Table of Content

    25 March 2008, Volume 29 Issue 2
    Solvability of Singular Third-Order Three-Point Boundary Value Problems
    YAO Qing-Liu
    journal6, 2008, 29(2):  1-4. 
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    An existence theorem of solution is established for the nonlinear third-order three-point boundary value problem u(t)=f(t,u(t),u′(t),u″(t))a.e. t∈[0,1],u(0)=a,u′(η)=b,u″(1)=c, where 1/2≤η<1.In this problem,the nonlinear term  f(t,u,v,w) is a Carathodory function and the boundary condition is nonhomogeneous.Main results are expressed by integral form.
    Upper Bounds on the Algebraic Connectivity of Trees with Given Domination Number
    FENG Li-Hua
    journal6, 2008, 29(2):  5-6. 
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    This paper  presents a sharp upper bounds on the algebraic connectivity of trees with given domination number.
    Number of Planar Bisingular Maps
    LONG Shu-De, WANG Jun
    journal6, 2008, 29(2):  7-9. 
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    This paper studies the enumeration of bisingular planar maps,provides the enumerating equations satisfied by enumerating functions with the valency of root-vertex,the number of singular edges and loops and the number of edges of maps as parameters.Moreover,some explicit expressions  are also derived and the parametric solution to the former is presented.
    Probability S-Rough Sets and It’s Generation Structure
    TIAN Min-Ge, FU Hai-Yan
    journal6, 2008, 29(2):  10-13. 
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    Probability S-rough sets is proposed and mathematical structure of probability one direction S-rough sets and probability two direction S-rough sets are given,then the relation among probabilty S-rough sets,probability rough sets and Pawlak’s rough sets are analyzed.
    Constructing Some Irreducible Polynomails in Integral Ring
    ZHANG Wei, SHI Zi-Fu
    journal6, 2008, 29(2):  14-17. 
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    This paper introduces some basic properties on epimorphic polynomial.And it is concluded that if n≥5 then for any  S0Zwith |S0|=n,E(S0,T0)=.Furthermore,a method of  constructing some irreducible polynomials in Z[x] is obtained:suppose φ(x)∈Z[x] with degree≥5 and all its roots are different integral from each other,f(φ(x))  is irreducible on Q when f(x)∈Z[x] is irreducible on Q with degree equals 2.
    Integer Solutions for Diophantine Equation  2+(y+1)2=3x2
    ZHAO Kai-Ming
    journal6, 2008, 29(2):  18-19. 
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    The author has used Pell equation  and Pythagoras equation and proved the Diophantine equation 2+(y+1)2=3x2 has  inter solution,and has verified the general purpose formula.
    Oscillation and Non-Oscillation Criteria for Second Order Haf-LinearImpulsive Differential Equations
    CHEN Xian-Wei, DENG Hai-Yan, CHENG Hua-Jiao
    journal6, 2008, 29(2):  20-24. 
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    The second order half-linear impulsive equation (|u′(t)|q-1u′)′=-p(t)|u(t)|q-1u(t) is studied and  new oscillation and nonoscillation theorems are obtained,where q>0 is a constant and p(t) is an impulsive function defined by p(t)=∞n=1anδ(t-tn).
    On Spaces of All Probabilities on Polish Spaces
    FANG Tao
    journal6, 2008, 29(2):  25-26. 
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    Assume S is a Polish space and M1(s) the space of all probabilities on it.Endow M1(s) with the weak topology.Let {Xn}n≥1 be a sequence of random variables M1(s)-valued and {μn}n≥1 its first moment measure sequence.Then {Xn}n≥1 is exponentially tight on M1(s) provided so is {μn}n≥1 on S.Moreover,when S is locally compact,the weak topology on M1(s) can be induced by the following metric:d(μ,μ-)=supf∈F|μ(f)-μ(f)|μ,μ-∈M1(S),where,F is the set of bounded continuous functions on S with α-Hlder norm is uniformly bounded by a C>0,and α∈(0,1].
    Consistence of CAPM and APT Under the Stochastic Vector Hilbert Space
    LONG Hui-Dian, ZHANG Hai-Yan
    journal6, 2008, 29(2):  27-29. 
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    This paper makes track for this way of thinking,deriving stochastic vector Hilbert space and proves the consistence of CAPM and APT in the linear pricing rule.
