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Open Access Article
1 - Investigation and simulation of power control plan in energy harvesting telecommunication systems
Nasrollah Bayat Azar Mahmoodzadeh FATEMEH SAFAEIIn the upcoming research, our effort is to study energy-harvesting telecommunication systems with one transmitter-one receiver for a Gaussian white noise telecommunication channel with fading. Harvested energies and channel fading are independent and identically distrib MoreIn the upcoming research, our effort is to study energy-harvesting telecommunication systems with one transmitter-one receiver for a Gaussian white noise telecommunication channel with fading. Harvested energies and channel fading are independent and identically distributed processes, and information about harvested energies and channel gain is causally provided to the transmitter. The transmitter is equipped with a rechargeable battery with limited storage capacity.Our goal is to obtain an online power control scheme that maximizes the average data transmission rate over a telecommunication interval of unlimited length. A low-complexity algorithm based on online convex optimization is proposed to guarantee the energy availability of the energy harvesting node and to maximize the long-term average data transmission rate. The proposed algorithm limits the maximum transmission power by knowing the state of charge and allocates the transmission power based on historical information. Simulations have been performed to show the effectiveness of the algorithm by considering input energy with different distributions, as well as channel coefficientswith different distributions. The proposed algorithm performs better than its peers in different energy harvesting rates. Manuscript profile -
Open Access Article
2 - Steady-state electron trajectories in a free electron laser with ion-channel and axial magnetic field in the presence of self-fields
T. Mohsenpour -
Open Access Article
3 - Nanoscale effects on multichannel add/drop filter based on 2-D photonic crystal ring-resonator heterostructure
Hamed Pezeshki Vahid Ahmadi -
Open Access Article
4 - Proton driven plasma wakefield generation in a parabolic plasma channel
Y. Golian D. Dorranian -
Open Access Article
5 - Semiclassical treatment of fusion and breakup processes of 6,8documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$^{6,8}$$end{document}He halo nuclei
Fouad A. Majeed Yousif A. Abdul-Hussien -
Open Access Article
6 - Discussion on Rayleigh equation obtained for a Hall thruster plasma with dust
Jasvendra Tyagi Dimple Sharma Hitendra K. Malik -
Open Access Article
7 - Definition of mission and vision of media organizations. Case study: learning (amoozesh) Channel of Islamic republic of iran broadcasting
youseph norouzgendeshmin Taher RoshandelDefinition of mission and vision of media organizations. Case study: learning(amozesh) Channel of Islamic republic of iran broadcasting Abstract Nowadays, if organizations pursue sustain growth and development, they have to consider the definition of mission and vision MoreDefinition of mission and vision of media organizations. Case study: learning(amozesh) Channel of Islamic republic of iran broadcasting Abstract Nowadays, if organizations pursue sustain growth and development, they have to consider the definition of mission and vision. Amozesh channel as a media organization take a great social responsibility and to meet its high goals and objectives needs to strategic planning which considers environmental fluctuation and complexity. The goal of this research is to define mission and vision of amozesh channel of Islamic republic of iran broadcasting as the first step of strategic planning. To achieve this goal , this research uses in-depth interviews with executives of media organizations and academics . these interviews had analyzed with codifying and categorizing of 240 meaningful sentence. Repeating codifying reduces these sentences to 120 relevant sentences. After that ,the analysis of these sentences resulted in 11 category for mission framework and 3 category for vision platform. Finally , this categories shaped the mission and the vision of Amozesh channel. Key words : mission, vision, amozesh channel, Islamic republic of iran broadcasting, codifying and categorizing Key words : mission, vision, amozesh channel, Islamic republic of iran broadcasting, codifying and categorizing, Islamic republic of iran broadcasting, codifying and categorizing Manuscript profile -
Open Access Article
8 - The Relationship of the Rate of Watching Sabalan channel's Programs with the Change of the Environmental Behaviors (Case Study: Students of Islamic Azad University, Ardabil Branch)
zaynab jafari ali jafariThe main purpose of the present study was the relationship of the degree of watching Sabalan channel's programs with the change of the environmental behaviors (case study of Islamic Azad University students). This study used survey method. The unit of analysis in the st MoreThe main purpose of the present study was the relationship of the degree of watching Sabalan channel's programs with the change of the environmental behaviors (case study of Islamic Azad University students). This study used survey method. The unit of analysis in the study was individual in general and "students" in particular. The population included 380 students of Islamic Azad University which were identified by Cochran formula. There was a meaningful relation between hypotheses of responsible behavior and conscious behavior with the degree of watching Sabalan channel's programs. And, there were not meaningful relation between compassionate behavior, desirable behavior, and membership in environmental organizations with the degree of watching sabalan channel's programs. In regression analysis, the regression was 0.018 which was less than 1% of the variables of the study. Manuscript profile -
Open Access Article
9 - A survey on the discourses of the websites of the IRIB News Agency and Iran International TV channel in the 11th parliamentary elections in Iran
Mostafa Gholami Ebrahim Fathi jahandar amiriElection is a phenomenon through which people play a role in determining their own destiny and the acceptance of their country in today's world. In the days of elections, various media, relying on their accumulated social capital and the trust and confidence that the au MoreElection is a phenomenon through which people play a role in determining their own destiny and the acceptance of their country in today's world. In the days of elections, various media, relying on their accumulated social capital and the trust and confidence that the audience has in them, present their desired discourses in order to attract and guide the people towards their desired goals and objectives. The results of the media alignment and discourse battle are also determined immediately after the vote count. Registration of 42.57% turnout in the 11th parliamentary elections, which is the lowest turnout in all previous periods of the Iran's election history, requires exploring and analyzing the discourses of actors active in this field, which IRIB News Agency website and Iran International TV channel Website were selected in this study. The purpose of this study is to determine the discourse of the mentioned media by thematic analysis the texts of their election news in the period of January 21 to February 29, 2020 using MAXQDA software. Findings show that the discourse of IRIB Agency News Website with the nodal point of “maximum participation in the election” consists of the surrounding signifiers of “election”, “Islamic Republic”, “enemy” and “people” and the discourse of Iran International TV channel website with the nodal point of “election boycott” also includes the signifiers of “Islamic Republic”, “election”, “people” and “corona”. The framings and Image making of both media have fully served the nodal points of their desirable discourse. The low turnout in this election indicates the the discourse of election boycott has become hegemonic and its success in consolidating its semantic system and creating more consensus in the target community. Manuscript profile -
Open Access Article
10 - Investigating and prioritizing the effective factors of Media Reputation for News Messenger Channels
Parisa Nezami Seyed mahdi Sharifi Abbas Nargesian Mehran RezvaniWe are in an age where competition and the challenge of survival have become a serious issue for all organizations, and social media news channels are no exception and are involved; As we can see, failed news channels are quickly overwhelmed by members. In such a situat MoreWe are in an age where competition and the challenge of survival have become a serious issue for all organizations, and social media news channels are no exception and are involved; As we can see, failed news channels are quickly overwhelmed by members. In such a situation, having a reputation and maintaining the credibility of the channel is one of the most important tools for promoting the activity of news media in messaging networks. The present study uses interpretive approach and quantitative method to investigate and prioritize the factors influencing the media reputation of news messaging channels. This research first presents a model of the media reputation of news messaging channels using the qualitative method of "Foundation Data Theory" and then uses the Friedman test to prioritize identified factors. The study population is 384 users who are members of the news channels of messengers in Tehran, which was selected using non-probabilistic sampling method. In order to provide the model, according to the results of interviews and analyzes, the CCG family of six was used and the Friedman test was used to prioritize the factors. One of the effective factors identified in the media fame model is "professional news features", in the first priority; Professional and committed management is the second priority, infrastructure and messenger accessibility are the third priority, interactive environment is the fourth priority, ethical requirements are the fifth priority and competitive environment is the sixth priority. Manuscript profile -
Open Access Article
11 - Representation of social damages in TV series (content Analysis of Sabalan channel between 2006 – 2016)
mohammadbagher sepehriAbstract This paper aims to study social damages represented in Sabalan TV series during the process of ten years (2006-2016) have been completed. Basis of the work is based on the trend study and with content analysis which has followed by a known issue (social damages MoreAbstract This paper aims to study social damages represented in Sabalan TV series during the process of ten years (2006-2016) have been completed. Basis of the work is based on the trend study and with content analysis which has followed by a known issue (social damages) in an identified format from media structure (TV series). Series accordingly considered that as a mirror reflex realities of Ardabil society or is the part of reality that construct life of people with images that is not true. Family dis function is the major cause of injury presented. the most important research findings determine the type of media representation in Sabalan channel. The results show that Sabalan channel in representation of social damages in some scenes, the representation are the real, including women's issues, family problems, violence, the provision of suitable breeding, increasing social damages, emphasizing the interaction and dialogue and in some other scenes, a kind of constructive and hyper reality are dominant. Constructive representation of men's vulnerability and the persistence of women in this regard, the middle class vulnerability, while the lower classes are more vulnerable than other classes, are among the most important issues to be mentioned. Keywords: representation, constructive, social damages, trend study, TV series Manuscript profile -
Open Access Article
12 - Brand personality typology for Media organizations (Case: Iranian TV channel and Persian satellite channels)
mohammad reza parizad reza ebrahim zadeh Mehrdad SadeghiIntroduction: The Purpose of thise study is typology of media organizations' brand personality with a thematic analysis approach(Case study: Iranian TV channels and Persian language satellite TV channels) To reach Network of themes. Method: In order to answer the main r MoreIntroduction: The Purpose of thise study is typology of media organizations' brand personality with a thematic analysis approach(Case study: Iranian TV channels and Persian language satellite TV channels) To reach Network of themes. Method: In order to answer the main research question, thematic analysis method was used. Three major themes have been identified with the titles of brand credibility, brand femininity-masculinity, brand modernity. The area of research has been all reputable databases such as Obsco, Emerald, Science Direct, Elsevier, ProQuest and articles related to the field of brand, brand personality and media organizations. Findings: Based on the thematic analysis approach, an attempt was made to extract themes related to the brand personality of media organizations. Which after clustering, Merge and delete shared codes: 133 key themes, 8 integrating themes and 3 macro themes were obtained. Lincoln and Guba approaches were used to explain the validity of the study, which shows the acceptable validity of the results. Holsty method was used to evaluate the reliability, based on which the calculated reliability was 0.911 and higher than the standard value of 0.7. Conclusion: The results were analyzed in the form of a network of themes and led to the development of the final research model. Manuscript profile -
Open Access Article
13 - Development of Branding Model for TV Networks with the Approach of Strengthening Social Capital Case Study: Nasim Network
Reza Saremi ahmad reza shekarchi zadeh Naser Khani seyed Mohsen BanihashemiToday, the role of television media in society is declining, and perhaps one aspect of it is the reduction of social capital of the media brand, and another reason is cyberspace, which is increasing its popularity. The purpose of this study was to build a suitable model MoreToday, the role of television media in society is declining, and perhaps one aspect of it is the reduction of social capital of the media brand, and another reason is cyberspace, which is increasing its popularity. The purpose of this study was to build a suitable model for branding Nasim TV network to increase social capital using structural gap theory and social resources. The statistical population of this study included professors and managers of the radio network and media activists who were selected from the method of targeted sampling and snowballs based on the inclusion criteria. The required information was obtained by using documentary studies and semi-structured interviews for 908 minutes and 10 interviews with theoretical saturation condition. The results were analyzed using content analysis method using MAXQDA 2020 software. The results of the analysis included: 262 primary data, 70 citation themes and 3 basic themes in structural, cognitive and communication dimensions. The results showed that the main factors affecting human capital on television network branding, in the structural dimension include the themes of communication, program structure, network intensity and shape, and organizational compressibility and appropriateness, and in the cognitive dimension include the themes of common goals. Common insights have been the value of language, reason, and mind, and also in terms of communication include themes, network commitments, interrelationships, norms, and trust. Nasim Network should pay more attention to social capital in renewing its brand attitude. Manuscript profile -
Open Access Article
14 - Cultural Programs in Kerman Provincial Channel
Ruhollah Ahmadzadeh Kermani Ali SoltaniThis research aims at recognizing public attitudes towards the cultural programs of Kerman provincial channel. Given the potentials of subcultures, ethnic and language diversity and other distinct features, local channels play a crucial role, and the preservation and de MoreThis research aims at recognizing public attitudes towards the cultural programs of Kerman provincial channel. Given the potentials of subcultures, ethnic and language diversity and other distinct features, local channels play a crucial role, and the preservation and development of ancient values paves the way for national integration. Dealing with native dialect, music, poems and literature, proverbs and handicrafts have been the native and cultural criteria of these programs. The research method was survey, and questionnaires were used as a tool for collecting data. The sample size was 400 adults, aged 15 and older in Kerman. Sampling was done through two stage cluster method. The findings show that the positive attitude towards cultural programs has increased by increasing the age of respondents. The younger respondents have asserted less positive attitudes towards cultural programs of the channel. In other words, there is a direct correlation between respondents' attitudes towards native culture and their attitude towards the cultural programs of the channel. In sum, public attitude regarding that how the provincial television station deals with cultural programs is positive and most of them have regarded the channel as successful in dealing with cultural programs. Manuscript profile -
