The main factor for irrigation interval is in four levels of I1, I2, I3 an MoreExperimental crop year from 2010-2011 as a split plot in a randomized complete block design with three replications at the Agricultural Research Station, salesperson biokola (Neka) was performed. The main factor for irrigation interval is in four levels of I1, I2, I3 and I4 (75, 100, 125 and 150mm grouped evaporation from pan evaporation respectively) and nitrogen sub factors are which equal to zero, 200 and 400 urea kg in hectar. Results show that more wet forage performance reached in hectar with 125mm evaporation from pan evaporation in irrigation interval 71230 in hectar, but the most wet forage performance in hectar in gain with 75 and 125mm evaporation from pan evaporation respectively which is equal 19030 and 17810 kg in hectar. Maximum profitability of dry material water usage reached with 125mm irrigation interval in evaporation from evaporation pan is equal to 15.37 kg on mg. Most performance of wet forage reached in wet forage performance according to irrigation + raining under the care of interaction effects in irrigation interval × nitrogen fertilizer for cares with 125mm irrigation interval and 150mm evaporation from evaporation pan with and 184 kg nitrogen usage in hectar which is equal 79200, 13000 kg in hectar and 67.34 and 12.44 percent. Manuscript profile -
Open Access Article
953 - Effects of irrigation interval and nitrogen degree on dry mater yield and water usage efficiency of corn in Mazandaran province
R. Rezaei Sokht Abandani A. Charati Araei D. Akbari Nodehi H. Mobasser M. Ramezani In order to study irrigation interval effects and various using Nitrogen on yield of corn (K.Sc 704) was accomplished during 2008-2009. The experiment was carried on as split plot based on RCBD with 3 replications in Bayekola research farm of ag More In order to study irrigation interval effects and various using Nitrogen on yield of corn (K.Sc 704) was accomplished during 2008-2009. The experiment was carried on as split plot based on RCBD with 3 replications in Bayekola research farm of agricultural research campus in Neka in Mazandaran province. Traits were selected as irrigation interval are in four levels (I1, I2, I3 and I4 respectively as 75, 100, 125 and 150 mm accumulation evaporation of evaporation pan A class) as maim plot and three levels of Nitrogen (0, 92 and 184 kg Nitrogen that respectively substitute zero ,200 and 400 kg urea in hectare) as sub plots. Results showed that minimum of dry mater weight and yield was related to 150 mm evaporation of evaporation pan A class. The maximum forage yield and water usage efficiency obtained in I3. Bush height, dry weight in square meter, corn length, wet forage weight in hectare, efficiency of water usage, efficiency of dry material water usage, percent of water than dry weight and efficiency of water usage was largest 184 kgN/ha and lowest degree was gained under treatment without usage of called characteristics Nitrogen. Maximal of water percent than dry weight, efficiency of dry material water and maximal of water usage biological efficiency according to production of evaporation pan Aclass was gained with usage of 184 kgN/ha, maximal efficiency of water usage with 150 mm evaporation of evaporation pan a class was gained with usage 184 kgN/ha. Manuscript profile -
Open Access Article
954 - Effect of nitroxin, nitrogen and manure application on yield, nitrogen use efficiency and Some crop characteristics in sweet corn
M. Sharifi M. Mirzakhani N. A. Sajedi In order to effect nitroxin levels of nitrogen and manure application on nitrogen use efficiency and some quantitative traits in sweet corn varieties as Chase factorial experimental design based on randomized complete block with three repl More In order to effect nitroxin levels of nitrogen and manure application on nitrogen use efficiency and some quantitative traits in sweet corn varieties as Chase factorial experimental design based on randomized complete block with three replications in agricultural research farm in 2010, Islamic Azad University Arak was performed. Factors studied include two levels nitroxin inoculated and non inoculated with the seed, pure nitrogen at three levels 0, 50 and 100 kg ha-1 and manure at three levels 10, 20 and 30 tons ha-1 were. The results showed nitroxin on the characteristics of grain per ear, ear away from the field level, cob weight, grain yield and nitrogen use efficiency had the effect, so that the increase of grain per ear, cob weight, grain yield per hectare and nitrogen use efficiency was. Animal manure also on the characteristics of grain per ear, ear away from the field level, ear leaf area, grain hectolitre weight, grain yield per hectare and nitrogen use efficiency had the effect, so that reduces the nitrogen use efficiency and grain per ear was. Nitrogen effects on grain protein, cob weight, ear leaf area, grain yield and nitrogen use efficiency was significantly increased grain protein and grain yield per hectare was. Excess nitrogen and manure significantly reduced nitrogen use efficiency was also inoculated seed nitroxin positive effect on nitrogen use efficiency found. Manuscript profile -
Open Access Article
955 - Effect of cycocel and Zinc Foliar Application on protein content and important elements and water use efficiency on Corn under water defcit condition
ehsan Abbaspour Jafar Masoud Sinaki Zarin taj Alipour Sakine Saeedi Sar To study the effect of water stress and the application of growth regulator (cycocel ) and Zinc spray on the protein rate, the major elements and some physical characteristics in corn (hybrid Ns540) .A split-split plot experime More To study the effect of water stress and the application of growth regulator (cycocel ) and Zinc spray on the protein rate, the major elements and some physical characteristics in corn (hybrid Ns540) .A split-split plot experimental with three replications in a randomized complete block design in Semnan Agricultural Research Station in 2010 in was run. The main factor included three levels of irrigation (irrigation complete, disconnect the water at 71 BBCH and 61 BBCH) in main plots and taking cycocel three levels (without taking cycocel consumption cycocel 1500, and 3000 parts per million) in the subplots and spraying zinc sulfate in three levels (no foliar applications, foliar applications of zinc sulfate at 3 and 5kg per thousands) as the subplots - are considered minor. Analysis of variance showed that the impact of cut irrigation on protein content, major elements such as phosphorus, potash, zinc, copper and iron, and water use efficiency is significantly. With the increased tension of the grain protein content and concentration of phosphorus, potash, zinc, iron and copper were reduced and increased water use efficiency. That results showed, taking cycocel, potash and phosphor decreased and other indicators increased. Zinc spraying the exception of the iron (Fe) increase in other indicators. the Correlation between Important elements and components of protein content and water use efficiency showed that Positive and significant correlation between water use efficiency and a high copper content of 0.474 percent is established And grain protein correlated with leaf phosphorus content of 0.522 percent. The findings can be to corn-growing of Semnan and similar region drought conditions that prohibit the use of certain materials and components that manufacturers offer to achieve good economic performance and quality. Manuscript profile -
Open Access Article
956 - Effect of biofertilizer and nitrogen on nitrogen use efficiency and harvest index of two winter wheat (Triticum aestivum L.) cultivars
M. Najari Sadeghi B. Mirshekari S. Baser Koochebagh S. Allahyari In order to study effects of biofertilizer and nitrogen on nitrogen use efficiency and harvest index of wheat (Triticum aestivum L.) an experiment was conducted with nitrogen rate (0, 33, 67, 100 kg/ha urea), seed biofertilization with nitragin More In order to study effects of biofertilizer and nitrogen on nitrogen use efficiency and harvest index of wheat (Triticum aestivum L.) an experiment was conducted with nitrogen rate (0, 33, 67, 100 kg/ha urea), seed biofertilization with nitragin and wheat cultivars (Alvand and MV17). Results showed that with increasing of urea application fertile tillers number per plant improved. When biofertilized seeds were planted, grain yield increased from 6017 kg/ha in control to 6591 kg/ha in application of 33 kg/ha urea and 6954 kg/ha in 67 kg/ha urea in Alvand, and from 3547 kg/ha in control to 4428 kg/ha in application of 33 kg/ha urea and 4724 kg/ha in 67 kg/ha urea in MV17. Seed biofertilization with nitragin increased harvest index of crop up to 2.3%. In biofertilized treatments, when wheat plants were fertilized with lower dose of urea, grain yield improved in both cultivars. With increasing of urea rate from 67 to 100 kg/ha the yield reduced. In non-biofertilized plants grain yield in those plots fertilized with full dose of urea was the highest. In experiment environmental condition with wheat seed biofertilization before planting we can improve grain yield and reduce urea application up to 33% of recommended dose. Manuscript profile -
Open Access Article
957 - Investigation of irrigation management and manure use for increasing water use efficiency in corn (SC 704)
R. Hassanzadeh S. Chavoshi H. Madani A. Asgari In order to investigate of manure consumption on used efficiency in corn (SC704) an experiment was conducted in agricultural researches center of Hajiabad in Hormozgan. The experimental design was CRBD with four replications. Main plots were con More In order to investigate of manure consumption on used efficiency in corn (SC704) an experiment was conducted in agricultural researches center of Hajiabad in Hormozgan. The experimental design was CRBD with four replications. Main plots were considered as four irrigation methods (irrigation of one side of hills to full growth, one side of hills Till steming and then from Two sides, one side of hills Till flowering then from Two sides irrigation) and four amounts of manure (0, 10, 20 and 30 ton/ha) were considered as subplots. Results showded that irrigation method and using manure have significant effects on water used efficiency, yield, 1000 cernel weight, biomass, number of grain per row and stem diameter (p<0.01). Maximum grain yield was related to Two side irrigation by 10070 kg/ha when 30 ton/ha manure. Also Maximum dry matter was related to notice trait. Manuscript profile -
