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[期刊论文] 作者:Changying Wang,Xinyu Ye,
来源:中国经济评论:英文版 年份:2003
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[期刊论文] 作者:Hui Xu,Yao Wang,
来源:中国经济评论:英文版 年份:2003
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[期刊论文] 作者:Wang Xu, Zhong Zheng,
来源:固体力学学报:英文版 年份:2003
A decagonal quasicrystal,which is weakened by an arc-shaped crack penetratingthrough the solid in the period direction,and which is subjected to remote uniform...
[期刊论文] 作者:WU Xiao-Wei WANG Jin-Xian,
来源:有机化学 年份:2003
The oxirane ring opening[1] with various nuclephiles is an important synthetic transformation to allow easy ac cess to a large number of functionalized intermed...
[期刊论文] 作者:GU Xiaohui WANG Shuyou,
来源:声学技术 年份:2003
The prediction of helicopter′s track is very important for Anti-Helicopter Mine System (AHMS) in the battle. However, it is very difficult to get an accurate a...
[期刊论文] 作者:KANGZhihua RAOJun ZHOUJun WANG,
来源:核工业西南物理研究院年报:英文版 年份:2003
By using the physical characteristic of the titanium when it is subliming, fourteen titanium balls are fixed in the vacuum chamber to improve the background of...
[期刊论文] 作者:Yanting Li Zhaojun Wang,
来源:数理统计与管理 年份:2003
[1]Brook. D and Evans. D. A. (1972), An Approach to the Probability Distribution of CUSUM Run Length. Biometrika, VOL. 59, Issue 3, 539-549.[2]Feller. W. (1971), An...
[期刊论文] 作者:Lijuan WANG Chunli ZHANG,
来源:材料科学技术:英文版 年份:2003
In order to master mechanical property, surface quality and microstructure of constraint cooling (CC) coils undervarious water cooling parameters, more than 100...
[期刊论文] 作者:Zeng Jing Wang Jing-tao,
来源:武汉大学学报:自然科学英文版 年份:2003
The soil constitutive relation is one of the important issues in soil mechanics. It is very difficult to establish mathematical models because of the complexity...
[期刊论文] 作者:WANG Yu-Lu ZHOU Yong-Bo,
来源:有机化学 年份:2003
The selective reduction of carbon-carbon double bonds of α, β-unsaturated carbonyl compounds has attracted great interest in organic synthesis. Of many reduct...
Reduction of Aromatic Nitro Compounds under Solvent-free Condition Using Almnina-suppored Hydrazine/
[期刊论文] 作者:WANG Yu-Lu ZHANG Chang-Rui,
来源:有机化学 年份:2003
The application of microwave techniques for chemical synthesis has attracted considerable interest in recent years because of their enhanced selectivity, reduce...
Synthesis of 3- [ 1- (4-Ethoxyphenyl)-5-methyl-1,2,3-triazol-4-yl ]-6- substituted- s-triazolo [ 3,4
[期刊论文] 作者:DONG Heng-Shan WANG Bin,
来源:有机化学 年份:2003
Several 3- [ 1- (4-ethoxyphenyl)-5-methyl- 1,2, 3-triazol-4-yl ]-6-substituted-s-triazolo [ 3,4- b ]- 1,3,4-thiadia zoles have been synthesized and the structur...
[期刊论文] 作者:Wei,Wang,Bo,Feng,
来源:中国天文和天体物理学报:英文版 年份:2003
We study several quintessence models which are exotic at Q = 0, anduse a simple constraint Q ≥ H/2π to check when they enter the tracking regime,disregarding...
[期刊论文] 作者:WANG Zai-you,ZHU Jin-hua,,
来源:Journal of Iron and Steel Research(International) 年份:2003
The cavitation resistance of six kinds of austenitic metals was investigated using a rotating disc rig. The research results show that cavitation resistance of...
[期刊论文] 作者:WANG Zhen-yao,CHEN Hong-chuan,,
来源:钢铁研究学报:英文版 年份:2003
According to the results of four-year exposure tests for carbon steel samples in Hainan province, the influences of meteorological factors and Cl- on atmospheri...
[期刊论文] 作者:WuQifan,JiaWenyi,FangFang,Wang,
来源:中国地质大学学报:英文版 年份:2003
Radon concentrations in high background radiation areas in the south are higher than those of others in China, especially 220Rn concentration is significantly h...
[期刊论文] 作者:Wang Lanhui Cai Fei,
来源:中国林学:英文版 年份:2003
The forest estate is one of our most important natural resources. It is also the material foundation for sustainable forestry development in China. It is a time...
[期刊论文] 作者:Chengyuan Wang W.Ziegler Ch.Mi,
来源:世界地质:英文版 年份:2003
Conodont Caudicriodus woschimidti woschmidti has been found from a big outcrop (hill) of the Bayan-Kho-shuu Ruins Section which was previously assigned to the S...
[期刊论文] 作者:王乾,Wang Kaiyun,
来源:世界科技研究与发展 年份:2003
本文回顾了目前已发表的有关川西地区云冷杉林光能利用率的研究资料,从概念、测量方法、研究结果、影响因子等几个方面做了比较,发现川西地区森林净初级生产力和叶面积指数(L...
[期刊论文] 作者:CHEN Feng,WANG Si-you,
来源:针灸推拿医学(英文版) 年份:2003
Yaoyangguan ( GV 3 ), Shiqizhui ( Ex-B 8) and Yanglingquan (GB 34) were selected as main points and a three-part needle insertion technique was used to treat 32...
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