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Open Access Article
1 - To study the relationship between political connections, value-based management and performance efficiency: Theory of Political Economy Test
Hossien JannatMakanThe purpose of the present research is to study the effect of political connections on the value-based management and performance efficiency indicators. In this research, the indicators such as public companies and percentage of institutional ownership of affiliated com MoreThe purpose of the present research is to study the effect of political connections on the value-based management and performance efficiency indicators. In this research, the indicators such as public companies and percentage of institutional ownership of affiliated companies (quasi-public) were used to evaluate the political relations of the companies and to measure the performance efficiency of both indicators ( manpower and investment productivity). For this reason, the data related to the companies listed in Tehran Stock Exchange were collected for a 10-year period during the years of 2008- 2017 for 113 companies and the regression modeling of combined data using ordinary least squares method and the dymamic combined data using the generalized method of moment (GMM) were used by the EVIEWS 9.5 software. The results of the research showed that there is a positive and significant relationship between the public companies and the value-based management ranking. The results also showed that there is a negative and significant relationship between the affiliated companies with institutional ownership and the value-based management ranking . There is also a positive and significant relationship between the public companies and the performance efficiency in both indicators (manpower and investment productivity) . In addition to the results, the hypothesis 2 about the relationship between the quasi-public companies and the performance efficiency shows a negative and significant relationship between the quasi-public companies and the manpower productivity and conversely a positive and significant relationship with the investment productivity. Manuscript profile -
Open Access Article
2 - Evaluation of SIP signaling implementation using QoS parameters
mojtaba jahanbakhsh azharivs azharivs maryam homayooni Ahmad akbariNormal 0 false false false EN-US X-NONE AR-SA MicrosoftInternetExplorer4 MoreNormal 0 false false false EN-US X-NONE AR-SA MicrosoftInternetExplorer4 !mso]> st1:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal" mso-tstyle-rowband-size:0 mso-tstyle-colband-size:0 mso-style-noshow:yes mso-style-priority:99 mso-style-qformat:yes mso-style-parent:"" mso-padding-alt:0cm 5.4pt 0cm 5.4pt mso-para-margin:0cm mso-para-margin-bottom:.0001pt mso-pagination:widow-orphan font-size:11.0pt font-family:"Calibri","sans-serif" mso-ascii-font-family:Calibri mso-ascii-theme-font:minor-latin mso-fareast-font-family:"Times New Roman" mso-fareast-theme-font:minor-fareast mso-hansi-font-family:Calibri mso-hansi-theme-font:minor-latin mso-bidi-font-family:Arial mso-bidi-theme-font:minor-bidi} Abstract The variety of services on IP networks and the need for network technology convergence have resulted in many access networks to adopt the IP technology. The Session Initiation Protocol (SIP) is an end to end application level protocol for establishing, terminating and modifying sessions and has experienced widespread use in IP networks due to its distinguished features such as being text based, independence from the underlying network, and more importantly supporting various types of mobility. In fact these features have lead SIP to be used as the core signaling protocol in the IP Multimedia Subsystem, which is the control plane proposed for next generation networks by the 3GPP community. Nevertheless, the performance of SIP servers when used by the millions of users of the next generation networks is not well established. In this paper we evaluate the performance of SIP servers using a test bed developed at the Iran University of Science & Technology. We consider eight different configurations for SIP server and also study the effect of using TCP and UDP as the transport protocol for SIP packets. We measure several parameters including call setup delay, call failure rate and SIP server throughput. Our results suggest that using SIP in large networks require using special techniques for balancing the load of SIP servers as well as mitigating temporary overloads. Manuscript profile -
Open Access Article
3 - Investigating the Effects of Hardware Parameters on Power Consumptions in SPMV Algorithms on Graphics Processing Units (GPUs)
