机车感应电台运用中的问题探讨

在 DJ 型交直交电力机车上安装400kHz 感应电台后,电台运用不良。原因在于 DJ 型电力机车受电弓对接触网上的传输信号有旁路作用,同时机车的高压供电回路产生的交流谐波分量很多,因而产生较大的干扰信号,对感应电台产生的有用信号有较强的干扰所致。经改造,在供电回路加装400kHz 信号阻波器后,电台使用正常。     

微表处技术在路面大修中的应用

介绍微表处技术在黑大202线路面大修中的应用,实践证明微表处应用于路面大中修既节约了工程费用,又达到了预期目的,是成功有效的好方法.     

JX4数字摄影测量工作站空三加密软件的开发应用

介绍了对JX4数字摄影测量工作站GXP -AAP空三加密软件在铁路数字化测图工程中的开发和应用情况 ,得出了相应的生产作业方法及经验体会     

No.7信令监测系统及应用

介绍了No．7信令监测系统的结构及应用。该系统提供了一个良好、快捷的网间通信监督平台，实时监测网间呼叫，解决互联互通问题。     

低等级公路特长隧道半横向通风应用与探讨——九寨仙境隧道通风设计

双向行车的隧道通风,除了维持洞内空气的卫生标准和规定的视距外,还必须有利于火灾时的排烟和人车避难,这在特长隧道是很困难的。我国已建成的4 km以上的双向行车隧道,均采用有平行导洞的纵向式通风,但此种方式缺点很多。文章吸取了国外经验,提出采用半横向式通风,并对此种通风方式提出了一些改进意见及推导了应用公式。     

谈勘察设计企业全面预算管理

全面预算管理在国内外企业中已经取得了成功.勘察设计单位改制后也应引入全面预算管理,实现集团化发展的战略目标.对全面预算管理的内涵及在勘察设计单位中的应用过程进行了探讨.     

土工格栅技术在高速公路软土路基处理中的应用

对双向加筋复合土工格栅的应用及施工工艺,结合津汕高速公路具体工程做了较为详尽的阐述,通过使用土工格栅,保证了软基不软、涵洞不沉,压实度达到高标准.     

清障车作业装置常见的结构形式和应用

清障车是装备有起重、托举、拖曳等设备,用于清除道路障碍物的专用汽车。分别介绍了托吊分离型、托吊联体型和平板背拖型清障车作业装置常见的结构形式和应用。     

A list of accident scenarios for three legs skewed intersections

The term ‘scenario’ is used in the safety field to designate a prototype or a model of an accident process characterised by chains of facts, actions, causal relations and consequences in terms of damage to people and property. The prototypical scenarios, properly realized, provide a basis on which to consider the action to be taken, but also a concrete backup for accident information for use in information campaigns or training. The objective of this study is to define the prototypical accident scenarios for a particular configuration of road intersection: the skewed intersection. Limited sight distance at skewed intersections leads to safety issues. A non-skewed intersection provides the best operating conditions as drivers can easily sense the direction in which they are travelling, estimate the speeds of the opposing traffic and smoothly complete a maneuver in shorter time. In skewed intersections, instead, the ability of drivers to recognize any conflicting vehicles diminishes in comparison to right-angle intersections. The logical-deductive approach used in this paper for the determination of accident scenarios is based on an analysis of a large database of incidents, which occurred on several roads in eastern Sicily on 35 skewed intersections at three-legs. The skew angle of the minor leg of all the intersections studied is between 15° and 20°. This research allowed to develop accident scenarios related to particular configurations of intersections, compatible with the Italian rules. Prototypical scenarios are constructed using samples of accidents occurring on a particular type of study area, especially when they are based on files from in-depth investigations. The method used is an inductive approach, based on an examination of each case, grouping together similar cases and building a prototypical scenario using this case grouping. From the in-depth analysis of database accidents 9 prototypical accident scenarios have been identified for the skewed intersections.     

EPON技术浅析

简要介绍了以太网无源光网络（EPON）技术的特点和应用优势，以及铁通广州分公司利用EPON优化改造宽带接入网的方案，阐明了EPON是实现光纤宽带综合接入的优良技术。