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Open Access Article
1 - An Effective Task Scheduling Framework for Cloud Computing using NSGA-II
Hanieh Ghorashi Meghdad Mirabi -
Open Access Article
2 - Fuzzy multi-objective assembly line balancing problem: Fuzzy mathematical programming approach
A. Mahmoodirad S. Niroomand m. saneiDesign of assembly line is done in order to more coordinate a collection of some consecutive work stations for the aim of obtaining more productivity from the work stations and workers. The stations are arranged in a way to have a continuous and constant material flow. MoreDesign of assembly line is done in order to more coordinate a collection of some consecutive work stations for the aim of obtaining more productivity from the work stations and workers. The stations are arranged in a way to have a continuous and constant material flow. In this paper a multi-objective formulation for assembly line balancing is introduced. As a solution approach a two-step approach is proposed. In the first step the problem in a fuzzy environment is converted to a crisp problem and in the second step an efficient solution of the crisp problem is found by fuzzy programming approach. The efficiency of the proposed approach is shown by a numerical example. Manuscript profile -
Open Access Article
3 - Designing Automatic Re-balancing Model Using Technical Analysis Concept of Divergence
S. M. Lale Sajjadi S. Hojjat Vakili S. Babak EbrahimiThe classical efficient market hypothesis states that it is not possible to beat the market by developing a strategy based on historical price series. In this paper we propose a profitable automatic trading system based on the divergence definition in relative strength MoreThe classical efficient market hypothesis states that it is not possible to beat the market by developing a strategy based on historical price series. In this paper we propose a profitable automatic trading system based on the divergence definition in relative strength index and using other technical analysis tools which presents empirical evidence confronting the classical efficient market hypothesis. In order to validate the developed solution an extensive evaluation was performed, comparing the designed strategy against the market itself and several other investment methodologies. An intraday database comprised of 59 symbols from NYSE in The time span 2010 to 2016 was employed. The whole sample is categorized over two sub-periods, training and widening its validity. By enjoying Meta-heuristic algorithms the rules in the first sub-period was improved. Then, in the second division the improved model was evaluated. The results indicates that this model improved predictability power and its performance is better than buy and hold and random strategies Manuscript profile -
Open Access Article
4 - investor's utility in portfolio rebalancing strategies
Alireza Validi M. Ebrahim AghababaeiChoosing an appropriate strategy for portfolio rebalancing is a crucial matter in today's financial markets with logarithmic and high frequency transactions. In log-optimal approach named also active strategy, portfolio rebalancing is a continuous time process and the o MoreChoosing an appropriate strategy for portfolio rebalancing is a crucial matter in today's financial markets with logarithmic and high frequency transactions. In log-optimal approach named also active strategy, portfolio rebalancing is a continuous time process and the optimality of such strategy is assured only for very long-term investment horizons. But continuous-time rebalancing is impractical and portfolios have finite horizon usually. In this article we will introduce another strategy with less rebalancing frequency to attain log-optimal utility at least, because of costly and infeasibility of continuous rebalancing for investors. Then we will implement these strategies on a portfolio consist of several Tehran exchange stocks. The results showed that «Hybrid Rebalancing Strategy» offers more utility for investors in comparison to other strategies. Manuscript profile -
Open Access Article
5 - The role of rural cities in regional balancing Case Study: Town of Vahidieh in the City of Shahriar
Homaira Mahdibigy Masoud Mahdavi HajiloueePopulation concentration in developing countries has brought about numerousproblems in large cities. Among those problems we can mention populationcongestion, migration, housing deficiencies, unemployment, environmentaldegeneration, etc.Accordingly, regional and urban a MorePopulation concentration in developing countries has brought about numerousproblems in large cities. Among those problems we can mention populationcongestion, migration, housing deficiencies, unemployment, environmentaldegeneration, etc.Accordingly, regional and urban analysts have started paying attention to thedevelopment of small and medium size towns as an essential solution for dealing withthe imbalance originated from development of prime cities.In this study, we have assessed, analyzed and examined Vahidieh's urbanizationprocess as well as that of Shahriar area as a sample of Tehran Province towns andcities before and after this occurance. Variables studied are population, occupancy,educational-cultural facilities, political-administrational, telecommunications,commercial and service providing facilities. Analysis of the data acquired from thestudy through statistical models - entropy coefficient, elasticity coefficient, MorrisDevelopment Index, parabolic-sectional variation analysis model – has been assessedand evaluated. Results derived from statistical models show that the urbanizationprocess of Vahidieh has not had desirable effects in balancing distribution ofpopulation and establishment of settlements throughout the area, stabilization of thepopulation, prosperity of solar rural sections, and growth of agricultural sectiontherefore being unsuccessful in that regard. Despite the fact that at some period,growth of industrial section in the city of Shahriar and in Tehran has had positiveeffects on population growth due to low cost of housing for people who have mostlybeen service and industrial laborers.Ultimately, the overall results drawn from this study reveal that urbanization ofVahidieh has not had an effective role in the development process of rural outskirts.. Manuscript profile -
Open Access Article
6 - The effect of investment horizon on optimum portfolio rebalancing frequency in portfolios of stocks listed on Tehran Stock Exchange with short-selling
Alireza Validi javad validiIn active portfolio rebalancing strategy so called log-optimal portfolio rebalancing strategy, rebalancing is executed continuously so that utility function achieves to its maximum value. But the implementation of this strategy is impossible for its high transaction cos MoreIn active portfolio rebalancing strategy so called log-optimal portfolio rebalancing strategy, rebalancing is executed continuously so that utility function achieves to its maximum value. But the implementation of this strategy is impossible for its high transaction costs. In this article, we introduce another strategy to get utility of active strategy at least by using active strategy parameters. on the other hand, choosing the optimum rebalancing frequency depends on the investment horizon. Choosing the best rebalancing frequency among the all possible ones for each given investment horizon is the main purpose of this article. So we first introduce different rebalancing strategies and then semi-active one to obtain the optimum frequency as a function of investment horizon. Implementation of this model is based on neglecting the short-selling constraint in Iran stock market. Implementation results on a real portfolio in Tehran stock exchange showed that choosing the optimum frequency is more sensitive for short horizons. And also using this frequency in semi-active strategy will increase the value of utility function in comparison to active strategy. Manuscript profile -
Open Access Article
7 - comparing the return and risk in technical methods with strategies of reinvestment and rebalancing and a buy and hold method (Case Study: Tehran Stock Exchange)
