نتایج جستجو برای: temperature modification

تعداد نتایج: 574866  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی 1391

in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...

Journal: :نقش جهان - مطالعات نظری و فناوری های نوین معماری و شهرسازی 0
nazanin nasrollahi assistant professor, architecture department, engineering faculty, ilam university, ilam, iran fatemeh akrami abarghuie m.a. of energy in architecture, architecture department, engineering faculty, ilam university, ilam, iran

0

Journal: :journal of the iranian chemical research 0
mohammad hossein nasirtabrizi department of applied chemistry,ardabil branch, islamic azad university, ardabil, iran zeinab mohammadpoor ziaei department of applied chemistry,ardabil branch, islamic azad university, ardabil, iran aiyoub parchehbaf jadid department of applied chemistry,ardabil branch, islamic azad university, ardabil, iran

maleic anhydride (man) copolymers with methyl methacrylate(mma), ethyl methacrylate(ema), methyl acrylate(ma), ethyl acrylate (ea) and buthyl acrylate (ba) ( in a 1:1 mole ratio) were synthesized by free radical polymerizations method under vacuum -azobis(isobutironitrile)(aibn) as an initiator of reaction at 701c. the copolymer compositions were determined using related 1h nmr spectra techni...

Journal: :Infection and immunity 1981
B R Murphy H F Maassab F T Wood R M Chanock

The A/Ann Arbor/6/60 cold-adapted (ca) donor virus had a 38 degrees C shutoff temperature when tested in MDCK tissue culture. ca recombinant viruses bearing all six "internal genes" of the A/Ann Arbor/6/60 ca donor virus and the surface antigens of wild-type virus can manifest a 1,000-fold difference in plaquing efficiency at 38 degrees C. These observations suggest that the A/Ann Arbor/6/60 ca...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1389

in this project, some new polyaspartimides, (pas)s, have been synthesized form michael addition reaction between new synthetic bismaleimide (bmi) and some aromatic diamines. a characteristic property of this polyaspartimides is a pendent carboxylic group, which introduced to these polymers from new bismaleimide. bismaleimides (bmi) is one of the interesting compounds, which can be self-polymeri...

Journal: :international journal of civil engineering 0
a. qadir ned university of engineering and technology,university road karachi 75270, pakistan a. qadir ned university of engineering and technology,university road karachi 75270, pakistan

rutting in asphalt concrete is a very common form of distress in asphalt concrete pavement which unfortunately has been incurable to date. one of the prime reasons of rutting is attributed to the behaviour of asphalt binder at elevated temperature. this study has investigated the performance of polypropylene fibres modified asphalt concrete mix against rutting. two types of asphalt concrete sam...

Journal: :Journal of General Physiology 1926

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2004

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید