نتایج جستجو برای: keywords oil economics
تعداد نتایج: 2138802 فیلتر نتایج به سال:
We examined the effects of the sowing time on the yield production and oil content of the sunflower hybrids in 2010 and 2012. The crop year and the sowing time had both a strong impact on the yield, on the oilcontent and yield. By delaying the sowing time both the yield crop result and the oil yield increased. In 2010 in terms of crop yield and oil yield results PR64H42 was the best, in 2012 NK...
abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...
Since the 1980s, most of the oil and gas tracts auctioned by the federal government in the Gulf of Mexico are adjacent to tracts that are already under lease. Owners of neighboring leases enjoy incumbency advantages that act as a barrier to entry for other firms. We ask whether owners of neigboring leases take advantage of their situation and agree not to compete. To answer this question, we de...
as a result of higher crude oil prices, in one hand, it is expected that alternative energy resources consumption is increased and consumers change their behavior to decline energy intensity too. on the other hand, more alternative energy consumption can leads to a decline of crude oil aggregate demand. therefore, existence of mutual causality between crude oil price and alternative energy cons...
This research tries to make a content analysis on seven academic-scholarly journals in the field of economics quarterly published within 2006 – 2010 to find out the number of articles, authors’ sex, education, team working as well as the subject matter of the articles. According to the results of the research, 994 papers were authored by 2215 researchers within this five-year period. More than ...
in working process of power transformer, which directly affects the safe operation of transformer oil temperature as well as the stability of the network, so vital to transformer oil temperature detection and control. Based on single chip and chip design of digital temperature measurement transformer oil temperature of an intelligent control system. The system uses a digital temperature sensor ...
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