Farshad KhunjushAlthough Sparse matrix-vector multiplication (SPMVs) algorithms are simple, they include important parts of Linear Algebra algorithms in Mathematics and Physics areas. As these algorithms can be run in parallel, Graphics Processing Units (GPUs) has been considered as on MoreAlthough Sparse matrix-vector multiplication (SPMVs) algorithms are simple, they include important parts of Linear Algebra algorithms in Mathematics and Physics areas. As these algorithms can be run in parallel, Graphics Processing Units (GPUs) has been considered as one of the best candidates to run these algorithms. In the recent years, power consumption has been considered as one of the metrics that should be taken into consideration in addition to performance. In spite of this importance, to the best of our knowledge, studies on power consumptions in SPMVs algorithms on GPUs are scarce. In this paper, we investigate the effects of hardware parameters on power consumptions in SPMV algorithms on GPUs. For this, we leverage the possibility of setting the GPU’s parameters to investigate the effects of these parameters on power consumptions. These configurations have been applied to different formats of Sparse Matrices, and the best parameters are selected for having the best performance per power metric. Therefore, as the results of this study the settings can be applied in running different Linear Algebra algorithms on GPUs to obtain the best performance per power. Manuscript profile -
Open Access Article
4 - A Combination Method of DEA, DEMATEL and ANP for Evaluation of ERP Systems
amir amini alireza alinezhadIn this study Data envelopment analysis is used for the assessment of enterprise resources planning systems of 18 manufacturing companies, to determine whether the defined goals for ERP systems have been able to affect the performance after the implementation of the sys MoreIn this study Data envelopment analysis is used for the assessment of enterprise resources planning systems of 18 manufacturing companies, to determine whether the defined goals for ERP systems have been able to affect the performance after the implementation of the system. Considering the identification of effective factors in implementing ERP systems and using the previous researches, the performance evaluation criteria of this system were identified. Then, using experts’ views the most important input indicators were ranked by fuzzy DEMATEL and output indicators by ANP. In this ranking, time spent on implementation, the implementation infrastructure, training and user support were identified as top input indicators, and three indicators of productivity increase, proper resource management and user satisfaction were selected as top output indicators. Using selected indicators, the performance of ERP systems of selected companies was evaluated. The results of this research will be useful in identifying the strengths and weaknesses of companies compared to top ones and making their ERP system even better. Manuscript profile -
Open Access Article
5 - مدلهای تعیین و مدیریت دستمزد نیروی کار در اقتصاد اسلامی و مقایسه آن با مدل نئوکلاسیک
مهرداد آقا محمد علی کرمانی ایرج توتونچیان حمیدرضا نویدی رمضانعلی مروی -
Open Access Article
6 - Selection a strategic process for applying the Lean Six Sigma methodology to improve performance by using a hybrid approach, BSC & DEA
اردشیر بذرکار Soleyma IranzadehMost organizations to increase productivity and ultimately achieve sustainable competitive advantage for survival in the global business arena, focusing much of their attention to fix the problems, difficulties and weaknesses in their own systems and processes. Organiza MoreMost organizations to increase productivity and ultimately achieve sustainable competitive advantage for survival in the global business arena, focusing much of their attention to fix the problems, difficulties and weaknesses in their own systems and processes. Organizations spend a lot of time and resources to plan and develop their own strategies, but most of them fail in the implementation of the strategy.Organizations are looking for a breakthrough performance through integrated processes and technology to respond to the needs of our customers. The use of Lean Six Sigma methodology for organizations that operate in a competitive world is very functional. The importance of implementing Lean Six Sigma in an organization that is in issue or to be discovered process properly investigated and the selection process to the strategic objectives of the organization so that the organization can be targeted to improve process performance and take steps towards continuous improvement. The purpose of this research is a strategic process through the accounting department processes to improve performance through the application of Six Sigma methodology Ghavamin Bank was pure. Therefore, in this study, the criteria for the selection process to select a strategic process through six main measure Balanced Scorecard and by experts Ghavamin Bank, were identified. Then processes information related to the accounting department of the bank through a database of Ghavamin as well as interviews with experts were collected Bank. The final step using cross efficiency DEA model to assess the efficiency of the process was done, the results showed that the process was No. 18 in the first place. And as the bank's strategic process to make continuous improvement in the Lean Six Sigma methodology was introduced. Manuscript profile -
Open Access Article
