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On Integrated Solutions to Abstract Cauchy Problem
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作者 张升海 《Chinese Quarterly Journal of Mathematics》 CSCD 1997年第2期24-28, ,共5页
Integrated semigroups which are not exponentially bounded have been studied. The integrated solutions of inhomogeneous and nonlinear abstract Caucby problems are discussed. The reults extends and improves the theorems... Integrated semigroups which are not exponentially bounded have been studied. The integrated solutions of inhomogeneous and nonlinear abstract Caucby problems are discussed. The reults extends and improves the theorems in [1]. 展开更多
关键词 integrated semigroups abstract Cauchy problems integrated solutions
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ZTE's Integrated Solutions for CDMA Network
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作者 Chen Xueyin Zhang Jun (CDMA Division of ZTE Corporation,Shenzhen 518057,China) 《ZTE Communications》 2003年第2期25-27,共3页
ZTE's integrated solutions for CDMA network coverage and value- added services are presented.Different schemes for specific appli- cation requirements are described in detail.The integrated service platforms conce... ZTE's integrated solutions for CDMA network coverage and value- added services are presented.Different schemes for specific appli- cation requirements are described in detail.The integrated service platforms concerning positioning service,multimedia Email,mobile office,etc.are overviewed. 展开更多
关键词 CDMA ZTE’s integrated solutions for CDMA Network BTS for
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Onto CSD: an ontology-based security model for an integrated solution of cyberspace defense
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作者 Dandan WU Jie CHEN +1 位作者 Ruiyun XIE Ke CHEN 《Frontiers of Information Technology & Electronic Engineering》 SCIE EI CSCD 2024年第9期1209-1225,共17页
The construction of an integrated solution for cyberspace defense with dynamic, flexible, and intelligent features is a new idea. To solve the problem whereby traditional static protection methods cannot respond to va... The construction of an integrated solution for cyberspace defense with dynamic, flexible, and intelligent features is a new idea. To solve the problem whereby traditional static protection methods cannot respond to various network attacks or security demands in an adversarial network environment in time, and to form a complete integrated solution from “threat discovery” to “decision-making generation,” we propose an ontology-based security model, Onto CSD, for an integrated solution of cyberspace defense that uses Web ontology language(OWL) to represent the ontology classes and relationships of threat monitoring, decision-making, response, and defense in cyberspace, and uses semantic Web rule language(SWRL) to design the defensive reasoning rules. Onto CSD can discover potential relationships among network attacks, vulnerabilities, the security state, and defense strategies. Further, an artificial intelligence(AI) expert system based on case-based reasoning(CBR) is used to quickly generate a detailed and comprehensive decision-making scheme. Finally, through Kendall ' s coefficient of concordance(W) and four experimental cases in a typical computer network defense(CND) system, which reasons on represented facts and the ontology, Onto CSD ' s consistency and its feasibility to solve the issues in the field of cyberspace defense are validated. Onto CSD supports automatic association and reasoning, and provides an integrated solution framework of cyberspace defense. 展开更多
关键词 Cyberspace defense integrated solution ONTOLOGY Case-based reasoning(CBR) Computer network defense(CND)
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ZTE Tests Integrated NGN Solutions at GMI 2008
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《ZTE Communications》 2008年第4期10-10,共1页
ZTE Corporation announced its participation in the Global MSF Interoperability (GMI) 2008 event held by the MultiService Forum (MSF) to advance the development of
关键词 ZTE Tests integrated NGN solutions at GMI 2008 MSF NGN GMI
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ZTE Wins Best Integrated IMS Solution Award
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作者 ZTE Corporation 《ZTE Communications》 2012年第2期F0003-F0003,共1页
25 May 2012, Shenzhen- ZTE Corporation has been awarded the Best Integrated IMS Solution Award at IMS World Forum 2012 in Madrid. ZTE was awarded for its IMS-based legacy voice service (PSTN/ISDN) emulation solution... 25 May 2012, Shenzhen- ZTE Corporation has been awarded the Best Integrated IMS Solution Award at IMS World Forum 2012 in Madrid. ZTE was awarded for its IMS-based legacy voice service (PSTN/ISDN) emulation solution, which has been deployed in 80 commercial networks worldwide. 展开更多