Open Access Article
958 - Effects of biological and chemical fertilizers (nitrogen and phosphor) on yeild and oil content of peppermint plant under the climatical conditions of Arak
Amir reza Yoonesy Seyed Yaghub Sadeghyan Motahar Nourali Sajedi Gholam reza Naderi Boroujerdi Peppermint is an important medical plant which contains essential oil that has many usages in different industry. Nitrogen and phosphor are considered to be the most limiting factors of the plants' growth after the factor More Peppermint is an important medical plant which contains essential oil that has many usages in different industry. Nitrogen and phosphor are considered to be the most limiting factors of the plants' growth after the factor of water. Chemical fertilizers which are so much used to remove the shortage of these two elements have destructive environmental effects and reduce the quality of crops. Today, using biological fertilizers are considered to be the most suitable strategy to prevent the dangers of chemical fertilizers. This experiment was carried out in the form of factorial based on the Complete Randomized Block Design with four repetitions and two treatments, one of which is Nitrogen fertilizer including three levels of Super Nitro Plus biological fertilizer containing bacteria such as Azospirillum which controls the path of the soil-organisms' genetic factors (Basillus sp) and PGPR, plant growth provocative (Pseudomonas flurescens ), Nitroxin biological fertilizer containing different doses of Azospirillum bacteria, and Urea chemical fertilizer (300 kg/ha) and also phosphor fertilizer in three levels of Barvar II biological fertilizer containing phosphor releasing bacteria accompanying with Ammonium de phosphate fertilizer (125 kg/ha), Barvar II biological fertilizer and Ammonium de phosphate chemical fertilizer (250 kg/ha) in the agronomical year 1387 in the researching farm of Islamic Azad University of Arak. The results of the mentioned experiment demonstrated that the Super Nitro Plus biological fertilizer and in the second place, Nitroxin cause the significant improvement of the fresh and dry weight of offshoot also amount and efficiency offshoot's essential oil. The combinational treatment of Barvar II and Ammonium de phosphate causes significant improvements of the essential oil efficiency of offshoot. The combinational treatment of Super Nitro Plus and Barvar II causes the significant improvement of offshoot's fresh weight. Also, decreasing the chemical phosphor fertilizer consumption up to fifty percent becomes possible through employing phosphor-releasing bacteria without any significant decline in the growth characteristics and plant essential oil efficiency. Manuscript profile -
Open Access Article
959 - Electrospun Nanofibrous Membranes as Potential Adsorbents for Textile Dye Removal-A review
M. Hasanzadeh B. Hadavi Moghadam -
Open Access Article
960 - Evaluation of Removal Efficiency of Cr (VI) Ions from Aqueous Solution Using Chitosan
Soheil Sobhanardakani Raziyeh Zandipak Mohadeseh Bonyadi Hassan Parvizimosaed Mehran Moslemi Mahsa Tahergorabi Tahergorabi Seyed Mehdi Hosseini -
Open Access Article
961 - Determination of optimum production condition and characterization of Potassium Ferrate particles synthesized by electrochemical method
Sina Samimi Sede احسان صائب نوری seyed Ali Hasanzadeh TabriziProduction efficiency and energy consumption are two important factors in electrochemical synthesis of potassium ferrate particles. In this research, the effects of different parameters including applied current density, KOH electrolyte concentration and its temperature MoreProduction efficiency and energy consumption are two important factors in electrochemical synthesis of potassium ferrate particles. In this research, the effects of different parameters including applied current density, KOH electrolyte concentration and its temperature on production efficiency and energy consumption have been studied. The condition of optimized production has achieved in current density of 40 mA.cm-2, 13M KOH electrolyte with temperature of 70 oC for two hours. In this situation, the production efficiency was 84.63% and the energy consumption was 5.05 kwh/kg. In next step, the effect of time duration on production efficiency, purity, formed phases and the size of potassium ferrate particles has been investigated in optimal condition. The results showed that due to decomposition of potassium ferrate particles with time, iron hydroxides and oxides components have been formed which reduces the purity and production efficiency. The sizes of potassium ferrate particles were measured by two method of Debye-Scherrer and modified Debye-Scherrer. This revealed that the size of potassium ferrate particles increases as time passes. Manuscript profile -
Open Access Article
962 - Phase, microstructure characterization and hardening efficiency of SKS3 tool steel laser surface hardened by a high-power diode laser
Amirsalar Dehghani Amirreza Farnia Mohammad Javad TorkamanyIn this research, the surface hardening of SKS3 cold work tool steel has been performed by high power diode laser with a maximum power 1600 W. The applied powers of 1200 and 1450 W, the scanning speeds of 1.6 to 3 mm.s-1 and working distances of 55,, 70 and 75 mm were a MoreIn this research, the surface hardening of SKS3 cold work tool steel has been performed by high power diode laser with a maximum power 1600 W. The applied powers of 1200 and 1450 W, the scanning speeds of 1.6 to 3 mm.s-1 and working distances of 55,, 70 and 75 mm were applied as test parameters. Microstructure and phase analysis and microhardness measurement were studied by optical microscopy, electron microscopy, X-ray diffraction and microhardness testing methods, respectively. The microstructure and phase analysis showed that the hardening process led to the formation of martensite and retained austenite dual-phase structure. The use of laser, created all three states of surface hardening, surface melting and non-hardening. The best result in terms of depth and width of hardening was obtained for samples with energy density of 208-250 J/mm2. The calculation of retained austenite phase percentage and heat input, indicated that an increase in the heat input raised the residual austenite percentage, so that for the sample with maximum heat input, the retained austenite phase percentage was calculated to be approximately 37%. Also, for the sample with the highest heat input (906/J/mm2), the lowest hardness was obtained (653 Vickers) and the sample with lower heat input (725 J/mm2) was owned the highest hardness (760 Vickers). Investigations of the values of hardening efficiency showed that the hardening conditions are not improved only by increasing the laser energy density, but to obtain highest hardness and appropriate microstructure, the optimum amount of power and scanning speed is needed. Manuscript profile -
Open Access Article
963 - Effect of Different Levels Factors of pH on the Percentage of Hatching (HP) and Hatching Efficiency (HE) Cysts Artemia urmiana
جواد مسگران کریمی پرویز زارع روح الله عباسپورThe Fisheries Research Laboratory, University of Zabol to investigate the Effect of different levels factors of pH on the percentage of hatching (HP) and hatching efficiency (HE) cysts Artemia urmiana at five different pH (7, 7.5, 8, 8.3 and 9) were performed. Each tre MoreThe Fisheries Research Laboratory, University of Zabol to investigate the Effect of different levels factors of pH on the percentage of hatching (HP) and hatching efficiency (HE) cysts Artemia urmiana at five different pH (7, 7.5, 8, 8.3 and 9) were performed. Each treatment was replicated three times. During the experiment, all factors affecting hatching was fixed and the variable pH levels. After 24 hours of incubation system began, the number of nauplii and umbrella cysts forms and cysts were counted and the percentage of hatching capacity was calculated. Based on the results, the percentage of hatching ability of pH=8.3 was higher than other treatments and at hatching was observed at pH=9. Differences between treatments were very small and statistically not significant (P> 0.05). Generally, the pH is an important factor in the hatched Artemia urmiana cysts and for optimization of the pH must be kept constant at 8.3. Manuscript profile -
Open Access Article
964 - An experimental model for predicting normal solar performance chimneys concerning the percentage of openings
Sajede Nazari Malihe Taghipour Aliakbar Heidari -
Open Access Article
965 - Thermodynamic analysis of two-shaft radial gas turbine data using artificial neural network method
Hamidreza Mektaazadeh بابک مهماندوست Mojtaba Haratian -
Open Access Article
966 - The Strategic Role of Risk Management on the Interaction between Efficiency, Performance and Financial Health of Banks
mirmorteza mousavi asgar pakmaram jamal bahri sales hasan galebafaclAll organizations face risk in achieving their predetermined goals, but if they understand and enjoy strategic risk management, that risk can become a competitive advantage. Banks, as the most important institutions active in the monetary and financial markets, play an MoreAll organizations face risk in achieving their predetermined goals, but if they understand and enjoy strategic risk management, that risk can become a competitive advantage. Banks, as the most important institutions active in the monetary and financial markets, play an important role in the growth and development of countries. Due to this essential role and prevention of wastage of financial resources, reviewing the efficiency of banks has a special place. Due to this importance, national and international regulators are trying to prevent banks from increasing their risk of bankruptcy by imposing limited liabilities. On the other hand, imposing this restriction may weaken banks 'performance by reducing banks' investment and lending powers. Therefore, the main purpose of the present study, following the research of Lu et al (2018) and the third statement of the Wing Committee (2014), is to investigate the impact of risk management dimensions (determining risk appetite and risk appetite, formulating and implementing risk strategy, internal evaluation, planning and crisis testing and Reporting and Transparency). The interaction between efficiency, performance and financial health of the Iranian banking industry has been discussed. The statistical population of this research is the managers of branches of Iranian banking industry and standard questionnaire was used for data gathering. The results showed that reporting and transparency had a significant effect on the interaction between efficiency, performance and financial health of banks. There was also a significant effect of internal evaluation, planning and crisis testing on the interaction between performance and financial health of banks. Manuscript profile -
