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[期刊论文] 作者:MA DaWei,ZHU RenBin,DING Wei,S, 来源:极地科学进展 年份:2004
Phosphatase plays an important role in the microbial liberation of phosphorus in soil systems.In this study,alkaline phosphatase activity (APA) was investigated...
[期刊论文] 作者:Fei Wu,Yinghua Huang,Ying Ma,S, 来源:自然科学进展(英文版) 年份:2004
The genetic diversity of two natural populations (M, N-) of Beijing duck (Anas platyrhynchos) and 11 artificially selected lines of Bei-jing duck (A, B, E-L, O)...
[期刊论文] 作者:Chen MA,Yun Hong ZHANG,Chang S, 来源:中国化学快报(英文版) 年份:2004
The UV-Vis spectra of THPPH2 in CTAB micelles at pH7.2 and pH11.0 were analyzed to study the effect of micellar environments on the aggregation behaviors of thi...
[期刊论文] 作者:MA Xiqun,YU Zhentao,HAN Yong,S, 来源:稀有金属(英文版) 年份:2004
The plastic deformation and fracture processes of Ti-3Zr-2Sn-3Mo-25Nb alloy for surgical implants were directly observed by in situ scanning electron microscopy...
[期刊论文] 作者:Zhan-lei wu,Ru Zhang,Ma Zhao,S, 来源:矿物冶金与材料学报 年份:2004
The acetone-sensing properties of the undoped and Pd doped perovskite-type oxides NdFeO3 were investigated from room temperature to 400℃.The perovskite-type Nd...
[期刊论文] 作者:Yang Wei Ma Qiufeng Li Wenjian, 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
Water occupies over 70% in a cell and clouds cover approximately 60% of the earth's surface. The radiation of high-energy particles (γray, heavy ions,...
[期刊论文] 作者:Yongfu Ma,Yang Liu,Xueliang Ya, 来源:中国神经再生研究(英文版) 年份:2004
BACKGROUND: Residual postoperative pleural spaces (RPPS) are often encountered during pulmonary resection; this could adversely affect the outcome and prolong r...
[期刊论文] 作者:Wenjuan Shan,Na Ma,Jiali Yang,, 来源:天然气化学(英文版) 年份:2004
MnO_x-CeO_2 oxides prepared by complexation-combustion method were used for soot oxidation.The highest conversion rate of soot was obtained on a MnO_x-CeO_2 oxi...
[期刊论文] 作者:GUO Chun-yu,MA Ning,YANG Chen-, 来源:水动力学研究与进展B辑 年份:2004
A podded propulsor in viscous flow is numerically simulated in this article.The region of fluid is divided into efficient calculation grids.The pressure and vis...
[期刊论文] 作者:Guan Haiqing,MA Yitai,YANG Jun, 来源:天津大学学报(英文版) 年份:2004
To improve the coefficient of performance (COP) of CO 2 transcritical reverse cycle and determine the most efficient cycle, comparison analysis on single- and t...
[期刊论文] 作者:Wang Shuo,Yang Shanlin,Ma Xiju, 来源:中国工程科学(英文版) 年份:2004
Multidimensional grey relation projection value can be synthesized as one-dimensional projection value by u-sing projection pursuit model.The larger the project...
[期刊论文] 作者:MA Fang,YANG Hai-yan,WANG Hong, 来源:哈尔滨工业大学学报(英文版) 年份:2004
Bacteria separated from a mature filter bed of groundwater treatment plants were incubated in a culture media containing iron and manganese. A consortium of 5 s...
[期刊论文] 作者:Sun Hongwei,Ma Yulin,Yang Xu, 来源:高技术通讯(英文版) 年份:2004
The importance of the numerical model for sculptured part machining based on virtual environment is introduced. Meanwhile, the general frame of the numerical mo...
[期刊论文] 作者:YANG Chen,MA Wen-ping,WANG Xin, 来源:中国邮电高校学报(英文版) 年份:2004
Ju et al proposed a certificateless signature scheme with instantaneous revocation by introducing security mediator (SEM) mechanism. This article presents a det...
[期刊论文] 作者:YANG ZhiJian,WANG Wei,MA DongC, 来源:中国科学C辑(英文版) 年份:2004
We aim to study the amelioration effect of adenovirus5-mediated human hepatocyte growth factor gene transfer on postinfarction heart failure in swine model. Twe...
[期刊论文] 作者:ZHU Li-nan,MA Jun,YANG Shi-don, 来源:环境科学学报(英文版) 年份:2004
A new process for removing the pollutants in aqueous solution-activated alumina bed in pulsed high-voltage electric field was investigated for the removal of ph...
[期刊论文] 作者:MA Hao,YANG Hong-yu,ZOU Jun-ji, 来源:中华医学杂志(英文版) 年份:2004
Background Sufficient length of the proximal landing zone (PLZ) is the key for a successful thoracic endovascular aortic repair (TEVAR) of an aortic lesion. The...
[期刊论文] 作者:MA Rui-qiong,SUN Min-na,YANG Z, 来源:中华医学杂志(英文版) 年份:2004
Background Preeclampsia is one of hypertensive disorders in pregnancy. It is associated with abnormal lipid metabolism, including fatty acid oxidation metaboli...
[期刊论文] 作者:HOU Ning,YANG Ji-xian,MA Fang,, 来源:哈尔滨工业大学学报(英文版) 年份:2004
For further practical application,the phylogenetic analysis and de-emulsification properties study of strain XHl with high de-emulsification efficiency isolated...
[期刊论文] 作者:LI Yang,HUA Shu-cheng,MA Cheng, 来源:高等学校化学研究(英文版) 年份:2004
The carcinoembryonic antigen(CEA) is an oncofetal glycoprotein known as an important clinical tumor marker and is overexpressed in several types of tumors, incl...
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