GCD-1000型轨道车用电传动系统研究

阐明了电传动轨道车的优点,通过对轨道车主要技术参数及电传动系统结构进行分析,提出电传动系统设计方案.     

防碰头车门装置的设计

一般的轿车车门都较低,出入车很容易碰头,针对这一普遍存在的问题,在车门门框处增加缓冲板随车门联动机构,以防止乘客进出时碰头。     

Alternative Modeling Approaches Used for Examining Automobile Ownership: A Comprehensive Review

Abstract

Household vehicle ownership, and the associated dimensions including fleet size, vehicle type and usage, has been one of the most researched transport topics. This paper endeavors to provide a critical overview of the wide-ranging methodological approaches employed in vehicle ownership modeling depending on the ownership representation over the past two decades. The studies in the existing literature based on the vehicle ownership representation are classified as: exogenous static, exogenous dynamic, endogenous static and endogenous dynamic models. The methodological approaches applied range from simple linear regressions to complex econometrics formulations taking into account a rich set of covariates. In spite of the steady advancement and impressive evolution in terms of methodological approaches to examine the decision process, we identify complex issues that pose a formidable challenge to address the evolution of vehicle ownership in the coming years. Specifically, we discuss challenges with data availability and methodological framework selection. In light of these discussions, we provide a decision matrix for aiding researchers/practitioners in determining appropriate model frameworks for conducting vehicle ownership analysis.     

区间信号设备维修轨道车使用方式探讨

阐述温福客专铁路现行区间信号设备维修作业组织方式及所遇到的困难,通过比较说明使用轨道车进行区间信号设备检修作业的优越性;提出电务共用工务轨道车的3种方案并进行优劣性比较探讨。     

俄罗斯专用货车动力性能的评价

运用编制的专用货车模型,对大定距车辆进行计算,通过比较计算结果和试验结果,认为可以采用计算对专用货车的动力性能及运行安全性进行评估.     

纯电骡子车开发及试制新方法应用

通过对比燃油汽车与纯电动汽车整车架构,分析燃油车改制纯电动骡子车的可行性。利用现有车型完成纯电动骡子车改制,不仅可以节省开发成本,还可以加快新产品升级换代。同时基于两种车型的差异性,制定相应的车型改制方案。阐述常见的改制内容与创新方法应用,为后续同平台新车型开发提供参考。     

基于偏最小二乘的两栖突击车作战效能预测

针对两柄突击车作战效能和偏最小二乘的特点，提出了基于偏最小二乘预测作战效能的方法。介绍了偏最小二乘回归的具体过程，在此基础上．对某型两栖突击车的作战效能进行了预测。得到了可靠的作战效能系数。     

Guidance for transport planning and policymaking in the face of an uncertain future

Uncertainty of outcome is widely recognised as a concern facing decision-makers and their advisors. In a number of spheres of policy, it appears uncertainty has intensified in the face of globalisation, economic instability, climate change, technological innovation and changing consumer preferences. How can planners and policymakers plan for an uncertain future? There is growing interest in, and use of, techniques that can help decision-making processes where deep uncertainty is involved. This paper is based upon one of the most recent international examples of a foresight exercise employed to examine uncertainty – specifically that which concerns uncertainty over the nature and extent of future demand for car travel. The principal focus of the paper is on the insights and guidance this examination of uncertainty brings forth for transport planning and policymaking. To accommodate deep uncertainty requires a flexible and open approach in terms of how policy and investment possibilities are formulated and judged. The paper argues for a focus upon the Triple Access System of spatial proximity, physical mobility and digital connectivity as a framework for policy and investment decisions that can harness flexibility and resilience. Uncertainty becomes an opportunity for decision-makers with the realisation that they are shaping the future rather than (only) responding to a predicted future. The paper outlines two forms of policymaking pathway: regime-compliant (in which adherence to trends and the nature of the world we have known pushes policy) and regime-testing (in which the nature of the world as we have known it is brought into question and vision pulls policy decisions). Stronger orientation towards regime-testing to assist in managing an uncertain future is advocated.     

基于激光传感器的寻迹智能车设计与开发

激光传感器智能车系统采用飞思卡尔的16位微控制器MC9S12XS128单片机作为核心控制单元。介绍了智能车硬件系统的设计,分析了控制策略和相关软件设计。实际竟赛中取得了较好的成绩。     

对船舶污染损害侵权责任及索赔主体问题的探讨

船舶污染事故是造成海洋环境污染损害的主要原因之一,建立完善的船舶污染损害索赔机制,保证受损方获得及时的赔偿,是恢复海洋环境、维护受害者利益所必须的。文中从民法的基本原理出发,对国家海域所有权、海域使用权等进行了论述,并按照民事侵权责任的承担原则,对索赔权利主体的确定等问题进行了探讨。