7 - Evaluation efficiency of the internal structure of decision making units in the past, present and future using dynamic network data envelopment analysis and artificial neural network
javad niknafs mphammadali keramati jalal haghighatmonfaredNetwork data envelopment analysis models and dynamic network data envelopment analysis models cannot evaluated the future performance of the internal structure of decision-making units .In other words, all NDEA and DNDEA models evaluate the past performance of their DMU MoreNetwork data envelopment analysis models and dynamic network data envelopment analysis models cannot evaluated the future performance of the internal structure of decision-making units .In other words, all NDEA and DNDEA models evaluate the past performance of their DMUs and their internal structure, and measure their efficiency and inefficiency, and ultimately rank them based on that assessment .In this paper, we are going to evaluation the future efficiency of deposit and lending sections in bank branches. In order to notified inefficiencies in the internal structure of a unit before the occurrence, we will prevent it.This approach can change the role of managers from the evaluator to the planner .First, using the literature of the subject and opinion of the experts, the structure of the bank branches and the network variables were determined .Then, the values of variables are forecasted using the artificial neural network for the next two periods.Finally, a DNDEA model is formulated using the values of past periods and predicted values.Using its efficiency, its branches and its internal structure have been evaluated in the past, present and future. Manuscript profile -
Open Access Article
8 - Investigating the effective factors on the effectiveness of electronic signature in the prosperity of inter-firm business environment (Case study: Oil industry)
In the current study, identification and analysis of the factors affecting the electronic signature effect on the prosperity of the job area between the institutions (case study: oil industry) had been studied.In this study, in order to analyze the resulted data, the de MoreIn the current study, identification and analysis of the factors affecting the electronic signature effect on the prosperity of the job area between the institutions (case study: oil industry) had been studied.In this study, in order to analyze the resulted data, the descriptive and deductive statistical methods have been used, and the SPSS Software is used in this regard. For choosing the test of the hypotheses, first, the data normality test (Kolmogrov-Smirnov) was used for the calculation. The results of the normality test showed that there is no condition for the equality of the variances and the data are not normal. Therefore, in order to perform the test, the non-parametric tests were used, because the conditions related to the parametric tests were not available. For performing the test of the mean difference between the education and using the digital (electronic) signature, regarding the fact that the education level was in the form of categories, and it was higher than two categories, the one-way variance analysis test was used. To compare the means with each other and to determine the level of the meaningfulness of the differences, Tookie Test was used. Regarding the point that all the persons are inside two categories from the viewpoint of the job backgrounds, the T-Test of the independent groups is used in order to review the job backgrounds of the people. Eventually, the final result of the test of the hypotheses showed that considering all the variables, excluding verifying the identity and being undeniable in the process of job units, the effect of utilizing the electronic signature in juicing up the job in two institutes is too much, and the effect of these two ingredients is lower than the average. Manuscript profile -
Open Access Article
9 - The effect of professional ethics model of higher education managers on improving their efficiency
Ameneh Rabiee عصمت مسعودی amineh ahmadiAbstract: Aim: The present study was the effect of professional ethics model of higher education managers on their performance. This research was applied in terms of purpose and descriptive (survey) in terms of data collection. Methods: The statistical population stu MoreAbstract: Aim: The present study was the effect of professional ethics model of higher education managers on their performance. This research was applied in terms of purpose and descriptive (survey) in terms of data collection. Methods: The statistical population studied in this study included specialists, academic and organizational experts including officials of the central organization, heads and deputies of departments, heads of faculties and group managers and experts and directors of higher education of the Islamic Azad University of Tehran. Based on morgan table and simple random sampling method, 300 of them were selected as the sample size. To collect data, the professional ethics questionnaire of higher education managers and the performance questionnaire were used. Results: The path coefficients, which are interpreted as “standardized regression