Open Access Article
15 - A comparative study of citizen trust Kermani to first News Channel and BBC Persian TV
Somayeh sadat mahdavi Fatemeh ahmad nejhad atooIn this research, the goal is to study adjustment trust of Kermani citizens in Channel 1 and BBC Farsi Satellite channel.Indices of trust and variables effective on that have been extracted from theories of news image making, stigmatizing, fourtheories of press, use and MoreIn this research, the goal is to study adjustment trust of Kermani citizens in Channel 1 and BBC Farsi Satellite channel.Indices of trust and variables effective on that have been extracted from theories of news image making, stigmatizing, fourtheories of press, use and gratification, persuasion, Kent Asp and J.Westersthal. Indices trust have been tested with LikertSpectrum. Sincerity and clarity in news, impartiality against special groups and parties, adjustment of news content andsubjects with the audience’s need, comprehensibility of news for the audience and meeting more news needs of audience arethe trust indices. Statistical population of citizens with age of 18 above resided at 5 districts of Kerman City. Data werecollected in 2012 from 400 people with survey method and questionnaire technique in stratified and simple sampling method.Research results show that Kermani citizens averagely trust in news of Islamic Republic of Iran channel 1. Only 10.8% of thecitizens used BBC Farsi satellite Channel. Manuscript profile -
Open Access Article
16 - Evaluation of Training Programs and TV Series of Channel 5 in the Citizenship Skills
Abdolreza Shahmohammadi Saeedeh-Sadat HashemipoorThis study aimed at investigating the role of educational programs and TV series of Channel 5 in citizenship skills, various scholars' views as well as students of Central Tehran Communication Sciences at were discussed and then their attitudes were used. The statistic MoreThis study aimed at investigating the role of educational programs and TV series of Channel 5 in citizenship skills, various scholars' views as well as students of Central Tehran Communication Sciences at were discussed and then their attitudes were used. The statistical population consists of the students of Central Tehran Communication Sciences. In the present study, the Total numbering and targeted sampling methods were used. Thus, the total statistical population is selected as a sample. This study is applied and survey method in respect of the aim and implementation. of The data collected is the field and library method and gather the means of collecting information and data required is questionnaire, containing 35 Items and have been adjusted by the investigator; and the reliability based on Cronbach's alpha coefficient is estimated 0/ 74 that proves the high validity of the measurement instruments. In the fourth chapter researcher analyzes the findings, the data analyzed in this research has been descriptive and inferential statistics. The data were described in two main and contextual variables with indexes of absolute and relative Frequency, mean, standard deviation and variance presented in tables and the Kolmogorov–Smirnov (KS) and T tests of a community were used for testing the hypothesis. Manuscript profile -
Open Access Article
17 - Explore the Underlying Factors Motivating Viewers to Watch Persianspeaking Satellite Channels
Mehrdad Matani Ali Akbar FarhangiThe variety of programs and the complexity of media can have a role in making viewers prefer one channel to the other one,but this preference is largely due to the amount of satisfaction on the part of the viewer towards a particular medium. To thisend, this study sough MoreThe variety of programs and the complexity of media can have a role in making viewers prefer one channel to the other one,but this preference is largely due to the amount of satisfaction on the part of the viewer towards a particular medium. To thisend, this study sought to explore the underlying factors motivating viewers to watch Persian-speaking satellite channels. Theparticipants were 458 viewers of satellite channels, chosen based on purposeful sampling technique from all the residents ofQaemshahr, a city in north of Iran. This study was a survey, which used a questionnaire, developed and validated by theresearcher, to gather data. Non-parametric techniques were also used to analyze the data in this study. The descriptivefindings illustrated that most of the viewers tended to watch satellite channels between 3 to 4 hours, on average, every night.The results also showed that viewers were more interested in such entertaining programs as movies, TV series, music, andgame shows. They were also eager to watch such amusing programs as sports events, scientific programs, news programs,news commentaries, and documentaries to satisfy their needs. The findings also revealed that gender was a determiningfactor in the choice of programs and affected the manner viewers used satellite channels. According to the results, menmostly used satellite channels more than women to keep updated about news and political reports; whereas, women tended towatch them more than men for their social needs. Manuscript profile -
Open Access Article
18 - Retaining Customers with the Experience of Using Mobile Phones in Omni channels: The Moderating Effects of Product Information Overload and the Attractiveness of Alternative Products
ERPHAN DADASHZADEH HORMOZ MEHRANI KARIM HAMDI HAMDIWith the advancement of technology and digitalization, various communication channels such as the Internet, mobile phones, social media and physical stores are available for customers to communicate with retailers, but these channels are independently managed and It lea MoreWith the advancement of technology and digitalization, various communication channels such as the Internet, mobile phones, social media and physical stores are available for customers to communicate with retailers, but these channels are independently managed and It leads to the mismatch of data and information in different channels, and in order to achieve integration in different channels, it is necessary to change to an all-round approach.This research deals with "investigating the retention of customers with the experience of using mobile phones as tool of omnichannel with regard product information overload and the attractiveness of alternative products". The research is applied, descriptive and survey. The population of brands restaurant customers in Tehran is a sample of 384 people who were surveyed by stratified sampling method. The data collection tool is a 43questionier, and hypotheses were tested with structural equations and pls software. The results show that the experience of connection is on access integrity, the experience of integration is on the integrity, the experience of flexibility is on the integrity, the experience of personalization is on the integrity, the experience of personalization is on the information richness integrity, access integrity customer retention, and information richness integrity has positive effect on customer retention. The experience of continuity of use on the integrity, the experience of connection on the information richness integrity, the experience of integrity on the information richness integrity, the experience of continuity of use on the integrity of information richness, and the experience of flexibility on the information richness integrity do not have a positive effect. Information overload is a negative moderating role in the impact of connection experience on access integrity; and the effect of connection experience on the information richness integrity. The attractiveness of alternative products has negative moderating role in the effect of the connection experience on the access integrity and the effect of the connection experience on the information richness integrity. Manuscript profile -
Open Access Article
19 - The meta - analysis studies of the the pathology of tehranian families tendency to newly established Persian -language Channels in Region 1 zone 3
A. PAKRAVAN Seyed Mehdi AghapourHassiri. Farhad EmamjomeThe results of this study showed that the significance level of Sperman's correlation test was less than 0.05 and there is a meaningful relationship between the familiarity and enjoyment of foreign culture (cultural invasion) and the trend of Tehran's families to the ne MoreThe results of this study showed that the significance level of Sperman's correlation test was less than 0.05 and there is a meaningful relationship between the familiarity and enjoyment of foreign culture (cultural invasion) and the trend of Tehran's families to the new networks of Persian-language satellite establishment. Also there is a significant relationship between the weakness of national media performance and the tendency of Tehran families to the new networks of Persian language establishment. Also there is a meaningful relationship between the modality and the tendency of Tehran families to the new networks of Persian-language satellite establishment. So there is a significant relationship between consumerism and the tendency of Tehran families to the new networks established in Persian language satellite language The significance level of Pearson correlation test is less than 0.05. The researcher measures such as strengthening his own culture and showing its high values to the low levels of society. The advent of voice and video and the protection of family privacy in order to counteract the negative effects of satellite films to deal with satellite damage. Manuscript profile -
Open Access Article
20 - Studying the role of sport channel programs in the promotion of sport culture among the housewives as the members of 5th district of Tehran Capital
Azar Gholizadeh Sepideh seyyed salehiIntroduction and Aim: The category of sport culture is specified through dividing the culture in to the exponential components. Meanwhile one of the societal sections which are in the prominent need of sport functions can be identified as the housewives. Various researc MoreIntroduction and Aim: The category of sport culture is specified through dividing the culture in to the exponential components. Meanwhile one of the societal sections which are in the prominent need of sport functions can be identified as the housewives. Various researches accomplished in this specified area, emphasize on the positive effect of media and especially the T. V channels on the alteration of people’s attitudes and behaviours towards the sport. The T. V sport channel program which has newly been established, is giving out specified on-Line services to different class of audiences in the society. The present research was accomplished with the objective of investigating the role of sport channel programs in the promotion of sport culture among the housewives as the members of 5th district of Tehran capital. Method: The research method is called descriptive- measurement and the statistical universe includes 1841 total houseviwes as the members of private clubs situated in the 5Th district of Tehran capital of whom 317 individuals were selected as the statistical sample by applying class-random procedure with the utilization of cocheran sample volume formula. The research instrument was a research-made questionnaire including two parts. Findings:The research data was analyzed in the two Levels of descriptive statistics and inferential statistics including one- variable t- test, Fridman test and multi-solutions variance analysis. Findings of the research indicate that the role of sport channel programs in the promotion of sport culture of the housewives was less than medium level by the mean value of 2.91 and the change of their attitudes by the mean value of 2.60. Mean while, the promotion rate of cultural values in housewives ’sport programs was computed as the medium Level by the mean value of 2.98; the promotion rate of religious values by the mean value of 2.97; the promotion rate of cultural norms by the mean value of 3.03; the rate of women’s contribution in sport activities by the mean value of 2.99 at the whole. Conclusion: According to the findings of the research, there was no meaning ful difference between the role of sport channel programs and promotion of housewives sport culture due to the sex, age, number of children, education, the rate of watching sport channel programs, employment, the rate of leisure time positions, sport, financial expenses, permanent continuous membership, and administration of sport exercises according to T. V sport programs. Mean while, there was a significant difference between the role of sport channel programs in promotion of sport culture of housewives, due to their marital status. Manuscript profile -
Open Access Article
21 - Performance Evaluation on Channel 3 Telecasts of IRIB From the points at view of youths
دکتر ابراهیم عباسی جواد کاشانی اسدیIn this research, in order to evaluate the performance of Channel 3 Telecasts ofIRIB the researchers study the points of view of media experts and youths andaddition to studying the situation of media, they divided the duty of this channel intoseven axis and express the MoreIn this research, in order to evaluate the performance of Channel 3 Telecasts ofIRIB the researchers study the points of view of media experts and youths andaddition to studying the situation of media, they divided the duty of this channel intoseven axis and express the importance of performance evaluation in organizations andits philosophy in traditional and modern system of this channel as well. They continueby studying two different views one of them belongs to media experts (managers andproducing and broadcasting agents at channel 3) and the next belongs to customersthat youths are its main part and show ways to improve the telecasts in terms ofquality and quantity. Manuscript profile -
Open Access Article
22 - The cultural position of sport channel programs by the focus on Globalization process
Fatemeh Azizabadi Farahani Reza DastaniIntroduction and Aim: Sports and related phenomena are considered among the realms in which the media plays a significant role for their reflections towards audiences. Media is regarded as the substantial grounding factor for the Globalization process and it is recogniz MoreIntroduction and Aim: Sports and related phenomena are considered among the realms in which the media plays a significant role for their reflections towards audiences. Media is regarded as the substantial grounding factor for the Globalization process and it is recognized as the main element for Tran’s fering the culture into the society. Therefore, recognition and identification of the performance of sport programs in the realm of culture due to the category of Globalization is primarily necessary. Purpose of the study the objective of present research is to scrutinize the cultural status of sport channel programs with the emphasis on Globalization from the viewpoint of experts and sport programmers. Method: This research is applicable due to its related objective; it is descriptive, due to the pertinent strategy; it is measurement-based, due to the implementation procedure. Meanwhile, the required data and information are collected by quantitative case study procedure. Statistical universe of the research includes the total experts and authorities regarded as the managers, custodians and sport channel programmers whom are selected by purposeful sampling method. The sample volume consists of 118 managers, programmers and experts. Findings: The research data was analysed in the two levels of descriptive statistics by computing statistical indices such as the mean value and standard deviation in the forms of pertinent schedules and inferential statistics by applying kelmogrov-smirnov test, independent t- test and one- sample t-test. This procedure was implemented by applying spss 19 software with the significance level of p 0.05. Conclusions: Findings of the present research indicate that there is a meaningful difference between the observed status and expected position in the cultural grounds of sport channel programs, due to the displaying status of sport fields, selecting status of sport tournament, vestment and make-up positions, the status of convention, Identity positions, the status of women’s sports and the leisure time in sport programs. Meanwhile, there is a significant difference between the viewpoints of experts and programmers, due to the selecting status of sport tournament, the status of convention, Identity positions. The status of women’s sports and cultural position of sport programs. Whereas, there is no meaningful difference between the viewpoints of experts and programmers due to the displaying status of sport fields, vestment and make- up positions, and the leisure time in sport programs. Manuscript profile -
Open Access Article
23 - Energy study at different solvents for potassium Channel Protein by Monte Carlo, Molecular and Langevin Dynamics Simulations
F. Mollaamin T. Nejadsattari I. Layali -
Open Access Article
24 - A simulation study of calcium release channel
