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PROPERTIES　OF　ULTRAFINE　SnOx　THIN　FILM　MADE　BY　PLASMA　POLYMERIZATION

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Chinese Chemical Letters 1996年第5期7卷 493-494页

作者： Zhang, Y Zhou, KL Cao, wm Liu, wm ACAD SINICA CHENGDU INST ORGAN CHEMCHENGDU 610011PEOPLES R CHINA ACAD SINICA LANZHOU INST CHEM PHYSLAB SOLID LUBRICATLANZHOU 730000PEOPLES R CHINA

Abstract: Ultrafine SnOx thin films were prepared from tetrabtltyltin by RF glow dis charge polymerization. Annealing behaviour of films under air and gas-sensitive probesty were investigated. The ultrafine SnOx thin film with average part ide size of 6nm exhibited a high sensitivity of 30 to 500ppm EtOH at 200℃.

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SEPARATION　CHARACTERISTICS　OF　THE　HYDROCYCLONE　WITH　A　CENTRAL　CONE　AND　ANNULAR　TEETH

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中国有色金属学会会刊：英文版 1996年第4期6卷 11-15页

作者： Chu, LY Chen, wm Luo, Q NORTHEASTERN UNIV DEPT MINERAL ENGN SHENYANG 110006 PEOPLES R CHINA SICHUAN UNION UNIV DEPT CHEM PROC MACHINERY CHENGDU 610065 PEOPLES R CHINA

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ＳＥＰＡＲＡＴＩＯＮＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＴＨＥＨＹＤＲＯＣＹＣＬＯＮＥＷＩＴＨＡＣＥＮＴＲＡＬＣＯＮＥＡＮＤＡＮＮＵＬＡＲＴＥＥＴＨ￥ＣｈｕＬｉａｎｇｙｉｎ；ＣｈｅｎＷｅｎｍｅｉ（ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｍｉｃａｌＰｒｏｃｅｓｓｉ...

关键词： ydrocyclone central cone annular teeth separation sharpness classification efficiency separation characteristics

THERMODYNAMICS OF THERMAL DECOMPOSITION OF ALUMINUM HYDROXIDE

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中国有色金属学会会刊：英文版 1997年第3期7卷 133-135页

作者： Zeng, wm Chen, NY Chen, QY CHINESE ACAD SCI SHANGHAI INST METSHANGHAI 200050PEOPLES R CHINA CENT S UNIV TECHNOL DEPT CHEMCHANGSHA 410083PEOPLES R CHINA

ＴＨＥＲＭＯＤＹＮＡＭＩＣＳＯＦＴＨＥＲＭＡＬＤＥＣＯＭＰＯＳＩＴＩＯＮＯＦＡＬＵＭＩＮＵＭＨＹＤＲＯＸＩＤＥ①ＺｅｎｇＷｅｎｍｉｎｇ，ＣｈｅｎＮｉａｎｙｉＳｈａｎｇｈａｉＩｎｓｔｉｔｕｔｅｏｆＭｅｔａｌｕｒｇｙ，Ｃ... 详细信息

ＴＨＥＲＭＯＤＹＮＡＭＩＣＳＯＦＴＨＥＲＭＡＬＤＥＣＯＭＰＯＳＩＴＩＯＮＯＦＡＬＵＭＩＮＵＭＨＹＤＲＯＸＩＤＥ①ＺｅｎｇＷｅｎｍｉｎｇ，ＣｈｅｎＮｉａｎｙｉＳｈａｎｇｈａｉＩｎｓｔｉｔｕｔｅｏｆＭｅｔａｌｕｒｇｙ，ＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＳｃ...

