نتایج جستجو برای: industrial quarter and workshops
تعداد نتایج: 16852330 فیلتر نتایج به سال:
there is no doubt that human being needs to become integrated with industry and industry needs to be progressed, daily. on the other hand, serious events in industrial units specially in oil industries has been shown that such damages and events are industry related ones. the consequence of such events and damages which resulted in chemical and poisoned explosions and loss of life and property ...
value added is a criterion for evaluating the performance of economic units. statistics related to various economic indicators of industrial workshops located in iranian provinces with their value added are annually obtained by statistical centre of iran via “industrial workshops survey” program. this study is going to find the most important factors affecting the value added of the workshops, ...
این مقاله با استفاده از تحلیل داده های تابلویی به بررسی تاثیر فناوری اطلاعات و ارتباطات (فاوا) بر بهرهوری سرمایه و بهره وری کل عوامل، در در کارگاه های بزرگ صنعتی استان یزد پرداخته است. به این منظور تحلیل با استفاده از اطلاعات آمارگیری کارگاههای بزرگ صنعتی مرکز آمار ایران با بکارگیری مدل دادههای تابلویی در سطح بنگاه و بر اساس آخرین اطلاعات منتشر شده (1393 - 1385) انجام شده است. در این مطالعه...
the limit and definition of the cultural zone of jazmurian in the southeastern iran is identical with the geographical boundarise of jazmurian basin and in geographical setting. the cultural zone of jazmurian could be identified with the ancient makan of akadian period, gedrosia and achofadjia of historical period. the remains of ancient city of jiroft during islamic period at the archeaologica...
a one dimensional dynamic model for a riser reactor in a fluidized bed catalytic cracking unit (fccu) for gasoil feed has been developed in two distinct conditions, one for industrial fccu and another for fccu using various frequencies of microwave energy spaced at the height of the riser reactor (fccu-mw). in addition, in order to increase the accuracy of component and bulk diffusion, instanta...
attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...
since density is considered as one of the most important numerical indices to explain quantitative values of a plant community by affecting on many aspects and activity of ecosystem, on the other hand, awareness about plants distribution pattern in environment is an essential preparation for measurement and study of vegetative cover, therefore, in this research determination of density and dist...
Background and Objectives: The presence of industrial workshops has increased urban pollution. This study aimed to investigate the heavy metal pollutants of Yazd battery repairing workshops and to identify the ecological and environmental effects resulted. Materials and Methods: This descriptive cross-sectional study was carried out in Yazd. In this regard, the city was divided into three pa...
Since density is considered as one of the most important numerical indices to explain quantitative values of a plant community by affecting on many aspects and activity of ecosystem, on the other hand, awareness about plants distribution pattern in environment is an essential preparation for measurement and study of vegetative cover, therefore, in this research determination of density and dist...
Background & Aims of the Study: Noise is one of the most important environmental pollutants. It is a global health problem, especially among industrial workers. Since there was little information about noise levels in small workshops in Qom city, this study aimed to evaluate noise in small workshops and compare it with national standards. Materials and Methods: This was a cross-sectional stu...
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