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September 15,2009
Volume 2,Issue 17
Pages 1754-1860
Subject Area:Industrial Economics,Financial markets,Applied Mechanics,Computational Solid Mechanics,computational fluid dynamics,Hydrodynamics

Title: The construction of Chinese direct investment open industrial network and case analysis

Authors: CHEN Nanxi, ZHANG Xiangyang
PP: 1855～1860
Abstract: Based on industrial network theory, this paper takes the foreign investment activities of Chinese enterprises for object, and creates an analytical structure of Chinese direct investment (CDI) open industrial network. Following this, it analyzes a CDI case of Skyrung, which has established an industrial park of appliances. The research result indicates that the CDI innovation mode of household appliance industrial park embedded in industrial network has created more value, which has a demonstration effect. Besides, it is a beneficial example for those manufacture companies in China to realize a long-turn development. At the same time, Skyrung needs to increase its entire CDI network performance via dynamic interaction between link-network and network-network.
Keywords: foreign investment; industrial network; Chinese direct investment; Chinese enterprises

Title: Cost analysis of abroad speculative capital

Authors: ZHENG Jichao, LIU Qing
PP: 1849～1854
Abstract: The appreciation expectation of Renminbi (RMB), together with higher interest rate than that of America, has attracted abroad speculative capital. By cost analysis, the paper found that there was extra tax cost for the entry of speculative capital through trade account; the current transfer faced realistic check, so it is suitable for small capital transfer; and the foreign direct investment can enter with low cost and earn special tax advantage. Based on above analysis, the paper gives some corresponding advices.
Keywords: international finance; speculative capital; trade account; foreign direct investment

Title: Study on hedging model based on VaR method

Authors: ZHOU Qinyan, CHEN Jinlong
PP: 1842～1848
Abstract: This paper uses a value at risk(VaR) method to measure the risk of hedging, and calculates the hedging ratio when VaR is minimum, which solve the problem that minimum variance model didn’t consider the risk with spot’s returns. Then this paper applies this method to aluminum futures market, and maculates the effectiveness of hedging. Compared to the minimum variance model, the hedging model with VaR method proves its advantage by empirical approach.
Keywords: finance; value at risk; hedging; effectiveness analysis

Title: Study on the correlation between the index future simulative market and spot stock market based on VAR model

Authors: HU Xiaobing， HE Xujing, SHI Fangli
PP: 1835～1841
Abstract: With the impending advent of the index future market practice, the correlation between spot stock market and index future simulative market attracts much more academic attention for its enormous significance as a reference in design and preparation for the formal operation of index future market. This paper is centered on the accurate quantitative description and analysis of the interactive relationship of the simulative market and spot stock market in a dynamic perspective based on vector auto regression (VAR) model, impulse response as well as variance decomposition, and it is found that the index future simulative market exerts a great influence on the composition and distribution of risk return in the bi-variate VAR system involved herein. At the end, some policy advice is proposed according to quantitative analysis made above so that the risks could be better avoided in the coming official index future market.
Keywords: finance; index future simulative market; correlation; vector auto regression model; impulse response; variance decomposition

Title: The influence of the industrial structure on the economic growth in cities of Hunan

Authors: MAO Xinxin, SHA Jinghua, ZHOU Jinjin
PP: 1829～1834
Abstract: According to the theories of industrial economics and regional economics, this paper researched the status and changes of the industrial structure in Hunan. Using the method of shift-share analysis was did a comparative analysis on industry growth and the impact of industrial structure on economic growth and industrial competitiveness of 14 cities in Hunan. Then, the paper calculated the impacts that the first, second and third industries of 14 cities in Hunan affected the economic growth of Hunan. The conclusion showed that the industrial competitiveness of cities in Hunan promoted economic growth better than the industrial structure. Changsha, Xiangtan, Chenzhou, Loudi were the most powerful cities made contribution to economic growth in the region. The second industry of cities was the strongest industry to promote the economic growth of Hunan, and the structure of the third industry needed to be adjusted at once.
Keywords: industrial economics; industrial structure; economic growth; shift-share analysis

Title: Analysis of exhibition economy of Ningbo and its influence on regional economy

Authors: LI Haobo, ZHONG Changbiao
PP: 1824～1828
Abstract: The basic theory of exhibition economy is introduced and main features of the exhibition economy are summarized in this paper. It uses Ningbo, one of the most prosperous cities in the Yangtze River delta, as the point of penetration, and uses strength weakness opportunity threat (SWOT) analysis to make a systematic analysis on the comprehensive conditions for the exhibition economy development of Ningbo. It also relates to the positive influence of the exhibition economy on the improvement of the industrial structure, relief of employment pressure, regional economic cooperation, and regional infrastructure construction.
Keywords: regional economics; Ningbo; exhibition economy; regional economy

