工程设计与施工一体化模式及工作程序

介绍了设计施工一体化模式及其工作程序，论述了设计施工一体化模式的主要特点，并结合国外公路设计施工一体化具体项目实施，总结了设计施工一体化项目的工作程序和应注意的问题。     

Regulating transport’s environmental impacts in a deregulating world

In recent years, a growing awareness of the environmental impacts of transport has played a major part in the shift towards policies to manage the demand for travel. As a result, a substantial increase in the role of public transport has been identified as necessary in any strategy towards more environmentally sustainable transport patterns. At the same time there has been a quite separate process of deregulation and the withdrawal of the state from the transport market. These two trends appear to represent potentially contradictory processes. This article draws upon two major studies that explore the relationship between increasing needs for environmental regulation and the privatisation of bus and rail services. It is shown that, as currently organised in Britain, the development of bus and rail services are inadequately linked to strategic environmental policymaking and, rather than being part of the solution to transport’s environmental impacts, there is a real danger that these ‘green’ methods of transport could slide into simply being part of the problem itself. It is concluded that privatisation and deregulation does not mean the end of the need for policy mechanisms, but they do mean that policy has to be implemented in a very different way.     

The operation of Swedish motor-vehicle inspections: efficiency and some problems concerning regulation

Efficiency in the operation of the Swedish motor-vehicle inspection monopoly was examined by analyzing data on all decision-making units related to production of inspection services during 1993. In addition, theoretically based arguments concerning some regulation problems are discussed. The results imply a fairly high level of technical efficiency, which might be explained by the extensive practice of yardstick-competition in the industry. The findings, based on a best-practice approach, do not indicate strong empirical evidence in support of a deregulation of the industry. However, the regulation problems discussed may provide motives for deregulation.     

南京市老城环境整治若干问题的探讨

结合南京市老城环境整治工程实践,探讨老城改造和新区建设的规划设计理念以及具体实施中若干原则问题,从而建设独具特色的城市生态交通空间,创造和谐、自然的人居环境。     

模糊控制在二次调节静液传动车辆中的应用

介绍一种二次调节静液传动车辆和其车速控制原理，并根据实际情况建立了整个系统的数学模型。提出一种带修正因子规则的模糊PID控制，分别用这种控制器和常规PID控制器对阶跃信号和车辆的15工况进行仿真分析。结果表明：采用模糊PID控制具有响应速度快，调节时间短等优点，更能满足实际车辆的驾驶要求。     

碎石桩复合地基模型试验

以相似理论为基础，设计并完成了一组较大型的室内碎石桩复合地基模型试验，获得了许多有益的试验数据。通过对试验资料的分析，得到了碎石桩复合地基孔隙水压力、桩土应力比的变化关系，并在此基础上，对碎石桩复合地基作用机理进行了深入探讨。     

PBRRI： A Hybrid Peer-to-Peer Communication Model in Distributed Systems

In distributed systems independent agents need to interact with each other to accomplish their task. Modern peer-to-peer computing technologies always concern with enabling interaction among agents and help them cooperate with each other. But in fact, access control should also be considered to limit interaction to make it harmless. This paper proposed a proxy based rule regulated interaction (PBRRI) model. Role based access control is introduced for security concerns. Regulation rules are enforced in a distributed manner so that PBRRI can be applied to the open distributed systems such as Internet.     

航道整治工程软体排压载体的水力特性

软体排是航道整治工程中的基础结构,其水力特性直接影响航道整治工程的护滩效果。通过建立水槽模型,研究软体排压载体附近流场结构、回流区长度、近底流速、紊动流场、切应力等水力特性。结果表明,设置软体排压载体后,近底流速和回流区流速减小,上层流速和水流纵向紊动强度增加,近底层的切应力则明显减小。压载体的设置有利于调节近底水流流态、促进泥沙落淤,提高工程边滩守护效果。     

路基石方控制爆破施工方法及施工控制

该文对路基石方控制爆破施工实践进行了分析总结,探讨了路基石方控制爆破施工中应注意做好的重点工作,可为同类工程施工控制提供借鉴。     

公路施工企业固定资产管理与内部会计控制

文章从公路施工企业固定资产的管理现状出发,分析了当前企业所存在的问题,提出了健全和完善固定资产管理的对策和思路。