云南高校图书馆联盟文献共享服务平台- HILL

HILL: 作品数：480被引量：868H指数：13; 导出分析报告; 相关作者：万卫星谢嵘李元秦丽祖艳群更多>>; 相关机构：中国科学院华南理工大学浙江师范大学华东师范大学更多>>; 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国家高技术研究发展计划中国科学院知识创新工程重要方向项目更多>>

Optimal control approach to stability criteria on Hill's equations被引量：1: 《Applied Mathematics(A Journal of Chinese Universities)》2018年第3期253-273,共21页ZU Jian LI Yong; supported by NSFC(11401089,11671071);the Scientific Technological Project of Jilin Province’s Education Department in Thirteenth Five-Year(JJKH20170535KJ);supported by NSFC(11571065);the National Basic Research Program of China(2013CB834102); This paper gives a tutorial on how to prove Lyapunov type criteria by optimal control methods. Firstly, we consider stability criteria on Hill’s equations with nonnegative potential. By optimal control methods develo...; 关键词：stability criteria optimal control method Hill's equation Lyapunov inequality

Grain refinement and macrosegregation behavior of direct chill cast Al-Zn-Mg-Cu alloy under combined electromagnetic fields被引量：1: 《China Foundry》2015年第5期333-338,共6页Yu-bo Zuo Xu-dong Liu Chao Sun Sen-sen Yuan Dan Mou Zhan-zhi Li Jian-zhong Cui; supported by the National Natural Science Foundation of China(51374067);the Outstanding Young Scholars'Growth Plan in the Colleges and Universities of Liaoning Province(LJQ2014032);the National Basic Research Program of China(2012CB619506); The combined electromagnetic fields were achieved by the application of an alternating magnetic field and a stationary magnetic field and were used during direct chill(DC) casting process to control the microstructure...; 关键词：Al-Zn-Mg-Cu alloy electromagnetic field DC casting microstructure MACROSEGREGATION

基于非相干散射雷达和GPS观测研究Millstone Hill地区等离子体层电子含量被引量：11: 《地球物理学报》2013年第3期738-745,共8页种小燕张满莲张顺荣温晋刘立波宁百齐万卫星; 院重点部署项目(KZZD-EW-01-3);国家自然科学基金(NSFC 41274163;40890164);国家重点基础研究发展计划(973计划)(2012CB825604);国家自然科学基金(NSFC 41131066;40974090)资助; 本文尝试结合非相干散射雷达和GPS TEC观测数据提取等离子体层总电子含量(PTEC).我们首先描述所用的技术方法,然后具体利用了Millstone Hill台站的观测数据研究该地区上空等离子体层总电子含量(PTEC)的变化情况.我们采用变化标高的Chap...; 关键词：TEC 等离子体层非相干散射雷达 GPSTEC 电离层

Fractal dimension of coal particles and their CH_4 adsorption被引量：7: 《International Journal of Mining Science and Technology》2012年第6期845-848,共4页Wang Chengyang Hao Shixiong Sun Wenjing Chu Wei; funded by the State Key Basic Research Program of China(No.2011CB201202); We describe the fractal analysis of three differently sized coal samples(0.350-0.833 mm,0.245-0.350 mm,and 0.198-0.245 mm).The influence of fractal dimension on CH 4 adsorption capacity is investigated.The physical pa...; 关键词：Coal FRACTAL DIMENSION Frenkel-Halsey-Hill Brunauer-Emmett-Teller ADSORPTION ISOTHERM

Niao Chao Hill——Study of supporting techniques for China’s first international undersea feature name: 《Science China Earth Sciences》2012年第10期1588-1591,共4页TAO ChunHui LI ShouJun SONG ChengBing CHENG YongShou YANG ChunGuo HE YongHua ZHOU Yang DENG XianMing GAO JinYao QIU Lei; supported by National Basic Research Program of China(Grant No. 2012CB417305);China Ocean Mineral Resources Research and Development Association Program (Grant No. DY115-02-1-01);Public Science and Technology Research Funds Projects of Ocean (Grant No.201205004);State Oceanic Administration Youth Science Fund (Grant No.2010319);Scientific Research Fund of Second Institute of Oceanography (Grant No. JG1105); In recent years, Sub-Committee on Undersea Feature Names （SCUFN） has been conducting deliberations on naming undersea features that are entirely or mainly （more than 50%） outside the external limits of the territo...; 关键词：国际海底配套技术名称中国委员会联合国海外地物

