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APPROXIMATE: 作品数：556被引量：745H指数：10; 导出分析报告; 相关领域：理学更多>>; 相关作者：阮宇肖国生李俊清吕佳杨维更多>>; 相关机构：吉林大学南京航空航天大学浙江大学合肥工业大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金国家高技术研究发展计划更多>>

Improved Approximate Minimum Degree Ordering Method and Its Application for Electrical Power Network Analysis and Computation被引量：1: 《Tsinghua Science and Technology》2021年第4期464-474,共11页Jian Guo Hong Liang Songpu Ai Chao Lu Haochen Hua Junwei Cao; supported in part by the National Key Basic Research and Development Program of China(No.2017YFE0132100);the Tsinghua-Toyota Research Fund(No.20203910016);the BNRist Program(No.BNR2020TD01009)。; Electrical power network analysis and computation play an important role in the planning and operation of the power grid,and they are modeled mathematically as differential equations and network algebraic equations.Th...; 关键词：Approximate Minimum Degree and Minimum Length(AMDML) electrical power network analysis elimination tree numerical solution ordering method

A computational framework for Karl Popper's logic of scientific discovery: 《Science China(Information Sciences)》2018年第4期91-100,共10页Wei LI Yuefei SUI; supported by National Basic Research Program of China(973 Program)(Grant No.2005CB321901);Open Fund of the State Key Laboratory of Software Development Environment(Grant No.SKLSDE-2010KF-06);Beijing University of Aeronautics and Astronautics; Belief revision is both a philosophical and logical problem. From Popper＇s logic of scientific discovery, we know that revision is ubiquitous in physics and other sciences. The AGM postulates and Rcalculus are approa...; 关键词：belief revision logic of scientific discovery approximate deduction approximation algorithms feasible computation

Computing the Determinant of a Matrix with Polynomial Entries by Approximation: 《Journal of Systems Science & Complexity》2018年第2期508-526,共19页QIN Xiaolin SUN Zhi LENG Tuo FENG Yong; supported by China 973 Project under Grant No.2011CB302402;the National Natural Science Foundation of China under Grant Nos.61402537,11671377,91118001;China Postdoctoral Science Foundation funded project under Grant No.2012M521692; Computing the determinant of a matrix with the univariate and multivariate polynomial entries arises frequently in the scientific computing and engineering fields. This paper proposes an effective algorithm to compute...; 关键词：Approximate interpolation dimension reduction error controllable algorithm symbolicdeterminant Vandermonde systems.

Large-scale OPF Based on Voltage Grading and Network Partition被引量：1: 《CSEE Journal of Power and Energy Systems》2016年第2期56-61,共6页Yude Yang Zhongbiao Wu Yiyi Zhang Hua Wei; supported by National Basic Research Program of China(973 Program)under Grant 2013CB228205;National Natural Science Foundation of China under Grant 51541707.; In this paper,a model of a large-scale optimal power flow(OPF)under voltage grading and network partition and its algorithm is presented.Based on the principles of open loop operations,the node injecting current metho...; 关键词：Improved approximate Newton direction method large-scale power network node injecting current method optimal power flow voltage grading and network partition

From phenomena of synchronization to exact synchronization and approximate synchronization for hyperbolic systems被引量：3: 《Science China Mathematics》2016年第1期1-18,共18页LI TaTsien; supported by National Basic Research Program of China(Grant No.2013CB834100);National Natural Science Foundation of China(Grant No.111211101); In this survey paper, the synchronization will be initially studied for infinite dimensional dynamical systems of partial differential equations instead of finite dimensional systems of ordinary differential equations...; 关键词：SYNCHRONIZATION exact boundary synchronization approximate boundary synchronization cou- pled system of wave equations Dirichlet boundary controls

Approximate-model Based Estimation Method for Dynamic Response of Forging Processes被引量：2: 《Chinese Journal of Mechanical Engineering》2015年第3期565-572,共8页LEI Jie LU Xinjiang LI Yibo HUANG Minghui ZOU Wei; Supported by National Basic Research Program of China(973 Program,Grant No.2011CB706802);National Natural Science Foundation of China(Grant No.51205420);Program for New Century Excellent Talents in University of China(Grant No.NCET-13-0593);Hunan Provincial Natural Science Foundation of China(Grant No.14JJ3011); Many high-quality forging productions require the large-sized hydraulic press machine（HPM） to have a desirable dynamic response. Since the forging process is complex under the low velocity, its response is difficult...; 关键词：performance analysis forging process MODELING hydraulic press machine

Stationary flow fields prediction of variable physical domain based on proper orthogonal decomposition and kriging surrogate model被引量：10: 《Chinese Journal of Aeronautics》2015年第1期44-56,共13页Qiu Yasong Bai Junqiang; supported by the National Basic Research Program of China(No.2014CB744804); In this paper a new flow field prediction method which is independent of the governing equations, is developed to predict stationary flow fields of variable physical domain. Predicted flow fields come from linear supe...; 关键词：projection iterative constraints iteration approximate superposition ranking viscosity stationary interpolation

Solitary wave solutions to higher-order traffic flow model with large diffusion: 《Applied Mathematics and Mechanics(English Edition)》2014年第2期167-176,共10页菅肖霞张鹏 S.C.WONG 乔殿梁崔岐柱; supported by the National Natural Science Foundation of China(Nos.11072141 and11272199);the National Basic Research Program of China(No.2012CB725404);the Shanghai Program for Innovative Research Team in Universities;the Research Grants Council of the Hong KongSpecial Administrative Region,China(No.HKU7184/10E);the National Research Foundationof Korea(MEST)(No.NRF-2010-0029446); This paper uses the Taylor expansion to seek an approximate Korteweg- de Vries equation （KdV） solution to a higher-order traffic flow model with sufficiently large diffusion. It demonstrates the validity of the appr...; 关键词：higher-order traffic flow model viscosity coefficient approximate Korteweg-de Vries equation （KdV） solution finite element scheme

Lazy Slicing for State-Space Exploration被引量：1: 《Journal of Computer Science & Technology》2012年第4期872-890,共19页黄少滨黄宏涛陈志远吕天阳张涛; Supported by the National Natural Science Foundation of China under Grant No. 60873038;the National Key Technology Research and Development Program of the Ministry of Science and Technology of China under Grant Nos. 2009BAH42B02 and 2012BAH08B02; CEGAR （Counterexample-guided abstraction refinement）-based slicing is one of the most important techniques in reducing the state space in model checking. However, CEGAR-based slicing repeatedly explores the state sp...; 关键词：counterexample-guided abstraction refinement spurious counterexample over-approximate slicing local refinement lazy slicing

Approximate Similarity Reduction for Perturbed Kaup-Kupershmidt Equation via Lie Symmetry Method and Direct Method: 《Communications in Theoretical Physics》2010年第11期797-802,共6页刘希忠; Supported by the National Natural Science Foundation of China under Grant Nos.10735030,10475055,10675065,and 90503006;National Basic Research Program of China (973 Program 2007CB814800); The perturbed Kaup-Kupershmidt equation is investigated in terms of the approximate symmetry perturbationmethod and the approximate direct method.The similarity reduction solutions of different orders are obtainedfor ...; 关键词：perturbed Kaup-Kupershmidt equation approximate symmetry perturbation method approxi-mate direct reduction method series reduction solutions

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