European Journal of Scientific Research
Volume 112 No 2
On-Time Power System Stabilization of Multi-Machine Power System by using Optimal Fuzzy-Pid Controller
Hassan Shokouhandeh, Alireza Rezazadeh, Mostafa Sedighizadeh and Mahdi Maaref
Study and discussion in the field of designing different kinds of stabilizers constitutes one of the dynamic research areas concerning power systems. In this study, a four-machine system is used and for damping low frequency oscillation, Fuzzy-PID controller has been used. The aim of this study is to design Fuzzy-PID stabilizer by using Hybrid Big Bang-Big Crunch (HBB-BC) algorithm. For having a comparison, a lead-lag power system stabilizer (PSS) was used that its’ parameters has been set by PSO algorithm. Simulation results were compared in three scenarios and by applying three-phase fault in one of the line between two areas. The results revealed good efficiency of fuzzy-PID controller in stabilization of power system in different work conditions.
Keywords: Fuzzy-PID, power system stabilizer, hybrid big bang big crunch algorithm, multi-machine power system, low frequency oscillation
Evaluation of the Cost and Effect of Industrial Accidents
T.A. Yusuf, S.O. Ismaila, S.I. Kuye and O.D. Samuel
Accidents are typical phenomena in production industries. They distort the health of the factory workers and thus, the efficiency of these industries. This study was aimed to evaluate the causes and effect of industrial accidents. The data used were obtained from the accident reports from year 2002-2006 in the selected manufacturing industries in Nigeria together with the questionnaires administered to their factory workers. An average of twenty-four numbers of minor accidents and one major accident were discovered annually. Negligence of the workers was found a significant cause of accident (P< 0.001). It was also found significant that accidents were rarely (less frequent than yearly) investigated (P< 0.001). There was a significant relationship between causes of accidents and frequency of accident investigation (P< 0.001). About one hundred and twenty-five thousand naira (N125, 000.00) was expended on the treatment of injured employees while about one thousand, two hundred and forty-five (1,245) man-hours of production were lost. Annually, Accident Severity Rate (ASR) was 0.1 and Accident Frequent Rate (AFR) was 0.01, both per millions man-hours lost. Injury to personnel was the most common effect of accidents found with a Case Fatality Rate (CFR) of 58.3 percent.
Keywords: Industrial Accidents, manufacturing, Injury, Accident Severity Rate, Accident Fatality Rate.
Human Resource Management Strategy Aligning with Business Strategy: The Impact on Human Resource Performance and Organizational Performance
Roshanak Azizi, Ali Safari and Ali Rashidipour
Nowadays, the role of human resource management (HRM) has changed from workforce recruitment to organization’s strategic partner. So, HR planning should not be neglected by strategic business planning. In other words, HR development should mutually influence the strategic plans and be influenced by them. Thus, creating coordination and symmetry between HR strategy and the overall strategy of the organization has been mentioned as one of the most important effective components to improve the performance and productivity of the organizations.
The purpose of the present research is specifying the impact of HRM alignment with the business strategy on HR performance and organizational performance. The managers of the top 100 privatized companies accepted in Stock Exchange comprise the statistical population of the research. Questionnaires are used as the data collection tool done by 68 companies. In the end, 204 questionnaires were retrieved,. Hypotheses tests of the research are correlation, cluster analysis, regression analysis, and structural equation modeling tests. The results of hypotheses testing revealed a significant alignment between HR and business strategies in the successful private companies in securities exchange organization. This alignment has a meaningful impact on HR performance and organizational performance. HR performance, in turn, has a meaningful impact on the overall performance of the organization.
Keywords: Alignment, Human resources strategy, Business strategy, Human resources performance, Organizational performance
Low Power Design Technique of Flash Type Analog to Digital Converter Based Operational Amplifier
P. Rajeswari, R. Ramesh and A.R. Aswatha
This paper proposed with the low power easy portable technique of an ADC. In exiting system we are using the comparator circuit adding with the ADC. In the proposed system reduced from a comparator and adding with an operational amplifier from analog signal converted into digital signal. The Operational Amplifier device performs with the common math operations used included integration and differentiation. The output of the digital value displayed binary functions of a LED applied. So low power applied in this process the output will be high efficiently. The range of input will be 1.2 in DC voltage applied so low power consumption required. So in this proposed technique the 50 percent power saved and least cost of components and devices required. In this system the flash ADC using the logic gates to give the binary values displayed.
Keywords: ADC, Operational amplifier, Clock pulse, LED, Resistance, ex-or gate
Affection of Mobile Banking for Iintroducing Banking Services: Case Study of EN Bank
Mobile bank or banking mobile depends on lots of factors which we analyze to reach mobile banking, providing banking needs freely makes us more sufficient. In this search tow factors are mentioned about sufficiency which they are Effectiveness and Quality of servicing and in details it was investigated bout the speed, time, security and simplification of affairs and the other services in the statistic society such Tehran Eghtesade Novin branches. For gathering the information concerning to a vast and uncountable samples we refer to 320 samples during branches which 308 samples were done. The questionnaire of this search contains 31 questions and the rate of alpha of this search was 85% which it has high confidence. After analyzing the thesis were examined by T student the results of this search would be done by 99% and at the end some suggestions were given to statistic society.
