Journal of Jishou University(Natural Sciences Edition)

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A Conjecture Concerning an Exponential Diophantine Equation

LE Mao-Hua

journal6 2003, 24 (1): 1-4.

Abstract （1935）

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Let m,r be positive integers such that 2｜m，2r　and r＞1.let Ur，Vr　be　integers　ｗith　Vr+Ur-1＝（m+-1）r.Further　let　a，b，c　be　positive　integers　such　that　a＝｜Vr｜，b＝｜Ur｜　and　c＝m2+1.It is proved that　if　b≡3（mod　4），and　b　or　c　is　a　prime，then　the　equation　x2+by＝cz　has　only　the　positive　integer　solution　（x，y，z）＝（a，2，r）.

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Relations of Families of Stieltjes Integrals and Several Holomorphic Function Spaces on Cⁿ

ZHAO Qian, ZHANG Xue-Jun

journal6 2003, 24 (1): 5-8.

Abstract （1806）

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The relations of inclusion are studied between families of Stieltjes integrals and Bloch type space,Besov space,Bergman space on Cn.The following results are obtained:(1)If 0≤q＜p+1-n then βqJp；（2）If p≥0,q＞p+1 then Jpβq；(3)If q＞p≥0 then JpΔq；(4)If p＞0 then ΔpJp；(5)If 0＜p＜n+1 and 0＜q＜(n+1)/p then JpLqa；(6)If n+1＜p＜∞ and max｛0，n+1-(pn)/(n+1)｝＜σ＜1 then L(n+1)/paJp+σ.

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Integrated Information System Based on Grid in Institutions of Higher Learning

HUANG Bin

journal6 2003, 24 (1): 9-13.

Abstract （1636）

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The integrated information system in high schools adopted OGSA can integrate effectively mostly information modules that high schools need,which organizes and manages remote datum by utilizing matadata,ensures users who use a set of uniform interface to complete all operations on client-side machine and to achieve more comprehensive information.It resolve many problems in current office softwares and management softwares of high schools,such as individual independent,close,no capability of mining more high level datum,large cost of operation and maintenance,and so on.

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Species Construction and Distribution of Terrestrial Isopoda in Typical Zones of China

CHEN Guo-Xiao

journal6 2003, 24 (1): 14-19.

Abstract （1888）

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From an investigation and collection of specimens of terrestial isopoda in 20 sampling areas throughout 5 typical zones (i.e.,tropical,subtropical,warm temperate,temperate and high frigid) in China,a total of 11 families,29 genera and 72 species of terrestial isopoda were found.Due to the great zonal differences in the environmental surroundings,there are diversities in species distribution.Tropical and subtropical zones are mostly rich in number of species with a total of 38 and 47 species respectively,making up more than 80% in total.Only 9 species were found in temperate and warm temperate zones.In high frigrid region,due to the average temperature which is below zero degree celsius and which is unfavourable for the existance of terrestial isopoda,only 2 species were found.

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Mutualism Systems of Six Fig Species(Ficus spp.) and Their Fig Wasps in Fujian Pronivce

CHEN Yong, LI Hong-Qing, MA Wei-Liang

journal6 2003, 24 (1): 20-25.

Abstract （3035）

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The fig-pollinator mutualism system is maintained by the reproductive relationships.In the way of dissecting syconia,and using statistics and comparative observation,diversity of pollination system of six species of figs in the northeast of Fujian and their mutual insects are studied.The result shows that flowers of the six figs can be divided into female flower,gall flower,male flower,and bisexual flower.The sex expression of the individuals of each fig species including dioecism and gynodioecy.The female and gall flowers have or have not pedicel (pistil stem) single-layer or double-layer range.The male flowers have distributive forms of dispersively-living,semi-collectively-living and collectively-living.There is difference in size of syconia,the number of flowers,the number of scales and distributing area of their function,and the form of forming outlet holes,which has homologous behavior of fig wasps.Each fig species usually has one kind of pollination insect,and the six fig species and their pollination insects respectively form their own independent pollination systems.It is obvious that such pollination systems have rich diversity.Each mutualism system has different choices of evolution to pollinating biology's character.This reflects the suit of both side of the mutualism evolution and reproductive strategy.Then it safeguards the stability of mutualism system.

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Security Issues for Java-Based Agents

LIU Chuan-Cai

journal6 2003, 24 (1): 26-36.