Title: AHP-based research of countermeasures of disaster prevention system of regional security: a case study of snow disaster in southern China

Authors: SHAN Wu, LIU Peilin
PP: 1818～1823
Abstract: Based on analytic hierarchy process (AHP), disaster prevention system of regional security is divided into three sub-index systems, and further divided into a number of indexes. The weight of each index is determined after analysis. The results of the analysis show that: it should be as soon as possible to improve the disaster prevention system of regional security, to establish an early-warning system for monitoring disasters, to improve disaster warning capability, to formulate disaster insurance system and the energy reserves plan, to formulate contingency plans for enterprises for strengthening disaster prevention capabilities, to strengthen emergency management system for grass-roots level, and to assist non-government agencies.
Keywords: regional economics; disaster prevention system of regional security; analytic hierarchy process; index system

Title: Social-economic bearing capacity, a new perspective to interpret regional development: Maqu county of Gannan state as an example

Authors: YANG Bin, GAO Xincai, CAO Zijian
PP: 1811～1817
Abstract: Regional development depends on not only natural resources and ecosystems, but also the social and economic systems which gradually become stable in the process of the long-term development. According to it, the paper proposes a new concept of the social-economic bearing capacity. Based on the main socio-economic activity entities (government, enterprises, communities, families), the paper builds a basic research paradigm, and subjects typical Maqu county of Gannan to empirical analysis. The research shows that the social-economic bearing capacity of Maqu county continuously increases with fluctuations after the reform and opening-up, but the bearing capacity of Maqu county obviously declined after the year 2000. This phenomenon deserves social focus.
Keywords: regional economics; social-economic bearing capacity; regional development; Maqu county

Title: Two-oriented society policy and transformation of Chang-Zhu-Tan economic distribution equilibrium

Authors: FENG Zhengqiang, LUO Yuan
PP: 1807～1810
Abstract: Changsha—Zhuzhou—Xiangtan（Chang-Zhu-Tan） applied to be a pilot area for two-oriented society building in the process of integration. The paper mainly investigates the underlying mechanism of two-oriented society policy influencing Chang-Zhu-Tan economic distribution. Qualitative analysis result indicates that the requirement of two-oriented society policy is bound to rise enterprises’ costs and that it is the most likely choice for enterprises to reduce their ground rent spending in the short run. By taking a game research into the issue of “how the improvement gets moving”, the result is obtained that developers and enterprises are able to have fine interactions, that is, developers will develop new towns for enterprises to settle in. A linear R-Q diagram is constructed to simulate realization process of the equilibrium transformation, and the result shows that, with the rise of new town’s ground rent, enterprises’ removal wave will arrive at a new equilibrium spontaneously.
Keywords: regional economics; two-oriented society; game; ground rent

Title: Finite element analysis of car’s rigid collision based on Hyperworks software

Authors: YUAN Xianju
PP: 1803～1806
Abstract: The paper analyzes a car’s rigid collision according to mechanical characteristics of motor vehicle collisions and using high-precision calculation ability of Hyperworks finite element software, and simulates the process of the passengers’ gesture change and concussion. The vehicle body deformation and gesture change of the passengers are analyzed via the simulation results, and an idea for revising design parameters is put forward.
Keywords: other subjects of mechanics; body deformation; finite element; rigid collision

Title: Rigid-flexible coupling dynamic analysis of rarefaction wave launch system

Authors: WANG Yingze, ZHANG Xiaobing
PP: 1796～1802
Abstract: The dynamic response of the rarefaction wave launch system is studied by rigid-flexible coupling subsystem method. Based on the structural characteristic of the rarefaction wave launch system, the system is divided into two subsystems, one is a system of multi-rigid bodies, and the other is a system of moving masses-flexible beam. The mathematical models for these two subsystems were established respectively by the theory of multi-rigid bodies and flexible beam, and then the rigid-flexible coupling dynamic model for the whole system was obtained by considering the coupling effect between these two subsystems. By the numerical calculation, the vibration response of each body and interaction among these bodies were obtained, and then the dynamic response for the rarefaction wave launch system in the condition of considering the flexible effect of the barrel was discussed in detail.
Keywords: nonlinear vibration mechanics; rigid-flexible coupling; rarefaction wave launch system; dynamic response; numerical calculation

Title: Study on optimal design of light steel door-truss structure for warehousing