Elahe Alizadeh Nodehi Gholamreza Mahfoozi Atieh VasireshThe present research has been carried out aiming at comparing the return and risk in selected technical methods, using two strategies of reinvestment and rebalancing, and a buy and hold method as an inactive investment method, in Tehran Stock Exchange during the years b MoreThe present research has been carried out aiming at comparing the return and risk in selected technical methods, using two strategies of reinvestment and rebalancing, and a buy and hold method as an inactive investment method, in Tehran Stock Exchange during the years between 2006 and 2012. After data collection about 15 active firms, Excel broadsheet software was used to categorize information and calculate the variables. Finally the resulted data were analyzed through the use of SPSS software. In this research, risk and return of the selected technical methods including moving average, two moving averages, money flow index, trading range breakout, and money flow index were calculated by using the two strategies and then the return and risk of the selected technical methods were compared using buy and hold method. Results showed that the return of technical methods with two strategies of reinvestment and balancing do not have meaningful differences. Meanwhile, the risk of reinvestment method has had a meaningful difference with the risk of balancing investment method and in most results; the risk of technical method with reinvestment strategy has been less that the same technical method with balancing strategy. On the contrary, the technical method with two strategies posed for return of buy and hold method has been different from technical methods with reinvestment and balancing strategies and this difference has been more for technical method with balancing strategy than reinvestment strategy. On the whole, in most selected technical methods, the returns of the selected technical method have been less than buy and hold method with a trivial difference. And the return of buy and hold method has been less than technical method used with balancing investment strategy. Regarding risk, most results gained showed that the risk of the selected technical method with reinvestment strategy has been less than the risk of buy and hold method and risk of buy and hold method has been more than the technical method used with rebalancing investment strategy. Manuscript profile -
Open Access Article
8 - Portfolio Rebalancing Model based on Fuzzy Decision Theory
Zahra Amirhosseini Laleh Shabani BarzegarIn this paper, we used portfolio rebalancing strategy as a mechanism for review of the stock of investor The Fuzzy approach to trading costs. The designed Model is based on three key factors, expected return, risk and the stock Degree of liquidity. To test the mo MoreIn this paper, we used portfolio rebalancing strategy as a mechanism for review of the stock of investor The Fuzzy approach to trading costs. The designed Model is based on three key factors, expected return, risk and the stock Degree of liquidity. To test the model, we used data and information of traded stocks on the Tehran Stock Exchange during the period 1388 to 1390 and with arrival of Enter the subjective expectations levels of investors, we have examined the performance of the model in two scenarios. The results can show the subjective expectations levels of investors than expected return, risk and liquidity in order to re-balancing of Investors portfolio. Manuscript profile -
Open Access Article
9 - Portfolio Rebalancing for Small Investors: Modeling and Solving Procedure
Amir Abbas Najafi Mojgan AghaeiOne of the main concerns of investors in financial market is reduction of risk and achieving desired return. One of the ways that reduce risk, is creating portfolio; but due to market changes, the optimal portfolio will not be stable and it is necessary to be control an MoreOne of the main concerns of investors in financial market is reduction of risk and achieving desired return. One of the ways that reduce risk, is creating portfolio; but due to market changes, the optimal portfolio will not be stable and it is necessary to be control and rebalancing. Generally, investors in financial market are divided into two categories: real investors and legal investors. The volume of real investors' capital is little and is called small investors, too. Portfolio selection and rebalancing for small investors need attention to their criteria and limitations that are not considered in the classic financial models such as Markowitz’s model. These criteria are transaction cost, dividend, systematic risk and transaction units. In this study, a multi-objective and comprehensive model are provided that addresses the goals and limitations of small investors. For this purpose, the lexicographic goal programming is used and a mixed integer programming model is provided. Finally, the model is solved with actual data and the results are analyzed. Manuscript profile -
Open Access Article
10 - The Future of U.S. Rebalancing in Turbulent Indo-Pacific
Ghadeer Nabizadeh Jahanbakhsh Ezadi Seyed Ali Tabatabaei Panah Hamidreza ShirzadThe shift in US strategy - from a counterbalanced strategy to a region now called the Indo-Pacific - is significant in a variety of ways. Therefore, this study aims to examine the future of the US strategy in Indo-Pacific and seeks to answer the question that according MoreThe shift in US strategy - from a counterbalanced strategy to a region now called the Indo-Pacific - is significant in a variety of ways. Therefore, this study aims to examine the future of the US strategy in Indo-Pacific and seeks to answer the question that according to the US strategy in the Asia-Pacific, how will the balance of power in the vast and strategic region change in the next decade? The region's unique features add to the Indo-Pacific strategic importance, and so the United States has sought to maintain its dominance in the region by shifting its strategy from Atlantic to Pacific. Regarding the rebalancing strategy, there seems to be ambiguities in its priorities and its components, which were tried to be reduced by presenting documents, findings, descriptions and explanations. Descriptive-analytical method was implemented to do the research and as per its findings, from one perspective, the change in China's behavior has caused the US strategic pivot to the region, and from the other perspective, the US strategic turn to the region has changed China's behavior as an active and effective regional power over the past two decades. In a nutshell, the turbulance in the regional balance of power, especially with the implementation of the massive Silk Road economic belt project (BRI) and the use of Anti-Access/Area Denial (A2/AD) strategy to deepen control on the vast Indo-Pacific, challenging US supremacy and causing problems in balance of power in favor of Beijing. Manuscript profile -
Open Access Article
11 - Load Balancing in Cloud Computing Environment by Considering the Dependency among Tasks and Using Adaptive Genetic Algorithm
Yalda Derakhshanian Seyed Javad Mirabedini ali haroun abadiThe increasing computing needs leads to an increase in the importance of using cloud computing day by day. Cloud computing is a computing model based on computer networks that presents a new pattern to supply resources, so that users request or release resources based o MoreThe increasing computing needs leads to an increase in the importance of using cloud computing day by day. Cloud computing is a computing model based on computer networks that presents a new pattern to supply resources, so that users request or release resources based on their needs. When the requests for computing resources increase, proper distribution of resources becomes very important, because if a computational unit has a large number of tasks and the other one is almost idle, resources are not used well and also makespan would be very high. Therefore, in order to overcome this problem, load balancing technique is used. In general, from the computing point of view, the process of distributing the loads on the processing units in a balanced way is called load balancing. In most researches, interactions between running tasks are not considered, so if the tasks in interaction with each other are located in separate processing units in a distributed network, the interactions between them would be effective on makespan. The aim of this research is to present an approach which can achieve a desirable load balancing in the network, such that the makespan and idle time of machines minimized, taking into account the interactions between the tasks. For this purpose, the genetic algorithm is used. The obtained experimental results show that localizing the interactions will have a significant impact in reducing the makespan. Manuscript profile -
Open Access Article
12 - Study on load balancing using fuzzy adaptive algorithm
