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Journal of Jishou University(Natural Sciences Edition) 2009 Vol.30 Please wait a minute... For Selected: Download Citations EndNote Ris BibTeX Toggle Thumbnails Select Stability Versions of  Veljian-Korchmaros Inequality of an n-Simplex and Applications ZHANG Yao journal6    2009, 30 (1): 1-3.   Abstract （2620）      PDF（pc） （1272KB）（1514）       Knowledge map    Save The author gives the stability versions of Veljian-Korchmaros inequality of an n-simplex.In application,the author also gives the stability versions of the inequalities concerning the volume,circumradius and median of an n-simplex. Reference | Related Articles | Metrics | Comments（0） Select Calculation Methods of Diagonally Dominant Matrix in-Situ Replacement HEI Zhi-Jian, HEI Long, YANG Xiu-Jie journal6    2009, 30 (1): 4-8.   Abstract （2312）      PDF（pc） （1566KB）（1466）       Knowledge map    Save The calculation methods of diagonally dominant matrix in-situ replacement are researched，including the matrix determinant，the matrix equation unknown and the matrix inversion computation.Make use of the principle of matrix triangular decomposition and matrix operations fundamental to derive the calculation formula for matrix elements of simplification value，thus it further derives using of matrix elements of simplification value to compute the in-situ replacement solution formula of calculation of matrix determinant，matrix equation unknown and inverse matrix array elements.Calculation of the formula used in pure form of presentation is conducive to programming calculation，and it can realize the in-situ replacement solution according to the place of matrix elements in the matrix.The calculation space and time of this method can be saved,and the efficiency of scientific computation is improved. Reference | Related Articles | Metrics | Comments（0） Select Existence of Almost Periodic Type Solutions for Some Nonlinear Delay Integral Equations YAO Hui-Li journal6    2009, 30 (1): 9-12.   Abstract （2397）      PDF（pc） （2077KB）（1418）       Knowledge map    Save The author discusses the existence of almost periodic type solutions for some nonlinear delay integral equations by using fixed points theory on Hilbert projective metric. Reference | Related Articles | Metrics | Comments（0） Select A Normality Criterion of Meromorphic Functions WANG You-Ming, TENG Jing journal6    2009, 30 (1): 13-16.   Abstract （2271）      PDF（pc） （1640KB）（1620）       Knowledge map    Save Let F  be a family of meromorphic functions in a      domain DC,all of whose zeros are of multiplicity at least k.Let k be a positive integer,and let a,b and c be three finite complex numbers such that a≠b,a≠c and h1,h2,h3 be three positive numbers.If f(z)=a |f(k)(z)|≤h1,f(z)=b  |f(k)(z)|≤h2,f(k)(z) =c|f(z)|≥h3 for every f∈F,and all f’s zeros are of multiplicity at least k,then F  is normal in D. Reference | Related Articles | Metrics | Comments（0） Select Morphic Rings,PS-Rings,FS-Rings and Morita Context Rings WANG De-Zhan, WANG Yao journal6    2009, 30 (1): 17-19.   Abstract （2371）      PDF（pc） （881KB）（1805）       Knowledge map    Save The authors discuss the favorable properties of morphic rings in reduced condition,and its relationship with other classes of rings as well. Reference | Related Articles | Metrics | Comments（0） Select Almost Periodic Solutions for a Class of  Nonlinear Dynamical Systems LUO Hong-Ying, LIU Jun, LV Xian journal6    2009, 30 (1): 20-22.   Abstract （2236）      PDF（pc） （1452KB）（1491）       Knowledge map    Save In this paper,the almost periodic solutions for a class of four order nonlinear  dynamical systems are studied by using the Leray-Schauder fixed point theorem and the method of Liapunov function.The sufficient conditions which guarantee the existence of the almost periodic  solutions are obtained. Reference | Related Articles | Metrics | Comments（0） Select Variable-Parametric Discrete Li-Yorke Chaotic Systems and the Existence of Asymptotic Periodic Point ZHU Xi, HUA Xiu-Juan journal6    2009, 30 (1): 23-26.   