Table of Content

    25 September 2007, Volume 28 Issue 5
    Mathematics
    Stability on the Janic' R.R. Inequalities of an n-Simplex
    ZHANG Yao
    journal6, 2007, 28(5):  1-5. 
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    The definition of a metric between any two n-simplexes is given such that the set of all n-simplexes is a metric spaces.Moreover,the author proves the stability on Janic' R. R. inequality concerning to the volume and the radius of the escribed hyperesphere for an n-simplex.
    Research of the Integral Factor of Differential Equations
    LIU Jun, TANG Wen-Juan
    journal6, 2007, 28(5):  6-10. 
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    The integral factors of the differential equations are studied,and the integral factors of categories of differential equations are obtained.
    An Inequality on the Arithmetic Function δ(n)
    LE Mao-Hua
    journal6, 2007, 28(5):  11-12. 
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    For any positive integer n,let δ(n) denote the sum of distinct divisors of n.It is proved that there exist infinitely many positive integers n satisfying δ(n)/n>(d(a0)+d(a1)+…+d(ak))/(k+1),where ai(i=0,1,…,k) are all digits of the decimal notation of n,and d(ai)(i=0,1,…,k) is the divisor function of ai.
    Invariant Set for Mobius Transformation Groups in n
    DAI Bin-Lin
    journal6, 2007, 28(5):  13-15. 
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    This paper studies the  Mobius Transformations groups in n,obtains several inequalities on discrete groups and  gives several theorems about invariant set.
    Quality  of  Self-Opposite  Z-Spaces  and Uniform Protruding Z-Spaces
    YANG Wan-Bi
    journal6, 2007, 28(5):  16-20. 
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    Based on the concept of  Z-spaces,B-Z-spaces and conjugate Z-spaces,the definition of self-opposite Z-spaces and uniform protruding Z-spaces is put forward,and their qualities are obtained as well.
    Eigenvalues  and  Eigenvectors  of  φ-Concave  (Convex) Operators
    XU Lu, PENG Bi-Jin
    journal6, 2007, 28(5):  21-23. 
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    This paper uses cone theory to  investigate the existence of the  eignvalues  and eigenvectors  for φ-concave (convex)  operators  and  some  relations  to  them.The main results  develop  the  theory  on φ-concave  (convex)  operators.
    On  the  Carlson  Inequality
    SHI Yan-Ping, SHANG Xiao-Zhou, HE Le-Ping
    journal6, 2007, 28(5):  24-26. 
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    An improvement of the Landau inequality is established by a sharpening of Cauchy’s  inequality.And the Carlson inequality is strengthened.
    Convergence in Discrete-Time Network of Three Neurons
    CAO Ai-Hua, LI Xue-Mei, ZHOU Bin
    journal6, 2007, 28(5):  27-28. 
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    By using the Lyapunov function,the authors describe the convergence of discrete-time model of three-cell cellular neural on a line,and some interesting results are obtained.
    Catastrophe Index Model and Insurance Actuary Pricing of the Derivatives
    ZHOU Jun
    journal6, 2007, 28(5):  29-33. 
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    Under jump-diffusion catastrophe index model,the author analyzes the pricing of catastrophe derivatives under stochastic interest rates with a compound Poisson process.By using the approach of insurance actuary pricing,the formulas of values of catastrophe options and catastrophe bonds are obtained.
    Computer
    Study and Improvement of Generation Method of Safety Big Prime Number  in RSA Algorithm
    YOU Xin-E
    journal6, 2007, 28(5):  34-37. 
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    This paper introduces the basic principle and the encryption and decryption process,and analyses and compares different prime testing algorithms.It gives a new algorithm of safety big prime generation by considering the  good and bad points of each method.
    A Robust Watermarking Authentication Algorithm
    ZHANG Xiao-Dan
    journal6, 2007, 28(5):  38-41. 
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    A robust watermarking authentication algorithm with the value of visual masking as the quantization size is proposed.The security of it depends on hiding keys instead of quantization steps,which can be published,so that it could avoid some security gaps when using human visual characteristics.The fundamental advantage of our technique lies in its ability to distinguish common image processing from telltale tampering,and to tell what processing the image was made for the common image processing based on the error image of watermarks.Finally discussed in detail,the proposed algorithm and simulation results are given.
