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The Impact on Environmental Kuznets Curve by Trade and Foreign Direct Investment in China

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Chinese Journal of Population,Resources and Environment 2005年第2期3卷 14-19页

作者： Yang Haisheng 1, Jia Jia 2, Zhou Yongzhang 1& Wang Shugong 1,31 Center for Earth Environment & Resources, zhongshan university, Guangzhou, 5102752 Lingnan College, zhongshan university, Guangzhou, 5102753 Institute of Environmental Science, zhongshan university, Guangzhou, 510275 Center for Earth Environment and Resources Zhongshan University Guangzhou 510275 China Lingnan College Zhongshan University Guangzhou 510275 China Institute of Environmental Science Zhongshan University Guangzhou 510275 China

Based on data of trade, foreign directinvestment (FDI), economic development andenvironmental conditions in China’s 30 provincesbetween 1990-2002, this paper deals with the impacton Environmental Kuznets Curve (EKC) of tradeand FDI in China. The results show no direct impacton EKC of trade, on the one hand. However, tradecontributes significantly to economic growth, andhas played a positive role in introducing advancedpollution prevention technology and environmentalmanagement methodology to China. Therefore, aproactive trade policy will help solve the environmentalpollution problem brought by economic growth. Onthe other hand, there is a positive correlation betweenFDI and pollutant emission, which proves that FDIdoes have some negative influence on environmentin China due to hasty introduction of foreign capitaland inadequate environmental management systemin China.

关键词： Environmental economy free trade FDI Environmental Kuznets Curve econometricmodel Sustainable development

SYNTHESIS AND OPTICAL PROPERTIES OF A NOVEL ORGANIC/INORGANIC HYBRID NONLINEAR OPTICAL POLYMER VIA SOL-GEL PROCESS

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Chinese Journal of Polymer Science 2001年第4期19卷 421-427页

作者： Hong-xia Xi Zhong Li Zhao-xi Liang The Institute of Chemical Engineering South China university Guangzhou 510640 China The Institute of Polymer Science, zhongshan university Guangzhou 510275, China 华南理工大学广东广州中山大学广东广州

A new organic/inorganic hybrid nonlinear optical (NLO) material was developed by the sol-gel process of an alkoxysilane dye with tetraethoxysilane. A NLO moiety based on 4-nitro-4 ' -hydroxy azobenzene was covalently bonded to the triethoxysilane derivative, i.e, gamma -isocyanatopropyl triethoxysilane. The preparation process and properties of the sol-gel derived NLO polymer were studied and characterized by SEM, FTIR,H-1-NMR, UV-Vis, DSC and second harmonic generation (SHG) measurement. The results indicated that the chemical bonding of the chromophores to the inorganic SiO2 networks induces low dipole alignment relaxation and preferable orientational stability. The SHG measurements also showed that the bonded polymer film containing 75 wt% of the akoxysilane dye has a high electro-optic coefficient (r(33)) of 7.1 pm/V at 1.1 mum wavelength, and exhibit good SHG stability, the r(33) values can maintain about 92.7% of its initial value at room temperature for 90 days, and can maintain about 59.3% at 100 degreesC for 300 min.

关键词： sol-gel process nonlinear optical material alkoxysilane dye dipole alignment relaxation chromophore

NUMERICAL PREDICTION OF PARTICLE MIXING BEHAVIOR IN A BUBBLING FLUIDIZED BED

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Journal of Hydrodynamics 2007年第3期19卷 335-341页

作者： WU Chun-liang ZHAN Jie-min Engineering College Guangdong Ocean University Zhanjiang 524088 China Department of Applied Mechanics and Engineering Zhongshan University Guangzhou 510275 China

In this article the hard-sphere Discrete Particle Model （DPM） is used to study the mixing behavior of particles in the 2-D fluidized bed. Different flow patterns in the bed for two kinds of inlet configurations, namely free bubbling and jet bubbling mode, are captured by the numerical model, under specific superficial gas velocities. To examine the degree of particle mixing, the Fan index is applied. The numerical results show that the rate of particle mixing is larger in the jet bubbling than that in the free bubbling mode. The gross circulations of particles in the jet bubbling bed give a higher degree of mixing because of the involvement of a greater number of particles.