beta coefficients”, were used to test the research and to determine the effect of the two variables, and the t-value was used to evaluate the significance of the effect. The value of coefficient of significance (t-statistic) for the two research variables is more than 1.96 and the calculated t-test is larger than the critical t-test at the level of error of 1%. Therefore, the professional ethics of managers is effective on their organizational efficiency and its effect is 0.913 and its direction is positive. Conclusion: The results showed that the professional ethics model of higher education managers has a positive and significant effect on improving their efficiency. Therefore, improving the efficiency of employees depends on having a knowledgeable, competent and artistic manager with professional ethics. An efficient and effective manager will be able to improve the level of efficiency of employees by removing obstacles and creating the necessary conditions. Manuscript profile -
Open Access Article
10 - Evaluation of Performance, Reliability and Security for Share-Data, Object-Oriented and Pipe and Filter Styles
H. Banki H. BankiA desirable software application should be able to provide the quality attributes required by the system, as well as the functional requirements. Software architecture styles have a significant effect on the quality attributes of the designed software as well as its spe MoreA desirable software application should be able to provide the quality attributes required by the system, as well as the functional requirements. Software architecture styles have a significant effect on the quality attributes of the designed software as well as its specification and decomposition.) The quantity evaluation and analysis of this effectiveness rate result in the selection of the most appropriate style for designing the architecture. In this paper, a method based on the Colored Petri Net is proposed to quantitatively evaluate three candidate attributes of the software architectural styles called the quality attributes, performance, reliability, and security in three candidate styles named shared-data, object-oriented, and pipe-and-filter software architectural styles. This method has not limitations of the previous-ones in evaluating the quality attributes. In this method, the candidate styles are firstly modeled by using the Colored Petri Net; then, considering the evaluation rules, CPN tools are used to analyze the networks and calculate the exact value of the candidate attributes. At the end, the best candidate style is chosen for implementation through ranking the styles in terms of the satisfaction level of the candidate quality attributes. To present a practical representation using the proposed methodology, the ATM system has been chosen as a case study. Manuscript profile -
Open Access Article
11 - A Lightweight Intrusion Detection System Based on Two-Level Trust for Wireless Sensor Networks
M. sadeghizade O. R. MarouziWireless sensor networks (WSNs) are one of the useful and attractive technologies that have received much attention in recent years. These networks have been used in a variety of applications, due to their ease of use and inexpensive deployment. Due to the criticality o MoreWireless sensor networks (WSNs) are one of the useful and attractive technologies that have received much attention in recent years. These networks have been used in a variety of applications, due to their ease of use and inexpensive deployment. Due to the criticality of most applications of these networks, security is considered as one of the essential parameters of the quality of service (QoS), and thus Intrusion Detection System (IDS) is considered as a fundamental requirement for security in these networks. This paper provides a trust-based IDS to protect the WSN against all network layer and routing attacks based on the features extracted from them. Through simulations, the proposed IDS has been evaluated with all performance criteria. The results show that the proposed IDS, in comparison with existing works, which often focuses on a specific attack, covers all network layer and routing attacks in WSNs, and also, due to high detection accuracy, low false alarms rate, and low energy consumption is considered as a desirable and lightweight IDS for WSNs. Manuscript profile -
Open Access Article
12 - Comparison of the Effectiveness and Efficiency of Three Methods: Electronic training, Electronic Performance Support System, and Combination of Electronic Training with Electronic Performance Support System to Improve Employee Performance (Case Study: Employees of Day Insurance Company)