梯度增强Cosserat连续体的广义Hill定理被引量：3: 《计算力学学报》2011年第6期813-820,832,共9页李锡夔张俊波张雪; 国家自然科学基金(90715011;10672033);国家973(2010CB731502)资助项目; 基于经典Cauchy连续体的Hill定理,在平均场理论的框架下导出了梯度增强Cosserat连续体细、宏观均匀化方法的广义Hill定理。在梯度增强Cosserat连续体中,不仅宏观样条点上的应变和应力张量,而且它们的梯度均作用于与该样条点相关联的细...; 关键词：Hill定理 Hill—Mandel条件梯度增强Cosserat连续体平均场理论 RVE边界条件

Direct-chill semi-continuous casting process of three-layer composite ingot of 4045/3004/4045 aluminum alloys被引量：6: 《Transactions of Nonferrous Metals Society of China》2011年第8期1692-1697,共6页蒋会学张海涛秦克崔建忠; Project (2005CB623707) supported by the National Basic Research Program of China; Three-layer composite ingot of 4045/3004/4045 aluminum alloys was prepared by direct-chill semi-continuous casting process,the temperature field distribution near the composite interface,macro-morphology,microstructur...; 关键词：aluminum alloys three-layer composite ingot direct-chill semi-continuous casting composite interface structures properties

Direct-chilling casting of Mg alloy under electromagnetic and ultrasonic combined field被引量：2: 《Transactions of Nonferrous Metals Society of China》2010年第B07期297-305,共9页崔建忠张志强乐启炽; Projects(2007CB613701, 2007CB613702) supported by the National Basic Research Program of China;Projects(50974037, 50904018) supported by the National Natural Science Foundation of China;Project(NCET-08-0098) supported by New Century Excellent Talents in Chinese University;Project(N90209002) supported by the Special Foundation for Basic Scientific Research of Central Colleges; The effects of low frequency electromagnetic (LFEC) field and ultrasonic (US) field on the microstructures, macrosegregation of alloying elements and the mechanical properties of DC cast AZ80 alloy were studied. The r...; 关键词：low frequency electromagnetic field ultrasonic field Mg alloy DC casting

A version of Hill's lemma for Cosserat continuum被引量：3: 《Acta Mechanica Sinica》2009年第4期499-506,共8页Xikui Li Qipeng Liu; supported by the National Natural Science Foundation of China (90715011, 10672033 and 10590354); the National Key Basic Research and Development Program (2002CB412709); the Australia Research Council through the ARC International Fellowship Offered at University of Newcastle (LX0666274); On the basis of Hill＇s lemma for classical Cauchy continuum, a version of Hill＇s lemma for micro-macro homogenization modeling of heterogeneous Cosserat continuum is presented in the flame of average-field theory. T...; 关键词：Hill＇s lemma Hill-Mandel condition Cosserat continuum Average-field theory RVE boundary conditions

Study of Debond Fracture Toughness of Sandwich Composites with Metal Foam Core被引量：1: 《Journal of Materials Science & Technology》2009年第5期713-716,共4页Xinzhu Wang Linzhi Wu Shixun Wang; supported by the Major State Basic Research Development Program of China(973Program)under the contract No.2006CB601206; Two types of experiments were designed and performed to evaluate the adhesive bond in metal foam composite sandwich structures. The tensile bond strength of face/core was determined through the flatwise tensile test ...; 关键词：Interfacial fracture toughness Strain energy release rate Tsai-Hill failure criterion Cohesive zone model

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