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[期刊论文] 作者:Yang Ruixia,Zhao Zhengping,Lou Jianzhong,LV Miao,Yang Yongjun,LIU Lihao, 来源:稀有金属(英文版) 年份:2003
Undoped (ND) semi-insulating (SI) liquid encapsulated Czochralski (LEC) GaAs crystals were investigated by photocurrent and temperature-dependent Hall measureme...
[期刊论文] 作者:Yong-Bin Ding,Guo-Yu Chen,Jian-Guo Xia,Xi-Wei Zang,Hong-Yu Yang,Li Yang, 来源:城市道桥与防洪 年份:2003
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥...
[期刊论文] 作者:Li-Qun Yang,Wei-Feng Yu,Yun-Fei Cao,Bin Gong,Qing Chang,Guang-Shun Yang, 来源:城市道桥与防洪 年份:2003
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥...
[期刊论文] 作者:Chuan-Yuan Hsu,Cheng-Hsin Chu,Shee-Chan Lin,Fee-Shih Yang,Tsen-Long Yang,Kuo-Ming Chang,, 来源:World Journal of Gastroenterology 年份:2003
AIM Hepatocelluar adenoma(HCA)and adenomatoushyperplasia(AH)are rare benign tumors of the liver.HCA isusually found in women who use oral contraceptives.AHusual...
[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-...
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