Zahra Dehghani S. J Mirabedini علی HarounabadiCloud computing is one of the newest developments in information technology and has been widespread in the industry and different educational sectors over time. Cloud computing is not a new technology, but it is also a new method for providing services via the Internet. MoreCloud computing is one of the newest developments in information technology and has been widespread in the industry and different educational sectors over time. Cloud computing is not a new technology, but it is also a new method for providing services via the Internet. Cloud computing is a new concept as a storage of virtualized resources and it increases the efficiency, saves the hardware resources, and enhances the computing power. The load balancing is one of the main concerns in cloud computing space; and it can increase the speed, efficiency, customer satisfaction and reduce the response time in the case of proper performance. This paper also studies the problems of load balancing in cloud computing and introduces several load balancing algorithms. Finally, an algorithm is proposed and evaluated to improve the load balancing in cloud computing space. Our proposed algorithm utilizes the combination of fuzzy and min-max algorithms; and we have found that our algorithm has better performance than the non-fuzzy algorithm in most of the cases. Manuscript profile -
Open Access Article
13 - Optimal Balancing of Spatial Suspended Cable Robot in Point-to-Point Motion using Indirect Approach
Mojtaba Riyahi Vezvari Amin Nikoobin -
Open Access Article
14 - Improvement of Energy, Lifetime and Delays in Underwater Wireless Sensor Networks by Effective Deployment of Relay Nodes
Reyhane Zehtabzadeh Reza Gholamrezayi -
Open Access Article
15 - A Review of Scheduling and Resource Allocation Algorithms with a Load Balancing Approach in Cloud Computing
Yaser Ramzanpoor -
Open Access Article
16 - Dynamic Migration of SDN-based Switches to Distribute Control Layer Load and Increase Efficiency Using Ryu Controller
neda abbasi Shiva KarimiIntroduction: Network needs in today's era include comprehensive improvement of communication and connections with more bandwidth, minimum delay and high throughput. Software-defined networking is one of the most promising modes of future Internet development due to the MoreIntroduction: Network needs in today's era include comprehensive improvement of communication and connections with more bandwidth, minimum delay and high throughput. Software-defined networking is one of the most promising modes of future Internet development due to their centralized planning and management capabilities. The load balancing problem for distributed SDN controllers is one of the fundamental challenges of these networks, and a single centralized controller may cause reliability and scalability problems, and although several controllers can solve these problems, a flexibility mechanism is required for load balancing.Method:Therefore, in this research, a load balancing mechanism is proposed based on the load information strategy, so that each controller in the system periodically reports its load information to other controllers, and the overload controllers of the plan, load infomation They do not collect all other controllers before local decisions are made, which in turn reduces controller resource consumption. A load balancing strategy is proposed in the proposed response time-based scheme for multiple SDN controllers, which takes into account the real-time response time characteristics that change with the controller load. Another key part of the proposed scheme is that all these things are done in the Ryu controller by choosing an appropriate response time threshold and processing multiple overload controllers simultaneously, which can solve the load balancing problem of the SDN control panel of the overload controller well. slow This model proposes to transfer the management of specific switches between controllers.Results: In the simulation, the historical load and the future load of the switches were considered, and a switch migration algorithm with double weight was proposed, which led to a decrease in the frequency of switch migration. Experiments have proven that this scheme can quickly provide load balancing between controllers and reduce the number of switch migrations. The results showed that this design can lead to the migration of the overload controller and quickly reduce the workload of the overload controller. As a result, the proposed scheme can effectively achieve load balancing of multiple SDN controllers with high speed. Manuscript profile -
Open Access Article
17 - Model to determine Optimization number of work stations and balancing line by using genetic algorithm in the saipa company
saeed amini Reza Ehtesham Rasi vahid amini hosein taheriGiven the importance and attractiveness of the mixed product parallel lines balancing problem and the importance of the human factor in the development process and also very few studies in relation to several simultaneous objectives that is a new approach in the field o MoreGiven the importance and attractiveness of the mixed product parallel lines balancing problem and the importance of the human factor in the development process and also very few studies in relation to several simultaneous objectives that is a new approach in the field of parallel assembly lines, this paper presents a two-objective combined integer mathematical model for balancing mixed-model parallel assembly lines. Because of the complexity of the problem is in the class of NP-hard problems, the mathematical model can’t be solved for the actual dimensions of the industry. Genetic algorithm was used to solve this problem, coding and designing is done with MATLAB. The proposed model is evaluated by data set provided in this area. Results reflect the good performance of the model and improved objectives. Therefore proposed model leads to reduce the number of stations required in lines and minimize the total cost of human resources in mixed model parallel assembly lines. Manuscript profile -
Open Access Article
18 - Development of On-line load balancing algorithm in workshop systems (qualitative study)
Nima Rahmani Alireza Irajpour Naser Hamidi Akbar Alamtabriz Reza Ehtesham RasiOne of the most important problems at the tactical level is the mass production of different orders, each of which has different priorities according to the production conditions and the importance of customers. The production line consists of several workstations and m MoreOne of the most important problems at the tactical level is the mass production of different orders, each of which has different priorities according to the production conditions and the importance of customers. The production line consists of several workstations and machines, each in production frequency. They are interconnected and the input is one output. In this case, each machine and process that must produce the product is faced with process and technology limitations in terms of time, volume and weight of each work and physical health of machines, manpower efficiency. This article aims to take into account all the factors affecting the balancing of the production line, which is of particular importance in workshop production planning, and by analyzing the history of solving the problems of the production line and using experts, the component Identify the ones that are effective in planning and scheduling the production line, and using the combined method of Swara and Copras, these effective components add to the balancing algorithm in time in production systems. The results of this study show that the update made in the balancing algorithm during the production line compared to the previous methods has operational capability and quality in results Manuscript profile -
Open Access Article
19 - Experimental Condition Monitoring of Unbalanced Rotary Shaft Based on ANFIS by Using Piezoelectric Sensor
Mojtaba HasanluTodays, there are using hybrid methods in order to reach high level degree of accuracy and reliability for engineering systems. According to more reality modelling of system, it was mixed three strategies such as fuzzy, artificial neural networks and adaptive method. Th MoreTodays, there are using hybrid methods in order to reach high level degree of accuracy and reliability for engineering systems. According to more reality modelling of system, it was mixed three strategies such as fuzzy, artificial neural networks and adaptive method. This mixed methods is presenting and analyzing each of engineering problem. Adaptive-Neural-Fuzzy (ANF) can be showed in which a robustness and reliable model by designer who assess that in order to make decision as well. In this paper, main aim is experimental condition and health monitoring of rotary system is including shaft, bearings, electromotor which are main components of system and using piezoelectric as sensor by ANF method. Firstly, by using LabVIEW software, experimental data of flexural vibration was recorded with piezoelectric sensor where were fixed on top of bearings, and secondly we used MATLAB software for analyzing experimentation for presentation of ANF model in order to curve fitting of data. Manuscript profile -
Open Access Article
20 - OPTIMIZING U-SHAPED MIXED ASSEMBLY LINES WITH A META- HEURISTIC GRASSHOPPER OPTIMIZATION ALGORITHM
