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The Calculation of Parameters for DNA Kinetic Structure Based on Monte-Carlo Multiple Integrals 被引量:1
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作者 崔向军 蔡禄 《Agricultural Science & Technology》 CAS 2010年第5期5-6,16,共3页
Based on protein-DNA complex crystal structural data in up-to-date Nucleic Acid Database,the related parameters of DNA Kinetic Structure were investigated by Monte-Carlo Multiple Integrals on the base of modified DNA ... Based on protein-DNA complex crystal structural data in up-to-date Nucleic Acid Database,the related parameters of DNA Kinetic Structure were investigated by Monte-Carlo Multiple Integrals on the base of modified DNA structure statistical mechanical model,and time complexity and precision were analyzed on the calculated results. 展开更多
关键词 Monte-Carlo method multiple integrals DNA Time complexity Precision
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KIRCHHOFF FORMULA WITH LINE INTEGRAL FORM AND ITS APPLICATIONS
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作者 顾长青 徐金平 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 1999年第2期183-187,共5页
In this paper, Kirchhoff formula has been transformed from surface integral form into a line integral form. The new form of the formula can be applied to separate geometrical optical field from diffraction field, and ... In this paper, Kirchhoff formula has been transformed from surface integral form into a line integral form. The new form of the formula can be applied to separate geometrical optical field from diffraction field, and reduce the time of numerical computation greatly. Based on the new form, an analytical formula of diffraction field in the far zone has been presented for the polygonal aperture illuminated by a uniform plane wave. 展开更多
关键词 wave propagation DIFFRACTION integrals of Cauchy type kirchhoff formula line integral
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Refined Jensen-Based Multiple Integral Inequality and Its Application to Stability of Time-Delay Systems 被引量:5
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作者 Jidong Wang Zhanshan Wang +1 位作者 Sanbo Ding Huaguang Zhang 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2018年第3期758-764,共7页
This paper investigates the stability of time-delay systems via a multiple integral approach. Based on the refined Jensen-based inequality, a novel multiple integral inequality is proposed. Applying the multiple integ... This paper investigates the stability of time-delay systems via a multiple integral approach. Based on the refined Jensen-based inequality, a novel multiple integral inequality is proposed. Applying the multiple integral inequality to estimate the derivative of Lyapunov-Krasovskii functional(LKF) with multiple integral terms, a novel stability condition is formulated for the linear time-delay systems. Two numerical examples are employed to demonstrate the improvements of our results. 展开更多
关键词 multiple integral approach refined Jensen-based multiple integral inequality(RJMII) stability analysis time-delay systems
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CONVERGENCE RATE OF AN APPROXIMATION TO MULTIPLE INTEGRAL OF FBM 被引量:2
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作者 胡耀忠 汪宝彬 《Acta Mathematica Scientia》 SCIE CSCD 2010年第3期975-992,共18页
In this article, we study the rate of convergence of the polygonal approximation to multiple stochastic integral Sp (f) of fractional Brownian motion of Hurst parameter H 〈 1/2 when the fractional Brownian motion i... In this article, we study the rate of convergence of the polygonal approximation to multiple stochastic integral Sp (f) of fractional Brownian motion of Hurst parameter H 〈 1/2 when the fractional Brownian motion is replaced by its polygonal approximation. Under different conditions on f and for different p, we obtain different rates. 展开更多
关键词 Fractional Brownian motion multiple integral stratonovich integral convergence rate
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Internal Multiple Prediction Based on Imaging Profile Prediction and Kirchhoff Demigration 被引量:1
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作者 QIU Binhuang TAN Jun +6 位作者 DAN Zhiwei YU Jiashun YAN Hongyan LIU Baohua YU Kaiben SONG Peng XIE Chuang 《Journal of Ocean University of China》 SCIE CAS CSCD 2019年第6期1360-1370,共11页
This paper introduces an internal multiple prediction method based on imaging profile prediction and Kirchhoff demigration.First,based on an inputted prestack time migration profile,the method predicts the prestack ti... This paper introduces an internal multiple prediction method based on imaging profile prediction and Kirchhoff demigration.First,based on an inputted prestack time migration profile,the method predicts the prestack time migration profile that only includes internal multiples by inverse scattering series method.Second,the method uses velocity-weighted Kirchhoff demigration to create shot gathers that contains only internal multiples.Internal multiple prediction based on the prestack time migration profile effectively reduces the computational cost of multiple predictions,and the internal-multiple shot gathers created by Kirchhoff demigration remarkably reduces the complexity of the practical problem.Internal multiple elimination can be conducted through the combined adaptive multiple subtraction based on event tracing.Synthetic and field data tests show that the method effectively predicts internal multiples and possesses considerable potential in field data processing,particularly in areas where internal multiples develop seriously. 展开更多