M. Monajjemi H.H. Haeri S.M. Hashemianzadeh M. Gholami K. Zare -
Open Access Article
25 - The Role Drainage Plate Network, Channel and Ecological Reservoir in the Management of Urban Surface Runoff; Case Study: Town of Sajadieh Tehran
Saeid Amanpour Morteza Abiyat Mostefa AbiyatVeneered surfaces, roofs of buildings, streets and the like in urban areas as a barrier against the infiltration of rainwater into the soil and groundwater recharge.They cause more of rainfall to surface runoff and floodsto be converted. Combined method influence, stora MoreVeneered surfaces, roofs of buildings, streets and the like in urban areas as a barrier against the infiltration of rainwater into the soil and groundwater recharge.They cause more of rainfall to surface runoff and floodsto be converted. Combined method influence, storage and transmission of Atlantis, as the most urban runoff management approach, including implementation of a network of underground ducts, using Atlantis materials and execution of drainage layers on it and store water collected from the network. In this way, the possibility of penetration, transfer and storage provided and benefit levels increased urban streets as well as the transfer and accumulation of contamination is prevented. Town sajadieh located in the lower elevations of the highway and besat shahrzad and street in the south and west causes waterlogging town streets in the rain times. The present study has a descriptive, analytical approach and to investigate the role drainage plate networks, channel and ecological reservoir as the new approach in connection with control and management of surface runoff in town sajadieh Tehran. Manuscript profile -
Open Access Article
26 - Identify river geomorphic figures – part 1: Review of channel bed morphology (case study: northern catchments of central Alborz – Challos to talar )
M.M Hosseinzadeh رضا Esmaili صدرالدین MotevaliRivers are characterized by a continuum of morphological diversity. River geomorphicunits also based on their setting in channel and valley divide to four parts, includingchannel bed morphology, various mid channels, bank-attached and floodplain features.Two primary cha MoreRivers are characterized by a continuum of morphological diversity. River geomorphicunits also based on their setting in channel and valley divide to four parts, includingchannel bed morphology, various mid channels, bank-attached and floodplain features.Two primary channel-reach are recognized; bedrock and alluvium that theirfeatures including: fall, pothole, rapid, cascade, step-pool, plane bed (run), pool-riffleand sand ripple-dune. This paper provides a review of previous researches in rivergeomorphic units that samples and features produced from northern catchments ofcentral Alborz. The examination these river geomorphic units provide a simplyunderstanding of water and sediment transport regime and river behavior. Manuscript profile -
Open Access Article
27 - Zoning of Natural Disaster in Decreases in Roads with Emphasis of Digital Elevation Model Case Study: Chaloos Road(Karag Dam to Kandovan Channel)
منیژه GhahroodiElevation models, a numerical expression of the continuous changes in ups anddowns, are capable of demonstrating roads at their actual positions, and facilitate thepossibility of mountain roads management. These models are also capable ofcomputing the potential of natur MoreElevation models, a numerical expression of the continuous changes in ups anddowns, are capable of demonstrating roads at their actual positions, and facilitate thepossibility of mountain roads management. These models are also capable ofcomputing the potential of natural risks by means of satellite pictures, and can proveuseful in decreasing road accidents.For the present study, the author selected part of Chaloos Road, from Karaj toKandovan, where numerous accidents have occurred. As this part of the road issituated within the drainage basin of Karaj (Amir Kabir) Dam, the study drew on theelevation model (DEM) of this basin, which was extracted from satellite (SRTM)pictures. From this model, hillshade layers were extracted, and layers of adjustmentcurve, drainage system, gradient, gradient direction, and route of the largest gradientwere prepared. Moreover, this part of the road was extracted from a map at a scale of1:50000, and was placed in the above set of layers after being benchmarked. Followinganalyses, the potential of natural risks on this road was assessed. Manuscript profile -
Open Access Article
28 - Explaining the Role of Communication Channels on Adaptation of Farmers towards Drought: The Case of Central part of Marvdasht Township
Masoumeh Forouzani Omid M. Ghoochani Milad Taqipou Mojtaba DehghanpourThe purpose of this study was to explain the role of communication channels on farmers' adaptation intention towards drought using planning behavior theory. The research instrument was a researcher-made questionnaire which its validity and reliability were confirmed by MoreThe purpose of this study was to explain the role of communication channels on farmers' adaptation intention towards drought using planning behavior theory. The research instrument was a researcher-made questionnaire which its validity and reliability were confirmed by a group of subject specialists and doing a pre-study and calculating the Cronbach's alpha coefficient, respectively. The population of this study consisted of farmers in the central part of Marvdasht township (N=8602), of which 367 individuals were estimated using Krejcie and Morgan tables and using random sampling method Simple were selected. The results indicated that there is a meaningful difference in adaptation’s behavioral intention towards drought based on the communication channels they have been used. According to the findings, the highest average of behavioral intention was related to the television and agricultural experts at the same time. Also, the results showed that the least average behavioral intention was related to friends and relatives. This finding also confirmed by the Bonferoni sequence test. Finally, the effect of each variable of the theory of planned behavior on the behavioral intention of the respondents based on each communication channels determined. The results indicated that the subjective norm influences on respondent's behavioral intention in all communication channels. According to the findings, some suggestions were made for the proper decision making of using communication channels in order to prepare for climate change. Manuscript profile -
Open Access Article
29 - Velocity and turbulence distribution in two phase air-water flows on stepped floodway channels
Mohammad Reza Beheshti Amir Khosrojerdi Hossein Sedghi Seyed Mahmud BorgheiSoil conservation against flood erosion is very important for optimal use of soil and water resources. Stepped floodway channels are one of the essential structural approaches for soil protection against flood flows in high slope lands at urban areas. In these channels MoreSoil conservation against flood erosion is very important for optimal use of soil and water resources. Stepped floodway channels are one of the essential structural approaches for soil protection against flood flows in high slope lands at urban areas. In these channels flows are characterized by intense turbulence and strong flow aeration, but most studies did not investigate the turbulence characteristics. In this study, highly turbulent airwater flows skimming down a large-size stepped chute were systematically investigated. An experimental study of detailed air-water flow properties measurements were introduced in different types of flow regimes on a stepped channel (θ = 21.8º, h=0.04m, l=0.10m) model to investigate the location and the flow depth at inception point of air entrainment and velocity profiles distributions. Detailed velocity and turbulence intensity measurements in flow direction were performed by use of a phase detection conductivity probe which was designed, developed and calibrated by writers. The results showed that the turbulence characteristics vary in different regions. The study showed further that the turbulence intensity increases rapidly close to the step bottom at the viscous sub layer and maximized for 0.4≤ y/dc ≤ 0.5 at intermediate region then decreases gradually in the upper region. It is hypothesized that the high turbulence levels in the intermediate region were caused by the continuous deformations and modification of the air-water interfacial structure. Manuscript profile -
Open Access Article
30 - Modeling of Possible Dredging Effects of Khozeini Channel on the Water Renewal Time in Gorgan Bay, Southeast of tmj nhe Caspian Sea
saeed sharbaty Sorena NasimiBackground and Objective: Water renewal time, one of the important indicators, is considered for estimation of health status of marine ecosystem. The Khozeini channel has been the second communicative ways of the Gorgan Bay with the Caspian Sea which is blocked by decre MoreBackground and Objective: Water renewal time, one of the important indicators, is considered for estimation of health status of marine ecosystem. The Khozeini channel has been the second communicative ways of the Gorgan Bay with the Caspian Sea which is blocked by decreasing of sea water level and sedimentation in recent years. In this investigation, in order to considering of Khozeini channel possible dredging effects on the Water Renewal Time in the Gorgan Bay, the Hydrodynamic and Advection-Dispersion modules of two-dimensional Mike21 FM model were coupled simultaneously. Method: The modeling on two triangular unstructured meshes and under two different open boundary conditions by including wind stress, water fluctuations in the mouth of Bandartorkaman-Ashoradeh and Khozeini channel, rivers input, evaporation and precipitation during index year were done. To determine the amount of dispersion coefficient in the Gorgan Bay, salinity modeling using Advection-Dispersion module of MIKE 21 FM were developed. Findings: The results two-dimensional salinity modeling showed that the best of dispersion coefficients are 350 m2/s in Gorgan Bay. The results of calculating of the Integral Water Renewal amount under blocking Khozeini channel condition was 54 days and dredging channel condition a width of 170 m was 41 days. Discussion and Conclusion: The best time for Water Renewal Time modeling in Gorgan Bay is the beginning trend of intering annual water level rising in the Caspian Sea. Renewal Time values are depending on hydrodynamic regime and salinity dispersion coefficient in Gorgan Bay. According to the common counterclockwise water circulation pattern in Gorgan Bay, Khozeini channel dredging reduces Integral Renewal Time of up to 13 days. Manuscript profile -
Open Access Article
31 - Water quality and quantity modelling in Bahmanshir River and its channels
Navid Dolatabadi Farahani Hamid Taheri Shahraiyni Mohsen Nasseri Moslem GhasemiBackground and Objective: Bahmanshir River is one of the main water resources in southwest Iran. Salinity intrusion and other pollution sources have influenced the water quality in this river. In this study, quantitative and qualitative modeling of Bahmanshir River and MoreBackground and Objective: Bahmanshir River is one of the main water resources in southwest Iran. Salinity intrusion and other pollution sources have influenced the water quality in this river. In this study, quantitative and qualitative modeling of Bahmanshir River and the water channels of Choebdeh shrimp culture is performed using MIKE11 software. Method: First, manning number of the river is estimated as 0.018 by integrated hydraulic modeling of the river and its water channels. Then, dispersion factor of the river is calculated as (v: velocity) by solving Advection-Dispersion equation. Modeling of water quality parameters, such as dissolved oxygen, nitrate, ammonia, BOD and temperature, is performed using ECOLAB module in the MIKE11 software. The major parameters in the water quality model are determined using sensitivity analysis. These parameters were calibrated and the calibrated model is verified. Findings: The results showed that the water channels behave as complete mix systems. Conversion coefficients of water quality parameters are calculated, and then the average values of salinity, dissolved oxygen, ammonia and nitrate in the channels are calculated as 27000, 3, 3 and 5 ppm, respectively. In addition, these parameters in the river are about 5300, 2.2, 1.2 and 11 ppm, respectively. The correlation coefficient of developed hydraulic model in verification step is 0.95 and the percent of absolute error of verified salinity, dissolved oxygen, temperature, ammonia and nitrate models are 7.9, 12, 1.2, 0.79 and 0.34, respectively. Conclusion: The results demonstrated the capability of MIKE11 for water quality and quantity modeling in tidal rivers. Manuscript profile -
Open Access Article
32 - An investigation on the nonlinear effects of monetary policy in the framework of the two channels of net worth and cash flow of the firms (Applying the panel quantile method)
tanaz salahesh Alireza Kazerooni Hossien AsgharpurThe way monetary policy affects the real economic variables has been always important to the policy makers. In this regard many channels of monetary transmission mechanism have been introduced. The net worth and cash flow channels are the subsets of the balance-sheet ch MoreThe way monetary policy affects the real economic variables has been always important to the policy makers. In this regard many channels of monetary transmission mechanism have been introduced. The net worth and cash flow channels are the subsets of the balance-sheet channel and are newly introduced in the literature of the monetary transmission mechanism. Thus the importance of this research is the investigation of the role of the firms in the monetary transmission mechanism for the first time in Iran. Besides the aim of this article is to explore the indirect and nonlinear effects of the monetary policy through the net worth and the cash flow of the firms in the different quantiles of the received loans. The financial statements of fifty nonfinancial firms in Iran for the period of 2007-2014 and the panel quantile regression are considered. As a conclusion the results indicate that the effect of the monetary policy through the net worth is greater in the upper quantile of the loans. Also the effect of the monetary policy through the cash flow of the firms is stronger for the median quantiles of the loans. Manuscript profile -
Open Access Article
33 - Entropy Generation In an Unsteady MHD Channel Flow With Navier Slip and Asymmetric Convective Cooling
S. Das R. N. Jana A. J. ‎Chamkha‎ -
Open Access Article
34 - Enhancement of Noise Performance in Digital Receivers by Over Sampling the Received Signal
A. Y. Hassan S. M. Shaaban -
Open Access Article
35 - Constructing Hypothetical and Inferential Information in Holy Quran from Approach of a Systematic Linguistics’ Viewpoint
Bahman Gorjian Farangis Abbas ZadehThe existence of three historical, comparative and interdisciplinary features in modern linguistics accelerates its development, change and evolution. Language conveys the informational role and content structure of each word. The role of communication depende MoreThe existence of three historical, comparative and interdisciplinary features in modern linguistics accelerates its development, change and evolution. Language conveys the informational role and content structure of each word. The role of communication dependence Sentences that are identified according to their discourse role and contextual effects are essential for understanding the message. The purpose of the present study is to investigate the informational and thematic construction of several verses of the Holy Quran following the systematic theory of Halliday (1994) which has been done in a descriptive-analytical method using trustable sources (Holy Quran) to study the effect of structural and semantic coherence of Quranic verses. The results indicate that the change in the conceptual and semantic aspect of the structure depends on the information construction of the discourse and its communication elements, which is reinforced by changing the type of possible structure; and these changes take the right shape with linguistic and stylistic tools. Manuscript profile -
Open Access Article
36 - Political Supervision on the Power and Its Practice through the People in the Legal System of Iran
Zahra AmeriAlthough in the political and legal discourse the term of political supervision is used repeatedly, there is little discussion available about the analysis&nbs MoreAlthough in the political and legal discourse the term of political supervision is used repeatedly, there is little discussion available about the analysis of the meaning of this concept and the quality of practicing it through the governmental institutes and also by the people in the political systems. This article emphasizes the position and role of the people in applying this supervision mode in order to control the power, and it tries to provide a clear definition for the political supervision and its features, so that it is clarified that in the current society of Iran, considering the vastness of the society, it is not possible to use the people’s direct supervision for the realization of a favorable control system. Instead, it is inevitable to appeal to modern mechanisms in accordance with the requirements of the current time and also it is necessary to reform the existing mechanisms. Manuscript profile -