Keywords: Mobile bank, Bank services, Effectiveness, Bank services quality.
The Effects of Sivand Dam Impoundment on the Plain of Arsanjan using System Dynamics
Mohammad Hadi Namazi, Morteza Hasanshahi and Abdolrahim Salavitabar
Today, the comprehensive management of water resources, especially in areas facing limited water resources is a necessary and inevitable measure. Accordingly, managers and policy makers can be assisted the use of management tools. System dynamics
is a management tool that by simulating real-world conditions is able to disclose the consequences of decisions to be taken. The present study has developed water resources model for the basin of Arsanjan plain (located in Fars Province, Iran) to evaluate the factors affecting water sources and how they are used. Finally, the simulation results presented based on water supply management scenario (of Sivand Dam impoundment) in the groundwater sources suggest that the optimal policy for water supply management (of Sivand Dam impoundment) will have a positive effect on the groundwater resources
Keywords: System dynamics, water resources management, simulation, water supply, Islamic Azad University if Arsanjan
Spiritual Intelligence and its Relationship with Organizational Commitment and Organizational Citizenship Behavior in the Birjand Gas Company
Fezzeh Deianati, Fereshteh Mostafavi Rad and Aminollah Fazel
In today’s organizations today, the importance of human capital and special mental faculties are taken into consideration. Spiritual intelligence which refers to a spiritual vision is one of the unique features that can affect people's working lives. Accordingly, the aim of the present study was to investigate the relationship between spiritual intelligence, organizational citizenship behavior, and organizational commitment. To do so a descriptive correlational research method was used. The sample under study included 123 employees working in the Birjand Gas Company. The reliability and validity of the instruments used in this study to collect data (Organizational Citizenship Behavior Questionnaire, Organizational Commitment Questionnaire, and Spiritual Intelligence) were at an acceptable level. The performed by stepwise multiple regression (in SPSS 18 Software) was used to perform the data analysis. The results of the study suggested that there was a significant and positive relationship between the dimensions of spiritual intelligence and organizational commitment. In addition, the awareness of origins of life and spirituality was significantly and positively correlated to conscientiousness. Among the dimensions of spiritual intelligence, the awareness of origins of life was a predictor of organizational commitment, conscientiousness, and humility. Therefore, the enhancement of spiritual and meaning-oriented visions among employees will lead to the improvement of positive employment outcomes including commitment and citizenship behavior.
Keywords: Spiritual intelligence, organizational commitment, organizational citizenship behavior
Enhanced Methodology for Distributed Assessment Tacit Knowledge Extraction (DATKE)
The advancement of information and communication technologies made a prompt and important impact on teaching, learning and educational assessment. Numerous assessment software and test authoring tools have been developed used by teacher for assessment. However, when instructors do assessments, still the possibility exists of neglecting the core concepts in the curriculum. The required time also minimized due to common use of educational assessment tools in order to construct a new assessment in educational organization. The most critical issue is that how instructors imitate the significance of each topic or concept inside test sheet. Assessment construction is an experience-based knowledge and implicit in its nature. The objective of this paper is to analyze and evaluate the characteristics of tacit knowledge and propose a distributed assessment tacit knowledge extraction (DATKE) methodology. The (DATKE) methodology captures the assessment construction knowledge from different assessments in distributed educational organizations. In this paper a distributed environment has been selected for experiment in order to minimize the required time and to preserve the diversity and privacy required for an educational organization.
Keywords: Tacit Knowledge, knowledge Management, Extraction Methodology, Educational Assessment, Distributed Assessments
Transition Optimization in Fault Free Memory Application using Bus-Align Mode
Harikishore Kakarla, Madhavi Latha M and Habibulla Khan
With the increase in memory density, the probability of faults occurring in such devices is increasing. Most of the fault free coding developed is focused to resolve the issue of data consistency in memory application. During data transition from source to memory storage the information’s bits are encoded and stored. The process of encoding is performed to preserve the integrity of the coding bits. However the sequences used in such coding are highly variant which generates a higher probability of bit sequence faults in information transition. To avoid these faults a Bus Align Mode of memory coding is defined. This coding result in effective processing for fault free memory application.
Keywords: Memory Faults, Transition Faults, Bus Align Mode, Bit-Streaming.
Relationship between Performance Appraisal and Customer Satisfaction in Branch of Mellat Bank in Mazandaran Province
Mansoure Gholami Azizi, Batoul Moghassemi, Mohammad Gholami Azizi and Asghar Mahdloui
In a comparative and complex environment of business in this present word, the success of economical institution is bound to continuous improvement, this important process can be achieved through setting goals, planning and executing the programs and the end appraisal of performances, so the main objective of this research is on appraisal of performances indices in Mellat bank of Mazandaran province on customer satisfaction. In this regard a questionnaire with 36 questions has been designed and the methodology of research used for this study was descriptive. The sample of the study consists of eight Mellat bank experts who were 35 responders. Data collection was done by a questionnaire. The validity and reliability of this study has been tested with the used alpha Cronbach statistical method and each item of the questionnaire had been analyzed by AHP FUZZY and ranked accordingly. The finding of this research shows that personnel and customer factors received the greatest significance and the financial and management factor are ranked lower with less significance.
