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复突触神经网络模型及其稳定性研究

铁道学报 2003年第5期25卷 70-74页

作者：李凯黄厚宽北京交通大学计算机与信息技术学院北京100044 河北大学数学与计算机学院河北保定071002

传统的Hopfield网络在联想记忆、优化计算方面发挥了重要作用,但该网络存在一个弊端,即它只能处理线性或二次的最优化问题。因此,本文首先对Hopfield神经网络进行了扩展,将其称为复突触神经网络(或模型),扩展的网络不仅可以解决目标函... 详细信息

传统的Hopfield网络在联想记忆、优化计算方面发挥了重要作用,但该网络存在一个弊端,即它只能处理线性或二次的最优化问题。因此,本文首先对Hopfield神经网络进行了扩展,将其称为复突触神经网络(或模型),扩展的网络不仅可以解决目标函数或约束中含有高阶的最优化问题,而且还可以处理目标函数含有对数、三角形式等较复杂函数的最优化问题;然后给出了该网络稳定的充分条件并给出了证明,同时对网络中的权矩阵是否对称也进行了讨论;最后结合典型的模糊c均值聚类问题验证了该模型的有效性。

关键词： Hopfield网络复突触神经网络稳定性模糊c均值聚类

Point-piezomagnetic Properties of the FeCuNbSiB Alloy Strips

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Journal of Wuhan university of Technology(Materials Science) 2009年第1期24卷 114-118页

作者：朱正吼 school of Materials Sciences and Engineering Nanchang University

The piezomagnetic properties of rapidly quenched Fe73.5Cu1Nb3Si13.5B9 alloy strips were investigated in as-quenched state and after annealing for 2 h in vacuum in the temperature range of 100-300 ℃. The impedance of amorphous strips increases with frequency, and sensitively de-creases with stress increasing, especially in the frequency range of 10-100 MHz. The impedance in-creases approximately linearly with frequency below the critical frequency, but begins to decrease non-linearly with frequency above the critical frequency. The higher the point compressive stress is, the smaller the critical frequency will be. The stability of piezomagnetic properties is very excellent. The impedance of amorphous strips after annealing, especially at 300 ℃, decreases very strongly. The impedance and the absolute values of the sensitive degree of couple layers＇ amorphous strips are lower than those of single layer strips.

关键词： piezomagnetic properties amorphous strips impedance

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利用曲轴扭振相位诊断内燃机故障缸的新方法

西南交通大学学报 2003年第5期38卷 528-530页

作者：闫兵董大伟秦萍华春蓉西南交通大学机械工程学院四川成都610031

依据内燃机动力学的基本理论,提出了一种利用实测曲轴扭振信号简谐分量的相位特性诊断内燃机故障缸的新方法.该方法不依靠先验知识,能简便而准确地判断出故障缸号.以6135ZG柴油机为对象进行了仿真计算和实验分析.研究表明,利用0.5谐次... 详细信息

依据内燃机动力学的基本理论,提出了一种利用实测曲轴扭振信号简谐分量的相位特性诊断内燃机故障缸的新方法.该方法不依靠先验知识,能简便而准确地判断出故障缸号.以6135ZG柴油机为对象进行了仿真计算和实验分析.研究表明,利用0.5谐次扭振位移的相位角可以准确判断出内燃机故障缸号.

关键词：内燃机故障扭振相位

Research of "Trust Form"on the Perspective of Evolutionary Economics

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Research of "Trust Form"on the Perspective of Evolutionary E...

The Performance Comparisons between the Unconstrained and Constrained Equalization Algorithms

2011 International Conference on Management Science and Intelligent Control(ICMSIC 2011)

作者： Qinghua Yan school of Economics and Manangement Wuhan university Wuhan china Guoqiang Da school of Economics and Manangement Wuhan university Wuhan china Lei Cheng school of Economics and Manangement Wuhan university Wuhan china

this paper divides the trust form into three types:Trust based on Guanxi,Trust based on contract,Trust based on publicity,and explores the law of trust form’s discipline under the analysis paradigm of Evolutionary Ec... 详细信息

关键词： trust trust form Evolutionary Economics Trust based on Guanxi Trust based on contract Trust based on publicity

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The Journal of china Universities of Posts and Telecommunications 2003年第4期10卷 50-58页

作者： HE Zhong-qiu,LI Dao-ben(school of Information Engineering, Beijing university of Posts and Telecommunications, Beijing 100876, P. R. china) school of Information Engineering Beijing University of Posts and Telecommunications 北京 100876

This paper proposes two unconstrained algorithms, the Steepest Decent (SD)algorithm and the Conjugate Gradient (CG) algorithm, based on a superexcellent cost function. At thesame time, two constrained algorithms which include the Constrained Steepest Decent (CSD) algorithmand the Constrained Conjugate Gradient algorithm (CCG) are deduced subject to a new constraincondition. They are both implemented in unitary transform domain. The computational complexities ofthe constrained algorithms are compared to those of the unconstrained algorithms. Resultingsimulations show their performance comparisons.

