نتایج جستجو برای: rating curve

تعداد نتایج: 172591  

Journal: :مرتع و آبخیزداری 0
محسن یوسفی کارشناس ارشد آبخیزداری، دانشکدة منابع طبیعی و کویرشناسی، دانشگاه یزد، ایران فاطمه برزگر عضو هیئت علمی دانشکدة کشاورزی دانشگاه پیام نور، ایران

suspended sediment estimation is an important factor from different aspects including, farming, soil conservation, dams, aquatic life, as well as various aspects of the research. there are different methods for suspended sediment estimation. this study aims to estimate suspended sediment using feed forward neural network with error back propagation with levenberg-marquardt back propagation algo...

باطنی, محمدمهدی, بهمنش, جواد, محمدپور, مریم,

The rivers sediment load is determined using hydrologic methods. In the statistical methods, by measuring the rivers discharge and suspended sediment load in a long-term period, the relationships between the suspended sediment load and discharge is obtained. The aim of this study is to compare different estimation methods of suspended load and select the most appropriate relationship for the pr...

Journal: :caspian journal of internal medicine 0
karimollah hajian-tilaki

this review provides the basic principle and rational for roc analysis of rating and continuous diagnostic test results versus a gold standard. derived indexes of accuracy, in particular area under the curve (auc) has a meaningful interpretation for disease classification from healthy subjects. the methods of estimate of auc and its testing in single diagnostic test and also comparative studies...

Journal: :World Journal of Engineering and Technology 2015

Journal: :Meteorology, Hydrology and Water Management 2023

1. Bartnik A., Jokiel P., 1997, Zmiany odpływu na obszarze Polski w latach 1971-1990 świetle analiz jednorodności szeregów przepływu rzek, Wiadomości Instytutu Meteorologii i Gospodarki Wodnej, XX (XLI), 4. Google Scholar

ژورنال: علوم آب و خاک 2011
امیر حمزه حقی‌آبی, , شهرام خلیقی سیگارودی, , محمد اوژن, , محمد مهدوی, ,

Direct measurement of discharge in rivers is time-consuming and costly, and sometimes, impossible under flood conditions because of the high speed of water, its transitory nature, and the existence of different floaters along the water. Therefore, the discharge-stage relation, known as Discharge Rating Curve is used. Moreover, to design hydraulic constructions, the maximum flood discharge and i...

Karimollah Hajian-Tilaki,

This review provides the basic principle and rational for ROC analysis of rating and continuous diagnostic test results versus a gold standard. Derived indexes of accuracy, in particular area under the curve (AUC) has a meaningful interpretation for disease classification from healthy subjects. The methods of estimate of AUC and its testing in single diagnostic test and also comparative studies...

ژورنال: آبخیزداری ایران 2019
dehghan, Hadi, memariyan, Hadi,

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...

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