Open Access Article
37 - A Novel Iterative Channel Estimation Technique for Multipath Fading Channels in MIMO-OFDM Using Auxiliary Pilots
Seyed Hamidreza Mirsalari Afrooz Haghbin Farbod RazzaziThe paper proposes a novel iterative channel estimation technique for multipath fading channels in Multiple Input Multiple Output Orthogonal Frequency Division Multiplexing(MIMO-OFDM)systems with Gaussian noise and impulse noise. MIMO-OFDM systems can be beneficial if t MoreThe paper proposes a novel iterative channel estimation technique for multipath fading channels in Multiple Input Multiple Output Orthogonal Frequency Division Multiplexing(MIMO-OFDM)systems with Gaussian noise and impulse noise. MIMO-OFDM systems can be beneficial if the estimated channel quality is assured at the receiver. The paper also proposes an auxiliary pilot for channel re-estimation based on some reliably retrieved data symbols. In subsequent iterations, adding new auxiliary pilots improves channel estimation accuracy. The correlation between the data channel coefficients and the original pilots is used to select reliable data. Since iterative channel estimation is time-consuming, using a channel estimator with a low processing time and computational complexity is imperative. An easy-to-implement baseline least squares(LS)method is used in the proposed estimator. According to the simulation results, the proposed iterative channel estimation technique improves MIMO-OFDM performance by increasing the number of pilots in subsequent iterations compared to the conventional channel estimation techniques. Manuscript profile -
Open Access Article
38 - The effect of channel coding on the efficiency of an OFDM system
Mojtaba Ghasemi Amineh Aliasghar HaghighiMulti-path propagation is one of the most important limiting factors for sending high bit rate information. It is possible to send high bit rates at frequencies in the GHz range, which is the biggest problem in this multi-channel propagation frequency band. OFDM techniq MoreMulti-path propagation is one of the most important limiting factors for sending high bit rate information. It is possible to send high bit rates at frequencies in the GHz range, which is the biggest problem in this multi-channel propagation frequency band. OFDM technique is very resistant and efficient in dealing with the adverse effects of multipath propagation by dividing the sent symbols between several sub-carriers and sending them simultaneously. With the increasing growth of high-capacity systems, the applications of this technique are increasing day by day. The OFDM system along with CDMA is proposed for next-generation mobile networks. Channel coding plays a very important role in improving OFDM efficiency. Due to the special structure of OFDM, the use of channel coding in it has special features compared to single-carrier systems that increase the efficiency of the system. Hence, this system is also called coded OFDM or COFDM. In this paper, while studying the OFDM technique, the effect of the channel coding range on the efficiency of the OFDM system is investigated. Manuscript profile -
Open Access Article
39 - Effect of Injection Velocity on Heat Transfer of Water/Alumina Nano Fluid in A Rectangular Microchannel
Afshin Ahmadi Nadooshan Afshin Shiriny Morteza Bayareh -
Open Access Article
40 - Investigating the Effects of Expansion Equal Channel Angular Extrusion (Exp-ECAE) on Dynamic Behavior of AA7075 Aluminum Alloy
J. Shahbazi Karami S. Sepahi-Boroujeni Mohsen Khodsetan -
Open Access Article
41 - Optimum Design and Construction of Hydraulic Sections of Parabolic Water Transmitting Channels using the Harris Hawks Optimization Algorithm
Mehrzad torkzadeh Hamed Reza Zarif Sanayei reza kamgar -
Open Access Article
42 - Numerical Analysis of Circular Pre-notched U-Channel Section Distortions in Cold Roll-Forming Process
S. Sattar S. Mazdak E. Sharifi -
Open Access Article
43 - Ultrasonic Assisted Equal Channel Angular Extrusion Process (UAECAE)
Hamed Razavi Yaghoub Tadi Beni Mohammad Baharvand -
Open Access Article
44 - Optimal Process Parameters in ECMAP of Al−3% Mg Alloy Strips
Peyman Mashhadi Keshtiban -
Open Access Article
45 - Numerical Study on Forced Convection of Slip Flow in A Microchannel with Smooth and Sinusoidal Walls
Afshin Ahmadi Nadooshan DAriush Bahrami Akram Jahanbakhshi -
Open Access Article
46 - Heat Transfer of Wavy Microchannel Heat Sink with Microtube and Ag/Water-Ethylene Glycol Hybrid Nanofluid
Akram Jahanbakhshi Afshin Ahmadi Nadooshan morteza Bayreh -
Open Access Article
47 - Investigation of Effective Parameters for Improvement of OSNR and Increasing of the Channel Capacity in Optical Communication Systems
Majid Malekian Hossein Emami Mohsen Ashourian -
Open Access Article
48 - Creating a graphical user interface (GUI) to automatically calculate the land surface temperature and use the results in evaluating temperature changes in land uses in Ardabil city
Hossein Fekrat Sayyad Asghari Saraskanrood Seyed Kazem AlavipanahBackground and Objective Land surface temperature is a vital indicator for studying environmental changes, hydrological conditions and the energy balance of the earth, which can also be used to monitor the temperature changes of cities. The lack of meteorological statio MoreBackground and Objective Land surface temperature is a vital indicator for studying environmental changes, hydrological conditions and the energy balance of the earth, which can also be used to monitor the temperature changes of cities. The lack of meteorological stations in most parts of the country, including the study area, has created information limitations in the field of surface temperature data. There are also a large number of non-remote sensing users who need LST maps, and most of them are not familiar enough with LST computing software and inevitably have to spend a lot of time mapping to prepare their maps. This process can be time-consuming even for remote sensing professionals if the number of images is high. The use of valid data for validation that has the least time difference with the satellite passes time is very important in estimating the accuracy of the results. By reviewing internal research similar to the one under study, most internal studies used only meteorological station data to validate the results, the data recording time at these stations is different from the satellite passes time. In this study, due to the large area of the study area and the insufficient number of meteorological stations, in addition to the surface temperature data measured in synoptic stations, the land surface temperature in two ground stations was recorded simultaneously with the satellite. Creating a graphical user interface (GUI) to automatically calculate the surface temperature of Ardabil city with two single-channel and RTE algorithms and use the results to evaluate the temperature changes of land usesMaterials and Methods In this study, in order to automatically calculate the land surface temperature of Ardabil city from three types of data: Landsat 5 and 8 satellite images, land surface temperature data recorded at two meteorological stations in the study area and also due to an insufficient number of stations Meteorological data land surface temperature data measured with digital thermometers are also used as the satellite passes. After preparing thermal and multispectral images, first MODTRAN web computing software was used to model the atmospheric transferability and atmospheric coefficients were extracted. Then, to create graphical user interfaces and automatic calculation of LST, land surface temperature with two algorithms single-channel and RTE method with Landsat 5 and Landsat 8 satellite images for two dates: 31/07/2000 and 21/08/2019 in MATLAB software were coded and using these codes, graphical user interfaces were created for each algorithm and finally, an automatic land surface temperature calculator application was produced. Also, the land use map of Ardabil city for both mentioned dates was classified and extracted using a random forest algorithm in the Google Earth engine system environment with 7 classes. This algorithm has a much better performance compared to traditional methods such as maximum likelihood due to its hierarchical structure in selecting each pixel to the appropriate class. To validate surface temperature maps from two types of surface temperature data recorded in two meteorological stations and surface temperature recorded by a digital thermometer that simultaneously passes the satellite in two points of the homogeneous non-urban environment with agricultural use (alfalfa) and Bayer that product It was harvested, used. To evaluate the accuracy of land use maps, using Google Earth, which has a better spatial resolution than the image used, 248 ground control points were obtained from pure pixels of different land uses and used in the validation process. Also, statistical parameters such as error matrix, overall accuracy and kappa coefficient were applied to the output of both land use maps.Results and Discussion Using the codes written in MATLAB software, graphical user interfaces (GUI) were created and then the automatic LST calculator application was produced. The output of the application was surface temperature maps with single channel algorithms and radiation transfer equation (RTE) for 31/07/2000 using thermal image (band 6) of Landsat 5 satellite TM and 21/08 / 2019 was created by the 10 TIRS sensor band of Landsat 8 satellite. After comparing the output maps with the meteorological station and ground station data, the results showed that the single-channel method had the lowest temperature deviations compared to the stations in both years. After preparing LST maps and selecting the optimal algorithm (single channel), land use maps of Ardabil city were prepared using a random forest algorithm in the GEE platform. Statistical evaluations of the classification results showed that for 2000, the highest pixel interference was related to the middle and poor rangeland class, which has a 16-pixel displacement with residential and rainfed agricultural classes. Due to the improved spatial resolution of the Landsat 8 satellite compared to the Landsat 5, followed by better class separation, this pixel displacement in the 2019 user map shows a smaller value. The most common error was related to the aquaculture class, which had a displacement of 10 pixels with rich rangeland and rainfed agriculture classes. Finally, using the LST map and land use map, the temperature changes of the land uses over a period of 19 years were evaluated. By entering the input images and atmospheric parameters in the application, the land surface temperature was calculated with two one-channel algorithms and the RTE method. Evaluation of output maps with meteorological and terrestrial data showed that the single-channel algorithm with a difference of +2.5 and -2 with stations 1 and 2 for the year 2000 and with a temperature difference of +1.3, +0.9, -1 and -0.9 with stations 1, 2, 3 and 4 in 2019, respectively, had higher accuracy than the RTE method. Also, the results of validation of land use maps showed an overall accuracy of 0.95 and a kappa coefficient of 0.94 for 2000 and overall accuracy of 0.96 and a kappa coefficient of 0.95 for 2019.Conclusion Assessing the relationship between land surface temperature and land use maps showed that despite the significant physical growth of the urban sector over a period of 19 years, except for residential areas, all land uses in 2019 compared to 2000 with an increase in average surface temperature. It seems that factors such as the expansion of agricultural lands with irrigated cultivation around the urban area up to a radius of 10 km and the entanglement of these farms with the urban sector have a great impact on the temperature adjustment of the urban sector. In 2000, these lands were mainly under cultivation of rain-fed crops, and by solving the water problem (digging deep wells and water transfer projects), they became orchards and irrigated farms such as potatoes. Due to the high water requirement, these products also have high greenery, and this factor has increased the rate of evapotranspiration, followed by cooling of the cultivation area and the urban sector. Among other classes, in both years of water use, the lowest and the use of barren lands had the highest average surface temperature. The generated application can be run on any operating system that supports the exe format, and the user by specifying atmospheric parameters can automatically estimate the LST. This application can also be used in various sectors such as agricultural systems, and climate and water resources management. Manuscript profile -
Open Access Article
49 - A Comparative Investigation of the Backchanneling Strategy in English Language Textbooks for Iranian School Students
Mahboobeh Chahooshi Reza Rezvani -
Open Access Article
50 - Identifying effective communication channels disseminating messages based in social networks
Mehrdad Jalali Reihane Righi Mohammad Hossein MoattarSocial networks are social structures between individuals and their relationship which play a significant role in information spread, nowadays. An appropriate solution for being informed about the process of information and news spread in these networks is the ide MoreSocial networks are social structures between individuals and their relationship which play a significant role in information spread, nowadays. An appropriate solution for being informed about the process of information and news spread in these networks is the identification of the critical edges between members of the society. In a lot of articles identifying the edge will be static that such important challenges in this field as well as the interactions between users is not considered. In this paper, a new method is introduced for the identification of effective communication channels that has the ability to comply with the various social networks and real-world structures. This method identifies the effective communication channels based on the data volume transferred between members of the society dynamically, the centrality of interstitial of edges and the features of the two nodes. The model presented in this paper can maintain the specificity of data. The results of the evaluation indicate that this method has desired results compared to similar methods. Manuscript profile -
Open Access Article
51 - Bank Lending Channel Reaction to Financial Suppression Policies
Fatemeh Johari Gholamali Haji Nader Mehregan Ahmad Sarlak -
Open Access Article
52 - The Analysis of Intensive Distribution Approach
Ali Hosseinpour -
Open Access Article
53 - برآورد میزان نشت آب در کانالهای آبیاری دشت کازرون با فرمولهای تجربی و مقایسه آنها با روش استغراقی
محسن مؤمن زاده محمد علی شاهرخ نیادر دوران گذشته، آب بهعنوان یکی از عوامل مهم در به وجود آمدن گروههای اجتماعی و توسعه جوامع بشری بوده است. امروزه نیز استفاده از آب بهعنوان ابزاری سازنده در فراهم آوردن تعادل اقتصادی و سیاسی مورد تأکید است. با توجه به محدود بودن منابع آب و اراضی قابل بهرهبرداری در جهان، ب Moreدر دوران گذشته، آب بهعنوان یکی از عوامل مهم در به وجود آمدن گروههای اجتماعی و توسعه جوامع بشری بوده است. امروزه نیز استفاده از آب بهعنوان ابزاری سازنده در فراهم آوردن تعادل اقتصادی و سیاسی مورد تأکید است. با توجه به محدود بودن منابع آب و اراضی قابل بهرهبرداری در جهان، برای برآورده کردن احتیاجات آینده بشر و جلوگیری از عواقب حاصل از کمبود آب، یکی از بهترین روشها، بهرهبرداری بهینه از منابع آبوخاک است که با افزایش روزافزون جمعیت دنیا و محدود بودن منابع آب و غذا سبب شده است که بسیاری از صاحبنظران، دنبال راهکاری برای استفاده بهینه از همین آب محدود گرداند یکی از این راهکارهای موجود، ارزیابی اثر پوشش در کانالهای آبیاری برای کاهش نشت است نتایج این تحقیق نشان داد که تفاوت میزان نشت آب به روش استغراقی و فرمولهای تجربی مورس ورث ینی دومیا، اینگهام، داویس و ویلسون در کانال خاکی عرب در سطح پنج درصد معنیدارنیست. همچنین روشهای تجربی موریتس و پنجاب هند به ترتیب در سطح احتمال پنج درصد معنیدار و در کانالهای شاه منظر و خواجه باقری بررسیهای آماری نشان داد که این تفاوت با فرمولهای تجربی مورس ورث ینی دومیا، داویس و ویلسون، موریتس و اینگهام درسطح احتمال پنج درصد و با روش تجربی پنجاب هند در سطح احتمال یک درصد معنیدار است. همچنین نتایج مقایسه این روش با فرمولهای تجربی نشان داد که بیشترین مقدار نشت متعلق به فرمول داویس و ویلسون در کانال خواجه باقری و کمترین مقدار نشت متعلق به فرمول پنجاب هند در کانال عرب می باشد. Manuscript profile -
Open Access Article
54 - بررسی تاثیر تغییرات پارامترهای شیب، دبی و غلظت، بر شدت اختلاط جریان غلیظ در مقاطع همگرا
