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The Fault-tolerant Stability for Uncertain Linear Large-scale Generalized Systems with Time-Delays Based on State Observer

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The Fault-tolerant Stability for Uncertain Linear Large-scal...

第二十九届中国控制会议

作者： YANG Zhanmin Dept.of Science and Technology,nanjing Institute of Industry Technology,nanjing 210046,P.R.China

The problem of fault-tolerant control is considered for a class of uncertain continuous Large-scale generalized systems with time-delays by using Lyapunov method in this *** interconnected matrices can be uncertain and are assumed to be *** time-delays under consideration can be arbitrary unknown and varying but *** analysis result of robust control is obtained for the system based on state observer which is quadratic stabilizability and given a linear immemorial state feedback from interference input to control *** less delay-dependent sufficient robust fault-tolerant stability conditions for these systems in terms of linear matrix inequalities（LMI）are *** on this,the fault-tolerant controller and the state observer of this system is designed.

关键词： Large-scale generalized systems Fault-tolerant Lyapunov method Linear matrix inequalities(LMI) Time-delays

TWO METHODS FOR ASSESSMENT OF RESIDUAL LIFE OF HK-40 FURNACE TUBES

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Acta Metallurgica Sinica(English Letters) 1999年第1期12卷 108-115页

作者： F.Z. Shen. G.X. Ma and X. Ling nanjing University of Chemical Technology, nanjing 210009, China X. Yang Jing Ling Petrochemical Corporation, nanjing 210046, China X.Z. Zhang, J. Ruan and Y. Lu Lutianhua Group Incorporated, Luzhou 646300, China

Two methods for predicting residual life of high temperature furnace tubes are studied. One is testanalysis method that is mainly based on the creep rupture tests on postservice specimens. Specimens were taken from the tubes, which had been in service for different times. KachanovRobinsons damage summation concept is employed, however with a modified factor K(ts) to account for prior damage in the specimens. If the foregone total life corresponds with real condition, all of the test data modified by K(ts) should be distributed uniformly nearby the master curve of the new material. The other iscomputer simulation method that considers all of the operating conditions that influence the life. The finite element method (FEM) with iterative calculation is used in the analysis. The variation rates of critical damage element along the wall thickness are determined as a function of the service temperature and current damage. A special program designed based on the method predicts well the residual life of furnace tubes, so long as the maximum depth of critical damage in radius direction of tubes has been detected by ultrasonic techniques.

关键词： residual life assessment HK-40 damage,creep furnace tube

CtoC电子商务站点中的Web个性化推荐技术

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图书情报工作 2009年第8期53卷 134-137,80页

作者：李树青南京财经大学信息工程学院信息管理系南京210046

分析CtoC电子商务平台中的用户行为特征,提出在此类站点中实施Web个性化推荐技术的基本原则和特点,并指出该种技术的三个明显特点。最后,结合Web个性化推荐技术的三种主要流程,对CtoC电子商务平台实施Web个性化推荐技术的方法作详细说明。

关键词： CtoC Web站点个性化推荐技术

Adsorption of Phytic Acids on Magnetic Ion-exchange Resin and the Effect of NO3- on Their Removal

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Adsorption of Phytic Acids on Magnetic Ion-exchange Resin an...

持久性有机污染物论坛2011暨第六届持久性有机污染物全国学术研讨会

作者： Yan Ma~b,Ying Meng~b,Danning Jiang~b,Jinnan Wang~(a,b,*),Aimin Li~(a,b) (a State Key Laboratory of Pollution Control and Resource Reuse,nanjing,210046,China b School of the Environment,nanjing University,nanjing,210046,China

Phytic substances are present in environment as a result of the decomposition of plant biomass,thus they are the components of natural dissolved organic matter(DOM) in natural *** acid(TA) and gallic acid(GA) are two of the major components of phytic *** GA and TA can form trihalomethane(THMs) when reacting with chlorine in water disinfection process,causing liver,kidney or central nervous system problems,many researchers choose them as the major low molecular and medium molecular disinfection by-products(DBPs),respectively in their *** and its related compounds are also found in the wastewater of the coir and cork process industries,and it can create

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Highly Sensitive Optical Sensors for Hg2+ Based on Novel Conjugated Polymers with Phosphorescent Iridium Complex

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Highly Sensitive Optical Sensors for Hg2+ Based on Novel Con...