    Robust State Estimation for Uncertain Neural Networks
    HUANG Gan, CAO Jin-De
    journal6, 2008, 29(2):  30-34. 
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    The robust state estimation problem for uncertain neural network is studied in this paper.As the uncertainty of the parameters,the states of the estimator can't be complete synchronous with the neural network,but asymptotically synchronous with errorbound is accessible.For given state estimator gain matrix,the error bound is derived.By using stable theory and linear matrix inequality approach,the design of the robust state estimator is also given in this paper.And the discussion of the estimate of the error bound is also presented.The simulation samples have proved the effectiveness of the conclusion.
    Optimum Design of Grid Structure Based on APDL
    XING Hai-Dong, HAO Ji-Ping, XU Guo-Bin-
    journal6, 2008, 29(2):  35-38. 
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    APDL,the re-development language of the common finite element analysis software ANSYS,was adopted as development tool.Member cross section areas of the grid structure were taken as the design variables.The total weight of the grid was considered as the objective function.The restrain conditions such as strength,stability,rigidity,deflection and cross section dimensions were considered.The improved one-dimensional search method and full-stress method were selected as the optimization method.The two steps,rigidity optimization and stress optimization,were taken as optimization process.The calculated results show that the optimal method has simple principle and good convergence rate.The result of Ansys can be directly used as the optimization of design.
    Way of Feature Selection Based on Text Clustering
    GONG Jing, ZENG Jian-Yi
    journal6, 2008, 29(2):  39-41. 
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    Three feature selection ways are presented for texts clustering:document frequency,term strength,entropy-based feature ranking.A comparative experiment was conducted on the there ways by using a Chinese corpus.Results show that feature selection way of TS is the best choice for the results in text clustering.
    Application of Database Technology in Bioinformatics
    XIE Min-Zhu, LIU Xin-Qiu
    journal6, 2008, 29(2):  42-44. 
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    This paper addresses some important databases and their applications in the research of Bioinformatics,and discusses the research direction.
    Design of Students’ Score Management System Based on Web Short Message Service
    HUANG Tian-Qiang, XU Hong-Zhi
    journal6, 2008, 29(2):  45-47. 
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    To make the score management systems more flexible and easier to use,a system based on web short message is designed.First,identify the functions of the system:inputting and managing score in web page,and releasing and querying score by short message.After analysing SMS communication protocols of China Mobile and China Unicom,the sending and receiving interface of message are designed.At last the two interfaces are achieved.
    Examination Paper Generating System Based on VB 6.0 and SQL 2000
    CHEN Jia-Liang, LI Jian-Feng
    journal6, 2008, 29(2):  48-50. 
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    According to the development of the teaching,this paper proposes a design idea of examination paper generation system.The outlook of the system is object-oriented visual programming tool,Visual Basic 6.0,and the backstage uses SQL Sever 2000 Datebase.This paper mainly introduces some questions such as the principle of design,function realization,and so on.And through analysing some of the system fuction module,the authors describe the practicality of the system.
    Physics and electronics
    Supersymmetry,Loop Quantum Gravity and Unifications in Particle Physics
    ZHANG Yi-Fang
    journal6, 2008, 29(2):  51-57. 
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    First,some theories of supersymmetry and quantum gravity in particle physics are stated briefly.This paper introduces a super-spin,which is independent of spin,and super-isospin and various supersymmetric transformations,so that describes unification between bosons and fermions.Further,various unifications of different interactions and other aspects in supersymmetry and superstring are discussed.The four quantitative conclusions on the loop quantum gravity are derived.Finally,a possible existence of the extensive spring for different scales from superstring to cosmic string is proposed.
    Dark Envelope Soliton in the Hydrogen-Bonded Chain with Double-Well Potentials Under Damping
    XU Hai-Qing, HU Ke
    journal6, 2008, 29(2):  58-61. 
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    By the method of multiple scales,we have investigated the behavior of waves in a hydrogen-bonded chain with symmetric double-well potentials under damping  and found that the amplitude of the lattice waves decreases and the group velocity becomes slow under the action of damping.At the same time,we have derived the Damped NLS Equation and obtained its analytical solution.The results show that:there exists propagating dark envelope soliton in the hydrogen-bonded chain with symmetric double-well potentials under the damping.
    Parameter Fault Detection and Estimation for Neutral Jump Systems Using Filters
    HE Shu-Ping
    journal6, 2008, 29(2):  62-67. 