ایوب مرادی مهدی قمشی بهنام سروری نژادسدسازی از هزاران سال قبل از میلاد، فنی شناخته شده بود و انسان همواره با کمک آن سعی در حفظ و بهره­برداری از منابع آبهای سطحی داشته است.ولی معضل رسوب گذاری همواره به عنوان مهم ترین عامل، در کوتاه کردن عمر مفید سدها مطرح بوده است و سدهای مخزنی زیادی بدلیل پرشدن از رسو Moreسدسازی از هزاران سال قبل از میلاد، فنی شناخته شده بود و انسان همواره با کمک آن سعی در حفظ و بهره­برداری از منابع آبهای سطحی داشته است.ولی معضل رسوب گذاری همواره به عنوان مهم ترین عامل، در کوتاه کردن عمر مفید سدها مطرح بوده است و سدهای مخزنی زیادی بدلیل پرشدن از رسوب، متروکه شده اند. یکی از مهمترین پدیده­ها در رسوبگذاری مخازن، جریانهای غلیظ می­باشند که باید نقش این جریانها در فرایند رسوبگذاری مخازن، شناسایی شده و با شناخت پارامترهای مختلف این جریان، نسبت به مدیریت رسوب مخازن، اقدامات موثر را انجام داد. لذا در این تحقیق، تاثیر تغییرات پارامترهای دبی، شیب و غلظت، روی شدت اختلاط جریان غلیظ و آب ساکن در مقاطع همگرا، در یک فلوم با شیب کف قابل تغییر، عرض 5/72 سانتی متر، عمق 60 سانتی متر و طول 6 متر در سه زاویه همگرایی 8 ،16 و 25 درجه در آزمایشگاه مدل­های هیدرولیکی دانشگاه شهید چمران اهواز پرداخته شده است. نتایج نشان می­دهند با افزایش پارامترهای دبی و شیب، شدت اختلاط جریان غلیظ، افزایش یافته و با افزایش غلظت، از مقدار آن کاسته می­شود و در نهایت برای شدت اختلاط در هر یک از زوایای همگرا، رابطه­ای ارائه شده است. Manuscript profile -
Open Access Article
55 - بررسی شیب خط نشت در خاکریز کانالهای آبیاری شبکه آبیاری و زهکشی دشت میاناب با استفاده از مدل SEEP/W
فرخ فلاحت حسین فتحیان بهروز دهانزادهیکی از مشکلات شبکههای آبیاری موجود پدیده نشت و تراوش میباشد. مسئله تراوش آب و کنترل آن در کانالهای آبیاری یکی از مهمترین مسائل در طراحی، ساخت، نگهداری و بهرهبرداری از اینگونه کانالهاست. در این تحقیق، میزان و خط آزاد نشت از کانال آبیاری و زهکشی میاناب واقع در حوضه کارون Moreیکی از مشکلات شبکههای آبیاری موجود پدیده نشت و تراوش میباشد. مسئله تراوش آب و کنترل آن در کانالهای آبیاری یکی از مهمترین مسائل در طراحی، ساخت، نگهداری و بهرهبرداری از اینگونه کانالهاست. در این تحقیق، میزان و خط آزاد نشت از کانال آبیاری و زهکشی میاناب واقع در حوضه کارون با استفاده از مدل ریاضی دو بعدی Seep/w شبیهسازی شد. نتایج نشان میدهد که زمانی که عمق جریان در کانال اصلی برابر و یا بیشتر از 69 / 1 متر باشد، خط آزاد نشت دیواره پائین دست خاکریز را قطع میکند و احتمال ایجاد پدیده Piping وجود دارد. با افزایش عمق جریان آب در کانال اصلی، شیب خط نشت افزایش مییابد. ضریب هدایت هیدرولیکی تاثیری بر خط آزاد نشت ندارد و تنها عاملی که روی خط آزاد نشت تأثیر میگذارد، رقوم سطح جریان آب در کانال اصلی میباشد. Manuscript profile -
Open Access Article
56 - Identifying and investigating the cause-effect relationships of the criteria affecting the sales price in Omni-Chanel distribution network using the DEMETAL
Mehrdad Bahremand Roya Soltani Rasoul KarimiOmni-channel is a cross-channel business model that companies use to increase and improve customer relationships. Companies that use Omni-channel believe that the customer's value is the ability to continuously contact the company in multiple ways at the same time (mult MoreOmni-channel is a cross-channel business model that companies use to increase and improve customer relationships. Companies that use Omni-channel believe that the customer's value is the ability to continuously contact the company in multiple ways at the same time (multiple communication channels at the same time and with the same information). In Omni-Channel, all customer behaviors are fully predicted and supported in all communication channels and contact points, so that if during the purchase process, the customer changes direction from one communication channel to another, there will be no impact or deficiency in the result of his purchase. In this research, we are investigating the cause-effect relationship of the criteria affecting the sales price in the Omni-Chanel distribution network using the DEMATEL method. Therefore, by using DEMETAL's method, the criteria affecting the causal relationships are carried out so that, in addition to the long-term planning process, it has the ability to deal with future uncertainties. The results showed that the most important effective factor in the pricing process in the safe distribution of the channel can be pointed to the product inventory factor. Also, the distribution capacity factor has a significant impact on the pricing in the Omni-Channel distribution system. Manuscript profile -
Open Access Article
57 - Identifying and examining the cause-effect relationships of the effective criteria of procurement time, cost and customer satisfaction in Omni-Chanel distribution network using DEMATEL
Seyed Ghiasuddin Taheri Mehrzad Navabakhsh Hamid Tohidi Davood MohammaditabarOmni-channel is a cross-channel business model that companies use to increase and improve customer relationships. Companies that use Omni-channel believe that the customer's value is the ability to continuously contact the company through multiple ways at the same MoreOmni-channel is a cross-channel business model that companies use to increase and improve customer relationships. Companies that use Omni-channel believe that the customer's value is the ability to continuously contact the company through multiple ways at the same time. In Omni-channel, all customer behaviors are fully predicted and supported in all communication channels and contact points, so that if during the purchase process, the customer changes direction from one communication channel to another, there will be no impact or deficiency in the result of his purchase. In this research, we seek to investigate the cause-effect relationships of the criteria affecting procurement time, cost, and customer satisfaction in Omni-channel distribution network using DEMATEL method. Therefore, by using DEMATEL’s method, the criteria affecting the causal relationships are carried out so that, in addition to the long-term planning process, it has the ability to deal with future uncertainties. According to the calculations and analysis, it was found that the criteria of product inventory, responsiveness, responsibility, communication with the customer, identification and selection of distributors, information technology capability, customer expectations, in the process of improving the procurement time, cost and customer satisfaction in Omni-channel distribution network as handicap factors can play a very effective role in attracting customers and increasing market share in competitive markets. The results showed that among the most important effective factors in improving the procurement time, cost and customer satisfaction in Omni-channel distribution network, the factors of customer return rate and government laws can be mentioned. Manuscript profile -
Open Access Article
58 - Investigating the mechanism of monetary policy transmission in the short term with the approach of Islamic wisdom, relying on a structural vector auto regression model in Iran
Mahshid Tabatabaie zavareh beitollah akbari moghadam Farhad GhaffariIn this research, attempts have been made to identify the characteristics and distinctive features of Islamic banking compared to conventional banking by studying the theoretical framework of Islamic banking literature. Subsequently, by focusing on each characteristic, MoreIn this research, attempts have been made to identify the characteristics and distinctive features of Islamic banking compared to conventional banking by studying the theoretical framework of Islamic banking literature. Subsequently, by focusing on each characteristic, their relevant indicators were designed and introduced.Purpose: The purpose of this article is to investigate the effects of monetary policy through monetary transmission channels (interest channel, exchange rate channel, credit channel and expectations channel) in the short term during the period of 1386Q1 - 1396Q4.Methodology: Using the structural vector autoregression (SVAR) model, the effects of monetary policy were investigated through channels.Findings: The experimental results obtained from the estimation of the relationships between the variables using the SVAR approach based on statistical data show that in the short term the exchange rate channel is the most effective one in the transmission of monetary policy in a way that the expectations variable has the most effect on this channel. After the exchange rate channel, the expectations channel and the credits and interest rate channel have the most impact in the short term, respectively.Conclusion: By examining the relative importance of monetary transfer channels, we can point out the principle that with the passage of time, the effectiveness of the channels will change. Accordingly, with price shocks, the expectations channel has the most impact in the short term. Manuscript profile -
Open Access Article
59 - Sedimentology and determination of erodibility indices of marls of the upper red formation in Eyvanakey area
Sedighe Mirzazadeh Majid Karimpor Reihan Mohammad Reza EspahbodThe studied region with 3750 km² is located in 65 kilometers in south-east of Tehran and 140 kilometers in westof Semnan. In this study, physical and chemical characteristics and engineering marl which are sensitive toerosion with various forms of Surface, Rill, Gu MoreThe studied region with 3750 km² is located in 65 kilometers in south-east of Tehran and 140 kilometers in westof Semnan. In this study, physical and chemical characteristics and engineering marl which are sensitive toerosion with various forms of Surface, Rill, Gully, and Channel Erosion have been investigated. It was taken 14samples of marl surface with mostly Gully Erosion. The results of chemical analysis showed that the soil of thisregion is salin,alkali soils, from the viewpoint of engineering, soil samples within the SM, SW, SP, and SCM areconsidered. The granulometrie of soils showed that they are loamy to fine loamy. So they are susceptible toerosion. According to analysis to detect physical properties, chemical and mechanical engineering marl markedbetween amounts of salt, gypsum and lime are significant differences and these three factors can be an importantfactor in distinguishing erosion problems considered. Manuscript profile -
Open Access Article
60 - Effect of Obstacles Geometry on Temperature Variations of a Flowing Fluid in an Open Channel – Experimental Investigation and Numerical Modelling
نادر رهبر Mahdi Hamzei Siavash Zabeti-JahromiIn this paper the effect of placing various obstacles on heat transfer between the air and water in an open channel was investigated. For this purpose, seven different obstacles were placed into the water while incorporating underwater aeration and forced air movement o MoreIn this paper the effect of placing various obstacles on heat transfer between the air and water in an open channel was investigated. For this purpose, seven different obstacles were placed into the water while incorporating underwater aeration and forced air movement on the water, to measure input and output water temperatures at eleven different flow rates. The results indicated that placing an obstacle in the channel is associated with an increase in heat transfer from the water. Furthermore, the highest rate of heat transfer was achieved when there was a forced convection of air on water. Under natural convection, the highest rate of heat transfer was observed for the turbulent flow up to middle of the channel, while under forced convection, it was observed in forced air movement on water surface. Also in this research, open channel flow was numerically simulated in Fluent software via RSM model. A Comparison between the numerical results and experimental data may indicate the ability of Fluent software in accurate flow simulation in the open channel. Manuscript profile -
Open Access Article
61 - Experimental analysis of direct evaporative cooling in a rotating cylindrical channel
Ali Heydari وحید صحافیPaying attention to using systems with higher efficiency in buildings is increasingly necessary due to high energy consumption in buildings and lack of energy sources. On the other hand, air conditioning systems and cooling equipment accounted for the largest percentage MorePaying attention to using systems with higher efficiency in buildings is increasingly necessary due to high energy consumption in buildings and lack of energy sources. On the other hand, air conditioning systems and cooling equipment accounted for the largest percentage of building energy consumption. In this study some changes in direct evaporative cooling has been performed to reduce energy and water consumptions. A rotary cylindrical channel is assumed instead of the fixed evaporating chamber. Thus the pump is eliminated and the heat transfer coefficient is enhanced due to rotational water flow. The results are evaluated by changing input parameters such as different input speeds and different rotational speeds. The energy analysis is done and the effects of input parameters are investigated on cooling capacity, dew point effective, coefficient of performance and exergy loss. Manuscript profile -
Open Access Article
62 - Numerical Study of Magneto Hydrodynamic effect on Ferrofluid flow in channel
بهنام وثوق Hadi Kargar SharifabadIn this numerical case study, thermal and hydrodynamic behavior of Ferro fluid (water + %2 Fe2O3) in two dimension channel in present of magnetic field has been study by single phase model and finite volume method. Magneto hydrodynamic effect and then impact of adding m MoreIn this numerical case study, thermal and hydrodynamic behavior of Ferro fluid (water + %2 Fe2O3) in two dimension channel in present of magnetic field has been study by single phase model and finite volume method. Magneto hydrodynamic effect and then impact of adding magnetic Nano and effect of non-uniform magnetic field on fluid has been study. channel’s wall are on constant temperature of 290 kelvin and main fluid inter the channel in 340 K. four magnetic dipole place along channel and the placed the fluid under magnetic field strength of 0.1,0.15,0.2,0.25 .impact of these magnetic field on velocity, pressure, heat transfer rate and Nusselt number studied and it showed very little impact heat transfer enhancement under magnetic field and can be negligible. Manuscript profile -
Open Access Article
63 - Numerical Investigation and Optimization of Die Parameters in Parallel Tubular Channel Angular Pressing Process
Amin Armanian Hassan khademi zadehIn this day and age, the ultra-fine materials due to their unique properties have found a special place in various industries. By reducing the grain size, the share of atoms at the grain boundaries has been increased and the increase of grain boundaries prevents the mov MoreIn this day and age, the ultra-fine materials due to their unique properties have found a special place in various industries. By reducing the grain size, the share of atoms at the grain boundaries has been increased and the increase of grain boundaries prevents the movement of dislocations and increases the strength. One method of producing ultra-fine materials is imposing severe plastic deformation. In order to apply Plastic deformation, disparate methods can be used that parallel angled channels are used in this study. ABAQUS finite element software is used to analyze the process numerically and to optimize the results, neural network and genetic algorithm methods have been used. In this study, the effects of die parameters including channel angle, tube length, increase of diameter difference and the friction coefficient are checked out. The results depicted that the coefficient of friction and pipe length which are tested, played a pivotal role in the homogenization of strain distribution separately; that by increasing the supposed friction coefficient and reducing the length of the tube, the strain distribution will be homogeneous. The difference between the increase in the diameter of pipe and the angle of die’s channel will have little impact on the improved uniformity of strain distribution. On the other hand, increasing the coefficient of friction, pipe length and diameter of pipe ends with an increase in the force of process while increasing the angle of die’s channel culminated in reducing the formation force. Additionally, considering the results obtained from optimization of parameters, Manuscript profile -
Open Access Article
64 - Investigation on effect of die geometric parameters on equal channel angular extrusion of bulk nanostructured magnesium alloy AZ31
Mohammad Farzanfar Ali Heidari Mohsen Loh-mousaviIn this study, the equal channel angular extrusion (ECAE) of magnesium alloy AZ31 was simulated using 3D FEM by Abaqus software. The results show an appropriate agreement between the research results and the analytical relationships, experimental and numerical results o MoreIn this study, the equal channel angular extrusion (ECAE) of magnesium alloy AZ31 was simulated using 3D FEM by Abaqus software. The results show an appropriate agreement between the research results and the analytical relationships, experimental and numerical results of other researchers. Also, the forming force, strain, nano quality and workpiece behavior during the process were investigated. The results indicate that in the part of the workpiece that is at the channel angle side, better microstructure is formed. Also, the effect of die geometric parameters showed that the channel angle has a great impact on the effective plastic strain and forming force. By increasing the channel angle, the effective plastic strain and the forming force decreases. But the corner angle of the die does not have much effect. Manuscript profile -
Open Access Article
65 - Dela Landslide Occurrence and Negin Ancient Bridge Creation: An Example of Bidirectional Effect of the Environment and Human in Shimbar Highlands