Keywords: Performance appraisal, financial frame work, customer, personnel factor, financial related, Mellat bank, AHP procedure
Analytical Solution for Flow and Concentration Boundary Layer of an Unsteady Three – Dimensional Stretching Surface
The effect of unsteady three dimensional flows over a stretching surface is studied. The governing boundary layer equations are transformed to ordinary differential equations. These equations are solved analytically using the optimal modified Homotopy Asymptotic method in order to get a closed form solution for the dimensionless functions f,g and ?? The velocity and concentration profiles are plotted and discussed in details for various values of the different embedded flow parameters.
Keywords: Optimal homotopy asymptotic method, stretching surface, boundary layer concentration, three dimensional flows.
The Relation between Coaches' Decision-Making Styles to the Rate of Satisfaction of Iran Basketball of Preferred League Players
Vali Nowzari, Mohammad Hassan Boostani, Younes Mohammad Zadeh, Sara Azizi, Hengameh Ghasemi Dehkordi and Masoumeh Habibi
The research has been performed with the aim of considering the relation between coaches' decision-making styles with the rate of satisfaction of preferred league players of Iran basketball in the year 2011-2012. The method of doing research is of the correlation type. The statistical sample in the research included 201 athletes. The tool of in use include decision – making style questionnaire of Scat and Borous (1995) and Athletes Satisfaction questionnaire of Cheladorai and Rimer (1998) which tool reliability was confirmed by cronbach alpha coefficient and its validity in the method of factor analysis. For analyzing data, correlation coefficient and regression in step-by-step method were used. The findings showed that: Perceptual, intellectual, and dependency decision-making style, on satisfaction directly and positively affect the performance of athletes and teams. Avoiding, intellectual, and dependency decision-making style, on satisfaction directly and positively affect the performance of individual athletes. Perceptual, dependency, and avoiding decision-making style, on satisfaction directly and positively affect the behavior of individual athletes. Intellectual, perceptual, dependency, avoiding and sudden decision-making style as a direct and positive effect on athletes in training are satisfied.
Keywords: Decision-Making Styles, Athletes Satisfaction, Basketball
The Relationship of Amount of Weekly Practice, Body Mass Index, Championship History and Age with Athletes' Emotional Intelligence
Fatemeh Pasand, Esmail Soltani and Bezad Bazgir
Nowadays, emotional intelligence has been considered by researchers as a new topic in sport psychology. The results of studies have shown the effect of emotional intelligence on different aspects of sport. The purpose of this study was relationship between the amount of weekly practice, body mass index, championship history and age with emotional intelligence. This research is a kind of correlation-descriptive study. Statistical population is comprised all of men and women athletes of selected teams in Shiraz city that among them, 200 athletes (95 man & 105 women) with the age range of 18- 52 were randomly selected. For gathering data, Bar- on emotional intelligence questionnaire was used which its validity and reliability have been confirmed. For analyzing of information, Pearson correlation and simultaneous regression were used. Results showed that there is a significant relationship between emotional intelligence and most of its components (p?0/01-0/05). Also, in the level of (p?0/05), there was a significant relationship between amount of weekly practice and self-actualization and assertiveness. There wasn't found any relationship between emotional intelligence and its components with BMI and championship history of athletes. Simultaneous regression showed that only age and amount of weekly practice variables can predict emotional intelligence. Overall, results show that emotional intelligence scores is influenced by different factors such as weekly practice and athlete's age.
Keywords: Emotional Intelligence, Amounts of Weekly Practice, Body Mass Index, Championship History, Age
Economic Clusters Efficiency Mathematical Evaluation
In this study we investigate the properties the concept of innovative clusters. We discuss the problems of cluster efficiency evaluation. The work ends with a methodological proposal of formal mathematical model for cluster evaluation, based on probability hypothesis verification.
Our result confirms the previously used propositions.
Keywords: Cluster Evaluation, Formal Mathematical Models, Hypothesis Verification.
Development of Fuzzy Logic Controller for Negative Output Switched Capacitor Elementary Luo Converter - Simulation and Experimental Evaluation
A. Joseph Basanth and S.P. Natarajan
This paper deals with the application of fuzzy control theory for the closed loop operation of negative output switched capacitor elementary Luo converter, which is a newly developed DC-DC converter. Negative output Luo converter provides negative output voltage for positive input voltage using voltage lift technique. Switched Capacitor can be integrated into power IC chip, combining both switched-capacitor and voltage lift (SC) techniques. The objective of this work is to develop PI and fuzzy logic controllers for negative output switched capacitor elementary Luo converters to ensure constant load voltage under supply and load disturbances. The PI and fuzzy controllers are evaluated by computer simulation as well as experimental measurements of the closed loop performance of the negative output Luo elementary converter under line and load disturbances. The results from MATLAB simulation and TMS320F2407 DSP based hardware implementation show that FLC performs effectively for the chosen converter.
Keywords: Fuzzy logic controller, PI controller, SC Luo converter,