关键词 ZTE Wins Best integrated IMS solution Award IMS ISDN
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ON THE ASYMPTOTICAL BEHAVIOUR OF SOLUTIONS OF A CLASS OF NONLINEAR CONTROL SYSTEMS 被引量:3
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作者 滕志东 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1999年第12期1405-1412,共8页
In this paper, the asymptotical behaviour solutions of a class of nonlinear control systems are studied. By establishing infinite integrals along solutions of the system and drawing support from a LaSalle's invari... In this paper, the asymptotical behaviour solutions of a class of nonlinear control systems are studied. By establishing infinite integrals along solutions of the system and drawing support from a LaSalle's invariance principle of integral form, criteria of dichotomy and global asymptotical behaviour of solutions are obtained. This work is an improvement and further extension of research methods and results of A. S. Aisagaliev. 展开更多
关键词 nonlinear control system integral along solution DICHOTOMY global asymptotical behaviour invariance principle
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Dynamic response of axially moving Timoshenko beams: integral transform solution 被引量:5
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作者 安晨 苏健 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2014年第11期1421-1436,共16页
The generalized integral transform technique (GITT) is used to find a semianalytical numerical solution for dynamic response of an axially moving Timoshenko beam with clamped-clamped and simply-supported boundary co... The generalized integral transform technique (GITT) is used to find a semianalytical numerical solution for dynamic response of an axially moving Timoshenko beam with clamped-clamped and simply-supported boundary conditions, respectively. The implementation of GITT approach for analyzing the forced vibration equation eliminates the space variable and leads to systems of second-order ordinary differential equations (ODEs) in time. The MATHEMATICA built-in function, NDSolve, is used to numerically solve the resulting transformed ODE system. The good convergence behavior of the suggested eigenfunction expansions is demonstrated for calculating the transverse deflection and the angle of rotation of the beam cross-section. Moreover, parametric studies are performed to analyze the effects of the axially moving speed, the axial tension, and the amplitude of external distributed force on the vibration amplitude of axially moving Timoshenko beams. 展开更多
关键词 axially moving Timoshenko beam transverse vibration integral transform hybrid solution
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PATH INTEGRAL SOLUTION OF NONLINEAR DYNAMIC BEHAVIOR OF STRUCTURE UNDER WIND EXCITATION 被引量:1
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作者 王仲刚 程华 邓洪洲 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2005年第10期1303-1311,共9页
A numerical scheme for the nonlinear behavior of structure under wind excitation is investigated. With the white noise filter of turbulent-wind fluctuations, the nonlinear motion equation of structures subjected to wi... A numerical scheme for the nonlinear behavior of structure under wind excitation is investigated. With the white noise filter of turbulent-wind fluctuations, the nonlinear motion equation of structures subjected to wind load was modeled as the Ito' s stochastic differential equation. The state vector associated with such a model is a diffusion process. A continuous linearization strategy in the time-domain was adopted. Based on the solution series of its stochastic linearization equations, the formal probabilistic density of the structure response was developed by the path integral technique. It is shown by the numerical example of a guyed mast that compared with the frequency-domain method and the time-domain nonlinear analysis, the proposed approach is highlighted by high accuracy and effectiveness. The influence of the structure non-linearity on the dynamic reliability assessment is also analyzed in the example. 展开更多
关键词 NONLINEAR dynamic response wind load path integral solution white noise joint statistical distribution
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Global Existence and Decay of Solution to Parabolic-Parabolic Keller-Segel Model in R^(d)
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作者 ZHONG Wenbin LIU Xiaofeng 《Journal of Donghua University(English Edition)》 CAS 2022年第1期85-94,共10页
