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[期刊论文] 作者:Li Li,,
来源:Beijing Review 年份:2004
HPV vaccines are still not available on the Chinese mainland despite theirproven efficacyCancer kills,but some cancers have become avoidable due to the latest d...
[期刊论文] 作者:Li Li,,
来源:Beijing Review 年份:2004
Salary increases continue to benefit Chinese workers As of April 25,nine local governments in China had raised their minimum monthly wage standards by an averag...
[期刊论文] 作者:LI Dong-fang,LI Li,LI Jian-zha,
来源:中国林学(英文版) 年份:2004
As a hot-melt adhesive,ethylene-vinyl-acetate(EVA)has been used in many industrial applications.But studies of the application of EVA in wood-plastic composites...
[会议论文] 作者:Qi Li li,
来源:中国科学技术协会学会学术部,福建省科协 年份:2004
In the environment of network,many aspects of market marketing have changed much-such as the concept,thestrategy,the activity of the consumers etc.In this situation,cybermarketing has been formed.How...
[期刊论文] 作者:LI Jun-Qing,LI Li,ZHAO Jia-Qun,LI Chun-Fei,
来源:中国物理快报(英文版) 年份:2004
We propose a novel configuration of all-optical switch based on a double-loop Sagnac ring coupled with a nonlinear ring resonator. In the case of self-phase mod...
An Efficient Procedure for Esterification of Aryloxyacetic Acid and Arylthioacetic Acid Catalyzed by
[期刊论文] 作者:LI,Hong-Ya LI,Ji-Tai LI,Hui-Zh,
来源:有机化学 年份:2004
Aryloxyacetate and arylthioacetate are wildly used in herbicides, plant regulator and insecticides. Recently, Wille et al. have reported that methyl aryloxyacet...
[期刊论文] 作者:Li Wenling,Li Yawen,Li Shangzh,
来源:Empirical Study 年份:2004
Temporal map is an isoehronal map taking time as a measuring unit. It traces out the isochrones according to the discrepancy of the time distance between the di...
[期刊论文] 作者:LI Li,SUN Ying-ping,LI Si-dong,
来源:安徽医药 年份:2004
目的 测定黑果小檗各部位中总黄酮含量并评价其体外抗氧化活性,为有效利用黑果小檗资源提供参考.方法 采用紫外分光光度法测定黑果小檗中总黄酮的含量,并通过DPPH、羟自由基...
Microstructure characteristics and solidification behavior of wrought aluminum alloy 2024 rheo-dieca
[期刊论文] 作者:Li Yanlei,Li Yuandong,Li Chun,,
来源:中国铸造 年份:2004
...
Observation on Therapeutic Effect of Magnetic Acupuncture Treatment of Simple Obesity Complicated wi
[期刊论文] 作者:ZHANG Li,LI Dong-shu,SHENG Li,
来源:针灸推拿医学(英文版) 年份:2004
将60例单纯性肥胖症并发高脂血症的患者,随机分为磁针组和对照组.观察肥胖指标及血脂指标的改善情况.磁针组具有减肥效应的同时,在改善患者的血脂指标胆固醇(TC)方面明显优于...
[期刊论文] 作者:Xintao LI,Tingju LI,Qiulin LI,,
来源:中国铸造 年份:2004
The effect of commercial frequency electromagnetic field on the solidification structure and mechanical properties of copper hollow blanks prepared by horizonta...
[期刊论文] 作者:LI Xiao,LI Qing-kai,LI Xiao-fa,
来源:哈尔滨工业大学学报(英文版) 年份:2004
The new mechanism of drum-shaped gear with ring-involute teeth is presented to implement dimensional transmission for the stairlift. The structure of the gear a...
Synthesis of L-cystine bridged bis(β-cyclodextrin) and its cooperative binding toward guest molecule
[期刊论文] 作者:LI Li,LI Xiaoyun,LIU Yu,
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:LI Yanchu,LI Li,JING Chunshen,,
来源:科学通报 年份:2004
Analyses of sea surface height anomalies (SSHA) from Jan. 1993 to Dec. 2001 measured by TOPEX/Poseidon (T/P) satellite altimetry indicate that there are two ene...
[期刊论文] 作者:Mei-Ru Li,Yan Li,Hong-Qing Li,,
来源:植物学报(英文版) 年份:2004
Dehydration-responsive element binding (DREB) proteins are a subfamily of AP2/ERF transcription factors that have been shown to improve tolerance to osmotic str...
Synthesis, crystal structure, and fluorescence of two dimeric europium(Ⅲ) complexes with 2-(trifluor
[期刊论文] 作者:LI Yanqiu,LI Peizhou,LI Xia,
来源:稀土学报(英文版) 年份:2004
Two complexes [Eu2(2-TFMBA)6(2,2'-bipy)2].2H2O (1) and Eu2(2-TFMBA)6(1,10-phen)2 (2) (2-TFMBA=2-(Trifluoromethyl) benzoate; 2,2'-bipy=2,2'-bipyridine; 1,10-phen...
[期刊论文] 作者:LI Yan,LIU Shao-jun,LI Li,
来源:中国海洋工程(英文版) 年份:2004
The dynamic analysis of a pipe system is one of the most crucial problems for the entire mining system.A discrete element method (DEM) is proposed for the analy...
THE SIMILAR STRUCTURE OF SOLUTIONS IN FRACTAL MUITILAYER RESERVOIR INCLUDING A QUADRATIC GRADIENT TE
[期刊论文] 作者:LI Wei,LI Xiao-ping,LI Shun-ch,
来源:水动力学研究与进展B辑 年份:2004
When the classical nonlinear partial differential equations are used to model the fractal reservoir,based on the assumption of low compressibility fluids,the ef...
Synthesis of L-cystine bridged bis(β-cyclodextrin) and its cooperative binding toward guest molecule
[期刊论文] 作者:LI Li,LI Xiaoyun,LIU Yu,
来源:科学通报 年份:2004
A novel β-cyclodextrin derivative, L-cystine bridged bis(β-cyclodextrin) 1 has been synthesized and characterized by 1H NMR, 13C NMR, IR, Raman and combustion...
Hydrogen Bonds in Coal——The Influence of Coal Rank and the Recognition of a New Hydrogen Bond in Coa
[期刊论文] 作者:LI Dong-Tao,LI Wen,LI Bao-qing,
来源:高等学校化学研究 年份:2004
By means of in-situ diffuse reflectance FTIR, the IR spectra of 6 coals with different ranks were obtained from room temperature to 230 ℃. A new curve fitting...
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