Journal of Jishou University(Natural Sciences Edition)

Completeness of BL^*_ΔSystem

WU Hong-Bo

journal6, 2009, 30(6): 1-5.

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The basis BL* system and BR0-algebra are studied.A schematic extension BL*Δ of BL* system is introduced by adding the unary connective Δ to BL*,and then the concept of ΔBR0-algebra is proposed.Morever,the Δ-filter of ΔBR0-algebra and corresponding properties are studied.Finally,the completeness of BL*Δ is proved by using the properties,and the generalized deductive theorem in BL*Δ is given.

Construction of Infinite Families of Singular k-Tight Optimal Double Loop Networks

ZHOU Jian-Qin, WANG Wen-Juan

journal6, 2009, 30(6): 6-10.

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A new approach is presented to construct infinite families of singular k-tight optimal double loop networks.As its applications,the authors give some infinite families of singular k-tight optimal double loop networks when N(t)=3t2+(2i-1)t+B,B=k2+k-m,1≤i≤3 and N(t)∈Ii(t) for integers k>1/2m+（3+(2i-1)2）/24,m≥（i-i2-1）/3.

Asymptotic Stability on a Class of Nonlinear Neutral Systems

BAO Jun-Dong

journal6, 2009, 30(6): 11-17.

Asbtract ( 2003 )

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This work gives a criterion for asymptotic stability of a class of nonlinear neutral differential systems.By
introducing suitable vector Lyapunov-Krasovskii functional,a delay dependent criterion which not only depends on the discrete delay but also on the neutral delay is presented.This paper has also broken away from the assumption of 0<|α|<1,which is used in the operator D in earlier report.The sufficient condition is expressed in terms of linear matrix inequality.In the end of the work,utilizing Matlab toolbox,the numerical simulation examples are presented to illustrate feasibility of the criterion.

H^s-a.e. Closed Set Covering and Hausdorff Measure for the s-Sets

XU Shao-Yuan

journal6, 2009, 30(6): 18-20.

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The s-sets have been studied in this paper.Using the Vitali Covering Theorem the author gets a basic property describing the Hausdorff measure of the s-set by the notation of Hs-a.e.closed set covering.As applications,the author obtains the characteristic on the Hausdorff measure of the s-straight s-set.

Two Results of Zero Order Meromorphic Function

ZENG Fan-Fu

journal6, 2009, 30(6): 21-25.

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Constructing a filling discs of meromorphic function of zero order,the existence of Borel direction of function is proved,and two results on argument distribution are obtained.

Boundary Value Problem for Second Order Ordinary Differential Equations with Integral Boundary Conditions

WANG Lan-Fang

journal6, 2009, 30(6): 26-28.

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This paper deals with the study of boundary value problem for second order ordinary differential equations with integral boundary conditions.By means of fixed-point theorems,some sufficient conditions are obtained to guarantee the uniqueness of positive solution and existence of at least three positive solutions of the boundary value problems.

Improvement of Hardy-Hilbert’s Type Integral Inequality with Some Parameters

NIE Cai-Yun, YANG Xin-Mei

journal6, 2009, 30(6): 29-31.

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Hardy-Hilbert’s type integral inequality with parameters is investigated.Some improvements of Hardy-Hilbert’s integral inequality are given by means of a sharpening of Holder’s inequality.Some new inequalities are established.

A Nonmonotone Adaptive-BFGS Trust-Region Method

JING Shu-Jie, ZHANG Xiao-Liang

journal6, 2009, 30(6): 32-34.

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A nonmonotone adaptive-BFGS trust-region method for unconstrained optimization is presented.Not only the trust-region radius in this method is automatically determined by using first order information，but combining with the advantage of the BFGS algorithm.Under certain conditions,the global and superlinear convergences of the algorithm are proved.

Support Vector Machines for the Chaotic Time Series Prediction

XIANG Chang-Sheng, ZHOU Zi-Ying

journal6, 2009, 30(6): 35-39.