    Research on Retrieval and Matching of Instruction Components
    HE Fei, JIANG Dong-Chu, XIANG Ji-Wen
    journal6, 2007, 28(5):  42-44. 
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    Retrieval technology of instruction component is the key of its technology.This paper builds a retrieval model of instruction component and three level retrieval tree and matching tree,presents four matching models and a method of three-step synthesis retrieval of instruction component,and designs a matching algorithm of instruction component at last.It provides a method of retrieving in other component libraries.
    Physics and electronics
    New Phenomena Emerging Possibly under the Conditions of High Temperature, High Energy and High Density
    JIAO Shan-Qing, XU Di-Yu, GONG Zi-Zheng
    journal6, 2007, 28(5):  45-49. 
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    Recently the theoretical studies and the experimental surveys have indicated that new phenomena can emerge under the extreme conditions of high temperature,high energy and high density.For example,there is the problem about the fate of the standard model,the problem of baryon number and leptonic number violation when temperature is higher than Planck mass (1019 GeV),and the problem of mutual transformation of common baryon matter and quark-gluon plasmon when temperature is high.Based on the writers' previous achievements in research,sone viewpoints are presented and some conclusions are reached.It is hopeful that the discussion can give an impetus to the research of particle-astrophysics.
    New Differential Test for A Series of Positive Terms and Its Completeness and Nonstandard Analysis
    ZHANG Yi-Fang
    journal6, 2007, 28(5):  50-51. 
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    A new differential test for series of positive terms is proved.Let  ∞k=1 f(k) be a series of positive terms,f(x) is a corresponding positive continuous function,and  d./dx[1/f(x)]=g(x).Then,if f(x)g(x)x≥1+α(α>0),the series converges;if f(x)g(x)x≤1,the series diverges.This test is simple,and can be applied widely.Combining the nonstandard analysis,the completeness of the differential test is discussed.It is also the test of the general series of functions and the infinite integral,whose convergence or divergence may be determined by the differential of the functions.
    Focusing Properties and Negative-Refraction of Photonic Crystal with a Double-Concave Surfaces as PC Boundary
    PENG Jin-Zhang, PENG Jing-Cui, ZHOU Ren-Long
    journal6, 2007, 28(5):  52-55. 
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    The PC is constituted by air holes distributed in a uniform dielectric parallelly.A good-quality focus of a plane wave can appear out of the PC structure,and a strong far field focus is also formed from the PC interface.A negative-refractive beam at the frequency 0.19(2πc/a) for the excited Bloch wave mode near the BZ (Brillouin Zone) edges under all incident angles were obtained by simulation.
     Investigation of Polarization Filter Properties of One-Dimensional Dual Photonic Crystal Nanometer Film in Visible Region
    LIU Li-Li, TANG Bing-Shu
    journal6, 2007, 28(5):  56-59. 
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    This paper applies one-dimensional finite difference time domain method(1D FDTD )to investigate the polarization filter properties of one-dimensional photonic crysta.The calculated results obviously show that polarization of separating is good when the doped layer is in the neutral position;the greater the difference between the doped layer thickness and the periodic layer thickness is,the better the separating effect will be;the greater the difference between the refractive indexes,the more easily the bandgap will be formed;the greater the incidence angle is and the narrower the bandgap is,the better the separating will be.
    Calculation of the Binding Energy  of Ecitons in  Spherical GaAs-Ga1-xAlxAsQuantum Dots by Variational Approach
    ZHOU Xiu-Wen, PENG Xiu-Yan
    journal6, 2007, 28(5):  60-64. 
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    The relation between the exciton binding energy and the spherical quantum dot radius  has been calculated using the variational method.Calculations were performed using both the infinite and finite confining potential well model.The results show that the exciton binding energy decreases as the dot radius increases for infinite confining well model.For the finite confining well model,the binding energy reaches a peak value as the dot radius increases and then decreases to a limiting value corresponding to that in the barrier material.These results are important for the study of the physical properties of exciton in quantum dot.
