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[期刊论文] 作者:戴长春,SU Xiao-di,Hou Tee Ng,Li F, 来源:电子显微学报 年份:2003
虽然扫描探针显微镜具有高分辨率等优异性能,但不足之处也显而易见.较低的扫描和采样速度使工作效率不高.多探针或多探头的概念就是为提高扫描探针显微镜的工作效率而提出的....
[期刊论文] 作者:XU Ning(许宁) SU Weiyi(苏维宜), 来源:中国科学:数学英文版 年份:2003
We will give better estimates of a kind of nonisotropic fractal drum....
[期刊论文] 作者:Yang Guang-Can(杨光参),Wang Li(汪力),Yang Guo-Zhen(杨国桢), 来源:中国物理(英文版) 年份:2003
The excitonic level structure of a ring-like chain of dimers is discussed analytically in order to aid the understanding of the possible spectral properties of...
[期刊论文] 作者:DU Chang-long(杜长龙),YANG Shan-guo(杨善国),YANG Xiu(杨秀), 来源:煤炭学报(英文版) 年份:2003
On the basis of analysis of the present roofbolter\'s structures, the pneumatic vane motor roofbolter was proposed and researched. Structure principle of MFT-80Y type pneumatic vane motor roofbolter was expounded, a new project of the rotar......
[期刊论文] 作者:YANG Xiaosong MA Jin JIN Zhenm, 来源:地质学报:英文版 年份:2003
In order to constrain the crustal wave velocity structure in the southern Tibetan crust and provide insight into the contribution of crustal composition, geothe...
[期刊论文] 作者:YANG Yixin SUN Chao MA Yuanlia, 来源:声学技术 年份:2003
In modern active and passive sonar systems, broadband beamforming for acoustic arrays is widely used to suppress unwanted interference and to detect target sign...
[期刊论文] 作者:Yang M. Mahfouf D.A.Link, 来源:材料科学技术:英文版 年份:2003
The accuracy of numerical simulations and many other material design calculations, such as the rolling force, rollingtorque, etc., depends on the description of...
[期刊论文] 作者:Mei ZHAN He YANG Yuli LIU, 来源:材料科学技术:英文版 年份:2003
With the development of computer technology and finite element method, the priority research area of plasticforming has focused on 3D FE simulation of forming p...
[期刊论文] 作者:Yang,朱新民,魏宏阳, 来源:中国畜牧兽医 年份:2003
关于日粮添加VE对谷物饲养牛的肉脂氧化和肉色影响的研究很多,而对放牧牛的关注很少,放牧牛肉中可能含有大量的天然α-生育酚和胡萝卜素。本研究评价了仅仅采食牧草与补饲VE对......
[期刊论文] 作者:YANG Jun-he,FENG An-zu,DU He-gui,, 来源:Journal of Iron and Steel Research(International) 年份:2003
The catalytic effects of minerals (oxides) on solution loss reaction of coke were investigated in detail by adding oxides to coal which produces coke or absorbi...
[期刊论文] 作者:Rui Yang Biqian Liu Qijun Luo, 来源:海洋学报:英文版 年份:2003
Genetic variation of 11 lines of Porphyra yezoensis from the coastline of Kagoshima ofJapan, Qingdao, Nantong, Putuo and Nanji Islands of China were studied by...
[期刊论文] 作者:ZHANG Tao YANG Li-Ting LIU Hua, 来源:有机化学 年份:2003
Andirolactone 1 as the dextro enantiomer is a sesquiterpenoid with structure of spirocyclic butenolide, isolated from the wood of cedar ( Cedrus libanotica ), w...
[期刊论文] 作者:ZHOU Ling YANG Yong-Gang CAO X, 来源:有机化学 年份:2003
Gibbilimbols (1) were isolated from the leaves of Piper gibbilimbum in Papua New Guinea, which showed cyto toxicity toward KB nasopharyngal cancer cells (EDs0 2...
[期刊论文] 作者:LIN He-Chun YANG Li LI Chao-Zh, 来源:有机化学 年份:2003
We report here the first alkyl radical additions of (η6-arene)tricarbonylmanganese complexes in the presence of alkylmercury chloride and NaI (Eq. 1). The mech...
[期刊论文] 作者:YANG Xue-Mei LIU Ling-Yan LI B, 来源:有机化学 年份:2003
Recently, much concentration has been focused on chiral macrocyclic amides that bear the dual features of macrocyclic polyamines and oligopeptides, which can ac...
[期刊论文] 作者:YANG Bing-Qin ZHU Ai-Lin SUN J, 来源:有机化学 年份:2003
There exists a close relationship between the field of synthetic host-guest chemistry and molecular recognition in biological systems. Artificial host-guest sys...
[期刊论文] 作者:WANG Min YANG Liang-Ru ZHANG J, 来源:有机化学 年份:2003
Transition-metal catalyzed reaction represents an extremely versatile method in organic synthesis. [1] Searching for highly efficient catalysts has been the aim...
[期刊论文] 作者:YANG Zhen-Jun Chung K. Chu ZHA, 来源:有机化学 年份:2003
We have described a novel use of the D4G prodrug (Cyclo-D4G) approach to stabilize the nucleoside and maintain the anti-HIV activity. β-D-Dioxolanyl-2-amino-6-...
[期刊论文] 作者:ZHANG Wei GUO Yan-Ping YANG Li, 来源:有机化学 年份:2003
Imino Diels-Alder reactions between N-arylimines and electron-rich dienophiles provide an easy entry into the tetrahydroquinoline derivatives. [1] This imino Di...
[期刊论文] 作者:Xiao,Yin,YANG,Christian,HAUG,等, 来源:中国化学快报:英文版 年份:2003
The structure of syn- and anti-Nb-(p-toluenesulfonyl)-3a-hydroxyl-1, 2, 3, 3a, 8, 8a-hexahydro pyrrolo[2,3-b] indole-2-carboxylic t-butyl ester was stereoselect...
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