搜索筛选:
搜索耗时1.3301秒,为你在为你在102,285,761篇论文里面共找到 1,000 篇相符的论文内容
发布年度:
Substitution Reaction of Nitro Group on α-Nitrostyrene by Organozinc Halides under Microwave Irradia
[期刊论文] 作者：ZHAO Lian-Biao WANG Ke-Hu ZHAN,
来源：有机化学 年份：2003
In recent years, organozinc reagents (R2Zn and RZnX) have been proved to be very useful in organic synthesis. [1] And the application of organozinc halides (RZn...
A Simplifed and Efficient Synthesis of 7-Hydroxymethyl-6,7- Dihydropyrro- [ 1,2- c ]-Pyrimidine-1,3-
[期刊论文] 作者：WANG Xiao-Wei ZHANG Zhi-Li HAN,
来源：有机化学 年份：2003
The reverse transcriptase of HIV provides a key target for the development of anti-AIDS drugs. The discovery of 1-[ 2-hydroxyethoxymethyl]-6-phenylthio-thymine...
Study on Inhibitors of Methionine Synthase Ⅷ: Synthesis of 2,5-Diamino-4-oxo-6- (3-butenyl) pyrimidi
[期刊论文] 作者：ZHANG Zhi-Li WANG Hong-Tao WAN,
来源：有机化学 年份：2003
Cobalamin-dependent methionine synthase plays a crucial role in folate metabolism and such would appear to be an excellent target for rational antifolate drug d...
Recognition and Significance of Volcanic Rocks of the Anda Depression of the Songliao Basin in Juras
[期刊论文] 作者：Fuhong Gao Dongpo Wang Xinrong,
来源：世界地质：英文版 年份：2003
A series of volcanic rocks were developed in the deep part of Anda faulting depression. The reflection of therocks are mainly stratiform and hummocky. Three kin...
[期刊论文] 作者：Qinghai Wang Wenliang Xu Dongy,
来源：世界地质：英文版 年份：2003
The research of the petrology and the geochemistry of the Mosozoic intrusive rocks in Xu-Huai area indicated that they are mainly composition of dioritic porphy...
[期刊论文] 作者：杨万勤,WANG Kaiyun,
来源：世界科技研究与发展 年份：2003
土壤生态过程是川西亚高山针叶林生态系统过程研究中最具挑战性的研究领域 ,也是森林生态系统功能和过程研究中不可或缺的研究重点。土壤生态过程研究将有助于深入了解森林生...
[期刊论文] 作者：Feng Wang Bin Yang 等,
来源：北京科技大学学报：英文版 年份：2003
Al-20Si-5Fe-3Cu-lMg alloy was synthesized by the spray atomization and deposition technique. The microstructure and mechanical properties of the spray deposited...
The Mechanics Analysis of the Credit Focus Performance and the Formation of its Credit Risk in China
[期刊论文] 作者：Yichun Wang,Linyan Sun,Xunlian,
来源：中国经济评论：英文版 年份：2003
...
[期刊论文] 作者：WANG Shuliang LI Deren 等,
来源：地球空间信息科学学报：英文版 年份：2003
Rough set is a new approach to uncertainties in spatial analysis.In this paper,rough set symbols are simplified and standardized in terms of rough interpretatio...
[期刊论文] 作者：Wang,Yan,Li,Chu-lin,等,
来源：武汉大学学报：自然科学英文版 年份：2003
This paper emphasizes the effect of spillovers on R＆D (Research and Development) level. When competing firms have spillovers to each other in R＆D, cooperation wil...
Reproductive Biology and Prospects for Conservation of Caldesia parnassifolia (Alismataceae)--A Thre
[期刊论文] 作者：Gituru Wahiti Robert Wang Qing,
来源：武汉大学学报：自然科学英文版 年份：2003
Caldesia parnassifolia (Bassi ex Linn.) Parl. in China has declined in number in recent years and is increasingly faced with the risk of extirpation arising fro...
[期刊论文] 作者：Ma,Shu-hua,Wang,Dun-cheng,等,
来源：武汉大学学报：自然科学英文版 年份：2003
79 ESTs fragments which represents corresponding novel genes were obtained by sequencing and bioinformatics analysis of human fetal kidney cDNA library. Microar...
Spectroscopic Studies of a Three-dimensional,Five-coordinated Copper(Ⅱ） Complex via Hydrogen Bonds:[
[期刊论文] 作者：WANG,Wen-zhen,JIANG,Zong-hui,等,
来源：高等学校化学研究：英文版 年份：2003
A new copper(Ⅱ） complex[Cu(PDA)(H2O)2] was synthesized and its structure was determined.Cu(Ⅱ）is five-coordinated in a tetragonal pyramid geometry.The two coordi...
[期刊论文] 作者：WANG,Xiu-li,XIN,Ming-hong,等,
来源：高等学校化学研究：英文版 年份：2003
Lithium heteropoly blue(Li5PWⅥ10WⅤ2O40) was used as a non-aqueous electrolyte in the polyacenic semiconductor (PAS)-Li secondary battery instead of LiClO4. Th...
[期刊论文] 作者：LIU,Jing-fu,WANG,Xiao-hong,等,
来源：高等学校化学研究：英文版 年份：2003
The effect of the functionallization of POMs on their properties was examined by the comparison between both titanium and its corresponding cyclopentadienyl sub...
[期刊论文] 作者：ZHAO Lei WANG Shi-min 等,
来源：高等学校化学研究：英文版 年份：2003
The design and the synthesis of two conjugated donor-acceptor imidazole derivatives(1, 2) were carried out for second-order nonlinear optics. The thermal proper...
[期刊论文] 作者：WANG Bai-jing WEI Min 等,
来源：高等学校化学研究：英文版 年份：2003
A water soluble crude polysaccharide has been isolated from the fruiting body of cultivated Cordyceps militarvs(L.)Link.The GC analysis indicated that it contai...
Spheroidization and Ostwald Growth of Carbide in Isothermal Process of Hot—Deformed High Carbon Chro
[期刊论文] 作者：CHANG Li-min,LIU Jian-hua,WANG,
来源：钢铁研究学报：英文版 年份：2003
In isothermal spheroidizing process, the spheroidization and growth of the carbide formed in hot-deformed high-carbon chromium cast steel at high temperature we...
[期刊论文] 作者：WANG Ying YUAN Cheng-Shan JIA,
来源：有机化学 年份：2003
The genus Cacalia (Compositae) is widespread in East Asia. In China, many species of Cacalia have long been used as traditional medicine in the treatment of inv...
[期刊论文] 作者：WANG Shengjie SHEN Jiandong HA,
来源：化工学报 年份：2003
Natural gas hydrates are crystalline clathrate compounds composed of water and gases of small molecular diameters that can be used for storage and transport of...
相关搜索：