Open Access Article
967 - The Strategic Role of Risk Management on the Interaction between Efficiency, Performance and Financial Health of Banks
mirmorteza mousavi asgar pakmaram jamal bahri sales hasan galebafaclAll organizations face risk in achieving their predetermined goals, but if they understand and enjoy strategic risk management, that risk can become a competitive advantage.Banks, as the most important endpoints of our financial crisis, have also become increasingly s h MoreAll organizations face risk in achieving their predetermined goals, but if they understand and enjoy strategic risk management, that risk can become a competitive advantage.Banks, as the most important endpoints of our financial crisis, have also become increasingly s have special interest rates. Finally, the international myths of the past seemaggressive. Due to our tightened resources, some bank to have some limitations in order to avoid the increased risk of the banks, the financial intermediaries, with the banks, the banks and the investment banks. Therefore, the main purpose of the present study, following the research of Lu et al. (2018) and the third statement of the Wing Committee (2014), is to investigate the impact of risk management dimensions (determining risk appetite and risk appetite, formulating and implementing risk strategy, internal evaluation, planning and crisis testing). , Reporting and Transparency) The interaction between efficiency, performance and financial health of the Iranian banking industry has been discussed. The statistical population of this research is the managers of branches and branches of Iranian banking industry and standard questionnaire was used for data gathering. The results showed that reporting and transparency had a significant effect on the interaction between efficiency, performance and financial health of banks. There was also a significant effect of internal evaluation, planning and crisis testing on the interaction between performance and financial health of banks. Manuscript profile -
Open Access Article
968 - Measuring the Efficiency and Productivity of Commercial Banks in Iran by using a Hybrid Model of Fuzzy TOPSIS, DEA and MPI
ali fazelyazdi mahmod moienaldinGiven the very essential role of banks in Iran, their improper operations might generate a critical environment. The present study seeks to examine the efficiency and productivity of Iran commercial banks for a period from 2007 to 2011 by using Fuzzy TOPSIS, DEA and Mal MoreGiven the very essential role of banks in Iran, their improper operations might generate a critical environment. The present study seeks to examine the efficiency and productivity of Iran commercial banks for a period from 2007 to 2011 by using Fuzzy TOPSIS, DEA and Malmquist index. For implementing this model, the significance of the inputs (total assets, equity, total costs and total debts) and outputs (total revenue, E-banking, granted loans and receiveables and currency trades) are calculated by using Fuzzy TOPSIS method to be used in DEA and Malmquist index. The findings reveal that the total assets (among inputs) and granted loans and receivables (among outputs) have the highest significance. The results of banks’ efficiency document that Mehr-e-Iranian, Sina, Sarmayeh, Pasargad, Karafarin, Maskan, Toseh-e-Saderat and Eghtesad-e-Novin have the best operation. The findings related to productivity also indicate that the average productivity rate of the banks are negative over the years from 2007 to 2011; except for Melli, Mellat, Sanat Madan, Saderat, Sepah, Tejarat, Keshavarzi, Parsian, Karafarin and Post Bank (the average productivity rate of these banks are more than one). Manuscript profile -
Open Access Article
969 - Strategic Financial Management Using Identifying Necessary Factors for Implementing Performance Based Budgeting System in Islamic Azad University
maryam takhtaishahi Rahmatollah Mohammadipour mahmoud hematfarBudget is the most important planning tool for managing each organization, and budgeting as a statement of the situation and forecasting revenues and expenses for a period will help the manager to control the financial health of the area. Accordingly, the purpose of thi MoreBudget is the most important planning tool for managing each organization, and budgeting as a statement of the situation and forecasting revenues and expenses for a period will help the manager to control the financial health of the area. Accordingly, the purpose of this research is to investigate the effect of managerial, structural and environmental factors on the establishment of a functional budgeting system in Islamic Azad University in the direction of financial strategic management and to determine the impact of each of these factors. For this purpose, library and field methods have been used to collect information. A field questionnaire was used to assess the validity and reliability of that control, and Cronbach's alpha was 82%. The statistical population consists of 100 staff members and professors in the field of budgeting, officials and administrative, financial and planning deputies of Islamic Azad University. Research hypotheses and data were analyzed using descriptive and inferential statistics, Smirnoff-Kolmogorov, T one sample run test, Chi-square and Friedman tests by SPSS software. The results show that the implementation of the functional budgeting system in Azad University is possible in terms of management, structural and environmental factors, respectively, and in accordance with the conditions of the University as a unique collection of scientific and educational Manuscript profile -
Open Access Article
970 - Application of Artificial Neural Network to Estimate the Strategic Value Creation Via Relative Efficiency in the Automotive Industry
Akbar Valizadeh Oghani Nasser Fegh-hi Farahmand Farzin Modarres Khiabani Majid Bagherzadeh The purpose of this study is to investigate the effect of relative efficiency of companies on value creation in the automotive industry accepted in Tehran Stock Exchange. The data were extracted from the financial statements of selected companies during in the 2 More The purpose of this study is to investigate the effect of relative efficiency of companies on value creation in the automotive industry accepted in Tehran Stock Exchange. The data were extracted from the financial statements of selected companies during in the 2013-2017. Initially, with the implementation of the DEA model with a native model, the relative efficiency is determined for each company. Then the strategic value creation of the companies is measured by the average of the factors such as return on equity, Q Tobin ratio, return on investment, and wealth creation for shareholders. The neural network model used in this study is a multilayer perceptron with back propagation error training pattern. The results show that the implementation of the artificial neural network model in the automotive industry explains the strategic value of the companies to a satisfactory level through the relative efficiency index and other input variables. Although some of the companies are efficient, such as Rana Investments Co., Khawar Spring Co., Saipa Diesel, Bahman Group and Charkheshgar Co., But in recent years, the automotive industry has been inefficient. At the same time, companies in this industry have somehow been able to strategically create value for their shareholders and their owners. Manuscript profile -
Open Access Article
971 - An Evaluation Of Ecological Solutions Based On Energy Efficiency In The Vernacular Architecture Of Ardabil
mahsa javadi nodeh azadeh shahcheraghi alireza andalib -
Open Access Article
972 - Effect of nitrogen fertilizer levels and plant density on seeds quantity and quality of wheat
Javad Hamzei mohsen Seyedi afshar Azadbakht Ayob FesahatIn order to evaluate the effect of nitrogen fertilizer and plant density on wheat yield and yield component an experiment was done as factorial bases on randomized complete block design with three replications at the Agricultural Research Station, Faculty of Agriculture MoreIn order to evaluate the effect of nitrogen fertilizer and plant density on wheat yield and yield component an experiment was done as factorial bases on randomized complete block design with three replications at the Agricultural Research Station, Faculty of Agriculture, University of Bu-Ali Sina, during 2011-12 growing season. Experimental factors were: fertilizer levels (0, 40, 80, 120 and 160 kg N ha-1) and plant density (150, 300 and 450 plant m2). According to the data analysis, effect of nitrogen and plant density on all traits except harvest index were significant. Means comparison showed by increasing at N fertilizer; plant height, grain number per spike, 1000-seeds weight, biological yield, chlorophyll index and protein percentage were increased. But, by increasing at plant density; grain number per spike, 1000-seeds weight, chlorophyll index and protein percentage were decreased. The traits such as spike number per m2, grain yield and protein yield were affected by fertilizer × density interaction, significantly. The highest grain yield and protein yield (500 and 68.50 g m-2, respectively) were achieved at 160 kg N fertilizer × 300 plant per m2 treatment. So, pay attention to the results of present research, it seems that density of 300 plants with consumption of 120 kg N ha-1 is suitable for producing maximum grain and protein yields of wheat. Manuscript profile -
Open Access Article
973 - Potato Irrigation Planning based on Moisture depletion using AquaCrop