关键词： Al(OH) 3 thermal decomposition thermodynamics

A Continuum Model for Heavy-electron Metal

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Journal of Materials Science & Technology 1997年第2期13卷 133-136页

作者： Liu, wm Yu, Z Pu, FC YUNNAN NORMAL UNIV DEPT PHYSKUNMING 650092PEOPLES R CHINA CHINESE ACAD SCI INST PHYSBEIJING 100080PEOPLES R CHINA

The exact eigenstates of the Hamiltonian of a continuum model for heavy-electron metal are constructed by using the Bethe ansatz. The Bethe ansatz equations are obtained from the periodic boundary conditions. The resu... 详细信息

关键词： Metals

Calculation of Thermodynamic Properties from Phase Diagram of the Pb-Zn System

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Journal of Materials Science & Technology 1997年第3期13卷 233-234页

作者： Zeng, wm Chen, NY Qiu, GF Shanghai Institute of Metallurgy Chinese Academy of Sciences Shanghai 200050 China

The formulas for obtaining the interaction parameters of the liquid solution were first deduced from the immiscible phase diagram of binary system. Then, the relationships between activity coefficients and interaction parameters of the binary system were also deduced. Finally, thermodynamic properties of the Pb-Zn system were calculated by using these formulas.

关键词： Lead alloys

Electrochemical characteristics of poly(ophenylendiamine) film electrodes in phosphatic solution

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Chinese Journal of Chemistry 1997年第4期15卷 343-352页

作者： Ye, BX Zhang, wm Zhou, XY WUHAN UNIV DEPT CHEMWUHAN 430072PEOPLES R CHINA

The electrochemical characteristics of poly(o-phenylendiamine) (POPD) film modified electrodes have been investigated using different electrochemical techniques. The main interest is focused on the effect of potential and film thickness on the electrode process. Good agreement has been found for the apparent diffusion coefficient estimated by chronocoulometry and impedance spectroscopy. The charge transfer process within POPD films is diffusion processes at negative and positive overpotentials and electron hopping mechanism at formal potential. The POPD film conductivity of the oxidized state is better than that of the reduced state. For all electrode processes, the H+ may penetrate the film/electrolyte interface and take part in charge transfer or protonation-deprotonation of phenazine rings.

关键词： electropolymerization o-phenylendiamine electrochemistry

Solitary Multiphonon Bound States and Periodic Wave Solutionin Inharmonic Molecular Crystals

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Journal of Materials Science & Technology 1996年第3期12卷 161-165页

作者： Liu, wm Pu, FC Zhou, BL ACAD SINICA INST MET RESINT CTR MAT PHYSSHENYANG 110015PEOPLES R CHINA

Employing the coherent state ansatz and the time-dependent variational principle, we obtain a partial differential equation of motion from Hamiltonian in inharmonic molecular crystals. By using the method of multiple scales, we reduce this equation into the envelope function and find that the amplitude function satisfied a nonlinear Schrodinger equation. Introducing the inverse scattering transformation, we gain the single-, two- and N- soliton solutions. The energy and the spatial configurations of the system are given. We also acquire the periodic wave solution and analyze its stability.

关键词： PHONON LOCALIZATION 2-PHONON

New Bibenzyl and Phenanthrenedione from Dendrobium densiflorum

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Chinese Chemical Letters 2000年第8期11卷 705-706页

作者： Fan, CQ Zhao, wm Qin, GW Chinese Acad Sci Shanghai Inst Mat Med Shanghai 200031 Peoples R China

A new bibenzyl 1 and a new phenanthrenedione 2 were identified from the stems of Dendrobium densiflorum (Orchidaceae).

关键词： Dendrobium densiflorum Orchidaceae phenanthrenedione bibenzyl

0.27-nm resolution crystal structure of Haemorrhagin I from snake venom of Agkistrodon acutus

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Chinese Science Bulletin 1997年第4期42卷 333-337页

作者： Gong, wm Teng, MK Niu, LW UNIV SCI & TECHNOL CHINA DEPT BIOLYOUNG SCIENTIST LAB STRUCT BIOLHEFEI 230026PEOPLES R CHINA

THE snake venom zinc-metalloproteinases and matrix metalloproteinases (MMP) have the similar active site and biological function. They all belong to the MMP super-family. Some

关键词： crystal structure Haemorrhagin mctalloproteinase snake venom.