ahmad rajabi; Mohammad Hashem Moosavi-Haghighi Moosavi-Haghighi
Volume 17, Issue 3 , September 2013, , Pages 87-111
Abstract
Appraisal and calculate productivity of the industrial groups with applying of system dynamics approach in 1404 horizon. In this paper, industrial productivity was calculated in 1404 horizon with usage of system dynamics model. For this purpose, with regard to behavior of the effective variables and ...
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Appraisal and calculate productivity of the industrial groups with applying of system dynamics approach in 1404 horizon. In this paper, industrial productivity was calculated in 1404 horizon with usage of system dynamics model. For this purpose, with regard to behavior of the effective variables and data of 1380 to 1388 years, the productivity model was designed and simulated.The result showed industrial productivity from 1380 to 1388 years always decreasing and this trend because increasing input production, will be continuing from 1389 to 1396 years, but from 1396 to 1404 horizon this trend will be increased. It should be noted that the productivity of the manufacturing process, labor productivity is lower fluctuation from than capital and energy. With regard to role of industrial productivity in value added, the appraisal of policy changes showed that increase of 1% annual productivity rate in industrial sector in 1404 with ratio to bas year, lead to increasing 3.5%.value added
Mansour Moemeni; Behroz Zarei; Majid Esmaelian
Volume 10, Issue 4 , March 2007, , Pages 211-230
Abstract
The purpose of this study is to explain the ability of the computer simulation methodology to improve productivity of a production system. At the beginning, it demonstrates how simulation can be employed in productivity analysis. In this regard, a case study approach was used and the proposal methodology ...
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The purpose of this study is to explain the ability of the computer simulation methodology to improve productivity of a production system. At the beginning, it demonstrates how simulation can be employed in productivity analysis. In this regard, a case study approach was used and the proposal methodology was implemented to represent the simulation capability to enhance the productivity in the case study.
An explanation of the existing system was presented and the corresponding model called AS-IS model was designed, then the model was runned and the output was analyzed. The results of the study showed the bottlenecks and performance measures of the existing system and the initiated two models according to the simulation output, called TO-BE models.
The results obtained from the simulation experiment showed the performance measure in the TO-BE models. The manager of the company, has selected the TO-BE2 model as the best alternative based on the economical and others measure.
Kourosh Parvizian; Mahmod Sarami
Volume 10, Issue 20 , June 2006, , Pages 103-146
Abstract
The increasing trend of manpower and financial investments have made information technology productivity more important than before. Researches show various results of information technology productivity. While some of the researches attribute the improvement and increase of productivity and profitability ...
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The increasing trend of manpower and financial investments have made information technology productivity more important than before. Researches show various results of information technology productivity. While some of the researches attribute the improvement and increase of productivity and profitability to the information technology, others consider the real profits of information technology disappointing and even pretend that information technology has not been able to increase productivity and create economic advantage.
The present research covers the information technology productivity at the economy level (industry level) and has a different assessment of information technology productivity criteria through studying whole economic guidelines as well as industrial guidelines. The results of the field research and surveying the records and valid statistics made it clear that although there is not a meaning ful disparity between manpower and financial investments, there is a gap between existing information technology productivity and the prospective one. In this article, besides stating the study criteria and presenting hypotheses and research findings, the different criteria of assessing information technology productivity have been taken into consideration.
Mohammad Hossein Pourkazemi; Gholamreza Shakeri Navaei
Volume 8, Issue 20 , December 2004, , Pages 37-63
Abstract
At the present time that our country is passing through a critical period, the role of the administrative, industrial and educational organizations is inevitable in the economic operation and development of the country. But the fact whether all of them have been successful in making an effort to obtain ...
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At the present time that our country is passing through a critical period, the role of the administrative, industrial and educational organizations is inevitable in the economic operation and development of the country. But the fact whether all of them have been successful in making an effort to obtain the given aims is really questionable, because some of them seem to have performed a lot better than the others. Viewing the success of some of these organizations, we can find out about some common and key factors which have played important roles in their efficient performance.
An important factor is the existing powerful and overruling culture in which these organizations operate. Certainly, getting to know such factors and supporting them would be a useful step in leading these organizations to achieve their ideal goals successfully.
In this Article, first a theoretical analysis of culture and organizational culture is presented, then labor productivity and finally the existing theories concerning the relationship between organizational culture and labor productivity are explained. Also, in this investigation, using variance test analysis, the rank of Management Colleges of such academic institutions like Higher Education Confederate of Ghom, Tehran University, Allameh - Tabatabaei University and Shahid Beheshti University have been determined on the basis of the impact of organizational culture on the rate of productivity. By applying the correlation coefficient of Spearman, the relation of organizational culture with productivity of colleges has been analyzed with regard to the criteria explained for productivity. Finally, using Friedman’s test the criteria and characteristics of organizational culture have been ranked.
Hayedeh Mottaghi; Hayedeh Mottaghi
Volume 8, Issue 33 , September 2004
Abstract
Nowadays mumerous machines are used for production in electronic industries. Considering the high cost of in vest ments on these machines, how to increase their productivity is an important problem in thiese industries.
In this article it is tried that with, studying the functions of concurrent machines ...
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Nowadays mumerous machines are used for production in electronic industries. Considering the high cost of in vest ments on these machines, how to increase their productivity is an important problem in thiese industries.
In this article it is tried that with, studying the functions of concurrent machines such as Axial and Jumper Wire first we present a linear programming mathematical model to optimize these machines’ productivities
and then with suggesting an heuristic model, we provide necessary facilities to solve a real problem. We also study the results of our findings on the Axial and Jumper Wire Machines in a factory.