Mohammad Ali Ansari Aslan Egdernezhad Niazali EbrahimipakIn order to potato irrigation planning based on moisture depletion, calibrated AquaCrop was used. This model was calibrated using data collected from a research station in Chahartakhteh, Shahrekord, in two years. Then, Aquacrop was implemented under multi run in differe MoreIn order to potato irrigation planning based on moisture depletion, calibrated AquaCrop was used. This model was calibrated using data collected from a research station in Chahartakhteh, Shahrekord, in two years. Then, Aquacrop was implemented under multi run in different depletion and irrigation scenarios (DyIx; which y indicates depletion amount and x indicates irrigation amount in mm). Results revealed that there was no water stress under 40 mm depletion and 40 mm irrigation. Crop yield and biomass was so low when depletion was more than 80 mm. In order to apply deficit irrigation, depletion must be between 40 to 70 mm. Based on the results, maximum yield was observed for D40I40 (22.6 ton.ha-1) and minimum yield was observed for D70I20 (10.8 ton.ha-1). In the case of water deficit, D60I40, D60I30, and D65I30 were the best scenarios so that the yields for mentioned scenarios were 16.8, 22.2, and 27 percent less than D40I40 yield. Biomass values for mentioned scenarios were 16.6, 21.8, and 26.7 percent less than D40I40 biomass. Water use efficiency for this scenarios were 0.7 (more), 0.7 (less), and 1.9 (less) than D40I40 one. So, D40I40 and D60I40 were the best scenario in full and deficit irrigation, respectively. Manuscript profile -
Open Access Article
974 - Evaluation of AquaCrop for Simulation of Wheat Grain Yield and Water Use Efficiency under Different Irrigation Condition in Farm
Maryam Abedi Aslan Egdernezhad Niazali EbrahimipakWheat is one of the most important crops in the world. So, use of crop models helps to have an acceptable estimation of its grain yield in different conditions. Regarding that, in order to evaluate AquaCrop, as one of the most useful crop model, under different irrigati MoreWheat is one of the most important crops in the world. So, use of crop models helps to have an acceptable estimation of its grain yield in different conditions. Regarding that, in order to evaluate AquaCrop, as one of the most useful crop model, under different irrigation water condition in farm, this research was conducted in Kosar irrigation network located at Khuzistan province. Regarding that, long term data in three farms were collected. Then, 70 percent of data were used for calibration. AquaCrop validation results showed that this model had low error and good efficiency. AquaCrop were evaluated using the remaining 30 percent of data. Results showed that the difference between observed and simulated results for wheat grain yield and water use efficiency were 0.45 ton.ha-1 and 0.05 kg.m-3, respectively. In addition, MBE, RMSE and NRMSE results for wheat grain yield were 0.14 ton.ha-1, 0.52 ton.ha-1 and 0.13, respectively. Those results for water use efficiency were 0.01 kg.m-3, 0.06 kg.m-3 and 0.10, respectively. EF and d values for wheat grain yield 0.3 and 0.99, respectively, and those values for water use efficiency were 0.1 and 0.99, respectively. So, AquaCrop accuracy was acceptable for simulation of both parameters and it is recommended to use this model for simulation of mentioned parameters. Manuscript profile -
Open Access Article
975 - Designing a Model for Evaluating the Effectiveness of Cultural Activities
mohamad bigdeli ali rashidpourThe realization of cultural goals and ideals of societies and cultural organizations depends on the amount and type of activities underway, the degree of impact and also their possible consequences at different individual and social stratums and among different segments MoreThe realization of cultural goals and ideals of societies and cultural organizations depends on the amount and type of activities underway, the degree of impact and also their possible consequences at different individual and social stratums and among different segments of society. In this regard, measuring and evaluating effectiveness of the activities are the best way to ensure optimal achievement of the designed goals. So, this study discussed designing a model for evaluation efficiency of cultural activities in Iran. This research was an applied study of the purpose and methodologically as mixed methods. The statistical sample in the qualitative section included all university experts and experts in the field of cultural & educational management, which was equal to 20 people. The research instrument consisted of researcher-made coding sheets whose validity was confirmed by Delphi group members and its reliability was calculated by P-Scott criterion of %95. Findings showed that the factors related to the development model of enhancement of health culture at education of Iran were identified in the form of 28categories and 610 concept codes. And pivotal: religiously (2categories), cultural factors (5 categories), psychological factors (3 categories), economic factors (2 categories) educational factors (3 categories), political factors (3 categories), organization & management (5 categories) and noble contingencies (2 categories). In the second study, the statistical population was 2500 faculty members and graduates of cultural management in Islamic Azad University. According to Cochran's formula, 384 people were selected as a statistical sample and were studied by available methods. Data collection tool was a questionnaire based on the results of the qualitative section and after analyzing the collected data by LISREL software it was found that the designed structural equation model has a good fit. Manuscript profile -
Open Access Article
976 - Evaluation of energy consumption and econometric analysis in greenhouse cucumber production (Case study: Jiroft province)
Fakher Kardoni Neda Saeedi Graghany Amin FathiThe objectives of this study were to determine the energy indicators and econometric analysis in greenhouse cucumber production in Jiroft province Iran.For this purpose, the data on 31 cucumber production greenhouses in the Jiroft province, Iran, were collected and anal MoreThe objectives of this study were to determine the energy indicators and econometric analysis in greenhouse cucumber production in Jiroft province Iran.For this purpose, the data on 31 cucumber production greenhouses in the Jiroft province, Iran, were collected and analyzed.The results indicated that a total energy input of 146.95GJ ha-1was consumed for cucumber production. Diesel fuel (with 46.8%), chemical fertilizers (with 20.52%) and electricity(18.7) were amongst the highest energy inputs for cucumber production. The ratio of energy output to energy input was approximately0.58.The energy productivity and net energy was estimated as 0.72 kg MJ-1 and -62.2 GJ ha-1. Also, Results indicate 6% and 93.9% of total energy input was in renewable and non-renewable forms, respectively. The regression results revealed thatthe contribution of energy inputs on crop yield(except for Diesel fuel and chemical fertilizers energies) was significant. The human labour energy had the highestimpact (1.25) among the other inputs in greenhouse cucumber production.According to the results, resource management in greenhouses and reduce the consumption of fuel and fertilizer to produce, can increase energy efficiency and productivity were cucumbers. Manuscript profile -
Open Access Article
977 - Analysis and Prioritize the Evaluation Attributes in Iranian Taekwondo National Team Coaches in view of National Athletes (Male)
mehdi baghri hadi tiran najaf aghaeiThe present study aims at prioritizing performance evaluation attributes in Iranian Taekwondo National Team coaches in the view of national athletes. The statistical sample was the same as the statistical population due to the low number of participants (n=61). A resear MoreThe present study aims at prioritizing performance evaluation attributes in Iranian Taekwondo National Team coaches in the view of national athletes. The statistical sample was the same as the statistical population due to the low number of participants (n=61). A researcher-made questionnaire including seven sections was used as the instrument. Face validity and content validity were approved by eleven experts including university professors, National Taekwondo Team coaches, international referees, and Taekwondo experts and academics. Cronbach’s Alpha (α=93/0) and composite reliability (83/0) were used to evaluate instrument’s reliability. SPSS software and Friedman test were used for data analysis and coaching criteria ranking, respectively. Based on the findings, the criteria can be listed based on the order of significance as technique skills, managerial skills, technical skills, professional relationships, psychological skills, socio-communicational skills, and championship experience. With respect to these results, athletic managers in Taekwondo Federation should focus on technique and managerial skills before the other criteria for more development of Taekwondo. Manuscript profile -
Open Access Article
978 - Effect of nitrogen amount and splitting on agronomic and physiological traits of rice (Oryza sativa L.) var. Tarom Hashemi
S.M Jafari داوود Barai یوسف Niknejad هرمز Fallah ابراهیم AmiriThe experiment was conducted to investigate the response of rice crop plant to nitrogen management in in different geographical regions in northern Iran as factorial based on a Randomized Complete Block Design (RCBD) with three replications in Mazandaran province (Band MoreThe experiment was conducted to investigate the response of rice crop plant to nitrogen management in in different geographical regions in northern Iran as factorial based on a Randomized Complete Block Design (RCBD) with three replications in Mazandaran province (Band pay Babol and Babol Plain) and Guilan province (Lahijan region) during 2019 and 2020. Three levels of nitrogen fertilizer including 50, 90 and 130 kg N ha-1 from urea sources were used as main plots and three levels of nitrogen splitting in basal applied, initial heading stage and full heading stage were used as sub plots. The findings revealed that grain yield in Lahijan region (6044 kg ha-1) was 6.57% and 5.53% lower than Band pay region and Babul Plain. With increase of 90 and 130 kg N ha-1 compared to 50 kg N ha-1, panicle length, number of panicle per hill, number of spikelet per panicle, filled spikelet percentage, grain nitrogen uptake, protein yield and nitrogen harvest index (0.77% and 2.44%, respectively) were significantly enhanced which resulted in enhance of grain yield (24.87% and 12.71%, respectively). GY with application of 50, 90 and 130 kg N ha-1 was 5602, 6314 and 6995 kg ha-1, respectively. In contrast, nitrogen utilization efficiency (108.21% and 30.37%, respectively) and nitrogen uptake efficiency (26.02% and 16.53%, respectively) were significantly decreased. Therefore, nitrogen management in the paddy field could be an effective approach to enhance performance of rice and nitrogen utilization efficiency is a major objective of future. Manuscript profile -
