نتایج جستجو برای: heavy industry

تعداد نتایج: 314467  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده مدیریت 1391

one of the most important factors in study of project’s , is the study of environmental opportunities factors the permanent study of environmental opportunity factors . the study of permanent environmental changing and knowing golden threats’ cooperate with possible threats and at the result in structure forming and future skeleton of organization has a vital effects . the petrochemical industr...

A Adelkhah, F* Babaei Semiromi, S Alipour,

Background & objectives: Since many plants have high efficiency in absorbing heavy elements, the use of phytoremediation is of great importance. The purpose of this study is to identify native plants that absorb heavy metals. Also, the possibility of using them in phytoremediation technology in soils contaminated with heavy metals (around the petrochemical industry of Razi fertilizer in Tehran ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده مدیریت و اقتصاد 1391

abstract nowadays, industries cannot play a crucial role in national and international competitions. the tourism industry is no exception. tourism industry development as the most important economic sector and income generation is one of the key challenges of economic development in the world. therefore, countries were successful that take advantage of the capabilities of tourism sector using ...

2016
C. Chaves Hernandez D. dos Santos Rosa

The application of cellulose nanowhiskers in polymeric composites is growing due to its good properties, which expands the applicability in the industrial sector, although many studies are still in the laboratory stage. Silva, R. et al. cites many segments for application of natural cellulosic fibers, wide applicability detaching, from textile industry to some studies for the use of fibers such...

2012
Ehsanul Kabir Sharmila Ray Ki-Hyun Kim Hye-On Yoon Eui-Chan Jeon Yoon Shin Kim Yong-Sung Cho Seong-Taek Yun Richard J. C. Brown

There is a growing public concern over the potential accumulation of heavy metals in soil, owing to rapid industrial development. In an effort to describe the status of the pollutions of soil by industrial activities, relevant data sets reported by many studies were surveyed and reviewed. The results of our analysis indicate that soils were polluted most significantly by metals such as lead, zi...

Amir Bashian Hessam Golmohamadi, Hossein Mahmoodi Majid Aras Nejad Mehdi Hammami

In recent years, incremental rate of electrical demands made many challenges for policy makers of power systems. Besides, due to economic crisis and environmental concerns about the air pollution, the new investments in thermal power generation units have experienced a noticeable reduction. For this reason, the power system operators should propose novel approaches to make a balance between inc...

Journal: :iranian journal of public health 0
n mansouri j nouri

an emission factor is a tool that is used to estimate air pollutant emissions to the atmosphere. it relates the quantity of pollutants released from a source to some activities associated with those emissions. to determine the quantity of pollutant released from copper and its alloys smelting furnaces, 63 samples from emission gases were collected on cellulose ester membrane filters in three 8-...

Journal: :iranian journal of medical physics 0
mehdi roknian m.sc., in health science, tehran university of medical sciences, tehran, iran parvin nassiri professor, health science dept., tehran university of medical sciences, tehran, iran hojat zeraati associate professor, public health science dept., tehran university of medical sciences, tehran, iran mohammad gholami m.d., sepahe eslam makhsus highway, defense industries organization (d.i.o), armament industries group.hadid industries

introduction: it is important that biological and health effects from the induction of currents and fields in the body by extremely low frequency (elf) fields are fully explored to determine the effects produced at the molecular, cellular and organ levels. the objective of this study was to evaluate the intensity of elf electromagnetic fields and its probable relationship with hematological cha...

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