Asbtract ( 2004 )

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Support vector machine is a learning technique based on the stuctural risk minimization principle,and it is a class of regression method with good generalization ability.Based on chaotic time series characteristic,a prediction model of chaos time series is built by using the support vector machine.In this paper,the method,the characteristic,and the selecting of the key parameters are discussed about the model.A simulation example is taken to demonstrate correctness and effectiveness of the proposed method.The result shows that the model can better process a complex chaos time series data,and has better generalization and prediction accuracy.

Web System Structure Comparison Based on ActiveX,Jave RMI and CORBA

LIANG Gao-Yong

journal6, 2009, 30(6): 40-42.

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Web system structures based on ActiveX by Microsoft,Jave RMI by SUN,and CORBA are compared.The results show that Web technology based on CORBA has advantages in experssion layer,application layer and data layer.

Improved K-Means Algorithm Based on a Simple Genetic Algorithm

YIN Peng-Fei, ZHANG Xiao-Dan

journal6, 2009, 30(6): 43-45.

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K-means algorithm is sensitive to initial value,easy to fall into local minimum value.In response to these shortcomings,the idea of genetic algorithm is proposed based on genetic algorithm and k-means algorithm for hybrid clustering method.In order to test the performance of clustering algorithm,a set of experiments are conducted by using k-means algorithm and the improved algorithm,and the clustering results by the two algorithms are compared.It is showed that the clustering algorithm can effectively solve the clustering problem.

Wave Dispersion Property in Magnetized Plasma Channel Antenna

XIA Xin-Ren, YIN Cheng-You, WANG Shou-Jie, JIN Xian-Long

journal6, 2009, 30(6): 46-53.

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In order to solve the problems existing in the current antenna for high power microwave weapon,the idea of a magnetized plasma channel used as antenna for radiating electromagnetic pulse is presented.The normal modes of Magnetized Plasma Channel Antenna (MPCA) in lossy gas are analyzed.The concrete realization method of this antenna is simply described.The geometric-model of MPCA is created based on the operating principle of this antenna.The strictest dispersion equation of MPCA is deduced by applying the boundary conditions of electromagnetic fields.Discussion is stressed on the variations of propagation constants with plasma parameters,surrounding material and external magnetic field.The analysis shows that MPCA in a finite magnetic field possesses some different properties compared with a plasma channel antenna where infinite external magnetic field exists.These results are useful for practical application of the antenna.

Chemical Physical Phenomena During Charge-Discharge Processes of MH/Ni Battery and Its Mechanism

YANG Chuan-Zheng, LOU Yu-Wan, XIA Bao-Jia

journal6, 2009, 30(6): 54-58.

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The fine structure and microstructure changes of electrode active materials β-Ni(OH)2 and AB5 alloy during charge-discharge processes are studied in detail by X-ray diffraction (XRD).Chemical physical of electrode active materials and physical conductive mechanism are elucidated.To be brief,the physical conductive mechanism of MH/Ni battery is the directional migrating and moving of hydrogen ions between the positive and negative electrodes because hydrogen atoms are deviating from the β-Ni(OH)2 lattice and inserting into AB5.

Acoustic-Phonon Transmission and Thermal Conductance in a Width-Change Quantum Waveguide

YE Fu-Qiu, PENG Xiao-Fang

journal6, 2009, 30(6): 59-62.

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The authors investigate the effect of the value change of L on low temperature phonon transport in a width-change quantum waveguide by using the scattering-matrix method.The calculated results show that the transmission coefficient almost doesn’t change when the width of the quantum waveguide changes small,but it will become large with the value increase of L when the width of the quantum waveguide changes more.And at low temperature,the thermal conductance almost doesn’t change with the width-change of the quantum waveguide,but it will become large with the value increase of L when the temperature hoists.

Macro-Model of Single-Electron Transistor Based on Voltage-Controlled Unit

ZHOU Shao-Hua, XIONG Qi, YANG Hong-Guan, DAI Da-Kang, ZENG Jian-Ping, ZENG Yun

journal6, 2009, 30(6): 63-65.

