SDH传输系统的告警维护信号

介绍了ＳＤＨ传输系统主要告警维护信号，描述了告警维护信号的含义和故障产生原因。举例说明了ＳＤＨ传输系统因传输故障所引起的告警序列。     

论我国高速列车的动力配置与动力转向架选型

根据京沪高速铁路的运营需求和基础设施的基本限制条件，设计了４种类型的高速列车，并经验算和分析后认为，京沪高速铁路宜采用动力分散型高速列车。通过对转向架结构和车辆联接方式的动力学性能方面的比较，建议选择体悬式万向轴传动动力转向架为列车动力转向架。同时还提出了动力架向架传动机构创新和参数选择的原则和方法。     

POLYMORPHISM OF THE vWF LOCUS AND ITS FORENSIC APPLICATION IN COMPACT BONE

Amplifiedfragmentlengthpolymorphisms(Amp--FLPs)havebeenevaluatedasusefulgeneticmarkersinforensiccaseworks{'~'].vWFpolymorphismisoneoftheAmp--FLPsdetectedbythepolymerasechainreaction(PCR).-PopulationdataconcerningvWFhasbeedpreviouslycarriedoutonEuropeanCaucasians[13.ButnodataisavailablefortheChinesepopulation.Inthisreport,wepresentthedataforvWFlocusin112unrelatedChineseHanindividualsanditsapplicabilityincompactboneanddens.MATERIALSANDMETHODS1.PrimersA:5'~ACGTATTCTATTTAT~3…     

Trip Chain's Activity Type Recognition Based on Support Vector Machine

This paper focuses on support vector machine (SVM) based trip chain's activity type recognition. First, the time-series location information of person trip is processed to obtain the trip chain elements including moving processes and activities, and the activity options are extracted from the geographic information system (GIS) around the activity sites. Second, the activity features are drawn from spatio-temporal factors of trip chain to serve as the input feature vector of classifier. A SVM based one-to-one classifier is established and the method of one-to-one classifier voting is adopted to decide the most likely activity type from the activity options. Finally, the classifiers are trained with simulation data based on the Gaussian radial basis (RBF) kernel function and the multilayer perception (MLP) kernel function respectively, and then examined by cross validation. The result shows that in the one-to-one classifying scheme, the highest and lowest right recognition rate with RBF are 99% and 62%, and the corresponding results with MLP are 97% and 54%, respectively.     

A game-theoretic analysis of competition among container port hubs: the case of Busan and Shanghai 1

Countries throughout the world, and especially within Asia, are investing heavily in container port infrastructure in the hopes of capturing a larger share of global shipping activity for their economies. Many existing ports are emphasizing developing the capacity to serve as a hub port, building deepwater berths with large terminals to facilitate transfer of containers from feeder ships to mother ships for intercontinental transport. We develop a game-theoretic best response framework for understanding how competitor ports will respond to development at a focus port, and whether the focus port will be able to capture or defend market share by building additional capacity. We apply this model to investment and competition currently occurring between the ports of Busan and Shanghai.     

铁路罐式集装箱空箱调配优化模型及遗传模拟退火算法

针对罐式集装箱运输的特殊性,考虑重箱流和空箱流调配的综合优化,以罐箱运输费用最小为目标,建立铁路罐式集装箱空箱调配优化多商品网络流模型,并构造了1种嵌入模拟退火操作的遗传算法对之进行求解。为了使模型与算法可得到更符合实际、操作性更强的结果,给出了3种空罐箱调配的策略,作为隐含条件加入到算法求解过程中。利用自适应遗传模拟退火算法对随机生成的实际规模问题算例进行求解,并与用通用代数建模系统软件GAMS的计算结果进行对比。结果表明,前者得出的结果与最优解差距不大,而且运算速度更快,更能满足解决实际问题的需要,为铁路罐箱调配优化提供了良好的决策支持模型和算法。     

城市轨道交通民营化的发展模式选择

根据城市轨道交通100多年来的发展历程,总结出6种发展模式,并重点研究了其中3种民营化的发展模式.在此基础上,分析了城市轨道交通民营化发展过程中存在的4个主要问题.结合中国的实践,对如何选择城市轨道交通发展模式提出了建议.     

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主要分析均衡配流条件下城市道路网络承载能力度量与建模中的关键性影响因素。通过对以往研究进展进行综述，指出了现有方法和模型存在的不足。结合备用能力度量指标，对路网承载能力建模中的四个重要因素——路段通行能力、服务水平要求、出行需求结构和出行者择路行为进行了深入剖析，并对其内在关联性进行了讨论。最后提出了区域备用能力这一较为系统化的度量指标，并通过比较说明其优越性。     

潜艇大气环境多传感器信息融合技术研究

介绍多传感器信息融合技术的概念,分析了多传感器集成与信息融合的问题,介绍了贝叶斯准则、D-S证据理论、模糊理论和神经网络的4种方法与算法,论述了潜艇大气环境多传感器信息融合技术研究的优点及其必要性.     

基于GIS的铁路绿色选线决策支持系统的研究与设计

为了解决铁路建设带来的环境问题，围绕铁路环境保护“十五”计划中提出的“绿色选线”制度，运用系统分析和多目标决策的理论和方法，以地理信息系统（GIS）为主要技术支撑，以决策支持系统（DSS）为核心理论，并引入基于组件的软件开发方法，从铁路线路方案的环境影响问题出发，结合其特点，对基于环保理念的铁路绿色选线决策支持技术进行了研究，完成了基于GIS的铁路绿色选线决策支持系统的总体设计与实现，完善了现有铁路选线过程中环境问题的考虑方式，提高了决策的能力和智能化水平。