关键词 INTERNAL multiple PREDICTION inverse scattering series method kirchhoff DEMIGRATION kirchhoff PRESTACK time migration
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Application of Amplitude Ratio Profiles Extracted with Prestack Kirchhoff Integral Migration 被引量:1
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作者 Wu Zhiqin Wang Shangxu +2 位作者 Zhang Shaohong Wang Yun Wang Pengcheng 《Petroleum Science》 SCIE CAS CSCD 2007年第1期36-40,共5页
The Z component and X component profiles of seismic waves extracted with the prestack Kirchhoff integral migration could approximate to the primary wave (P wave) and converted shear wave (PS wave) profiles under c... The Z component and X component profiles of seismic waves extracted with the prestack Kirchhoff integral migration could approximate to the primary wave (P wave) and converted shear wave (PS wave) profiles under certain conditions. The relative change of their reflection amplitude reflects the formation stress anomaly and subsurface media anisotropy. The principle and method for extracting amplitude ratios were studied and the application of amplitude ratio profiles was also examined when processing and interpreting actual seismic data. The amplitude ratio profile is an effective supplementary means of identifying the stratigraphic boundary and lithology. 展开更多
关键词 Prestack kirchhoff integral migration amplitude ratio profile converted shear wave primary wave LITHOLOGY
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CONVERGENCE RATE OF MULTIPLE FRACTIONAL STRATONOVICH TYPE INTEGRAL FOR HURST PARAMETER LESS THAN 1/2 被引量:1
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作者 汪宝彬 《Acta Mathematica Scientia》 SCIE CSCD 2011年第5期1694-1708,共15页
In this paper, we have investigated the problem of the convergence rate of the multiple integralwhere f ∈ Cn+1([0, T ]n) is a given function, π is a partition of the interval [0, T ] and {BtHi ,π} is a family of... In this paper, we have investigated the problem of the convergence rate of the multiple integralwhere f ∈ Cn+1([0, T ]n) is a given function, π is a partition of the interval [0, T ] and {BtHi ,π} is a family of interpolation approximation of fractional Brownian motion BtH with Hurst parameter H 1/2. The limit process is the multiple Stratonovich integral of the function f . In view of known results, the convergence rate is different for different multiplicity n. Under some mild conditions, we obtain that the uniform convergence rate is 2H in the mean square sense, where is the norm of the partition generating the approximations. 展开更多
关键词 fractional Brownian motion TRACE Stratonovich multiple integral convergence rate
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Solution of stress intensity factors of multiple cracks in plane elasticity with eigen COD formulation of boundary integral equation 被引量:1
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作者 郭钊 马杭 《Journal of Shanghai University(English Edition)》 CAS 2011年第3期173-179,共7页
The concept of eigen crack opening displacement (COD) can be defined as the COD of a crack in infinite plate under the tractions acting on the crack surface. By introducing this concept, the eigen COD formulation of... The concept of eigen crack opening displacement (COD) can be defined as the COD of a crack in infinite plate under the tractions acting on the crack surface. By introducing this concept, the eigen COD formulation of boundary integral equation is proposed in this paper, together with the solution procedures for multiple crack problems in plane elasticity. With the proposed approach, the multiple crack problems can be solved with the conventional displacement discontinuity boundary integral equations in an iterative fashion with a small size of system matrix as that in the numerical Green’s function (NGF) approach but without the trouble to determine the complementary solutions since the standard boundary element discretization on the crack surface is no longer required with the proposed approach. Some numerical examples computing the stress intensity factors are presented and compared with those in literature to show the accuracy and the effectiveness of the proposed approach. 展开更多
关键词 crack opening displacement (COD) multiple cracks stress intensity factor boundary integral equation ITERATION
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Some Important Properties of Multiple G-Ito Integral in the G-Expectation Space 被引量:1
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作者 Fangyuan Liu 《Journal of Applied Mathematics and Physics》 2018年第11期2219-2226,共8页
In the G-expectation space, we propose the multiple It&#244;?integral, which is driven by multi-dimensional G-Brownian motion. We prove the recursive relationship of multiple G-It&#244;?integrals by G-It&#... In the G-expectation space, we propose the multiple It&#244;?integral, which is driven by multi-dimensional G-Brownian motion. We prove the recursive relationship of multiple G-It&#244;?integrals by G-It&#244;formula and mathematical induction, and we obtain some computational formulas for a kind of multiple G-It&#244;?integrals. 展开更多
关键词 G-Brownian Motion multiple G-Ito integrals G-Ito Formula Recursive Relationship
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ROUGH MULTIPLE SINGULAR INTEGRALS ALONG HYPERSURFACES
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作者 邓浏睿 李中凯 +1 位作者 马柏林 伍火熊 《Acta Mathematica Scientia》 SCIE CSCD 2011年第5期2081-2098,共18页