Abstract （2303）      PDF（pc） （1680KB）（1801）       Knowledge map    Save It is proved that variable-parametric discrete Devaney chaotic systems is also chaotic in the sense of Li-Yorke,and several new variable-parametric chaotic systems are introduced.After that the authors study  the existence of its asymptotic periodic point.These results futher extend the scope of the research on discrete chaotic systems. Reference | Related Articles | Metrics | Comments（0） Select Oscillation of Second Order Emden-Fowler Neutral Delay Differential Equations LI Tong-Xing, HAN Zhen-Lai, SUN Shu-Rong journal6    2009, 30 (1): 27-29.   Abstract （2269）      PDF（pc） （1769KB）（1616）       Knowledge map    Save By generalized Riccati transformation and inequality technique，the oscillation of second order Emden-Fowler neutral delay differential equations is considered，and some new interval oscillation criteria are established. Reference | Related Articles | Metrics | Comments（0） Select Inverse Problem for Generalized Toeplitz Matrices over Quaternion Field YUAN Shi-Fang journal6    2009, 30 (1): 30-32.   Abstract （2168）      PDF（pc） （1095KB）（1512）       Knowledge map    Save Inverse problems for generalized Toeplitz matrices over quaternion field are considered.The necessary and sufficient conditions for existing solutions and the solution expressions are derived. Reference | Related Articles | Metrics | Comments（0） Select Two Notes on Positiveness Judgement of Matrix in Linear Complementarity Problem YONG Long-Quan, DENG Fang-An journal6    2009, 30 (1): 33-35.   Abstract （2418）      PDF（pc） （549KB）（2008）       Knowledge map    Save The authors study two methods to judg positive definite matrix in linear complementarity problem,and  obtain some conditions to ensure positiveress of matrixes.Meanwhile,it is indicated that some existent conditions of the solution to linear complementary problem in literature [4] are only sufficient but not necessary conditions. Reference | Related Articles | Metrics | Comments（0） Select Generalized Ordering Statistics Bidding Model SONG Chao-He journal6    2009, 30 (1): 36-38.   Abstract （2071）      PDF（pc） （859KB）（1615）       Knowledge map    Save In the seller bidding of ordering statistics bidding function,define the expected deviation of the last non-winner’s price and the winner’s price as the bidding enterprise income,and  it is a decrease function on the number of bidder.Based on this result  supposing that the bidding function is a continuous cave function and the probably density function of the bidding price is decreasing function,the author studies the relations between last non-winner’s price and the winner’s price in generalized ordering statistics and gets a result that the expected deviation of the last non-winner’s price and the winner’s price decrease with the increase of the number of bidder in generalized ordering statistics.This study expands the conclusion from ordering statistics to generalized ordering statistics and provides the methods and theories for the research of bidding model. Reference | Related Articles | Metrics | Comments（0） Select Overloaded Model of Concurrent Inquiry System Based on Queuing Theory XIAO Wei, TAN Chang-Sheng journal6    2009, 30 (1): 39-42.   Abstract （2224）      PDF（pc） （609KB）（1796）       Knowledge map    Save Based on queuing system and according to concurrency characteristics of comprehensive inquiry system when adopting database server,multi-server hybrid M/M/S/C queuing model was set up.Taking EMS memory limits of the server into account,optimal model was established under constraint of probability no more than metric.To conclude,the authors evaluate the simulation results after simulation is processed to this system. Reference | Related Articles | Metrics | Comments（0） Select Method and Strategy to Backup ORACLE Database ZHANG Zi-Hui journal6    2009, 30 (1): 43-45.   Abstract （3469）      PDF（pc） （273KB）（1763）       Knowledge map    Save As database security is an important safeguard for normal operation of management system,database backup becomes a necessary component in any computer information system.This paper introduces the method and strategy to backup ORACLE database in order that recovering efficiency can be increased,while the recovering time and cost can be reduced. Reference | Related Articles | Metrics | Comments（0） Select On Gravitational Wave Being Nonlinear Wave ZHANG Yi-Fang journal6    2009, 30 (1): 46-50.   