نتایج جستجو برای: genetic model

تعداد نتایج: 2627866  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2008
mohammad masoori ramin bozorgmehry boozarjomehry maryam sarnavi j nafise reshadi

kinetic modeling is an important issue, whose objective is the accurate determination of the rates of various reactions taking place in a reacting system. this issue is a pivotal element in the process design and development particularly for novel processes which are based on reactions taking place between various types of species. the fischer tropsch (ft) reactions have been used as the kineti...

Journal: :journal of mining and environment 2014
s. bahrami f. doulati ardejani

in this study, a hybrid intelligent model has been designed to predict groundwater inflow to a mine pit during its advance. novel hybrid method coupling artificial neural network (ann) with genetic algorithm (ga) called ann-ga, was utilised. ratios of pit depth to aquifer thickness, pit bottom radius to its top radius, inverse of pit advance time and the hydraulic head (hh) in the observation w...

ژورنال: علوم آب و خاک 1998
امیری, رضا , رضائی, عبدالمجید ,

Diallel crosses among 6 Avena sativa L. and A. sterilis L. lines and introductions were used to evaluate the validity of the assumptions for the genetic model. Number of days to pollination, plant height at pollination and at maturity, as well as grain and stem protein percentages were evaluated. According to Griffing's method 1 the reciprocal mean squares for all the traits under study were si...

امیری, رضا , رضائی, عبدالمجید ,

Diallel crosses among 6 Avena sativa L. and A. sterilis L. lines and introductions were used to evaluate the validity of the assumptions for the genetic model. Number of days to pollination, plant height at pollination and at maturity, as well as grain and stem protein percentages were evaluated. According to Griffing's method 1 the reciprocal mean squares for all the traits under study were si...

Journal: :genetics in the 3rd millennium 0
nasrollah pirany milad manafi

the aim of the present study was to find the best or optimum topology of six chicken populations, which were genotyped based on nine highly polymorphic microsatellite markers. to reach this goal, different genetic distances based on infinite allele model (iam), stepwise mutation model (smm) and drawing phylogentic trees on un-weighted pair-group method using arithmetic averages (upgma) method w...

Journal: :مهندسی صنایع 0
محمد جعفر تارخ دانشگاه صنعتی خواجه نصیر الدین طوسی امیر ناصری کارشناسی ارشد مهندسی صنایع

in this paper, the distribution network for multi-level supply chain has been studied. products produced in factories are sent to customers through warehouses and distribution centers based on specific demands. warehouses as holding inventory facilities are located close to factories and the distribution centers are placed in the most accessible locations for services near customers. each item ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده مهندسی برق و کامپیوتر 1392

با وجود حجم بالای اطلاعات متنی، نیازمند سیستمی کارا جهت دسته بندی خودکار متون داریم. بنابراین، باید دسته بندی را طوری انجام داد که ضمن افزایش دقت، سبب کاهش زمان و هزینه شود. فرایند دسته بندی متون دارای گام‎های پیش پردازش، وزن دهی، کاهش ویژگی و دسته بندی است که برای هر گام روش‎های مختلفی تا کنون ارائه شده است. یکی از گام‎های تعیین کننده در دسته بندی، کاهش ویژگی‎ها است. این موضوع در زبان فارسی به...

Journal: :علوم دامی ایران 0
حسین محمدی مصطفی صادقی

in this study records of 15723, 12108 and 5236 zel sheep for birth weight (bw), weaning weight (ww) and 6-month weight (6mw) traits were used. data has been collected by the jahad-e-keshavarzi organization of province of mazandaran during 1994-2009. the heritability of direct and maternal of growth traits was estimated using the univariate analysis with restricted maximum likelihood (reml). in ...

In this paper, the transportation problem under the carbon emission trading program ismodelled by mathematical programming and genetic algorithm. Since green supply chain issuesbecome important and new legislations are taken into account, carbon emissions costs are included inthe total costs of the supply chain. The optimisation model has the ability to minimise the total costsand provides the ...

Journal: :مدیریت فناوری اطلاعات 0
محمود البرزی واحد علوم تحقیقات محمد ابراهیم محمد پورزرندی دانشگاه آزاد تهران مرکز محمد خان بابایی واحد علوم و تحقیقات

decision trees as one of the data mining techniques, is used in credit scoring of bank customers. the main problem is the construction of decision trees in that they can classify customers optimally. this paper proposes an appropriate model based on genetic algorithm for credit scoring of banks customers in order to offer credit facilities to each class. genetic algorithm can help in credit sco...

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