Abstract （2641）

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With the popularization of computer networks,there has been a shift proposed in distributed system programming from the remote procedure call to the remote programming paradigm,to decrease network traffic and improve performance.Software agents could be used to accomplish this task.The use of agents has several advantages and a few disadvantages,including added security issues.In order to implement autonomous security of Java agent,the author presents a new module system for Java that improves upon many of the deficiencies of the Java package system and gives the programmer more control over dynamic linking.Next,the author develops a general agent model and discusses general security issues in that model.Finally,the author proposes a practical solution that addresses some of those security issues.

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Initial-Value Problem of Nonlinear Fitting

HU Liang

journal6 2003, 24 (1): 37-39.

Abstract （2291）

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Based on the previous studies,the convenient solutions to the initial-value problem of nenlinear fitting can be realized by using a computer with programming or using Matlab,Maple,Mathematica,Matcad,Microsoft Excel and Microsoft Origin,etc.

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Dynamic Analysis on Expectation Price of Disequilibrium in Micro-Market

LEI Yong, YANG Jun

journal6 2003, 24 (1): 40-42.

Abstract （1895）

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As an important variable,expectation price affects the behaviors of consumer and producer in micro-market.Expectation price of producer contains not only the past expectation price and real price but also the past supply and demand.Price changes with the relation of supply and demand.Under certain scopes,the intrinsic adjustment mechanism(invisible hand) may demand price.But price has no longer the stability if it goes beyond the scope and the market ineffectiveness may take place.

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Influence of Lixiviate Rate of Manganese in Rhodochrosite by Adding Addition Agent

YAO Jun, CHEN Shang, XIAO Song-Hua, XIAO Yi, TUO Yong

journal6 2003, 24 (1): 43-45.

Abstract （2213）

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Some organic and inorganic addition agents were tested in order to improve lixiviate rate of Manganese in rhodochrosite.The result showed that there was clear improvement of lixiviate rate of Manganese in normal hours when using organic addition agents such as glucose,sucrose,and so on,with the reaching more than 85%.Thus,they are advisable in eletrolytic manganese industry.Although thick sulfuric acid increases the lixiviate rate,it is not advisable due to its corrosiveness.

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Hadamard-Fischer's Inequality of Sub-M Matrics andInvevse Sub-M Matrices

TUO Qing, XIE Qing-Ming

journal6 2003, 24 (1): 46-49.

Abstract （2399）

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The concepts of sub-Mmatric and inverse sub-Mmatric are introduced to discuss Hadamard-Fischer's Inequality and the improvement of Hadamard's Inequality.

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Optimized Scheme About the Parallel Files Transmitting Based on Petri Net

YUE Xiao-Bo, WANG Lin, CHEN Guo-Ping

journal6 2003, 24 (1): 50-54.

Abstract （2234）

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Petri net is a kind of model fit for describing asynchronous and intercurrent phenomenon.Petri net analytic technique can be applied to static structure,as well as to dynamic structure.It is the most suitable for expressing the parallelism and the relativity between events.In the condition of distributed net,for designing the scheme of parallel files transmitting,the traditional method is adopting linear programming method.This method need to calculate enormous linear equation group.Optimized scheme about the parallel files transmitting based on Petri net can shortcut this process greatly,and can obtain intuitionistic and perfect effect.

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Structure Analyzing and Safe Repairing of Partition Table in Windows Environments

HUANG Guo-Sheng, LIANG Ping-Yuan, ZHOU Xiao-Qing

journal6 2003, 24 (1): 55-59.

Abstract （1796）

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The new features of the master boot record and partition table in Windows environments are described.Firstly,the control structure of the master boot record and the startup process of the system are analyzed;then the chained-list structure of partition table is introduced in detail;and the relevant contents of the FAT32 and the extended INT 13H are presented;lastly,an algorithm of repairing damaged partition table is given.

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Determination of Flavonol Glycosides of Ginkgo Biloba Explants

PENG Xiao-Chun, PENG Qing-Jing, LI Hong-Xiong

journal6 2003, 24 (1): 60-62.

Abstract （1981）

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The contents of total flavonol glycosides and distribution of flavonols in Ginkgo biloba L.explants were determined by HPLC,and the correlative factors were studied.The results showed that，among the four explants,leaves contained the highest concentraction of total flavonol glycosides,amounting to 1.25%.The flavnovols glycosides of explants mainly comprised qercetin.