    Video Monitoring and Controlling Embedded System Based on TMS320VC5402 and S3C4510B
    CHEN Bing-Quan, ZENG Qing-Li
    journal6, 2007, 28(5):  65-69. 
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    The video monitoring and controlling systems are widely applied owing to the intuitionistic,convenient characteristic and the ample information.Using the double kernel structure of ARM+DSP,this system includes two parts approximately:DSP image collecting and processing part and ARM real time controlling and application part.The system chooses S3C4510B and TMS320VC5402 as the primary controlling CMOS chip for these two parts respectively.ARM real time controlling and application part real time controls the DSP image collecting and processing part,constructs hardware structure to support the Linux system and provides some interfaces (such as NIC port,COM and USB,etc) for data transmition and image display.
    Design of Low-Pass Filter Based on R-MOSFET-C
    LIU Xin, LI Fu-Hai, LI He-Ping
    journal6, 2007, 28(5):  70-72. 
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    A fourth-order Butterworth low-pass filter with accurate tunable frequency is designed using CMOS operational amplifier.Utilize the liberalized model behavior of an MOS transistor operating in the triode region instead of a passive resistor.Through tuning the grid-voltage of MOS transistor,we can tune the equivalent resistance,accordingly accurately tuning the cut-off frequency of the filter.The filter’s cut-off frequency is 500 kHz.
    The Design and Implement of Embedded PDA Based on ARM Microprocessor
    ZHU Chang-Cheng, YIN Peng-Fei, TAN Jun, JIANG Jiang
    journal6, 2007, 28(5):  73-75. 
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    The system of PDA which combines the applications includes integrated computing,phone,network and notepad technology based on S3C44B0X (ARM chip) is realized.The key technology,which includes the transplant of uClinux operating system,MiniGUI graphical interface and the design of GPRS port connection.,is resolved by GNU Tools、binutils and so on.
    Biological resources
    Ethnobotany and Medicinal Plant Resources Exploitation in West Hunan
    CHEN Gong-Xi, LU Cheng-Ying, ZHANG Yong-Kang
    journal6, 2007, 28(5):  76-80. 
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    Based on the simple relation of the culture on both western Hunan nature and ethnic medicine,the current situation on the development and use of the medicinal plant resources in western Hunan was generalized and the important role of ethnobotany in the development and use of the plant resources in western Hunan was elaborated.It was considered that the study on ethnobotany could provided directions in theory for the development of medicinal plant resources in west Hunan and could boost west Hunan ethnic medicine famous in the world.
    Shellfish Resources Survey of Mangrove at Zhanjiang Gaoqiao
    XIE EnYi, CAI Ying-Ya, YE Ning
    journal6, 2007, 28(5):  81-86. 
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    After the two basic shellfish survey in the mangrove in 2002 and 2005,the third quantitative and qualitative survey of the shellfish resources of Zhanjiang Gaoqiao mangrove areas was carried out in the same sample point in July 2006.The four sampling stations were Xicun,Dongcun,Hongkan and Changtian in Gaoqiao mangrove.The survey results showed that the shellfish species components in Gaoqiao mangrove included 3 classes,6 subclasses,11 orders,26 families and 60 species belonging to 43 genera.Among those,nine species belonged to Tellinidae;there were five species in the families of Ostreidae and Veneridae respectively;four species in each family of Arcidae,Mytilidae and Nassariidae;there were less than three species in each of the other families.Compared with the two previous survy results,there had been a marked downward trend in shellfish density and biomass.Therefore,it is necessary to take a multi-faceted protection measures,so that the shellfish resources and biodiversity in Zhanjiang mangrove can be in sustainable development and use.
    Isozyme Analysis of Different Tissues in Hemifusus Ternatanus
    LIANG Hai-Ying, CAO Fu-Jun, ZHANG Liang-Zhu, WU Ze-Mei
    journal6, 2007, 28(5):  87-91. 
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    By the vertical polyacrylamide gel gradient electrophoresis,isozymes(SOD,EST,ME,MDH,LDH,GDH,ADH)from seven tissues((the mantle,the muscle,the liver,the heart,the gill,the gonad,the nidamental gland) of Hemifusus ternatanus were studied.The results showed that there were not ADH and GDH isozymes in any of seven tissues.The expression of LDH isozymes had only one band found in the heart,and the band is faint except the liver.The isozymes phenotypes of ME,EST,SOD,MDH had evident difference among certain tissues.
