نتایج جستجو برای: steel industry

تعداد نتایج: 270051  

2015
L. K. Gudukeya C. Mbohwa

Climate change is one of the greatest challenges worldwide. Its most severe impacts may still be avoided if efforts are made to transform current energy systems. The notion of climate change mitigation refers to the reduction of the rate of climate change via management of its causal factors such as the emission of greenhouse gases from fossil fuel combustion, agriculture, land use changes, cem...

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...

Journal: :تحقیقات اقتصادی 0
حسین صادقی

steel production in iran has been recorded since fourteen century b.c. however the main growth and development in steel industry has occurred in recent decades. steel industry has important role in development of industrial countries, and also steel consumption may consider as an important ind ices in the development process. this pap er has analyzed two main complexes (zobe ahan and mobarakch)...

2013
Ming-Tao Chou

The global steel price index is a leading indicator in the bulk shipping industry. A study of the global steel price index combined with the establishment of fuzzy time series models can be used to predict future trends in the trading range of the global steel price index. Analysis of applied fuzzy time series data shows the following results: (1) Price volatility of the global steel price inde...

2012
Mohammad Hossein Fazel Zarandi Milad Avazbeigi Mohammad Hassan Anssari Behnam Ganji

Iron and steel industry is a crucial basic section for most of the industrial activities. This industry provides the primary materials for construction, automobile, machinery and many other businesses. Furthermore, the iron and steel manufacturing is highly energy consuming. The influence of an efficient process control on the cost and energy reduction and environmental effects in iron and stee...

Journal: :تحقیقات نظام سلامت 0
اصغر ابراهیمی مربی، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی یزد، یزد، ایران. محمد مهدی امین استادیار، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران حسن هاشمی عضو هیأت علمی گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شهرکرد، شهرکرد، ایران. رضا فولادی فرد کارشناس ارشد، گروه عمران محیط زیست، دانشکده فنی، دانشگاه تهران، تهران، ایران. مرضیه وحید دستجردی کارشناس ارشد، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران.

background: groundwater resources in arid and semi arid regions are very important. groundwater is contaminated by agricultural, industrial and municipal activity which as a result reduces its quality. investigating of the chemical quality of the groundwater is emphasized to identify pollutant environmental impacts associated with incorrect waste disposal practice. this research investigated th...

M. Hasanzade M. Shahriari N. Pilevari,

Bullwhip effect phenomenon is what reduces the efficiency of the supply chain. The effect occurs when demand changes in the supply chain face with a lot of volatility. So far, several key factors have been identified as causes of this phenomenon. Since the steel industry, is the basic one, its efficiency is of great importance. Therefore, in this study influencing factors on Bullwhip Effect in ...

2003
Bih-Yaw Shih

Traditional knowledge management mechanism focused on the re-usage of knowledge library. However, it lacks the ability of knowledge innovation and co-creation. Meanwhile, employee should experience the process recognition and formation of knowledge. Therefore, if therefore has any mechanism, which can be used to improve these problems, it will be helpful on improving the competition of industry...

2005
P. S. Mitchell

Figure 1, compiled from data in the US Geological Survey indicates that, in 2004, 94% of vanadium used was consumed by the steel industry and 6% by all other uses. Figures 2 and 3 show data on steel production and vanadium consumption over a number of past years. Figure 2 indicates that in 2004 steel production reached a record level of 1.036 billon tonnes, driven largely by increases in steel ...

Steel industry is one of the leading industries in the world. Today it is also one of the fundamental and strategic industries of the world. Per capita production and consumption amount of steel are used as a criterion for evaluation of country development. Furthermore, attention to technological innovations is assumed so much crucial to access the international markets of steel industrie...

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