Masoud Sadeghi Rad Zahra Javadinia Siamak Sharafi Ayyoub SoltaniHosteling and bustling of human life in its environment has always been coincided with many challenges and opportunities which acted like a basis for human life. Meanwhile, human has never been the looser; human’s intelligence and his ability to think sometimes co MoreHosteling and bustling of human life in its environment has always been coincided with many challenges and opportunities which acted like a basis for human life. Meanwhile, human has never been the looser; human’s intelligence and his ability to think sometimes coveted the nature and sometimes compromised with it. Central Zagros with high and low mountainous latitudes has always been a great example of the fight and the compromise between human and environment. The occurrence of Dela landslide and also creation of Negin ancient canal is an example of this infraction which has occurred in high latitudes of Shimbar located in north Khuzestan. The occurrence of Dela landslide in Shimbar river water networking system, and its consequence which is creation of Shimbar dam lake, has caused three staged environmental changes in that area. As a result of these changes, some problems for human living in the area have appeared which mostly include blocking the only communicative path in the area. Blocking this path has caused the people to think more to find a way to solve the problem. The solution led to creating the Negin archaeological canal which caused a reduction in the water level (the third stage of changes) as well as opening the communicative path. These events which in one hand represent the concurrence of human against the environment (occurrence of Dela landslide and creation of Shimbar lake); and on the other hand represent the concurrence of the environment against human (creation of the canal and reopening the communicative path) proves the bidirectional interaction between human and environment in Zagros area. Manuscript profile -
Open Access Article
66 - Design of a new narrow band channel drop filter based on photonic crystal ring resonator
aram khoshtinat Mohammad ghiamy -
Open Access Article
67 - A Novel Structure for Optical Channel Drop Filter using Two-Dimensional Photonic Crystals with Square Lattice
aram khoshtinat Mohammad Ghiamy -
Open Access Article
68 - Designing an adjustable optical multi-channel filter in a triple photonic structure based on magnetized materials and uniaxial metamaterials
Behnam Kazempour -
Open Access Article
69 - The New Method for Optical Channel Drop Filter with High Quality
ابولفضل اسدپور حامد علیپور بنایی علیرضا عندلیب -
Open Access Article
70 - Comparison of Government Media from the Perspective of Political and Cultural News Coverage (Case study: Iran News Network and Newspaper)
Majid Omidi shaharki Feridon Akbarzadeh Bahram Yosefi Lana AbdolkhaniDespite development in social networks, the traditional news media have special functions and the government uses them to promote its goals. In the research, the media approach of the News Channel in the Islamic Republic of Iran Broadcasting (IRIB) and newspapers aims t MoreDespite development in social networks, the traditional news media have special functions and the government uses them to promote its goals. In the research, the media approach of the News Channel in the Islamic Republic of Iran Broadcasting (IRIB) and newspapers aims to reflect cultural and political news. The study was conducted from 2013 to the end of 2019. The emphasis of the study was based on the fact that IRIB and the Iran newspaper get a great influence from government policies in different periods. The results showed that there was a difference between Iran newspaper's coverage of political issues and other issues. Also, there was a difference in the number of cultural news on the News Channel compared to other news. There was no difference between the Iran newspaper and the News Channel of IRIB in terms of attention to the main case and analysis of news events. Manuscript profile -
Open Access Article
71 - Interference-Aware and Cluster Based Multicast Routing in Multi-Radio Multi-Channel Wireless Mesh Networks
Rasoul Behravesh Mohsen Jahanshahi -
Open Access Article
72 - A Novel Multicast Tree Construction Algorithm for Multi-Radio Multi-Channel Wireless Mesh Networks
Rasoul Behravesh Mohsen Jahanshahi -
Open Access Article
73 - A Survey on Multicast Routing Approaches in Wireless Mesh Networks
Shiva Zendehdelan Reza Ravanmehr Babak Vaziri -
Open Access Article
74 - Analysis of Lattice Boltzmann Method for Slip Flow in Trapezoidal Microchannels
Arman Maroufi Cyrus Aghanajafi Jamasb Pirkandi -
Open Access Article
75 - Comparative study of female representation in the commercials of channel 3 and Gem TV
Negin Hatami Mehran SamadiPresent research is a comparative study of females broadcast quality on Iranian TV (channel3) and on a satellite Gem TV. To reach our goal we have benefited from two methods of content analysis and reverse questionnaire. statistical population of this study consists of MorePresent research is a comparative study of females broadcast quality on Iranian TV (channel3) and on a satellite Gem TV. To reach our goal we have benefited from two methods of content analysis and reverse questionnaire. statistical population of this study consists of 140 broadcasted commercial ads on channel 3 and on Gem TV at 6pm and 11pm everyday over the months of January, February and March 2012 and April, may, June 2013.The figures obtained showed ultimately that both channels additional to displaying female routine functions, have been attempted to make changes in the way of their reflection and the channels have not utilized the females only as a factor for attracting audience. Manuscript profile -
Open Access Article
76 - Simulation of voltage-gated ion channels behavior during infrared neural inhibition (INI)
Mohamamd Ali Ansari Hassan Tajarehnejad Abdollahi -
Open Access Article
77 - Effect of the Satellite Channel Programs on Value System of the Students in Islamic Azad University( Neka Branch)
Mohammad Hajizad Mona Mahdizadeh حسین باقری -
Open Access Article
78 - Plastic deformation analysis in parallel tubular channel angular pressing (PTCAP)
Ghader Faraji Mahmoud Mousavi Mashhadia -
Open Access Article
79 - A new approach for achieving excellent strain homogeneity in tubular channel angular pressing (TCAP) process
Ghader Faraji F. Reshadi M. Baniasadia -
Open Access Article
80 - 3D finite element study of temperature variations during equal channel angular pressing
Mehdi Shaban Ghazani A. vajd B. Mosadeg -
Open Access Article
81 - Optimization of ECMAP parameters in production of ultra-fine grained Al1050 strips using Grey relational analysis
Peyman Keshtiban Mohammad Zadshakouyan Ghader Faraji -
Open Access Article
82 - Modeling and production of high strength Al strips by equal channel multi angular pressing method
Peyman Keshtiban Mohammad Zadshakouyan Ghader Faraji -
Open Access Article
83 - Performance Optimization and Sensitivity Analysis of Junctionless FinFET with Asymmetric Doping Profile
Zahra Ahangari Ehsan Asadi Seied Ali Hosseini -
Open Access Article
84 - Investigation of Effective Parameters on the Surface Temperature Gradient under Equal Channel Angular Pressing Process of AA2017
Farshid Ahmadi Hadi Mansouri Elyas Sarami Foroushani -
Open Access Article
85 - Experimental Investigation of Thermal Conductivity of Aluminum Alloy 3003 Produced by Equal Channel Angular Rolling Process
Mohammad Honarpisheh Mohammad Reza Aghili Mahdi Kotobi -
Open Access Article
86 - Desiging, Part Selecting and Fabrication Procedure of the Vaccum Section of a Leaf Vacuum Shredder Machine
Alireza Shirneshan Mohammad Ali Ghazavi Mehrdad Poursina -
Open Access Article
87 - Deformation of Al Alloy during Integrated Extrusion and ECAP: A Simulation Research
Ankit Sahai Shanti S. Sharma Suren N. Dwivedi -
Open Access Article
88 - Evolution of Texture and Grain Size during Equal Channel Angular Extrusion of Pure Copper and 6012 Aluminum
Mohammad Hossein Shahsavari Farshid Ahmadi -
Open Access Article
89 - Radio Band Utilization Improvement in Wireless Mesh Networks for Multicast Routing
Zeinab Asgari Avid Avokh Mahmood Daneshvar FarzaneganThis paper addresses the cross-layer design for multicast routing in Multi-Radio Multi-Channel Wireless Mesh Networks (MRMC-WMNs) with directional antennas. WMNs have a limited capacity because of existence of interference between the wireless links. This issue becomes MoreThis paper addresses the cross-layer design for multicast routing in Multi-Radio Multi-Channel Wireless Mesh Networks (MRMC-WMNs) with directional antennas. WMNs have a limited capacity because of existence of interference between the wireless links. This issue becomes more crucial in the multicast communications. Directional antennas can focus the transmission power to the limited sector. Thus, equipping the wireless nodes with these antennas leads to degrade interference. This paper proposes two cross-layer algorithms named “Directional Multicast Tree Construction (DMTC)” and the “Directional Interference-aware Multicast Tree Construction (DIMTC)” to solve the aforementioned problems. In the first algorithm, we jointly consider the channel diversity; the wireless broadcast advantage and the directional antenna technology to reduce number of transmissions in the routing trees. In the second one, in addition to above factors we use interference aware path selection factor to eliminate the interference among the multicast sessions. This scheme is aiming at improving the utilization of radio resources reducing both number of transmissions and interference, at the same time. Simulation results demonstrate that our schemes are more efficient than other existing schemes as well. Manuscript profile -
Open Access Article
90 - Adaptive Algorithm Based on Compressive Sensing to Improve the Channel Estimation of M-MIMO Systems
Mohammad Ali Abedi Afrooz Haghbin Farbod RazzaziTo overcome the problem of channel estimation in massive multiple-input multiple-output (M-MIMO) systems, in this paper we propose a downlink link channel estimation scheme in frequency-division duplex (FDD) based on structured compressive sensing to reduce the pilot re MoreTo overcome the problem of channel estimation in massive multiple-input multiple-output (M-MIMO) systems, in this paper we propose a downlink link channel estimation scheme in frequency-division duplex (FDD) based on structured compressive sensing to reduce the pilot required by which Intrinsic spatial sparsity of M-MIMO delay channels are amplified. For this purpose, first, after discussing the different methods of channel estimation and examining the existing challenges, we define our roadmap and propose our algorithm, in which we estimate the channel based on the greedy orthogonal matching pursuit (OMP) algorithm. In this algorithm, spatial correlation between the channel impulse response of different transmitter antennas is used for accurate channel estimation. This algorithm obtains the channel sparsity in an adaptive way, which negates the ideal assumption of the previous works that the channel sparsity is in hand. In this case, this algorithm estimates the channel with good accuracy in cases when the exact amount of channel sparsity is not known. Finally, we present simulations that demonstrate the ability of this method to reduce the required pilot. The simulations show that the proposed channel estimation reliably obtains the channel sparsity level and the support set compared to similar methods. Manuscript profile -
Open Access Article
91 - T2MC- پلی گیاهی که از پلیمریزاسیون هموگلوبین داسی شکل درون سلولی جلوگیری کرده و بیان کانال کلسیمی فعال شده با +K را در اریتروسیت تنظیم می کند
موجیسولا کریل-اولوتای نوراح آکینولا جوسف ابدانسی< Background & Aim:Telfairia occidentalis, Moringa oleifera and Cnidoscolus aconitifolius are nutritious vegetables used individually, or in different combinations as blood boosters in managing sickle cell anemia in South-Western Nigeria. Inthis study, we evaluat More< Background & Aim:Telfairia occidentalis, Moringa oleifera and Cnidoscolus aconitifolius are nutritious vegetables used individually, or in different combinations as blood boosters in managing sickle cell anemia in South-Western Nigeria. Inthis study, we evaluated the antisickling properties of the polyherbal combination, as well as the mode(s) of action, using molecular biology techniques. < Experimental: T. occidentalis, M. oleifera and C. aconitifolius leaves were extracted separately in ethanol after identification by a taxonomist. The extracts were combined in different ratios (TMC, T2MC, TM2C, TMC2) and evaluated at 4 mg/mL concentration for antisickling properties. Ciklavit®, an antisickling nutraceutical, was utilized as the positive control. We evaluated the combination (T2MC) for the rate of inhibition of polymerization of sickle hemoglobin (HbS), erythrocyte membrane stabilization, and rehydration of dense sickle red cells in vitro. The regulation of the Gardos channel, erythropoietin (EPO), mitogenesis, and antioxidant genes was assessed in vivo by harvesting and analyzing the bone marrows, kidneys, livers of Wistar rats administered with T2MC orally at 50 and 100 mg/kg body weight for 28 days. Folic acid was employed as the positive control. < Results: The T2MC treated samples showed significantly higher (p < 0.05) antisickling activities (95.4 ± 0.15% inhibition and 95.6 ± 0.28% reversal), and cell membrane stabilization (76.8 ± 0.05%) than the positive controls. Additionally, T2MC reduced the density of sickle red cells by 18.2 ± 0.86%, and showed inhibition of polymerization of HBS comparable to positive controls. Finally, T2MC down-regulated the expression of the Gardos-channel and the erythropoietin genes suggesting that T2MC works by inhibiting the activation of Ca2+activated K+ channel, thereby preventing cell dehydration. < Recommended applications/industries: T2MC is a potent antisickling nutraceutical and could be used in the management of sickle cell disease. Manuscript profile -
Open Access Article
92 - طراحی بهینه ابعاد مقطع کانالهای روباز با استفاده از الگوریتم PSO
محسن منادی میرعلی محمدی Hamed Taghizadehدر این مقاله از الگوریتم بهینه سازی اجتماع ذرات جهت طراحی بهینه مقطع کانالهای روباز با مقاطع مثلثی، مستطیلی و ذوزنقه ای استفاده شده است. متغیرهای مقطع کانالها شامل، عمق، شیب جانبی و عرض کف می باشند. تابع هدف کمینه سازی هزینه ساخت کانال می باشد. برای کدنویسی و بهینه سازی Moreدر این مقاله از الگوریتم بهینه سازی اجتماع ذرات جهت طراحی بهینه مقطع کانالهای روباز با مقاطع مثلثی، مستطیلی و ذوزنقه ای استفاده شده است. متغیرهای مقطع کانالها شامل، عمق، شیب جانبی و عرض کف می باشند. تابع هدف کمینه سازی هزینه ساخت کانال می باشد. برای کدنویسی و بهینه سازی مسئله از نرم افزار MATLAB استفاده شده است. قید مسئله از طریق رابطه مانینگ برای جریان یکنواخت در کانالهای روباز اعمال شده است. تابع هزینه مسئله شامل هزینه عملیات خاکی، هزینه مازاد انجام حفاری و عملیات خاکی در اعماق زیر سطح زمین و هزینه اجرای روکش کانال می باشد. برای بیان مقادیر بهینه متغیرهای مقاطع از توابع ساده با عبارات هزینه واحد استفاده شده است. متغیرهای بهینه مقطع با در نظر گرفتن سطح مقطع حداقل یا محیط پیرامون حداقل به دست امده اند. کلیه برنامه های کامپیوتری در نرم افزار متلب نوشته شده است. نتایج به دست آمده نشان داد که الگوریتم PSO معرفی شده برای طراحی مقطع بهینه کانالهای روباز الگوریتمی قدرتمند می باشد. Manuscript profile -
Open Access Article
93 - Review and Compare of Hydraulic and Low-Pressure Polyethylene Canalet and Pipe Run
mahmoud malekpour Bfhrooz DahanzadehIran is one of the countries that most of it has a warm climate, dry and semi-dry.The average rainfall in the world that is 860 mm and 240 mm in Iran Rainfall precipitation in Iran is very low . Meanwhile, with the increase and construction of wells excessive and uncont MoreIran is one of the countries that most of it has a warm climate, dry and semi-dry.The average rainfall in the world that is 860 mm and 240 mm in Iran Rainfall precipitation in Iran is very low . Meanwhile, with the increase and construction of wells excessive and uncontrolled exploitation of reserves of underground water in the water level drastically gone down and our country grew and population growth, it is necessary for the optimal use of water resources and Precipitation of modern methods of irrigation. That's why in this case study on the plain Arayez located in the city of Susa to investigate and compare the performance of your channel and one of the modern irrigation techniques the pipes of low pressure polyethylene hydraulically using the principles of design, drawings, documents Treaty, books, articles, pamphlets, calculations, hydraulic modeling, observations and field surveys of the materials, performance, time has run out. The results showed that due to fewer losses of water and efficient use of water, speed of operation and high ease of implementation, water delivery to beneficiaries in a shorter time, toss less land and more efficient use of hydraulic head water pipe of low pressure polyethylene on channel is preferred. Manuscript profile -
Open Access Article
94 - 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
95 - Presenting a Fault Tolerant Mechanism for Buffering Fault in Network on Chips
Sadeq Lotfi Ali Afzali-kusha Marzie Saffari -
Open Access Article
96 - Analysis of Processing Methods, Marketing Channels and Profitability Determinants of Selected Cassava Products in Kogi State, Nigeria.
