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Showing 3 results for Hamidizadeh


Volume 1, Issue 4 (12-2012)
Abstract

The purpose of this study is Understanding status and relationship between empowerment and contextual performance with job satisfaction of employees of Islamic Azad University Dezful Branch. Empowerment based on Bowen and Lawler of model (1992), contextual performance based on Van Scotter and Motowidlow of model (1994) and job satisfication based on universal model of single question measured. Proportion with purpose of study, two main hypothesizes and ten secondary hypothesizes codified. Statistical social of this study was 355 personals of this university branch. Tools used in this study to collect data was questionnaire. This questionnaire has three sections that one section is job satisfication based on universal model of single question, second section is empowerment based on Bowen and Lawler of model (1992) in four dimensions which includes information sharing, trust, training and reward and third section is contextual performance based on Van Scotter and Motowidlow of model (1994), which includes two dimensions of facilitation of interpersonal relationships and dedication work. The Cronbach's alpha reliability coefficient was approved by them. Meaningful relationship and coefficient correlation between empowerment and performance and each dimensions of their with job satisfication were investigated. Then structural equation model was used to test the theoretical model and the direct and indirect effects of these factors on job satisfaction of employees were found. Results of tests impress that each of components empowerment and contextual performance with job satisfication have meaningful relationship and had seen among of dimensions of their only training with job satisfication has not meaningful relationship.
Mehdi Soleymani, Mahmoud Hamidizadeh, Sirous Sayahi, Hassan Moradzadeh, Mohsen Rahmani,
Volume 14, Issue 14 (Second Special Issue 2015)
Abstract

Control of seismic shake table in order to track the predefined earthquake profile is a key concern in design of seismic shake tables. This paper proposes a vision-based real time displacement measurement system using image processing techniques to control a laboratory-scale seismic shake table. The shake table is controlled via a fuzzy-supervisory controller, an inner PID loop and a Fuzzy outer one, whose feedback is provided by the vision-based measurement system. To minimize tracking errors, the fuzzy controller uses displacement and acceleration responses as its feedbacks. For this purpose, a camera and an image processing application are utilized to measure the motions directly in real time. Results are sent to a host PC through a network as the controller feedback. Proposed system performance is compared with an alternative system which utilizes a linear encoder as displacement sensor and controller feedback. Test results prove effectiveness of the proposed fuzzy system in cutting back the tracking errors. In addition, the vision-based system uses a very low cost camera to measure the displacement directly. It has appropriate accuracy, works in real time, and doesn't need any contact with the table, comparing to the encoder version.

Volume 18, Issue 2 (7-2014)
Abstract

In today’s dynamic and competitive markets, industries and services require the methods, which can overcome the environmental challenges, and provide non-wasting production and services to the customers. Such tools can be achieved through pure production method. Therefore, by studying the literature review of pure production models in the supply chain, 14 major identification factors were identified in the form of a questionnaire presented to the experts and managers of automobile industry supply chain in order to specify the relationship and sequence of these factors through ISM method, and then confirm using path analysis technique. In this regard, these factors were located at five levels. The first level includes wasting and contentment of client; the second level is related to source control and continuous improvement; the third one involves the structure of material flow, supplying development and selection; the fourth level consists of educating and empowering, contacting with client and supplier and information flow structure; and the fifth level includes management behavior, methods and staffskills. The order of factors has helped the managers that if they implement these factors for the improvement of production methods and approaching to a pure production, from which factor they would initiate.    

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