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    The problem of fault detection and estimation for a class of markov neutral jump systems with time-delay and norm-bounded uncertainties is considered.By re-constructing the system,the dynamics of the overall augmented error systems is obtained which involves unknown inputs represented by disturbances,model uncertainty and time-delays.Both the conditions for the existence of the fault detection filter and roust fault detection filter are presented in terms of linear matrix inequalities.The proposed mode-dependent fault detection filter makes the systems have stochastically stability and has better ability of minimizing the effects of disturbances and enhancing the effects of faults to the residuals.Simulation results illustrate the effectiveness of the developed approaches.
    Physics and electronics
    The Implementation of User Interface of Voice Dialing Software on Smart-Phone Based on Symbian Operating System
    ZHANG Hong-Xin, WANG Xiang
    journal6, 2008, 29(2):  68-71. 
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    Based on Symbian operating system,the user interface of voice dialing software on smart-phone is implemented in VC++ 6.0 compiler environment.Through the software compiling and simulation with a simulator,the validity of the software design is tested.At last,when the software is down loaded to the mobile phone platform through Bluetooth and infrared format,the feasibility of the project is validated.
    Ontology-Based Study on Knowledge Aggregation Strategy
    TANG Yi-Zhi, ZHANG Zhong-Yi
    journal6, 2008, 29(2):  72-76. 
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    The application of ontology in knowledge base management is studied.The element model structure of ontology-based knowledge bas is given,the establishment and aggregation of knowledge base ontology is explained,and the colored petri net is used to verify the aggregation project.
    Semiconductor Diffuse Kiln Temperature Control Modeling Based on  BF  NN
    CAI Bing, HU Rong-Yu, LIU Chuan-Qing
    journal6, 2008, 29(2):  77-78. 
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    According to the problem of temperature control of semiconductor diffuse kiln,an new control approach is described in the paper,such as BF NN.The RBF NN construct is 3-9-3.Simulation results show that control method has high quality and high effect.
    Fuzzy PI Control on Permanent Magnet Synchronous Motor
    ZHANG Bang-Ying, SUN Wei, HUANG Peng-Hui, YANG Hui-Yuan
    journal6, 2008, 29(2):  79-82. 
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    A fuzzy controller is presented to conquer the effects of the parameter-float,non-linearity and coupling in permanent magnet synchronous motor by using its independence of the object model  and its good robustness.The simulation results show that the permanent magnet synchronous motor control system based on fuzzy control has quick response speed,high steady accuracy and good robustness.
    Fingerprint Image Preprocessing Method Combining Wavelet Packet Denoising and Image Quality Assessment
    LEI Ke-Jun, TAN Yang-Hong, YANG Xi, HE Yi-Gang
    journal6, 2008, 29(2):  83-85. 
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    Through analyzing noise types of fingerprint image and the shortcomings of traditional image processing algorithms,this paper presents a kind of fingerprint image preprocessing method combining wavelet packet denoising and image quality assessment.The simulation results show that this method can effectively remove fingerprints of random noise,and reduce the effects of dry fingerprints,wet fingerprints and incomplete fingerprints to the rate of fingerprint recognition.Also it is a simple algorithm having fast processing speed to meet real-time requirements.
    Biological resources
    The Effect of Salicylic Acid on Expression of the Gene Coding Glycine-Rich Protein Binding RNA in Tobacco
    DONG Xia, LI Wen-Zheng, HUANG Kua-Ke, LAN Jian-Qiang, LI Zheng-Feng, LIU Shi-Gui
    Journal of Jishou University(Natural Sciences Edition), 2008, 29(2):  86-91. 
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    The gene fragments(GRPs) coding glycine-rich protein binding RNA in tobacco materials were got by RT-PCR.Northern hybridization blot analysis was used to demonstrate the expression pattern of the GRP gene at different times after treatment of salicylic acid in different tobacco materials.Inducded by salicylic acid,the GRP genes of Nicotiana could up-regulate expression.The expression attained the highest in 3h,then began descending.The three tobacco varieties had different resistance abilities to TMV.The expression level of two genes correlated with the resistance ability.The increase of two genes in Honghuadajingyuan with stronger resistance ability was higher than that of Yunyan 85 with less resistance ability.The expression pattern of the gene induced by salicylic acid in tobacco was got.It was found that in different tobacco varieties with different resistance abilities,the up-regulation extents of expression of the GRP gene were quite different after treatment of salicylic acid.And it is also found that the up expression became significant after 3 hours treatment.From the results of this study,it is suggested that GRP gene can be used as a marker gene to investigate salicylic acid metabolism in tobacco varieties so as to demonstrate their response to abiotic stresses.
