نتایج جستجو برای: improving exploitation model of water resources

تعداد نتایج: 21446256  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی مهندسی 1388

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...

Journal: :Journal of Geography, Environment and Earth Science International 2020

Journal: :اقتصاد و توسعه کشاورزی 0
باریکانی باریکانی احمدیان احمدیان خلیلیان خلیلیان

abstract surface water restriction and supply variation of these resources causes of over extraction of groundwater and unbalance between feed and extraction of groundwater in iran. agricultural sector as the biggest consumer of water resources has the most share of this unsustainability. this paper studies the conjunctive use of surface and groundwater in agronomy production in qazvin basin, o...

Journal: :مدیریت صنعتی 0
عبدالرسول قاسمی استادیار دانشکده اقتصاد دانشگاه علامه طباطبایی، تهران، ایران اسفندیار جهانگرد استادیار دانشکده اقتصاد دانشگاه علامه طباطبایی، تهران، ایران

the investigation of dimensional efficiency for branches of maskan bank in resources collection and facilities allocation: approach of super efficiency model with weight restrictions. the scarcity of financial resources of banks, especially in developing countries like as iran, leads to planning for improving efficiency and productivity. improving efficiency needs to performance measurement and...

Journal: Desert 2020
A. Abolhasani Gh.R. Zehtabian, H. Khosravi, M. Jafary Sh. Javadi

Compared to surface water, groundwater resources are the primary source of water supply in arid and semi-arid regions of Iran, hence the importance of the management of these resources .  In this regard, we assessed the effects of landuse changes on the qualitative and quantitative status of groundwater resources in Eshtehard region, Iran. Through processing and analyzing the satellite images, ...

2015
Yujiang He Guiling Wang Wenjing Lin Wei Zhang

The geothermal resources in sedimentary basin are affected by many factors because the characteristic of geothermal reservoirs is very complex, so the heat storage capacities are hard to calculate. This paper took Dunhuang Basin as an example to analyze the geological structure, stratigraphic structure and the formation mechanism of geothermal water based on the formation characteristics of the...

Journal: :Frontiers in Ecology and the Environment 2015

Journal: :آمایش سرزمین 0
علی جهانی دانشجوی دکتری جنگل داری، دانشکده منابع طبیعی، دانشگاه تهران مجید مخدوم فرخنده . استاد گروه جنگل داری، دانشکده منابع طبیعی، دانشگاه تهران ، جهانگیر فقهی دانشیار گروه جنگل داری، دانشکده منابع طبیعی، دانشگاه تهران ، وحید اعتماد . استادیار گروه جنگل داری، دانشکده منابع طبیعی، دانشگاه تهران

nowadays because of various factors, including inappropriate land use, and indiscriminate exploitation of water resources, soil and vegetation, wide areas of the country were exposed to destruction of lands and desertification. therefore dealing with this situation requires a comprehensive land use program (water and land) and appropriate environment potency. the study area is patom district of...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک - دانشکده علوم 1392

the history of plant’s used for mankind is as old as the start of humankind. initially, people used plants for their nutritional proposes but after the discovery of medicinal properties, this natural ?ora became a useful source of disease cure and health improvement across various human communities. berberis vulgaris is one of the medicinal plants used in iranian traditional medicine. berberis ...

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