云南高校图书馆联盟文献共享服务平台- ILU

ILU: 作品数：32被引量：67H指数：6; 导出分析报告; 相关领域：理学医药卫生更多>>; 相关作者：迟学斌刘兴平谷同祥徐立王骥更多>>; 相关机构：电子科技大学北京应用物理与计算数学研究所中国科学院中国科学院软件研究所更多>>; 相关期刊：《Acta Mathematicae Applicatae Sinica》《Communications in Computational Physics》《应用数学和力学》《Agricultural Biotechnology》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国家高技术研究发展计划秦皇岛市科学技术研究与发展计划课题更多>>

基于顶点中心有限元算法的重力场矢量和重力梯度张量高精度模拟: 《Journal of Central South University》2024年第5期1659-1670,共12页童孝忠孙娅黄基文柳建新; Project(42274083) supported by the National Natural Science Foundation of China;Project(2023JJ30659) supported by Hunan Provincial Natural Science Foundation of China。; 密度非均质性引起的重力异常由三维泊松方程控制,而目前大多数正演模拟方法都依赖于其积分解和以单元为中心的数值方法。当利用重力位计算重力场时,这些数值策略将不可避免地失去准确性。为了缓解这一问题,本文提出了一种高效、准确的...; 关键词：重力异常三维泊松方程顶点中心有限元算法数值模拟 ILU-BICGSTAB迭代法

ITERATIVE ILU PRECONDITIONERS FOR LINEAR SYSTEMS AND EIGENPROBLEMS: 《Journal of Computational Mathematics》2021年第4期633-654,共22页Daniele Boffi Zhongjie Lu Luca F.Pavarino; The authors are members of the INdAM Research group GNCS and their research is partially supported by IMATI/CNR,by PRIN/MIUR and the Dipartimenti di Eccellenza Program 2018-22-Dept,of Mathematics,University of Pavia.; Iterative ILU factorizations are constructed,analyzed and applied as preconditioners to solve both linear systems and eigenproblems.The computational kernels of these novel Iterative ILU factorizations are sparse matr...; 关键词：Iterative ILU factorization Matrix-matrix multiplication Fill-in Eigenvalue problem Parallel preconditioner

Helmholtz Solving and Performance Optimization in Global/Regional Assimilation and Prediction System被引量：2: 《Tsinghua Science and Technology》2021年第3期335-346,共12页Jianqiang Huang Wei Xue Haodong Bian Wenxin Yan Xiaoying Wang Wenguang Chen; partially supported by the Open Project of State Key Laboratory of Plateau Ecology and Agricuture,Qinghai University(No.2020-ZZ-03);the Qinghai Province High-End Innovative Thousand Talents Program Leading Talents;the National Natural Science Foundation of China(Nos.61762074 and 61962051);the National Natural Science Foundation of Qinghai Province(No.2019-ZJ-7034)。; Despite efficient parallelism in the solution of physical parameterization in the Global/Regional Assimilation and Prediction System(GRAPES),the Helmholtz equation in the dynamic core,with the increase of resolution,c...; 关键词：Global/Regional Assimilation and Prediction System(GRAPES) Helmholtz equation Generalized Conjugate Residual(GCR) performance optimization Incomplete LU(ILU)

Evaluation of different Krylov subspace methods for simulation of the water faucet problem: 《Nuclear Science and Techniques》2021年第5期1-16,共16页Hong-Yang Wei Kevin Briggs Victor Quintanilla Yi-Tung Chen; In this study,a one-dimensional two-phase flow four-equation model was developed to simulate the water faucet problem.The performance of six different Krylov subspace methods,namely the generalized minimal residual(GM...; 关键词：Water faucet problem Krylov subspace methods ILU preconditioner

