基于区域联锁的CTC分机方案研究与建模

提出一种基于区域计算机联锁的调度集中(CTC)分机结构和方案。研究了中心站设置CTC分机和区域联锁的前提下,根据列车运行调整计划自动控制不同区域的联锁进路;将区间中继站或无道岔车站的进路控制纳入中心站,实现中心站对相邻区域进路控制范围扩展;为提高区间列车进路安全控制水平,将区域内区间信号控制纳入到联锁控制范围。最后采用UML建立了区域联锁CTC分机的用例图和序列图的模型。     

牵引回流对不落轮镟修的危害及对策

通过分析牵引回流对不落轮镟修作业危害现象产生的原因及形成机理,提出优化设计方案,供工程设计参考。     

秦巴山区婴幼儿营养状况及其母亲KAP问卷调查分析

目的　了解秦巴山区婴幼儿的营养状况。方法　采用整群分层抽样法进行横断面调查 ,测量婴幼儿的身长和体质量 ,用WHO/NCSH参考标准对婴幼儿的营养状况进行评价。同时对其母亲进行知识 态度 行为 (KAP)问卷调查。结果　婴幼儿生长迟缓、低体质量和消瘦的患病率分别为 17%、2 5 .5 %、7.2 % ;母亲中普遍存在营养知识欠缺 ,喂养方式不当。结论　该地婴幼儿整体营养状况较差 ,以急性营养不良表现为主。应积极开展营养健康教育 ,提高母亲科学喂养水平     

船舶在实施ISPS规则中存在的问题及对策

从船舶保安等级的确定,对船舶限制区域的控制,船舶保安演习的开展,PSC对船上保安的监督管理等方面说明实施ISPS规则对船上工作的要求；并根据船上在实施保安规则过程中存在的问题,提出做好船上保安工作的对策与建议。     

Collecting a multi-dimensional three-weeks household time-use and activity diary in the Bandung Metropolitan Area,Indonesia

This paper describes a comprehensive panel data collection and analysis at household level, including detailed travel behaviour variables and comprehensive in-home and out-of-home activities, individual cognitive habits and affective behaviours, the rate of physical activity, as well as health related quality of life (QoL) information in the Bandung Metropolitan Area (BMA) of Indonesia. To our knowledge, this is the first attempt to collect an individual’s activity diary over an extended period as it captures the multi-tasking activities and multidisciplinary factors that underlie individual activity-travel patterns in a developing country. Preliminary analyses of the collected data indicate that different beliefs, anticipated emotions, support and attachment to motorised modes significantly correlate with different groups of occupation, gender, age, activity participation, multi-tasking activities, and physical health, but not with different social and mental health. This finding highlights the reason why implementing car reduction policies in Indonesia, without breaking or changing the individual’s habits and influencing his/her attitudes have not been fruitful. The results also show that endorsing more physical activities may result in a significant reduction in the individual’s motorised mode use, whilst individuals who demonstrate a tendency to use their spare time on social activities tend to have better social health conditions. Furthermore, undertaking multi-tasking out-of-home discretionary activities positively correlates with better physical health. All these highlight the importance of properly understanding and analysing the complex mechanisms that underlie these fundamental factors that shape individual daily activity-travel patterns in developing countries. This type of multidisciplinary approach is needed to design better transport policies that will not only promote better transport conditions, but also a healthier society with a better quality of life.     

Remote Sensing for Coastal Area Management in China

Satellite remote sensing technique has been used to observe the coastal area. This article reviews applications of remote sensing to coastal area management (CAM) in China. These applications include the coastal resource and island mapping, coastal environmental change and coastal hazard monitoring, oceanographic parameter measurement, and coastal process restudy. Future applications are also discussed.     

弹性分组环缓存容量研究

弹性分组环（RPR）是当前城域网发展的重要方向，是为了满足基于分组的城域网的要求而设计的。为了实现基于优先级区分的业务服务质量，弹性分组环采用了基于优先级区分的队列以及转发机制。与传统的队列延时研究方法不同，弹性分组环中的业务接入以及转发延时与当前网络中的拥塞状况密切相关。本文基于弹性分组环协议，建立了弹性分组环转发缓存和接入缓存的排队模型，对弹性分组环中的业务接入时延以及转发队列时延做了定量的分析计算；进而得到弹性分组环中各类优先级转发及接入缓存所需要的容量；利用仿真工具建立了RPR网络的排队传输模型，并进行了仿真验证。仿真结果和理论分析的结果非常接近，从而验证了所建立排队模型的正确性，能够为网络业务配置提供有效的参考；各级缓存容量的结论已经应用在弹性分组环的专用芯片设计之中。     

天津临港工业区与海滨大道相交节点交通分析

该文对天津临港工业区的交通出行需求进行了分析,阐述了环绕渤海的海滨大道对临港工业区交通出行的重要性,并对临港工业区主要出行道路与海滨大道相交的各个节点进行了详细介绍,论证了海滨大道的建设与临港工业区交通需求的相互依托关系,实现了区域交通与过境交通的分离。     

城域网光传送技术及应用

城域传送网是近年来传送网建设的重点,通过城域光传送技术的发展演进,对光传送技术在城域网中的应用进行了具体分析.     

朝阳地区普通公路危病桥梁成因分析及整治措施

分析了朝阳地区危病桥梁的成因，总结归纳了病害的主要特征，在此基础上，对部分桥梁病害的整治措施提出了几点建设性意见，以供业内人士参考。