国家自然科学基金(40372121)

作品数：8被引量：43H指数：2
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OSCILLATION OF NONLINEAR DELAY DIFFERENCE EQUATIONS
《Annals of Differential Equations》2006年第3期374-377,共4页Wang Xiaomei Liu Anping Liu Keying Liu Jing ( School of Math, and Physics, China University of Geosciences, Wuhan 430074 School of Math, and Statistics, Wuhan University, Wuhan 430078) 
This work is supported by the National Natural Science Foundation of China (No.40373003, 40372121) and CUGQNL0616, 0517.
This paper deals with the oscillatory properties of a class of nonlinear difference equations with several delays. Sufficient criteria in the form of infinite sum for the equations to be oscillatory are obtained.
关键词：OSCILLATION NONLINEAR delay difference equations 
OSCILLATION OF CERTAIN NONLINEAR ADVANCED DIFFERENCE EQUATIONS
《Annals of Differential Equations》2006年第1期33-39,共7页Liu Keying Liu Anping Liu Ting 
This work is supported by National Natural Science Foundation of China (No.40373003, 40372121) ;CUGQNL0517.
This paper deals with the oscillatory properties of a class of nonlinear advanced difference equations. Sufficient criteria in the form of infinite sum for the equation to be oscillatory are obtained. In the linear ca...
关键词：OSCILLATION NONLINEAR advanced difference equations 
Oscillation of Solutions of Nonlinear Neutral Parabolic Differential Equations被引量：1
《Chinese Quarterly Journal of Mathematics》2005年第4期342-349,共8页刘克英  徐少贤  刘安平  
Supported by the National Natural Science Foundation of China(40373003, 40372121);Supported by the Youth Foundation of Cina University of Geosciences(CUGQNL0517)
This paper deals with the oscillatory properties of a class of nonlinear neutralparabolic partial differential equations with several delays. Sufficient criteria for the equa-tion to be oscillatory are obtained by mak...
关键词：OSCILLATION DELAY PARABOLIC NONLINEAR 
OSCILLATION OF NONLINEAR IMPULSIVE PARABOLIC DIFFERENTIAL EQUATION WITH SEVERAL DELAYS
《Annals of Differential Equations》2005年第3期286-289,共4页Guo Yanfeng Liu Anping Yang Xianghui Wang Xiaomei 
This work is supported by National Natural Science Foundation of China (40373003 and 40372121) and by CUGQNL0517.
In this paper, oscillatory properties for solutions of certain nonlinear impulsive parabolic equation are investigated and a series of new sufficient conditions is established.
关键词：IMPULSE DELAY parabolic equation OSCILLATION NONLINEAR 
OSCILLATION OF NONLINEAR HYPERBOLIC DIFFERENTIAL EQUATION WITH IMPULSES
《Annals of Differential Equations》2005年第3期465-468,共4页Xiao Li Liu Ting Liu Anping Li Yanling 
Supported by National Natural Science Foundation of China (No.40372121 and 40373003) and by CUGQNL0517.
In this paper, oscillatory properties of solutions for nonlinear impulsive hyperbolic differential equation are investigated and some new sufficient conditions are established.
关键词：IMPULSE hyperbolic equation oscillation nonlinear 
南水北调中线水源工程丹江口水库坍岸问题浅析被引量：2
《地质科技情报》2005年第B07期156-159,共4页黄振伟 李云安 黄胜华 
国家自然科学基金资助项目(40372121)
南水北调中线水源工程大坝加高后,丹江口库区内的部分库段在库水作用下易发生坍岸问题。为了预测水库坍岸范围和发生坍岸的难易程度,对丹江口水库的地形、地质条件和坍岸的影响因素和型式进行了分析。在此基础上,通过大量的调查,采取工...
关键词：丹江口水库 坍岸 机制分析 预测方法 难易程度分级 
OSCILLATION OF NONLINEAR IMPULSIVE PARABOLIC DIFFERENTIAL EQUATIONS WITH SEVERAL DELAYS被引量：20
《Annals of Differential Equations》2005年第1期1-7,共7页CuiChenpei ZouMin LiuAnping XiaoLi 
This work is supported by National Natural Science Foundation of China (40373003 and 40372121).
In this paper, oscillatory properties for solutions of certain nonlinear impulsive parabolic equations with several delays are investigated and a series of new sufficient conditions for oscillations of the equation ar...
关键词：IMPULSE DELAY parabolic differential equation OSCILLATION NONLINEAR 
岩-土-混凝土破坏准则及其强度参数估算被引量：20
《岩石力学与工程学报》2004年第5期770-776,共7页李云安 葛修润 糜崇蓉 张鸿昌 
中国博士后基金(B3277A);国家自然科学基金(40372121)资助项目。
简述了岩-土-混凝土材料的破坏准则。在柔性桩复合地基、主动和(或)被动侧土体加固基坑、重力式挡墙边坡和滑坡等进行数值模拟工作中,岩-土-混凝土的强度参数估算是必不可少的环节。在二维应力和三维应力状态分别与莫尔-库仑斜直线和莫...
关键词：岩-土-混凝土 柔性桩 复合地基 数值模拟 混凝土结构 
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