نتایج جستجو برای: 3663 and 3732 percentage
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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 ...
We prove that perturbing the periodic annulus of reversible quadratic polynomial differential system $\dot x=y+ax^2$ , y=-x$ with a ≠ 0 inside class all systems we can obtain at most two limit cycles, including their multiplicities. Since first integral unperturbed contains an exponential function, traditional methods cannot be applied, except in Figuerasa, Tucker and Villadelprat (2013, J. Dif...
objectives: the percentage of vowel correct (pvc) is one of the indices in the development of articulation and phonological skills in children that can be measured with speech samples that could be extracted from the single word or connected speech tests. the aim of this study is to introduce the pvc scale in persian speaking children and investigate its validity and reliability. methods: this ...
The virtual screening problems associated with acetylcholinesterase (AChE) inhibitors were explored using multiple shape, and structure-based modeling strategies. The employed strategies include molecular docking, similarity search, and pharmacophore modeling. A subset from directory of useful decoys (DUD) related to AChE inhibitors was considered, which consists of 105 known inhibitors and 373...
a NXP Semiconductors, Central R&D, FT/Physical Design Methods/Mathematics, High Tech Campus 46, 5656 AE Eindhoven, the Netherlands; {Joost.Rommes,Jan.ter.Maten, Wil.Schilders}@nxp.com. b Koninklijk Nederlands Meteorologisch Instituut, Wilhelminalaan 10, 3732 GK De Bilt, the Netherlands; [email protected]. c Bergische Universität Wuppertal, Angewandte Mathematik/Numerische Analysis, Gauß...
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