نتایج جستجو برای: wind instruments reducing the extractive contents didn

تعداد نتایج: 16104488  

Journal: :Acoustical Science and Technology 2001

Journal: :The Journal of the Acoustical Society of America 1963

Journal: :The Journal of the Acoustical Society of America 1932

Journal: :Nippon Jibiinkoka Gakkai Kaiho 1989

Journal: :The Journal of Japanese Society of Stomatognathic Function 2007

Journal: :Proceedings of the Physical Society of London 1875

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1391

in this project, 4,4?-methylenebis(3-chloro-2,6-diethyl trimellitimidobenzene) as a diacid, was prepared by the reaction of trimellitic anhydride (tma) with 4,4?-methylenebis(3-chloro-2,6-diethylaniline) (mcdea). the novel poly(amide-imide) (pai) was synthesized from the reaction of 4,4?-methylenebis(3-chloro-2,6-diethyl trimellitimidobenzene) as a diacid with mcdea under green condition using ...

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