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Based on the analysis of characteristics in single electron tunneling junction and single-electron transistor,using the equivalent circuit method,macro-model was proposed based on the voltage-controlled unit.Simulation was executed subsequently to get characteristic curves.Comparison between curves was obtained by simulator,and ideal curves was done to indicate the same trend.Numerical calculations verify that the model is reasonable.

Initialization and Control of SAA7113 Based on CPLD

ZENG Qing-Li, MENG Fan-Bin, CHEN Shan-Rong

journal6, 2009, 30(6): 66-70.

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In order to achieve the right video image acquisition and multi-format output,images collected by low-speed memory are usually used.This article describes the characteristics and application of SAA7113 video decoder chip.Implementation of the SA7113 hardware circuit configuration structure is researched based on CPLD.Through I²C bus,the VHDL language is used to initialize the control of programming.Therefore,video acquistion,image information collection by 8 MHz/s low-speed memory,and multi-format output can be achieved.

Switching Power Supply Based on Digital Control

LI Yi-Ming

journal6, 2009, 30(6): 71-73.

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This research studies the new digital control of switching power supply based on TI’s TMS320F2812.Replacing analog controllers with digital controller is an innovation for switching power.Being different from the past,the digital control of switching power supply improves the PFC and system efficiency and reduces weight and volume,and it is easy to debug and upgrade power supply.

Choosing Cross-Section of Cable According to Economic Current Density and Economic Cross-Section

LIN Qing, YANG Yan-Ling

journal6, 2009, 30(6): 74-77.

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Economic selection method of choosing medium and low coltage power cable cross-section according to economic current is described.Through case studies,the authors explain how to take advantage of economic currents and economic cross-section.Approach of choosing the power cable cross-section is put forward,according to the economic currents,which can save energy and protect the environment.

Development and Design of Pneumatic Feeding Control System Based on CIP FieldBus

ZHAO Guang-Wen, TANG Zan-Yu

journal6, 2009, 30(6): 78-80.

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The application technology of both DeviceNet and ControlNet CIP fieldbus to the Pneumatic feeding system in a tobacco processing line is considered.In the project development and design,using a two-tier network model,that is,ControlNet for the upper and DeviceNet for the bottom,PLC control procedures and touch-screen procedures are designed according to the network configuration.

Preparation and Characterization of Superfine NiO Powders by Homogeneous Precipitation Method

XIONG Li-Zhi, HE Ze-Qiang, SUN Xin-Yang

journal6, 2009, 30(6): 81-85.

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Superfine NiO powders were prepared by a homogeneous precipitation method with an aqueous solution of nickel nitrate hexahydrate and urea.The microstructure,surface morphology of NiO were characterized by thermogravimertric (TG) analysis and differential thermal analysis (DTA),X-ray diffraction (XRD),scanning electron microscope (SEM),infrared (IR) spectroscopy.Superfine NiO with particle size of 1~3 μm can be obtained by this method.NiO delivers a discharge capacity of more than 670.5 mAh/g,and the capacity loss per cycle after 80 times is only 0.031%,suggesting that superfine NiO derived from this method is an excellent anode material for lithium ion batteries.

Copolymerization of Propylene Oxide with Carbon Dioxide Catalyzed by Zn-Co Double Metal Cyanide Complexes

WU Yuan-Xiang, CHEN Shang, WU Xian-Ming, ZHANG Xing-Hong

journal6, 2009, 30(6): 86-90.

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Double metal cyanide complex (DMC) based on Zn₃[Co(CN)₆]₂ was prepared and employed as catalyst for the copolymerization of propylene oxide and carbon dioxide.Effects of reaction conditions on catalytic performance and the compositions of products were investigated.The results show that these catalysts demonstrate highly catalytic activity over 2 000 g copolymer per gram of Zn₃[Co(CN)₆]₂.The copolymers prepared were characterized by FT-IR,1H NMR,and the molar fraction of CO₂ for copolymer (FCO₂) was as high as 0.3 under optimum condition,coupling product of propylene carbonate was also identified as co-product.It is also found that lower temperature and high reaction pressure are favorable for incorporation of CO₂ into copolymer.

