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Chinese Science Bulletin 1997年第7期42卷 585-588页

作者： Qi, jh Sun, F Guo, PF Physical Oceanography Laboratory Ocean University of Qingdao Qingdao 266003 China

1 Wind-stress relation THE wind-stress coefficient of sea surface, C_D, is defined

关键词： wind-stress coefficient wave height entropy Charnock coefficient.

Palladium/ceramic composite membranes prepared by novel electroless plating procedure

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Chinese Science Bulletin 1997年第11期42卷 903-907页

作者： Zhao, HB Li, AW Gu, jh Xiong, GX CHINESE ACAD SCI DALIAN INST CHEM PHYSSTATE KEY LAB CATALYSISDALIAN 116023PEOPLES R CHINA

THIN films have become more and more important in advanced technology,hence attracted theresearch interest in material science and *** chemistry,thin films are classified intoorganic and inorganic *** with organic mem... 详细信息

关键词： sol-gel self-catalysis deposition palladium composite membrane.

Synergistic mechanism of boron and arsenic in preventing dezincification of brass

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Chinese Science Bulletin 1997年第13期42卷 1135-1139页

作者： Wang, jh Jiang, XX Li, SZ State Key Tribology Laboratory Tsinghua University Beijing 100084 China Institute of Metal Research Chinese Academy of Sciences Shenyang 110015 China

IN the past, trace amount of arsenic was used to reduce the dezincification of brass, but in re-cent years, it was found that trace amount of boron also could prevent the dezincification ofbrass. By adding boron and arsenic alone or both, we found that boron or arsenic couldreduce the dezincification of brass, the synergistic effect of boron and arsenic in

关键词： boron arsenic dezincification.

Specific Mass Spectrometric Fragmentations from the Dissociation of Intermediate Ion-Neutral Complexes

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Chinese Chemical Letters 1998年第1期9卷 93-97页

作者： She, YM Wei, jh Tu, YP Liu, SY Hunan Normal Univ Anal & Testing Ctr Changsha 410006 Hunan Peoples R China Chinese Acad Sci Changchun Inst Appl Chem Changchun 1300222 Jilin Peoples R China

It is reported that two kinds of specific mass spectrometric fragmentations are generated from dissociations of the intermediates of both the ion-neutral complex and the proton-bound complex. Collision-induced dissociation, isotopic labelling, and semi-empirical AM1 calculations were used to investigate the formation mechanism of the ion of m/z 139 from ionized tetrahydroimidazole-substituted methylene beta-diketones and the unimolecular fragmentations pathway of 3-phenyl-1-butyn-3-ol upon electron impact.

关键词： mass spectrometric fragmentation ion-neutral complex proton bound complex dissociation

The　Rmodynamic　Study　on　the　Aqueous　Complexation　of　Metal　CationswithN－aceticAcidSubstitutedTetraazamacrocycle

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Chinese Chemical Letters 1996年第9期7卷 862-863页

作者： Bi, jh Xie, FX Chen, LQ Ni, SS ANHUI INST EDUC DEPT CHEMHEFEI 230061PEOPLES R CHINA ANHUI UNIV DEPT CHEMHEFEI 230039PEOPLES R CHINA

The stability constants of the 1:1 complexes of H4L (5.12-diphenyl-7.14-dimethyl-1,4,8,11-tetraazamacrocyclotetradecane-N',N',N'',N''-tetraacetic acid) with M(2-) ions (M=***,Co,Zn,Mn,***,***,Ba) were determined in 0.5 mol L KCl aqueous solution at 45℃,50℃ and 60℃ by potentiometric titration and computer fitting. The △H and △S of the coordination reaction in the solution were given.

关键词： Complexation Metal Aqueous

Effects of Electric Field on the Electronic Structures in Electroluminescent Polymers

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Journal of Materials Science & Technology 1999年第4期15卷 354-356页

作者： Fu, RL Chu, jh Fu, RT Li, L Sun, X Chinese Acad Sci Shanghai Inst Tech Phys Natl Lab Infrared Phys Shanghai 200083 Peoples R China Fudan Univ Dept Phys Shanghai 200433 Peoples R China

The effects of the electric field on the electronic structures in electroluminescent polymers were studied with the tight-binding model including electron-phonon interactions plus an applied electric field. It is found that the applied electric field changes both the energy levels and the electronic wavefunctions in electroluminescent polymers: applied field induces two localized electronic states near the midgap, and also polarizes these localized electronic states, so the polarization occurs at weak or moderate fields. In addition, the strong field will dissociate a bipolaron exciton and lead to photoluminescence quenching.

关键词： Polymers

Rapid Prototyping of Ceramic Components by Slurry Jet Printing——Ⅱ.Jet

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材料导报 2000年第Z10期14卷 364-365页

作者： Jang,jh Wang,SH

Rapid Prototyping of Ceramic Components by Slurry Jet Printing——Ⅰ.

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材料导报 2000年第Z10期14卷 361-363页

作者： Jang,jh Wang,SH

Trend and Characteristics of Variation on the Runoff of the …

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中国沙漠 2000年第3期20卷 273-277页

作者： Chao,LY jun,jh

根据唐乃亥等有关台站的水文气象观测资料，对黄河上唐乃亥以上流域的径注琢演变规律进行了分析探讨，并在此基础上用灰色拓扑、混合门限自回归及周期外延－逐步回归等数学模型对其未来的变化趋势进行了预测。结果表明，黄河上游唐乃... 详细信息

根据唐乃亥等有关台站的水文气象观测资料，对黄河上唐乃亥以上流域的径注琢演变规律进行了分析探讨，并在此基础上用灰色拓扑、混合门限自回归及周期外延－逐步回归等数学模型对其未来的变化趋势进行了预测。结果表明，黄河上游唐乃亥以上流域径流目前正处于一个枯水段的底部，并且从现在超的今后若干年里将呈现一个波动状上升的变化趋势。

关键词：径流特性演变规律变化规律趋势预测周期分析

Ab initio Studies on the Reaction of M￣++CH_4→M￣+CH_2+H_2(M=Sc,Y,La)

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Chemical Research in Chinese Universities 1996年第4期12卷 368-373页

作者： Zhu, RS Dai, SS Huang, jh Ye, S YUNNAN UNIV DEPT CHEMKUNMING 650091PEOPLES R CHINA

The present paper covers the reactions of M￣+ +CH_4→M￣+CH_2+H_2(M=Sc,Y,La)investigated theoretically using ab initio MO methods and reaction channels onthe singlet potential energy surfaces (PESs) examined and discusses the reactionmechanism. The results indicate that the formation of M￣+CH_2 is primarily via a sin-glet H M￣+ CH_3 intermediate,followed by a four-center elimination of H_2,all ofthese reactions have negative activation energies and the trend of reactivity is La￣+>Sc￣+>Y￣+.

关键词： s:Ab initio calculation Transition metalion Methane Reaction mechaNism