Open Access Article
979 - Development of network data envelopment analysis model to evaluate the technical efficiency of the pharmaceutical industry
Seyede Elham Eftekharian Seyed Farzad Hashemi Ali Nemati Razieh Mehrjoo Mahnaz Ahadzadeh NaminThe purpose of this article is to evaluate the technical efficiency of listed companies in the pharmaceutical industry in 2021. To achive this, the additive model of two-stage network data envelopment analysis was investigated with semi-positive and negative indicators MoreThe purpose of this article is to evaluate the technical efficiency of listed companies in the pharmaceutical industry in 2021. To achive this, the additive model of two-stage network data envelopment analysis was investigated with semi-positive and negative indicators and simultaneously considering the production process(Fundamental Analysis) in the first stage and the financial production process (Technical Analysis) in the second stage. In addition, FAHP applied to determine the weights of the first and second stages. The results showed: the production process is more important in defining the total efficiency of a company in the Stock Exchange. In the first stage, %33 and in the second stage, %25 of the pharmaceutical industry companies achieved full efficiency of one. According to the efficiency one of %13 companies of the studied industry in both first and second stages, the efficiency of the mentioned companies was also full and found to be one; These companies include Toliddaru, Exir Pharmaceutical and Loghman Pharmaceutical & Hygienic Companies. The lowest total efficiency belongs to Sobhan Pharmaceutical Group. In general, 88% companies of the studied industry have an efficiency higher than 0.5. Manuscript profile -
Open Access Article
980 - The Effects of Tillage Methods on Infiltration and Water Application Efficiency
ابوالفضل ناصری منصوره مظفّريInfiltration and water application efficiency are important parameters in the design and evaluation of irrigation systems, which are affected by agronomic management such as tillage practices. Present study was conducted with the main objective of investigation of tilla MoreInfiltration and water application efficiency are important parameters in the design and evaluation of irrigation systems, which are affected by agronomic management such as tillage practices. Present study was conducted with the main objective of investigation of tillage methods effects on cumulative infiltration and water application efficiency in a wheat farm at the E. Azarbaijan Research Center for Agricultural and Natural Resources ( Khosroshahr ). The experiment treatments were no-tillage, tillage by chisel plow and disc, low tillage and tillage with moldboard plow with disc. Soil infiltration was measured by the ring and water application efficiency determined for studying conditions. Results showed that tillage methods produced different cumulative infiltrations. The cumulative infiltration from low tillage, no-tillage and tillage with moldboard plow were 62, 20 and 10% of cumulative infiltration from chisel plow. Water application efficiencies from chisel plow tillage were less than 55% and efficiencies from no-tillage by moldboard plow were 55% and 68% respectively. Manuscript profile -
Open Access Article
981 - The effectiveness of online, semi-online and offline virtual education models against face-to-face education from the perspective of professors and students: a case study
Taghi Javdani GandomaniIntroduction: In recent years, online education has gained significant attention from schools and universities, particularly during the COVID-19 pandemic. Although online education has been implemented in various forms, such as online, semi-online, or offline models, it MoreIntroduction: In recent years, online education has gained significant attention from schools and universities, particularly during the COVID-19 pandemic. Although online education has been implemented in various forms, such as online, semi-online, or offline models, its effectiveness compared to in-person education remains a key question. Method: The present study aimed to compare the efficiency of three different online education models with the in-person model. The study employed three different online models and compared them with the in-person model in a public university. Results: The results showed that while professors believed that the in-person model was more efficient than the online models, students had different opinions on this issue. The study also revealed that students and professors from different faculties had varying views on the effectiveness of the employed models. Therefore, it is difficult to make a general judgment about the efficiency of educational models. However, in general, the study suggests that the efficiency of online models is lower than that of the in-person model. Discussion: It is important to note that online education offers several benefits, such as flexibility and accessibility. Therefore, it is crucial to continue exploring ways to improve the effectiveness of online education models to ensure that they can provide quality education to students. Manuscript profile -
Open Access Article
982 - The effect of mycorrhizal fungi, water stress and year on flower yield and some characteristics of medicinal plant of Borage (Borago officinalis L.) in Yasouj region
Ali RahimiIdentifying the critical time and timing of plant irrigation based on a precise and basic plan is the key to water conservation, improvement of irrigation operations and plant tolerance to water shortage in agriculture. In recent years, vesicular arbuscular mycorrhizal MoreIdentifying the critical time and timing of plant irrigation based on a precise and basic plan is the key to water conservation, improvement of irrigation operations and plant tolerance to water shortage in agriculture. In recent years, vesicular arbuscular mycorrhizal fungi have been used in many plants to deal with dehydration and drought stress. In this regard, an experiment was conducted as split-plot in the form of randomized complete block design with 3 replications in the Yasuj region at years 2015 and 2016. Water stress was considered as the main factor in the form of irrigation after 30, 60, 90, 120 and 150 mm of evaporation from the evaporation pan class A and mycorrhizal fungus was considered as a secondary factor in the form of no application, application of Glomus mosseae and application of Glomus intraradices. The results showed that the interaction of irrigation and mycorrhizal fungi on flower phosphorus, flower yield, biological yield and water use efficiency of Borage was significant. In irrigation levels after 60, 90, 120 and 150 mm of water evaporation from the evaporation pan, the use of mycorrhizal fungi Glomus mosseae and Glomus intraradices compared to the absence of fungi respectively increased the yield of plant flowers (30.04% and 27.35 %), (90.2% and 90.98%), (93.21% and 94.1%) and (81.73% and 78.86%), also, at these levels of irrigation, biological yield and water use efficiency of Borage flower achieved a significant increase in the presence of mycorrhizal fungus, compared to the absence of mycorrhizal fungus application. Application of both strains of mycorrhizal fungus Glomus mosseae and Glomus intraradices in irrigation levels after 90, 120 and 150 mm of water evaporation from the evaporation pan compared to no application of mycorrhizal fungus, respectively, resulted in a significant increase in the harvest index of Borage flower (44.55% and 43.36%), (13.21% and 15.96%) and (5.6% and 5.41%) and flower phosphorus (44.69% and 20.45%), (150% and 125%) and ( 267.74% and 235.48%). Mycorrhizal fungus was able to moderate the negative effects of drought stress and increase the above-mentioned traits in those irrigation levels, and based on the results of this study, irrigation treatment after 90 mm of water evaporation from the evaporation pan + the use of Glomus mosseae mycorrhizal fungi is recommended. Manuscript profile -
Open Access Article
983 - The study of nitrogen use efficiency and its related traits in winter cereals
Ali Rahemi Karizaki Abbas Biabani Shahryar Kazemi Hosein Sabouri Maral EtesamiNitrogen is the most important factor limiting the growth and performance of crops, especially cereals. Therefore, with the aim of investigating the nitrogen use efficiency and its components in different cereals under the conditions of control (no use nitrogen) and opt MoreNitrogen is the most important factor limiting the growth and performance of crops, especially cereals. Therefore, with the aim of investigating the nitrogen use efficiency and its components in different cereals under the conditions of control (no use nitrogen) and optimal conditions of nitrogen, a factorial field experiment was conducted base on randomized complete block design with three replications at Gonbad Kavus University in 2017-2018. The experimental treatments included cereals at 7 levels, including bread wheat Koohdasht cultivar, durum wheat Seimareh cultivar, two rowed barley Khoram cultivar, six rowed barley Sahra cultivar, hull less barley Line 17, triticale Javanilo cultivar and oat Canadian cultivar) and the nitrogen factor were evaluated at two control (zero) and optimum levels. The result showed that cereal × nitrogen interaction was not significant on nitrogen utilization efficiency, nitrogen uptake efficiency and nitrogen use efficiency, nitrogen harvest index, nitrogen content and grain protein. But the main effect of nitrogen and cereals on nitrogen uptake efficiency, nitrogen utilization efficiency and grain protein percentage was significant at 1% level. While the nitrogen harvest index was only affected by cereals, Also, nitrogen remobilization was affected by cereals, nitrogen and cereals × nitrogen interaction. Finally, the results of this experiment showed that nitrogen use efficiency increased in all studied cereals under optimal nitrogen conditions. Nitrogen use efficiency consists of two components, nitrogen uptake efficiency and nitrogen utilization efficiency, as a result, the increase in nitrogen use efficiency is mostly due to the improvement in nitrogen uptake efficiency. Also, in all cereals under optimal nitrogen conditions, protein percentage and grain yield increased, in order to the increase in protein percentage was due to increased nitrogen remobilization. On the other hand, hull less barley had a higher nitrogen use efficiency than other cereals. Manuscript profile -