Improvement of the Determination Experiment of Passivation Curves of Carbon Steel in Ammonium Carbonate Solution

HE Ze-Qiang, XIONG Li-Zhi, WU Xian-Ming, LIU Wen-Ping, YANG Zhao-Xia

journal6, 2009, 30(6): 91-93.

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The passivation curves of carbon steel in ammonium carbonate solution are determined by linear sweep voltammetry method with electrochemical work station of CHI 660 B to replace potentiostatic meter.Compared with the traditional method,this method has some advantages such as easy operation,high sensitivity and precision,convenient data processing.

Cloning and Expression of ompH Gene of Avian Pasteurella Multocida Strain X-73

HE Cui, ZHANG Lei, LI Ke, EnTe-Ma-Ke-.Bu-La-Ti-Bai , WU Lu-Mu-Han-.Na-Zi-尔Bie-Ke

journal6, 2009, 30(6): 94-97.

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The ompH gene encoding mature outer membrane protein H (OmpH) without a signal peptide was isolated from genomic DNA of avian P. multocida type strain X-73 by PCR.The BamHⅠand XhoⅠ digested PCR product was cloned into prokaryotic expression vector pMAL-p2X to provide a recombinant plasmid pMAL-p2X-ompH.The fusion protein of MBP-OmpH was expressed in E.coli BL21 harboring the recombinant plasmid pMAL-p2X-ompH by IPTG induction,and the recombinant protein was detected with SDS-PAGE.The sequence analysis showed that the ompH gene coding the mature protein was 1 002 bp in length,and completely identical to the previously reported ompH gene of strain X-73;while the SDS-PAGE showed that a single protein band with molecular weight of 78 kDa in E. coli after IPTG inducing.The recombinant protein OmpH can be used as positive control on development subunit vaccine for fowl cholera.

Empirical Research on the Agricultural Economic Development and Income Increase of the Farmers in the Wuling Mountain Area

LI Min

journal6, 2009, 30(6): 98-102.

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As the main industry in rural ethnic minority areas,agriculture has an important significance for farmers’ income.From the theories on the agricultural economic development and the income increase of farmers,taking Xiangxi Autonomous Prefecture and Enshi Autonomous Prefecture as example,the paper comparatively analyses the impact on the income increase of farmers of the agricultural economic development and agricultural structure in the Wuling Mountain area,and puts forward some measures on promoting agricultural economic development and the income increase of farmers.

Analysis on Gradations of Concerned Parties in Financial Body

WANG Yue-Wu

journal6, 2009, 30(6): 103-106.

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To understand more systematically the relationship between concerned parties in a financial body,the author studies their gradations from three aspects:financial rights,powers of financing governance and their significance.

Empirical Study on the Relationship Between Corporate Social Responsibility and Consumer Purchase Intention in Fast-Moving Consumer Goods Industry

LONG Hai-Jun

journal6, 2009, 30(6): 107-109.

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Through a questionnaire survey,the author studies the influence of corporate social responsibility on consumer purchase intention in fast-moving consumer goods industry from both absolute level and relative level.Through the study,there is a positive relationship between corporate social responsibility (absolute level) and consumer purchase intention.The finding also shows that with the improvement of corporate social responsibility performance in industry,consumer purchase intention correspondingly improves.

Study on Student Recruitment of Municipal Colleges and Universities from a Perspective of Scientific Development

CHEN Shao-Fei, LI Hong-Xiong

journal6, 2009, 30(6): 110-112.

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Municipal colleges and universities should aim their orientation at their target employment market in an advanced way.The concepts of “recruitment being impelled by employment promotion”,“student resources being attacted by specialties”,and “recruitment being stabilized by teaching quality” should be set up so as to work out a scientific recruiting plan,to strengthen the specialties of running school,and to maintain a favorable circulation of recruitment,cultivation,and employment.In this way,a sustainable development situation of “fluent input and prosperous output” can be achieved.