全国第八届有机固体电子过程暨华人有机光电功能材料学术讨论会

作者： Huifang Shi Huibin Sun Zhongfu An Wenjuan Xu Tingchun Ma Qiang Zhao Shujuan Liu~* Qidan Ling Wei Huang~* (Jiangsu Key Lab for Organic Electronic & Information Displays nanjing University of Posts and Telecommunications nanjing 210046) (Institute of Advanced Materials nanjing University of Posts and Telecommunications nanjing 210046) Institute of Advanced Materials Nanjing University of Posts and Telecommunications Nanjing 210046 Jiangsu Key Lab for Organic Electronic & Information Displays Nanjing University of Posts and Telecommunications Nanjing 210046

As one of the most deleterious global pollutants,mercury causes serious health and environmental problems because marine organisms convert inorganic Hg2+ into neurotoxic methylmercury,a potent n

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Delay-Dependent Stability Analysis for Linear System with Time-Varying Delay:a PAM Method

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Delay-Dependent Stability Analysis for Linear System with Ti...

2009中国控制与决策会议

作者： Xia Zhao~1,Jin Song~1,Engang Tian~2,Chen Peng~2 1.nanjing College of Information Technology,nanjing,210046,P.R.China 2.School of Electrical and Automation engineering,nanjing Normal University,nanjing,210046,P.R.China

＜正＞A piecewise analysis method（PAM） is proposed to investigate the stability of linear system with time- varying delay and *** from the existing methods in dealing with the time-varying delay,the whole variation interval of the delay is divided into two subintervals with equal *** for the delay belongs to different subintervals,new criteria on stability analysis of the time delay systems are obtained by checking the variation of the derivative of the Lyapunov functional in the two ***,by using the convexity properties of matrix inequality and some other new analysis techniques,new criteria are obtained for the asymptotical stable of the time delay *** given numerical examples show that the derived criteria can lead to much less conservative results than those obtained based on the existing methods.

关键词： Delay Dependent Piecewise Analysis Method(PAM) Lyapunov functional Interval Time-Varying Delay

Heading Consensus with Collision Avoidance for Linearized Vicsek Model with a Connected Initial Graph

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Heading Consensus with Collision Avoidance for Linearized Vi...

第三十届中国控制会议

作者： SUN Xue~1,ZHU Jiandong~1,YANG Zhanmin~2 1.School of Mathematical Sciences,nanjing Normal University,nanjing 210046,P.R.China 2.School of Electrical and Electronic Engineering,nanjing Institute of Industry Technology,nanjing 210046,P.R.China

＜正＞The consensus problem with collision avoidance is considered for linearized Vicsek model composed of many particles with possibly different initial absolute *** updating laws of absolute velocities and directions are adopted as the linear *** is revealed that,if the initial graph is connected and the maximum value of the initial absolute velocities is sufficiently small,then the consensus problem with collision avoidance can be *** results are presented to demonstrate the obtained result.

关键词： Linearized Vicsek model Consensus Collision avoidance Multi-agent systems

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学校发展规划制订与实施的困境

教育发展研究 2010年第2期30卷 51-55页

作者：贺菲肖全胜南京师范大学课程与教学研究所博士后南京210097 南京市栖霞区实验小学校长南京210046

要实现"学校发展规划"对学校自主发展的引导价值,必须确保所制订的发展规划本身具有合理性,同时要使校长和教师能够充分理解发展规划的意义并将其有效实施。当前,学校在制订发展规划过程中存在着:对优质教育理解的偏颇、办学理念的空洞... 详细信息

要实现"学校发展规划"对学校自主发展的引导价值,必须确保所制订的发展规划本身具有合理性,同时要使校长和教师能够充分理解发展规划的意义并将其有效实施。当前,学校在制订发展规划过程中存在着:对优质教育理解的偏颇、办学理念的空洞、特色发展的错误定位、发展领域的的确定缺乏重点等问题;在实施发展规划过程中面临着"理性"规划与"非理性"实践、学校教育价值取向与教育外在要求、学校自主发展与传统管理模式等的冲突。实践中,要使制订学校发展规划的成为学校的自主愿选择,并以坚定的信念与持续行动来实施规划。

关键词：学校发展规划规划文本规划价值

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一类弹性梁方程的正解存在性与多解性

山东大学学报（理学版） 2004年第5期39卷 64-67,72页

作者：姚庆六南京财经大学应用数学系江苏南京210046

通过选择合适的锥并利用锥拉伸与锥压缩型的Krasnosel’sii不动点定理考察了一类一端简单支撑 ,另一端被滑动夹子夹住的四阶弹性梁方程的n个正解的存在性 .这里n是一个任意的自然数 .结论的主要条件是局部的 .换言之 ,如果非线性项在某... 详细信息

通过选择合适的锥并利用锥拉伸与锥压缩型的Krasnosel’sii不动点定理考察了一类一端简单支撑 ,另一端被滑动夹子夹住的四阶弹性梁方程的n个正解的存在性 .这里n是一个任意的自然数 .结论的主要条件是局部的 .换言之 ,如果非线性项在某些有界集上的“高度”是适当的。

关键词：非线性弹性梁方程非线性边值问题正解存在性多解性