关键词： transform domain adaptive equalization constrained equalization algorithm

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网络环境下的文化管理

西南交通大学学报：社会科学版 2003年第4期4卷 55-61页

作者：何伟西南交通大学经济管理学院

网络文化因其特有的平等、个性、高科技化、高时效性、开放性和交互性特征加速了各种文化传播、吸收和融合 ,使我国传统文化面临着英语文化渗透、各民族历史文化竞争、信息垃圾及意识形态的颠覆、信息霸权等挑战。我们应从调节自身 ,增... 详细信息

网络文化因其特有的平等、个性、高科技化、高时效性、开放性和交互性特征加速了各种文化传播、吸收和融合 ,使我国传统文化面临着英语文化渗透、各民族历史文化竞争、信息垃圾及意识形态的颠覆、信息霸权等挑战。我们应从调节自身 ,增强网络文化竞争意识做起 ,制定宣传中国历史文化的规划 ,建设具有中国特色的域名服务器和因特网上的马克思主义阵地 ,制定网络政策法规、加强国际交流与合作 ,从而加强网络文化管理。

关键词：网络环境文化管理网络文化中国特色网络政策法规国际交流

Quantitative Approaches for Supplier Selection Problem in Supply Chain:A Review

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Quantitative Approaches for Supplier Selection Problem in Su...

第一届中国智能计算大会

作者： Jia Zhao school of Business,Renmin university of china,Beijing,100872,china

＜正＞As one of the most crucial components of the purchas- ing function in a supply chain,supplier selection is es- sential to improve the entity’s competitiveness and to increase customer’s *** propose many methods to solve the problem,including qualitative and *** paper review the existing quantitative approaches for problem of selecting *** con- centrate mainly on these models:linear weighting mod- els,mathematical programming models and total cost of ownership models.

关键词： supplier selection supply chain, quantitative approach AHP

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论道德与利益

教学与研究 2008年第3期 27-32页

作者：龚群中国人民大学哲学院北京100872

道德与利益之间是一个复杂的关系,但从根本上看,道德与利益是一致的。对于道德与利益关系理解的理论误区在于对个人利益在道德中的地位的理解。我们应当充分肯定个人利益在道德中的地位,同时也应看到超越个人利益的道德追求的合理性。... 详细信息

道德与利益之间是一个复杂的关系,但从根本上看,道德与利益是一致的。对于道德与利益关系理解的理论误区在于对个人利益在道德中的地位的理解。我们应当充分肯定个人利益在道德中的地位,同时也应看到超越个人利益的道德追求的合理性。即使是对于那些行为高尚者的超责任的道德行为,社会也应当给予某种应有的利益奖赏,从而使得高尚的道德行为得到应有的社会尊重和回报。

关键词：道德利益个人利益

Evaluation of Medical Cost Lost Due to Smoking in Chinese Cities

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Biomedical and Environmental Sciences 1995年第4期8卷 335-341页

作者： CHEN JIE CAO JIAN-WEN CHEN YING AND SHAO DE-YAO(Department of Hospital Management, school of Public Health, ShanghaiMedical university, 138 Yi Xue Yuan Road Shanghai 200032, china) Department of Hospital Management School of Public Health Shanghai Medical University China.

Smoking induces substantial diseases burden on both individual and the whole *** identify the true smoking-attributable economic loss, we introduce medical cost accounting as a means to calculate disease-speciflc medical cost, including inpatient and outpatient cost of those diseases caused by smoking. Medical cost is defined as health fesource consumption in terms of money. Cost is allocated to departrpent and services according to coeffcient of benefit and operation time. The study in 1988 indicates that total smoking-attributable medical cost is 2.32 billion RMB Yuan in china, 1.70 billion RMB Yuan for outpatient, 0.62 billion RMB Yuan for inpatient. If indirect cost is included, the cost will be greater. Chronic obstructive emphysema has the highest proportion (55.41%) in smoking attributable medical cost

关键词： Evaluation of Medical Cost Lost Due to Smoking in Chinese Cities Zhang