نتایج جستجو برای: 2012 n80

تعداد نتایج: 151395  

1991
Peter Olaf Looms

This paper adresses some of the intellectual property Issues which arose during the planning and production of SIULLEQ, a Danish multimedia project about Greenland and its culture. They include copyright, moral rights ("droite morale") and the Implications of the Danish Data Protection Act in relation to the creation, use and downloading of materials by different categories of end users. As reg...

Journal: :Agronomy 2021

Over two cropping seasons, 2017/18 and 2018/19, an experimental trial was conducted in a typical cereal-growing environment of the Calabrian hills (southern Italy) to study seeding rate (D) nitrogen fertilization (N) effects on barley F1 hybrids (Zoo Jallon) compared those traditional variety (Lutece), assessing bio-agronomic response. Barley hybrids, gradually introduced into principal Europea...

Journal: :E3S web of conferences 2023

During well repair operations in an oil field, a Φ73.02 mm×5.51 mm N80 grade flat pipe with circular hole was found. The depth of the is between 550 meters to 2100 meters, usage cycle 120 days. In order figure out root cause failure, series experiments were carried out. chemical composition, yield strength, tensile and elongation meet requirements API SPEC 5CT-2018 standard. microstructure matr...

Journal: :International Journal of Materials Science and Applications 2017

Journal: :Journal of the Association of Arab Universities for Basic and Applied Sciences 2017

Journal: :Coatings 2022

High-entropy alloys receive more attention for high strength, good ductility as well wear resistance. In this work, CoCrFeNiMn high-entropy alloy (HEA) coatings were deposited on compacted graphite iron through plasma transfer arc at different currents. The microstructure and properties of the HEA investigated. are composed single phase with FCC structure. coating had highest microhardness 394 ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده علوم طبیعی 1390

گندم (triticum aestivum l.) مهمترین گیاه زراعی روی زمین می باشد که سازش بسیار زیاد با اقلیم های گوناگون دارد. دانه-های این گیاه یک ماده غذائی با ارزش است که ترکیبات شیمیائی مختلفی از جمله ویتامین های b1 ، b2، e ، مواد چربی، گلوتن، ساکارز و پنتوزان ها را دارد. ترکیبات مختلف آرسنیک عامل مسمومیت و بازدارنده رشد گیاهان در شرایط مختلف کشت می باشند. در این پژوهش سازوکارهای مقاومت چهار رقم آبی گندم در...

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