    Development of Alkaloid from Lotuses’ Leaves
    LEI Hong-Song, XIAO Wen-Jun, WEI Yong
    journal6, 2007, 28(5):  92-94. 
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    The writer has stated and summarized not only the chemical components of lotuses leaves’ alkaloid,which has for the health protection function of losing weight and fat,lowering high blood pressure,restraining bacteria,resisting oldness and feebleness and so on,but also the research progress of technology  about extraction of alkaloid and isolation,which provides the reference for the proper development and usage  of  lotuses  leaves’  alkaloid.
    Leaf Anatomy of Scindapsus Aureus Growing Under Illumination Treatment
    GUI Ke-Yin, LI Yan-Lin, TANG Qian-Rui, YIN Heng, CHEN Li, HE Su-Hua
    journal6, 2007, 28(5):  95-98. 
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    By means of study and comparison of leaf area,length,width,upper epidermis tissue,palisade tissue,spongy tissue,lower epidermis tissue and leaf dimension of slices of scindapsus aureus  under different illumination conditions,leaf area fitting formula was found.The results indicated that  illumination treatments had influence on the anatomy structure of leaf area,upper epidermis tissue,palisade tissue,spongy tissue and lower epidermis tissue,but had no significance impacts on the dimension of leaf of Scindapsus aureus.
    Chemistry and chemical engineering
    Extraction of Sapoins and Steroids from Evening Primrose Seed
    XIAO Zhuo-Bing, MA Mei-Hu, CHEN Xiao-Yuan, CHEN Shang
    journal6, 2007, 28(5):  99-102. 
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    Evening primrose seed was used as raw material for extraction of saponins and steroids,95% ethanol was employed as extracting solvent,and optimum extracting conditions were investigated.The extracts were confirmed to be saponins and steroids by IR and ultraviolet spectrum.The results showed that the optimum conditions were as follows:extracting time 8 hours,the weight ratio of seed to solvent was 1∶8,reflux temperature.The extraction ratio of saponins and steroids are 0.405% and 0.313% respectively.
    Separation Conditions of Water-Soluble Small Gold Nanoclusters  by Size Exclusion Chromatography Method
    ZENG Yan-Fei, XU Lai
    journal6, 2007, 28(5):  103-106. 
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    Using pure water as a mobile phase without any additional adjuvant,it was established that stable chromatography conditions separated water-soluble small gold nanoclusters capped by 2-mercaptosuccinic acid (MSA) monolayer in the size range of 1~5 nm by size exclusion chromatography (SEC).It was environment-friendly and easy to operate.The reproducibility was good.
    Manganese Anode Slime Recycled to Produce Chemical Manganese Dioxide with Calcination-Sour Soak-Oxidation
    FU Zhi-Rong, SHEN Yong-Qiang, SHI Ai-Hua, HUANG Yang-Feng, YAN Wen-Bin
    journal6, 2007, 28(5):  107-109. 
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    The manganese anode slime was analyzed,and than a method of caclination-sour soak-oxidation was put forward in which the slime was produced into chemical manganese dioxide.At the time the related influencing factors were studied.By the optimum test,the crude MnO2 was obtained,the tapping density is 1.54 g/cm3,the rate of yield is 84.6%,and its crystal structure is mostly γ-type.If it is densitied,the end product can be used in battery.
    The Anti-Aging Influence of Kiwi Fruit Seed Oil on the of Rats
    ZHANG Yu-Hua, LI Jia-Xing, LIN Han, DU Yu-Kai
    journal6, 2007, 28(5):  110-113. 
