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Real-coding Genetic Algorithm-based Model Identification for Bed Temperature of 300MW CFB Boiler

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Real-coding Genetic Algorithm-based Model Identification for...

2011 Chinese Control and Decision Conference（CCDC）

作者： Guolian Hou,Professor in the school of Control and Computer engineering,North China Electric Power University,Changping District,Beijing,102206,CHINA.Yuanyuan Zhang,school of Control and Computer engineering,North China Electric Power University,Changping District,Beijing,102206,CHINA.Jianhua Zhang,Professor in the school of Control and Computer engineering,North China Electric Power University,Changping District,Beijing,102206,CHINA.

This paper proposed that an improved genetic algorithm based on real-coding,multi-operators cooperation and rank-based selection of crossover and mutation *** algorithm has better ability to search the global optimum result,and applies to identify the model of 300MW circulating fluidized bed boiler in order to acquire the accurate transfer *** study is conducted to highlight the model of bed temperature and its effect factors.

关键词： Real-coding genetic algorithm 300MW CFB boiler bed temperature transfer function

A　Partial　Parallel　Airport　Gate　Assignment　Supported　by　a　Knowledge－based　System　Combined　with　Mathematical　Programming

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Journal of Systems engineering and Electronics 1996年第3期7卷 43-61页

作者： Cheng Yu(Center for Transportation Studies, school of Civil and Structural engineeringNanyang Technological University, Singapore, 2263) Center for Transportation Studies School of Civil and Structural Engineering Nanyang Technological University Singapore 2263

The gate assignment at an airport is one of the major activities in airport *** the increase of passenger traffic volumes and the number of flights, the complexity of this task and the factors to be considered have increased significantly, and an efficient gate utilizationhas received considerable attention. For overcoming the shortcomings of previous gate assignmentapproaches, this paper presents a partial parallel gate assignment approach, by which more factorsconcerning aircraft and gates can be collsidered at the same time. This paper also presents themethod of using a knowledge-based system combined with a mathematical programming method forgetting an optimized feasible assignment solution. By this way, it is more easily to get the solutionthat satisfies both the static and dynamic situations,and thus it may adapt well to meet the needsof actual use to rea-time operations. An experimental prototype has been implemented, and a casestudy is presented at the end of the paper.

关键词： Airport operations Gate assignment Knowledge-based system Mathematical programming.

A Domain Ontology-based Information Retrieval Approach for Technique Preparation

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A Domain Ontology-based Information Retrieval Approach for T...

2010 2nd International Conference on Multimedia and Computational Intelligence (ICMCI 2010)

作者： Liu Xinhua1 Zhang Xutang2 Li zhongkai1 1)school of Mechanical and Electrical engineering 2)school of Mechatronics engineering China University of Mining and Technology Harbin Institute of Technology XuZhou Jiangsu Province China Harbin Heilongjiang Province China

In order to realize information sharing and information reuse of technique preparation process, idea of domain ontology was applied in technique preparation process. The concept of technique preparation domain ontology was proposed and its structure was designed. Moreover, the information retrieval framework for technique preparation based on domain ontology was put forward and the flowchart of the proposed approach was designed. Furthermore, the similarity relation between concepts was elaborated and the similarity computing approach of domain ontology was designed to resolve the problem of technique preparation information similarity. Finally, an application case was illustrated and the information retrieval approach was proved efficient.

关键词： Technique Preparation Information Retrieval Domain Ontology Similarity Computing

Seismic Convolution Simulation and Its Analysis for Porous Media

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地学前缘 2009年第S1期16卷 288-288页

作者： Ruixin Li,Xinwu Huang school of engineering & Technology,China University of Geosciences(Beijing),Beijing 100083,China.

Convolution is an important component of the AVO forward simulation *** handles the original information such as the earth response,which is very helpful to reduce and eliminate the multiplicity of *** it,we can accurately describe the thickness of reservoir and its geometry,and then estimate the changes of the reservoir’s physical properties *** handled the porous

关键词： convolution model wavelet porous media reflection coefficient

H∞ Robust Tracking of Vertical Motions in High-Rise Elevator

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H∞ Robust Tracking of Vertical Motions in High-Rise Elevato...

