نتایج جستجو برای: qual2k model
تعداد نتایج: 2104317 فیلتر نتایج به سال:
The runoff of suspended solids and nutrients from land into the nation’s lakes and rivers can have severe impacts on the health of these systems and their uses. Highfrequency environmental data from sensors can provide insight into fundamental biogeochemical processes that dictate water quality and provide regulators with valuable knowledge on how to manage critical resources. The goal of this ...
Environmental Impacts of Drainage Water Reuse on the Freshwater of El-Salam Canal (Egypt). (Dept. C)
In Egypt, the Water Quality of fresh waterways, especially those receiving wastewater from agricultural drainage such as El-Salam Canal is every, now, and then, precarious for some water use. Although, Egypt relies on this marginal quality in order to cover resulting gap between needs supply. The reuse appears be one most promising, practical, economical means increasing Egyptian budget which G...
رود بشار یکی از منابع آبی با ارزش در استان کهگیلویه و بویراحمد بوده و از نظر زیست محیطی و اقتصادی از ارزش بالایی برخوردار است، که با تهدیدهای جدی، از جمله ورود پسابهای تصفیه‌خانهی شهر یاسوج، فاضلاب کارخانه‌های قند، گلوکز و نشاسته ، زهآبهای کشاورزی، زباله‌های شهری، و آلودگی ناشی از شبکهی جمع آوری آبهای سطحی شهر یاسوج مواجه گردیده است. در این پژوهش، به منظور آگاهی از روند تغییر‌ها و پیش‌بینی ک...
To support the implementation of instruments National Water Resources Policy, as well new legal framework for basic sanitation, environmental assessment water courses becomes important to guide planning, monitoring and management a watershed. Thus, this research aims contribute creation information structures about Paraibuna River its basin in central more urbanized region Juiz de Fora/MG. The ...
abstract this paper discusses several commonly used models for strategic marketing¹ including market environmental analysis methods (i.e. swot and pest analysis) and strategic marketing tools and techniques (i.e. boston matrix and shell directional policy matrix)and shows how these models may help a firm to achieve its strategic goals. at first, the main reason for doing this research is de...
Through the Water Framework Directive (WFD) the European countries started producing integrated river basin management plans with the basic objective to achieve “good status” of water bodies by 2015. The main aims of these plans are to identify procedures for combating the deterioration or overexploitation of water resources in the territory of each member state. In the first phase of this init...
One of the factors leading to the contamination of water resources is human activity, producing waste materials. In this paper, the effects of contamination on the water quality of Taleghan River, was simulated using of Qual2k model and the seasonal changes were evaluated. The qualified data collected during two months, August (as the dry season) and February (as the wet season), were used in t...
in this thesis, we consider a mathematical model of cancer with completely unknown parameters. we study the stability of critical points which are biologically admissible. then we consider a control on the system and introduce situations at which solutions are attracted to critical points and so the cancer disease has auto healing. the lyapunov stability method is used for estimating the un...
since its introduction in 1959, translation quality assessment (tqa) has been among the most addressed research topics in translation studies. during recent years, there has been a crucial increase on the study of tqa. various methods have come on scene. although these methods are based on scientific theories, most of them have remained at the level of theory. juliane house’s model is among tho...
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