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Exact quantum and TST-CEQ study of the collinear reaction O+HCl

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Chinese Journal of Chemistry 1995年第4期13卷 299-305页

作者： JU, gz CHEN, DZ NANJING UNIV DEPT CHEMNANJING 210008PEOPLES R CHINA SHANDONG NORMAL UNIV DEPT CHEMJINAN 250014PEOPLES R CHINA

Exact quantum calculations of reaction probabilities have been carried out using hyperspherical coordinates for the collinear reaction O+HCl(upsilon less than or equal to 1)-->OH(upsilon' less than or equal to 1)+Cl. A generalized LEPS potential energy surface with a barrier height of 8.12 kcal/mol has been used in the calculations. According to the calculated results we found that (1) the reaction probability oscillates with energy, (2) the reaction probability shows vibrational adiabaticity, although it is poorer than that for symmetric reaction Cl+HCl. The analysis of resonance has also been done. The reaction rate constants and average cross sections have been calculated by TST-CEQ method. The rate constants are in agreement with that by QCT and smaller than the experimental one. Finally, the threshold has been estimated and is in good agreement with that of the literature.

关键词： QUANTUM SCATTERING HYDROGEN CHLORIDE CROSS SECTION RATE CONSTANT

Is there a "chain-foldability" effect without neighboring moiety-assistance?

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Chinese Journal of Chemistry 1997年第2期15卷 174-177页

作者： Ji, gz Cui, XL Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China

The coaggregating tendencies of five methyl esters of saturated or unsaturated single-chain carboxylic acids, namely octanoic (8-Me), dodecanoic (12-Me), stearic (18-Me), oleic (c18:1-Me) and elaidic (t-18:1-Me) acids, were investigated in five aquiorgano binary solvent systems, V/V DX-H2O (Phi=0.50, 0.45, 0.40, 0.30, 0.20), using naphthylethyl octyl (Np-8), dodecyl (Np-12), hexadecyl (Np-16) ether as fluorescent probes. The orders of their coaggregating tendencies changed in solvents of different Phi values. Our results could be rationalized by a chain-foldability effect without neighboring moiety participation.

关键词： chain-foldability effect coaggregation fluorescence

Numerical Simulation of Wave Forces on Seabed Pipelines

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China Ocean Engineering 1998年第2期13卷 203-211页

作者： Li, YC Chen, B Lai, gz Dalian Univ Technol Dept Civil Engn Dalian 116024 Peoples R China Dalian Univ Technol Dept Engn Mech Dalian 116024 Peoples R China

A three-step finite element method (FEM) together with Large Eddy Simulation (LES) is applied to incompressible turbulent flow around seabed pipelines at relatively high Reynolds numbers. Both two dimensional and three-dimensional numerical simulation is carried out to determine the three-dimensional effect. The results of numerical simulation agree quite well with the wave forces acting on pipeline models measured in physical model test.

关键词： three-step finite element method large eddy simulation seabed pipeline wave force

HCV genotypes in hepatitis C patients and their clinical significances

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World Journal of Gastroenterology 1999年第6期5卷 547-549页

作者： Huang F Zhao gz Li Y China Med Univ Affiliated Hosp 2 Dept Infect Dis Shenyang 110003 Liaoning Prov Peoples R China

INTRODUCTIONIt has been discovered that hepatitis C virus (HCV) presents considerable nucleotide variation and has many genotypes. At least twelve, 5 of which prevalent, i.e.: Ⅰ/1a, Ⅱ/1b, Ⅲ/2a, Ⅳ/2b, and Ⅴ/3a types. The different genotypes of HCV may possess some retationship with regional distribution, clinical manifestation, response to treatment and prognosis of HCV infection, thus to study the genotypes of HCV further in different areas is of practical value. We detected HCV genotypes in 94 patients with hepatitis C and in 6 patients with primary hepatocarcinoma by PCR assay with four kinds of type-specific primers with a view to study the distribution of HCV genotypes in hepatitis C in Shenyang area and their clinical significances.