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Estimation of the Probable Number of Fatalities in Accidental Explosion Occurred in Fixed Installation

GUO Chang-Ming

journal6 2003, 24 (1): 63-67.

Abstract （2186）

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This paper discusses the method for estimating the probable number of fatalities in accidental explosions in fixed installations.It enables the estimation of the maximum probable number of fatalities and the probability of certain range of fatalities.The analysis is based on the accumulated data of amount of explosible material involved in accidents occurred previously and the historical analysis of accidents.The data adopted in the paper are recorded in the MHIDAS (Major Hazard Incident Data Service) database up to January 1999 OSH (Occupational Safety and Health).According to the type of collected data,the number of fatalities derived in accidents is not only due to the overpressure of shock waves,but also due to the missile impact,poisoning and suffocation,etc.The results are useful for the evaluation of the tolerability of certain risks,for performing risk analysis in industrial areas and insurance trade under certain safety regulations.

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Derivatives of Bernstein-Kantorovich Operators and Smoothness

JIANG Hong-Biao

journal6 2003, 24 (1): 68-70.

Abstract （1888）

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Use the r-th classic modulus of smoothness ωr（f，t） to study the relation of the derivatives between Bernstein-Kantorovich operators and the smoothness of the function it approximates,and obtain the equivalent theorem between the derivatives of Bernstein-Kantorovich operators and the r-th classic modulus of smoot
hness ωr（f，t）.

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Noise Filter of Digital Monitor Images Based on Wavelet Transformation

ZHANG Qing-Liang

journal6 2003, 24 (1): 71-73.

Abstract （1789）

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Due to its capacities of multiresolution and time-frequency location,wavelet analysis has great superiorities in digital image processing.This paper aims at achieving an effect by designing a simple but practical digital monitor images for noise filter on the basis of wavelet transformation.

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Distribution and Cooperation Environment of Software Development

WU Heng, ZHANG Wei-Min, WANG Jing

journal6 2003, 24 (1): 74-76.

Abstract （2388）

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Distribution and cooperation environment is an environment of exploiture and test of the software that users and developers can share together to empolder synergically.It is make up of client software,CVS software,WEB server software,test environment software and assistant software.PrepIFS is a successful distribution and cooperation environment.

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PE Structure Under the 32-Bit Windows System and Its Application

HE Ying-Sheng, DUAN Ming-Xiu

journal6 2003, 24 (1): 77-79.

Abstract （2126）

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PE Structure is a file-structure of executable of file under the Win32’s system,this structure is made up of 5 parts,Dos ‘MZ’ Header,Dos Stub,PE Header,Section Table & Section.All the parts form a unit,communication with each other by the pointer.By the pointer,we can analyse & operate the resources used and the innards of any executable file.

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Relationship Between F1 Hybrids Fertilities and Pollen Fertilities

HU Yi-Hong, JIANG Xiao-Cheng, XIAO Hui-Hai, HU Song-Ping

journal6 2003, 24 (1): 80-82.

Abstract （1900）

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Wide compatibility rice varieties(WCVs) LH422 and 02428,Indica and Japonica rice varieties were used in this test with cross-combination types.The seedset values of F1 hybrids were determined,and the pollen activities of the parent lines and F1 hybrids were also inspected with microscope.The results showed that the pollen fertilities of the parent lines reached a competitive higher level except those of Ce49,but the pollen fertilities of F1 hybrids varied according to their parent lines.The pollen fertilities of F1 hybrids which were cross-combined by WCVs and Indica or Japonica rice varieties were the highest among all the combinations.The correlation coefficience of the pollen sterilities and the unfilled grain rate reached 0.838 0.

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Solubility and Liquid-Liquid Phase Balance of Isopropyl Alcohol-Ammonium Sulfate-Water Ternary

DONG Jun-Fang, LIN Jin-Qing, HUANG Xiao-Dong

journal6 2003, 24 (1): 83-85.

Abstract （2814）

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The isothermal solubility of (CH3)2CHOH-(NH4)2SO4-H2O ternary at 30 ℃ was determined with “cloud point”.The liquid-liquid phase balance data were determined and the phase diagram was constructed.An equation of isothermal solubility simulates those data,which of correlation coefficient was above 0.999.

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Q-Closed Spaces

SU Fa-Hui

journal6 2003, 24 (1): 86-87.

