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检索条件"机构=Hunan Key Laboratory for Computation & Simulation in Science and Engineering"
474 条 记 录,以下是251-260 订阅
排序:
Tilt grain boundaries of hexagonal structures: a spectral viewpoint
arXiv
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arXiv 2021年
作者: Jiang, Kai Si, Wei Xu, Jie School of Mathematics and Computational Science Hunan Key Laboratory for Computation and Simulation in Science and Engineering Xiangtan University Xiangtan Hunan411105 China Chinese Academy of Sciences Beijing China
We propose a spectral viewpoint for grain boundaries that are generally quasiperiodic. To accurately capture the spectra computationally, it is crucial to adopt the projection method for quasiperiodic functions. Armed... 详细信息
来源: 评论
Svgd: A Virtual Gradients Descent Method for Stochastic Optimization
arXiv
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arXiv 2019年
作者: Li, Zheng Shu, Shi School of Mathematics and Computational Science Xiangtan University Xiangtan Hunan411105 China Hunan Key Laboratory for Computation and Simulation in Science and Engineering Xiangtan University Xiangtan411105 China
Inspired by dynamic programming, we propose Stochastic Virtual Gradient Descent (SVGD) algorithm where the Virtual Gradient is defined by computational graph and automatic differentiation. The method is computationall... 详细信息
来源: 评论
Two-level additive preconditioners for edge element discretizations of time-harmonic Maxwell equations
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Computers & Mathematics with Applications 2013年 第4期66卷 432-440页
作者: Liuqiang Zhong Chunmei Liu Shi Shu School of Mathematical Sciences South China Normal University Guangzhou 510631 China Department of Mathematics and Computational Science Hunan University of Science and Engineering Yongzhou 425199 China Hunan Key Laboratory for Computation and Simulation in Science and Engineering Xiangtan University Xiangtan 411105 China
Two-level additive preconditioners are presented for edge element discretizations of time-harmonic Maxwell equations. The key is to construct a special “coarse mesh” space, which adds the kernel of the curl -operato... 详细信息
来源: 评论
Free vibration exploration of axially functionally graded carbon nanotube-reinforced beams through an innovative perturbative methodology  3
Free vibration exploration of axially functionally graded ca...
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2024 3rd International Conference on Aerospace, Aerodynamics and Mechatronics engineering, AAME 2024
作者: Chen, Chen Zhou, Lilin Ye, Tianyu Li, Daokui College of Aerospace Science and Engineering National University of Defense Technology Hunan Changsha410073 China Hunan Key Laboratory of Intelligent Planning and Simulation for Aerospace Missions Hunan Changsha410073 China Aviation Engineering Institute Civil Aviation Flight University of China Sichuan Guanghan618307 China
Axially functionally graded (AFG) carbon nanotube-reinforced composite (CNTRC) emerges as a promising solution for tailoring the stiffness and strength of various beam-like structures. Applications range from optimizi... 详细信息
来源: 评论
High-density/efficient surface active sites on modified separators to boost Li-S batteries via atomic Co^(3+)-Se termination
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Nano Research 2022年 第8期15卷 7199-7208页
作者: Shujie Liu Xiaofei Liu Manfang Chen Dong Wang Xin Ge Wei Zhang Xiyang Wang Chunhui Wang Tingting Qin Haozhe Qin Liang Qiao Dan Zhang Xing Ou Weitao Zheng Key Laboratory of Automobile Materials of MOE School of Materials Science and Engineeringand Electron Microscopy Centerand International Center of Future ScienceJilin UniversityChangchun 130013China Key Laboratory of Materials Design and Quantum Simulation College of ScienceChangchun UniversityChangchun 130022China National Base for International Science&Technology Cooperation School of ChemistryXiangtan UniversityXiangtan 411105China State Key Laboratory of Chem/Bio-Sensing and Chemometrics Advanced Catalytic Engineering Research Center of the Ministry of EducationCollege of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082China Department of Mechanical and Mechatronics Engineering University of WaterlooWaterlooN2L 3G1Canada School of Metallurgy and Environment Central South UniversityChangsha 410083China
Various and critical electrocatalytic processes are involved during the redox reactions in the Li-S batteries,which extremely depend on the surface structure and chemical ***,single-atom concept unlocks a route to max... 详细信息
来源: 评论
Investigation on a quantum algorithm for linear differential equations
arXiv