    Information and Engineering
    Screening and Identification of a High-Efficiency Cyclohexanone-Degrading Strain JDM-3-11
    HE Qian, LIU Zhu-Xiang, YI Lang-Bo, XIAO Huai-Dong, HUANG Ke, CHEN Yi-Guang, PENG Qing-Jing
    journal6, 2008, 29(2):  92-95. 
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    This paper reported screening a strain numbered JDM-3-11 for effectively degrading cyclohexanone,which was acclimated and isolated from the sludge from Baling Petrochemical Company in Yueyang.The strain was tentatively identified as Rhodococcus ruber by bacterial morphological observation,physiological and biochemical test,and 16S rRNA sequences analysis.The study showed that when the content of cyclohexanone was 2000 mg/L,the temperature was 30 ℃,the rotate speed was 150 r/min and pH was 7,the cyclohexanone biodegrading rate of strain JDM-3-11 within 70 hours reached 94.79%.
    Chemistry and chemical engineering
    Surface-Modification of CdS Nano-Particles by Using Pepsin and Its Analytical Application
    CHEN Li-Hua, QIN Shi-Dong, BU Xiao-Ying, CHEN Yi-Chao
    journal6, 2008, 29(2):  96-100. 
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    CdS semiconductor nano-particles were synthesized in aqueous solution by using mercaptoethylic acid as the stabilizer as well as surface-modification reagent.The average size of CdS nano-particles estimated from TEM graph is ca.10 nm.The CdS nano-particles exhibited strong ultraviolet absorption at 292 nm and fluorescence emission at 524.8 nm.When surface-modification of CdS nano-particles were replaced with pepsin,ultraviolet absorption peak kept same,fluorescence emission intensity decreased as well as fluorescence peak shifted to 462.4nm.Temperature and pH value influenced surface-modification of CdS nano-particles.Under optimal conditions,a concentration of 2~20 mg/L of pepsin could be determined on the basis of fluorescence intensity decrease ratio of CdS nano-particles,with a detection limit 3σ of 0.13 mg/L (n=10).The proposed method was applied to the detection of the concentration of pepsin in human gastric juice.
    Chemical Constitute Analysis of the Food Oil from Zanthorylum Bungeanum by GC-MS
    SHI Ai-Hua, 欧Yang-Yu-Zhu , LI You-Ji, CHEN Xiao-Dong, XIE Xian-Hua
    journal6, 2008, 29(2):  101-105. 
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    The conditions for ultrasonic extracting oil from Zanthorylum bungeanum nucleus and shuck were studied.Chemical constitute of oil from Zanthorylum bungeanum nucleus and shuck were analyzed by GC-MS.The experimental results show that the extract yield of Zanthorylum bungeanum oil from nucleus and shuck is 7.8% and 48.9%,respectively.Constitute analysis shows that chemical constitutes of oil from nucleus and shuck and different.Constitute of oil by polar solvent extraction from nucleus is olefin,and its percentage concentration is 48.73%,no acidamide substance in oil.Constitute of oil by polar solvent extraction from shuck is carboxylic acid and carboxylic ester,and its percentage concentration is 66.45%,acidamide substance percentage concentration is 3.84%.
    Medical Science
    Inhibition of Growth and Induction of Apoptosis in Human Breast Cancer Cell Line by 5,4’-Di-n-octoxyl- 7-gem-Difluoromethylene-Genistein  in  Vitro
    ZHENG Fang, XIANG Qi-De, JIANG Hao, CAO Jian-Guo
    journal6, 2008, 29(2):  106-111. 