Abstract （2493）      PDF（pc） （2012KB）（2045）       Knowledge map    Save The gravitational wave based on the nonlinear equations of the gravitational field should usually be nonlinear wave,and possesses some different characteristics with the electromagnetic wave.For this some solutions of the equations are discussed quantitatively.The nonlinearity of the gravitational wave originates from a nonlinear essence of the gravitational field. Reference | Related Articles | Metrics | Comments（0） Select Some Problems Beyond the Standard Model of the Elementary Particle XU Di-Yu, JIAO Shan-Qing, GONG Zi-Zheng, WANG Chang-Jiang journal6    2009, 30 (1): 51-55.   Abstract （2916）      PDF（pc） （2026KB）（1653）       Knowledge map    Save Some prime principles of the standard model of the elementary particle which have been supported over a long period of time have incurred censure recently from experimental facts,for example,EMC effect found by EMC  group,the conversion process of flavor-changing neutral currents of a quark discovered by CLEO team,indications that a quark has structure by CDF group and  〖AKl-〗-q resonance by machines HI and ZEUS of HERA which may mean deeper and further physics there,a neutrino having mass,mixedness and oscillation pointed out by Kamioka Collaboration experiment,quark-gluon structure of a photon discoverd,a lepton having anomalous magnetic moment,and so on.All those deviate from the standard model,so it is necessary to reexamine the standard model of particle. Reference | Related Articles | Metrics | Comments（0） Select Token Ring-Shaped Net of Quantum Teleportation byUsing Three-Particle GHZ States ZHOU Xiao-Qing, WU Yun-Wen journal6    2009, 30 (1): 56-62.   Abstract （3286）      PDF（pc） （2054KB）（1494）       Knowledge map    Save The authors investigate physical principium for building the quantum teleportation net by using three-particle GHZ states，find out unitary transformation matrix for quantum teleportation of three-particle GHZ states,and  design a token ring-shaped quantum teleportation net.The authors propose a scheme for  quantum communications net and its protocol.If all stations work as the scheme,quantum communications between any two stations may be realized.All station and manage expense can be monitored by using monitor station. Reference | Related Articles | Metrics | Comments（0） Select Current Situation and Development Direction of Digital Image Processing Technology CHEN Bing-Quan, LIU Hong-Li, MENG Fan-Bin journal6    2009, 30 (1): 63-70.   Abstract （16147）      PDF（pc） （832KB）（6780）       Knowledge map    Save The major properties of digital image processing technology are reviewed,including the production and development of image collection and digitalization,image compression,image enhancement and reconstruction,image segmentation and image analysis.Based on the latest development in this field,the highlights in the development of those aspects are introduced.Thus,the challenge and development divection of digital image processing technology are summarized. Reference | Related Articles | Metrics | Comments（0） Select Design and Simulation of Fuzzy-Controller Based on pH Neutralization Process ZENG Zhi-Gang journal6    2009, 30 (1): 71-73.   Abstract （2742）      PDF（pc） （429KB）（1718）       Knowledge map    Save In neutralization process,pH neutralization might be very difficult to control due to its highly nonlinear nature.A fuzzy-Controller can be used for controlling a broad range of uncertain systems in the presence of strong disturbances,and still exhibits excellent adaptability and robustness.The paper address the problem of the utilization of a fuzzy-controller for the abstract nonlinear process mentioned above.Simulation studies for pH neutralization substantiate that the fuzzy controller can provide much better set-point tracking and disturbance rejection than traditional controllers. Reference | Related Articles | Metrics | Comments（0） Select Improvement of the Experimentation of Measuring Surface Tension  Coefficient of Liquid  Based on Π Type Tinsel WU Li-Hua journal6    2009, 30 (1): 74-75.   