Abstract （1974）

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In this article,using q-open sets q-covers,the author has introduced the new concept of Q-closed spaces.Topological space X is called Q-closed spaces,if for each q-cover ｛Vα｜α∈I｝ of X,there exists set ｛Vαi｜i=1,2,…,n｝，such that V-α1∪V-α2∪…∪V-αn=X.

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Application of WPS Office in Graphical Plot and the Synchisis of Pictures and Articles in the Editting of Academic Journals

XIANG Yang-Jie, YI Bi-Wu

journal6 2003, 24 (1): 88-90.

Abstract （2088）

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WPS Office is a software which provides a tool to deal with vector graphs for users.By customizing the frames for graphs,plotting the coordinate axes,drawing curves,transplanting characters and symbols,and assembling graphic objects,users can make variety of vector graphs needed in the edition of scientific and technological books and journals.Through image-reading the printouts of the graphic prospectus,the users can achieve a simple layout of pictures and articles in the system of academic journal edition.

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Design and Implementation of Network Billing System Based on Authentication of Users

YANG Lin, DAI Jun, XIAO Zhi-Xin

journal6 2003, 24 (1): 91-93.

Abstract （2120）

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Based on the network facts of Jishou university and combined with the present application of network,this paper discusses the exploitation of network billing system fitting in with Jishou university and introduces the system’s design ideology,design principle as well as its structure.

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Interlocking Intranmedullary Nail in the Treament of theComplex Femoral Fracture

LI Fei-Wen, CHEN Li-Qi, ZHAO Jun

journal6 2003, 24 (1): 94-96.

Abstract （2018）

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To analyze and evaluate the efficacy of interlocking intranmedullary in the treatment of 26 patients of the complex femoral fractures.Patients were followed-up for an average of 11.4 months (ranged 1 to 26 months).The time for fracture union averaged 16 weeks in fresh fracture and 23 weeks in old.The excellent and good results rated 88.5%.It shows that interlocking intranmedullary nail can treat in many kinds of femoral fractures,such as the complex comminuted,fragmental fractures and old fractures after fixator failure.

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The Number of Solutions of Simultaneous Pell Equations

LE Mao-Hua

journal6 2003, 24 (2): 1-9.

Abstract （2113）

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Let a,b　be distinct positive integers.If max (a,b)＞ 10118,then the simultaneous Pell equations x2-ay2=1 and z2-by2=1 have at most two positive integer solutions (x,y,z).

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Existence of Positive Solutions for Some Nonlinear Third-Order Two-Point Boundary Value Problems

YAO Qing-Liu

journal6 2003, 24 (2): 10-14.

Abstract （2294）

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The existence of positive solution to some two-point boundary value problems are considered for third-order nonlinear ordinary differential equation.This class of boundary value problems arises from the investigation for flow of sticky liquid and possesses wide application in liquid mechanics.In recent years,Professor Jiang Daqing has obtained the existence of positive solution under the condition where nonlinear term is superlinear or sublinear.By improving the method used by Jiang,the author give two existence theorems of the class of problems under the condition where the nonlinear term is neither superlinear nor sublinear.The processes are as follows: (1) By applying the Green functions of corresponding boundary value problems the problems are transformed to integral equations on the space of continuous functions; (2) By applying the properties of Green functions the suitable cones are chosen; (3) By making use of Krasnoselskii fixed point theorem of cone expansion-compression type,two existence theorems of positive solution are obtained.This paper implies that Jiang’s main conclusions are the special cases of our results.

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The Attractors and Fractal Images in the Complex Iterated Function System With Variable Parameter

HUANG Xian-Tong, LIU Jian-Sheng, FU Hui

journal6 2003, 24 (2): 15-19.

Abstract （2353）

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The attactors and fractal in the complex iterated function system with variable parameter were studied,and the dynamic behavior of this system was supposed.The fractal image of two-dementional n-time iterated projection was obtained by using the escape time algorithm of computer visuelization technique.The supposition was supported by the results of computer graphic experiment.

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Feather-like Crystals of N-Alkyl Chitosan

DONG Yan-Ming, ZHAO Ya-Qing, WANG Hui-Wu, RUAN Yong-Hong

journal6 2003, 24 (2): 20-22.

Abstract （2185）

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The N-methyl chitosan or N-ethyl chitosan was cast into films at high vacuum.Then the cast film crystallized at 25 ℃ and 65% relative humidity and the feather-like crystals appeared.The feather-like crystals were different with spherulites,which grew in the films cast at low vacuum.In addition to morphology,the birefrigence nature of feather-like crystals and spherulites was completely different.The former was negative,but the latter was positive.The feather-like crystals were believed to belong to one kind of dendritic crystals.

