نتایج جستجو برای: added of natural resources based industries including oil and gas
تعداد نتایج: 24327812 فیلتر نتایج به سال:
Natural gas demand in the United States has been increasing for the last 15 years and is projected to grow substantially in the next 20 years. Meeting this growing demand will require an accompanying increase in supply, which is expected to come mostly from additional production in the United States. The prospect of increased U.S. production has led to ongoing efforts both to better assess our ...
economic development's driving force in each country is usually industrial development based on the advantages of the country. iran is ranked number two globally in oil and gas resources. aluminum industry is the most important energy consuming industry. aluminum is one of the strategic metals which is produced through electrolysis and is named as energy storage. due to its outstanding pr...
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the aim of this paper is eliminating cr(vi) by natural hap. hap is a inexpensive material which is used from bovine critical bone ash in order to remove heavy metal ions like cr(vi). some experiments in different ph are performed (ph=2,3,7). maximum adsorption was appeared at ph=2, dosage=0.3 gr, c0=10 mg/l. cr(vi) removal depends on ph value and initial amount of cr(vi) result of experiments w...
in recent years many researchers have been focused on interaction of small molecules with dna. dna is generally the primary intracellular of anticancer drugs, so the interaction between small molecules and dna can cause dna damage in cancer cells, blocking the division of cancer cells and resulting in cell death. the flavonoids are a large group of polyphenolic natural products that are widely ...
Today Identify and analyze critical natural, economic, socio-cultural, and political drivers Creation, growth, and development of cities. It has become one of the essential concerns of urban planners and decision-makers for short, medium, and long-term planning for citieschr('39') growth and development. The aim of this study is the Identify and analyze key drivers affecting the formation proce...
there are two major theories of measurement in psychometrics: classical test theory (ctt) and item-response theory (irt). despite its widespread and long use, ctt has a number of shortcomings, which make it problematic to be used for practical and theoretical purposes. irt tries to solve these shortcomings, and provide better and more dependable answers. one of the applications of irt is the as...
this paper is analysing the role of economic reforms on the labour market in iranian industry in economic reform period (1990-2005), and in turn, it is comparing it with closed economic period (1979-1989). in order to do the above comparative analysis, the manufacturing industry has been categorized based on hecksher-ohlin and gause methodology. accordingly, we have some industrial groups, incl...
abstract sensitive and precise voltammetric methods for the determination of trace amounts of furaldehydes, mainly as furfural (f) and 5-hydroxymethyl-2-furaldehyde (hmf), in waste waters and other matrices is described. determination of total furaldehyde at < ?g g-1 levels in alkaline buffered aqueous media was individually investigated. by the use of ordinary swv and adsorptive square wave ...
s teel industries play a key role in the national economy and welfare of the society in many steel manufacturer countries. it is found that manufacturing and consuming of steel products would be a key indicator to measure and evaluate economic and industrial performance of a country. nowadays, countries with the large natural oil and gas resources (e.g. iran) attempt to select an alternative ec...
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