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۱,۸۷۱ مقاله پیدا شد.
انسانها همواره سعی کرده اند که از منابع موجود در طبیعت به نفع خود استفاده کنند ولی آیا به این مسئله توجه دارند که این منابع امانتی است در دست آنها؟ ا…
یکی از مسا یل موجود در طراحی کانال های باز ، وجود انحناء در مسیر کانال می باشد برای کم نمـودن اثـرات سوء جریان در یک انحناء لازم است که هندسه انحناء…
یکی از ملاحظات بسیار مهم برای طراحی پلهای رودخانه ای بررسی پدیده ابشستگی و فرسایش پایه ها و شالوده ها می باشدکه در بسیاری مواقع باعث آسیب دیدگی و فرو…
مبحث انتقال رسوب در اغلب رودخانههای شنی , به علت غیر یکنواختی ذرات رسوب , بسیار پیچیده میباشد در این تحقیق، پاییندست چشمه لنگان در رودخانه زایندهرود…
شاخص های آلودگی را معمولاً با استفاده از معادلة موازنه جرم توسط روش های عددی می توان شبیه سازی نمود معادلة دینامیکی توازن جرمی در قالب رابطه پخش و ان…
با توجه به بالا بودن خسارات ناشی از شکست سد، توجه به این پدیده همزمان با طراحی سد حائز اهمیت فراوانی می باشد مطالعات ارزیابی ریسک ناشی از شکست سدهای…
It is very important to forecast rainfall runoff exactly in the development and management of water resources But hydrologic characteristic factors…
A numerical model based upon a second order upwind finite volume method on unstructured triangular grids is developed for solving shallow water equat…
Recognition of river behavior and performing salubrious activities with nature has always been the titillation of engineers in this field They always…
A culvert does not necessarily flow full when the entrance is submerged unless the entrance is of a special design which allows this to happen Normal…
To achieve water quality goals in a river basin, a water quality management model has been developed through the GIS approach and a mathematical wate…
Over the last decade, evolutionary and meta heuristic algorithms EAs have been extensively used as search and optimization tools in various engineeri…
The design and operating features of a fully automated hydrometric station are described is some detail The objective were to develop and use the sta…
Experimental measurements were conducted to determine the level of Natural organic matter NOM and its disinfection by products formation potential DB…
The accurate computer simulation of flow in man made natural channels is of great importance in design of hydraulic structures The numerical simulati…
Flow in a semi natural meandering small channel, through several developed cross sections has been investigated experimentally Accurate geometry of t…
the effectiveness of flood control measures in flooding planning has long been recognized , and such measures have come to be considered clearly with…
A spillway is usually the most important appurtenant facility to a dam The function of the spillway is to provide an efficient and safe means of conv…
Models explaining why catchments respond to rainfall in a certain way, and predicting how they will respond to the future events, have been built for…
Low flow index of 7 day from 57 hydrometric stations was extracted and examined to detect trends and changes in timing of summer and winter 7 day low…
The unsteady open channel flow equations are typically expressed in a variety of forms due to the imposition of differing assumptions, use of varied…
River flow is a key flux in climate system and considered as being the combines result pf all the climatological and geographical factors that operat…
Over the last few decades, non point source NPS pollution has grown into a global environmental issue Sedimentation and nutrient loadings are identif…
The frequency and severity of flooding has increased dramatically over recent years, and is now a World wide problem that requires increasing researc…