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    Object:TO investigate the action mechanism which defer the function of sexual gland decreasing of  Kiwi fruit seed oil by observing the influence of Kiwi fruit seed oil on the ultrastructure of testis of D-gal aging rats.Methods:Eighteen SD rat were randomly divided into three groups.Control group:0.9% salt were filled into stomach and injected into in the subcutaneous tissue on the back.Model group:0.9% salt were filled into stomach and 150 mg.kg-1.d-1 D-gal were injected into subcutaneous tissue on the back.Group interfered by the Kiwi fruit seed oil:0.670 g.kg-1.d-1 Kiwi fruit seed oil were filled into stomach and 150 mg.kg-1.d-1 25% D-gal were injected into subcutaneous tissue on the back.The time for each group was eight weeks.The ultrastructure changes of testis  were observed under transmission electron microscope eight weeks later.Results: By comparing  with the model group,we found that  the Kiwi fruit seed oil  could have improved markedly  retrograde change of interstitial cell,supporting cell and spernatogenous cell.Conclusions:The Kiwi fruit seed oil has the function of defering aging of sexual gland by improving retrograde change of interstitial cell,supporting cell and spernatogenous cell of aging rats.
    Tourism
    Development of Tourism Industrial Clusters on Cooperative Game——Hunan,Hubei,Chongqing and Guizhou Borders as Example
    WANG Zhao-Feng, KUANG Jian-Ling
    journal6, 2007, 28(5):  114-119. 
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    Based on the non-cooperative game model,this paper analyzes the problems in the development of the tourism industry cluster among the borders of Hunan,Hubei,Chongqing and Guizhou,explores the transformation path from non-cooperative game to cooperative game,and finally points out the cooperation measures.The tourism industry clusters within the game should put emphasis on competition and cooperation ideas and group rational so as to gain the overall strength of clusters,to realize the “win-win” for the tourism industry clusters and the tourism enterprises within the borders finally.
    Medical Science
    Count of TAM,MC,MV in Tissues of Primary Hepatocarcinoma and Its Clinical Significance
    XIANG Zhi-Gang, YANG Zhu-Lin, ZHONG Fei
    journal6, 2007, 28(5):  120-124. 
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    Objective  To study the count of TAM,MC and MV in tissues of PHC and detect the relation to the clinicopathological features of PHC,and the relation among the count of TAM,MC and MV.Methods The stains of TAM,MC and MV were completed by the immunohistochemical method of avidin-biotin complex in routine paraffin-embedded sections from 47 cases with PHC.Results  The count means of TAM,MC and MV in the cancer tissues were significantly higher than that in the peri-cancerous tissues (TAM:70.27±17.93/HP vs. 44.15±9.10/HP,P<0.01;MC:15.46±4.54/HP vs. 8.08±2.03 /HP,P<0.01;MV:67.30±13.68/HP vs. 37.20±10.58/HP,P<0.01);except the count of TAM and MV in the patients with AFU (pre-operation)≤10 μg/L  in serum were significantly higher than that whose AFU>10 μg/L (TAM:74.13±18.33/HP vs. 61.15±13.54/HP,P<0.05;MV:70.41±13.03/HP vs. 59.97±12.69/HP,P<0.05);the count of MV in the patients with metastasis (73.50±13.77/HP) was significantly higher than that of non-metastasis (64.10±12.68/HP,P<0.05);there were no correlations among the count of MV,TAM and the other clinicopathological features (including pathological type,differentiated degree,the value of AFP,with or without SHCSP,cirrhosis,cancer emboli,gross shapes,and maximal  diameter of mass,etc).The correlation analysis shows that the count of TAM was significantly correlated with the count of MV (r=0.686,P<0.01),and the count of MC was significantly correlated  with the count of MV (r=0.348,P<0.05).Conclusions  The count of MC,TAM and MV might be closely related to the carcinogenesis and the progress of PHC;the count of MV might  be associated with tumor invasion and metastasis;TAM and MC might be closely related to the tumor angiogenesis.
    Management
    Manganese Anode Slime Recycled to Produce Chemical Manganese Dioxide with Calcination-Sour Soak-Oxidation
    ZHU Hui
    journal6, 2007, 28(5):  125-128. 
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    The manganese anode slime was analyzed,and than a method of caclination-sour soak-oxidation was put forward in which the slime was produced into chemical manganese dioxide.At the time the related influencing factors were studied.By the optimum test,the crude MnO2 was obtained,the tapping density is 1.54 g/cm3,the rate of yield is 84.6%,and its crystal structure is mostly γ-type.If it is densitied,the end product can be used in battery.
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