نتایج جستجو برای: over the past three decades helicopter
تعداد نتایج: 16222904 فیلتر نتایج به سال:
the purpose of this research is to analyze heat waves characteristics in the warm period of the year as a climatic hazard in iran. in this study, the daily maximum temperature is taken at 44 synoptic stations during the period 1981-2010. these temperature values were used to extract the intensity, frequency and duration of heat waves using percentile thresholds of 90, 95, and 98. the results sh...
Methane (CH4) is an important greenhouse gas and plays a significant role in tropospheric stratospheric chemistry. Despite the relevance of methane human-induced climate change air pollution chemistry, there no scientific consensus on causes changes its growth rates variability over past three decades. We use well-validated chemistry–transport model for simulating CH4 concentration estimation r...
The concept of "inclusive development" has been expanded with the aim of placing special emphasis on the social and political aspects of development. In explaining this concept, the focus of how well-being is distributed to different sections of society, especially disadvantaged groups and social minorities (such as youth, women, ethnic minorities, religious minorities, etc.), is at stake. The ...
the caspian sea contains great resources of oil and gas. the caspian sea is a 700- mile- long body of water in central asia, land located between azerbaijan, iran, kazakhstan, russia and turkmenistan. iran was challenges and opportunities in the caspian region. key question in this thesis includes three section that first question, opportunities of iran in the caspian region, second question ch...
the purpose of this study is identifying effective factors which make customers shop online in iran and investigating the importance of discovered factors in online customers’ decision. in the identifying phase, to discover the factors affecting online shopping behavior of customers in iran, the derived reference model summarizing antecedents of online shopping proposed by change et al. was us...
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