Neda Mozaffari Hasan Mehrmanesh Mahmoud MohammadiFailure to achieve a balanced production system means not fully utilizing the capabilities of the production system, and because of the high cost of production systems, balancing these systems is one of the most important concerns of production managers. Is. For this re MoreFailure to achieve a balanced production system means not fully utilizing the capabilities of the production system, and because of the high cost of production systems, balancing these systems is one of the most important concerns of production managers. Is. For this reason, this study aimed to balance the complex assembly lines in order to reduce the cost of manpower and reduce the number of workstations. There are two general approaches to problem solving, To evaluate the problem under different conditions two problems of medium and large size are solved. First, an intermediate problem is solved by the exact method through the Gaussian software (GAMS) and the Salon Baron (BARON). Then again the intermediate problem is solved with the grasshopper meta-algorithm and their results are compared with the precise method and by this the accuracy and accuracy of the meta-metric method is measured so that it can be used to solve the large size problem. Finally, the values equal to the Grasshopper Algorithm Target Function and the Gaussian Target Function software show that the algorithm performs well, resulting in a large problem solved by the Grasshopper Metabolic Algorithm, resulting in cost savings and reduced workstations. Manuscript profile -
Open Access Article
21 - Online Distribution and Load Balancing Optimization Using the Robin Hood and Johnson Hybrid Algorithm
Nima Rahmani Amir Najafi -
Open Access Article
22 - Green Vehicle Routing Problem with Safety and Social Concerns
arghavan sharafi Mahdi Bashiri -
Open Access Article
23 - A Multi-Objective Particle Swarm Optimization for Mixed-Model Assembly Line Balancing with Different Skilled Workers
Parviz Fattahi Parvaneh Samouei -
Open Access Article
24 - Productivity Improvement through Line Balancing by Using Simulation Modeling
Aregawi Yemane Gebremedhin Gebremicheal Teklewold Meraha Misgna Hailemicheal -
Open Access Article
25 - Productivity Improvement of BOB T-shirt through Line Balancing Using Control Limit analysis and discrete event simulation (Case study: - MAA Garment and Textile Factory)
aregawi yemane -
Open Access Article
26 - A Hybrid Unconscious Search Algorithm for Mixed-model Assembly Line Balancing Problem with SDST, Parallel Workstation and Learning Effect
Moein Asadi-Zonouz Majid Khalili Hamed Tayebi -
Open Access Article
27 - Facility Location and Inventory Balancing in a Multi-period Multi-echelon Multi-objective Supply Chain: An MOEA Approach
Seyed Habib A. Rahmati Abbas Ahmadi Behrooz Karimi -
Open Access Article
28 - Application of a Mathematical Model for Balancing Assembly Lines (Case Study: Tractor Manufacturing Company)
Maghsud Solimanpur Amin ZeinalzadehAssembly lines are important approaches for mass production of industrial products. Nowadays, these lines are also used for producing customized products in low volume. Undesirable balancing increases the cycle time and idle time and subsequently decreases production ra MoreAssembly lines are important approaches for mass production of industrial products. Nowadays, these lines are also used for producing customized products in low volume. Undesirable balancing increases the cycle time and idle time and subsequently decreases production rates and line efficiency while augmenting the cost of system. These factors ultimately reduce the productivity of manufacturing systems. For this reason, the researchers and practitioners of production and operation management take a deep concentration on assembly line balancing problem. In this paper, Boisen’s theoretic principles of line balancing are studied in the first section. In the second section, the current situation of a sample firm is analyzed and accordingly a suitable mathematical model is used for balancing with respect to the optimal standard and constraints of the firm. This model has been solved with a branch-and-bound procedure using LINGO Software and the global optimum solution has been found. In order to evaluate the effect of balancing, proper indices have been calculated for the current and proposed designs. Based on this comparison, some conclusions about the improvement of system’s performance have been pointed out. Manuscript profile -
Open Access Article
29 - An Analysis of the Settlement System in Ilam for Space Balancing from the Last Decades to 2011
Farideh Delshad Majid ShamsThe present study has been analyzed with respect to spatial equilibrium in Ilam province over the last few decades until 2011. A look at the census of 1976 to 2011 shows changes in the number and volume of urban areas in Ilam. The purpose of this research was to investi MoreThe present study has been analyzed with respect to spatial equilibrium in Ilam province over the last few decades until 2011. A look at the census of 1976 to 2011 shows changes in the number and volume of urban areas in Ilam. The purpose of this research was to investigate and study this phenomenon and its effects by studying the population and demographic statistics of the understudy area. The analysis was performed and the relevant data and requirements were extracted.It was concluded from the present study that one of the effective factors in the irregular settlement system of Ilam province was rural migration and of course the villagers could not be blamed for the disruption of the housing system since the lack of facilities had forced them to do so. As a result, they had rushed to the center of the province, which was regarded as the hub of the facilities and welfare. Finally the researchers presented some solutions to balance the area understudy one of which can be said to have an applied plan. Manuscript profile -
Open Access Article
30 - Design of a Sliding Mode Controller for Two-Wheeled Balancing Robot
Ehsan Abbas nejad Abbas HarifiNowadays, the control of mechanical systems with fewer inputs than outputs (Under-actuated systems) has become a challenging problem for control engineers. Two-wheeled balancing robots is one of the appealing examples of this category. This type of robot contains two pa MoreNowadays, the control of mechanical systems with fewer inputs than outputs (Under-actuated systems) has become a challenging problem for control engineers. Two-wheeled balancing robots is one of the appealing examples of this category. This type of robot contains two parallel wheels and an inverted pendulum. In this research, designing of controller have been investigated for flat surfaces. For controller design, the extract dynamics of the system has been achieved based on Kane's method. Then for the two-wheeled balancing robot, one sliding mode controller has been designed for yaw angle, and another sliding mode controller has been designed to control both position and pitch angle based on a proposed sliding surface. The main feature of the proposed controllers is that all of controllers have been designed based on the nonlinear dynamics of system. Also, considering the limits of uncertainties while designing systems, the robustness of controllers have been increased. The common problem of sliding mode control is chattering phenomenon that has been greatly reduced using saturation function instead of sign function. Simulation results comparision of the designed controller with a LQR controller, validates the effectiveness of the proposed controller. Manuscript profile -
Open Access Article
31 - Russia’s Security Strategy (2005-2015): From Soft Balancing to Hard Balancing against Hegemon
Saeed Mirtorabi Mohammad Bagher Alitabar FiroozjaniAbstract: The disintegration of bipolar system led to the rise of the United States as world dominating and hegemon power. This change in international system led the researcher to focus their study on the reaction of smaller power to the policy of hegemon power. In th MoreAbstract: The disintegration of bipolar system led to the rise of the United States as world dominating and hegemon power. This change in international system led the researcher to focus their study on the reaction of smaller power to the policy of hegemon power. In this direction, Russia's behavior in recent years against the United States has been studies. The article by a causal-analytical approach studies Russia's security strategy during 2005 to 2015. The underlying hypothesis is that the grand security strategy of Russia in the said period had been soft balancing against the hegemon. Nevertheless, Russia has kept the option of hard but calculable balancing against the hegemon in exceptional situations. The article refers to the reaction of Russia in Georgian crisis (2008), Ukraine crisis (2014) and Syrian crisis (2011-2017) and evaluated the hypothesis in the above said crises. The article is of the view that the Russian intervention in the Syrian crisis is related to the perception of Russia about the possible scenario of Assad's fall and the resultant security threat for Russia but Russia has been careful that the military intervention in Syria should not expand to the level which instigate the United States and its allies and direct them to a possible military confrontation. Manuscript profile -
