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High Technology Letters 1995年第1期1卷 102-104页

作者： Xiaowen, zh. Xueping, L. Yuan, L. Xurui, X. Songbin, zh. Zongju, X. Yinghua, Z. Academia Sinica Beijing China

Ultrafine PbS particles with different sizes have been prepared in perfluorocarboxylated cation-exchanged films. The variation of PbS particle size was clarified by absorption spectra and TEM graphs. Time-resolved optical Kerr effects were measured by femtosecond pump-probe techniques. optical Kerr effect response time was estimated to be less than 165 fs. A third-order optical nonlinearity of χ(3)10-12 esu for PbS particles was obtained and it was found that it increases with the decrease of particle sizes, showing the influence of quantum confined effect on optical nonlinear behaviour of ultrafine particles.

关键词： PbS Ultrafine particle optical nonlinearity optical Kerr effect

Photoelectrochemical Behaviours of Tandem Semiconductive Electrode

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Chinese Chemical Letters 1997年第8期8卷 721-724页

作者： Jiang, DL Han, zh Song, YH Wang, QF Tong, RT Li, GC HEBEI TEACHERS UNIV DEPT CHEMHEBEI 050016PEOPLES R CHINA HEBEI CHEM ENGN INST HEBEI 050016PEOPLES R CHINA

The photoelectrochemical behaviour of the multilayer semiconductive electrode(GaAs/AlxGa1-xAs)with the structure of N+NP and N+NPP was studied in Na2So4 solution. Compared with single kind semiconductor electrode, the commposite one has broader photoresponse spectral region and larger open-circuit photovoltage,consequently gives higher solar energy conversion efficiency.

关键词： CELLS SI

Preparation and Application of Polymyxin B Affinity Membrane Cartridge

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Chinese Chemical Letters 1997年第8期8卷 745-746页

作者： Guo, W Shang, zh Yu, YN zhou, LM zhou, K CHINESE ACAD SCI DALIAN INST CHEM PHYSDALIAN 116012PEOPLES R CHINA SHANGHAI MED UNIV ZHONGSHAN HOSPSHANGHAI 200032PEOPLES R CHINA

Affinity membrane was used for the endotoxin adsorption. The matrix macropore membrane was prepared from filterpaper by chemically crosslinking, and polymyxin B was immobilized as affinity ligand. The prepared membrane cartridge can be used for the removal of endotoxin from aqueous solutions. With a cartridge of 40 sheets affinity membrane containing, the endotoxin level of the processed solution can be reduced to a minimum of 4 pg/mL.

关键词： REMoVAL

A Facile Procedure for the oxidative Coupling of 2-Naphthol and 2-Naphthalenethiol in Solid State

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Chinese Chemical Letters 1998年第7期9卷 603-604页

作者： Li, TS zhang, zh Yang, F Duan, HY Li, BZ Tewari, BB Hebei Univ Dept Chem Baoding 071002 Hebie Province Peoples R China

The oxidation of 2-naphthol and 2-naphthalenethiol to 1,1'-bi-2-naphthol and bis-2-naphthyl disulfide respectively has been carried out in excellent yields in solid state in the presence of Fe3+-montmorillonite or alu... 详细信息

关键词： oxidative coupling 2-naphthol 2-naphthalenethiol Fe3+-montmorillonite FeC1(3)-A1(2)o(3)

Involvement of apoptosis of alveolar epithelial cells in acute pancreatitis-associated lung injury

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World Journal of Gastroenterology 2000年第6期6卷 920-924页

作者： Yuan YZ Gong zh Lou KX Tu SP zhai ZK Xu JY Shanghai Med Univ 2 Ruijin Hosp Dept Gastroenterol Shanghai 200025 Peoples R China

INTRoDUCTIoNAcute pancreatitis in a common and potentially fataldisease which is associated with considerablemorbidity and a mortality rate of approximately30%;its pathogenesis remains *** of death is often due to mul... 详细信息

关键词： pancreatitis lung/injuries apoptosis protein P53 immunohistochemistry platelet activating factor

Structural and Physical Property Analysis of Zno-Sno_2—In_2o_3—Ga_2o_3 Quaternary Transparent Conducting oxide System

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Journal of Materials Science & Technology 2013年第5期29卷 419-422页

作者： P.Jayaram T.P.Jaya Smagul zh.Karazhanov P.P.Pradyumnan Department of Physics University of CalicutCalicut University(P.O.)Malappuram DistrictKerala 673 635India Department for Solar Energy Institute for Energy TechnologyInstituttveien 182027 KjellerNorway