Daniel Ekpa Segun Adeola Umar Mukhtar Mary Ekpa -
Open Access Article
97 - Farmers’ Access to and Utilization of Mass Media Channels for Communicating Agricultural Information in Southern Ethiopia
Teshale Tegene Padraig Wims Dinku Gebeyehu Gebeyehu Tagesse Melkato -
Open Access Article
98 - Determinants of Smallholder Farmers' Access to Agricultural Extension Channels and their Effects on Awareness and Compliance with Good Agricultural Practices in Kenya
James Mwangi Preston Chitere James KariukiAlthough it is mandatory for smallholder farmers to comply with Good Agricultural Practices (GAPs) to participate in French bean farming for export, they lack uniformity in their farming practices. Available literature doesn't show whether farmers’ compliance with MoreAlthough it is mandatory for smallholder farmers to comply with Good Agricultural Practices (GAPs) to participate in French bean farming for export, they lack uniformity in their farming practices. Available literature doesn't show whether farmers’ compliance with GAPs is affected by their choices of extension channels and their social status characteristics. A field survey was conducted among 115 farmers who were sampled systematically, and the data was collected by the use of questionnaires. The data were analyzed descriptively and by Chi-square, Pearson's correlation, and regression models to establish the association between social status characteristics of farmers versus extension channels accessed, and its influence on awareness and compliance with GAPs. The study found that farmers' level of access to extension channels had a significant influence on their level of awareness and compliance with GAPs. Field extension workers were the most effective channel of extension. Moreover, gender, asset scores, farm acreage under French beans and income from the sale of French beans were among the social characteristics with significant influence on the type and number of extension channels accessed by smallholder farmers. This study recommends that the dissemination of agricultural innovation messages to smallholder farmers should be guided by studying their social characteristics and paying attention to women and resource-poor farmers. innovation messages should be tailored along available channels of extension to enhance access by a diverse calibre of farmers. Manuscript profile -
Open Access Article
99 - Working Effectiveness of Dissemination Channels as Perceived by Potato Growers
Tahir Munir Butt Muhammad Zakaria Yousuf Hassan Shahbaz Talib Sahi Khalid Mehmood Mashood- ul-Subtain Naeem- ul HassanA research can also reveal the cooperative effectiveness of agencies such as evaluation will lead to discover the weakness and strengths for further improvement of this program. The present study was designed in 2009 especially to see the effectiveness of the working of MoreA research can also reveal the cooperative effectiveness of agencies such as evaluation will lead to discover the weakness and strengths for further improvement of this program. The present study was designed in 2009 especially to see the effectiveness of the working of agricultural extension staff as perceived by farmers in district Okara-Pakistan. The data were collected with the help of a specifically designed and pre-tested interview schedule and total sample was 300 respondents. The results showed that most 45.0% of the respondents belonged to the old age (31-40 years) category and most 30% of the respondents were above illiterate. An overwhelming majority 77.33% of the respondents was in fall radio category. Whereas, only 29.33% of the respondents reported that they had contact with Extension Field Staff. An overwhelming majority 74.33% of the respondents indicated lack of mobility as the major constraints in approaching agricultural extension education services. It was concluded that different mass media were not fully utilized in the area which hindered not only awareness level of the respondents but also adversely effect the adoption level regarding the latest production technology related agriculture sector. On the basis of conclusions it was recommended that for first of all the educational level of the study area should be increased and Government should ensure adequate availability of rural infrastructure facilities to enable more of the dwellers cultivate the habit of utilizing medias channels as source of information in agriculture production. Manuscript profile -
Open Access Article
100 - Effectiveness of Crop Advisory Services in Aurangabad District of Maharashtra in India
Bhaskar Pant Alpa Rathi Anshul RathiThe project was undertaken to study the evaluation of effectiveness of crop advisory services and suggested measures for filling the gap in Aurangabad district of Maharashtra in India. The survey was carried out in 2010. The data was collected with the help of a specifi MoreThe project was undertaken to study the evaluation of effectiveness of crop advisory services and suggested measures for filling the gap in Aurangabad district of Maharashtra in India. The survey was carried out in 2010. The data was collected with the help of a specifically designed and pre-tested questionnaire. The project carried out in catchment area of advisory services has given substantial insight on the current status of different dimensions of advisory services running in Aurangabad and also recommends strategies to make advisory services accessible to all. The farmer’s willingness to pay assumes a key role in determining the success of a cost-recovery strategy. During the study it was interesting to note that of all the 115 respondents 46.67% agreed that their critical need was supply of inputs followed by credit purchase on which the advisory services provider should focus. The dissemination channels were not utilized properly. The results of correlation study indicate that the recommendations by the advisory services and the results after advise have a positive correlation with increase in yield showing the effectiveness of these crop advisory services. The results of multivariate regression indicated that the cropping and harvesting method, credit access, input supply linkage, insurance, age, education and interaction with other farmers have the main role in showing the variations of attitude to adoption of the advisory services. Manuscript profile -
Open Access Article
101 - A Robust Green multi-Channel Sustainable Supply Chain based on RFID technology with considering pricing strategy and subsidizing policies
Elham Kouchaki Tajani Armin Ghane Kanafi Maryam Daneshmand-Mehr Ali-Asghar Hosseinzadeh -
Open Access Article
102 - Adaptive call admission control and resource allocation in multi server wireless/cellular network
Madhu Jain Ragini Mittal -
Open Access Article
103 - Impacts of government interventions on pricing policies of the dual-channel supply chain by considering retailer services
Taher Javadi Ashkan Hafezalkotob -
Open Access Article
104 - The rate of willingness to distribute books trough the web by public publishers in Tehran province (Obstacles & solutions)
Mojtaba Ebrahimi Zohreh MirhoseiniObjective: This study aims to determine the rate of willingness to distribute books trough the internet by pubic publishers in Tehran province and presentation of difficulties and obstacles. Methodology: The method of this survey is descriptive. The population in MoreObjective: This study aims to determine the rate of willingness to distribute books trough the internet by pubic publishers in Tehran province and presentation of difficulties and obstacles. Methodology: The method of this survey is descriptive. The population include public publishers in Tehran province. Questionnaires and interviews are used for gathering information. Statistic society in this survey is 150 of public publishers in Tehran province whom participate in 16th international book fair in Tehran. Findings: In the different points of views there are two major scales in this survey: 1.The examination of criteria related to Internet distribution of books shows that the most effective indexes are government support with 73%, economical factors with 68% and cultural factors whit 66% of questionnaires. 2. The most important indexes for request books through the Internet by people and organizations are economics factors with the average of 51%, political and cultural factors with the average of 45% and government’s effect with 29%. Conclusion: The results show the rate of willingness to distribute books through the Internet has obstacles without having a good situation.On the other hand the results from view point shows the publish industry could be helped by manifold factors. Manuscript profile -
Open Access Article
105 - Assessment of manning’s resistance coefficient in compound channels
H Hajikandi M Hatami -
Open Access Article
106 - Water Velocity Measurements in Open Channels Using Volumetric Current Meter (VCM)
Seyyed Ali Akbar Moosavi Mohammad Abdolahipour-Haghighi Gholamreza Mohammadi -
Open Access Article
107 - Assessment of Turbulent Models in Computation of Strongly Curved Open Channel Flows
Omid Seyedashraf Ali Akbar Akhtari -
Open Access Article
108 - The Effect of Accounting Quality on the Transmission of Monetary Policy based on the Balance Sheet Channel to the Stock Market
Elham Malakzade Mohammad Ali Aghaei Mohammad Amri-AsramiThis paper examines the role of accounting quality on transmission of monetary policy based on balance sheet channel to stock market. Accounting quality can affect the transmission of monetary policies based on the balance sheet channel to the stock market through stock MoreThis paper examines the role of accounting quality on transmission of monetary policy based on balance sheet channel to stock market. Accounting quality can affect the transmission of monetary policies based on the balance sheet channel to the stock market through stock returns and corporate investment. The quality of firms’ accounting reports can play an important role in transmitting monetary policy. From the companies listed on the Tehran Stock Exchange, 148 firms from 2013 to 2019 were selected as a sample using screening method, and the hypotheses tested by the panel data with fixed effects. The findings show that contractionary monetary policy has negative relation with the stock returns and the firm's investment. The interaction effect of accounting quality with monetary policy has a negative and significant effect on stock returns, and the interaction effect of accounting quality with monetary policy has a positive and significant effect on new investment. Therefore, improving the quality of accounting leads to an increase in stock returns and an increase in new investment. But an contractionary monetary policy based on the balance sheet channel increases stock returns and reduces investment. Companies with low accounting quality have more sensitive to changes in monetary policy, as their fluctuations in returns and investments are more than others. Adopting the appropriate monetary policy improves the accounting information quality and consequently improves the accuracy of the market response. Manuscript profile -
Open Access Article
109 - Deep Learning Method for Sleep Stages Classification by Time-Frequency Image
Mohammad Moradi Mohammad Fatehi Hassan Masoumi Mehdi Taghizadeh -
Open Access Article
110 - Calculation of financial condition index by principal component analysis method in Iran
Zahra Haeri Nasab Kiomars Sohaili Shahram FattahiAbstract In the last few years, the financial condition index has been an important indicator to determine the situation of each country. The Financial Conditions Index can be defined as the current state of the variables that affect the future state of the economy. Th MoreAbstract In the last few years, the financial condition index has been an important indicator to determine the situation of each country. The Financial Conditions Index can be defined as the current state of the variables that affect the future state of the economy. The Financial Conditions Index is a summary index of financial variables that is effective in predicting the economic situation of a country. Financial conditions in any country are one of the most important issues in the economy. The purpose of this article is to determine and calculate the financial condition index for Iran using the basic component analysis method and time series data from 1990-2020. The results of calculating the financial condition index show that the credit channel has more weight than other channels and this shows the importance of the volume of credit in estimating the country's financial condition index during this period in the research. After that, the asset channel, ie the stock price index and the housing index, have the most weight. Among these, the exchange rate and interest rate channels have the lowest weight. Therefore, the central bank can adopt a forward-looking approach in monetary policy, so that by changing its retrospective approach in monetary policy decisions, it can show the most correct reaction. Manuscript profile -
Open Access Article
111 - Power Quality Monitor Placement Using a Tri-level Approach
Leila kamyabi Saeid Esmaeili -
Open Access Article
112 - A causative comparative analysis of the narrative on french cartoon magazine, charlie hebdo (BBC 'S PERSIAN CHANNEL AND IRAN'S TV)
لیلا شعبانی bagher saroukhaniAbstract The current research investigates the similarities and differences of various narratives made by BBC and Iran’s national channel on covering the news about the so called events regarding the insults against the holy prophet made by the French Charlie Hebd MoreAbstract The current research investigates the similarities and differences of various narratives made by BBC and Iran’s national channel on covering the news about the so called events regarding the insults against the holy prophet made by the French Charlie Hebdo cartoon magazine. In other words, the current research intends to recognize the news and media policies on this event. The main aim of the current research is to compare the narratives made by BBC and Iran’s national channel on the event. Therefore, such critical theories as framing theory, imaging theory, discourse theory , ideology and the theories on diplomacy were applied. Here, a comparative study of the narration methods and the analysis of the two above mentioned channels was done. In order to collect data, the observation method and the visual documents were used in order to identify the indices applied for the narratives. The results showed that different media with their own news and policies try to stress on the news which can attract audiences so that they may believe the news as the real ones. Keywords: insulting the holy prophet, media policy, narrative analysis, National channel Manuscript profile -
Open Access Article
113 - Comparative Study of family members who use or don't use satellite (Case study: Family members of Ardebil)
Roknadin Rashidi, AllehashemThe aim of this study is to examine the effect of satellite channels on emotions and behaviors of family members who are living in Ardebil. With respect to its goal, this study is practical, and methodologically, it is comparative. The statistical population of this stu MoreThe aim of this study is to examine the effect of satellite channels on emotions and behaviors of family members who are living in Ardebil. With respect to its goal, this study is practical, and methodologically, it is comparative. The statistical population of this study falls into two groups. The first group includes families who inhabit in Ardebil and do not watch satellite channels and the second group includes families who inhabit in Ardebil and watch satellite channels. Since the total population for both groups is unknown, Cochran's formula for infinite populations is used to determine the two sample sizes. Based on the Cochran's formula for infinite populations, sample size for both groups was calculated to be 384. The samples were gathered according to cluster random sampling method. In order to collect the required data, questionnaire was used. Moreover, SPSS software was used to analyze data and T-test was used to analyze hypotheses for both groups. The results show that there is a significant difference between the two groups, i.e. families who watch satellite channels and families who do not watch them, in the following items: legal relationships, socialize, marital intimacy, and acceptance of betrayal. Manuscript profile -