Open Access Article
32 - “Omni balancing” and Saudi Arabian Coalition Building against the Islamic Republic of Iran
Abdol Majid Seifi Naser pourhassanAbstract After the victory of Islamic revolution in Iran, several regional coalitions were formed in geopolitical region around Iran, particularly in Arabian Peninsula. One of the important regional actors of these coalitions is Saudi Arabia. The basis of Saudi authori MoreAbstract After the victory of Islamic revolution in Iran, several regional coalitions were formed in geopolitical region around Iran, particularly in Arabian Peninsula. One of the important regional actors of these coalitions is Saudi Arabia. The basis of Saudi authorities in “making coalition” is “balance of threat” which is formed in the face of Islamic Republic of Iran as the source of threat. The present article by rejecting this argument wants to answer this question that the role making by Saudi Arabia in balancing in the Middle East region, particularly in Persian Gulf region and Arabian Peninsula against Iran is based on what logic and base? The underlying hypothesis propounded by the article is that the real root of coalition making by Saudi Arabia, from Persian Gulf Cooperation Council (GCC) till Determination Storm Operation against Ansarullah of Yemen and against Islamic Republic of Iran is “Omni aspect balancing” which the source of them are internal crisis of Saudi Arabia. The methodology used in the article is descriptive-analytical. Manuscript profile -
Open Access Article
33 - Obama's Middle Eastern Strategy: From Assigning Responsibility to Allies to Accepting limited responsibility
فرزاد محمدزاده ابراهیمی محمدرضا ملکی سید جواد امام جمعه زادهAbstract There has been much criticism about Obama’s Middle East strategy and some believe that it lacked strategic prospect. An examination of the Middle East strategy of the United States under Obama administration from the viewpoint of neo-classic realism not MoreAbstract There has been much criticism about Obama’s Middle East strategy and some believe that it lacked strategic prospect. An examination of the Middle East strategy of the United States under Obama administration from the viewpoint of neo-classic realism not only does not approve this view but also indicates that Obama has adopted a coherent strategy from the beginning of his presidency towards the Middle East and on this basis he has made significant efforts to promote the United States national security. So it is interesting to answer this question as to what strategy Obama adopted vis-à-vis the Middle East and what policies was pursued to achieve those goals? The present article by a descriptive-analytical method wants to show that the Middle East strategy of the United States under Obama administration started with assigning responsibility to its allies within the framework of balancing from remote distance and by the passage of time moved to accept limited responsibility. Taking into consideration the closeness of Obama’s administration foreign policy to realism theory, the authors of the article believe that this theory can better explain the foreign policy of the United States under Barack Obama presidency. Manuscript profile -
Open Access Article
34 - The role of the Islamic Republic of Iran in softening Russia's balance with the America
محمود علیپور گرجی Abdul Majid Seifi Mohadeseh RozbahaniCompetition and balancing were the major features of the Cold War era. After the collapse of the Soviet Union, the international system has undergone a change and has crossed the bipolar stage, and the United States became one of the areas of the international distribut MoreCompetition and balancing were the major features of the Cold War era. After the collapse of the Soviet Union, the international system has undergone a change and has crossed the bipolar stage, and the United States became one of the areas of the international distribution of power structure, and the other actors were marginalized. After Georgia and Ukraine crises, Russia began new balancing with the United States, but, it has not the power and influence of previous years and cannot balance directly with the United States, so it has turned to indirect opposition. In this soft balancing, Russia considers the states like Islamic Republic of Iran which have anti-hegemonic approach in their foreign policy. This consideration is caused to this question: what is the status of Islamic Republic of Iran in Russia’s soft balancing against the United States of America? This article investigates the status of Islamic Republic of Iran in Russia’s soft balancing against the United States. This article has been conducted using descriptive-analytical method. Manuscript profile -
Open Access Article
35 - Offshore Balancing and the United States Foreign Policy toward ISIS
محمود علیپور گرجی Abdul Majid seifi Sanaz YousefiIn recent years, the formation and enlargement of the Islamic State in Iraq and Sham (ISIS) lead to new dynamics in Middle East politics. It regards to the US foreign policy toward the ISIS impact on the new structure of relations, coalitions and disintegrations in the MoreIn recent years, the formation and enlargement of the Islamic State in Iraq and Sham (ISIS) lead to new dynamics in Middle East politics. It regards to the US foreign policy toward the ISIS impact on the new structure of relations, coalitions and disintegrations in the region. In the basis of offshore balancing grand strategy, the United States tries to prevent in formation any regional hegemon in the Middle East. The main question of this article is: what we can explain the United States foreign policy toward the ISIS(From 2013 to 2017) in the Middle East? The hypothesis of this article is: «the United States by using of offshore balancing grand strategy, in one hand, buck-passing the liability of control of the ISIS to Iran, Syria and Iraq, and the other hand, using ISIS as an instrument for balance of power in the Middle East». The present study is an applied research in a descriptive-analytical method. The findings of the study indicate that the United States in 2013-2017 is trying to curb ISIS on the one hand and increase its influence on the other hand at the expense of the government to which it has been transferred. Manuscript profile -
Open Access Article
36 - Components and foundations of Saudi Arabia's desirable Regional order in West Asia (2020-2015)
Mahsima Abdollahian Mostafa BoroujerdiFollowing the Regional developments known as Arab Spring and the popular uprisings in the Arab world, Saudi Arabia, sensing threatened by the new developments, initiated altering its regional strategies. A great portion of the changes made in the regional approach of Sa MoreFollowing the Regional developments known as Arab Spring and the popular uprisings in the Arab world, Saudi Arabia, sensing threatened by the new developments, initiated altering its regional strategies. A great portion of the changes made in the regional approach of Saudi Arabia has been linked to the reign of King Salman, and particularly to the rise to power of Crown Prince Mohammed bin Salman. Aiming to study and analyze the modality of the formation of desirable regional order of Saudi Arabia, the question arises: "What are the characteristics and components of the desirable Regional order of Saudi Arabia and what are its mechanisms and practical tools?" As a probable answer, the study reasons that the desirable regional order of Saudi Arabia in its periphery (Arabian Peninsula) is based on "hard and soft hegemony", "being defined as a dominant regional player in the Arab world (countries with cultural and social commonalities with Saudi Arabia)" and " "Balancing in the Middle East region," And the study concludes that Saudi Arabia seeks to establish this order by building"alliance and coalition with the countries of the region", "attracting the support of America and the Zionist regime", and "strengthening its armament and military capabilities". Manuscript profile -
Open Access Article
37 - China’s Rising Power and the Reaction of the United States and India to it