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(∈，∈∨ｑ)-Fuzzy Normalizer and (∈，∈∨ｑ)-Fuzzy Quotient Subgroup

YAO Bing-Xue

journal6 2003, 24 (2): 23-25.

Abstract （2334）

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Based on the concept of (∈，∈∨ｑ)-fuzzy subgroup introduced by S.K.Bhakat in 1992,the notions of (∈，∈∨ｑ)- fuzzy normalizer and (∈，∈∨ｑ)-fuzzy centralizer are introduced.Some properties of (∈，∈∨ｑ)-fuzzy normalizer and (∈，∈∨ｑ)- fuzzy centralizer are discussed.Then,the definition of(∈，∈∨ｑ)- fuzzy quotient group and (∈，∈∨ｑ)-fuzzy quotient subgroup is given.At last,the isomorphism theorem for (∈，∈∨ｑ)-fuzzy quotient group is established.The main results include:(1)if is a fuzzy subset of,then the (∈，∈∨ｑ)-fuzzy normalizer of is a subgroup of;(2)if is a fuzzy subgroup of,then the (∈，∈∨ｑ)-fuzzy centralizer of is a subgroup of and a normal subgroup of;(3)if and are (∈，∈∨ｑ)-fuzzy normal subgroup and (∈，∈∨ｑ)-fuzzy subgroup of,respectively,then is a (∈，∈∨ｑ)-fuzzy subgroup of.

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The Calculatin of Nucleon-Nucleon Interaction Potential

WU Xiang-Yao, WANG Xin-Lin, Yin-Xin-Guo, ZHU Xiao-Mei

journal6 2003, 24 (2): 26-30.

Abstract （2410）

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The equation of relative motion between two nuclei,i.e. resonance group equation,is derived from the p-s equation of six quarks system.And by resonance group method and integral transformation,the analytic representation of quark-gluon exchang potential was got.By further considering the short range part of the contribution of quark-gluon exchange potential and the intermediate-long range part of the effects of one-pion and two-pion exchange to nuclear force,the analytic representation of N-N effective potential was given,thus the nature of the nuclear force is studied all-sidedly.

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Preliminary Study on Common Antigen of Tyrophagus Putrescentiae and Dermatophagoides Farine

LI Chao-Pin, CUI Yu-Bao, YANG Qing-Gui, HE Ji

journal6 2003, 24 (2): 31-34.

Abstract （2445）

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Objective To investigate whether there is common antigen between Tyrophagus putrescentiae (TP) and Dermatophagoides farine (DF) or not.Methods The correlation of ELISA optic densities between TP and DF-specific IgE in atopic sera was analyzed,and TP and DF extracts were analyzed with SDS-PAGE.IgE immunoblotting and IgE inhibition immunoblotting to TP and DF extracts with atopic sera were performed also.Results The ELISA optic densities of TP and DF-specific IgE in 42 atopic sera were correlated with each other (r=0.641 5，P＜0.01).By SDS-PAGE,the protein components of the TP and DF extracts were numerous protein bands between 10 kD and 110 kD.In addition,the presence of a cross-reactive IgE binding component in the TP and DF major allergens was investigated by IgE inhibition immunoblotting experiments.Conclusion There is common antigen between Tyrophagus putrescentiae and Dermatophagoides farine.

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On Fixed Point Theorems in Generating Spaces of Quasi-metric Family

XIAO Jian-Zhong, ZHU Xing-Hua

journal6 2003, 24 (2): 35-38.

Abstract （1861）

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The concept of a generalized local power contractive mapping is introduced in generating spaces of quasi-metric family.The boundedness of mapping orbit and the convergence of iterative sequence are discussed.By means of these properties,some fixed point theorems for generalized local power contractive mapping are established in generating spaces of quasi-metric family.These results not only unify and extend the corresponding results of usual metric spaces and Menger probabilistic metric spaces,but also contain the fixed point theorems for contraction type mappings in Kaleva-Seikkala fuzzy metric spaces as their special cases.

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The Discussion of Some Solutions of the Equation a·(t-τ)＋bｘ·(t)＋cｘ(t-τ)＋dｘ（t）＝tｋ

WU Kuo-Hua, FAN Li-Jun

journal6 2003, 24 (2): 39-42.