In this paper, the authors study the mapping properties of singular integrals on product domains with kernels in L(log+L)ε(Sm-1 × Sn-1) (ε = 1 or 2) supported by hyper-surfaces. The Lp bounds for such si... In this paper, the authors study the mapping properties of singular integrals on product domains with kernels in L(log+L)ε(Sm-1 × Sn-1) (ε = 1 or 2) supported by hyper-surfaces. The Lp bounds for such singular integral operators as well as the related Marcinkiewicz integral operators are established, provided that the lower dimensional maximal function is bounded on Lq(R3) for all q 1. The condition on the integral kernels is known to be optimal. 展开更多
关键词 multiple singular integral Marcinkiewicz integral maximal function HYPERSURFACE rough kernelε
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Numerical solution of multiple hole problem by using boundary integral equation
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作者 Yizhou Chen~(a)) Division of Engineering Mechanics,Jiangsu University,Zhenjiang 212013,China 《Theoretical & Applied Mechanics Letters》 CAS 2011年第3期27-29,共3页
This paper studies a numerical solution of multiple hole problem by using a boundary integral equation.The studied problem can be considered as a supposition of many single hole problems.After considering the interact... This paper studies a numerical solution of multiple hole problem by using a boundary integral equation.The studied problem can be considered as a supposition of many single hole problems.After considering the interaction among holes,an algebraic equation is formulated,which is then solved by using an iteration technique.The hoop stress around holes can be finally determined. One numerical example is provided to check its accuracy. 展开更多
关键词 boundary integral equation ITERATION multiple holes stress concentration factors
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An Extended Multiple Hardy-Hilbert's Integral Inequality
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作者 Hong Yong Ji You-qing 《Communications in Mathematical Research》 CSCD 2013年第1期14-22,共9页
In this paper, by introducing the norm ||x|| (x ∈ Rn), a multiple Hardy- Hilbert's integral inequality with the best constant factor and it's equivalent form are given.
关键词 multiple Hardy-Hilbert's integral inequality weight function best constant factor β-function Г-function
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The Distribution of Multiple Shot Noise Process and Its Integral
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作者 Jiwook Jang 《Applied Mathematics》 2014年第3期478-489,共12页
In this paper, we study multiple shot noise process and its integral. We analyse these two processes systematically for their theoretical distributions, based on the piecewise deterministic Markov process theory devel... In this paper, we study multiple shot noise process and its integral. We analyse these two processes systematically for their theoretical distributions, based on the piecewise deterministic Markov process theory developed by Davis [1] and the martingale methodology used by Dassios and Jang [2]. The analytic expressions of the Laplace transforms of these two processes are presented. We also obtain the multivariate probability generating function for the number of jumps, for which we use a multivariate Cox process. To derive these, we assume that the Cox processes jumps, intensity jumps and primary event jumps are independent of each other. Using the Laplace transform of the integral of multiple shot noise process, we obtain the tail of multivariate distributions of the first jump times of the Cox processes, i.e. the multivariate survival functions. Their numerical calculations and other relevant joint distributions’ numerical values are also presented. 展开更多
关键词 multiple Shot Noise PROCESS and ITS integral MULTIVARIATE Cox PROCESS Piecewise Deterministic Markov PROCESS MARTINGALE Methodology MULTIVARIATE Survival Functions
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ON MULTIPLE WIENER INTEGRAL EXPANSIONS FOR D'-VALUED NONLINEAR RANDOM FUNCTIONALS
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作者 吴奖伦 《Acta Mathematica Scientia》 SCIE CSCD 1993年第2期220-228,共9页
In this paper, the multiple stochastic integral with respect to a Wiener D'-process is defined. And also it is shown that for a D'-valued nonlinear random functional there exists a sequence of multiple integra... In this paper, the multiple stochastic integral with respect to a Wiener D'-process is defined. And also it is shown that for a D'-valued nonlinear random functional there exists a sequence of multiple integral kernels such that the nonlinear functional can be expanded by series of multiple Wiener integrals of the integral kernels with respect to the Wiener D'-process. 展开更多
关键词 VALUED NONLINEAR RANDOM FUNCTIONALS ON multiple WIENER integral EXPANSIONS FOR D ONB
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APPROXIMATION OF SPHERICAL MEANS OF MULTIPLE FOURIER INTEGRALS AND FOURIER SERIES ON SET OF FULL MEASURE
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作者 Wang Shiming Zhejiang Institute of Technology, China Math. Section Dept. of Basic Courses Zhejiang Institute of Technology, Hangzhou, 310014, China 《Analysis in Theory and Applications》 1994年第2期17-23,共7页
In this paper we consider the approximation for functions in some subspaces of L^2 by spherical means of their Fourier integrals and Fourier series on set of full measure. Two main theorems are obtained.
