نتایج جستجو برای: modifying the model coefficients

تعداد نتایج: 16371779  

سید اسد اله محسنی موحد, , محمد جواد منعم, ,

Poor performance of irrigation canals and its effect on decreasing of Agricultural water productivity require attention for their improvement. In this paper a new mathematical model is introduced which could present optimal operation considering downstream requirements of turnouts, canal inlet flow, actual constraints and real conditions of canal system. Four performance indicators of delivery ...

Journal: :iranian journal of medical physics 0
alireza vejdani-noghreiyan physics department, faculty of sciences, university of neyshabur, neyshabur, iran atiyeh ebrahimi-khankook physics department, faculty of sciences, university of neyshabur, neyshabur, iran

introduction international commission on radiological protection (icrp) has provided a comprehensive discussion on threshold dose for radiation-induced cataract in icrp publication 116. accordingly, various parts of the eye lens have different radio-sensitivities. recently, some studies have been performed to develop a realistic eye model with the aim of providing accurate estimation of fluence...

ژورنال: مدیریت بهره وری 2007
فرج اله رهنورد

According to the Resolution of Administrative SupremeCouncil in 1379, all public sector agencies are obliged to designand implement suggestion system. This article tries to evaluatethis system based on the CIPP Model in the Yazd Branch ofTele Communication Company. Based on this model, fourdimensions of suggestion system – Context, Input, Process, andOutput - were evaluated to find and improve ...

Journal: :iranian journal of applied animal science 2015
s. naghshineh s.a. rafat g.a. moghaddam m. ebrahimi j. shodja

pedigree information of 3972 holstein cows and bulls, from 1961 to 2008, was used to calculate inbreeding coefficients and their effects on production traits and subclinical mastitis of dairy farm cows inazerbaijan province,iran. inbreeding was included in a linear mixed model as a class variable. data were analyzed using the proc mixed of sas by mivque method. results showed that average inbre...

1996
J. S. Prakash

A 'differential measure' is used to cast our calculus for the group SU (3) into a form similar to Schwinger's boson operator calculus for the group SU (2). It is then applied to compute (i) the inner product between the basis states and (ii) an algebraic formula for the Clebsch-Gordan coefficients. These were obtained earlier by us using Gaussian integration techniques.

Journal: :international journal of environmental research 0

in this study, cross linked chitosan resin (ccr) was prepared by cross linking chitosan with glutaraldehyde, and then î±-ketoglutaric acid-modified chitosan resin (kcr) was obtained by modifying ccr with î±-ketoglutaric acid. the sorption behavior of methylene blue (mb) on kcr and ccr from aqueous solution was investigated. the effect of various experimental parameters (e.g. initial ph, sorbent...

Journal: :آب و خاک 0
رمضانی اعتدالی رمضانی اعتدالی نظری نظری توکلی توکلی پارسی نژاد پارسی نژاد

abstract: deficit irrigation technique can be used for produce more yield for every unit of irrigation water, and cause to increase crop economical benefit. main purpose of deficit irrigation is high water use efficiency with decreasing in irrigation sufficiency. in this research potential of cropwat model in deficit irrigation management for two crops, wheat and barley in karaj climate was stu...

2006
Jeremy T. Fox Kyoo il Kim Stephen P. Ryan Patrick Bajari

The random coefficients multinomial choice logit model, also known as the mixed logit, has been widely used in empirical choice analysis for the last thirty years. We prove that the distribution of random coefficients in the multinomial logit model is nonparametrically identified. Our approach requires variation in product characteristics only locally and does not rely on the special regressors...

In this work, we develop a correlative model based on the surface tension data in order to calculate thermodynamic parameters, such as interaction energy between components (Uij), activity coefficients and etc. In the new approach, by using Li et al. (LWW) model, a three-parameter surface tension equation is derived for liquid mixtures. The surface tension data of 54 aqueous and 73 non-aqueous ...

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