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[期刊论文] 作者:Weiping SHEN,Wenbin CAO,Changc,
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: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...
[期刊论文] 作者:Liang Feng Wu Chengtai 等,
来源:武汉大学学报:自然科学英文版 年份:2003
The NMR methods (including 1H NMR, vari-able temperature method and the 2D COSY technique) were employed to study the conformation of 3,13-dihydroxyl-1,5,8,11,1...
[期刊论文] 作者:CAO Sheng-Li FENG Yu-Ping WAN,
来源:有机化学 年份:2003
2-( N-Alkylamino)thiophene and its derivatives are the key intermediates for the synthesis of quinazoline-basedthymidylate synthase inhibitors containing thioph...
[期刊论文] 作者:CAO Sheng-Li FENG Yu-Ping WAN,
来源:有机化学 年份:2003
Because of the essential role of thymidylate synthase (TS) in DNA biosynthesis, [1] many TS inhibitors have been designed for the treatment of cancer, [2] of wh...
[期刊论文] 作者:JIN Tong-Shou YANG Mi-Na FENG,
来源:有机化学 年份:2003
Pentaerythritol diacetals are useful in many fields. They can be applied as plasticizers and vulcanizers of various polymeric materials, as raw materials for pr...
[期刊论文] 作者:Ying Huang Danqing Feng Caihua,
来源:海洋学报:英文版 年份:2003
The larvae of Styela canopus show the highest rates of settlement and metamorphosiswhen treated with 40 mM KCl-elevated seawater at 25 ℃ in temperature and 27....
Direct Asymmetric Aldol Type Reaction with Ethyl Diazoacetate: Stereoselective Synthesis of α, β-Dih
[期刊论文] 作者:LIAO Ming-Yi YAO Wen-Gang FENG,
来源:有机化学 年份:2003
Enantioselective aldol condensation under catalytic condition remains a challenging task in modern organic synthesis, and numerous efforts have been directed to...
[期刊论文] 作者:FENG Xi-Chun LIANG Shu-Cai SU,
来源:有机化学 年份:2003
Aziridines are valuable synthetic reagents and intermediates.[1~3] The highly strained three membered ring readily opens with excellent stereo- and regio-control...
Reservoir Volcanic Rocks: Geology and Geochemistry, the Mesozoic Non-Marine Songliao Basin, NE China
[期刊论文] 作者:Pujun Wang Zhiqiang Feng Frank,
来源:世界地质:英文版 年份:2003
The reservoir volcanic rocks in Songliao Basin include the Lower Cretaceous (Klyc Form., 114~135 Ma,acidic rocks) and the Upper Jurassic (J3hs Form., 145~158 Ma,...
[期刊论文] 作者:ZHANG Shu-jun,FENG Fu-hai,HUAN,
来源:针灸推拿医学(英文版) 年份:2003
In the treatment of 30 cases of minor chorea by puncturing Baihui( GV 20), Sishencong ( ExHN 1 ) and Fengchi( GB 20), in combination of oral administration of h...
[期刊论文] 作者:FAN Quan-lin,WEI Feng-Si,FENG,
来源:黑龙江科技学院学报 年份:2003
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
Reservoir Volcanic Rocks: Geology and Geochemistry, the Mesozoic Non-Marine Songliao Basin, NE China
[期刊论文] 作者:Pujun Wang,Zhiqiang Feng,Frank,
来源:黑龙江科技学院学报 年份:2003
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
[期刊论文] 作者:FENG Xueshang,WEI Fengsi,ZHONG,
来源:空间科学学报 年份:2003
...
The susceptibility gene for familial nasopharyngeal carcinoma is mapped on chromosome 4p11-p14 by ha
[期刊论文] 作者:CHEN Hankui,FENG Bingjian,LIAN,
来源:黑龙江科技学院学报 年份:2003
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
[期刊论文] 作者:沈伟,陈霞,SHEN Jun,
来源:计算机工程 年份:2003
提出了一种改进的奇异点的提取方法:先通过改进的Poincaré指数计算,挑选出符合条件的候选点,然后在此基础上,利用径向方向会聚性,前景、背景分割和概率分布来筛选候选奇异点。用该方法对不同质量的指纹图像进行实验,并与经典方法进行比较,结果表明该方法更加有效、可......
[期刊论文] 作者:Ma Xinyu Shen Xin Lu Cunfu,
来源:中国林学:英文版 年份:2003
The recombinant expression vectorpET43. lb-AFP, which contains full encoding region of a carrot 36 kD antifreeze protein (AFP) gene was constructed. The recombi...
[期刊论文] 作者:Shang,Zhen,ZHENG,Tong,SHEN,等,
来源:中国化学快报:英文版 年份:2003
A new steroid named as Zhonghualiaoine I (1) was isolated from Polygonum nodosum Pers (Chinese name 'Zhonghualiao', Berberidaceae). Its structure was de...
Dynamic analysis of multibodies system with a floating base for rolling of ro-ro ship caused by wave
[期刊论文] 作者:Qing Shen,Yue Li and Xu-jun Ch,
来源:船舶与海洋工程学报:英文版 年份:2003
Common effect of wave and slip of internal heavy load will make rolling of the roll-on ship serious. This is one of the important reasons for overturn of ro-ro...
[期刊论文] 作者:REN Zhong-Zhou,TAI Fei,SHEN We,
来源:黑龙江科技学院学报 年份:2003
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
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