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[期刊论文] 作者:NIE Shan-shan,CHU Tian-shu,NIE, 来源:高等学校化学研究(英文版) 年份:2004
To figure out the influence of isotope effect on product polarizations of the N(2D)+D2 reactive system and its isotope variants,quasi-classical trajectory(QCT)...
[期刊论文] 作者:Guangjun Zhu,Zhizhong Peng, 来源:中国经济评论:英文版 年份:2004
[期刊论文] 作者:WANG Guangjun,WANG Dezhi, 来源:稀有金属(英文版) 年份:2004
Molybdenum powders with a diameter of approximately 3 μm were coated with copper using the electroless plating technique in the pH 12.5-13 and temperature rang...
[期刊论文] 作者:NIE Mengx, 来源:清华大学学报(英文版) 年份:2004
This paper experimentally analyzes the causes of cavitation damage in the in vert of an open channel. Results show that cavitation in the invert is mainly du e...
[期刊论文] 作者:NIE Li-luo, 来源:中华神经科杂志 年份:2004
目的 建立应用SYBR GreenⅠ实时荧光定量聚合酶链反应(Real-time PCR,RT-PCR)检测parkin基因外显子重排突变的技术平台,应用该技术对常染色体隐性遗传早发型帕金森综合征(aut...
[期刊论文] 作者:NIE Jian-feng, 来源:海外英语(上) 年份:2004
With the popularity of Computer Assisted Language Learning (CALL), autonomous language learning centers have been established in the universities throughout the...
[期刊论文] 作者:Nie Xiangyang, 来源:中国现代医学杂志 年份:2004
目的:婴幼儿PDA术后不置胸腔引流的治疗体会。方法:经左腋下第四肋小切口,4~6cm,常规结扎动脉导管,关胸时排尽余气,不置闭式引流。结果:无病例死亡,术后杂音消失,仅1例少量积血,其余病例......
[期刊论文] 作者:Li Yongzhe,Zhang Guangjun,Xion, 来源:中国焊接 年份:2004
[期刊论文] 作者:Yan GU,Guangjun ZHU,Zhongming, 来源:数学年刊B辑(英文版) 年份:2004
Let F be a Hilbert filtration with respect to a Cohen-Macaulay module M.When G(F,M) and FK(F,M) have almost maximal depths, the Hilbert coefficients g2(F, M) is...
[期刊论文] 作者:Yin Ziqiang,Zhang Guangjun,Gao, 来源:中国焊接 年份:2004
3D reconstruction of worn parts is the foundation for remanufacturing system based on robotic arc welding,because it can provide 3D geometric information for ro...
[期刊论文] 作者:Yan Zhihong,Zhang Guangjun,Gao, 来源:中国焊接 年份:2004
A passive visual sensing system is established in this research, and clear weld pool images in pulsed gas metal arc welding ( P-GMA W) can be captured with this...
[期刊论文] 作者:Leng Xuesong,Zhang Guangjun,Ga, 来源:中国焊接 年份:2004
A new twin-tungsten TIG (T-TIG) welding method was studied. This method differs from the conventional TIG method, it places two electrodes insulated from each o...
[期刊论文] 作者:Zhang Guangjun,Chen Shanben,Wu, 来源:中国焊接 年份:2004
This paper analyses the performance request of arc welding power source used in intelligent control of weld pool shape in pulsed GTAW, and develops a sample pow...
[期刊论文] 作者:ZHANG Guangjun,ZHANG Huajun,GA, 来源:中国焊接 年份:2004
A new high efficiency welding method, double-sided double arc welding with double powers (DSAW-D), is developed for thick plate of low alloy high strength steel...
[期刊论文] 作者:Wang Guangjun,Tian Jinwen,Chen, 来源:中国地质大学学报 年份:2004
Because of wide variation in gray levels and particle dimensions and the presence of many small gravel objects in the background, as well as corrupting the imag...
[期刊论文] 作者:Zhang Huajun,Zhang Guangjun,Zh, 来源:中国焊接 年份:2004
It has been widely studied about the final residual stress and deformation in multipass welding of thick weldments. But there is a lack of a clear understanding...
[期刊论文] 作者:Teng NIE,Lei NIE,Zhen ZHOU,Zha, 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:XIONG Jun,ZHANG Guangjun,HU Yu, 来源:中国机械工程学报 年份:2004
The reconstruction of emission coefficient is a key factor for the calculation of temperature field.However,most of the researches for determining are plasmas a...
[期刊论文] 作者:Liu Lijun,Zhang Guangjun,Wu Li, 来源:中国焊接 年份:2004
According to the characteristics of remote welding, including multiple parameters, real-time, and communication reliability of long wire transmitting, a distrib...
[期刊论文] 作者:GUO Jing,LIU Guangjun,DONG Xur, 来源:地球空间信息科学学报(英文版) 年份:2004
Multi-level spatial index techniques are always used in large spatial databases. After a general survey of R-tree relevant techniques, this paper presents a nov...
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