نتایج جستجو برای: mashhad plain aquifer
تعداد نتایج: 58335 فیلتر نتایج به سال:
Background: Nitrate is one of the most prevalent contaminants in groundwater. Ingestion of nitrate in drinking water by infants can cause low oxygen level in the blood which is a potentially fatal condition. In this study the concentration of nitrate and nitrite and contaminant supply in shiraz groundwater by ArcView Geographical Information System 9.3was investigated. methods: In this descrip...
In this paper, we present an application of evolved neural networks using a real coded genetic algorithm for simulations of monthly groundwater levels in a coastal aquifer located in the Shabestar Plain, Iran. After initializing the model with groundwater elevations observed at a given time, the developed hybrid genetic algorithm-back propagation (GA-BP) should be able to reproduce groundwater ...
in this paper, we present an application of evolved neural networks using a real coded genetic algorithm for simulations of monthly groundwater levels in a coastal aquifer located in the shabestar plain, iran. after initializing the model with groundwater elevations observed at a given time, the developed hybrid genetic algorithm-back propagation (ga-bp) should be able to reproduce groundwater ...
The groundwater of the Ghis-Nekor aquifer (Central Rif Morocco) is main water resource used by inhabitants for agricultural and domestic purposes. However, its low quality may affect health consumer weaken production. existence WWTP at level this plain, makes it a probable source pollution these requires urgent managers’ intervention. Groundwater in area be related to natural, anthropogenic und...
1Immunology Research Centre Bu-Ali Research Institute, 2Department of Pathology and Laboratory Medicine, and 3Department of Internal Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; 4Department of Internal Medicine, American University of Beirut, Beirut, Lebanon; 5Oncovirologie et Biothérapies, Centre National de la Recherche Scientifique (CNRS) FRE 3011, Université Claude Berna...
A number of optimization approaches regarding monitoring network design and sampling optimization procedures have been reported in the literature. Cokriging Estimation Variance (CEV) is a useful optimization tool to determine the influence of the spatial configuration of monitoring networks on parameter estimations. It was used in order to derive a reduced configuration of a nitrate concentrati...
Groundwater recharge is one of the basic parameters required in water resources potential calculations. There are several methods applied to estimate groundwater recharge, however, every method has its own advantages and disadvantages, due fact that theory infiltration vadose zone hydrology highly complex. Search for a based on less complex theory, which requires readily available representativ...
Wells screened across multiple aquifers can provide pathways for the movement of surprisingly large volumes of groundwater to confined aquifers used for public water supply (PWS). Using a simple numerical model, we examine the impact of several pumping scenarios on leakage from an unconfined aquifer to a confined aquifer and conclude that a single inactive multi-aquifer well can contribute near...
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