نتایج جستجو برای: p al
تعداد نتایج: 1655458 فیلتر نتایج به سال:
Seventy Two sediments from four stations (Anzali, Tonekabon, Noshahr and Amirabad), located in Caspian Sea-Iranian coast were examined on the basis of P-fractionation in autumn and winter of 2013-2014. Several forms of the phosphorus in sediment were separated and extracted according to sequential extraction method. Then the extracted phosphorus in each fraction was determined by UV–Vis spectro...
Seventy Two sediments from four stations (Anzali, Tonekabon, Noshahr and Amirabad), located in Caspian Sea-Iranian coast were examined on the basis of P-fractionation in autumn and winter of 2013-2014. Several forms of the phosphorus in sediment were separated and extracted according to sequential extraction method. Then the extracted phosphorus in each fraction was determined by UV–Vis s...
دریاچه ارومیه در گوشه شمال غرب ایران یکی از بزرگترین دریاچه های شور و از نوع دائمی و یکی از دریاچه های فوق اشباع ازنمک دنیا است. در این تحقیق کانی شناسی و ژئوشیمی رسوبات دریاچه در نیمه شرقی از نمونه های گرفته شده از عمق 5/1 متری کف دریاچه مورد پژوهش قرار داده شد.. آنالیزهای xrd انجام شده نشان می¬دهند که کانی¬های اصلی تشکیل دهنده رسوبات دریاچه ارومیه به ترتیب فراوانی نسبی شامل کانی¬های کربناته (...
the present study seeks to find out whether or not higher scores of bilingual and multilingual speakers in raven’s intelligence test owe a debt to their bi/ multilingualism. to this end, 50 abridged versions of raven’s test were randomly distributed among a population of almost 200 freshman university students out of which forty four booklets were returned at the end of administration sessions....
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