关键词： Discrete Particle Model (DPM) particle mixing fluidized bed

SOME RESULTS ON A DEGENERATE AND SINGULAR DIFFUSION EQUATION

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Acta Mathematica Scientia 2007年第3期27卷 581-601页

作者：姚正安周文书 Department of Mathematics Zhongshan University

In this article, a degenerate and singular diffusion problem is studied. The existence of solutions is established by parabolic regularization. Some properties of solutions, for instance, asymptotic behavior, are also... 详细信息

关键词： Degenerate and singular diffusion equation weak solution existence asymptotic behavior

Problems of Production Management in Agile Manufacturing Environment and their Countermeasures

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厦门大学学报（自然科学版） 2002年第S1期41卷 239-240页

作者： CHEN Zhi-xiang (School of Management, zhongshan university, Guangzhou 510275, China)

Agile manufacturing is a new production mode. This pa per discusses the four problems of production management in the environment of a gile manufacturing, and some countermeasures are advanced: (1) Organization of production. Traditional MTO production or MTS production ca n not meet the requirement of agile manufacturing which request both high produc tivity and the manufacturing flexibility. For this, the paper advances best way is to use the production organization mode of MCP (Mass Customization Production ),and some strategies of MCP are discussed. (2) Production planning. The requirement of agile manufacturing to production pl anning embodies in two facets: synchronization and flexibility. The paper su ggests that the structure and function of MRPII system should be improved in ord er to meet the demand of agile manufacturing. (3) Production control. The problem of production control is how to reduce the u ncertainty of hand over time between enterprises and increase the production syn chronization level. The paper advances some research direction on improving production ability. (4) Quality control. The problems of quality management are how to transfer the information of customer’s quality requirement between different organizations an d how to keep the consistency and stability of quality. Some countermeasures are advanced. In the end of the paper, one case advanced administrates how to utilize the thou ghts of agile manufacturing to upgrade the competition ability.

关键词： agile manufacturing production management count er measures

A New Ceramide from the Soft Coral Cladiella humesi Verseveldt

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Chinese Chemical Letters 2000年第9期11卷 783-784页

作者： Ming Yan WANG Yi LUO Jing Yu SU Department of Chemistry, zhongshan university, Guangzhou 5 10275 Department of Chemistry Zhongshan University Guangzhou 510275 China

A new ceramide, humesamide, was isolated from the soft coral Cladiella humesi Verseveldt, which was collected from Linshui County of Hainan Province. Its structure was established by spectroscopic analysis and chemica... 详细信息

关键词： Cladiella humesi soft coral ceramide sphingosine

Electrochemical behaviors of Bi (Ⅲ) in dimethylsulfoxide

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Rare Metals 2003年第2期22卷 121-124页

作者： LI Gaoren, TONG Yexiang, and LIU GuankunSchool of Chemistry and Chemical Engineering, zhongshan university, Guangzhou 510275, China (Received 2002-02-28) School of Chemistry and Chemical Engineering Zhongshands University Guangzhou 510275

Cyclic voltammetry, chronoamperometry and chronopotentiometry were used toinvestigate the electrochemical behaviors of Bi(III) in Bi(NO_3)_3-LiClO_4-DMSO (dimethylsulfoxide)system on Pt and Cu electrodes. Experimental results indicated that the electroreducation of Bi(III)to Bi(0) was irreversible on Pt and Cu electrodes. The diffusion coefficient and electron transfercoefficient of Bi(III) in 0.01 mol.L^(-1) Bi(NO_3)_3-0.l mol.L^(-1) LiClO_4-DMSO system at 303 Kwere 1.75 X 10^(-6) cm^2.s^1 and 0.147 respectively.

关键词： electrochemistry diffusion coefficient electrochemical behaviors DMSO(dimethylsulfoxide)

Evolutionary relationship among Bothriocephalusparasitized in grass carp Ctenopharyngodon idellus (C. et V.), common carp Cyprinus carpio L. and Ma Kou Yu Opsariichthys bidens Günther in China

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Chinese Science Bulletin 1998年第13期43卷 1115-1119页

作者： LIAO Xianghua and LUN Zhaorong Ichthyology Laboratory, Department of Biology, zhongshan university, Guangzhou 510275, China Ichthyology Laboratory Department of Biology Zhongshan University Guangzhou China

RAPD was used to analyze the polymorphism of \%Bothriocephalus\% parasitic in grass carp and common carp from Guangdong, Fujian and Gansu and in Ma Kou Yu from Fujian. Though there exist differences in geographical distribution and host specificity between \%Bothriocephalus\% parasitic in grass carp and common carp, RAPD analysis shows high similarity (72.3%-96.3%) in DNA between them, whereas between \%Bothriocephalus\% parasitic in Ma Kou Yu and in grass carp and common carp low similarity (24%-28.2%) was noticed. Hence, \%Bothriocephalus\% parasitic in Ma Kou Yu and \%Bothriocephalus\% parasitic in grass carp and common carp should be regarded as separate species.

关键词： Bothriocephalus gowkongensis Bothriocephalus\% sp. \%Bothriocephalus opsariichthydis\% RAPD.

THEORETICAL STUDY OF QUASI CONTINUOUSLY TUNABLE OPTICALLY PUMPED NH3 LASER

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THEORETICAL STUDY OF QUASI CONTINUOUSLY TUNABLE OPTICALLY PU...