日立公司出口欧洲铁路车辆技术

介绍了日立公司出口英国的395型高速列车的技术,以及在车辆研发过程中遇到的标准不同的问题,并概述了在防碰撞方面采取的特殊措施。     

Cost and User Profile of a Coastal Ocean Observing System

Fundamental to sustaining the financial support of a coastal ocean observing system is an intimate knowledge of users and their decision-making processes in order to maximize the worth of ocean observations to them. This article explores the evolving mission of GoMOOS (the Gulf of Maine Ocean Observing System), its costs of providing near real-time observations and observing products, possible methods to assess the benefits of an ocean observing system, and a method for indexing the importance—and thus, potentially, the economic value—that users attach to these observations and products.     

About the possibilities of using the renewable energy power sources on railway transport

Several electrification systems based on renewable energy power sources (first of all, solar energy) are discussed in respect to their applicability to railway transport and, in particular, to suburban electric trains. Two systems are considered with basic technical details and economic estimation, both including the onboard bank of batteries and the photovoltaic converters (PVC) of solar energy for compensation of energy expenses, which could be positioned either on stations or on wagon's roofs. Sun‐tracking systems and their effect on the solar energy conversion efficiency are discussed in application to stationary and moving PVC platforms. An analysis made shows that introduction of the “green” systems discussed will not only have positive ecological impact, but also can bring a notable economical effect even with today's components, while it could be considerably greater with the usage of new PVCs, which are being developed by the authors. Copyright © 2011 John Wiley & Sons, Ltd.     

有限元示范库多媒体系统的设计与实现

在Ｗｉｎ９５／Ｗｉｎ９８平台上，采用ＨＴＭＬ语言设计实现了有限元示范库多媒体系统。从系统结构、用户界面设计、关键技术等方面，介绍了该系统的功能及特点。     

RFID在列车运行控制系统中的应用

介绍RFID技术及工作原理,并将其在列控系统中的应用方式进行描述,最后举例介绍了以RFID构成的点式列控系统.     

High-speed train control based on multiple-model adaptive control with second-level adaptation

Speed uplift has become the leading trend for the development of current railway traffic. Ideally, under the high-speed transportation infrastructure, trains run at specified positions with designated speeds at appointed times. In view of the faster adaptation ability of multiple-model adaptive control with second-level adaptation (MMAC-SLA), we propose one type of MMAC-SLA for a class of nonlinear systems such as cascaded vehicles. By using an input decomposition technique, the corresponding stability proof is solved for the proposed MMAC-SLA, which synthesises the control signals from the weighted multiple models. The control strategy is utilised to challenge the position and speed tracking of high-speed trains with uncertain parameters. The simulation results demonstrate that the proposed MMAC-SLA can achieve small tracking errors with moderate in-train forces incurred under the control of flattening input signals with practical enforceability. This study also provides a new idea for the control of in-train forces by tracking the positions and speeds of cars while considering power constraints.     

列控中心控制方向电路的一致性探讨

针对列控中心(TCC)控制的区间方向电路存在的一致性问题,通过采用故障预防、故障控制的方法,对区间方向电路形成闭环的检查,确保区间方向的一致性,在不降低安全性的前提下,提高区间方向电路可用性,减少对铁路运输的影响。     

救援列车驻地工艺设计

目前涉及到救援列车驻地工艺设计的参考资料较少,通过对已建成或设计中的救援列车基地进行调查,结合《铁路救援列车管理办法》等规范,对救援列车进行简要介绍,并进行救援列车驻地工艺设计,供系统同行参考并提出优化建议,以期不断完善救援列车及驻地工艺设计,提升铁路救援能力,在事故发生时减少国家经济损失,并能给铁路运输带来安全和效益。     

Sociological perspectives on travel and mobilities: A review

There is increasing interest in understanding and achieving changes in travel behaviour, but a focus on individual behaviour change may overlook the potential for achieving change via transformation at the levels of institutions, cultures and societies – the domains of sociological inquiry. In this paper, we review sociological contributions to the literature on travel and ‘mobilities’. We summarise four key themes which supplement or contradict arguments made in mainstream transport debates on behaviour change. The first involves focusing on travel ‘practices’ as social entities with dynamics of their own, rather than on individual behaviours. The second relates to the changing natures of societies, and the implications for travel. The third explores and interprets the issue of car dependence in ways which highlight the ethical, experiential and emotional dimensions associated with car use, its symbolic role in societies increasingly concerned with consumption, and its differing roles within different cultures. Finally, the ‘new mobilities paradigm’ highlights issues such as the increasing links between travel and new technologies, and the primacy of social networks in influencing travel decisions. These themes emphasise the importance of understanding the broader contexts in which travel choices are made. In particular, the implication is that the creation of more sustainable travel patterns will require changes at a range of social levels, not simply in individual behaviours, and that changes to transport will inevitably be linked with, and influenced by, broader changes in the values and practices developed by societies as a whole.