Marjan Zahedian Hashem Fardanesh Javad Hatami kiumars taghipourThe purpose of the present study was to measure the effectiveness and efficiency of three methods: training, electronic support system, the combination of training and electronic performance support system, for improving performance and increasing employee efficiency. T MoreThe purpose of the present study was to measure the effectiveness and efficiency of three methods: training, electronic support system, the combination of training and electronic performance support system, for improving performance and increasing employee efficiency. The research method was semi-experimental, and the post-test with the control group was used to measure the performance and efficiency of the staff. The statistical population in this research was 570 insurance agents of the Day insurance company throughout the country. Among them, 60 insurance agents were selected by cluster sampling method and randomly divided into three groups: "Electronic training," "Electronic Performance Support System" And "Combination of electronic training and electronic performance support system.” A questionnaire was designed with the help of subject specialists to measure the actual performance of the participants. Content validity was used to determine the validity of the questionnaire, and the reliability of the sculptors (correlation coefficient was 0.79) was used to assess the reliability of the questionnaire. To measure the efficiency (amount of time spent completing the job task), the arrival time of the insurance agents to the Electronic Performance Support System and the moment of their departure from this environment is estimated. The collected data were analyzed using multivariate analysis of variance and post hoc tests. The results of the data analysis showed that the insurance agents who participated in the "Combination of Electronic training and the Electronic Performance Support System" group had better performance compared to the insurance agents in the other two groups, and they did their job activity in a shorter time. Manuscript profile -
Open Access Article
13 - Studying the interaction methods of the central bank supervision department with the audit and internal inspection units of banks and evaluating its impact on the efficiency and effectiveness of banking supervision
seyed mojtaba hasani shahi sara Seyed Mohammad Reza Raiszadeh Ali FallahThe aim of this study was to investigate the interactions of the central bank supervision department with the audit and internal inspection units of banks and to evaluate its impact on the efficiency and effectiveness of banking supervision. This research is applied in MoreThe aim of this study was to investigate the interactions of the central bank supervision department with the audit and internal inspection units of banks and to evaluate its impact on the efficiency and effectiveness of banking supervision. This research is applied in terms of purpose, and in terms of descriptive-survey approach. In this study, all senior managers of bank branches in Tehran were considered as a statistical population of 150 people. According to Krejcie and Morgan's table, a society of this size required at least 108 statistical samples. In this study, simple random sampling method was used to select statistical samples. The main tool used in this study was a questionnaire based on experts' opinions which contained 22 items. In this questionnaire, the answers were designed based on a five-point Likert scale (from strongly disagree to strongly agree). The validity and reliability of this questionnaire were evaluated and confirmed in different ways. After distributing and collecting questionnaires and extracting data, descriptive and inferential analyzes through SPSS and LISREL software were on the agenda. In this process, descriptive analyzes were performed on the research variables, KMO test, Kolmograph-Smirnov test, confirmatory factor analysis and path analysis. Finally, the results showed that the interaction of the central bank supervision department with the internal audit units of banks has a strong and significant positive effect on the efficiency and effectiveness of banking supervision. Manuscript profile -
Open Access Article
14 - Regional Power-Aware Routing for Partially-Connected 3D Network-on-Chip
Mitra Moalemnia HadiShahriar ShahhoseiniNetwork-on-chip provides an efficient communication platform for Systems-on-chip. The static power consumption is an important issue in these networks. Switching the power supply on virtual channels during idle time is a common method for reducing the network power cons MoreNetwork-on-chip provides an efficient communication platform for Systems-on-chip. The static power consumption is an important issue in these networks. Switching the power supply on virtual channels during idle time is a common method for reducing the network power consumption. The traffic load at the network level and non-continuous idle period of virtual channel have caused the sources to be switched on and off continuously, which leads to increase in power consumption and other overheads. This will be more important, in partially connected 3D chip networks in which a limited number of vertical connections has been used. In this paper, a routing algorithm is proposed who employs an appropriate policy for packet distribution, and reduces the load distribution in the network and creates a continuous idle time for the resources, result in suitable power management in the network. In this routing scheme the network is divided to north and south region and some restriction applied in usage of elevators in each region and try to increase the utilization of the used resources as well as the ideal time of low traffic paths. The simulation results, derived by BookSim, show the proposed method improve the network power consumption by 18% to 30% comparing previous algorithms, and the network delay has been reduced by 32%. Manuscript profile -
