搜索筛选:
搜索耗时1.6058秒,为你在为你在102,285,761篇论文里面共找到 1,000 篇相符的论文内容
类      型:
[期刊论文] 作者:Yu Yin,Li-Yu Cao,Wen-Qing Wu,H, 来源:世界胃肠病学杂志(英文版) 年份:2004
AIM: To investigate the expression of vascular endothelial cell growth factor (VEGF) and its receptors Fmslike tyrosine kinase 1 (FLT-1) and fetal liver kinase...
[期刊论文] 作者:Jia Qing Cao,Yu Zhang,Jiong Mo, 来源:中国化学快报(英文版) 年份:2004
Two new cucurbitane-type triterpenoids, (23E)-5 β,19-epoxycucurbita-6,23,25-triene-3β-ol (1) and (19R, 23E)-5β,19-epoxy-19-ethoxycucurbita-6,23-diene-3 β,25...
[期刊论文] 作者:LI Guo-li,LIU Kun,BAO Yang,CAO, 来源:中华医学杂志(英文版) 年份:2004
Background Pre-operative chemotherapy has gained widespread interest while treating advanced gastric cancer in eastern countries.However,there is currently no...
[期刊论文] 作者:杨正磊,CAO Yao-qin,孙睿, 来源:微计算机信息 年份:2004
战场态势显示中,移动目标的运动轨迹及时、准确地在电子地图显示是基本要求.本文针对"北斗"卫星定位时间间隔过长导致移动目标运动轨迹有偏差的问题,提出了一种道路拟合优化...
[期刊论文] 作者:Yan LIU,Hai-Fei YAN,Tong CAO,X, 来源:植物分类学报 年份:2004
DNA barcoding is a molecular tool that uses a standardized DNA region to identify species. Our preliminary study reported here is the first attempt to specifica...
[期刊论文] 作者:Cao,A. Leonovich,G.C. Zh, 来源:空间科学学报 年份:2004
A preliminary model is proposed to describe quantitatively the position and movement of cusp equatorward boundary. This integrated model, consisting of an empir...
[期刊论文] 作者:Yan Cao,Xiao- Fei Chen,Di- Ya, 来源:药物分析学报:英文版 年份:2004
An offline two-dimensional system combining a rat cardiac mascle cell membrane chromatography time-of-flight mass spectrometry (CMC-TOF/MS) with a high performanc...
[期刊论文] 作者:Xing ZHENG,Jian Guo CAO,Duan F, 来源:中国化学快报(英文版) 年份:2004
Ten gem-difluoromethylenated chrysin derivatives were prepared and their anticancer activities in vitro were evaluated by the standard MTT method. The results o...
[期刊论文] 作者:CAO Wei,LIU Liang,LAI Luhua,TA, 来源:中国科学B辑(英文版) 年份:2004
It is widely believed that dimerization is a requirement for the yeast transcriptional activator GCN4 to recognize its specific DNA target sites. We used the ba...
[期刊论文] 作者:CAO Jian,LI Li-sen,LIU Biao,LI, 来源:高等学校化学研究(英文版) 年份:2004
The purpose of this study is to explore the expression of growth-associated protein(GAP-43) in spinal cord segments connected with injured sciatic nerve by the...
[期刊论文] 作者:Min Hui Cao,Sheng Zhen Xu,Chan, 来源:中国化学快报(英文版) 年份:2004
The carbodiimide 2, obtained from the aza-Wittig reactions of iminophosphorane 1 with alkyl isocyanates, reacted with primary amino to give 2-alkylamino benzo[b...
[期刊论文] 作者:Tong Guo,Shoujun Cao,Rui Su,Zh, 来源:环境科学学报(英文版) 年份:2004
The adsorption properties of Cu2+-loaded montmorillonite clays (MMT-Cu) for Escherichia coli K88 as a function of time,bacteria concentrations,pH,ionic strength...
[期刊论文] 作者:Jian CAO,E TANG,Xuan HUANG,Lu, 来源:中国化学快报(英文版) 年份:2004
The Lewis acid mediated polystyrene supported selenium induced intramolecular cyclization of chalcones and oxidative cleavage of selenium resins gave the corres...
[期刊论文] 作者:Yan Xiao,Wen Cao,Ke Wang,Hong, 来源:高分子科学(英文版) 年份:2004
The brittle-ductile transition is a very important phenomenon for polymer toughening. Polypropylene (PP) is often toughened by using rubbers, e.g., ethylene-pro...
[期刊论文] 作者:Ya Wen TANG,Shuang CAO,Ling Li, 来源:中国化学快报(英文版) 年份:2004
The PdCo bimetallic hollow nanospheres with 80 nm average diameter and around 9.0nm thickness of the shell were prepared with a special reduction method and cha...
[期刊论文] 作者:Yu Cao,Yu Wang,Bo-tian Li,Yan, 来源:高分子科学(英文版) 年份:2004
The title block copolymer (defined as PSUEA) containing pendant,self-complementary quadruple hydrogen bonding sites has been prepared successfully by three step...
[期刊论文] 作者:Fang Ying Wu,Sheng Gen Cao,Cai, 来源:中国化学快报(英文版) 年份:2004
Simple structural compounds 1 to 3 were synthesized.The presence of Cu2+ resulted in the fluorescence and absorption spectra change of 1 and 2,which indicated t...
[期刊论文] 作者:CAO Wancang,LIU Dan,PAN Feng,L, 来源:中国科学G辑 年份:2004
An entanglement measure for multipartite pure states is formulated using the product of the von Neumann entropy of the reduced density matrices of the constitue...
[期刊论文] 作者:Shu Xia CAO,Jian Chen ZHANG,Ju, 来源:中国化学快报 年份:2004
Hydrolysis procedure of N-phosphoryl phenylalanine (DIPP-Phe) was studied by HPLC-ESI-MS/MS. The results showed that (HO)(i-PrO)P(O)Phe was the main intermediat...
[期刊论文] 作者:HAN Li-Bo,CAO Li,WU Da-Jin,WAN, 来源:理论物理通讯 年份:2004
By using the linear approximation method, the intensity correlation function and the intensity correlation time are calculated in a gain-noise model of a single...
相关搜索: