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[期刊论文] 作者:CHENG Haobo,Feng Zhijing,WANG,
来源:科学通报 年份:2004
The characteristics of magnetorheological finishing (MRF) technique such as the behavior of magnetic particles and the magnetic field distribution have been inv...
Surface roughness and removal rate in magnetorheological finishing of a subsurface damage free surfa
[期刊论文] 作者:CHENG Haobo,WANG Yingwei,Feng,
来源:自然科学进展(英文版) 年份:2004
Based on computer-controlled optical surfacing, a new technique called magnetorheological finishing (MRF), is presented. The new technique combines the features...
[期刊论文] 作者:Xin Zhang,Xin Zhang,
来源:卷宗 年份:2004
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A new chain-like heteropolytungstate formed by Keggin cluster units: Synthesis and structure of [H2b
[期刊论文] 作者:Jing Xin Meng,Ying Ma,Xin Xin,
来源:中国化学快报(英文版) 年份:2004
A new heteropolytungstate, [H2bpy]3[SiMnW11O39]· 1.25H2O(1), has been prepared under mild hydrothermal conditions and structurally characterized by single crys...
[期刊论文] 作者:Wen Xin GU,An Xin WU,Xin Fu PA,
来源:中国化学快报(英文版) 年份:2004
A novel reduction system is reported here in which the compounds with terminal C-C triple bond and disubstituted C-C triple bond react with NaBH4/Pd(PPh3)4 in a...
[期刊论文] 作者:Xin Qu,,
来源:China Detergent & Cosmetics 年份:2004
Formaldehyde donor preservatives are under debate because formaldehyde at high concentration is known to the public as a toxic substance to humans and the envir...
[期刊论文] 作者:Xin Su,
来源:美中外语 年份:2004
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[学位论文] 作者:ZHANG Xin,,
来源:天津大学 年份:2004
纳米技术已被广泛应用于光动力学疗法治疗各种疾病。光照、分子氧和光敏剂组成了光动力学疗法的三要素。激光照射时,光敏剂消耗氧气产生单线态氧。单线态氧是一种高活性自由...
The Application of Orbal Oxidation Ditch Process Analysis and Discussion in Laixi Sewage Treatment P
[会议论文] 作者:Wang Xin,,
来源: 年份:2004
The study take a brief introduction of the basic situation and design features of the sewage plant. And it analyzes the actual operation inlet, outlet index, pr...
[期刊论文] 作者:SHUAI Xin,
来源:重庆邮电大学学报(自然科学版) 年份:2004
基于2 μm CMOS工艺,设计实现了一种2.4 V低功耗带有恒跨导输入级的Rail-to-Rail CMOS运算放大器.采用尾电流溢出控制的互补差分输入级和对称AB类推挽结构的输出级,实现了满...
[期刊论文] 作者:XIN Chun-lei,
来源:山西建筑 年份:2004
针对安全控制在监理工作中的重要性,从建设方、监理方、施工方三方面对施工中的不安全因素进行了分析,介绍了施工阶段安全监理的程序,探讨了工程建设监理安全控制的合理对策,...
[期刊论文] 作者:ZHENG Xin,
来源:现代雷达 年份:2004
以Si双极型功率晶体管为代表的第一代半导体功率器件和以GaAs场效应晶体管为代表的第二代半导体功率器件为雷达发射机的大规模固态化和可靠性提高做出了贡献.近年来以SiC场效...
[期刊论文] 作者:Xin Gao,
来源:基因组蛋白质组与生物信息学报(英文版) 年份:2004
...
[期刊论文] 作者:JIN Xin,
来源:热力发电 年份:2004
通过对某电厂FW型W火焰锅炉近壁面区域烟气温度场和流场测试,认为侧墙和翼墙卫燃带严重结渣为烟气流的冲刷所致.据此,提出了适当关小最靠侧边下挡板的开度,减弱二次风的引射...
[期刊论文] 作者:LU Xin,
来源:中国医学科学院学报 年份:2004
目的 研究黑色素瘤抗原(MAGE)-1和MAGE-3基因在肝内胆管细胞IHCC)组织中的表达,探讨MAGE-1、MAGE-3基因与IHCC患者临床指标的关系.方法 RT-PCR方法检测20例IHCC患者癌组织及...
[期刊论文] 作者:Wang Xin,
来源:中国医药导刊 年份:2004
目的:对非体外循环下冠状动脉搭桥手术麻醉进行回顾总结.方法:60例非体外循环下冠脉搭桥术的病人,以芬太尼复合异氟醚和异丙酚维持麻醉.术中维持收缩压在90~120mmHg之间.心率...
ALGEBRAIC TURBULENCE MODEL WITH MEMORY FOR COMPUTATION OF 3-D TURBULENT BOUNDARY LAYERS WITH VALIDAT
[期刊论文] 作者:XIN Ding-ding,
来源:航空学报 年份:2004
Additional equations were found based on experiments for an algebraic turbulence model to improve the prediction of the behavior of three dimensional turbulent...
[期刊论文] 作者:ZHAO Xin,
来源:航天器工程 年份:2004
多层隔热组件在卫星热设计中应用最为广泛,主要用于减小漏热以及整星与外环境之间的热耦合.文章采用等效处理的方式,将多层隔热组件等效成为一种低太阳吸收比、低红外发射率...
[期刊论文] 作者:Xin WANG,
来源:植物分类学报 年份:2004
The origin of angiosperms has been a focus of intensive research for a long time. The so-called preCretaceous angiosperms, including Schmeissneria, are usually...
[期刊论文] 作者:XIAO Xin,
来源:海外英语(上) 年份:2004
In this article an attempt to enhance the awareness of hedging use in discourse analysis and academic writing is made by analyzing hedges employed in two compar...
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