Open Access Article
984 - The effect of drought stress on the efficiency of rhizobial bacteria (Rhizobium leguminosarum) symbiotic with faba bean (Phaseoulus vulgaris) Barkat variety
Mohammad hossein ArzaneshIn order to investigate the effect of drought stress on some growth parameters and nodulation index, the symbiotic efficiency of rhizobial isolates an experiment in controlled greenhouse conditions in the form of a completely randomized design with 21 rhizobial isolates MoreIn order to investigate the effect of drought stress on some growth parameters and nodulation index, the symbiotic efficiency of rhizobial isolates an experiment in controlled greenhouse conditions in the form of a completely randomized design with 21 rhizobial isolates, a negative control treatment (without rhizobial bacteria) and a control treatment Positive (no bacteria with nitrogen fertilizer at the rate of 70 mg/kg from urea source) and 3 repetitions were done in 2013. Different levels of drought stress including drought in two levels S0 (100% of field capacity (control or no drought stress)), S3 (55% of field capacity (severe stress)), which by adding different concentrations of zero and 310 grams per liter of polyethylene glycol 6000 (PEG) was applied to the nutrient solution after one week of seedling germination. The results of statistical analyzes showed that drought stress had a significant reduction effect on shoot dry weight, shoot water content, nitrogen content, symbiotic efficiency of rhizobial isolates and nodulation index. Manuscript profile -
Open Access Article
985 - Long Term Feeding Effects of a Vaccine against of Endotoxemia (ENDOVAC-Beef) on Growth Performance and Carcass Characteristics of Growing-Finishing Calf-Fed Holstein Steers
B.C. Latack P.H. Carvalho A. Plascencia R.A. ZinnThe objective was to evaluate the long-term effects of vaccination against endotoxemia on calf-fed Holstein steer growth performance, dietary energetics, and carcass characteristics. Fifty Holstein steer calves were used in a 322 d trial. Calves (134±5 kg) were randomly MoreThe objective was to evaluate the long-term effects of vaccination against endotoxemia on calf-fed Holstein steer growth performance, dietary energetics, and carcass characteristics. Fifty Holstein steer calves were used in a 322 d trial. Calves (134±5 kg) were randomly assigned to treatments within weight groups to 10 pens (5 steers per pen). Five pen groups received an endotoxemia vaccination on d 28 and 56 of the study (EV), and the remaining 5 pens did not receive vaccination. Calves were weighed (off-truck weight, no shrink applied) at start of the study, and on days 122 and 322 (shrunk 4% to account for gut fill). All steers were fed with a steam-flaked corn-based diet. Vaccination did not affect (P≥0.10) live weight, average daily gain, and dry matter intake during the experiment. Although vaccination increased (P=0.04) gain efficiency during the initial 112 d, differences in gain efficiency from d 112 to 322, and during the cumulative feeding period (1 to 322 d) was not appreciable (P≥0.14). Vaccination did not affect (P≥0.31) hot carcass weight, dressing percentage, or marbling score. However, vaccination increased (P<0.01) longissimus muscle area (86.5 vs. 76.8 cm2) and retail yield (51.3 vs. 50.4); but, also tended to increase (P=0.07) carcass fat thick-ness. Morbidity and pink eye rate infection were low and not affected by treatment (P≥0.18). We conclude that whereas vaccinating Holstein calves with EV at days 28 and 56 from arrival did not have an overall effect on growth-performance, it increased (13%) longissimus area and retail carcass yield (1.8%). Manuscript profile -
Open Access Article
986 - Determination of Surface Irrigation Efficiencies for Pumpkin plant in Khoy Plain Lands
فاطمه پناهدوست Faribourz AhmadzadehAccording to the statistics, surface irrigation system covers more than 95% of the country's lands and current efficiency of the system is estimated as less than 35%. Hence, the need for detailed understanding of surface irrigation efficiencies in the irrigated lands an MoreAccording to the statistics, surface irrigation system covers more than 95% of the country's lands and current efficiency of the system is estimated as less than 35%. Hence, the need for detailed understanding of surface irrigation efficiencies in the irrigated lands and presenting appropriate solutions to increase such factors are too important to measure and should be taken in line with optimal consumption of agricultural water which covers more than 70% of the country's available water. Hence, a farm was selected in Malajnood village area which was irrigated in furrow method and then was evaluated during the two phases of irrigation. The underlying tests were conducted using partial Parshall with input water flow of 3.66, 1.97L?S. Elliot7Wlker's two-point method was used to determine infiltration equation coefficients. The relationship between needed water and exact moisture distribution which was equal to 2 samples of irrigation indicated two cases of incomplete irrigation. Findings of the study indicated that deep percolation ratio was 23.33 and 45.63 and the irrigation adequacy was 100% that showed the high water losses and low water efficiency, but the full supply of plant water needed. Manuscript profile -
Open Access Article
987 - The Response of Genetic Diversity of Durum Wheat for Zinc Deficiency Stress in Calcareous Soil Using some Physiological Parameters
Sedigheh hajihoseinlou Ezatollah Esfandiari Esmaeil Karimi Levent OzturkZinc deficiency is a common problem in the agricultural lands of Iran, which is present in a significant part of them with different degrees. Among different wheat cultivars, durum is more sensitive to zinc deficiency than others. Considering the importance of Genetic d MoreZinc deficiency is a common problem in the agricultural lands of Iran, which is present in a significant part of them with different degrees. Among different wheat cultivars, durum is more sensitive to zinc deficiency than others. Considering the importance of Genetic diversity in breeding programs, the present study was carried out using 28 genotypes of durum wheat with the aim of identifying their behavioral response to zinc deficiency in calcareous soil, as a factorial experiment based on randomized complete block design with three replications. Results showed that zinc content and concentration in the shoots of tolerant cultivars like Dena and Cheheldaneh is not necessarily higher than susceptible cultivars such as Ozbec, Amonos and Aydin in both zinc deficiency and sufficiency conditions, and in resistant cultivars the concentration and content of zinc in the shoots may be less than the sensitive cultivars. In zinc deficiency condition, the lowest and highest dry weight of shoots were obtained in PGS and Cheheldaneh genotypes, respectively, and when sufficient it was obtained in Celcuklu and Cheheldaneh genotypes. The lowest zinc concentration in zinc deficiency belonged to genotype 45430 and the highest value belonged to Ozbec genotype. Also the lowest and highest zinc concentrations in zinc sufficiency were measured in genotypes Durbel and Mirzabey respectively. Genotype 45430 had the lowest and Ozbec had the highest zinc content in zinc deficiency condition. On the other hand in terms of zinc sufficiency, Amonos and Durbel genotypes commonly had the least zinc content and 45430 genotype its highest content. The most symptoms of zinc deficiency appeared in Durbel and the least symptoms were recorded in Dena genotype. In terms of zinc deficiency Zenit and Cakmak genotypes and by zinc application Mirzabey and Kunduru genotypes indicated the highest and lowest zinc consumption efficiencies, respectively. Manuscript profile -
Open Access Article
988 - Effect of Tillage Systems and Nitrogen Fertilizer on Agro Physiological Characteristics of Corn
Reza Imani Morteza Samdaliri امیر عباس موسویTo investigate the effect of tillage systems and nitrogen fertilizer on corn characteristics, in 2016 and 2017, a research field was conducted in the research farm of Islamic Azad University Chalous Branch during two cropping years.The experiment was performed as a spli MoreTo investigate the effect of tillage systems and nitrogen fertilizer on corn characteristics, in 2016 and 2017, a research field was conducted in the research farm of Islamic Azad University Chalous Branch during two cropping years.The experiment was performed as a split-plot in a randomized complete block design with three replications. Experimental factors include tillage at three levels (no-tillage, conservation tillage and conventional tillage) in the main plot and nitrogen fertilizer sources at four levels, including non-application of zero, 33, 66,and 100% of the recommended amount of nitrogen fertilizer based on the test. The soil was on a subplot.Comparing the average effect of tillage showed that the highest grain yield was obtained in conservation tillage treatment at the rate of 10247 kg/ha-1. Comparison of tillage's average effect showed that the highest biological product was received in conservation tillage at the rate of 15754 kg/ha-1. Comparison of the average interaction of the year in tillage also showed that the highest NUPE was observed in the conservation tillage treatment in the second year at the rate of 0.90 kg.kg-1, which showed an increase of 47% compared to the treatment no tillage in the first year. NUPE in tillage treatments increased in the second year compared to the first year, which was higher in conservation and non-tillage tillage treatments. Comparison of the average treatment of nitrogen fertilizer showed that the highest grain nitrogen was obtained in the treatment of 100% nitrogen fertilizer at the rate of 1.98%, which showed an increase of 25.7% compared to the control treatment.In general, the results of this study showed that by applying conservation tillage methods, the least damage can be done to the soil structure, and through this, maximum yield and efficiency can be achieved in the corn plant. Therefore, according to grain yield, the most appropriate treatment for the study area is the use of conservation tillage in the case of fertilizer application of 66% nitrogen. Manuscript profile -
