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Syntheses, Characterization and Antitumour Activities of Rare Earth Metal Complexes with 2- ( ( (4,6-dimethyl)-2-Pyrimidinyl )thio )-Acetic Acid 总被引:2,自引:1,他引:2
Pyrimidineringsystemswhichcontainmercapto grouphaveverycloserelationshiptosulphuranalogues oftheDNAbases.Mostofthosecompoundswerere portedtobetumorinhibitors,antimycotic,antileuke mic,tuberculoatat,antithyroid,andhypoglycaemic agentsandhaveattractedinterestofmany chemists[1~6].Nigametal[6]synthesizedcorresponding4,6dimethyl5(arylazo N substitutedp sulphamyl benzeneazo)pyrimidin2thiolsbycondensationof4,6dimethylpyrimidinyl2thiolwithdifferentdiazotised bases,invitroalltheobtainedthiolcompounds… 相似文献
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SPH中的内外单元粒子搜索技术 总被引:1,自引:0,他引:1
本文应用SPH数值逼近方法离散NS方程,建立了二维水动力数值模型.自由表面施加Dirichlet条件,固边界采用固定壁粒子,镜像粒子施加完全滑移条件,压力采用状态方程计算.提出了内外单元粒子搜索技术,计算效率较传统的DSM和Mihai方法有显著提高,对粒子数量超大的情况也有良好的表现.采用溃坝算例验证模型的可靠性. 相似文献
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