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An improved group search optimizer for mechanical design optimization problems

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Progress in Natural Science:Materials International 2009年第1期19卷 91-97页

作者： Hai Shena,b,c,Yunlong Zhu a,Ben Niu a,b,Q.H.Wu d a Key Laboratory of Industrial informatics,Shenyang institute of Automation,Chinese Academy of Sciences,Shenyang 110016,{2. b Graduate School of the Chinese Academy of Sciences,Beijing 100049,{2. c College of Physics Science and Technology,Shenyang Normal University,Shenyang 110034,{2. d Department of Electrical Engineering and Electronics,The University of Liverpool,Brownlow Hill,Liverpool,L69 3GJ,UK [a]Key Laboratory of Industrial informatics Shenyang Institute of Automation Chinese Academy of Sciences Shenyang 110016 China [b]Graduate School of the Chinese Academy of Sciences Beijing 100049 China [c]College of Physics Science and Technology Shenyang Normal University Shenyang 110034 China [d]Department of Electrical Engineering and Electronics The University of Liverpool Brownlow Hill Liverpool L69 3GJ UK

This paper presents an improved group search optimizer(iGSO) for solving mechanical design optimization *** the proposed algorithm,subpopulations and a co-operation evolutionary strategy were adopted to improve the global search capability and convergence *** iGSO is evaluated on two optimization problems of classical mechanical design:spring and pressure *** experimental results are analyzed in comparison with those reported in the *** results show that iGSO has much better convergence performance and is easier to implement in comparison with other existing evolutionary algorithms.

关键词： Mechanical optimization problem GSO Constrained optimization problem

EFFECT OF A VISCOUS LIQUID LAYER ON THE TRANSVERSE SURFACE WAVES IN TRANSVERSELY PIEZOELECTRIC MATERIALS WITH UNATTACHED ELECTRODE

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EFFECT OF A VISCOUS LIQUID LAYER ON THE TRANSVERSE SURFACE W...

2.10全国压电和声波理论及器件技术研讨会

作者： Feng JIN~1,Peng LI~1,Zheng-hua QIAN~2.1 MOE Key Laboratory for Strength and Vibration,School of Aerospace,Xi'an Jiaotong University Xi'an,Shaanxi 710049,P.R.china 2.Department of Mechanical and Environmental informatics,Tokyo {2. of Technology Tokyo 152.8550,Japan

The propagation of the transverse surface waves in an unbounded piezoelectric half-space with a viscous liquid layer between the half-space surface and an unattached electrode is *** exact dispersion relation is obtained from the equations of the linear theory of *** show that the wave speed is sensitive to the viscous coefficient,the mass density and the dielectric permittivity of the fluid layer. Especially,the phase velocity changes linearly with the increasing mass density when other parameters keep constant,which can be used to manipulate the behavior of the waves and has implications in acoustic wave devices.

关键词： Transverse surface waves a viscous liquid layer dispersion relation

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放射性锆在红壤中的淋溶特性研究

上海交通大学学报（农业科学版） 2001年第2期19卷 117-120页

作者：刘立丽史建君陈晖赵希岳张永熙浙江大学原子核农业科学研究所杭州310029 浙江工程学院信息电子学院杭州310033

采用模拟土柱法研究了放射性锆 (95 Zr)在两种红壤 (泮畈红壤和红黄壤 )中的淋溶特性和垂直迁移。结果显示 :1)淋溶收集水中95 Zr的含量甚微 ,接近于 0 ,且随着总淋溶水量的增加 (2.5 0～ 75 0ml ) ,淋溶水中95 Zr的总量几乎没有变化 ,... 详细信息

