外白渡桥工作状态模拟与使用安全评估

在对桥梁档案进行详细调查基础上,初步建立了外白渡桥工作模型,进而与1991年、2000年的实测结果进行对比来校正工作模型,最终建立了反映实际受力性能的三维力学模型。在实桥工作状态模拟的基础上,联合应用传统疲劳分析和工程断裂力学计算该桥剩余寿命,并给出确保外白渡桥使用安全的检测间隔和维修策略。     

Are we doing it wrong or do we expect too much? Forces that push authorities to become public transport designers

This paper presents a number of reasons that are responsible for the disappointment of authorities in their operators’ efforts to develop public transport (PT) to the advantage of their travellers. The lessons drawn in this paper are based upon the competitive tendering experience of the authors and upon the results of meetings organised with parties involved in competitive tendering and aimed at exchanging lessons. There appears to be three main causes: (1) there is freedom for the operator, but the contract is bad; (2) there is freedom for the operator, there is a good contract, but there is no market; and (3) there is freedom for the operator, but the operator is not able to use it. The paper concludes with a few perspectives for improvement.     

第五代集装箱船在黄浦江内掉头

第五代集装箱船来上海港面临的最大困难是在黄浦江内掉头。作者收集了第五代集装箱船的有关资料，结合黄浦江掉头区地理环境、风流影响、拖轮配置及掉头方式、掉头时机选择等。通过计算机模拟试验，经多次拟合，取得了不同条件下组合的操作要令。结合实际操纵，取得成功。本文将理论与实际操作结合，对港内操纵超大型船舶掉头提供了参考依据。     

浅谈公路监控系统的防雷

主要对监控系统遭受雷击损害的主要原因,以及可能的侵入途径作了初步的分析,同时对监控系统的防雷保护技术进行了相应的介绍.     

利用SCE组建安全可控网络

SCE（Service Control Engines）为Cisco服务控制引擎产品,是软硬件结合的服务控制平台,支持互联网IP流量的分类、分析和控制。简单介绍了SCE在网络中的组网方案,并详细阐述该设备在宽带网络中的不同应用。     

短时交通流预测方法研究进展

实时准确高效的交通流预测是实现交通流诱导和交通控制的关键技术之一,近年来它在智能运输领域受到广泛关注。本文首先介绍了短时交通流的属性和预测要求,接着将现有预测方法分成4类：基于线性理论的方法、基于非线性理论的方法、基于混合理论的方法和基于交通流理论的方法,并且总结评述了现有各种预测模型的优缺点,之后探讨了当今短时交通流预测领域的研究热点,最后指出了其未来研究方向．     

BRT and BHLS around the world: Explosive growth,large positive impacts and many issues outstanding

A survey of Bus Rapid Transit BRT and Bus of High Level of Service BHLS around the world indicates that there are about 120 cities with bus corridors, with 99 of the cities entering into the list in the last 12 years. The existing bus corridors comprise about 280 corridors, 4300 km, 6700 stations and use 30,000 buses, serving about 28 million passengers per day. In 2010–2011, 19 cities completed new systems − 16 in the developing world – and seven cities expanded their current systems. By late 2011, about 49 new cities were building systems, 16 cities were expanding their corridors, and 31 cities were in initial planning. This impressive growth may be attributed in part to the successes of Curitiba, Bogotá, México City, Istanbul, Ahmedabad and Guangzhou. These cities show low cost, rapid implementation and high performance BRTs, with significant positive externalities. Interesting trends are emerging, such as the implementation of citywide integrated bus systems, improved processes for private participation in operations, increased funding from national governments, and growth of bus manufacturers and technology providers. Despite the growth, there are some outstanding issues: BRT and BHLS do not have a single meaning and image and are often regarded as a “second best” as compared to rail alternatives. In addition several systems in the developing world suffer problems resulting from poor planning, implementation and operation, due to financial, institutional and regulatory constraints. The BRT and BHLS Industry are in their “infancy” and there is need for consolidation and concerted effort.     

漂浮起吊的海上风电安装平台设计关注点

针对具有漂浮起吊作业功能的海上风电安装平台面临规范和法规适应性方面的新情况,对有漂浮起吊功能的海上风电安装平台设计时应特别考虑的一些技术问题及处理办法进行了梳理,以期望给业界提供有益参考和借鉴。     

基于Inmarsat的数字通信软件CemailFax

CemailFax所必须的最低硬件配置为:一台有串口便携式个人电脑,一台Inmarsat终端。软件采用VC 编程实现,通过ADO数据库实现对用户的管理,通过串口编程实现对Inmarsat终端的控制以及数据传输。CemailFax实现了简单易懂的用户界面,实用的单机多用户机制,以及可以与国际同类软件相匹敌的数据传输速率。CemailFax与国际上同类软件相比,创新之处就在于被拨叫Inmarsat地面站可选和它的中文处理能力。     

Westfalia OSD新型分油机UNITROL系统的详细分析

详细介绍Westfalia公司的OSD新型分油机的UNITROL系统,着重分析UNITROL 系统的工作过程及控制信号,并适时与阿法拉伐分油机进行比较,最后分析了UNITROL系统常见故障,并提出了解决方案.由此得出结论,配备UNITROL系统的Westfalia OSD新型分油机具有更高的自动化程度以及分离效率.