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arXiv 2024年
作者: Dong, Xiaojing Peng, Yizhe Tang, Qili Yang, Yin Yu, Yue Hunan Key Laboratory for Computation and Simulation in Science and Engineering Key Laboratory of Intelligent Computing and Information Processing of Ministry of Education National Center for Applied Mathematics in Hunan School of Mathematics and Computational Science Xiangtan University Hunan Xiangtan411105 China
Ref. [BCOW17] introduced a pioneering quantum approach (coined BCOW algorithm) for solving linear differential equations with optimal error tolerance. Originally designed for a specific class of diagonalizable linear ... 详细信息
来源: 评论
Preconditioners for higher order edge finite element discretizations of Maxwell's equations
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science China Mathematics 2008年 第8期51卷 1537-1548页
作者: ZHONG LiuQiang1,2,SHU Shi1,2,SUN DuDu3&TAN Lin4 1School of Mathematical and computational sciences,Xiangtan University,Xiangtan 411105,China 2hunan key laboratory for computation and simulation in science and engineering,Xiangtan 411105,China 3Institute of computational Mathematics and Scientific/engineering Computing,Academy of Mathematicsand Systems science,Graduate University of Chinese Academy of sciences,Chinese Academy sciences,P.O.Box 2719,Beijing 100190,China 4Department of Math-Physics,Nanhua University,Hengyang 421001,China 1. School of Mathematical and Computational Sciences Xiangtan University Xiangtan 411105 China 2. Hunan Key Laboratory for Computation and Simulation in Science and Engineering Xiangtan 411105 China 3. Institute of Computational Mathematics and Scientific/Engineering Computing Academy of Mathematics and Systems Science Graduate University of Chinese Academy of Sciences Chinese Academy Sciences P.O. Box 2719 Beijing 100190 China 4. Department of Math-Physics Nanhua University Hengyang 421001 China
In this paper,we are concerned with the fast solvers for higher order edge finite element discretizations of Maxwell's *** present the preconditioners for the first family and second family of higher order N′ed′... 详细信息
来源: 评论
A two-dimensional GeSe/SnSe heterostructure for high performance thin-film solar cells
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Journal of Materials Chemistry A 2019年 第18期7卷 11265-11271页
作者: Yuliang Mao Congsheng Xu Jianmei Yuan Hongquan Zhao Hunan Key Laboratory for Micro-Nano Energy Materials and Devices School of Physics and Optoelectronics Xiangtan University Hunan 411105 China Hunan Key Laboratory for Computation and Simulation in Science and Engineering School of Mathematics and Computational Science Xiangtan University Hunan 411105 China Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences Chongqing 401120 China
Based on the first-principles calculations, we demonstrated that a GeSe/SnSe heterostructure has type-II band alignment and a direct band gap, which can effectively prevent the recombination of photogenerated electron...
来源: 评论
The grad-div conforming virtual element method for the quad-div problem in three dimensions
arXiv
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arXiv 2024年
作者: Dong, Xiaojing Han, Yibing Huang, Yunqing Hunan Key Laboratory for Computation and Simulation in Science and Engineering Key Laboratory of Intelligent Computing & Information Processing of Ministry of Education School of Mathematics and Computational Science Xiangtan University Er huan Road Hunan Xiangtan411105 China
We propose a new stable variational formulation for the quad-div problem in three dimensions and prove its well-posedness. Using this weak form, we develop and analyze the H(grad-div)-conforming virtual element method... 详细信息
来源: 评论
Influences of interpretations of boundary conditions on nonlinear finite element analysis of a concrete column under near-field blast loading  7
Influences of interpretations of boundary conditions on nonl...
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2022 7th International Conference on Information science, Computer Technology and Transportation, ISCTT 2022
作者: Xu, Jie Hendriks, Max A.N. Rots, Jan G. Tsouvalas, Apostolos College of Aerospace Science and Engineering National University of Defense Technology Hunan Changsha410073 China Hunan Key Laboratory of Intelligent Planning and Simulation for Aerospace Missions Hunan Changsha410073 China Faculty of Civil Engineering and Geosciences Delft University of Technology Zuid Holland Delft2628 CN Netherlands
Due to the accompanying severe consequences of explosions, the blast puts a great threat to public security. Nonlinear finite element analysis is a possible method for civil engineers to check the integrity of the str... 详细信息
来源: 评论