Abomohammad Asgarkhani Mohammad Javad GhahramaniAbstract After the disintegration of the Soviet Union, Chinese leaders realizing the change of international system to a multi-polar state and decrease of the power of the United States tried to balance their power against the United States. China’s cooperation w MoreAbstract After the disintegration of the Soviet Union, Chinese leaders realizing the change of international system to a multi-polar state and decrease of the power of the United States tried to balance their power against the United States. China’s cooperation with Russia at this period was the manifestation of this perception. But after Kosovo crisis and the failure of Russia to show suitable reaction, China admitted the unipolarity of international system. As a result China tried to strengthen her position internally. The adoption of this policy resulted into increasing power of China in all dimensions. Naturally this evoked the reaction of other neighbouring countries and powers that are having difference with China. The major neighbor of China is India, which is growing and developing fast and claims to play an important role in international system. The question raised by present article is “what are the reaction of the United States as an important power pole and India to the rising power of China?” the article also wants to answer this question as to why the United States with the cooperation of India wants to balance China at a time that China does not want to externally balance them? The article argues that the rise of China’s power will have repercussion for the United States and India. The United States does not want that China should become a hegemon in Asia. India feels threatened by China’ increasing military power and influence in South Asia and close relations with Pakistan. The underlying hypothesis is that the increase in power of China has forced the United States and India to come closer and balance Chinese power and protect themselves from the consequences of the rise of power and influence of China. Manuscript profile -
Open Access Article
38 - An Efficient Routing Algorithm to Lifetime Expansion in Wireless Sensor Networks
Meisam Kamarei Ghasem Kamarei Zohreh Shahsavari -
Open Access Article
39 - Active Cache Placement Method for Load Balancing in Named Data Networking
Babak Nikmard Naser Movahhedinia Mohammad Reza Khayyambashi -
Open Access Article
40 - Task Scheduling Using Particle Swarm Optimization Algorithm with a Selection Guide and a Measure of Uniformity for Computational Grids
Mona Torabi -
Open Access Article
41 - On the Analysis of Urban Hierarchy and Balancing the Spatial Distribution of Urban Centers Population in Guilan Province
E. Pourramzan E. Darvish-RahimabadiUrban hierarchy in terms of quantity is the best form of organizing space. Because it makes the distribution of activities and services at the community level, balancing classification, performance and appearance of different ways of life in the various geographical are MoreUrban hierarchy in terms of quantity is the best form of organizing space. Because it makes the distribution of activities and services at the community level, balancing classification, performance and appearance of different ways of life in the various geographical areas .Population distribution system is not balanced in the province and do not get a proper image form of accommodation and population settlement and cities .It was determined by studying the urban hierarchy of Gilan province during the years 1355 to 1395 .It was determined by studying the urban hierarchy Gilan during the years 1355 to 1395 the city of Rasht as the capital of Gilan and the metropolis area with a 42.41 percent of the urban population in 1395 in the "First City" demonstrated their dominant role and now all factors: geographical, social, economic, political, cultural and ...is in the interest of the city and to the detriment of small living centers. Meanwhile, concentration of the population led social and cultural difficulties such as housing problems, expensive land, rent, traffic congestion, failures in service and finally, a wide range of environmental contamination. This city in terms of having appropriate areas of political, economic and cultural, various migrants from surrounding areas has attracted and has been away urban hierarchy of Rank – Size law; So that in 1355 the city of Rasht was 3.41 equal the second largest city (Anzali).In 1390 the population of city of Rasht is 5.48 equal the second population (Anzali).To determine the population dynamics and rank cities in recent years, and its effects on the unbalanced development of urban centers, centralization and domination of one city in the provincial urban it is necessary to take measures in order to spatial organization of urban centers and a balanced distribution of geographical Society according to the possibilities and the limitations and comparative advantages of each region and with respect to land use planning policies and modify spatial development of urban centers. The most important approaches of this research is centralization Of city and Rasht area and attention to small and medium cities Province Manuscript profile -
Open Access Article
42 - The Role of Middle Cities in Spatial Development of Hamedan province with Emphasis On Malayer
majid shamsThe rapid population growth and urbanistion increase are among the phenomena which have appeared in a lot of countries in the world including Iran in recent decades; although the urban population increase is not an undesirble phenomenon per se and some think of it as a MoreThe rapid population growth and urbanistion increase are among the phenomena which have appeared in a lot of countries in the world including Iran in recent decades; although the urban population increase is not an undesirble phenomenon per se and some think of it as a symbol of development . Thus, what is going to be discussed and analyzed here is the unbalanced distribution of population in urban centers rather than the percentage of urbanity . However Hamedan province possesses some natural capabilities and suitable strategic situation as well as a good history , it dose not have a suitable social and economical development; there is no hierarchy regardung dwelling system and ranking rational services in its cities, towns, and even rural areas . As a result ,a large number of its population is concentrated in the center of the province (i.e. Hamedan itself ) and a first-rank model governs the city . In this research, through a sstematic and comprehensive method , the present status of the province and the role of middle cities in the spatial development of the province has been studied in a logical and rational way . Manuscript profile -
Open Access Article
43 - Assembly line performance and modeling
Arun B. Rane Vivek K. Sunnapwar -
Open Access Article
44 - Assembly line balancing to minimize balancing loss and system loss
D Roy D Khan -
Open Access Article
45 - A new heuristic method based on CPM in SALBP
M Fathi A Jahan M.K Ariffin N Ismail -
Open Access Article
46 - Rise of China and India- US foreign policy toward each other from 2001 to 2019
naser Hadian -Jazy MEHDI BAZVANDAbstractSince 2001, the relationship between India and the United States has been witnessing a fundamental shift from both sides. Many analysts see the rise of China as one of the main reasons for the positive shifts in the foreign policy of the United States and India MoreAbstractSince 2001, the relationship between India and the United States has been witnessing a fundamental shift from both sides. Many analysts see the rise of China as one of the main reasons for the positive shifts in the foreign policy of the United States and India towards each other. Given this point, this study seeks to answer the question of why the rise of China has led to a rapprochement between India and the United States. The results of this study show that as China increasingly seeks to undermine India's national interests, balancing strategy has become a requirement for India's foreign policy toward China. On the other hand, the choice of off-shore balancing by the United States to prevent the emergence of a regional hegemon in East and South Asia has led to a rapprochement between the United States and India. Under such circumstances, the United States could reduce its costs of dealing with the emerging power of China by burden sharing with its partners Manuscript profile -
Open Access Article
47 - Iran in Germany Balancing Policy