Open Access Article
15 - بررسی رابطه بین کارایی هیات مدیره و حق الزحمه حسابرسی در شرکت های سرمایه گذاری پذیرفته شده در بورس اوراق بهادار تهران
خدیجه رئیسیان پروریThe purpose of this study is to investigate the relationship between the efficiency of the company's board of directors and the company's audit costs. The present study is post-event in terms of descriptive research method and applied in terms of purpose because its res MoreThe purpose of this study is to investigate the relationship between the efficiency of the company's board of directors and the company's audit costs. The present study is post-event in terms of descriptive research method and applied in terms of purpose because its results will be used by beneficiaries. The statistical population of this study is all investment, financial and insurance companies active in the Tehran Stock Exchange with 40 companies, which has formed a sample size of 33 companies through the systematic elimination method. In order to collect the required financial information, it was extracted through financial statements during the 5-year period of 1397-1393 by the data panel method, which was analyzed by SPSS software and Ivyuz. Various statistical tests, including regression, have been used for inferential analysis of variables for statistical analysis of data. Three hypotheses have been examined and the results show that there is a positive and significant relationship between the size of the board of directors, the number of independent board members and the efficiency of the audit committee and audit fees. And research hypotheses were confirmed. Manuscript profile -
Open Access Article
16 - Investigating the Efficiency of Iran's Tourism Industry in Different Climates
maryam asadpour kordi hamid amirnejad seyed hadi naseri ojaki somayeh shirzadi laskukalayehAs a service industry that has significantly expanded in recent years, tourism plays an important role in developing many countries, including Iran, which enjoys various unique historical, religious, cultural, and natural sites and a four-season climate. Therefore, this MoreAs a service industry that has significantly expanded in recent years, tourism plays an important role in developing many countries, including Iran, which enjoys various unique historical, religious, cultural, and natural sites and a four-season climate. Therefore, this study set out to examine the efficiency of Iran's tourism industry using tourism data regarding its 31 provinces during the years 2011 to 2017, including the information concerning the budget allocated to the tourism sector, the number of accommodation places, the number of tourist attraction sites in each province, and the number of domestic and foreign tourists. To this end, Fuzzy Data Envelopment Analysis was used to analyze the collected data. The study's results showed that Ardabil, Tehran, Kohkiluyeh Boyer-Ahmad, and Gilan had had the efficiency in terms of tourism throughout the study period, with their average efficiency as a primary criterion for assessing the efficiency of the country's tourism industry reported as average. Moreover, the analysis of the tourism industry's efficiency in different climates suggested that the highest efficiency belonged to the temperate and humid climate, and the lowest one was related to the hot and dry climate. Therefore, it seems that facilitating transportation infrastructure and providing welfare facilities, especially in provinces with low efficiency, could help use the potentials of different provinces to develop the country's tourism industry. Manuscript profile -
Open Access Article
17 - Obstacles to achieving inclusive growth due to the inefficiency of the technical-executive system of the country
abolfazl mirghasemiThe purpose of the technical and executive system of the country is to establish an integrated military, to create investment plans and projects, within the framework of the economic, social and cultural development plans of the Islamic Republic of Iran, taking into acc MoreThe purpose of the technical and executive system of the country is to establish an integrated military, to create investment plans and projects, within the framework of the economic, social and cultural development plans of the Islamic Republic of Iran, taking into account the increase of efficiency and effectiveness of plans and projects. Investment with a result-oriented approach, with the ability to follow and evaluate and based on the quality management system, is appropriate to the economic, social, climatic and environmental conditions of the country. Inclusive growth seeks to achieve goals and aspirations that bring about justice, equal opportunities for all, the preservation of the environment, and greater