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介绍中国科学技术部与德国联邦交通、建设和住房部在签署磁悬浮铁路技术领域开展交流与合作的备忘录基础上，由中国科技部高新司能源交通处和德国联邦交通、建设和住房部磁浮项目处具体组织的双边合作与交流.通过多次工作会议，双方交流了上海项目和德国磁浮项目的进展情况并推动安排了一些合作项目，包括支持上海线单线示范运行的安全认证与审批，TVE线和上海磁浮示范线噪声对比测试，上海线磁浮列车运行舒适性，会车空气动力测试等合作项目.双边交流与合作对于上海线的建设和磁浮技术的进一步研发都起到了积极的推动作用.     

基于SMS和WAP的移动政务系统的设计与实现

介绍了一个基于SMS和WAP协议的移动政务系统的框架结构和实现方法.整个系统利用ASP SQL Server2000进行开发,结合COM的特性,很好地实现了政务公开的途径.     

非政府组织的兴起及其作用

非政府组织作为政府和企业以外的社会组织的第三种形式之一，在当前人类社会活动的不同领域正在发挥着其不可或缺的日益重要的作用。非政府组织概念最初由联合国首先加以使用，并对其合法性做了严格的界定。近些年来，非政府组织在我国也开始发展起来，并且已经在一些社会问题突出的领域，如环境保护、扶贫帮困等方面，发挥其特有的重要作用。随着公共管理的健全和发展，非政府组织应作创新发展。中国作为有重要地位的、在国际上负有重要责任的大国，其非政府组织也应在国际性的活动中发挥与之相应的作用。     

拖带船队撞击钢围堰防撞墩的数值模拟分析

拖带船队是京杭运河中的重要船型之一,运河中船桥相撞击事故时有发生.为了探讨拖带船队对运河桥梁桥墩的撞击作用,以便更好地设计运河桥墩的防撞设施,该文利用ANSYS/LS-DYNA软件建立了拖带船队和钢围堰填土防撞墩的有限元计算模型,模拟计算了拖船与防撞墩之间的撞击作用,得到了撞击力和撞击能量时间历程的合理规律,可供运河桥墩的防撞设施设计参考.     

Local Polynomial Estimation of Distribution Functions

Introduction It is always a focus for statisticians to estimateand predict the function and the related informationusing sample data in the situation without knowing thedistribution function. LetX1,X2,…,Xnbe a samplefrom a population with distribution fu…     

Heuristic search for the coupled runway sequencing and taxiway routing problem

This paper presents the first local search heuristic for the coupled runway sequencing (arrival & departure) and taxiway routing problems, based on the receding horizon (RH) scheme that takes into account the dynamic nature of the problem. As test case, we use Manchester Airport, the third busiest airport in the UK. From the ground movement perspective, the airport layout requires that departing aircraft taxi across the arrivals runway. This makes it impossible to separate arrival from departure sequencing in practice. Operationally, interactions between aircraft on the taxiways could prevent aircraft from taking off from, or landing on, runways during the slots assigned to them by an algorithm optimizing runway use alone. We thus consider the interactions between arrival and departure aircraft on the airport surface. Compared to sequentially optimized solutions, the results obtained with our approach indicate a significant decrease in the taxiway routing delay, with generally no loss in performance in terms of the sequencing delay for a regular day of operations. Another benefit of such a simultaneous optimization approach is the possibility of holding aircraft at the stands for longer, without the engines running. This significantly reduces the fuel burn, as well as bottlenecks and traffic congestion during peak hours that are often the cause of flight delays due to the limited amount of airport surface space available. Given that the maximum computing time per horizon is around 95 s, real-time operation might be practical with increased computing power.     

滨港铁路沾化至滨州港段接轨方案研究

滨港铁路沾化至滨州港段是滨港铁路的二期工程,拟在一期工程终点站沾化站附近接轨。由于沾化站的位置、站型等特殊条件,使接轨方案的选择成为影响线路总体方案的重要因素。通过研究主要货流方向、接轨站条件、工程费及运营费、城市规划等诸多因素,结合线路走向的选择,经过技术经济比选,最终确定合理的接轨方案。     

论建设工程质量政府监督管理机制

建设工程质量政府监督管理机制是构成市场要素之间的相互制约关系.健全的法制体系是市场运转的基础,发达质量监督信息系统有效运行的手段,完善的制度是市场行为规范的前提,监督机构内外部约束循环机制是市场竞争健康发展的动力.     

机制创新与城市无障碍环境建设——以上海市无障碍出租汽车阳光车队为例

通过对上海市无障碍出租汽车阳光车队的调查研究,探讨如何通过机制创新加快城市无障碍环境建设。首先介绍了阳光车队的组建背景、运作模式、服务方式以及技术运用。指出阳光车队的现实意义,即通过公共部门、私人企业以及社区之间的合作,调动社会资源为残疾人提供公共服务,是保障重度肢体残疾人群体出行权利的有益尝试。分析阳光车队存在服务对象范围小、服务时间有限制、运营成本高、财政补贴不合理等方面的问题。针对这些问题,对促进阳光车队发展提出若干政策建议：明确政府责任、优化运营管理、进行技术改进。     

A heuristic model for frequency planning and aircraft routing in small size airlines

The flight schedule of an airline is the primary factor in finding the most effective and efficient deployment of the airline's resources. The flight schedule process aims at finding a set of routes with associated aircraft type, frequency of service and times of departures and arrivals in order to satisfy a specific objective such as profit maximization. In this paper, we develop a two‐phase heuristic model for airline frequency planning and aircraft routing for small size airlines. The first phase develops a frequency plan using an economic equilibrium model between passenger demand for flying a particular route and aircraft operating characteristics. The second phase uses a time‐of‐day model to develop an assignment algorithm for aircraft routing.