关键词 SET Th Pro APPROXIMATION OF SPHERICAL MEANS OF multiple FOURIER integralS AND FOURIER SERIES ON SET OF FULL MEASURE WANG
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The Optimal Matching Parameter of Half Discrete Hilbert Type Multiple Integral Inequalities with Non-Homogeneous Kernels and Applications
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作者 HONG Yong HE Bing 《Chinese Quarterly Journal of Mathematics》 2021年第3期252-262,共11页
By using the weight function method,the matching parameters of the half discrete Hilbert type multiple integral inequality with a non-homogeneous kernel K(n,||x||ρ,m)=G(nλ1||x||ρmλ,2)are discussed,some equivalent ... By using the weight function method,the matching parameters of the half discrete Hilbert type multiple integral inequality with a non-homogeneous kernel K(n,||x||ρ,m)=G(nλ1||x||ρmλ,2)are discussed,some equivalent conditions of the optimal matching parameter are established,and the expression of the optimal constant factor is obtained.Finally,their applications in operator theory are considered. 展开更多
关键词 Non-homogeneous kernel Half discrete Hilbert type multiple integral in-equality Best constant factor Optimal matching parameter Operator norm Bounded operator
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ON THE LOCALIZATION AND CONVERGENCE OF MULTIPLE FOURIER INTEGRAL BY BOCHNER-RIESZ MEANS
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作者 Yu Maohe Kunming Hydropower Scientific Research Institute, China 《Analysis in Theory and Applications》 1993年第2期37-49,共13页
In this paper we consider lim _(R-) B_R^(f,x_0), in one case that f_x_0 (t) is a ABMV function on [0, ∞], and in another case that f∈L_(m-1)~1(R~) and x^k/~kf∈BV(R) when |k| = m-1 and f(x) = 0 when |x -x_0|<δ f... In this paper we consider lim _(R-) B_R^(f,x_0), in one case that f_x_0 (t) is a ABMV function on [0, ∞], and in another case that f∈L_(m-1)~1(R~) and x^k/~kf∈BV(R) when |k| = m-1 and f(x) = 0 when |x -x_0|<δ for some δ>0. Our theormes improve the results of Pan Wenjie ([1]). 展开更多
关键词 LIM ON THE LOCALIZATION AND CONVERGENCE OF multiple FOURIER integral BY BOCHNER-RIESZ MEANS
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渐近二次线性Kirchhoff-Schr dinger-Poisson系统解的多重性
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作者 孙歆 段誉 安育成 《西北师范大学学报(自然科学版)》 CAS 2024年第5期97-103,共7页
研究R^(3)上的一类Kirchhoff-Schr dinger-Poisson系统解的多重性.当非线性项在无穷远处满足渐近二次线性增长条件时,利用变分方法建立系统非平凡解的多重性结果.
关键词 kirchhoff-Schr dinger-Poisson系统 变分法 渐近二次线性 多重性
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利用叠前Kirchhoff积分偏移识别小断裂与低幅度构造 被引量:28
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作者 滕佃波 汪鹏程 +1 位作者 王赟 姚振兴 《地球物理学进展》 CSCD 北大核心 2005年第4期1035-1038,共4页
利用常规地震剖面精细解释小断层和低幅度构造存在较大困难.本文利用纵波和横波速度模型对采集得到的二维地震数据进行叠前Kirchhoff积分偏移得到纵波和转换横波深度和时间剖面,根据不同分量的深度和时间剖面联合解释小断层与低构造.深... 利用常规地震剖面精细解释小断层和低幅度构造存在较大困难.本文利用纵波和横波速度模型对采集得到的二维地震数据进行叠前Kirchhoff积分偏移得到纵波和转换横波深度和时间剖面,根据不同分量的深度和时间剖面联合解释小断层与低构造.深度剖面克服了时间剖面受地层厚度和地层速度共同制约的缺点,有利于识别低幅度构造.纵波(P)剖面与转换横波(PS)剖面相比有利于识别层间小断裂.我们对准噶尔盆地实际地震资料的处理和解释证实了这些优点. 展开更多
关键词 叠前kirchhoff积分偏移 低幅度构造 纵波 转换横波
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一类渐近4次线性 Kirchhoff 方程的多解性 被引量:7
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作者 廖家锋 张鹏 唐春雷 《西南师范大学学报(自然科学版)》 CAS CSCD 北大核心 2014年第8期19-22,共4页
利用变分方法,获得了一类渐近4次线性Kirchhoff方程的2个非零非平凡解的存在性.
关键词 kirchhoff方程 强制 变分法 多解性
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