Open Access Article
114 - Smart Buying and Selling System Design Based on a Model Consisting of a Support Vector Machine Algorithm and Theory of Trend Channel
Shapoor Mohammadi Seyyed Ali Mousavi Sarhadi Mohammad NooribakhshPredicting future prices and consequently higher returns in financial markets has been one of the most important issues. In this study, the design of intelligent systems to buy and sell based on a complex model of support vector machine algorithm and theory of tre MorePredicting future prices and consequently higher returns in financial markets has been one of the most important issues. In this study, the design of intelligent systems to buy and sell based on a complex model of support vector machine algorithm and theory of trend channel been discussed. To achieve the aim of this object, this study was performed in four main steps. In the first phase, range or limits of trend channel at different time intervals were extracted and these limits in the second phase of the experiment was predicted by the algorithm and Support Vector Machine.In the second phase in the range of channel which been predicted in period of experiment, sales strategy was defined and implemented. And in the third stage, returns from system designed with efficiency resulting from the use of buy and hold strategies were compared. In all selection criteria as a sample, Intelligent system performance based on the model of combined sales and support vector machine algorithm and theory of trend channel was better than the performance of buy and hold strategy Manuscript profile -
Open Access Article
115 - A New Method based on Intelligent Water Drops for Multicast Routing in Wireless Mesh Networks
shiva zendehdelan Reza Ravanmehr babak vaziri -
Open Access Article
116 - Evaluating the Present Situation and Suggesting Appropriate Strategies forImproving the Efficiency of Pistachio Distribution Channels of Kerman Province Using SWOT Model
K. Ehsanpour T. Sadeghi R. Sedaghat -
Open Access Article
117 - Effects of Monetary Policy on Gross Development Product and Inflation through House Price Index in Iran
H. Sharifi-Renani S. Ghobadi F. Amrollahi N. HonarvarThe purpose of this research was to analyze the effect of monetary policy on gross domestic product and inflation via house price index as a proxy for other assets in Iran in 1989-2008. For the analysis time series data and vector error correlation method were used. The MoreThe purpose of this research was to analyze the effect of monetary policy on gross domestic product and inflation via house price index as a proxy for other assets in Iran in 1989-2008. For the analysis time series data and vector error correlation method were used. The results showed that in the pattern 1 the positive monetary shocks in the short run increased the product and decreased the prices but, in the long run it decreased the product and increased the prices. The debt shocks of the banks to the central bank in the short run had little effect on the product and the prices. In the intermediate run these shocks had decreased the product and increased the prices. And in the long run it increased the product and decreased the prices. In pattern 2 positive shock of the legal deposits ratio leads to decrease in the production and increase in the inflation in the short, intermediate and the long run, through the banking lending. Results shoed also that money policy instruments (banks loan to the central bank and the rate of legal deposits) had a little effect on the granted facilities of the banks. Manuscript profile -
Open Access Article
118 - بررسی عددی انتقال حرارت و جریان آرام نانوسیال آب-اکسید آلومینیم در میکروکانال مستطیلی دندانهدار
داود طغرایی آرش کریمی پور امید علی اکبری مجید زرین قلم حبیب اله عالیپورThis paper numerically examines the laminar forced convection of a water–Al2O3 nanofluid flowing through a horizontal rib-microchannel. The middle section of the down wall microchannel is Affected by cold temperatures with a constant and uniform tempreture Tc. The m MoreThis paper numerically examines the laminar forced convection of a water–Al2O3 nanofluid flowing through a horizontal rib-microchannel. The middle section of the down wall microchannel is Affected by cold temperatures with a constant and uniform tempreture Tc. The middle section is also influenced by a transverse rib array. The effects of height rib in a two dimensional rib-microchannel on flow and heat transfer parameters of laminar water-Al2O3 nanofluid are investigated. The characteristics of this research are numerically investigated by the commercial software Fluent 6.3 in a Reynolds number as Re=10 and Re=100. Four different states of hight rib are analyzed. Higher conventional internal ribs or increasing the turbulators can significantly improve the performances of the convective heat transfer within a microchannel. It is seen that larger height rib and volume fraction of nanoparticles corresponds more heat transfer rate; however the added high ribs can cause a larger friction factor than that in the corresponding microchannel by constant height rib. At present article the effect of height rib on the fluid flow parameters are also studied for all different states of it. The results show that the microchannel performs better heat transfers at higher values of the Reynolds numbers. For all values of the Reynolds numbers and volume fraction of nanoparticles considered in this study, the average Nusselt number on the middle section surface of the microchannel increases as the solid volume fraction increases. Manuscript profile -
Open Access Article
119 - مطالعه تجربی تولید آلومینیوم نانو ساختار با استفاده از روش اتصال فشاری جمعی
محسن مطهری نژاد سعید شهرکی در این مقاله روش اتصال فشاری تجمّعی که روش جدید تغییر شکل پلاستیک شدید برای تولید فلزات نانوساختار حجیم بر پایه فشردن در قالب کانالی است مورد مطالعه قرار می گیرد. این فرآیند بر روی یکی از پرکاربردترین فلزات در صنعت یعنی آلومینیوم انجام شده است. با بررسی و تحلیل ن More در این مقاله روش اتصال فشاری تجمّعی که روش جدید تغییر شکل پلاستیک شدید برای تولید فلزات نانوساختار حجیم بر پایه فشردن در قالب کانالی است مورد مطالعه قرار می گیرد. این فرآیند بر روی یکی از پرکاربردترین فلزات در صنعت یعنی آلومینیوم انجام شده است. با بررسی و تحلیل نمونهها مشخص شد که استحکام کششی نهایی پس ازچهار مرحله فرآیند به حدود 2 برابر نمونه آنیل شده افزایش یافته و از 60 به 123 رسیده است. ساختار اولیه با دانههای خشن μm6-8 به ساختاری با اندازه سلول های μm 2/1 در اولین پاس کرنشدهی، nm 627 بعد از پاس چهارم، تبدیل شده است. همچنبن سختی ویکرز نمونه ها پس از چهار پاس فرایند از 20 به 8/51 می رسد. این بهبود خواص از جمله افزایش استحکام و سختی و دستیابی به نسبت استحکام به وزن بالا میتواند به گسترش کاربرد این مواد جهت سبک سازی مؤثر سازه در صنایع خودروسازی و هواپیماسازی کمک شایانی نماید Manuscript profile -
Open Access Article
120 - CFD simulation of hydrothermal of a nanofluid in a microchannel subjected to a magnetic field
Mohammad Reza Assari Arman Mohammadian Alireza Jafar Gholibeik -
Open Access Article
121 - بررسی پارامترهای موثر بر روش اکستروژن در کانال های هم مقطع زاویه دار و انتخاب سطح بهینه با استفاده از روش طراحی آزمایش تاگوچی برای ماده تیتانیوم
حسن خادمی زاده علی افتخاری حسام الدین ابطحی فروشانیدر تحقیق حاضر به بررسی پارامترهای موثر بر روش اکستروژن در کانال های هم مقطع زاویه دار بر روی فلزتیتانیوم پرداخته شده است. ابتدا با شناخت پارامترهای موثر بر این روش، پارامترهای اصلی و عملی انتخاب و پس از آن برای بدست آوردن سطح بهینه این روش برای فلز تیتانیوم اقدام Moreدر تحقیق حاضر به بررسی پارامترهای موثر بر روش اکستروژن در کانال های هم مقطع زاویه دار بر روی فلزتیتانیوم پرداخته شده است. ابتدا با شناخت پارامترهای موثر بر این روش، پارامترهای اصلی و عملی انتخاب و پس از آن برای بدست آوردن سطح بهینه این روش برای فلز تیتانیوم اقدام به طراحی جداول آزمایش به روش طراحی آزمایش تاگوچی شد. پس از طراحی جدول آزمایش کلیه آزمایشات به روش المان محدود و با استفاده از نرم افزار آباکوس اجرا و نتایج بدست آمد و نتایج بدست آمده به روش مذکور بهینه گردید. نتایج بدست آمده نشان داد که بهینه ترین سطح آزمایش برایECAPفلز تیتانیوم در بین آزمایشات انجام شده استفاده از قالب با زاویه کانال 120 درجه، دمای محیط، 2 پاس و مسیر تکرار است. Manuscript profile -
Open Access Article
122 - تحلیل استاتیکی و دینامیکی نوعی پدآلومینیومی مورد استفاده بعنوان جاده قابل حمل
مجتبی رضایی احمد محمودی ابوذر اسحقی اسکوئی رضا حسینی ثانیبا توجه به شرایط جغرافیایی و اقلیمی بعضی از مناطق کوهستانی که اغلب پوشیده از برف و یخ می باشند راههای مواسلاتی به مناطق روستایی و بویژه پایگاههای مرزی نا مناسب بوده و رفتوآمد و وسایط نقلیه و نیز حملونقل تجهیزات و نفرات به سختی انجام می پذیرد. جهت حل این مشکل و ک Moreبا توجه به شرایط جغرافیایی و اقلیمی بعضی از مناطق کوهستانی که اغلب پوشیده از برف و یخ می باشند راههای مواسلاتی به مناطق روستایی و بویژه پایگاههای مرزی نا مناسب بوده و رفتوآمد و وسایط نقلیه و نیز حملونقل تجهیزات و نفرات به سختی انجام می پذیرد. جهت حل این مشکل و کمک به تسهیل رفت و آمد، می توان پدهایی طراحی نمود که بر روی بستر این مسیرها قرارگرفته و بعنوان نوعی جاده پوششی مورد استفاده قرار گیرند. در این مقاله نوعی پروفیل آلومینیومی فرم داده شده بصورت دهانه های ناودانی شکل جهت استفاده بعنوان پد قابل حمل جهت پوشش جاده، طراحی و تحلیل شده و بارهای وارده از طرف یک خودرو تویوتا هایلوکس با بار حدود 3 تن شبه سازی می­شود. حداکثر تنش های اعمالی بر اساس پارامترهای هندسی پد از قبیل دهانه کانال، فاصله دهانه و زوایای فرم دهی مورد بررسی قرار می­گیرد. Manuscript profile -
Open Access Article
123 - A TRAFFIC-AWARE MECHANISM TO ADJUST CONTENTION WINDOW IN 802.11E WIRELESS LANS
Azadeh Pirhayati Mohammad Nassiri -
Open Access Article
124 - A Multi-objective Leagile Demand-Driven Optimization Model incorporating a Reliable Omnichannel Retailer: A Case Study
Farnaz Javadi Gargari Zahra Saeidi-Mobarakeh Hossein Amoozad KhaliliThis research proposed a comprehensive model designed for the optimization of supply chain networks, particularly emphasizing leagile demand-driven systems within the context of omnichannel operations. The proposed model integrates various parameters such as total cost, MoreThis research proposed a comprehensive model designed for the optimization of supply chain networks, particularly emphasizing leagile demand-driven systems within the context of omnichannel operations. The proposed model integrates various parameters such as total cost, lead time, service level, and residual capacity, addressing the complex interdependencies among an omnichannel environment of retailers. To enhance the model's reliability, a hybrid meta-heuristic algorithm is employed, combining the strengths of MOEA/D-DE (Multi-Objective Evolutionary Algorithm with Differential Evolution), IBEA (Indicator-Based Evolutionary Algorithm), and NSGA-II (Non-dominated Sorting Genetic Algorithm II). The collaborative optimization approach ensures adaptability and efficiency in addressing diverse and intricate optimization challenges inherent in omnichannel networks. The numerical data from a case study on the supply of sanitary masks in Tabriz, Iran, during August 2021 is utilized to validate the model within the specific omnichannel context. The study includes a thorough sensitivity analysis, demonstrating the model's robustness against disturbances in the omnichannel network. The consistent performance of the odel across various disruption scenarios underscores its reliability and efficacy in ensuring the stability of supply chain operations within omni-channel frameworks. This observed resilience significantly enhances the overall robustness of the supply chain, especially when confronted with disruptive events. The model's ability to maintain stability under diverse conditions contributes to fortifying the supply chain against potential disruptions, thereby augmenting its adaptive capabilities in dynamic environments..Managerial and practical implications are discussed, emphasizing the significance of the proposed reliable omnichannel approach in leagile demand-driven systems. Manuscript profile -
Open Access Article
125 - Analyzing recruitment factors in talent management to improve the individual performance of employees
mohamadtaghi mahmodi fardin javanbakht badri shahtalebiThe purpose of this study was to investigate the recruitment factors in talent management in order to improve the individual performance of Iranian education and training staff through qualitative-quantitative method. After coding and categorizing the first 40 themes, i MoreThe purpose of this study was to investigate the recruitment factors in talent management in order to improve the individual performance of Iranian education and training staff through qualitative-quantitative method. After coding and categorizing the first 40 themes, its content validity was assessed in two ways, qualitative and quantitative. Using the Holstein coefficient, the reliability of the themes was 0.85. Estimated. In the quantitative phase of the study environment, 5873 individuals were selected using Cochran's formula 369 as the sample size by non-random sampling. Values corresponding to Cronbach's alpha coefficient were reported for themes above 0.75. . In order to analyze the data, descriptive statistical methods were used in quantitative data analysis including frequency distribution tables and graphs, and in the inferential part the confirmatory factor analysis method and covariance-based structural equation modeling approach were used. According to valuation indices, recruitment methods, competency and recruitment channel with factor loadings of .57, .55, .39, .37 had the most explanatory effect in this model, respectively. Manuscript profile -
Open Access Article
126 - The Persepolis's clay tablets
Neda ZiyabakhshIn solar (shamsi) American investigators from chicago university succeded to obtain more than clay tablets written with Elamian letters and sealed with persian cuneiform letters which belonged to eastern north of persepolis. These privileged and exclusive MoreIn solar (shamsi) American investigators from chicago university succeded to obtain more than clay tablets written with Elamian letters and sealed with persian cuneiform letters which belonged to eastern north of persepolis. These privileged and exclusive documents allocated to the list of ortificers and experts payrolls which were participated ip stablishing Persepolis construction. This essay tries to offer some innovative points of the tablets and their engraving, and also translation of some of them. Manuscript profile -
Open Access Article
127 - Synthesis and molecular docking studies of 4H-chromene derivatives as a calcium channel blocking agent
somayeh makarem yalda kashkooli Afshin Rajabi Khorrami Shabnam nadjafiVoltage-gated Ca2+ channels play a vital role in the transmission of electrical signals by temporarily increasing intracellular Ca2+ levels and exerting an action potential on the cell surface membrane. As a blocker of calcium channels, nimodipine specifically blocks L- MoreVoltage-gated Ca2+ channels play a vital role in the transmission of electrical signals by temporarily increasing intracellular Ca2+ levels and exerting an action potential on the cell surface membrane. As a blocker of calcium channels, nimodipine specifically blocks L-type calcium channels, which are present in smooth muscle cells in blood vessels. By blocking these channels, nimodipine prevents calcium from entering the cells, resulting in relaxation and dilation of the blood vessels. In this way, several 4H-chromene derivatives were obtained through electro synthesis in propanol, using electrons as a catalyst to generate propanol anion as a base. This process involved obtaining malononitrile anion, which readily underwent Knovenagel condensation with aromatic aldehydes, followed by the reaction of the active methylene of dimedione with the electrophile C=C of the intermediate. Finally, the expected product was o−btained through cyclisation and tautomerization. The effect of current, solvent, and anode type were studied, and it was observed that the optimized current, solvent, and anode for the synthesis of nanoparticles of 4H-chromene were 50 mA/cm2, propanol, and a magnesium anode in an undivided cell at room temperature. The proposed method produces 4H-chromene directly from initial compounds in a mild and safe condition. All synthesized compounds were screened through molecular docking studies, which utilized the crystal structure of CavAb. Compound 8f exhibited the minimum binding energy and good affinity toward the active pocket of CavAb compared to nimodipine as a calcium channel blocking agent. Manuscript profile
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