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[期刊论文] 作者：PEI Ji,YUAN Shouqi,YUAN Jianpi,
来源：中国机械工程学报 年份：2004
...
[期刊论文] 作者：Yuan Yuan Wang,Rong Wang,Liang,
来源：中国化学快报（英文版） 年份：2004
Fructone (2-methyl-2-ethylacetoacetate-1,3-dioxolane), a flavouring material, has been synthesized from ethyl acetoacetate and glycol using five water-soluble B...
[期刊论文] 作者：WANG Heng,HU Lian-xi,YUAN Yuan,
来源：中国有色金属学报（英文版） 年份：2004
In order to optimize the dehydriding process for producing nanocrystalline Mg alloy powders by hydriding-dehydriding treatment, nano-structured as-hydrided Mg-3...
[期刊论文] 作者：CHEN Yuan,WEN Yu-jin,CHEN Yuan,
来源：农业科学学报（英文版） 年份：2004
The higher survival rates of Helicoverpa amigera larvae were usually observed after adverse climate which was related to extreme temperature (T) and relative hu...
[期刊论文] 作者：YUAN Xin,YUAN Chuxiong,GONG We,
来源：武汉理工大学学报英 年份：2004
The experimental studies on the microbial flotation of a pure pyrite sample using Thiobacillus ferrooxidans was conducted in the laboratory. The results indicat...
[期刊论文] 作者：Dong Jiang,Yuan Yuan Wang,Ming,
来源：中国化学快报 年份：2004
Br(o)nsted acidic ionic liquids based on imidazolium cation were employed as a series of environmentally benign catalysts and mediums in the alcoholysis of acet...
[期刊论文] 作者：Li Li,Yuan Yuan,Yin Pumin,
来源：北京周报（英文版） 年份：2004
...
Particle-in-cell mode beam dynamics simulation of the low energy beam transport for the SSC-linac in
[期刊论文] 作者：XIAO Chen,HE Yuan,YUAN You-Jin,
来源：中国物理C 年份：2004
A new SSC-linac system (injector into separated sector cyclotron) is being designed in the HIRFL (heavy ion research facility of Lanzhou). As part of SSC-Linac,...
[期刊论文] 作者：Wen-yu Sun,Jin-yun Yuan,Ya-xiang Yuan,
来源：计算数学（英文版） 年份：2004
In this paper we present a trust region method of conic model for linearly constrainedoptimization problems. We discuss trust region approaches with conic model...
[期刊论文] 作者：Yuan Yuan NIE,Chun Peng WANG,
来源：黑龙江科技学院学报 年份：2004
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：Yuan Yuan,Wei Gong,Rong Tian X,
来源：世界胃肠病学杂志 年份：2004
AIM To study the comprehensive prevention and treatment of gastric cancer among high-risk population inthe high risk areas.METHODS A gastrocarcinoma mass screen...
[期刊论文] 作者：Yuan Yuan Zhang,Ke Ping Xu,Dan,
来源：中国化学快报（英文版） 年份：2004
Six new pleuromutilin derivatives were designed and synthesized, confirmed by MS, IR and 1H NMR techniques. And the antibacterial activities were primarily eval...
[期刊论文] 作者：Sun Yan,Yuan Yuan,Zhang Lili,Z,
来源：国际转化医学杂志（英文版） 年份：2004
Objective:To explore the expression of uncoupling protein-2 (UCP2) in clinical breast cancer tissue and drug-resistant cells. Methods:The expression of UCP2 in...
[期刊论文] 作者：Xin Qiao Liu,Wen Yuan Gao,Yuan,
来源：中国化学快报（英文版） 年份：2004
Two new α,β-unsaturated butyrolactone derivatives, 4-(4″-hydroxybenzyl)-3-(3′-hydroxy-phenethyl)furan-2(5H)-one (1) and 3-(3′-hydroxyphenethyl)furan-2(5H)-...
[期刊论文] 作者：ZHANG Yuan Yuan,LI Yan Bing,HU,
来源：生物医学与环境科学（英文版） 年份：2004
Objective To identify the novel species ‘Mycobacterium fukienense’ sp. nov of Mycobacterium chelonae/abscessus complex from tuberculosis patients in Fujian Pr...
Application of Et3NHCl-AlCl3 Ionic Liquid as an Initiator in Cationic Copolymerization of 1, 3-Penta
[期刊论文] 作者：Yuan Yuan WANG,Hui SUN,Juan LI,
来源：中国化学快报（英文版） 年份：2004
The random copolymer poly (1, 3-pentadiene-co-styrene) formed through cationic copolymerization using the triethylamine hydrochloride and hydrous aluminium chlo...
[期刊论文] 作者：Tao Lu,Yuan Yuan Qiao,Pan Wen,
来源：中国化学快报（英文版） 年份：2004
A ligand is a small molecule bind to several residues of a receptor. We adapt the concept of molecular path for effective ligand search with its contacting resi...
[期刊论文] 作者：GUO Li,YUAN Lin,PENG Wen,YUAN,
来源：高等学校化学研究（英文版） 年份：2004
Rare earth iron garnets R3Fe5-xMnxO12(R=Pr,Nd,Sm,Eu) were prepared through mild hydrothermal method.The initial alkalinity of solutions was thought to play an i...
Synthesis of 2-methylpyrazine from cyclocondensation of ethylene diamine and propylene glycol over p
[期刊论文] 作者：Fang Li Jing,Wei Chu,Yuan Yuan,
来源：中国化学快报（英文版） 年份：2004
The 2-methylpyrazine was synthesized by catalytic reaction of ethylene diamine and propylene glycol at 380℃. The alumina supported copper catalysts with promot...
[期刊论文] 作者：Xin Qiao Liu,Wen Yuan Gao,Yuan,
来源：中国化学快报（英文版） 年份：2004
A novel phenanthro [2,3-b] furan 1, named (3-hydroxy-9-(4′-hydroxy-3′-methoxyphenyl)-11-methoxy-5,6,9,10-tetrahydrophenanthro [2,3-b] furan-10-yl) methyl acet...
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