The increasing demand in the diverse device applications of transparent conducting oxides （TCos） requires synthesis of new TCos of n- or p-type conductivity. This article is about materials engineering of Zno-Sno2- In2o3-Ga2o3 to synthesize powders of the quaternary compound Zn2-xSn1-xlnxGaxo4-δ in the stoichiometry of x = 0.2, 0.3, and 0.4 by solid state reaction at 1275℃. Lattice parameters were determined by X-ray diffraction （XRD） technique and solubility of In3＋ and Ga3＋ in spinel Zn2Sno4 was found at 1275℃. The solubility limit of In3＋ and Ga3＋ in Zn2Sno4 is found at below x = 0.4. The optical transmittance approximated by the UV-Vis reflectance spectra showed excellent characteristics while optical band gap was consistent across 3.2 eV with slight decrease along increasing x value. Carrier mobility of the species was considerably higher than the older versions of zinc stannate spinel co-substitutions whereas the carrier concentrations were moderate.

关键词： Transparent conducting oxides (TCos) Structural studies Mobility optical properties

Synthesis and hydrodesulfurization of zirconium binary nitrides

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Chinese Science Bulletin 1997年第15期42卷 1274-1278页

作者： zhang, YJ zh.o, XG zhou, zh Yan, WH Ying, PL Xin, Q CHINESE ACAD SCI DALIAN INST CHEM PHYSDALIAN 116023PEOPLES R CHINA

As a new material to be used widely in catalytic field, γ-Mo2N with high specific surface area(usually, SBET>100 m2·g-1 has recently aroused much attention. Its catalytic activities re-semble those of noble metals （Rh, Pd and Pt） in hydrogenation of hydrocarbon. Especially,it has some marvelous characteristics for deep hydrodesulfurization （HDS）, hydrodeni-

关键词： high surface area binary nitrides hydrodesulfurization H2-TPD.

Molecular cloning of differentially expressed novel rice genes induced by Magnaporthe grisea

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Chinese Science Bulletin 1997年第20期42卷 1748-1750页

作者： He, zh Dong, HT Cheng, SJ Wu, YL Dong, JX Li, DB zhejiang Agr Univ Inst Biotechnol Hangzhou 310029 Peoples R China

WE have applied the differential display (D. D.) of mRNA method to detect and clone tran-scripts that were differentially expressed between rice NILs (Near-isogenic lines) H7R (resis-tant) and H7S (susceptible) which were induced by Magnaporthe grisea. The cDNA gene-tags obtained from D. D. analysis were reamplified by PCR and screened by Southern

关键词： rice Magnaporthe grisea molecular cloning.

A Model for Liquid-Diffusion Catalytically Grown Fibrous Carbon Material

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Journal of Materials Science & Technology 1999年第1期15卷 1-4页

作者： zhang, WG Cheng, HM Su, G Fan, YY Li, F Shen, zh zhou, BL Chinese Acad Sci Met Res Inst Shenyang 110015 Peoples R China

A mechanism for the catalytically growth of vapor grown fibrous carbon (VGFC) preparing from the floating catalyst method has been proposed, in which liquid diffusion-determined diffusion of carbon atoms through catalyst particles is described mathematically, and the physical and chemical properties of the catalyst particles during the growth process are taken into account. From the model the growth rate and grown length of VGFC are calculated theoretically which coincides with the experimental data; and the necessity of reducing gas such as hydrogen in preparing VGFC is explained as to reduce Fe3C, which acts as intermediate catalyst shown by the model. Fe3C formed on the surface of gamma-Fe will stop the growth of carbon fiber if they can not be reduced at once. Additionally, the growth temperature and diameter of VGFC are also discussed in the paper.

关键词： FILAMENToUS CARBoN NICKEL FIBERS IRoN DECoMPoSITIoN CATALYSTS

Soliton Transmission over 50Km at 2.5GHz Repetition Rate

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High Technology Letters 1995年第1期1卷 22-24页

作者： Shan, zh. Minyu, Y. Baoxi, X. Caiyun, L. Jinghui, L. Xin, J. Jiangde, P. Yizhi, G. Binkun, zh. Tsinghua Univ Beijing China

A 2.5 GHz optical soliton transmission over 50km has been successfully achieved’for thefirst time in China by using erbium-doped fiber *** soliton pulse width is *** erbium-doped fiber amplifiers are pumped by InGaAs... 详细信息

关键词： optical soliton Soliton transmission Soliton communication EDFA