Table of Content

    25 July 2014, Volume 35 Issue 4
    Mathematics
    Circle of Inversion’s Equation of Symmetric Points Pair and Its Properties
    ZHANG Jian-Yuan, ZHANG Yi-Min, HU Xiao-Fei, HAN Yan
    journal6, 2014, 35(4):  1-7. 
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    This paper gives the circle of inversion’s equation for the symmetric point pairsby two points,use it to study the circle of inversion’s some properties,and obtain the unique existence condition of the symmetric point pairs of circle of inversion.On the geometric transformation this paper has solved an inverse problem about the circle of transformation and inversion,which has given the symmetric points pair and radius of base inversion condition.
    Uniqueness  of the Best Approximation in a New Haar Type Space
    FANG Dong-Hui
    journal6, 2014, 35(4):  8-12. 
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    The problem of the best approximation with generalized restrictions is considered in this paper.By introducing a new Haar type space,the uniqueness and  strong uniqueness of the best approximation on this Haar type space are given.
    Finite Groups with Few Noncenteral Conjugacy Classes
    LI Mei-Yan, YOU Xing-Zhong
    journal6, 2014, 35(4):  13-16. 
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    How the non-central conjugacy classes of a finite group influence its structure is investigated and the finite groups with at most four non-central conjugacy classes are classified.
    Chaotic Behavior of a Class of Induced Hyperspace Mapping
    LI He
    journal6, 2014, 35(4):  17-18. 
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    The bottom space and its induced hyerspace mapping of Devaney’s chaos are explored.By applying transitivity,periodic density and weak mixture of topological space,the problem of bottom-induced hyperspace mapping of chaotic behavior is resolved when the bottom space is chaotic.
    Extragradient-Filter Method for Solving Nonlinear Complementarity Problems
    LONG Jun, ZENG San-Yun
    journal6, 2014, 35(4):  19-22. 
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    Combined with the Josephy-Newton method,a new globalization strategy without any merit function was established for nonlinear complementarity problem.The strategy presents an extragradient-filter algorithm based on extragradient step and filter technology.The extragradient step can reduce the distance with the optimal solution of the problem.So the resulting algorithm is globally convergent to a solution.Under natural assumptions,locally superlinear rate of convergence can be obtained.
    Rogue Wave in Coupled Nonlinear Schrdinger Equations with Variable Coefficients
    LIU Hui
    journal6, 2014, 35(4):  23-26. 
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    Firstly,the special Schrdinger equations are connected to the classical coupled nonlinear Schrdinger equations by a gauge transformation.Next,rogue wave solutions of the classical coupled nonlinear Schrdinger equations are obtained through Darboux transformation.Therefore,we can get the rogue wave solutions of the coupled nonlinear Schrdinger equations with variable coefficients.Finally,the dynamic behavior of the coupled nonlinear Schrdinger equations with variable coefficients under the influence of the super-lattice potentials is discussed.
    Computer
    Segmentation Algorithm of Otsu Threshold About the Runway Image of Intelligent Car
    ZHANG Chao, PENG Jin-Zhang, LIU Chun-Ge, HE Yu-Hua
    journal6, 2014, 35(4):  27-30. 
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    The environment of the runway of intelligent car is complicated,and the traditional otsu thresholed segmentation method can not achieve mecise segmentation of the runway image.On the basis of the analysis on the birnarization of the tradtional otsu method,the block otsu binarization for intelligent runway image processing is proposed.This algorithm can achieve fast and precise segmentation of runway threshold and effective runway recognition,effectively copmplete path identification.
    Physics and electronics
    Schwarzschild Solution of Einstein Field Equations:A Classical Example for General Relativity Teaching
    CHEN Ying-Ming, TAN Ming-Tao, ZHANG Zhi-Min
    journal6, 2014, 35(4):  31-33. 
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    Einstein field equations are difficult nonlinear second-order differential equations,but its analytical solutions are of considerable practical significance for general relativity teaching.This paper demonstrates the centrosymmetric static solutions of Einstein field equations in details,namely Schwarzschild solutions,which can play a guiding role for the beginners of general relativity and be a reference for the research of general relativity teaching.
    Development of Nano-Particle Measurement System Based on Photon Correlation Spectroscopy
    PENG Shan-Qiong
    journal6, 2014, 35(4):  34-42. 
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    Different aperture fiber were applied for transmission of laser and scattered photons,different aperture y-type fiber were used for transmission of incident and scattered light synchronously.Based on photon correlation spectroscopy the nanometer particle measuring system was designed.Besides,the affects of fiber core diameter,microscope objectives numerical aperture,temperature and scattering angle were discussed.Experiments show that it is accurate and stable for nano-particle size distribution measurement,all experiments were finished in super clean room,in which temperature was controlled at about 13~22 ℃.
    Design of 50 MHz  Hign-Stability OCXO
    XIONG Qi, ZENG Jian-Ping
    journal6, 2014, 35(4):  43-45. 