Open Access Article
989 - Develop a quality model in education based on social capital and internal efficiency
Babak Bagheri Yadolah Mehralizade Mohammad Hosseinpour Leyla BahmaeiThe aim of this study was to develop a structural model of quality based on social capital and internal efficiency in theoretical secondary schools in Ilam province. The research method was descriptive and correlational in the form of structural equation modeling. The s MoreThe aim of this study was to develop a structural model of quality based on social capital and internal efficiency in theoretical secondary schools in Ilam province. The research method was descriptive and correlational in the form of structural equation modeling. The statistical population included all principals, teachers, heads of educational groups and heads of parents' associations of theoretical secondary schools in Ilam province in the academic year of 1997-98 and 220 people from 55 schools were selected by multi-stage cluster random sampling method as a sample. Were.Measurement tools included a social capital questionnaire and an internal efficiency index. Research data were analyzed using structural equation modeling and Smart pls2 software. The results showed that the pattern of structural equations of the relationship between social capital and the internal efficiency of the mentioned schools has a suitable fit. The results also showed that the relationship between social capital and positive internal efficiency is a significant positive relationship and the relationship between social capital and negative internal efficiency is a negative and significant relationship. These findings indicate that attention to social capital can be an effective step to increase the level of positive internal efficiency and reduce the negative internal efficiency of theoretical secondary schools. Manuscript profile -
Open Access Article
990 - Explaining the model of compensation system for municipal employees' organizational services with a combined approach (Study case: Zahedan Municipality)
Aref Noti zehi Mehdi Bagheri Serajojloldin MohebiEmployee compensation system is one of the effective strategies of organizations in order to achieve their goals and increase the efficiency of their employees. The purpose of this research was to design the model of compensation system for employees and also the feasib MoreEmployee compensation system is one of the effective strategies of organizations in order to achieve their goals and increase the efficiency of their employees. The purpose of this research was to design the model of compensation system for employees and also the feasibility model and effective establishment of compensation system for municipal employees. The researchmethod is a mixed approach, first it is analyzed quantitatively with pls software and then qualitatively with meta-composite and Delphi methods. In the meta-combination method, the necessary data was collected by interview and in the quantitative method by using a questionnaire. Findings and Conclusion: The findings of the research showed that the effective factors on the phased establishment of the employee compensation system were identified in three dimensions, 29 components and 123 indicators using exploratory analysis. Structural factors include infrastructure, enablers and institutions, strategy and strategy, process, upstream documents, knowledge management, communication, organizational structure and facilities of institutions. Background factors include human factors, expertise and skill, knowledge level, gender, technology acceptance, technology compatibility, technology complexity, age, income, electronic identity. Content factors include technology, economic-financial, political-administrative, social-cultural, legal- Regulations, e-government, network governance, location, hardware and software. The indicators considered for the sub-set of structural, content and contextual dimensions of telemedicine have had a meaningful explanatory effect. The ranking of factors showed that structural factors with a weight of 0.477 have the highest priority, then background factors with a weight of 0.366 and content factors with a weight of 0.157 have the greatest impact on the phased establishment of the employee compensation system. Manuscript profile -
Open Access Article
991 - Factor analysis of the efficiency model of educational leadership patterns among school principals (Case study: elementary principals of Masjid Sulaiman city)
Parvaneh Nazapour Samsami Farank Omidian Karim SavariThe purpose of the current research was to analyze the factorial model of the effectiveness of educational leadership patterns among school principals (case study: elementary school principals of Masjid Suleiman). The present research method was descriptive-quantitative MoreThe purpose of the current research was to analyze the factorial model of the effectiveness of educational leadership patterns among school principals (case study: elementary school principals of Masjid Suleiman). The present research method was descriptive-quantitative and practical in terms of purpose. The statistical population of this research was all the professors, experts, experts, managers and educational leaders of the Department of Education of Masjid Suleiman city, numbering 201 people. To determine the sample size, Morgan's table was used and 130 people were selected as the statistical sample size. The random sampling method was simple. The research tool was a researcher-made questionnaire based on qualitative findings. To analyze the data, a one-group t-test was used to compare the respondents' answers to each of the research questions using SPSS software. In the next part, confirmatory factor analysis method was used to validate the model using structural equation approach in Smart PLS software. The findings showed that the efficiency model of educational leadership models of schools was tested using PLS software and its validity was confirmed. The results of the first-order factor analysis of the dimensions of the efficiency model of educational leadership models showed that all the items (components) have a suitable factor load on the related variable and these factor loads are significant according to the t score at the 0.01 level. In other words, the t value corresponding to each factor load is greater than its critical value, i.e. 2.58 at the 0.01 level. As a result, it can be said that these gauges have the necessary accuracy to measure their respective structures. Manuscript profile -
Open Access Article
992 - A Comparative Study on the Teachers' Communication Efficiency in Different Educational Levels of Girl Schools in Kerman City and Its Related Personal and Mental Factors
Afsaneh Nikoobakhat Hamidreza Alavi Marzieh Yarizanganeh Mahdieh Zahir Salehi -
Open Access Article
993 - Validating Mathematics Teaching Efficacy Beliefs Instrument among Pre-Service Teachers in Primary Schools
Saied Farmani Ahmad Khamesan Abstract: The purpose of this study was validating the Mathematics Teaching Efficacy Beliefs Instrument (MTEBI) in pre-service teachers in primary schools. The population of this research included all college students in the field of primary education in South Kh More Abstract: The purpose of this study was validating the Mathematics Teaching Efficacy Beliefs Instrument (MTEBI) in pre-service teachers in primary schools. The population of this research included all college students in the field of primary education in South Khorasan province (N=186). To study reliability and validity of the questionnaire, 140 pre-service teachers were chosen by cluster sampling method from Teaching Training Center of Birjand. Then, Mathematics Teaching Efficacy Beliefs Instrument (MTEBI) was administered. The instrument validity was measured using factor analysis methods and Cronbach's alpha was used to evaluate the reliability. The results of factor analysis showed that this questionnaire include two fundamental underlying factors since all the items were loaded under two factors which are self-efficacy and expected results of teaching. The results also showed that the reliability of MTEBI was in acceptable level with the overall reliability index of 0.73 and the reliability index of self-efficacy subscales as 0.80, and the reliability index of the expected results of teaching mathematics as 0.66. Manuscript profile -
Open Access Article
994 - The relationship between the efficiency of in-service training courses and its role in the increase of effectiveness of the clerks Islamic Azad universities lorestan branch
Marzieh AstarakiAbstract: The main purpose of this research was knowing the rate of the effect of during work courses and its role in the increase of effectiveness of the clerks Islamic Azad universities lorestan branch which was done based on correlative search metho MoreAbstract: The main purpose of this research was knowing the rate of the effect of during work courses and its role in the increase of effectiveness of the clerks Islamic Azad universities lorestan branch which was done based on correlative search method .The static sample consisted of all .The clerks in1394,including588 people therefore ,based on Kokran sampling method 233wereselected. The data collection method in this research was the question aire .To analyze the information ,some tests like pearson were used by means of spss21.The results showed that there wasn’t a meaning ful relationship between during work courses and the increase of the capabilities of the clerks in Islamic Azad universities of lorestan ,but there was a meaning ful relationship among the realization of organization aims ,the clerks effectiveness ,and the needs of the clerks in these universities ,which ,finally, based on the obtained result some effective suggestions were delivered. Manuscript profile -
Open Access Article
995 - Preparing and practicing a Model to Investigate the Distributed Leadership Style of Principals and its Relationship with theempowerment of Human Resources at District Two of Sanandaj’s Secondary Schools.
