نتایج جستجو برای: following changes in economic fields
تعداد نتایج: 17171630 فیلتر نتایج به سال:
according to the irrigation systems design standards, allowed pressure variation in lateral pipes is 20 percent. reasons for this rate selection, which since the 60's is performed, are not known. the increased changes in allowed pressure tubes to lateral pipes design, the increased sprinkling system required pressure and the increased nonuniform sprinkler distribution, so energy supply cos...
Following the victory of Islamic revolution, numerous efforts were carried out to transform Iran's underdeveloped condition. Despite all these efforts, it seems structural changes in Iran's political economy have not been successful and rentier economic attributes still apply to Iran's government. Therefore under current circumstances, exerting growing pressure on Iran's economy to force her to...
the effects of electromagnetic fields (emfs) radiation at the frequency of 940 mhz on the structure and function of human adult and fetal hemoglobin (hba and hbf) were studied. after extraction and purification of hba and hbf, the oxygen absorption values for exposed and unexposed hba and hbf to emf were compared. the slope of oxygen absorption curve for exposed hba was increased while that for...
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...
It is necessarily advisable to ponder about the “change process”, most particularly in the area of human interactions so that one make more consummate realization of numerous occurrences and challenges like cases of success or failure in highly assorted political, cultural, social or economic plans that societies experience. On the other hand, understanding the causes and effective factors lead...
to determine the coefficients of c1 and c in mitscherlich-bray equation, critical level and fertilizer recommendation for potassium (k) as by mitscherlich-bray (mb) equation, an experiment in a randomized complete block design of 5 treatments and 3 replications was carried out in 12 irrigated wheat (triticum aestivum l.) fields in sarpol-e-zohab region during the 2007-08 growing season. the tre...
During last century and in a period of time called modern history of Iran, we have seen different changes in life of urban communities as whole, and urban and rural Kurdistan in particular. The range and power of such changes has been in such a level that we can claim that has changed the “life world” of Iranians considerably. Our field study faces in one way with a weak efforts of first genera...
purchase and consumption are an inseparable part of man’s social actions and play a vital role in allocating resources for the production of various products, their distribution pattern as well as economic, political and social development. if this issue is to be seen from the perspective of consumer behavior, consumption patterns and purchasing are considered a cultural phenomenon to be explai...
During last century and in a period of time called modern history of middle east, we have seen different changes in life of urban communities as whole, and urban and rural of the mentioned region in particular. The range and power of such changes has been in such a level that we can claim: it has changed the “life world” of people noticeably. Among all parts of the region our field study (Iran’...
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