Humanistic Management of College and University Teachers in Western Minority Areas

ZHAO Zhi-Qiang

journal6, 2009, 30(6): 113-114.

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Theory of humanistic management,characteristics of college and university human resources in western minority area,and the necessity of humanistic management of teachers are analyzed.Thus,the humanistic management measures of college and university teachers in western minority areas are put forward,which is a reference for the exploration of a new personnel managing mode in the colleges and universities of western minority areas.

Effects of Salvianolic Acid B on Pregnancy-Induced Hypertension in Rats

GAO Hui, LV Jiang-Ming , LI Chun-Yan, PENG Ying-Fu, HE Ling

journal6, 2009, 30(6): 115-117.

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45 pregnant rats were randomly divided into normal pregnant groups,model groups and Salvianolic acid B(Sal B)-treated groups.Pregnancy-induced Hypertension(PIH) rats model were induced by endotoxin infusing via caudal vein,and Sal B had been administered to the therapy groups at 22.5 mg·kg-1 per day.The blood pressure and 24 hours urine protein of three groups of rats were recorded every two days.All of the rats were killed;the number of fetal rats and the weight of placenta were measured on the 20th day of gestation.The results showed that blood pressure and 24 hours urine protein in Sal B-treated groups were obviously lower than those in model groups,the number of fetal rats was much more and the weight of placenta was heavier.So the research indicates that Sal B can be used to treat PIH.

Domestic Research of Social Health Education to Patients with Diabetes：A Systematic Review

HU Qu, LI Chun-Mei, TIAN Fen

journal6, 2009, 30(6): 118-121.

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Objective To show the domestic research literatures of social health education to patients with diabetes thoroughly and provide best evidence for further study by systematic review.Methods The domestic research literatures of social health education to patients with diabetes up today was searched with standardized terms matched within MeSH.The evaluation criteria for methodology were worked out according to cochrane systematic review handbook (version 4.2.5).The research literatures was excluded,included，assessed，classified and sorted through reading the title,abstract and full text.Results The social health education to patients with diabetes must be strengthened，no matter whether patients’ culture is high or low.It can enhance the compliance behaviors and therapeutic compliance and control blood sugar more efficiently.At present,it is default of standardized education models,though the different education models are effective.Conclusion Social health education to patients with diabetes can enhance the quality of life and lower the incidence of diabetes in the high risk population,but it lacks large samples randomized controlled study and more widespread and profound study.

Countermeasures for the Development of Rural Sports in Hunan Province

ZHOU Ping, TANG Zhang-Hui, SUN Xiao

journal6, 2009, 30(6): 122-123.

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Rural sports is not only the emphasis of physical education of Chinese people,one of the important factors of impelling new rural communities construction,but also one of the key parts of national fitness system.During the course of new rural communities construction,as the dominant power,the government should adhere to scientific development concept and theoretical innovation,and maximize the supply of rural public sports service while developing rural economy,so as to enhance the harmonious development of rural sports.

Current Situation and Measures of Vocational College Offering Public Sports Courses

DING Huai-Min

journal6, 2009, 30(6): 124-126.

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Operation way of school,quality of teachers,related disciplines,and diversified practice bases are significant factors in determining whether a vocational college is qualified to offer public sports courses.The basis for cultivating public sports majors and measures for sustainable development of public sports are as follows:to set up diversified training goal,to readjust and improve curriculum,and to enhance practice.

Current Situation of Cultivating Reserve Sports Talents in Small Towns of Xiangxi Autonomous Prefecture

WANG Hai-Bo, HAI Gang

journal6, 2009, 30(6): 127-128.

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The current situation of cultivating reserve sports talents in Xiangxi Autonomous Prefecture is surveyed.The results show that although there are some achievements,there still exists imbalance between the coaches’record of formal schooling and their capability,and the tralining quality needs to be improved.Although the athletes resources can be guaranteed,the percentage of talent output is too low.The major reasons lie in the fact that the investment is not enough,and the talent training and selecting are not scientific.

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