Abstract （2873）      PDF（pc） （659KB）（2015）       Knowledge map    Save The experimentation of measuring surface tension coefficient of liquid usually makes use of metal ring.But,as it is difficult to adjust the level of ferrule and the ferrule side can not contact with liquid,great experimental errors may result in while,with Π type tinsel,the accuracy can be improved. Reference | Related Articles | Metrics | Comments（0） Select Improvement of Experimental Methods for Holography Technology WANG Peng-Peng, LI Xiao-Juan, YE Fu-Qiu journal6    2009, 30 (1): 76-78.   Abstract （3376）      PDF（pc） （683KB）（2142）       Knowledge map    Save Experiment of laser holography has high requirements for environment and conditions.After analysing and exploring the factors which influence laser holography,the author points out the reasous for the low success rate of carrying out the holography experiments on high floors and puts forward solutions accordingly.This study is of value for physics experiment teaching in unversities and for practical application. Reference | Related Articles | Metrics | Comments（0） Select Establishment of GC to Detect Trehalose in Aloe ZHAO Hua, HE Cong-Fen, QIN Yun-Rong, LIU Lei, ZHONG Qin journal6    2009, 30 (1): 79-83.   Abstract （2904）      PDF（pc） （1447KB）（1698）       Knowledge map    Save To determine the content of trehalose in transgenic Aloe by gas chromatography (GC),1-Methyl-imidazol,Hydroxylammonium chloride and Acetic anhydride were used to derivative the trehalose.The difference of the retention time among the same carbohydrate derivatives is 3s by this method.And it can separate the glucose,milk sugar,sucrose and trehalose clearly.The results showed a good linear relationship within a range from 3.697×10-9　g to 28.661×10-9　g,and the liner correlation coefficient of the trehalose is 0.998　6.The content of trehalose in the three-year,five-year aloe (Aloe vera.L) and aloe transformed by ostA were determined by GC.The results show that the trehalose of the fiveyear aloe (Aloe vera.L) is 1.59 times as great as the three-year.The content of trehalose in five-year aloe is 1.103×10-5　g per 10g,and 6.905×10-6　g per 10g in three-year aloe.The content of trehalose is 1.614×10-5　g per 10g in aloe transformed by ostA which is 2.33 times as great as the three-year aloe (Aloe vera.L).The results prove that the ostA gene from E.coli is successfully transformed to aloe and expressed. Reference | Related Articles | Metrics | Comments（0） Select Topological Study of the Biodegradability of  Substituted Phenols and Benzoic Acids YAN Wei-Juan, ZHENG Ping, HONG Fan, FENG Chang-Jun journal6    2009, 30 (1): 84-88.   Abstract （2453）      PDF（pc） （604KB）（1505）       Knowledge map    Save The electrotopological state index (Ei),transformed electrotopological state index (EEi) and molecular electronegativity-distance vector (MEDV)  (Mk) were used to describe the molecular structures of 30 substituted phenols and benzoic acids  compounds in this paper,in which EEi= Ei+0.5Qj,Qj = 3x-1.5y,x being the number of -OH,y being the number of -COOH in molecule j.A quantitative linear relationship between biochemical oxygen demand of 30 substituted phenols and benzoic acids compounds and 3-variable model （EE43，E28，M28） was set up using a stepwise linear regression (SLR).The QSBR model is obtained as follows:BOD% = 66.121-3.594EE43+57.028E28-15.049M28,R =0.900.Using leave-one-out (LOO) of Jackknifed method,the model possessed better predictability and robustness.The calculated values were in good agreement with experimental data The equation has shed light on the essencial factors influencing the biodegradability of substituted phenols and benzoic acids compounds. Reference | Related Articles | Metrics | Comments（0） Select Effects of Aloes Extract on Anti-Oxidation Performance of Oil-in Water Emulsion LUO Shi-Lan, OUYang-Yu-Zhu , TANG Sai-Yan, TANG Hong-Yu journal6    2009, 30 (1): 89-92.   