Abstract （1879）

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By using the method of undetermined coefficients,the author discusses some solutions of the equation ａｘ·（ｔ－τ）＋ｂｘ·（ｔ）＋ｃｘ（ｔ－τ）＋ｄｘ（ｔ）＝ｔｋ.The expressions of the solutions are obtained in the following four special cases:(1)c+d≠0;(2)c+d=0,a+b-cτ≠0;(3)c+d=0,a+b-cτ=0,cτ-2a≠0;(4)c+d=0,a+b-cτ=0,cτ-2a=0.

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On the 2k-th Power Mean of the Inversion of DirichletL-Function With the Weight of Gauss Sums

GAO Li, ZHAO Zhen

journal6 2003, 24 (2): 43-46.

Abstract （1706）

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This paper uses estimation of the trigonomitric sums and character sums and the analytic method to study the 2k-th power mean of the inversion of Dirichlet L-functions with the weight of Gauss sums.It is proved that when integer q≥2,real number Q＞1,for the arbitrary positive integers k and m,and (m,ｑ≤Ｑｑ)＝１，the power mean value formula is given as:ｑ≤Ｑ(Ａｋ（ｑ）)/(φ２（ｑ）)ｘｍｏｄ　ｑ(｜Ｇ（ｍ，ｑ）｜２)/(｜Ｌ（１，ｘ）｜２ｋ)＝（１５/π２）ｋＱ＋Ｏ（Ｑ1/2＋ε）．

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Simultaneous Approximation by a New Class of Operators

WANG Li, XUE Yin-Chuan

journal6 2003, 24 (2): 47-51.

Abstract （1752）

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A new class of positive linear operators is introduced,and the simultaneous approximation of unbounded functions is studied.Let ｆ∈Ｃβ[０，∞），ｒ∈Ｎ，derivative of ordern n exists in ｆ（ｘ） in [０，∞）,then ｌｉｍｎ∞Ｍ（ｒ）ｎ，α（ｆ（ｔ），ｘ）＝ｆ（ｒ）（ｘ），if ｆ（ｒ）（ｘ）∈Ｃ（ａ－η，ｂ＋η）（η＞０），then Ｍ（ｒ）ｎ，α（ｆ，ｘ）ｆ（ｒ）（ｘ） is applicable when ｘ∈[ａ，ｂ].If ｆ∈Ｃβ[０，∞），ｆ（ｘ） has derivative of order ｒ＋２ in [０，∞），then ｌｉｍｎ∞ｎ[Ｍ（ｒ）ｎ，α（ｆ，ｘ）－ｆ（ｒ）（ｘ）]＝α[ｒ（ｒ＋１）ｆ（ｒ）（ｘ）＋（２（ｒ＋１）ｘ＋ｒ）ｆ（ｒ＋１）（ｘ）＋ｘ（１＋ｘ）ｆ（ｒ＋２）（ｘ）],if ｆ（ｒ＋２）（ｘ）∈Ｃａ－η，ｂ＋η）（η＞０），then the above equation is valid in [ａ，ｂ].

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Existence of Positive Periodic Solutions of Discrete Predator-Prey System With Infinite Delays

JIANG Li-Qun, MO Hong-Min

journal6 2003, 24 (2): 52-56.

Abstract （1896）

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The differential model of periodic Predator-Prey with three species is studied.The existence of positive periodic solution of this system with infinite delays is discussed by using the topologic theory.It is proved that the ample conditions for the existence of positive periodic solution of this system are as follows:(ⅰ)r-1a-32-r-3a-12ｅｘｐ（2r-2ω）＞0；（ⅱ）r-1a-32-r-3a-12ｅｘｐ（2r-2ω）-r-2a-11a-32ｅｘｐ（2r-1ω）＜0；（ⅲ）-a-32a-12r-1＋a-32a-11r-2＋a-21a-12r-3＜0．

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The Discussion of the Indecomposable Direct Summand of the Induced Module From θ[H]-Module

YANG Yu-Ying, HE Jiang-Chun

journal6 2003, 24 (2): 57-59.

Abstract （1747）

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For absolutely indecomposable module N,T=G is the inertial group of N,G/H is the circulant group,｜G/H｜=n.F is an arbitrary domain,and f0 is a unit of F,if a∈F,and f0=an,the number of N↑G indecomposable direct summand equals the number of F[G/H] indecomposable direct summand.