We consider the global existence and decay of integral solutions to the parabolic-parabolic Keller-Segel system in d-dimension.On the one hand,by Banach fixed point theorem and some properties of heat kernel,we prove ... We consider the global existence and decay of integral solutions to the parabolic-parabolic Keller-Segel system in d-dimension.On the one hand,by Banach fixed point theorem and some properties of heat kernel,we prove the local existence and the global existence of integral solutions for the different initial data under some conditions that involve the size of the initial data.On the other hand,in the case of global solutions,we obtain their optimal time decay by Gronwall’s lemma. 展开更多
关键词 Keller-Segel system global existence integral solution local existence optimal time decay rate
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UNIQUENESS OF SOLUTIONS FOR A CLASS OF NON-LINEAR VOLTERRAINTEGRAL EQUATIONS WITHOUT CONTINUITY
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作者 董卫 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1997年第12期0-0,0-0+0-0,共6页
In this paper. the fixed point theorem of increasing opera for with non-continuityis uilized to discuss foe exislence and uniqueness of positire solution for a class of nonlinear Volterra integral equations. An import... In this paper. the fixed point theorem of increasing opera for with non-continuityis uilized to discuss foe exislence and uniqueness of positire solution for a class of nonlinear Volterra integral equations. An important condition of continuity can bereplaced by weak condition. 展开更多
关键词 normal cone increasing operator positive solution for integral equation
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RESTRICTED NONLINEAR APPROXIMATION AND SINGULAR SOLUTIONS OF BOUNDARY INTEGRAL EQUATIONS
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作者 Reinhard Hochmuth (Freie Universitat Berlin, Germany) 《Approximation Theory and Its Applications》 2002年第1期1-25,共25页
This paper studies several problems , which are potentially relevant for the construction of adaptive numerical schemes. First, biorthogonal spline wavelets on [0,1] are chosen as a starting point for characterization... This paper studies several problems , which are potentially relevant for the construction of adaptive numerical schemes. First, biorthogonal spline wavelets on [0,1] are chosen as a starting point for characterizations of functions in Besom spaces B(?)(0,1) with 0<σ<∞ and (1+σ)-1<γ<∞. Such function spaces are known to be related to nonlinear approximation. Then so called restricted nonlinear approximation procedures with respect to Sobolev space norms are considered. Besides characterization results Jackson type estimates for various tree-type and tresholding algorithms are investigated. Finally known approximation results for geometry induced singularity functions of boundary integeral equations are combined with the characterization results for restricted nonlinear approximation to show Besov space regularity results. 展开更多
关键词 In RESTRICTED NONLINEAR APPROXIMATION AND SINGULAR solutionS OF BOUNDARY INTEGRAL EQUATIONS
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Analytical solution for a circular roadway considering the transient effect of excavation unloading
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作者 Feng Qiang Jiang Binsong +1 位作者 Wang Gang Hu Chuanpeng 《International Journal of Mining Science and Technology》 SCIE EI CSCD 2016年第4期543-549,共7页
The rocks surrounding a roadway exhibit some special and complex phenomena with increasing depth of excavation in underground engineering.Quasi-static analysis cannot adequately explain these engineering problems.The ... The rocks surrounding a roadway exhibit some special and complex phenomena with increasing depth of excavation in underground engineering.Quasi-static analysis cannot adequately explain these engineering problems.The computational model of a circular roadway considering the transient effect of excavation unloading is established for these problems.The time factor makes the solution of the problem difficult.Thus,the computational model is divided into a dynamic model and a static model.The Laplace integral transform and inverse transform are performed to solve the dynamic model and elasticity theory is used to analyze the static model.The results from an example show that circumferential stress increases and radial stress decreases with time.The stress difference becomes large gradually in this progress.The displacement increases with unloading time and decreases with the radial depth of surrounding rocks.It can be seen that the development trend of unloading and displacement is similar by comparing their rates.Finally,the results of ANSYS are used to verify the analytical solution.The contrast indicates that the laws of the two methods are basically in agreement.Thus,the analysis can provide a reference for further study. 展开更多
