نتایج جستجو برای: flow duration curve
تعداد نتایج: 795994 فیلتر نتایج به سال:
The sediment load estimation is essential for watershed management and soil conservation strategies. The sediment rating curve is the most common approach for estimating the sediment load when the observed sediment records are not available. With regard to the measurement errors and the limitation of available data, the sediment rating curve has a degree of uncertainty which should be accounted...
The "Selection At List Time" (SALT) scheme controls sampling of concentration for estimating total suspended sediment yield. The probability of taking a sample is proportional to its estimated contribution to total suspended sediment discharge. This procedure gives unbiased estimates of total suspended sediment yield and the variance of the estimate while automatically emphasizing sampling at h...
The physically-based flood frequency models use readily available rainfall data and catchment characteristics to derive the flood frequency distribution. In the present study, a new physically-based flood frequency distribution has been developed. This model uses bivariate exponential distribution for rainfall intensity and duration, and the Soil Conservation Service-Curve Number (SCS-CN) metho...
Background and Objective: Nitrate is one of the dissolved anions having great health importance in water. Human activities and natural sources are considered as the main roots of nitrate intrusion in to water bodies. The main objective of this paper was to study nitrate removal by packed bed column filled with (PAN)-oxime-nano Fe2O3. Materials and Methods: PAN-oxime-nano Fe2O3 were synthesized ...
OBJECTIVE To validate a cheaper and more accessible flow cytometry-based method of assessing Asialoglycoprotein Receptor (ASGPR) expression for hepatic functional reserve. STUDY DESIGN A retrospective analysis. PLACE AND DURATION OF STUDY Beijing Ditan Hospital, Capital Medical University, Beijing, from January 2011 to October 2013. METHODOLOGY Patients with Hepatocellular Carcinoma (HCC)...
cash flow forecasting is an indispensable tool for construction companies, and is essential for the survivalof any contractor at all stages of the work. the time available for a detailed pre-tender cash flow forecast is oftenlimited. therefore, contractors require simpler and quicker techniques which would enable them to forecast cash flowwith reasonable accuracy. forecasting s-curves in constr...
In developing countries with data scarcity challenges, an integrated approach is required to enhance the estimation of streamflow variability for design water supply systems, hydropower generation, environmental flows, allocation and pollution studies. The Flow Duration Curve (FDC) was adopted as a tool that influenced by topography, land use cover, discharge climate change. from Global Climate...
the performance of water flooding can be investigated by using either detail numerical modeling or simulation, or simply through the analytical buckley-leverett (bl) model. the buckley-leverett analytical technique can be applied to one-dimensional homogeneous systems. in this paper, the impact of heterogeneity on water flooding performance and fractional flow curve is investigated. first, a ba...
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