نتایج جستجو برای: metallic mineral products (code36)

تعداد نتایج: 392632  

Journal: :تحقیقات اقتصادی 0
حمید عزیزمحمدلو دانشجوی دوره‎ی دکتری علوم اقتصادی دانشگاه تهران

the quality of firms’ reaction against demand uncertainty affects the production inputs employment. in this research i have studied and compared the behavior of active firms in manufacturing sector with respect to the risk attitude and tested it’s effect on production inputs combination(with the special emphasize on labor employment). the research findings reveal that active firms in manufactur...

Within the last 3 decades, fossil fuels have been the largest source of greenhouse gas emissions. Energy intensive industries are the main energy-consuming sectors in Iran. Non-metallic mineral products, basic metals, and chemical products are considered to be the most energy intensive industries in Iran. this paper means to evaluate the environmental efficiency of industrial sector during 2008...

Within the last 3 decades, fossil fuels have been the largest source of greenhouse gas emissions. Energy intensive industries are the main energy-consuming sectors in Iran. Non-metallic mineral products, basic metals, and chemical products are considered to be the most energy intensive industries in Iran. this paper means to evaluate the environmental efficiency of industrial sector during 2008...

Marjan Habibi, Mohammad Ali Feizpour

Empirical studies have shown that the size distribution of firms can be described as a lognormal or Pareto distribution. However, these studies have focused on developed countries and little attention has been devoted to developing countries. Using the variable of number of employees as a measure of firm size, this paper investigates the shape of firm size distribution in the food & beverages i...

Journal: :international journal of business and development studies 0

empirical studies have shown that the size distribution of firms can be described as a lognormal or pareto distribution. however, these studies have focused on developed countries and little attention has been devoted to developing countries. using the variable of number of employees as a measure of firm size, this paper investigates the shape of firm size distribution in the food & beverages i...

Study of empowerment and feasibility of different regions’ economy and its trend is an effective step for regional planning and resource allocation. This research tries to investigate different economic activities in order to determine investment opportunities in Ardabil Province. For ranking of economic activities a mix method of factor analysis and numeric taxonomy together with absolute adv...

We undertook a sensitivity analysis of the key demand factors leading to changes of energy consumption in the competitive market, using a Leontief demand-driven approach. We applied the Leontief model to previous research results to study the most sensitive factors leading to the change of energy demand in different economic sectors. Based on the 2011 Iranian symmetrical input–output table, the...

Journal: :iranian journal of science and technology (sciences) 2014
s. sai srikant

microwave energy has potential for the efficient heating of minerals. minerals or materials, which couple to microwave energy are called dielectrics and many valuable minerals are found to be dielectric. the mineral ilmenite is one which shows good dielectric heating characteristics. in this paper, the effect of microwave heat energy on the partial reduction of oxidized ilmenite oxidized in ...

Journal: :تحقیقات اقتصادی 0
محمد علی فیض پور دانشکدة اقتصاد و مدیریت حسابداری دانشگاه یزد سعید نایب دانشکدة اقتصاد و حسابداری تهران مرکز گلسا صالحی فیروزآبادی کارشناس ارشد علوم اقتصادی

firm size and its impact on the firm performance examined in all of economics historical periods from different point of view. meanwhile, productivity is one the most important performance index for each firm, therefore so many studies tries to survey firm size impact on it. in iran also, economics literature replete with productivity studies but the impact of size on it rarely seen between the...

2014
Pingsheng Liu Emily Domingue David C. Ayers Jie Song

Osteoconductive mineral coatings are beneficial for improving the osteointegration of metallic orthopedic/dental implants, but achieving adequate structural integration between the surface minerals and underlying metallic substrates has been a significant challenge. Here, we report covalent grafting of zwitterionic poly(sulfobetaine methacrylate) (pSBMA) brushes on the Ti6Al4V substrates to pro...

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