Abstract （2700）      PDF（pc） （185KB）（1622）       Knowledge map    Save Adding aloes extracts in oil-in water emulsion,influences of aloes extracts dosage,temperature and ultraviolet light on peroxide value of emulsion cosmetics and hydroxyl free radical scavenging capacity were investigated.The results showed that the peroxide value of emulsion with addition of  8 mL aloes extracts for 5 hours decreased by 20.64% compared with that without addition of aloes extract.After 5 hours of UV irradiation,the peroxide values of emulsion with addition of aloes extracts decreased by 16.73% compared with that  without aloes extract.After being heated at 40 ℃ for 5 hours,the peroxide values of the emulsion with addition of aloes extracts decreased by 21.76% compared with that  without aloes extracts.The hydroxyl free radical scavenging capacity experiment shows that adding aloes extract in emulsion,the scavenging rate can increase by 5.5 times. Reference | Related Articles | Metrics | Comments（0） Select Conventional Constituents Analysis and Evaluation of Flue-Cured Tobacco Leaf from the Main Tobacco Areas of Xiangxi SHI Hui, ZHANG Qi-Long, LI Hui, TANG Zong-Bao, ZHANG Zi-Jie, WAN Zu-Gang, LIU Ji-Yan, ZHANG Yu-Ying, LI Yong-Fu, DUAN You-Gou, TIAN Feng, OU Juan , HUANG Yue-Lian journal6    2009, 30 (1): 93-97.   Abstract （3170）      PDF（pc） （492KB）（1720）       Knowledge map    Save 〗Five conventional constituents in 202 flue-cured tobacco samples from two tobacco areas (Longshan and Sangzhi) of Xiangxi in 2006 were analyzed and evaluated.By the comparison with that from Yunnan,it was found that the content of total sugar in Xiangxi tobacco was higher than the sugar range of good quality tobacco,but lower than that in Yunnan tobacco.For most tobacco samples in Xiangxi,the content of nicotine was in a suitable but slightly high level and higher than that from Yunnan.The content of Cl-1 and total nitrogen was within a suitable range,as well as the ratio of TS/alkali and K/Cl.The ratio of TS/alkali in tobacco from Xiangxi was generally lower than that from Yunnan and TN/alkali ratio lower than good quality tobacco.In order to further improve the quality of tobacco in Xiangxi areas,it is necessary to improve bionomic and cultivated conditions and to utilize flue-cured and modulation technique so as to reduce the content of total sugar and nicotine and to increase the content of K in Xiangxi tobacco. Reference | Related Articles | Metrics | Comments（0） Select Investigation on Alien Invasive Plants in Xiangxi of Hunan Province,China XU Liang, CHEN Gong-Xi, ZHANG Dai-Gui, ZHANG You-Jie, DENG Tao journal6    2009, 30 (1): 98-103.   Abstract （2463）      PDF（pc） （536KB）（1616）       Knowledge map    Save 56 species of alien invasive plants belonging to 24 families have been found in Xiangxi  of Hunan Province through preliminarily investigation.The most abundant family is Compositae including 19 species (32.14%).Among those species,35 species originate from America and others originate from Europe,Asia,Oceania and Africa.The invading paths include intentional (32 species),unconscious (20 species) and natural (2 species),50 species of Herbs account for 89.29% of the total species.Based on their geographical distribution，46 genera are classified into 9 areal-types,and most of them belong to the tropical distribution（22 generas，47.83 %）.Although harms of the alien invasive plants have not broken out,government must pay attention to it.Finally,some preventable strategies are suggested. Reference | Related Articles | Metrics | Comments（0） Select Some Newly Recorded Plants of Wulingshan Mt. in Hunan Province（I） ZHANG Dai-Gui, XU Liang, DENG Tao, LI Xiao-Teng, CHEN Gong-Xi journal6    2009, 30 (1): 104-106.   Abstract （2689）      PDF（pc） （520KB）（1825）       Knowledge map    Save Some newly recorded plants of Wulingshan Mt are reported in Hunan,including 1 genera,Draba Linn.There are 10 species:Actinodaphne lecomtei Allen，Hylotelephium verticillatum (Linn.) H. Ohba，Sedum elatinoides Franch.，Delphinium trifoliolatum Finet et Gagnep.,Corydalis tomentella Franch，Corydalis gracillima C. Y. Wu，Corydalis wilsonii N. E. Brown,Draba nemorosa Linn.、Yinshania acutangula (O. E. Schulz ) Y.H.Zhang，Viola biflora Linn；1 subspecies,Corydalis. acuminata Franch. subsp. hupehensis C. Y. Wu；1 form,Anemone hupehensis Lem. f. alba W. T. Wang.Description of  seed features of  Berberis oblanceifolia C.M.Hu is made 2 species are mergerd,Epimedium baojingense Q. L. Chen et B. M. Yang and Asarum caudigerum Hance var. cardiophyllum (Franch.) C.Y.Cheng et C.S.Yang. Reference | Related Articles | Metrics | Comments（0） Select Advances in Study of Epimdium L. ZHANG Ming-Yue, SHI Jin-Xiao journal6    2009, 30 (1): 107-113.   