云南高校图书馆联盟文献共享服务平台- HIGH-ORDER

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High Order Total Variational Denoising Algorithm Based on l_(0) Overlapping Combination Sparse: 《Instrumentation》2024年第3期30-40,共11页Binxin Tang Xianchun Zhou Chengcheng Cui Yang Rui; funded by National Nature Science Foundation of China,grant number 61302188。; For addressing impulse noise in images, this paper proposes a denoising algorithm for non-convex impulse noise images based on the l_(0) norm fidelity term. Since the total variation of the l_(0) norm has a better den...; 关键词：image denoising overlapping group sparsity high-order total variation l_(0)-norm ADMM

975 nm multimode semiconductor lasers with high-order Bragg diffraction gratings: 《Journal of Semiconductors》2024年第3期38-44,共7页Zhenwu Liu Li Zhong Suping Liu Xiaoyu Ma; supported by the National Key R&D Program of China,No.2022YFB4601201.; The 975 nm multimode diode lasers with high-order surface Bragg diffraction gratings have been simulated and calcu-lated using the 2D finite difference time domain(FDTD)algorithm and the scattering matrix method(SMM)....; 关键词：laser diodes distributed Bragg reflector high order gratings high power laser diodes narrow spectrum width

Implicit high-order discontinuous Galerkin method with HWENO type limiters for steady viscous flow simulations被引量：2: 《Acta Mechanica Sinica》2013年第4期526-533,共8页Zhen-Hua Jiang Chao Yan Jian Yu; supported by the National Basic Research Program of China(2009CB724104); Two types of implicit algorithms have been im- proved for high order discontinuous Galerkin （DG） method to solve compressible Navier-Stokes （NS） equations on tri- angular grids. A block lower-upper symmetric Gauss...; 关键词：Discontinuous Galerkin （DG） scheme ~ Implicitmethod ~ HWENO ~ High order ~ Unstructured grids

Improving the High Order Spectral Volume Formulation Using a Diffusion Regulator: 《Communications in Computational Physics》2012年第6期247-260,共14页Ravi Kannan Zhijian Wang; The first author gratefully acknowledges and appreciates the discussions he had with Prof.Raghurama Rao and Dr.Jaisankar,Indian Institute of Science,Bangalore,India.; The concept of diffusion regulation(DR)was originally proposed by Jaisankar for traditional second order finite volume Euler solvers.This was used to decrease the inherent dissipation associated with using approximate...; 关键词：Diffusion regulation spectral volume HIGH-ORDER Rusanov flux Navier Stokes equations

Study on High Order Perturbation-based Nonlinear Stochastic Finite Element Method for Dynamic Problems被引量：1: 《Journal of Marine Science and Application》2010年第4期386-392,共7页王庆姚竞争; Several algorithms were proposed relating to the development of a framework of the perturbation-based stochastic finite element method (PSFEM) for large variation nonlinear dynamic problems. For this purpose, algorith...; 关键词：HIGH-ORDER stochastic variational principle nonlinear SFEM perturbation technique

Z-scan analysis of high-order nonlinear refraction effect induced by using elliptic Gaussian beam: 《Chinese Physics B》2010年第6期541-547,共7页郭世方田强; Project supported by the National Natural Science Foundation of China (Grant No.10574011); The irradiance of an elliptic Gaussian beam that is high enough to excite high-order nonlinear refraction effect is used to calculate the normalized on-axis transmittance function in the z-scan technique by introducin...; 关键词：Z-SCAN elliptic Gaussian beam complex beam parameter high order

3-D simulations of freak waves based on high-order spectral method: 《Journal of Harbin Institute of Technology(New Series)》2010年第2期286-291,共6页赵西增孙昭晨梁书秀; Sponsored by the National Natural Science Foundation of China (Grant No. 50779004); Three-dimensional ( 3-D) directional wave focusing is one of the mechanisms that contribute to the generation of freak waves. To simulate and analyze this phenomenon,a 3-D wave focusing model is proposed based on the ...; 关键词：freak wave high order spectral method directional spectrum wave focusing wave model

Efficient Implicit Non-linear LU-SGS Approach for Compressible Flow Computation Using High-Order Spectral Difference Method被引量：2: 《Communications in Computational Physics》2009年第2期760-778,共19页Yuzhi Sun Z.J.Wang Yen Liu; The study was partially funded by Rockwell Scientific/DARPA contract W911NF-04-C-0102,AFOSR grant FA9550-06-1-0146,and DOE grant DE-FG02-05ER25677;The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements,either expressed or im-plied,of DARPA,AFOSR,DOE,or the U.S.Government.; An implicit non-linear lower-upper symmetric Gauss-Seidel(LU-SGS)solution algorithm has been developed for a high-order spectral difference Navier-Stokes solver on unstructured hexahedral grids.The non-linear LU-SGS s...; 关键词：High order unstructured grids spectral difference NAVIER-STOKES IMPLICIT

High-Order Multidomain Spectral Difference Method for the Navier-Stokes Equations on Unstructured Hexahedral Grids被引量：2: 《Communications in Computational Physics》2007年第2期310-333,共24页Yuzhi Sun Z.J.Wang Yen Liu; funded by Rockwell Scientific/DARPA under contractW911NF-04-C-0102,by DOE grant DE-FG02-05ER25677 and AFOSR grant FA9550-06-1-0146.; A high order multidomain spectral difference method has been developed for the three dimensional Navier-Stokes equations on unstructured hexahedral grids.The method is easy to implement since it involves one-dimension...; 关键词：High order unstructured grids spectral difference Navier-Stokes.

A HIGH-ORDER PAD SCHEME FOR KORTEWEG-DE VRIES EQUATIONS被引量：2: 《Journal of Hydrodynamics》2005年第6期654-659,共6页XU Zhen-li LIU Ru-xun; ProjectsupportedbytheNationalNaturalScienceFoundationofChina(GrantNos:10371118,90411009).; A high-order finite difference Pade scheme also called compact scheme for solving Korteweg-de Vries （KdV） equations, which preserve energy and mass conservations, was developed in this paper. This structure-preservi...; 关键词：Korteweg-de Vries （KdV） equation compact finite difference scheme solitory waves high order

HIGH-ORDER