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    Through the analysis on the oscillating and temperature-controlled circuits,a 50 MHz high-stability miniature OCXO (Oven Controlled X-tal Oscillator) is designed.The Pierce parallel circuit and the DC thermostatic circuit are used respectively as the oscillating circuit and temperature-controlled circuit.The structure of oven is improved for smaller size and the measurement results of some simples are given in the end.
    Civil Engineering
    Influence of Confining Pressure over Permeability of Fractured Maokou Limestone
    WANG Xing-Hong, WAN Wen, DUAN Yan-Ping
    journal6, 2014, 35(4):  46-49. 
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    The impact of confining pressure on the permeability of fractured Maokou limestone.Maokou limestone sample was cored from coal dam was analyzed MTS815 rock mechanical system was used to research the permeability under different confining pressures and the same axial pressure.The test results showd that permeability decreased with confining pressure increase under the same axial pressure,and when confining pressure was low,permeability of fractured Maokou limestone changed largely with confining pressure increase;on the contrary,the permeability changed relatively little when confining pressure was high.Volumetric stress,permeability coefficient and osmotic pressure were fitted well by exponential function.
    FEA on Settlement of Pile-Supported Georeinfoced Pavement
    ZHOU Jing-Zhou, MA Shi-Cheng, ZHUO De-Bing
    journal6, 2014, 35(4):  50-53. 
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    A simplified Ansys finite element  model is proposed for modeling pile-supported georeinforced pavement.The Winkler springs with different constant are used to simulate the behavior of the piles and the soft soil.The solution from the Ansys is achieved consistent with the experiment data.The finite element parameters analysis shows that the setttlement decreases when the values of compression modulus of the granulars,elasticity modulus of the geosynthetic or the reaction coefficient of the piles keep rising.And when these parameters increase to a certain degree,the settlement decrease would not go further.Meanwhile,the effects of layer number on settlement can be neglected.
    Geotechnical Engineering Field and Foundation Stability Evaluation
    LIAO Jian
    journal6, 2014, 35(4):  54-58. 
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    Geotechnical engineering field and foundation stability evaluation is the important basis of foundation design and construction.Correct evaluation shows the engineering geological conditions and characteristics of geotechnical engineering,which is relevant  safe,reliable and economical to engineering design and construction.According to the project of Xichang Sunshine Experimental School,and combining with the characteristics of the natural geological environment and engineering,detailed geotechnical engineering data and geotechnical parameters required for the design and construction are put forward.The geotechnical engineering evaluation of the building foundation for the construction drawing of the project and the required engineering geological data are provided.The types of foundation,foundation forms,foundation treatment are clarified,and suggestions for prevention of unfavorable geological conditions are given.
    Biological and chemical
    Different Expressions of vscO Gene from Vibrio Alginolyticus in Different Environments
    PANG Huan-Ying, ZHOU Ze-Jun, DING Yu, HUANG Yu-Cong, WU Zao-He, JIAN Ji-Chang
    journal6, 2014, 35(4):  59-63. 
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    To understand the impact of environmental factors on the expressions of vscO gene,the mRNA expressions of vscO gene in different growth periods and with environmental factors,such as temperature,salinity and pH,were detected by RT-PCR method. The results indicated that the mRNA expression of vscO reached a maximum at 28 ℃ in salinity of 2%,with the initial medium pH 7.0 when V. alginolyticus was in the middle phase of growth.
    Preparation and Characterization of CdSe/SiO2 Core Shell Luminescent Nanoparticles
    WANG Yi-Lin, YANG Kun, FENG Pei, ZHOU Shao-Cheng, NONG Xiong-Ji, QIN Ze-Hua
    journal6, 2014, 35(4):  64-68. 
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    High quality CdSe quantum dots were prepared in an aqueous medium with selenium dioxide as selenium source and mercaptosuccinic acid as stabilizer.And the core-shell CdSe/SiO2 nanoparticles were prepared via reverse microemulsion method.The CdSe QDs with the emission peak ranging from 531 to 554 nm could be prepared when pH was 11.0 and  nCdnSenMSA= 1∶0.2∶1.4 within 540 min,and the maximum quantum yield was 14.7%.The properties of the obtained CdSe quantum dots and CdSe/SiO2 nanoparticles were characterized by UV-vis absorption spectra,photoluminescence spectra,X-ray powder diffraction,transmission electron microscopy and Fourier transform infrared spectroscopy,respectively.
    Extraction of Mn2+ and NH3-N from Eletrolytic Manganese Slag Using Anolyte as Extractant and Its Kinetic Study
    FEI Jiang-Chi, FAN Dan, TENG Yao, HE Ze-Qiang, XIONG Li-Zhi
    journal6, 2014, 35(4):  69-73. 