Abstract （3588）      PDF（pc） （1045KB）（2264）       Knowledge map    Save This paper reviews the progress in the study of Epimdium L.,including  taxononmy and distribution,chemical research,pharmacological effect,ecophysiology,introduction and cultivation and so on.Related prospects are made accordingly. Reference | Related Articles | Metrics | Comments（0） Select Current Situation and Countermeasures of Training High-LevelTrack and Field Teams in Colleges and Universities ZHANG Jian journal6    2009, 30 (1): 114-118.   Abstract （2423）      PDF（pc） （577KB）（1526）       Knowledge map    Save Through the method of documentary and invesigation interview,the author explores the current situation of training high-level track and field teams in colleges and universities of Hunan Province,and puts forword several treasures of great referential value. Reference | Related Articles | Metrics | Comments（0） Select Construction of Experiential Marketing Model of Sports Products DONG Hai-Zhen, DONG Zhi-Hui journal6    2009, 30 (1): 119-121.   Abstract （2297）      PDF（pc） （381KB）（1658）       Knowledge map    Save Starting from analying the core idea,model and strategy of experiential marketing,the author explores the experiential marketing model of sports product in order that marketing of sports product can adapt to the experiential economy. Reference | Related Articles | Metrics | Comments（0） Select Research on Inegration of Network Chemistry and Chemical Engineering Information Resources ZHU Chang-Ju, PENG Feng-Lan journal6    2009, 30 (1): 122-124.   Abstract （2297）      PDF（pc） （389KB）（1772）       Knowledge map    Save This paper introduces the type and the characteristics of chemistry chemical network information resources,analyze the necessity of chemistry chemical network information resource integration,and offers five kinds of integration modes,i.e.,integration based on OPAC,resouces navigation system,hyper link,inter-database retrieval,and subject information gateway. Reference | Related Articles | Metrics | Comments（0） Select Analysis of Types of Government Information Resources User LU Ming-Fang, QIN Su-E journal6    2009, 30 (1): 125-128.   Abstract （2494）      PDF（pc） （465KB）（1495）       Knowledge map    Save With the development of society informationization and the diversification of information users,research on different types of user’s information needs has become the highlights of research on information users at this stage.There are various types of government information resources users and various needs.By analyzing the relationship of the types of information users and information needs,the authors give several suggestions on personalization one-station and knowledge services. Reference | Related Articles | Metrics | Comments（0） Select Homogeneous Composed Groebner Basis over Noetherian Domain CHEN Xiao-Song, TANG Sheng journal6    2009, 30 (2): 1-4.   Abstract （2210）      PDF（pc） （2211KB）（1638）       Knowledge map    Save Composition is the operation of replacing variables in a polynomial with other polynomials.For Noetherian domain,homogeneous composition and Groebner basis computation is commutative if composition is compatible with the term ordering and it is a list of monic homogeneous polynomial with its monic powering product being a permuted powering. Reference | Related Articles | Metrics | Comments（0） Select New Judgment  Criteria for  Directed H-Graph LI Hong-Gang, LIU Yu-Hang journal6    2009, 30 (2): 5-9.   Abstract （2167）      PDF（pc） （1896KB）（1578）       Knowledge map    Save By applying determinant det2(A) in boolean algebra,the authors introduce the characteristic determinant det2(A) and discuss the relationship between the features of det2(A) and the cycle of directed graph.Based on the conclusions,the authors put forward some new features of directed H-graph and its new judgment criteria. Reference | Related Articles | Metrics | Comments（0） Select Ranking Method for Interval Numbers with Probability Distribution and Its Application LIU Jia-Cheng, LIN Tao, GUO Yao-Huang journal6    2009, 30 (2): 10-12.   