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[期刊论文] 作者:ABARCHI,ZHANG Zhan-Yu,B. VA, 来源:土壤圈(意译名) 年份:2004
An incubation experiment was carried out on plateau and slope fields to investigate the effect of plant age and rock phosphate (RP) on the organic resource (OR)...
[期刊论文] 作者:DEEPA,B., 来源:催化学报 年份:2004
A simple and versatile method for the synthesis of 1,5-benzodiazepines from o-phenylenediamine and ketones in the presence of solvents and under solvent-free co...
[期刊论文] 作者:Ka-Kheng Tan,Rex B. Thorpe,Zhi, 来源:地学前缘 年份:2004
This study investigates the mechanism of formation of convection plumes of mushroom shape in sub-solidus mantle and their prediction. The seismic-tomographic im...
[期刊论文] 作者:Popov,B., 来源:空间科学学报 年份:2004
The results of cross-correlation analysis between electrons fluxes (with energies of > 0.6 MeV,> 2.0MeV and > 4.0MeV), geomagnetic indices and solar wind parameter...
[期刊论文] 作者:Valiev,John B. Gruber, 来源:稀土学报(英文版) 年份:2004
We reported magnetooptical properties of Eu3+(4t(6)) and Tb3+(4f(8)) in single crystals of Gd3GasO12 (GGG),Y3Ga5O12 (YGG),and Eu3+(4f(6)) in Eu3Ga5O12 (EuGG) fo...
[期刊论文] 作者:LI De-Cheng,B. VELDE,LI Feng-M, 来源:土壤圈(意译名) 年份:2004
Alfalfa cropping has been considered an efficient method of increasing soil fertility.Usually nitrogen increase in root nodules is considered to be the major be...
[期刊论文] 作者:B. Kemperman,, 来源:中国颗粒学报(英文版) 年份:2004
A novel method of fabricating composite mosaic membranes was studied on the basis of interfacial polymerization (IP) by coating a thin selective layer onto the...
[期刊论文] 作者:Waghmode,Mayur B. Ku, 来源:环境科学学报(英文版) 年份:2004
The present work aims to evaluate Brown 3 REL degrading potential of developed microbial consortium GG-BL using two microbial cultures,Galactomyces geotrichum M...
[期刊论文] 作者:Ruby B. Lee,Xiao Yang,Zhi-Jie, 来源:计算机科学技术学报(英文版) 年份:2004
Secure computing paradigms impose new architectural challenges for general-purpose processors. Cryptographic processing is needed for secure communications, sto...
[期刊论文] 作者:Sasaki,B. Friman,K. Redlich, 来源:高能物理与核物理 年份:2004
We explore the NJL model with Polyakov loops for a system of three colors and two flavors within the mean-field approximation, where both chiral symmetry and co...
[期刊论文] 作者:Frankie B. Stentz,Abbas E. Kit, 来源:基因组、蛋白质组与生物信息学报(英文版) 年份:2004
We analyzed the genes expressed (transcriptomes) and the proteins translated (pro- teomes) in muscle tissues and activated CD4+ and CD8+ T-lymphocytes (T-cells)...
[期刊论文] 作者:KEIVANI,B. BAGHERI,F. SHARI, 来源:中国有色金属学报(英文版) 年份:2004
搅拌摩擦焊(FSW)被广泛应用在工业上,用来连接有色金属,尤其是铝合金。采用基于有限元分析的三维模型研究FSW过程中铜C11000的热特性。模型包含了搅拌头的机械作用和待焊接材料...
[期刊论文] 作者:B. SRINIVASAN,S. RIEKEHR,C., 来源:中国有色金属学报(英文版) 年份:2004
采用Nd-YAG激光对AZ31 HP镁合金进行激光自熔焊接.显微组织分析表明,使用或不使用填料(焊料)AZ61镁合金得到的激光焊接接头的平均晶粒尺寸大约为12 μm,显微硬度和拉伸强度与...
[期刊论文] 作者:AZZEDDINE,B. M, 来源:中国有色金属学报(英文版) 年份:2004
在室温下将Pb-0.08Ca-2Sn合金轧制到不同厚度.电阻率和显微硬度的测试结果表明,样品在80~120℃的温度区间退火时发生再结晶.XRD检测确定变形组织为Brass型,所测得的Lankford各...
[期刊论文] 作者:B. RAVINDRA,T. SENTHIL KUMAR,V, 来源:中国有色金属学报(英文版) 年份:2004
通过建立一经验公式来预测熔化极气体保护焊十字接头根部失效的疲劳寿命.采用高强可时效硬化的AA7075-T6铝合金作为基材进行焊接实验.实验设计概念被用来优化进行疲劳实验所...
[期刊论文] 作者:B. C, 来源:哈尔滨工业大学学报(英文版) 年份:2004
Recent Cryptosporidium outbreaks have highlighted concerns about filter efficiency and in particular particle breakthrough. It is essential to ascertain the cau...
[期刊论文] 作者:FOGARTY,James B. ELSN, 来源:大气科学进展(英文版) 年份:2004
The interannual variability in typhoon landfalls over China is investigated using historical and modern records. For the purpose of substantiating and elaborati...
[期刊论文] 作者:Ellis B. Cowling,Cari S. Furin, 来源:中国科学C辑(英文版) 年份:2004
Commercial forests in many parts of the world are deficient in nitrogen and phosphorus. These nutrient-deficient forests often exist in close proximity to large...
[期刊论文] 作者:B. Wilthan,R. Tanzer,W. Schiit, 来源:稀有金属(英文版) 年份:2004
Nimonic 80A is a nickel-chromium alloy which is strengthened by additions of titanium and aluminium. The alloy is used for high temperature, high strength appli...
[期刊论文] 作者:NIKAEVI,B. JORDO, 来源:中国有色金属学报 年份:2004
通过力学性能表征、光学显微镜和SEM电镜观察结合EDS分析,对AlMg6Mn合金在剪切旋压过程中的变形行为和微观结构进行研究.将样品在一工业旋压机上进行剪切旋压变形,压下量分别...
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