Faranak Khodnegah Davoud Kiani Mahdi Javdani moghaddamAmong the main western power, Germany is the only government that have not left a colonial or domineering record in Iranian historical memory, in the last quarter of Qajar’s political life, throughout the Pahlavi era and during the last four decades of the Islamic MoreAmong the main western power, Germany is the only government that have not left a colonial or domineering record in Iranian historical memory, in the last quarter of Qajar’s political life, throughout the Pahlavi era and during the last four decades of the Islamic Republic of Iran, expanding relations with German have always been one of the Iran’s foreign policy priorities. Decoding the reason of the continuation of historical relations between the two countries, have always been one of the main concerns of international relations scholars. The purpose of this article is to thoroughly examine the political relations between Iran and Germany, after the Islamic revolution in spite of the ideological confrontation between Iran and west. Based on this fact, the main question of this article is how Germany, despite of the intense lobbying of the United States and Israel, have led EU foreign policy toward engagement with Iran. Given the inspiration of this research, from the theory of the balance of power of relation in the analysis of German-Iranian relations, the research method used is also a descriptive analytical one. According to the reasoning of this research in response to the main questions is that Germany have been able to lead by applying some form of balance policy to pursue its geopolitical interests in developing relations with Iran and adhering to its transatlantic obligations to the U.S. and its historical responsibility for Israel, have been able to take the lead in EU foreign policy in engaging Iran. Manuscript profile -
Open Access Article
48 - Deterrence as a Security-defense Strategy of the Islamic Republic of Iran: Challenges, Requirements, and its Strategic Model
Masomeh Ansarifard امیر محمد Haji-YousefiSince the collapse of the bipolar system and the change in "system arena" and "issues in the new world system", the Middle East has changed into one of the main bases for implementing the new deterrence strategy. Thus, the Islamic Republic of Iran, which is located in t MoreSince the collapse of the bipolar system and the change in "system arena" and "issues in the new world system", the Middle East has changed into one of the main bases for implementing the new deterrence strategy. Thus, the Islamic Republic of Iran, which is located in the disputed region of the Middle East, has highlighted deterrence to ensure its security. The present qualitative study aims to see whether Iran's current strategy is consistent with the components of the “new deterrence” by considering identity-, authority-, and interest-based approaches in national, regional and international levels. In this regard, the main hypothesis raised is Iran's security-defense strategy is inspired solely by the military component of deterrence, not all of the new components of deterrence. In other words, the synergy of all dimensions including the military, political, and economic dimensions of Post-Cold War Deterrence did not exist in the strategic equation of Iranian deterrence,and deterrence for Iran has been a military response to deterrent actions of extra-regional adversaries and their regional allies.In this regard, the present study seeks to achieve a comprehensive understanding of deterrence and its evolution with a pathological approach in order to explain the appropriate model of deterrence in Iran. Based on the results, Iran's performance is more based on the requirements of asymmetric warfare than deterrence due to the increasing impact of both regional and international environments on the national environment.Further, the success of Iranian deterrence relies on the use of "deterrence with denial" versus "deterrence with punishment." Manuscript profile -
Open Access Article
49 - Analyzing Iran and Russia's balancing policy towards America from the point of view of Kent Waltz
mohammad Bidgoli asghar rajabi dehborzoeiDuring the last four decades of the existence of the Islamic Republic of Iran, the relationship with the Russian Federation has always been one of the priorities of Iran's foreign policy. Deciphering the reason for the continuation of deep political and economic relatio MoreDuring the last four decades of the existence of the Islamic Republic of Iran, the relationship with the Russian Federation has always been one of the priorities of Iran's foreign policy. Deciphering the reason for the continuation of deep political and economic relations between the two countries has always been one of the concerns of international relations researchers. Despite the ideological confrontation between the Islamic Republic of Iran and the Russian Federation and the deep ties between Russia and Israel and the level of diplomatic relations between these two countries, How Russia has been able to bring these relations to a strategic level with Iran. The purpose of the current research is to answer this basic question: what is the balancing policy of Iran and Russia towards the United States of America from the point of view of Kent Waltz? This research has been used with a descriptive and analytical method and inspired by the theory of the balance of forces of Kent Waltz in the analysis of the relations between Iran and Russia. The results of the current research show that Russia, by emphasizing its common interests with Iran, has developed cooperative models in the regulation of bilateral relations. He has engaged in various military, political and economic cooperations and has chosen the best approach towards this tactical ally. Manuscript profile -
Open Access Article
50 - Transition to Hybrid Balancing in China’s Foreign Policy toward the United States
Abdolmajid SeifiChina is the most important great power that has posed a fundamental challenge to the position of the United States in the post-Cold War era. China's significant economic growth and becoming the second largest economy in the world, significant progress in the mili MoreChina is the most important great power that has posed a fundamental challenge to the position of the United States in the post-Cold War era. China's significant economic growth and becoming the second largest economy in the world, significant progress in the military and space fields, and the expansion of influence in different regions of the world have strengthened the prospect of expanding this challenge. In the base of grand strategy of offshore balancing, on the one hand, the United States has been trying to buck pass part of the responsibility of containing China to the states that have the desire and ability to contain China, and on the other hand, it is doing straight balancing. Straight balancing of the United States is in the form of a hybrid war. The complexity and multidimensionality of the US approach in this hybrid war has caused China's response to this war to have multiple dimensions, which can be elaborated as a hybrid balancing approach. From this point of view, the main question of this research is that what is China's strategy to deal with the hybrid war of the United States? In response, the present article claims that China's response to the United States' hybrid war is based on hybrid balancing, which takes place in the three dimensions of political, economic, and informational balancing. The present research was done by using descriptive-analytical method. Manuscript profile -
Open Access Article
51 - Investigating the Determinant Factors and Processes in the West Asian Security Order Based on the Omni-Balancing Theory
mohammadreza dehshiri Hossein ShahmoradiIn this paper, the determinant factors and processes in the West Asian region are investigated in three areas of structures, actors, and processes as interconnected and interrelated items. The theoretical framework of the research is based on the Steven David''s Omni-Ba MoreIn this paper, the determinant factors and processes in the West Asian region are investigated in three areas of structures, actors, and processes as interconnected and interrelated items. The theoretical framework of the research is based on the Steven David''s Omni-Balancing theory, asserting that governments not only consider external military threats in their own security calculations, but also address domestic dangers. After reviewing the structures affecting the security order of the region, the writers explain the role of extra-regional, sub-national/non-state and state actors. Then, processes affecting the security order of West Asia will be examined with emphasis on identity differences, poverty and inequality, water crisis and Islamism. The article then focuses on regional patterns of regional security in West Asia, including Puzzle and Chess patterns, which put actors involved in the security equitations of the region in a state of perplexity. The paper concludes that due to the uncertainty and unpredictability of regional dynamics, the lack of a regulative principle, the plurality and diversity of actors and finally the fluid process, it would be difficult to predict the future of regional order and security. In such a situation, it seems that the ultimate solution would be initiatives such as security networking and a strong region. The research method is descriptive-analytic and documentary and reliable internet based sources have been used to collect the information. Manuscript profile -
Open Access Article
52 - Tension Development and Transition from Turkish strategical balancing in the Middle East