关键词： hepatitis C hepatitis C virus genotyping

Joint Distribution of Wave Heights and Wavelengths and Distribution of Wave Steepness

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China Ocean Engineering 1999年第2期14卷 145-154页

作者： Zheng, gz Liu, XH Xu, DL Ocean Univ Qingdao Phys Oceanog Lab Qingdao 266003 Peoples R China

A joint probability density is derived for wavelengths and wave heights. It is asymmetric and depends only on the spectral bandwidth epsilon defined by Cartwright and Longuet-Higgins (1956). After that a theoretical probability density for wave steepness is obtained. It tends to Rayleigh distribution as epsilon --> 0. A comparison between theoretical steepness distribution and laboratory experiment result shows good agreement.

关键词： wave height wavelength wave steepness probability density

Formation and aggregation number of sodium dodecyl sulphonate-polyvinylpyrrolidone aggregates

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Chinese Science Bulletin 1997年第21期42卷 1810-1814页

作者： Li, F Li, gz Xu, GY Wang, HQ Shandong Univ State Educ Comm Key Lab Colloid & Interface Chem Jinan 250100 Peoples R China

THE interaction of surfactants with water-soluble polymers has been an active subject for manyyears. Early investigations were mainly concerned with the effect of synthetic detergents onnatural proteins, such as gel. These studies were motivated by observations of biologicalphenomena involving surfactants and proteins such as the inactivation of bacterial

关键词： aggregation number surface tension fluorescence sodium dodecyl sulphonate polyvinylpyrrolidone.

Total integration method of three-dimensional fluorescence spectrometry

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Chinese Science Bulletin 1997年第18期42卷 1541-1544页

作者： Yan, Y Xu, JG Chen, gz XIAMEN UNIV DEPT CHEMRES LAB SEDC ANALYT SCI MAT & LIFE CHEMXIAMEN 361005PEOPLES R CHINA

THREE-dimensional fluorescence spectrometry (TDFS) is a new technique of spectrofluorimetry that was developed two decades *** use of the abundant information

关键词： three-dimensional fluorescence spectrometry fluorescence Monte-Carlo integration.

Short-term effect of Salvia miltiorhiza in treating rat acetic acid chronic gastric ulcer and long-term effect in preventing recurrence

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World Journal of Gastroenterology 1998年第2期4卷 77-78页

作者： Wang, gz Ru, X Ding, LH Li, HQ First Affiliated Hosp Qiqihaer Med Coll Dept Pathophysiol Qiqihaer 161042 Heilongjiang Peoples R China First Affiliated Hosp Qiqihaer Med Coll Dept Surg Qiqihaer 161042 Heilongjiang Peoples R China China Med Univ Dept Pathophysiol Shenyang 110001 Liaoning Peoples R China

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ＳｈｏｒｔｔｅｒｍｅｆｅｃｔｏｆＳａｌｖｉａｍｉｌｔｉｏｒｈｉｚａｉｎｔｒｅａｔｉｎｇｒａｔａｃｅｔｉｃａｃｉｄｃｈｒｏｎｉｃｇａｓｔｒｉｃｕｌｃｅｒａｎｄｌｏｎｇｔｅｒｍｅｆｅｃｔｉｎｐｒｅｖｅｎｔｉｎｇｒｅｃｕｒｅｎｃｅＷＡＮＧＧｕｏＺｈｏ...

关键词： Danshen disease models, animal Salvia miltiorrhiza stomach ulcer acetic acid cimitidine gastric mucosa recurrence rats , Wistar chronic diseases

Effects of expressing calmodulin antisense RNA on cell proliferation and transformation in human hepatoma cell lines

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Chinese Science Bulletin 1997年第9期42卷 787-791页

作者： Liu, gz Hu, YY Liu, HT BEIJING NORMAL UNIV DEPT BIOLBEIJING 100875PEOPLES R CHINA

AS the main intracellular receptor of Ca2+,calmodulin（CaM）,which is extensively distribut-ed in various types of eukaryotic cells,is a multifunctional protein regulating the cell growth,differentiation and transform... 详细信息

关键词： calmodulin antisense RNA cell proliferation and transformation gene expression.