نتایج جستجو برای: water and water
تعداد نتایج: 16930158 فیلتر نتایج به سال:
We review recent developments and applications of aldolase-type organocatalytic direct transformations in aqueous media without addition of organic solvent.
چکیده پارامترهای ژئومورفیک از عوامل تعیین کننده و تاثیر گذار بر کیفیت اکولوژیکی رودخانه ها هستند. کیفیت فیزیکی و شیمیایی آب رودها میتواند متاثر از لیتولوژی موجود در حوضه آبریز ، جنس رسوبات حمل شده به رودخانه و عوامل زیستی باشد. در این تحقیق، پارامترهای تاثیر گذار بر کیفیت شیمیایی آب رودخانه کرج در دو ایستگاه سیرا و بیلقان مورد بررسی قرار گرفته است. با استفاده از ایستگاه های هیدرومتری موجود بر...
چکیده ندارد.
در تحقیق حاضر رفتار حرارتی و هیدرودینامیکی جریان نانوسیالات در مبدل های حرارتی به صورت تجربی مورد مطالعه قرار گرفته است. بدین منظور دو نوع نانوسیال با نانوذرات معلق یکسان آلومینا (γ-al2o3) و سیالات پایه متفاوت مورد بررسی قرار می گیرد. نانوسیال اول با معلق ساختن نانوذرات آلومینا در آب مقطر ساخته می شود در حالی که نانوسیال دوم از ترکیب همان نانوذره در آب واحد tempered water پالایشگاه اصفهان که حا...
background : collection and storage of roof rain water have been practiced for long time ago in iran and many other countries. water of cisterns is usually used as potable water. in golestan province many of rural torkman residents reservoir the most part of their potable water from roof rain in cisterns. in this province there are over 2600 cisterns. methods : to study the water quality, micro...
the aim of this study was to investigate the effect of the addition of commercial lipase in various forms on the acceleration of the ripening of uf-feta cheese. commercial lipase from aspergillus niger was encapsulated by using silica composition based on sol-gel method. lipase was then added to cheeses in three forms, namely, free lipase, encapsulated lipase, and encapsulated lipase with arabi...
support their peri-urban futures by providing irrigation water for food production. Over 1.1 million ha of land could be irrigated if the city waters are rendered safe for use. While the practice of periurban agriculture using city water is not a new phenomenon in India, its full potential has not been fully explored, due to poor/marginal quality and lack of adequate institutional arrangements ...
the aim of this study was to investigate the effect of the addition of commercial lipase in various forms on the acceleration of the ripening of uf-feta cheese. commercial lipase from aspergillus niger was encapsulated by using silica composition based on sol-gel method. lipase was then added to cheeses in three forms, namely, free lipase, encapsulated lipase, and encapsulated lipase with arabi...
this project aims at collecting and cataloging the information pertaining to the research projects and documents concerning water resource. the data collected along with abstracts were entered into worksheets in compliance with us- marc bibliographic format. they were fed into the computer following the necessary validation process. so far more than 5000 documents (proceedings, research report,...
abstract in order to optimize the water management in agriculture in semi arid and arid conditions water-salinity function should be evaluated. in order to evaluate salinity and deficit irrigation two experiments were conducted in 2008 and 2009. kochia was grown with six levels of saline water (1.5, 7, 14, 21, 28, and 35 ds/m) and three levels of applied water (25, 75, and 125 percent of the wa...
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