关键词 Excavation unloading Transient effect Circle roadwayAnalytical solution Laplace integral transform Den lseger method
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EQUATION OF MATHEMATICAL PHYSICS AND OTHER AREAS OF APPLICATION: A CLASSICAL INTEGRABLE SYSTEM AND THE INVOLUTIVE REPRESENTATION OF SOLUTIONS OF THE HIGHER ORDER KAUP-NEWELL EQUATION
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作者 李忠定 《Acta Mathematica Scientia》 SCIE CSCD 1993年第4期449-456,共8页
Under the constrained condition induced by the eigenfunction expresson of the potential (u, v)T = (-[A2q, q], [A2p, p])T = f (q, p), the spatial part of the Lax pair of the Kaup-Newell equation is non linearized to be... Under the constrained condition induced by the eigenfunction expresson of the potential (u, v)T = (-[A2q, q], [A2p, p])T = f (q, p), the spatial part of the Lax pair of the Kaup-Newell equation is non linearized to be a completely integrable system (R2N, Adp AND dq, H = H-1) with the Hamiltonian H-1 = -[A3q, p]-1/2[A2p, p][A2q, q]. while the nonlinearization of the time part leads to its N-involutive system {H(m)}. The involutive solution of the compatible fsystem (H-1), (H(m)) is mapped by into the solution of the higher order Kaup-Newell equation. 展开更多
关键词 EQUATION OF MATHEMATICAL PHYSICS AND OTHER AREAS OF APPLICATION A CLASSICAL INTEGRABLE SYSTEM AND THE INVOLUTIVE REPRESENTATION OF solutionS OF THE HIGHER ORDER KAUP-NEWELL EQUATION CTAM AZ
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THE INTEGRAL AS A FUNCTION OF THE UPPER LIMIT AND AN ANALYTICAL SOLUTION TO PLANE STRAIN DRAWING AND EXTRUSION
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作者 赵德文 赵志业 张强 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1990年第8期759-765,共7页
A kinematically admissible velocity field which is different from Avitzur's is established in Cartesian Coordinates. An upper-bound analytical solution to strip drawing andextrusion is obtained by using the integr... A kinematically admissible velocity field which is different from Avitzur's is established in Cartesian Coordinates. An upper-bound analytical solution to strip drawing andextrusion is obtained by using the integral as a function of the upper limit in this paper. 展开更多
关键词 THE INTEGRAL AS A FUNCTION OF THE UPPER LIMIT AND AN ANALYTICAL solution TO PLANE STRAIN DRAWING AND EXTRUSION
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Entropy Formulation for Triply Nonlinear Degenerate Elliptic-Parabolic-Hyperbolic Equation with Zero-Flux Boundary Condition
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作者 Mohamed Karimou Gazibo 《Journal of Applied Mathematics and Physics》 2023年第4期933-948,共16页
In this note, we investigated existence and uniqueness of entropy solution for triply nonlinear degenerate parabolic problem with zero-flux boundary condition. Accordingly to the case of doubly nonlinear degenerate pa... In this note, we investigated existence and uniqueness of entropy solution for triply nonlinear degenerate parabolic problem with zero-flux boundary condition. Accordingly to the case of doubly nonlinear degenerate parabolic hyperbolic equation, we propose a generalization of entropy formulation and prove existence and uniqueness result without any structure condition. 展开更多
关键词 Degenerate Elliptic-Parabolic Hyerbolic Equation Zero-Flux Boundary Condition Structure Condition Entropy Formulation Multi-Step Approximation Nonlinear Semigroup Theories Integral and Mild solution
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CONTROLLABILITY OF NEUTRAL FUNCTIONAL DIFFERENTIAL EQUATIONS WITH INFINITE DELAY 被引量:1
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作者 Bouzahir Hassane 傅显隆 《Acta Mathematica Scientia》 SCIE CSCD 2011年第1期73-80,共8页
In this article, we give sufficient conditions for controllability of some partial neutral functional differential equations with infinite delay. We suppose that the linear part is not necessarily densely defined but ... In this article, we give sufficient conditions for controllability of some partial neutral functional differential equations with infinite delay. We suppose that the linear part is not necessarily densely defined but satisfies the resolvent estimates of the Hille-Yosida theorem. The results are obtained using the integrated semigroups theory. An application is given to illustrate our abstract result. 展开更多
关键词 CONTROLLABILITY integrated semigroup integral solution infinity delay