attention to the poor and disadvantaged in society. In other words, in the shadow of good governance, a principled and stable relationship between the economic, social and environmental conditions of each society should be provided. At the same time, the exploitation of natural resources and the environment should not lead to the destruction of resources or the unfair distribution of wealth. Although the principles and foundations of the technical-executive system approved in 2006 are based on a progressive approach and compatible with world literature and sustainable development, but unfortunately in practice and implementation, it has distanced itself from the ideal goals and problems in the areas of employer, consulting, There are supervisors and contractors described in this article. It is hoped that by reviewing the bylaws and instructions, as well as preparing and implementing an appropriate action plan to implement the technical-executive system, formulate and complete the required technical criteria and standards, as well as modify methods and workflow, these problems have been resolved and efficiency and effectiveness Increase the system to provide the basis for achieving inclusive growth, achieving greater social justice, reducing discrimination and abuse, preventing rent-seeking, providing opportunities for all, and paying special attention to the poor and deprived. Manuscript profile -
Open Access Article
18 - Reviewing and analyzing the content of separate and integrated curriculum in Iranian schools
محمد ایلخانی پورBuilding information modeling as an efficient tool to optimize, manage and plan construction projects has created a revolution in the construction industry in recent years. But the slow expansion of this powerful technology in third world countries, including Iran, has MoreBuilding information modeling as an efficient tool to optimize, manage and plan construction projects has created a revolution in the construction industry in recent years. But the slow expansion of this powerful technology in third world countries, including Iran, has caused many concerns in this field and it has many problems and obstacles in front of it, and with the passage of several years since the introduction of BIM in it, an effective action to inform and introduce This process has not been done by the government to the country's construction industry, as well as the evaluation and creation of grounds for its implementation and application. Considering the importance of the topic, the purpose of the research was to investigate the reasons for the inefficiency and use of building information modeling (BIM) in Shiraz city. The research method was applied and of the descriptive-correlation type. In this research, using library studies and interviews with experts, the reasons for the ineffectiveness of building information modeling were identified. Then, using the DEMATEL technique, the internal relationship between the identified components was determined. Identified parameters were calculated by applying the network analysis method (ANP) in the form of pairwise comparisons and the weight of each factor, which shows their influence, was calculated in the Superdesign software. The results regarding determining the weight of the criteria and prioritizing the effective factors indicate that among the factors, financial criterion with a weight of 0.31, technical criterion with a weight of 0.38, human resources criterion with a weight of 0.13, and time criterion with a weight of 0.19 respectively have They were the highest ranks. Manuscript profile -
Open Access Article
19 - High Performance Computing: Next Generation Requirements and Research Axes
ehsan arianyan MohammadMahdi Esnaashari Fatemeh Ehsani Boshla Shaghayeghsadat Hossieni bayan Masoud Dehyadegari Behnam SamadiNowadays, increasing the processing power of supercomputers is a worldwide race. This race, signifies the importance of supercomputers in the current era. They are engines of improving technology in almost all scientific areas, such as computational biology, earth scien MoreNowadays, increasing the processing power of supercomputers is a worldwide race. This race, signifies the importance of supercomputers in the current era. They are engines of improving technology in almost all scientific areas, such as computational biology, earth sciences, cosmology, fluid dynamics, and plasma modeling, to name a few. Next generation of supercomputers can be divided into two broad categories: 1) emerging technologies such as neuromorphic and quantum computing and 2) Exascala computing. Emerging technologies will be the future of supercomputing, however, not in a very recent future. Therefore, in this paper, we have focused on Exascale computing, and have tried to provide a comprehensive overview of the main requirements for this technology to be achieved and become available. Requirements have been overviewed from different aspects; hardware, software, artificial intelligence, and cloud computing. In addition, we have attempted to provide a complete taxonomy of hot research topics within this area. Manuscript profile -
