限行措施对居民出行的影响及其有效性分析

为解决北京市的拥堵问题,北京城市交通管理部门自2008年起先后施行了不同的限行措施.本文通过问卷调查的方式,来分析这些限行措施对北京市居民出行的影响以及这些措施的有效性.调查结果显示,限行措施改变了人们的出行方式,一些有私家车的居民将出行方式转移到了公共交通上.通过分析近年来路面机动车变化数量、限行为人们的节约的出行时...     

TDCS网络维护及故障分析

TDCS网络是一个内部企业生产网，网络故障将直接影响到TDCS系统信息交换的实时性和有效性，从而对铁路运输的安全与效率造成负面影响。结合实际应用中遇到的故障情况，对TDCS网络的故障原因及维护方法做一分析介绍。     

基于ANSYS的预应力混凝土斜拉桥的徐变计算

采用按龄期调整的有效模量法,对考虑混凝土徐变效应的ANSYS分析程序进行了编制。并计算了离石高架大桥在各个悬臂状态下的徐变变形,将计算结果与实际施工监控中采用BSAS程序的计算结果进行了比较,验证了程序的正确性。     

船舶动力机械隔振设计中的功率流方法与效果评估

通过一个柔性基础上安装电机的隔振系统实例,计算其通过隔振器的功率流,应用功率流传递谱对其隔振性能进行分析评估,并附带研究了电机槽频频段的振动隔离问题,探讨了功率流分析在隔振设计中的可行性,以及功率流评估指标与振级落差指标之间的内在联系。     

增强高职高专学生党支部组织生活实效性

高职高专学生党支部的组织生活是学生党建工作的重要内容,是党组织对党员进行教育、管理、监督的重要形式,也是保持党员先进性的一项重要措施.高职高专院校学生支部的组织生活总体上是有序的、规范的,但也存在一些不足,针对这些存在的问题,提出几点建议,切实提高高职高专学生支部组织生活的实效性.     

广西地区高速公路沥青路面养护措施评价研究

针对目前广西地区高速公路沥青路面养护状况,文章依托实体工程,通过路面养护数据和使用性能检测数据的收集、整理和分析,对微表处、不同厚度的铣刨重铺等常用沥青路面养护措施的使用效果进行评价,其对广西地区高速公路沥青路面养护方案的制定具有借鉴意义。     

交通信息的有效性研究

交通信息的有效性是指交通信息能否有效的提高现有道路交通网络的使用效率。在采用线性费用函数的前提下,使用确定性用户平衡(UE)和随机用户平衡(SUE)两种交通分配模型,分析实时交通信息对简单交通网络的影响,证明交通信息的提供能否有效提高现有路网的使用效率,取决于路网的通行能力等实际状况,与网络内的交通流量无关,而且交通流量的变化,不会引起路网内个人行驶费用节省量的根本性变化。最后的两个实例证明文中结论的正确性。     

The Effectiveness of Coastal Zone Management in the United States

The Coastal Zone Management Effectiveness Study was undertaken between 1995 and 1997 to determine how well state coastal management programs in the United States were implementing five of the core objectives of the U.S. Coastal Zone Management Act (CZMA). The five core objectives studied were: (1) protection of estuaries and coastal wetlands; (2) protection of beaches, dunes, bluffs and rocky shores; (3) provision of public access to the shore; (4) revitalization of urban waterfronts; and (5) accommodation of seaport development (as an illustration of the policy to give priority to coastal-dependent uses). Separate articles in this issue of Coastal Management report the findings of the five studies, each dealing with one of the core objectives. Each of the articles assesses issue importance, processes and tools used, and the limited outcome data available for that objective. This article provides an overview of the purposes of the study, the methodology used, the summary findings of each study, and overall conclusions and recommendations of the study team. State coastal programs are found to be effective in addressing the five CZMA objectives examined, but this conclusion is based on very limited information about program outcomes. A more definitive conclusion will require better outcome information. Coastal managers in the United States have not agreed upon indicators of success, which severely inhibits systematic and sustained collection of outcome information. A national outcome monitoring and performance evaluation system is recommended to address these deficiencies and allow better determinations of program effectiveness in the future.     

Protecting Estuaries and Coastal Wetlands through State Coastal Zone Management Programs

This article, one part of the National Coastal Zone Management Effectiveness Study, evaluates the effectiveness of state coastal management programs in protecting estuaries and coastal wetlands. State programs were evaluated in a four-step, indicatorbased process to estimate (1) the relative importance of the issue; (2) the potential effectiveness of programs based on the policies, processes, and tools used; (3) outcome effectiveness based on on-the-ground indicators; and (4) overall performance, where outcome effectiveness was compared to issue importance and potential effectiveness. State evaluations were synthesized to provide a national perspective on CZM contributions and effectiveness in estuary and wetland protection. Although on-the-ground outcome data were sparse, they were sufficient to determine at least probable levels of effectiveness for about one-third of the states. Of these states, 80% were performing at expected or higher levels, considering how important the issue was in their state, and the scope and strength of the policies, processes, and tools they had deployed. Monitoring and record keeping, freshwater wetland management, and the use of nonregulatory restoration in coastal management were common program weaknesses. The evaluation approach and indicators used here are recommended as a starting point for designing a national monitoring and performance evaluation system addressing this CZM objective.     

津北制药厂灭菌锅爆炸事故分析：兼论违章行为心理

违章操作是违章行为的表现，但违章行为的内函和外延极其广泛。为了杜绝违章行为，寻求安全、高效的生产目的，必须对违章行为进行具体分析。任何一项违章行为，不仅有职工的问题，也有领导行为有效性的问题，为了提高领导者的影响力，在措施设计时，应运用目标融合原则，变约束力为激励力量。