نتایج جستجو برای: 3 and b 1
تعداد نتایج: 17501112 فیلتر نتایج به سال:
this work is presented in five parts. in the first part preparation of the starting complex [pt(c^n)cl(dmso)], 1, in which c^n = n(1),c(2?)-chelated, deprotonated 2-phenylpyridine, and dmso = dimethylsulfoxide, and its reaction with 1 equiv of the biphosphine ligands bis(diphenylphosphino)amine, dppa, or bis(diphenylphosphino)methane, dppm, to give the complex [pt(c^n)cl(dppa)], 2, or [pt(c^n)c...
using qcd factorization for the hadronic matrix elements, we show that existing data, inparticular the branching ratios br ( b →j/ψk) and br ( b →j/ψπ), can be accounted for in this approach.we analyze the decay b j /k( ) within the framework of qcd factorization. the calculation of therelevant hard-scattering kernels for twist-2 and twist-3 is completed. we calculate this decay in a special...
purpose a metabolic abnormality such as obesity is a major obstacle in the maintenance of the human health system and causes various chronic diseases including type 2 diabetes, hypertension, cardiovascular diseases, as well as various cancers. this study was designed to summarize the recent scientific knowledge regarding the anti-obesity role of curcumin (diferuloylmethane), which is isolated f...
in this article, we have focused one some basic and productive information about the properties of spectrum and singular values related to compact operators which are ideals in a c*-algebra of bounded operators. considering a two-sided connection between the family of symmetric gauge functions on sequence of singular values of compact operators and symmetric norms on finite dimensional ope...
abstract this study aimed at investigating the translation of interjections from english into persian in dubbing. to carry out this study the expressive secondary interjections found in the film four weddings and a funeral and their equivalent in persian dubbed version were analyzed through the strategies proposed by cuenca. the descriptive analysis of the corpus showed that (strategy b) i.e...
قسمت اول : کوشش برای تهیه 1 و 2 - دی فنیل نفتاسینو [b] سیکلوبوتادین طبق روش زیر انجام گرفت و بجای آن ترکیب دو استخلافی (5) تولید گردید. قسمت دوم : تهی 2 و 3 - دی فنیل کونیولینو [b] سیکلوبوتادین . تهیه 2 و 3 - دی فنیل کونیولیون [b] سیکلوبوتادین (9) طبق روش زیر عملی گردید. در طول واکنش تهیه 2 و 3 - دی فنیل [b] سیکلوبوتادین دو ترکیب دیگر (10) و (11) تولید گردید که بوسیله روش کروماتوگرافی از یکدیگر...
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