Open Access Article
20 - LSBB Voltage Level Shifter based on Body Biasing
Reza Darvish khalilabadi amir bavafa toosiDesigners of modern digital and analog systems have been using multiple voltage levels in one circuit to increase performance. To convert voltage levels in high-performance circuits, it is necessary to use voltage level shifter (LS) circuits with high speed and low powe MoreDesigners of modern digital and analog systems have been using multiple voltage levels in one circuit to increase performance. To convert voltage levels in high-performance circuits, it is necessary to use voltage level shifter (LS) circuits with high speed and low power consumption. In this article, a high-performance LS circuit called LSBB (Level Shifter based on Body Biasing) is presented. LSBB consists of three parts: body biasing, current mirror circuit, and pull-up and pull-down circuit. The main idea of this design is to use the biasing circuit to depend on the base of the body of the transistors of the input stages to the VDDL voltage. This dependence leads to changes in the threshold voltage and as a result changes in the delay and power consumption to increase the performance of the circuit. Implementation in 180 nm TSMC technology and simulation with VDDL equal to 0.4 V, VDDH equal to 1.8 V and input frequency 1 MHz indicates the correct operation and high-performance of the proposed circuit, the delay values are 21.9 nS, the power consumption is 129 nW and the PDP equal to 2825 nW*nS confirms the high-performance of LSBB. Manuscript profile -
Open Access Article
21 - The Effect of Social Trust on Organizational Efficiency: Study Employees of 15th District Municipality
Akhtar ShiriThe present study was conducted to investigate of social trust in the efficiency of employees and managers of municipalities in the 15th district of Tehran. Applied survey method used to data collection. The questionnaire was indexed based on Giddens' theory and four ty MoreThe present study was conducted to investigate of social trust in the efficiency of employees and managers of municipalities in the 15th district of Tehran. Applied survey method used to data collection. The questionnaire was indexed based on Giddens' theory and four types of basic, interpersonal, abstract and generalized social trust. The statistical population based on the statistics provided by Tehran Municipality was 982 people (856 employees, 118 managers and 8 deputies) and the sample size was estimated to be 276 people using Cochran's formula and 302 questionnaires were completed taking into account the sample error. The results showed that 26% of the changes in the efficiency of employees and municipal managers can be explained by the social trust variable. Apart from interpersonal trust, other types of trust directly explained the dependent variable. In the study of relationships, it was observed that religiosity has no significant relationship with employee efficiency is inversely related to managers' efficiency. All four types of social trust showed a significant relationship with the performance of employees and managers that the strongest relationship was related to generalized trust and the weakest relationship was related to interpersonal trust. Manuscript profile -
Open Access Article
22 - Assessment of organization efficiency using an integrated model of EFQM-network data envelopment analysis
Alireza Khosravi Mohammad Fallah Esmaeil NajafiEstablishment of the modern managerial systems is one of the most important steps for the excellence of organizations. The European Foundation of Quality Management (EFQM) is one of the technics that has started from Europe during the two recent decades and nowadays man MoreEstablishment of the modern managerial systems is one of the most important steps for the excellence of organizations. The European Foundation of Quality Management (EFQM) is one of the technics that has started from Europe during the two recent decades and nowadays many organizations are in the process of implementing this model with- in their managerial domain. Data Envelopment Analysis (DEA) is a known nonparametric tool for evaluating the organization’s efficiency. In addition to having the capability to measure the total efficiency of a system, network DEA is able to calculate the efficiency of system components. Since EFQM can be considered as a multi-stage system, existence of network DEA along with it can improve the analysis. In this paper, an integrated model has been suggested based on EFQM and Network DEA for assessing the organization’s operation. For this purpose, at first the EFQM has been considered as a ‘four-stage system’ including leadership (the first stage), activities related to employees, policy, strategy and partnership (the second stage), processes (the third stage), and results (the fourth stage). Then considering 32 sub-criteria in EFQM, input and output variables have been determined for each one of the four stage s and on this basis math form for Network DEA model has been developed for this 4-satge system. Manuscript profile
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