Authors: LIANG Li, WU Songnan
PP: 1789～1795
Abstract: The paper mainly studies the optimal design of light steel door-truss structure for warehousing. Based on the original structure and simulation analysis of its mechanical properties, the rafter layout of roof system, the spacing of single-truss and member support are correspondingly improved for enhancing the structural strength, rigidity and stability. On the basis of the improved structure and under the premise of meeting specification requirement, the light steel door-truss structure is optimally designed by changing, cycle checking and gradually reducing the cross section size of overall structural member with the ANSYS parametric design language（APDL）. The mechanical properties such as changes in stiffness, strength and stability of the optimized structure are completely analyzed under three load cases. The comparative analysis of the mechanical properties between the original and the improved structure and between the improved and the optimized structure is carried out.
Keywords: engineering mechanics; light steel door-truss structure for warehousing; ANSYS software; optimal design study; mechanical properties

Title: Experimental study on acoustics emission source localization based on least square method

Authors: ZHANG Zhizhen, ZHU Li, ZHOU Rui, GAO Feng
PP: 1786～1788
Abstract: Acoustics emission (AE) source localization technology is a lossless detecting way having high development potential. To average the error caused by randomicity of signal so as to improve the locating precision, a new locating method based on the least square method was brought forward. And using PCI-2 system produced by （physical Acoustics Corporation, PAC） in US, experiment was done on a flagstone having 60 cm-long sides. Seven typical positions were selected and pencil lead breaking was used as the simulative AE source. The results show that AE source localization based on the least square method is feasible and has high precision.
Keywords: solid mechanics; acoustics emission; least square method; source localization

Title: Collision force response spectra analysis based on nonlinear elastoplastic model

Authors: ZHANG Xuekun, ZHOU Youhe
PP: 1778～1785
Abstract: In this paper, the collision force response spectra for simple harmonic excitation are plotted by modeling structures as single degree of freedom systems using the nonlinear elastoplastic collision model. The spectra indicated that the structural parameters, such as natural frequencies of bodies, damping, distance among structures and time lag due to ground motion, may affect the peak value of collision force. According to the spectra, material and construction with structural parameters corresponding to lower peak values can be selected to design a building, so as to decrease structural damage.
Keywords: solid mechanics; collision force response spectra; nonlinear elastoplastic collision model; peak value of collision force

Title: Application of ABAQUS in computing temperature field and creep thermal stress field of concrete

Authors: ZHENG Haiyuan, QIN Zhongguo
PP: 1773～1777
Abstract: In this paper, ABAQUS is used to compute unsteady temperature field and creep thermal stress of a new water board of some floodgate reinforcement project. User subroutine DFLUX and UMAT are also used in the analysis. Compared with the measured data of temperature field and thermal stress in the reinforcement project, the computation results indicate that ABAQUS is feasible in computation of temperature field and creep thermal stress of concrete.
Keywords: solid mechanics; temperature field; creep thermal stress; redevelopment; finite element

Title: The effects of corrugation on the aerodynamic force production of a model dragonfly wing in gliding flight

Authors: XU Lei, SUN Mao
PP: 1766～1772
Abstract: The effects of corrugation on the aerodynamic force production of 2D model insect (dragonfly) wings in translational motion at Reynolds number 1 000 and angle of attack ranging from 0 to 40 were studied using the computational fluid dynamics (CFD) method. A representative wing corrugation was considered. The aerodynamic forces of a 2D flat-plate model under the same condition as the corrugated model were also computed. Numerical flow simulations indicate that the difference in aerodynamic efficiency between two models is small (the corrugated model is slightly inferior to the flat-plate model). The fluctuation in aerodynamic forces of corrugated model is smaller than that of flat-plate model after flow separation at relatively large angle of attack. Instead of improving the aerodynamic performance, corrugations should be mainly evolved to enhance the structural strength of wings.
Keywords: biofluid mechanics; dragonfly; computational fluid dynamics; corrugation; gliding

Title: Numerical analysis of vortex-induced motion of a 2D circular cylinder in cross-flow with low Reynolds numbers

Authors: LIANG Liangwen, WAN Decheng
PP: 1754～1765
Abstract: In this paper, the numerical analysis of the vortex-induced motion of an elastically mounted circular cylinder in cross-flow with low Reynolds numbers is presented. The phenomena of lock-in and beating are observed. The effect of mass ratio and mass-damping parameter on the dynamic response of the vortex-induced motion of the solid cylinder is also taken into account, and the results show that the combined parameter of mass ratio and mass-damping plays an important role on the response of vortex-induced motion of the cylinder.
Keywords: computational fluid dynamics; flow around circular cylinder; vortex-induced motion; fluid-structure interaction

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