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[期刊论文] 作者:Qing-Han Li,Yong Ding,Xue-Jun Yang,,
来源:Chinese Chemical Letters 年份:2014
We describe a convenient method for the synthesis of 1,2-disubstituted acetylenes via a cross-coupling reaction of(bromoethynyl)benzene with Grignard reagents.T...
[期刊论文] 作者:Qing-Han Li,Yong Ding,Neng-Wang Huang,,
来源:Chinese Chemical Letters 年份:2014
Twelve novel dithiocarbamates containing 1,2,3-trizaoles group were prepared via one step starting from organic halides, dithiocarbamic acid prop-2-ynyl ester,...
The Application of Ridge Regression in Dynamic Balancing of Flexible Rotors Based on Influence Coeff
[期刊论文] 作者:QIN Peng,CAI Ping,HU Qing-han,LI Ying-xia,
来源:上海交通大学学报(英文版) 年份:2006
Based on the model structure of the influence coefficient method analyzed in depth by matrix theory,it is explained the reason why the unreasonable and instable...
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