采用模拟土柱法研究了放射性锆 (95 Zr)在两种红壤 (泮畈红壤和红黄壤 )中的淋溶特性和垂直迁移。结果显示 :1)淋溶收集水中95 Zr的含量甚微 ,接近于 0 ,且随着总淋溶水量的增加 (2.5 0～ 75 0ml ) ,淋溶水中95 Zr的总量几乎没有变化 ,表明95 Zr一旦被土壤吸附 ,则不易被水流解吸 ;(2.)滞留于土壤中的95 Zr绝大部分分布在土壤表层 ,泮畈红壤和红黄壤分别有90 .0 5 %～ 97.47%和 96 .0 2.%～ 97.16 %的95 Zr滞留于 0～ 0 .4cm土层范围内 ,表明二种红壤对95 Zr均有较强的吸附能力 ;比较其变化动态 ,红黄壤对95

关键词： ^95Zr 红壤淋溶特性垂直迁移放射性锆

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ENHANCING PRIVACY PRESERVATION FRAMEWORK IN DISTRIBUTED TRUST MODEL

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ENHANCING PRIVACY PRESERVATION FRAMEWORK IN DISTRIBUTED TRUS...

第八届分布式计算及其应用国际学术研讨会

作者： Yusheng Zhong1 Bo Yang 2.Mingwu Zhang 3 Wenzheng Zhang 4 12.College of informatics South china Agriculture UniversityGuangzhou Guangdong 510642.china 4 National Laboratory for Modern CommunicationsChengdu Sichuan 610041 china

Distributed trust management implements authorization, delegation,and access control with a decentralized and flexible *** submitting and policies interacting will disclose owner’s sensitive attributes and *** this paper, several solutions about establishing trust with privacy preserving are introduced,including secure and anonymous credentials,sensitive policies,balance of trust and privacy,risk analyzing and *** privacy enhancing frameworks for trust establishing are described to enforce the trust and privacy *** potential solutions are also proposed and discussed.

关键词： Trust Management Credential Sensitive Policy Privacy Preservation

Light-modulated Dynamics in a Novel Mammalian Circadian Oscillator Model

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Light-modulated Dynamics in a Novel Mammalian Circadian Osci...

第二十九届中国控制会议

作者： WANG Junwei 1,CHEN Aimin 2.3,ZENG Li1 1.School of informatics,Guangdong University of Foreign Studies,Guangzhou 510006,P.R.china2.{2. of Applied Mathematics,Henan University,Kaifeng 475004 3.School of Mathematics and Information Science,Henan University,Kaifeng 475004,P.R.china

Circadian rhythms dictate our daily schedules in behaviour and physiology,and disruptions of normal circadian cycles therefore have potential to cause disorders of diverse physiological processes.A fundamental characteristic of circadian timing is the ability of the clockwork to be entrained by environmental time *** this paper,we mainly focus on the light-modulated dynamics in a novel model for the mammalian circadian clock which incorporates both the negative and positive feedback *** is shown that such a model not only can be entrained by light-dark（LD）cycles with equal distribution of night length and day length as observed experimentally,it can also be entrained by irregular LD *** phase of circadian oscillations is significantly affected with the variation of LD cycles,demonstrating adaptation of the mammalian circadian clock to LD ***,through numerical simulations and theoretical analysis we found a constructive role of light,i.e.,the LD cycles can recover the circadian rhythmicity of gene knockout *** results might aid our understanding of the exploitation of light in the mammalian circadian rhythm generation.

关键词： Circadian clock Zeitgeber Entrainment Light-dark cycle Mathematical model

Stochastic Model of GPS/BD Combined Standard Single Point Positioning

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Stochastic Model of GPS/BD Combined Standard Single Point Po...

第三届中国卫星导航学术年会

作者： Wenkun Yu 1,Wujiao Dai 1,Xiaoli Ding 2.Wentao Yang 2.Xiao Gao 1 1 School of Geosciences and Info-physics Engineering,Central South University,Changsha,Hunan,china 2.Department of Land Surveying and Geo-informatics,The Hong Kong Polytechnic University,Hung Hom,Kow Loon,Hong Kong

Reasonable determination of weights is the key factor in giving full play to advantages of GPS/BD combined ***,Helmert VCE （Variance Component Estimation） is employed aiming at adjusting the variance-ratio between the two heteroscedastic ***,the precise priori weight matrix can enhance the convergence of iteration methods based on posteriori information,reduce the iteration’s ***,system related errors,together with outliers,influence the estimation,leading to a distorted stochastic ***,in this paper,based on robust Helmert VCE and using integrated priori accuracy,taking various error sources into consideration,an initial weighing method for combined system is suggested.