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On the Exceedance Probabilities of Extreme Drift Motions of An Offshore Structure 被引量:1
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作者 王迎光 谭家华 薛雷平 《China Ocean Engineering》 SCIE EI 2009年第1期27-35,共9页
The response statistics of a compliant offshore structure excited by slowly varying wave drift forces is calculated by use of a numerical path integral solution method. The path integral solution is based on the Ganss... The response statistics of a compliant offshore structure excited by slowly varying wave drift forces is calculated by use of a numerical path integral solution method. The path integral solution is based on the Ganss-Legendre interpolation scheme, and the values of the response probability density are obtained at the Gauss quadrature points in sub-intervals. It is demonstrated that a distinct advantage of the path integral solution is that the joint probability density of the response displacement and velocity is one of the by products of the calculations. This makes it possible to calculate the mean level up-crossing rates, which provides estimates of the exceedance probabilities of specified response levels for given time periods. 展开更多
关键词 exceedance probabilities mean level up-crossing rates path integral solution method compliant offshore structure joint probability density
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PERTURBED NONLINEAR EVOLUTION INCLUSIONS IN BANACH SPACES
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作者 薛星美 宋国柱 《Acta Mathematica Scientia》 SCIE CSCD 1995年第2期189-195,共7页
In this paper we discuss tLhe existence results of the integral solutions to nonlinear evolution inclusion: u' (t) ∈ Au(t) +F(t,u(t)), where A is m-dissipative and F is a set valued map in separable Banach spaces... In this paper we discuss tLhe existence results of the integral solutions to nonlinear evolution inclusion: u' (t) ∈ Au(t) +F(t,u(t)), where A is m-dissipative and F is a set valued map in separable Banach spaces, and extend the relative results in references. 展开更多
关键词 nonlinear evolution inclusion m-dissipative operator. equicontinuous semigroup integral solution Hausdorff measure Kamke function
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ASYMPTOTIC BEHAVIOR OF NON-AUTONOMOUS DISSIPATIVE SYSTEMS IN HILBERT SPACES
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作者 李刚 JongKyuKim 《Acta Mathematica Scientia》 SCIE CSCD 1998年第S1期25-30,共6页
This paper dwells upon the asymptotic behavior, as t→∞, of the integral solution u(t) to the nonhaear evolution equation u'(t) ∈A(t)u(f) + g(t),t≥s,u(s) =xo∈D(A(a)),where {A(t)}t≥s is a family m-ipative oper... This paper dwells upon the asymptotic behavior, as t→∞, of the integral solution u(t) to the nonhaear evolution equation u'(t) ∈A(t)u(f) + g(t),t≥s,u(s) =xo∈D(A(a)),where {A(t)}t≥s is a family m-ipative operator in a Hlilbert space H,and g∈L(loc)(0,∞;H). We prove that converges weakly, as t→∞, uniforluly in h≥0, which applies that u(t) is weak convergence if and only if u(t) is weakly asymptotically regular i.e., u(t + h) -u(f) →0 for h≥0. 展开更多
关键词 Nonlinear evolution equation dissipative operator integral solution asymptotic behavior
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Nonlinear analysis of slow drift extreme responses of a compliant offshore structure
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作者 Yingguang Wang Jiahua Tan School of Naval Architecture, Ocean and Civil Engineering,Shanghai Jiao Tong University, 200240 Shanghai, China 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2009年第5期651-657,共7页
This paper first demonstrates that the accuracy and efficiency of the method of numerical simulation often used is not very high in predicting the slow drift surge extreme responses of a compliant offshore structure. ... This paper first demonstrates that the accuracy and efficiency of the method of numerical simulation often used is not very high in predicting the slow drift surge extreme responses of a compliant offshore structure. Next, the slow drift surge extreme responses of the structure are analyzed via the path integral solution racy and efficiency of the PIS (PIS) method, and the accumethod is found to be higher than those of the numerical simulation method. A compound PIS (CPIS) method is first proposed in this article to further improve the efficiency of the path integral solution method, and the accuracy and efficiency of the CPIS method is validated. 展开更多
关键词 Compliant offshore simulation Path integral solution solution structure Numerical Compound path integral
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