Ebrahim Mottaghi Fatemeh Nekoolal Azad Amir RamezaniAbstract Transition from balancing can be regarded as the advent of neo-Ottomanize strategies. Neo-Ottomanize has found new ties with the realities of Caliphate and rule-oriented groups. Since the Justice and Development Party has close ideological ties with the rule-or MoreAbstract Transition from balancing can be regarded as the advent of neo-Ottomanize strategies. Neo-Ottomanize has found new ties with the realities of Caliphate and rule-oriented groups. Since the Justice and Development Party has close ideological ties with the rule-oriented Society of the Muslim Brothers, it has exerted notable influence on the mechanisms concerning political and security roles it can play in Turkey and the Middle East. The new assessment of the elements of power and the political role played by Turkey goes back to the time when the Justice and Development Party made an attempt to follow a new model of neo-Ottomanize in the structure as well as the regional strategic goals of Turkey. Although Ahmet Davutoğlu brought forward the theory of Strategic Depth: Turkey’s Position in International Relations”, the approach could not pave the grounds for regional balancing in Turkey’s security- policies. The strategic ties of Turkey and Saudi Arabia have affected the balancing process. The present study shows the “balancing strategy” has failed in its function to minimize the contradictions between Turkey and its surrounding including the Arabic Middle East and the East Mediterranean. The key question posed by the article is “Why the strategic balancing in the Justice and Development Party’s foreign policy has undergone a change?” Our hypothesis stresses that regional crises and emergence of new security contradictions in the Middle East has made it inevitable for Turkey to support regional Caliphate in its foreign policy while Turkey’s strategic balancing is inclined towards developing the interaction-cooperation-competition model with regards to the necessities of international policies as well as the strategic necessities of Turkey in its regional and international treaties. Manuscript profile -
Open Access Article
53 - Russia’s Balancing Behavior in Middle East: Case Study of Iran and Saudi Arabia (2012-2018)
Seyed Hasan MirfakhraeiAbstract Considering the first signs of shaping of a new regional order in the Middle East since 2011, Russia has taken new approaches toward this critical region. The approaches which show regaining Moscow’s role in this area. However, due to the new complexitie MoreAbstract Considering the first signs of shaping of a new regional order in the Middle East since 2011, Russia has taken new approaches toward this critical region. The approaches which show regaining Moscow’s role in this area. However, due to the new complexities, the current Middle East is basically different to the past. The states are more independent and inter-connections in various areas has led to shaping complicated fronts; that each of them requires particular patterns of relations between the players. These complexities caused emergence of an empirical balancing behavior by Moscow toward regional states. The behavior based on specific approaches such as direct military intervention, counter terrorism, shaping anti-West coalitions and following up international energy strategies. The main components of Russia's balancing behavior can be summarized in emphasis on functional dimensions, playing with all state actors, task division without confrontation and interaction with non-state actors. This approach has been adopted Russia’s relations with Islamic Republic of Iran and Saudi Arabia, as two key regional actors with opposite and sometimes contradictory interests, and has resulted in well and balanced relations with the two countries. Manuscript profile -
Open Access Article
54 - Load Balancing Distribution Network Reconfiguration Based on Binary Particle Swarm Optimization
Mostafa Karimi Mohsen Simab Mehdi Nafar -
Open Access Article
55 - A Learning Automata Approach for Load Balancing in Software-Defined Networks
Mohammad Irandoost Mona Salehi -
Open Access Article
56 - Loss reduction of low voltage distribution network by considering of load balancing impact
Javad Khoshnodi Mohammad-Hossein Alizadeh Mahmoud-Reza HaghifamEvery year, a large part of the energy produced by power plants is lost on the way to the consumer in the entire power system, and a significant share of these losses is related to the distribution networks. One of the most important factors affecting losses in distribu MoreEvery year, a large part of the energy produced by power plants is lost on the way to the consumer in the entire power system, and a significant share of these losses is related to the distribution networks. One of the most important factors affecting losses in distribution networks is the existence of load imbalance due to the random consumption of subscribers and the lack of equal distribution of subscribers among different phases of the network. The main challenge in this field is the lack of an effective method to study the effect of load balancing on the losses of a large-scale network. In this regard, this paper studies the effect of load balancing on network loss reduction by applying the concept of clustering and representative feeders. the effectiveness of the proposed method has been proved by the simulations on the low voltage distribution network of Alborz province, and the results show the high efficiency of the proposed method. Manuscript profile -
Open Access Article
57 - Solving the multiobjective portfolio rebalancing model with fuzzy parameters to develop the expected value by genetic algorithm
Hosein Didehkhani zeynab Fereidooni koochaksaraeiThe ability to choose the most optimal change in the composition of the portfolio of assets, brings the investor to the highest level of investment in terms of efficiency and effectiveness in the dynamic and changing market. Rebalancing the portfolio occur through a cha MoreThe ability to choose the most optimal change in the composition of the portfolio of assets, brings the investor to the highest level of investment in terms of efficiency and effectiveness in the dynamic and changing market. Rebalancing the portfolio occur through a change in the composition of assets weights, remove the assets, bought and sold assets and etc. Therefore, in this study solving the multiobjective portfolio rebalancing model with fuzzy parameters. The return, risk, liquidity and uncertainty as a key financial criteria are considered. Due to its importance as well as transaction costs, the net return of the portfolio are adjusted. the multiobjective portfolio rebalancing model with fuzzy parameters is solved by fuzzy goal programming and a hybrid intelligent algorithm that combines fuzzy simulation with a genetic algorithm. The results demonstrated the effectiveness of the solution approach and effciency of the model in practical applications of rebalancing an existing portfolio. Manuscript profile -
Open Access Article
58 - ‘BALANCING AND SEQUENCING’ VERSUS ‘ONLY BALANCING’ IN MIXED MODEL U-LINE ASSEMBLY SYSTEMS: AN ECONOMIC ANALYSIS
Masoud Rabbani Zohreh Zahedian-Tejenaki Farnoush Otrody Amir Farshbaf-Geranmyeh -
Open Access Article
59 - Business Portfolio Strategic Management, Formation Ambidextrous at the Holding Company Level
mohamad talari seyed hamid khodadad Hosseini asadolah kordnaeij adel azarGiven the current business environment, one of the main challenges in corporates is how to manage their businesses portfolio strategically. On this basis, and given the criticisms of existing corporate portfolio management (CPM) models, the purpose of this study provide MoreGiven the current business environment, one of the main challenges in corporates is how to manage their businesses portfolio strategically. On this basis, and given the criticisms of existing corporate portfolio management (CPM) models, the purpose of this study provide a model for effective portfolio management in corporate. This research is inductive approach and qualitative method and classic grounded theory strategy was used. Semi-structured interviews to collect data and using theoretical sampling with 22 experts were interviewed in the 13 corporate. Coding and analysis of the interviews led to the formation of the concept of "ambidextrous portfolio" as the core category of the study. The findings led to the formation of two matrix "Capability" and "Requirement” for analysis the SBU. Using the output and the dimensions of the two matrices, "Balancing Matrix" was formed on the basis of the logic underlying ambidexterity. This matrix divided SBUs to four category and corporate decisions will be different for each group. Finally it was founded that corporates to analyze their portfolios use tools orientation or approach orientation. Corporate orientation determine balance of their portfolios. Manuscript profile
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