关键词： GPS/BD robust Helmert stochastic model

Electric Resistances of 2. Jingluo Starting Points in Idiopathic Infertile Men

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Electric Resistances of 24 Jingluo Starting Points in Idiopa...

绿色纺织，健康生活——第三届纺织生物工程及信息学国际会议

作者： Dang-Xia Zhou1,2. Yi Li2.Hai-Xu Wang3 1Department of Pathology, Xi’an Jiaotong University, Xi’an, 710061, china 2.1} of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong, china 3Reproductive center, Xi’an Jiaotong University, Xi’an, 710061, china

Infertility affects 10-15% of couples, male factors account for nearly half of all infertility cases. Although modern diagnostic and therapeutic methods are available, unfortunately, approximately 50% of infertility cases are still unexplained. Traditional Chinese Medicine (TCM) has a comprehensive theoretical framework on the essence of body health status among body parts and internal organ systems. This study was designed to explore the relationship between Electric resistances at 2. Jingluo starting points and male infertility. The preliminary results indicate that compared to the normal male population, the inferile men have obvious different electric resistances values in Fei Jing, Gan Jing, Pi Jing, Wei Jing, Dan Jing, Shen Jing, Pangguang Jing (P<0.05) et al, which may lay down the scientific foundation for the next generation of underclothes bioengineering design.

关键词： male infertility electric resistance jingluo

An Algebraic Approach to Mechanical Tabu Search Algorithm Generation

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An Algebraic Approach to Mechanical Tabu Search Algorithm Ge...

The 2.10 IEEE International Conference on Progress in informatics and Computing

作者： Yujun Zheng~(1 2.*) Haihe Shi~(1 3) and Jinyun Xue~(1 3) 1 Provincial Key Lab of High-Performance Computing Jiangxi Normal University Nanchang china 2.Beijing Systems Engineering institute of Equipments Beijing china 3 institute of Software Chinese Academy of Sciences Beijing china

＜正＞Traditional approaches to apply tabu search method typically require formulating an algorithmic structure for each individual *** on algebraic specifications,the paper presents a unified and mechanical framework for implementing tabu search algorithms for combinatorial optimization problems. We define a generalized specification using high-order functions to describe search strategies,from which efficient algorithms can be generated for concrete problems by data type refinement and functional *** also extend the framework for multiobjective problems by enriching specification *** approach achieves a high level of abstraction and mechanization without losing performance.

关键词： Tabu search algebraic specifications program generation generic programming high-order functions

Fabrication of thick BOX SOI by Smart-cut technology

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Nuclear Science and Techniques 2003年第2期14卷 115-118页

作者： WU Yan-Jun, ZHANG Miao, AN Zheng-Hua, LIN Cheng-Lu(State Key Laboratory of Functional Materials for informatics, Shanghai institute of Microsystem and Information Technology,the Chinese Academy of Sciences, Shanghai 2.0050) Shanghai institute of Microsystem and Information Technology the Chinese Academy of Sciences State Key Laboratory of Functional Materials for Informatics 上海 200050

A SOI material with thick BOX (2.2.μm) was successfully fabricated using the Smart-cut technology. The thick BOX SOI microstructures were investigated by high resolution cross-sectional transmission electron microscopy (XTEM), while the electrical properties were studied by the spreading resistance profile (SRP). Experimental results demonstrate that both structural and electrical properties of the SOI structure are very good.

关键词：灵活切割技术微观结构截面透射电子显微镜 XTEM 电学特性绝缘硅片 SOI

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