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    PURPOSE  To investigate the effect and mechanism of the Genistein derivative 5,4’-Di-n-octoxyl-7-gem-difluoromethylene-genistein(DOdFMG) on the growth and apoptosis of  human breast cancer(MCF-7) cells line in vitro.and provide a molecular mechanism of this effect so as to find a new candidate for tumor chemotherapy.METHODS   Soft ager-colon assay was used to test colon formation inhibitory effect of MCF-7 by DOdFMG.PI stain flow cytometry(FCM) was used to analyse the apoptosis  after being treated with DOdFMG.Western blotting assay was used to detect the effect of DOdFMG on the CK2 and NF-κB protein expression level of breast cells.Results: DOdFMG significantly inhibited proliferation and growth of MCF-7 cells in dose-dependent manner.DOdFMG significantly induced apoptosis. Western-blotting analysis indicated that after exposures to DOdFMG3.0,10.0,30.0μmol/L for 24h,the protein expressions of CK2 were down-regulated by 12.50%,41.50%,67.30%,the protein expressions of NF-κB were down-regulated by 20.50%,51.47%,71.93% respectively in comparison with the control group.After MCF-7 cells were treated with DOdFMG at 30.0 μmol/L for 6,12 and 24 h,the protein expressions of CK2 were down-regulated by 27.73%,44.8%,65.2%,the protein expressions of NF-κB were down-regulated by 20.5%,49.83%,69.93%  respectively in comparison with the control group.These showed that the expressions of CK2,NF-κB were decreased in a time and dose-dependent manner  after treatment with various concentrations of DOdFMG..In comparison with the lead compound Gen,DOdFMG was more effective.CONCLUSION DOdFMG possesses a significant inhibitory effect on the cell proliferation and growth of human breast carcinoma cell(MCF-7) in vitro  DOdFMG significantly induced apoptosis of human breast cancer (MCF-7 ) cell line.The mechanism might be associate
    d with down-regulation of ck2 and NF-κB.
    Environment for the Community Sports in the Medium-SizedCities of Southwest Minority Region——A Case in Jishou,Hunan
    PENG Chang-Jin
    journal6, 2008, 29(2):  112-116. 
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    In the southwest minority region,the economic development and social development demand and provide economic background for the community sports development.Although the sportsmanship cultivated through centruies is a good foundation for developing the community sports,the lavk of regulations forms the greatest obstacle.Therefore,to make the community sports develop in harmony with the city development,it is inportant to work out related regulation.
    Content of the Performance Evaluation in the Course of the Physical Education and Health
    LU Chen, LING Qi-Ming
    journal6, 2008, 29(2):  117-119. 
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    From the brief description of the definition of the performance evaluation, the article discusses the content of the performance evaluation. Through the survey on the content of the performance evaluation in the physical education, made by some experts in the fields of education and physical teaching, the article tries to define the content of the performance evaluation in the course of physical education.
    Influence of Stilt Race on College Students' Cardiopulmonary Function
    WU Ya-Bin, SONG Jia-Hua, TANG Li
    journal6, 2008, 29(2):  120-122. 
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    After three months' stilt race training,the twelve male trainees' pre-and-pro heart rate,time vital capacity,PWC120 and VO2max were studied.The results show that stilt race can improve significantly the cardiovascular function,physical work capacity,maximal oxygen consumption and vital capacity.The results prove that stilt race can improve students' physical function,and it is a safe and effective way to keep fitness.
    Quantificational Administration of the Postgraduate Education in Chemistry Major
    ZHU Wei-Guo, ZHOU Ji
    journal6, 2008, 29(2):  123-125. 
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    This paper presents the necessity of quantificational administration for postgraduate education based on the educating aim and requirement during postgraduate education in chemistry major.To promote the postgraduate educating quality in our country,a quantification judging system for postgraduate education in this major is constructed according to the characteristic of educating process under the guidance of science evolutive theory.
    Influence of International Capital Flow Control Relaxation to the Inside and Outside Balance in China and the Countermeasures
    LIU Gang-Yi, XIE Guang-Hua
    journal6, 2008, 29(2):  126-128. 
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    Non-endurance in long-term of the fixed rate of exchange policy is one of important lessons to the financial crisis in Asia.However, currency authority in China just maintains the fixed rate of exchange arrangement through the capital control.The cost of this method accelerates the increase with the opening to the outside world.Under the international capital flow control relaxation condition,the cost of implementing the fixed rate of exchange surpasses its income.The corresponding countermeasure is adopting the  elastic system arrangement to Renminbi exchange rate,especially the relaxation fluctuation;speeding up the marketability reform of Renminbi interest rate;stabilizing the exchange rate level by international convention,instead of by the central bank in the foreign exchange market buying or selling to supply and demand the difference.
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