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    Extraction of Mn2+ and NH3-N from electrolytic manganese slag with anolyte as extractant was studied.The influence of liquid-solid ratio,extraction time,temperature on the extraction efficiency of Mn2+ and NH3-N was investigated.Results indicated that the extraction efficiency of Mn2+ with anolyte was better than that of NH3-N.The optimum extraction efficiency of Mn2+ was 72.1% which was obtained when the liquid-solid ratio (mL/g) was 10∶1 at 50 ℃ for 30 min.The optimum extraction efficiency of NH3-N 45.6% which was obtained when the liquid-solid ratio was 10∶1 at 50 ℃ for 40 min.Kinetic study suggests that the extraction of Mn2+ from electrolytic manganese slag with anolyte as extractant accords with pseudo first-order kinetics equation,while that of NH3-N agrees well with pseudo second-order kinetics equation.
    Economy and management
    Current Situation and Concept of New-Type Urbanization in Xiangxi Autonomous Prefecture
    LIU Xiao-Jian, YOU Xin-Cai
    journal6, 2014, 35(4):  74-76. 
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    Due to the natureal,economic,and historical restrictions,the urbanization in Xiangxi Autonomous prefecture started from a poor foundation,and there exists a large gap from the overall level of Hunan province.Therefore,the task of realizing the new-type urbanization is really tough.It is necessary to get a clear understanding of the current situation and developing disadvantage of Xiangxi,to have a comprehensive consideration coordinating policy,global planing,specific measures,and fund rasing,so that a practical approach to urbanization in Xiangxi can be obtained.
    Effects of Land Use Change on Carbon Emission in Changshaand the Spatial-Temporal Patterns
    ZHOU Ai-Fang, HE Qing-Yun
    journal6, 2014, 35(4):  77-80. 
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    According to the relevant statistic data,the effects of land uses on carbon emission and their spatial-temporal pattems in Changsha were measured and analyzed.The results showed that the carbon emission showed an rising trend with the average speed of 66.51×104t·a-1 from 2001 to 2012 in Changsha,and there were obvious differences in carbon emission between districts and countries in 2012,but the carbon intensity showed a declining trend.In addition,the results reflected that the construction land and farmland were the major carbon sources in Changsha.Accordingly,some suggestions are put forward to reduce the carbon emission through land use optimization in Changsha.
    Sports
    Development Trend and Countermeasures of  Sports Competition Performance Market in Changsha-Zhuzhou-Xiangtan City
    CHEN Min
    journal6, 2014, 35(4):  81-84. 
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    Using the methods of expert interviews,literature research,on-the-spot investigation,the development trend and countermeasures of  sports competition performance market in Changsha-Zhuzhou-Xiangtan City are explored.During the development of sports industry,a large market of sports competition performance has formed,which reflects the sports competition performance and other cultural forms of cross-border integration and internationalization.Further effective work is required in the positive development of urban outdoor sports competition performance market,promotion of domestic urban competition performance brand,discovery of folk sports resources,expansion of the space of sports competitions,and quality promotion.
    Inheritance and Development of “Human-Dragon”  in Jianghua County
    ZUO Er-Fei, LI Chao-Hong, ZHOU Xin-Hua
    journal6, 2014, 35(4):  85-88. 
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    Literature review,local survey and interview are used to study the origin,characteristics as well as the current situation of “Hunan-Dragon”,a ethnic sports event,in Jianghua County.The approach to its inheritance and development is put forward.To inherit and develop such sports event,it’s necessary to extract its essence,to carry out the training and cultivate talents of this sports events,to promote local tourism,to introduce it into physical education at schools,and include it in the local sports meeting.
    Library and Information
    Construction of Mobile Internet-Based Digital Library Service Model
    WANG Xia
    journal6, 2014, 35(4):  89-92. 
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    Relying on the mobile Internet,mobile digital library,as a modern digital library information service,came into being in the form of a brand new service,and has gradually met people's mobile digital reading needs.The author analyzes the history and status of mobile digital library development at home and abroad,reviews the current major mobile digital library service models,and introduces the service model construction of APP service WeChat.Accordingly some suggestions for construction are put forward,which has a certain reference value for the construction of mobile digital library.
    Medical Science
    Community-Based Rehabilitation Demand of Stroke Patients in Xiangxi Autonomous Prefecture and Influential Factors
    DING Xiao-Lan
    journal6, 2014, 35(4):  93-96. 
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    To obtain the information of community-based rehabilitation demands of stroke patients in Xiangxi autonomous prefecture and the relevant influential factors,stratified cluster sampling method was used to conduct a questionnaire survey among 206 stroke patients in Xiangxi.Results showed that 46.6% patients had never heard of community-based rehabilitation; the community-based rehabilitation demands mainly included rehabilitation training,rehabilitation treatment,rehabilitation knowledge popularization,and rehabilitation nursing.Multiple factor logistic regression test showed that the number of patients' children was the first influential factor on rehabilitation knowledge popularization and rehabilitation demand,medical expense was the first influential factor on rehabilitation referral service demand,and age was the first influential factor on rehabilitation nursing demand.It can be concluded that stroke patients in Xiangxi have low degree of awareness of community-based rehabilitation,community rehabilitation demands are diversified,and the number of patients' children,medical expenses,and age have important impact on the community-based rehabilitation demands.
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