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[期刊论文] 作者:KE,Shao-Yong WEI,Tai-Bao XUE,S, 来源:有机化学 年份:2004
Acylthiourea derivatives are useful as pesticides, herbicides, fungicides and regulator for plant growth, and also as important intermediates in the organic syn...
[期刊论文] 作者:SHAO,Pin LUO,Jian-Lin GONG,Wei, 来源:有机化学 年份:2004
It is a new interest to explore novel organic two-photon absorption (TPA) chromophores with large TPA cross section for their potential applications in various...
[期刊论文] 作者:MA,Yuan LIU,Wei ZHAO,Yu-Fen, 来源:有机化学 年份:2004
Ring contraction reactions of heterocyclic compounds under mass ionization conditions are important and interesting phenomenon.[1] It should be very useful to e...
[期刊论文] 作者:WANG,Shu-Xiang WANG,Wei LI,Ji-, 来源:有机化学 年份:2004
Acylhydrazine and hydrazine are highly reactive chemicals that have a wide spectrum of uses such as in the chemical and pharmaceutical industries and as a fuel...
[期刊论文] 作者:Zhang Jingmin Wu Wei Fang Chan, 来源:岭南心血管病杂志:英文版 年份:2004
Objectives To investigate the effects of adrenergic receptor antagonist ( metoprolol or prazosin) on myocardial α1-AR density and the changes of ventricular ef...
[期刊论文] 作者:Chunchun Cao,Qing Zhou,Wei Cen, 来源:中美英语教学 年份:2004
[期刊论文] 作者:Shuili Gong Li Chen Wei Yao, 来源:航空制造技术 年份:2004
针对2.5 mm厚BT20钛合金进行了CO2激光焊和YAG激光焊研究,结果表明:由于激光特性不同,形成的焊缝几何特征不同,当焊接工艺适当,可保证焊接过程的稳定性和焊接接头的质量.在激...
[期刊论文] 作者:YAN Wei YAO Qing-zhi BAO Yu-yi, 来源:新疆大学学报:自然科学版 年份:2004
The vegetation of Da Qin Mountain, which is located in Yellow River upper basin, is one of the most threatened ecosystems in north-western of Inner Mongolia of...
[期刊论文] 作者:LI Wei HAO Er-jun JIANG Yu-qin, 来源:合成化学 年份:2004
As we all known that diabetes is a chronic disease with major health consequences.Research has revealed that the occurrence of diabetes have great thing to do w...
[期刊论文] 作者:SHEN De-jiu WANG Yu-lin GU Wei, 来源:中国有色金属学会会刊:英文版 年份:2004
Firstly, an aluminum coating was produced metallurgically on mild steel by hot-dipping, then an aluminum oxide coating was formed self-growingly from the alumin...
[期刊论文] 作者:ZHANG Wei ZHANG Shu XU Wei-pu, 来源:中国有色金属学会会刊:英文版 年份:2004
Fe-Al based intermetallic composite coatings were in-situ synthesized using Fe-Al/Cr3C2 or Fe-Al/WC cored wires and high velocity are spraying (HVAS) technology...
[期刊论文] 作者:Yang guirong Zhang wei Li li, 来源:中国心脏起搏与心电生理杂志 年份:2004
Objective Atrial fibrillation (AF) is commonly associatedwith atrial dilation and fibrosis, but the mechanism underlying these abnormalities remains unclear. Th...
[期刊论文] 作者:Zhang wei Yang guirong Zheng z, 来源:中国心脏起搏与心电生理杂志 年份:2004
Objective Integrin β1 regulates cell to cell and cell to extracellualr matrix interaction in heart. however, its pathop hysiological role in atrial fibrillatio...
[期刊论文] 作者:Wei Baoren Ma Xinwen Zhu Xiaol, 来源:近代物理研究所和兰州重离子加速器实验室年报:英文版 年份:2004
The production of multiply charged C60 ions and the mass spectra resulting from fragmentation process of these ions are of particular interest in obtaining...
[期刊论文] 作者:Wei Baoren Chen Li R.Bredy J., 来源:近代物理研究所和兰州重离子加速器实验室年报:英文版 年份:2004
During the last years, many investigations were devoted to low energy highly charged ion-fullerene Cgo target collisions. The Cgo is an isolated target that...
[期刊论文] 作者:Liu Huiping Ma Xinwen Wei Baor, 来源:近代物理研究所和兰州重离子加速器实验室年报:英文版 年份:2004
[期刊论文] 作者:Zhu Xiaolong Ma Xinwen Wei Bao, 来源:近代物理研究所和兰州重离子加速器实验室年报:英文版 年份:2004
The collision processes of highly charged ions with molecules are of fundamental interests. These processes will help to shed light on problems as diverse a...
[期刊论文] 作者:Wang Zhenglin Ma Xinwen Wei Ba, 来源:近代物理研究所和兰州重离子加速器实验室年报:英文版 年份:2004
Molecular H2 is extensively existing in interstellar plasma and play an important role in various charge exchange processes. Collisions between multiply cha...
[期刊论文] 作者:Xie Hongmei Wei Zengquan Liu X, 来源:近代物理研究所和兰州重离子加速器实验室年报:英文版 年份:2004
In order to improve quality of Chinese-drugs Angelica and Dangshen, it is desired to breed some new varieties with high yield, high grade, resistant disease...
[期刊论文] 作者:Xia Jingguang Li Wenjian Wei W, 来源:近代物理研究所和兰州重离子加速器实验室年报:英文版 年份:2004
We exposed human tumor cell lines SMMC-7721 and HeLa with 3 Gy of γ-rays (the dose rate is 0.3 Gy/min). After irradiation, the exponentially growing cells...
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