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[期刊论文] 作者:WANG Shi-Yan,YANG Yong-Xing, 来源:中国地理科学 年份:2004
During the period of May to October in 1999, systematical studies were given to the rate of decomposition of Calamagrostis angustifolia litter, the phosphorus c...
[期刊论文] 作者:YANG Ming-hong,TANG Yuan-yan, 来源:生态经济(英文版) 年份:2004
The influence of the transfer payments from the central government to the local governments on the local governments efforts on taxation must be taken into cons...
[期刊论文] 作者:WANG Ge-Li,YANG Pei-Cai, 来源:大气和海洋科学快报 年份:2004
Most real-world time series have some degree of nonstationarity due to external perturbations of the observed system; external driving forces are the essential...
[期刊论文] 作者:YANG Xiao-sheng,ALDRICH Chris, 来源:中国有色金属学会会刊(英文版) 年份:2004
The effects of aeration rate and impeller speed on the concentrate sulfur grade and recovery for batch flotation of a complex sulphide ore were investigated. Th...
[期刊论文] 作者:JU Bing-feng,JU Yang, 来源:中国有色金属学会会刊(英文版) 年份:2004
Electrical conductivities of micron-scale aluminum wires were quantitatively measured by a four-point atomic force microscope (AFM) probe. This technique is a c...
[期刊论文] 作者:Yang Guangliang,Shen Chongyang, 来源:大地测量与地球动力学(英文版) 年份:2004
A gravity survey was conducted one month after the 2010 Yushu earthquake in the epicenter area.The cross-fault survey line was 500 km long,from Langqian county...
[期刊论文] 作者:Yang Weifang,Jonathon Li, 来源:大地测量与地球动力学(英文版) 年份:2004
Due to the conflict between huge amount of map data and limited network bandwidth,rapid transmission of vector map data over the Internet has become a bottlenec...
[期刊论文] 作者:YANG Liqing,LI Xunbo, 来源:武汉理工大学学报 年份:2004
Aiming at managing enterprise information, we have done research and development on enterprise information visual management system based on geographic informat...
[期刊论文] 作者:WU Liang,YANG Jinming, 来源:中国电机工程学报 年份:2004
[期刊论文] 作者:CUI Baoshan,YANG Zhifeng, 来源:自然科学进展 年份:2004
Based on the related literature and the analysis of the relationship between wetland ecosystem and hydroperiod, the estimating and classifying methods of eco-en...
[期刊论文] 作者:吕杨,Lü Yang, 来源:港口科技 年份:2004
为了总结国内外对港口群的研究情况,通过研究这一领域积累的大量国内外文献,分析总结了港口群演化与整合的研究内容和研究方法.并在此基础上,提出对我国港口群发展与整合的建...
[期刊论文] 作者:Yinke YANG,Zhenglong YAN, 来源:农业科学与技术:英文版 年份:2004
[Objective] This research was to study the correlation regional climatic characteristics and changing geographic distribution of Populus euphratica Oily. (Sali-...
[期刊论文] 作者:YANG Jiaxi,LIU Liang, 来源:科学通报 年份:2004
Dissolution of pyroxene in garnet at ultrahigh pressures produces supersilicic garnet with the coupled substitutions of SiⅥ + MⅥ= AlⅥ + AlⅥ and SiⅥ + NaⅧ=...
[期刊论文] 作者:YANG Zisheng,LIANG Luohui, 来源:山地科学学报 年份:2004
Severe soil erosion in the middle and upper reaches of Yangtze River has been regarded as a major environmental problem. The on-site impact of soil erosion on a...
[期刊论文] 作者:Xiao-chen YANG,Qing-he ZHANG, 来源:水科学与水工程 年份:2004
[期刊论文] 作者:Wang Zhiping,Yang Yuanyuan, 来源:中国焊接 年份:2004
With the modified Almen method, the forming and development process of residual stress in a thermal sprayed coating has been obtained. The test results identify...
[期刊论文] 作者:Wang Yongbiao,YANG Hao, 来源:中国科学D辑(英文版) 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:YANG Qunhui,Zhou Huaiyang, 来源:科学通报(英文版) 年份:2004
In order to evaluate bioturbation in sediments from the COMRA Polymetallic Nodule Area in the northeast tropical Pacific, excess 210Pb profiles in sediments cor...
[期刊论文] 作者:Yang Hongwei,XIE Zhenghui, 来源:自然科学进展 年份:2004
Soil moisture plays an important role in water and energy balance in land-atmospheric interaction, but is impacted directly by the groundwater table. Dynamic va...
[期刊论文] 作者:LI Shuguang,YANG Wei, 来源:科学通报 年份:2004
There are significant differences of Nd and Pb isotopic compositions between Mesozoic mafic igneous rocks from the North China Block (NCB) and the South China B...
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