2005国际电机与系统学术会议

作者： Qing Hu Qingding Guo Dongmei Yu Hong Miao school of Electrical engineering Shenyang University of TechnologyShenyang Liaoning 110023 China

＜正＞ This paper presents the design of vertical motion control systems for ultra-high rise/high speed elevator. We use a linear model to describe the real elevator system, and then utilize LMIs processing method to generate a H∞controller which is designed based on this model and both performance objectives, tracking and releveling. Additionally, the controller design must be robust to changes in system parameters due to component wear, variations in the dynamics of the elevator ropes. After that, simulation studies are carried out to evaluate the performance of the controller. Simulation results have shown that the performance of this controller is also robust to the anticipated range of parameter uncertainty within the system.

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The Analysis of Flow Cryptographic Algorithm and the Circuit Implementation

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The Analysis of Flow Cryptographic Algorithm and the Circuit...

第二届亚太地区信息论学术会议

作者： Lianqing ZHAO 1 Miaoying ZHAO 2 school of Electric and Electronic engineering North China Electric Power University Beijing 102206

Flow password is an important password system in information security and *** passage analyzes three typical flow cryptographic algorithms based on linear feedback shift register-Pless generator,Clock-control sequence generator and A5 algorithm,and researches circuit implementation schemes of three *** shows that,Pless generator hardware performance is poor and vulnerable;clock-control method designed more complex,as clock-control sequence generator,is an ideal method to produce key flow using by linear shift register,and flow password system will be more safety;A5 algorithm statistical properties is good,and efficiency is very high,moreover,if using the longer and more series of linear feedback shift register,it will be more safety.

关键词： Flow password Pless generator Clock-control sequence generator A5 algorithm circuit implementation

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低温下人工湿地去污效率及强化措施研究进展

水电能源科学 2011年第8期29卷 25-28,213页

作者：练建军许士国大连理工大学建设工程学部水利工程学院辽宁大连116024

针对冬季低温下人工湿地去污效率低的问题,分析了人工湿地对主要污染物去除机理,探讨了低温对人工湿地系统三要素的去污影响,结合相关工程实例,总结了低温下人工湿地强化运行方法及措施,并提出了未来研究的方向,供北方寒冷地区人工湿地... 详细信息

针对冬季低温下人工湿地去污效率低的问题,分析了人工湿地对主要污染物去除机理,探讨了低温对人工湿地系统三要素的去污影响,结合相关工程实例,总结了低温下人工湿地强化运行方法及措施,并提出了未来研究的方向,供北方寒冷地区人工湿地应用借鉴。

关键词：低温人工湿地温度溶解氧强化措施

含轴对称初始缺陷的具有正交各向异性表层的夹层圆柱壳的非线性屈曲

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力学季刊 2003年第4期24卷 560-566页

作者：王珂晟唐国金装甲兵工程学院机械工程系北京100072 国防科技大学航天与材料工程学院长沙410073

夹层圆柱壳具有很高的结构效能,在许多工程结构中被广泛采用。本文研究分析了含有轴对称初始缺陷的夹层圆柱壳在轴压下的非线性屈曲问题,该夹层壳具有正交各向异性表层和各向同性可承剪的夹心。利用Stein的前屈曲一致理论得出了前屈曲... 详细信息

夹层圆柱壳具有很高的结构效能,在许多工程结构中被广泛采用。本文研究分析了含有轴对称初始缺陷的夹层圆柱壳在轴压下的非线性屈曲问题,该夹层壳具有正交各向异性表层和各向同性可承剪的夹心。利用Stein的前屈曲一致理论得出了前屈曲挠度随轴向载荷及缺陷参数的变化情况,运用Galerkin法导出了屈曲控制方程,并进行了数值计算,得到了屈曲载荷、缺陷幅值、缺陷波数、夹心模量等参量之间的关系。结果表明与壳体实际屈曲模态相同的初始缺陷具有很大的危害性,可以通过增加壳体表层的轴向弹性模量或优化夹心的有关参数等途径来提高屈曲载荷,改善壳体屈曲性能。

关键词：夹层圆柱壳屈曲轴对称初始缺陷正交各向异性表层几何非线性

Fabrication of Nanoparticle Array by Polymer Pen Lithography

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Fabrication of Nanoparticle Array by Polymer Pen Lithography

2011中国材料研讨会

作者： Fengwei Huo,Shaozhou Li school of Materials Science and engineering,Nanyang Techonological University 50 Nanyang Ave.Singapore,639798

＜正＞Integration of individual nanoparticles or nanocrystals into ordered spatial organization over large areas is a prerequisite for exploiting their unique electric,optic,or chemical properties in

关键词：