نتایج جستجو برای: improving exploitation model of water resources

تعداد نتایج: 21446256  

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

چکیده روش های متعددی برای برآورد رواناب حاصل از بارش در حوضه های آبریز وجود دارد. یکی از این روش ها استفاده از مدل های هیدرولوژیکی است. با استفاده از مدل های هیدرولوژیکی و شبیه سازی فرآیندهای هیدرولوژیکی می توان با صرف کمترین زمان و هزینه، رواناب و مولفه های دیگر چرخ? هیدرولوژیکی را برآورد کرد. از آنجا که در حوضه های آبریز اندازه گیری تمام کمیت های مورد نیاز برای تحلیل رواناب ممکن نیست، انتخاب...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده برق و کامپیوتر 1392

abstract nowadaysphotovoltaic solar cells (pvs) areacknowledged the fastest growing energy technology in the word, however, they only account for only fraction of current global renewable energy capacity. it isrecognized that this incomplete market penetration has been largely a result of the technology’sexcessive cost. so researchers are trying to find innovative, economic way with theaim of ...

Frequent droughts and their consequences result in the loss of groundwater, the deficiency of nutrients, the drying of surface water resources, and substantially more exploitation of the groundwater resources, which, altogether, cause the mobilization of saline waters to groundwater tables. This will impair the capacity of the aquifers and the quality of the water. The VIKOR method was applied ...

2013
A. B. Dariane H. A. Thomas S. A. Marglin

Scarcity of water resources and huge costs of establishing new hydraulic installations necessitate optimal exploitation from existing reservoirs. Sustainable management and efficient exploitation from existing finite water resources are important factors in water resource management, particularly in the periods of water insufficiency and in dry regions, and on account of competitive allocations...

This paper evaluated an integrated water resources management approach through linked WEAP-MODFLOW model. Study area is Ravasnar-Sanjabi plain located in Kermanshah province in the west of Iran. A MODFLOW model was evaluated and then, accepted as a groundwater model for the region in present research. Schematic WEAP model was provided as representing general features of water resources system a...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1391

regarding the ever evolving and improving world on different aspects of knowledge, the need to a worldwide communication would emerge stronger than ever before which calls for special attention on the judgments and best choices for intermediating between the nations. as the language skills for translation are tested separately from translation skills themselves, to assess translation skills pro...

Journal: :اکو هیدرولوژی 0
سعید فرزین استادیار، گروه مهندسی آب و سازه‏ های هیدرولیکی، دانشکدۀ مهندسی عمران، دانشگاه سمنان حجت کرمی استادیار، گروه مهندسی آب و سازه‏های هیدرولیکی، دانشکدۀ مهندسی عمران، دانشگاه سمنان مهسا دوست محمدی دانشجوی کارشناسی ارشد مهندسی و مدیریت منابع آب، دانشکدۀ مهندسی عمران، دانشگاه سمنان آنسه قنبری دانشجوی کارشناسی ارشد مهندسی و مدیریت منابع آب، دانشکدۀ مهندسی عمران، دانشگاه سمنان الهام ضمیری دانشجوی کارشناسی ارشد مهندسی و مدیریت منابع آب، دانشکدۀ مهندسی عمران، دانشگاه سمنان

precipitation is one of the hydrological processes that play an important role in controlling water resources management. shortage of rain causes some problems such as lack of drinking water. due to the importance of the issue of water shortage, using modern methods to predict hydrological processes will play an important role in planning and management of water resources. therefore, in this st...

Journal: :international journal of environmental research 0
h. najafi alamdarlo tarbiat modares university, iran m. ahmadian university of tehran, iran s. khalilian tarbiat modares university, iran

groundwater is one of the common resources in varamin plain, but due to over extraction it has been exposed to ruin. this phenomenon will lead to economic and environmental problems. on the other hand, the world is expected to face with more stochastic events of water supply. furthermore, incorporating stochastic consideration of water supply becomes more acute in designing water facilities. th...

Erfan Rostami, Hamidreza Mehrabe Mehdi Farahpour

Abstract. Rangelands are mainly used for grazing the livestock in Iran, it is essential to specify grazing suitability of rangelands in each region of country, so that it may improve the management policies and approaches for planning and designing current and future plans. The aim of this research was to determine the rangeland suitability for sheep grazing in the watershed of Sadegh Abad, Ker...

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The Rivers most common sources of drinking water supply, agriculture and industry are considered as due to the different regions of admission and can pass and in direct contact with with its surroundings have many quality swings. The other hand, excessive exploitation of soil, continuous use of surface and underground water resources and sustainable use of agricultural chemicals (fertilizers an...

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