rafigh hasani Someye nematiAbstract: this study aims in investigating the empirical relationship between principals’ distributed leadership style with the developmental aspects and also to empower teachers for the development of theorizing in this area. The present study is a quantitative a MoreAbstract: this study aims in investigating the empirical relationship between principals’ distributed leadership style with the developmental aspects and also to empower teachers for the development of theorizing in this area. The present study is a quantitative and descriptive approach which is of a correlational type. In order to do this research, 234 samples teachers were selected among all secondary school teachers of Sanandaj city. The data collection tool includes two questionnaires with Likert’s five spectrum.In the analysis of the relationship between variables, the results show that principals’ distributed leadership style has a meaningful and positive impact on the four components of the development of human resources. Therefore, the conceptual model was practiced with a high level. The results of this study underscore the importance of distributed leadership on the development and empowerment of organizational members and hence, increasing the effectiveness of schools.The author of the present study concludes that the distributed leadership style of principals is a necessary and significant factor in increasing the effectiveness or organizations due to its flexibility, providing organic structure and increasing individuals’ abilities. Manuscript profile -
Open Access Article
996 - The role of social and intellectual capital on promoting of human forces' efficiency: case study of teachers
shahram mehravar hosein molaeiPurpose of present research is prediction of teachers' efficiency according to social and intellectual capital indicators. Research method of this research is applied in terms of purpose and correlative-descriptive in terms of data collection. Statistical population of MorePurpose of present research is prediction of teachers' efficiency according to social and intellectual capital indicators. Research method of this research is applied in terms of purpose and correlative-descriptive in terms of data collection. Statistical population of research were school teachers of Parsabad Moghan town that we have selected the sample of 300 number by simple random sampling. The collection tool of data were standard questionnaires. Findings of research show that social and intellectual capitals totally predict teachers' efficiency and every indicators of predictive variables, social capital (r=0/31) and intellectual capital (r=0/28) positively and meaningfully predict Criterion Variable. As result, todays with attention to environmental changes wich educational organizations will face, education and training managers should establish social and intellectual capitals in teachers to promote their performance and efficiency. Todays, the reason of organizations' stability against environmental changes and enhancing staff's performance is value to capitals like social and intellectual capitals in organization. Manuscript profile -
Open Access Article
997 - The Role of spiritual intelligence and quality of work life in teachers’s self-efficacy
Siros ghanbari madineh hematiThe aim of present study is to investigate the effect of spiritual intelligence and quality of work life on teachers self-efficacy of elementary schools in Hamedan city in 1393. Using relative stratified random sampling and based on kerjci and Morgan table 310 teachers MoreThe aim of present study is to investigate the effect of spiritual intelligence and quality of work life on teachers self-efficacy of elementary schools in Hamedan city in 1393. Using relative stratified random sampling and based on kerjci and Morgan table 310 teachers selected. For data collection standard questionnaires of spiritual intelligence quality of work life, and teachers self- efficacy were used. For data analysis pearson correlation and multiple regression analysis were used. The results showed that spiritual intelligence and teachers self-efficiency of elementary schools were above the average(3) as well as their quality of working life was average(3). Between spiritual intelligence and teachers self- efficacy there was significantly positive relationship. As were as between quality of work life and teachers self –efficacy. The result of multiple regression analysis showed that using spiritual intelligence, quality of work life teachers we can predict teachers self-efficiency. Manuscript profile -
Open Access Article
998 - The relationship between empowerment of social workers and their job’s efficiency (social emergency mobile services of welfare organization across the country – 1393)
Ashraf Rezaii Habib Alah Agha BakhshiAbstract: The purpose of this research is to determine the relationship between the empowerment of social workers working in social emergency mobile services of welfare organization across the country and their job’s efficiency. The sample size includes 158 socia MoreAbstract: The purpose of this research is to determine the relationship between the empowerment of social workers working in social emergency mobile services of welfare organization across the country and their job’s efficiency. The sample size includes 158 social workers working in social emergency mobile services of welfare organization across the country. That was selected by the systematic random sampling method all over the country. The main research question is about that what is the relationship between empowerment and job efficiency of social workers working in the social emergency mobile services of welfare organization across the country? In order to study the components of empowerment and job efficiency, it was used a standardized empowerment questionnaire (Spritzer and Mishra, 1995) and job efficiency questionnaire (Hersey and Goldsmith, 1980). Reliability of both questionnaires was confirmed by using Cronbach's alpha coefficient 798/0 and 880/0, respectively. The validity of both questionnaires was confirmed via CVR content validity method. In this research, the independent variable of empowerment is 5 component and 15 questions and also demographic characteristics is 5 questions and dependent variable of job efficiency is 7 component and 26 questions. Total components of the independent variables have been studied with the dependent variable. Statistical analysis of the research questions was performed by univariate and bivariate descriptions, Spearman’ rank correlation coefficient test, Kendall's tau C coefficient test, Post Hoc test, Bonferroni Post Hoc test and multivariate analysis of regression. The results show that there is a significant relationship between empowerment variable and job efficiency variable. However, it was shown that in multivariate analysis of regression, from the 5 components of empowerment (sense of competence, independence, effectiveness, confidence and a sense of significance) most variable that is predictable for improve job efficiency, is sense of independence with (42 / 0%) and , is sense of confidence with (35/0). A component of significant wasn’t extensible with 048/0% and components of competence and effectiveness senses are negative. Regarding to demographic characteristics it has been recognized that none of these characteristics (Age, sex, education, field of study and work experience) have any positive impact on improving efficiency; even all of them indicate the opposite effect on improving efficiency with negative values. But also empowering effect on improving efficiency is predictable. Manuscript profile -
Open Access Article
999 - The effect between virtual and face-to-face education on learning efficiency among students of Kish Applied Science Center
mojtaba moazzami Gholam Reza HekmatiThe aim of this study was to investigate the effect between virtual and face-to-face education on learning efficiency among students of Kish Applied Science Center. The research method was descriptive-correlation.The statistical population of all students of Kish Univer MoreThe aim of this study was to investigate the effect between virtual and face-to-face education on learning efficiency among students of Kish Applied Science Center. The research method was descriptive-correlation.The statistical population of all students of Kish University of Applied Sciences was 827, which according to Morgan's formula, 262 people were selected as a simple random sample. Data analysis was performed using regression test and SPSS-18 software.Significance level of comparison of learning efficiency among face-to-face and virtual education students which is equal to 0.036 and is less than 0.05, so there is a significant difference between learning efficiency between face-to-face and virtual education students because the rate of learning efficiency in face-to-face students is equal. 1/4 which is more than virtual students. This shows that face-to-face education has more effect on students' learning in different dimensions of content, resources and educational materials, information technology and smart tools and teaching strategies. Manuscript profile -
Open Access Article
1000 - A technique for identifying congestion in Data Envelopment Analysis
Amin Jabbari Farhad Hosseinzadeh Lotfi Mohsen Rostamy MalkhalifehData Envelopment Analysis (DEA) is a non-parametric mathematical programming method used to assess performance and measure the efficiency of Decision-making Units (DMUs) that operate with multiple concurrent inputs and outputs. The performance of these units is influen MoreData Envelopment Analysis (DEA) is a non-parametric mathematical programming method used to assess performance and measure the efficiency of Decision-making Units (DMUs) that operate with multiple concurrent inputs and outputs. The performance of these units is influenced by the utilization of input resources. While an increase in input utilization typically leads to higher production levels, there are scenarios where increased input usage results in decreased outputs. This phenomenon is termed congestion. Given that alleviating congestion can reduce costs and enhance production, it holds significant importance in economics. This paper introduces a method for identifying congestion based on a defined modeling framework. A DMU is considered congested when reducing inputs in at least one component leads to increased outputs in at least one component, and increasing inputs in at least one component can be achieved by reducing outputs in at least one component, without improvement in other indicators. The paper explores congestion in DMUs with both increasing and decreasing inputs. Manuscript profile -
Open Access Article
1001 - An innovative approach to investigate the impact of human resource risk on production productivity with the moderating role of knowledge maturity in the Organization of Industry, Mining and Trade of Tehran Province
Tahereh HasoomiThe purpose of this research is the innovative approach of human and financial resource risk on production productivity with the moderating role of knowledge maturity. The method of this research is quantitative and its purpose is practical. This research is a quant MoreThe purpose of this research is the innovative approach of human and financial resource risk on production productivity with the moderating role of knowledge maturity. The method of this research is quantitative and its purpose is practical. This research is a quantitative research with an applied purpose and a descriptive survey strategy. The statistical population of the research was formed by the experts of the Organization of Industry, Mining and Trade of Tehran Province. The research sample is based on simple random sampling and 108 people were obtained using Cochran's limited population formula. The validity of the research questionnaire was obtained through face validity (expert opinion) and construct validity (confirmatory factor analysis) and its reliability was obtained through Cronbach's alpha coefficient. The results of the path analysis test showed that, in general, human resource risk and financial risk have a significant negative effect on production productivity in industry, mining and trade organizations.At the same time, according to the moderating role of knowledge maturity, the risk of human and financial resources has a positive and significant effect on the productivity of production in the organization of industry, mining and trade Manuscript profile -
Open Access Article
1002 - Recent Advances in the Development of Quantum Materials for the Construction of Solar Cells: A Mini Review
O. Ashkani B. Abedi-Ravan Y. YarahmadiSolar cells are one of the most important equipment’s in the field of clean and novel energy that can be used without chemical pollution. Solar cells are very valuable equipment that by using them, in addition to reducing environmental pollution, can benefit from clean MoreSolar cells are one of the most important equipment’s in the field of clean and novel energy that can be used without chemical pollution. Solar cells are very valuable equipment that by using them, in addition to reducing environmental pollution, can benefit from clean energy. Solar cells are generally used in various industries, including aerospace, clean energy and even transportation. In the meantime, increasing the efficiency of solar cells is of great importance, and the development of quantum science has made a significant contribution to this issue. The use of quantum dots containing different materials such as graphene, carbon, gallium, lead and similar materials can increase the efficiency of solar cells from 3 to more than 50% on average. Also, the power conversion efficiency in solar cells developed with quantum dot technology reports from 1 to more than 15% improvements compared to conventional solar cells. In this research, to summarize the latest achievements in this field, an overview of the importance of quantum dots about the development of solar cells has been done. Manuscript profile
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