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Application of Electric Potential Analysis in Mensuration of Reactivity Ratios in System of VAC/DMC Copolymerization

WANG Jin-Gang, JIE Zhu-Bai, JIANG Run-Tian, ZHANG Shu-Xiang

journal6 2003, 24 (2): 60-62.

Abstract （3074）

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By Cl--selective electrode,when the electropotential moves with the concentration of Cl-,proportion of PDMC in copolymerization of VAC/DMC(vinylacetic acid and methacyloyloxyethyl trimethylammonium chloride) can be determined.By this,Reactivity Ratios of VAC and DMC can be calculated as:rVAC=0.48±0.12，rDMC=3.12±0.33.This method is compared with element analysis,too.

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The Two New Species of Sinocyclocheilus From Yunnan,China

LI Wei-Xian, MAO Wei-Ning, LU Zong-Min, YAN Wei-Zhu

journal6 2003, 24 (2): 63-65.

Abstract （2801）

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Sinocyclocheilus wumengshanensis Li Mao et Lu.sp.nov(fig.1),holotype No.9108302,standard body length 128 mm,collected from Sanqisanluo longtan (25°30′N，103°40′E) Xundian County Yunnan on Aug.30 1991.Paratype 20 specimens No.91083030～31,91083033～34,92074014,980711001～015,collected from sanqisanluo Xundian,Deze Zhanyi and Xize Xuanwei Yunnan.D.ⅲ，7；A.ⅱ,5;P.ⅰ,16;V.ⅰ,8;C,16,Gill-rakers 5～6;L·S.67(38～42)/(22～24-v)76；pharyngeal teeth 3 row 2,3,4/4,3,2.Body depth in standard length 3.20～3.5 d 3.40,head length 3.40～4.00(3.80),length caudal peduncle 4.50～4.90(4.70),depth caudal peduncle 8.40～9.40(9.00).Snout in head 2.50～3.00(2.80) eye 3.8～7.2(5.0),interorbital 2.50～3.00(2.80).Depth of caudal peduncle 1.90～2.00(1.90) in its length.The new species is similar to S.multipunctatul (pellegrin)(1931),but differs from the latter in:(1)Barbels much longth extending from the corner of the munth to end gill opening.(2)Subunder of mouth.(3)Strong and hard last unbrached dorsal ray.(4)Distance heredity of molecule 12.6%～13.4%.Sinocyclocheilus guishanensis Li Sp.nov (fig.2),holotype No.20000929001,standard body length 106 mm,collected from Fenglongtan Guishan (24°40′N,105°45′E) Shilin County Yunnan,Spet. 29,2000.Paratype 5 specimens No.980514005～09,standard body length 68～102 mm,collected from the same locality as the holotype.D,ⅲ,7;A,ⅱ,5;P,ⅰ,13～16;V,ⅰ,8;C,ⅰ-15～16-ⅰ.Gill-rakers 5～6,lateral lin scales 73～80.Pharyngeal teeth 3 rows 2.3.4/4.3.3.Body depth in standard length 3.71～4.31(3.99),head length 3.71～4.05(3.90),length of caudal peduncle 4.25～5.43(4.66).Depth of caudal peduncle 7.80～9.64(8.56).Snout in head 2.71～3.11(2.94),eye 4.25～5.60(4.81),interorbital 3.00～3.60(3.38).Depth of caudal Peduncle 1.56～2.00(1.83).The new species distinguished from S.angustiporus Zheng et Xie(1985) by the followings given:(1)Regular of body scales.(2)Barbels much longer.(3)Distance heredity of molecule 4.4%.The type specimens are kept in Reservoir Heilongtan Shilin and Qujing Fishery Administration,Yunnan.

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Source of Drug and Its Spatial Diffusion in China

SUN Feng-Hua, LIU Ji-Sheng, LI Shi-Tai

journal6 2003, 24 (2): 66-70.

Abstract （3400）

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This paper sets forth the intension of drug with the viewpoints of underground economics and economic geography.It points out that unlawful production and trade of drug in China not only affects the development of personal economy,but also damages public law and order.It also points out that there are two kinds of drug production base:domestic and abroad,and the latter is the major base for China.Both historical root and present driving force are the causes of the spatial diffusion of drug in China.The social problems and hideous phenomena arise from drug diffusion make the situation of banning drug very serious.How to cut off the source of drug and control the spatial diffusion of drug is a significant strategic problem for Chinese government.

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