Abstract （2285）      PDF（pc） （652KB）（1751）       Knowledge map    Save A new ranking method for interval numbers with probability distribution and its application are studied.Two notions,interval numbers with probability distribution and possibility,are given at first;then the ranking method of interval numbers with probability distribution is researched;at last,an applied example is given. Reference | Related Articles | Metrics | Comments（0） Select Applications of Polynomial Ideals to Trivariate Interpolation CUI Li-Hong, NIU Hui journal6    2009, 30 (2): 13-15.   Abstract （2040）      PDF（pc） （886KB）（1607）       Knowledge map    Save By using the basic theories of ideals and algebraic sets in the algebraic geometry,the multivariate Lagrange interpolation problems in the three dimensional Euclidean Space are dealt with in this paper.A new method for constructing properly posed set of nodes along algebraic surfaces is given,i.e.Algebraic Surfaces Superpositon Process,which generalizes the results obtained on this aspect and is of great significance in surface split-joint,scattered data interpolation and fitting,etc. Reference | Related Articles | Metrics | Comments（0） Select Uniqueness of Entire Function  Sharing a Set with Its Dirivative DING Jie, BAI Ling-Ling, YUAN Wen-Jun journal6    2009, 30 (2): 16-18.   Abstract （2403）      PDF（pc） （970KB）（1513）       Knowledge map    Save This paper studies the uniqueness problem of entire function  sharing a set with its dirivative by using the thoery of normal families.When the number of elements in the set is n+1(n≥2),various relations of the fuction and its dirivative are obtained. Reference | Related Articles | Metrics | Comments（0） Select Weighted Inequalities for  Singular Integral Operators with Dini-Type Condition FENG Wen-Li, ZHAO Jian-Hua journal6    2009, 30 (2): 19-21.   Abstract （2442）      PDF（pc） （1387KB）（1658）       Knowledge map    Save Now the study of singular integral operator with standard kernel is very popular.In order to enlarge the research scope, the authors decline the condition of kernel to Dini-type condition;and by using the quality of kernel and technique estimation,the authors obtain  some weighted norm inequalities for the singular integral operator with Dini-type condition. Reference | Related Articles | Metrics | Comments（0） Select Convolution Properties of Two Subclasses of p-Valent  Analytic Functions SUN Yong, KUANG Wei-Ping journal6    2009, 30 (2): 22-25.   Abstract （2080）      PDF（pc） （1941KB）（1553）       Knowledge map    Save The subclasses  M*p(n,α） and Np(n,α) of p-valent analytic functions in open unit disk are introduced.The authors derive several convolution properties of them by applying certain techniques based upon the principle of mathematical induction and the Cauchy-Schwarz inequality. Reference | Related Articles | Metrics | Comments（0） Select Global Asymptotic Stability of a Class of Third-Order Nonlinear Differential Equation DENG Chun-Hong journal6    2009, 30 (2): 26-29.   Abstract （2507）      PDF（pc） （1012KB）（1633）       Knowledge map    Save A better Lyapunov function of a class of  third-order nonlinear differential equations has been constructed by the method of the energy metric algorithm,and some sufficient conditions of globally asympotic stability of zero solution are obtained.The hard condition  that Lyapunov function shoud be  infinite has been removed,and the only requirement is that the positive orbit of the equation should be bounded.The result not only covers but also  improves some of the old results. Reference | Related Articles | Metrics | Comments（0） Select Oscillation Criteria for Second Order Nonlinear Functional Different Equations TANG Wen-Feng, XU Li-Xin journal6    2009, 30 (2): 30-32.   Abstract （2502）      PDF（pc） （1586KB）（1494）       Knowledge map    Save Using the theory of oscillation,the authors studied the oscillation criteria for second order nonlinear functional different equations.Some new oscillation criteria for equations were obtained.These criteria have extended and improved  a number of the existing results. Reference | Related Articles | Metrics | Comments（0） page Page 1 of 5 Total 193 records First page Prev page Next page Last page