Study on the Suitability of Soils in Ilu Aba Bora Zone for Hydraform Block Production for Low Cost Construction: 《Journal of Building Material Science》2021年第1期37-42,共6页Beneyam Neguse Furgasa Fadilu Shafi Jote Natnael Bekele Tilahun; Due to high construction material cost in Ethiopia,it is difficult to afford a shelter for most people.The hydra form block(HFB)has been identified as low-cost building material with its potential and possibility to r...; 关键词：Hydra form block Compressive strength Cost comparison Cement Water absorption

An investigation on HOBEM in evaluating ship wave of high speed displacement ship被引量：1: 《Journal of Hydrodynamics》2019年第3期531-541,共11页Xi Chen Ren-chuan Zhu Ya-lan Song Ju Fan; National Natural Science Foundation of China(Grant Nos.51479117,51579147);the National Key Basic Research Development Program of China(973 Program,Grant No.2014CB046203).; A practical numerical tool is developed to evaluate ship waves of high speed displacement ships on the basis of potential flow theory, in which high order boundary element method (HOBEM) based on biquadratic shape fun...; 关键词：High speed SHIP SHIP WAVES HOBEM ILU-GMRES SINKAGE and TRIM

JFNK求解高温气冷堆中子扩散问题的预处理方法研究被引量：2: 《原子能科学技术》2018年第2期307-313,共7页卢佳楠郭炯李富; 预处理方法是非线性求解方法JFNK中效率和数值收敛特性的关键。基于包括活性区、石墨反射层和外围含硼碳砖在内的高温气冷堆堆芯中子扩散本征值问题,对JFNK求解过程中的预处理环节进行了研究。根据矩阵元素的物理性质简化得到不同的近...; 关键词：高温气冷堆中子扩散 JFNK ILU SIPLU

基于ILU-BICGSTAB算法的起伏地形MT二维正演模拟被引量：1: 《物探化探计算技术》2017年第3期306-312,共7页郭胜男熊彬罗天涯吴延强陈欣; 国家自然科学基金(41164004;41674075);广西自然科学基金(2016GXNSFA038004;2013GXNSFAA019277);广西壮族自治区桂林市"漓江学者"(2013)专项;桂林理工大学研究生创新项目(BS201601); 针对起伏地形对异常体的探测效果的影响,利用有限单元法,基于MTLAB平台编写了大地电磁二维正演程序,为更好地模拟实际地形,采用矩形网格中进一步三角细化的剖分方式,并利用不完全LU分解的预条件BICGSTAB算法提高计算速度与精度,最后通...; 关键词：大地电磁有限单元起伏地形正演

PCR Detection of Pilus-associated Genes and Serotype Identification of Pathogenic Escherichia coli Isolated from Chickens in the Jidong Area: 《Agricultural Biotechnology》2016年第2期43-45,共3页Qiumei SHI Yanying ZHANG Xiumin WANG Baoxin YANG Zhiqiang ZHANG Xiaojiao Hou Xinhua SHAO Xia MENG Yang YANG Guoqiang ZHU; Supported by National Natural Science Foundation of China(31072136);Agricultural Science and Technology Achievement Transformation Project of the Ministry of Science and Technology of China(2012GB2A200044);Project of Shijiazhuang Municipal Science and Technology Bureau(11150093A); [ Objective] This study aimed to explore the presence of type I pill （fimC gene） and P pill （papC gene） and identify the serotype of pathogenic E. coli isolated from chickens in the Jidong Area. [ Method] Type I p...; 关键词：CHICKEN Escherichia coli SEROTYPE PILI

Interaction of Land Demand and Supply Effects in Intensive Land Use: a Simulation Study for Chengdu,China: 《Journal of Donghua University(English Edition)》2015年第4期636-641,共6页辜寄蓉陈先伟江浏光艳杨海龙于有翔; Hundred-Talent Program of Ministry of Land and Resources,China; Intensive land use( ILU) policies affect the demand and supply of land. These policies promote efficient land use, and demands for land must therefore be evaluated in terms of the level of land-use intensity. If the d...; 关键词：land demand and supply intensive land use(ILU) developable land land area system dynamics(SD)

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