نتایج جستجو برای: direct genetic trend

تعداد نتایج: 1123841  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده علوم پایه 1391

ددر این تحقیق استفاده از کربن اکتیو ، ذرات نانو مغناطیسی آهن و ذرات نانو کامپوزیت آهن- کربن اکتیو، برای حذف رنگ آنیونی از پسابهای سمی مورد مطالعه قرار گرفتند . رنگ direct orange -26 به عنوان مدلی از رنگ آنیونی مورد بررسی قرار گرفت. مشخصات سطحی نانو ذرات آهن و نانو کامپوزیت آهن توسط sem مورد بررسی قرار گرفت . تاثیر عوامل مختلف (ph ، دوز جاذب، زمان تماس، دور هم زدن) به روش طراحی آزمایش تاگوچی مور...

Journal: :علوم دامی 0
الهام بهدانی دانش آموخته دکتری ژنتیک و اصلاح نژاد دام، دانشگاه کشاورزی و منابع طبیعی رامین- خوزستان هدایت اله روشنفکر هیئت علمی دانشگاه کشاورزی و منابع طبیعی رامین- خوزستان آذر راشدی ده صحرایی دانش آموخته دکتری ژنتیک و اصلاح نژاد دام، دانشگاه کشاورزی و منابع طبیعی رامین- خوزستان

in this study, genetic parameters and (co)variance components were estimated for weights at birth, 3, 6, 9, 12, 24 months, daily weight gain from birth to 3 months and daily weight gain from 3 month to 12 month, keliber ratio from birth to 3 months and keliber ratio from 3 to 12 month, and production of fleece for south khorasan goats at sarbisheh station over a period of 16 years (1996–2012). ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه لرستان - دانشکده ادبیات و زبانهای خارجی 1393

rested on sociocultural theory (sct), this study attempted to examine the effect of written corrective feedback (wcf) followed by producing written languaging on developing writing accuracy over new tasks. to this aim, two intact iranian efl classes at the low-intermediate level were randomly assigned to two experimental groups: direct (n = 25) and indirect (n = 25). both groups wrote on a numb...

Journal: :journal of advances in environmental health research 0
yahya zandsalimi environmental health research center, kurdistan university of medical sciences, sanandaj, iran anoushiravan mohseni-bandpei department of environmental health, faculty of health, shahid beheshti university of medical sciences, tehran, iran hiua daraei environmental health research center, kurdistan university of medical sciences, sanandaj, iran loghman alaei institute of biochemistry and biophysics, university of tehran, tehran, iran sang w. joo school of mechanical engineering, yeungnam university, gyeongsan 712-749, republic of korea

. the sonocatalytic activity of nano-sized zno powder was studied via the degradation of the direct blue 71 azo dye. the nano-sized zno powder that was selected was the same as that which was synthesized and characterized in our previous study. the influences of six operational parameters including the initial ph, the initial concentration, the dose of sonocatalyst, the ultrasound frequency, th...

لطفی, رضا , فرهنگ فر, همایون , نعیمی‌پور , حسین ,

This study was undertaken to estimate genetic trend and parameters of Holstein cattle in Khorasan province for milk yield using a spline random regression test day animal model. A total of 32854 monthly test day milk records (twice and thrice a day milking) obtained from 3842 Holstein heifers (progeny of 466 sires) distributed in 125 herds and calved from 2001 to 2005 was used to predict breedi...

Journal: :journal of livestock science and technologies 2015
m. s. mokhtari m. moradi shahrbabak a. nejati javaremi g. j. m. rosa

the main objective of this study was to estimate the genetic parameters for multi-trait evaluation of birth weight (bw), gestation length (gl) and calving difficulty (cd) in first-parity iranian holstein dairy cattle. the data included 29,950 calving records collected during 1995 to 2014 by the animal breeding and improvement center of iran. a threshold-linear sire-maternal grandsire model was ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهرکرد - دانشکده ادبیات و علوم انسانی 1389

current studies in second language (l2) learning have revealed the positive role of corrective feedback (cf) in both oral and written forms in different language features. the present study was an attempt to investigate the effect of both direct and indirect written corrective feedback (wcf) on the use of grammatical collocations in l2 writing. the study also sought to examine whether the effec...

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