乌鞘岭隧道F_7断层围岩工程特性及工程措施研究

从区域大地构造、区域地质构造、活动断层、极高地应力、软弱围岩、支护措施、施工方法等方面分析了造成F7断层带隧道大变形的原因,针对活动断层带隧道大变形防治中有关技术问题对设计思想进行探讨,总结出活动断层带隧道设计要解决的关键技术问题。     

Valuation of externalities through neo-classical methods by including institutional variables

Externalities are uncompensated influences that are not expressed in a market but that affect the production possibilities or the welfare level of third parties. An example is the noise pollution in airport areas. Although air transport is an important source of economic growth and employment in many countries, the social and environmental problems connected with this sector are rising rapidly. Consequently, airports are becoming a matter of concern to many politicians. On what kind of values should they base their decisions as to further growth or consolidation of the current situation? In this paper we discuss two approaches, one based on mainstream, neo-classical, economics, and one based on institutional approaches, more in particular new institutional economics, which can be seen as a development complementary to the mainstream.     

难切削材料加工技术问答(续完)

在不锈钢上攻丝比在普遍钢材上攻丝要困难得多。由于扭矩大，经常出现丝锥被“咬死”、崩齿或折断，以及螺纹表面不光、乱扣和丝锥磨损严重等现象。因此，攻制不锈钢螺纹时应采取相应的技术措施加以解决。     

坚定信心抓住机遇全面推进总公司的改革发展

1认清形势,坚定信心,进一步巩固和开拓市场 2004年,我们经受了集采专供过渡期短短一年、转瞬即逝的严峻考验,经受了宏观调控、市场剧烈波动的严峻考验,经受了资源和煤电油运全面紧张的严峻考验,经受了主要用户和生产商同时挤压流通业利润空间的严峻考验.经过一年的努力,我们走出了总公司"二次创业、快速发展"的新路子,实现了由"官商"向社会自由商身份的转变.我们在风浪中学会了游泳,在竞争中实现了发展,成绩来之不易.一年的实践更坚定了我们走向市场的信心.     

天津滨海轻轨列车监控系统的设计与实现

天津滨海轻轨连接天津市区和滨海开发区。全长45km．设计列车最高运行速度为100km／h。行车间隔最小可达到150s，正线运行车辆多。为保证列车安全、快捷、正点、高密度不问断地运行。以及高速运行下调度指挥的高效、迅达；作为ATC（列车自动控制）系统中的管理级。ATS系统对调度员调整列车运行计划起着重要的作用。     

遥感技术在铁路勘察选线中的应用

介绍了遥感技术的发展趋势和ERDASIMAGINE软件系统,对遥感技术在铁路勘察选线应用中的生产作业流程、应用方法以及应用效果进行了探讨。     

上海地铁9号线120 km/h线路技术标准研究

介绍上海地铁9号线一期工程(设计速度为100~120 km/h)的线路主要技术标准,以及线路最小曲线半径、缓和曲线长度、不设缓和曲线两圆间夹直线长度、竖曲线半径的分析计算。     

Eddies around Madagascar — The retroflection re-considered

The Agulhas Current with its retroflection and attendant eddy-shedding is the cause of some of the greatest mesoscale variability in the ocean. This paper considers the area to the south and east of Madagascar, which provides some of the source waters of the Agulhas Current, and examines the propagating sea surface height signals in altimetry and output from a numerical model, OCCAM. Both show bands of variability along the axis of the East Madagascar Current (EMC) and along a zonal band near 25°S. Sequences of images plus associated temperature data suggest that a number of westward-propagating eddies are present in this zonal band. The paper then focuses on the region to the south of the island, where ocean colour and infra-red imagery are evocative of an East Madagascar Retroflection. The synthesis of data analysed in this paper, however, shows that remotely observed features in this area can be explained by anticyclonic eddies moving westward through the region, and this explanation is consistent with numerical model output and the trajectories of drifting buoys.     

Neptune轮机模拟器的功能及应用

介绍了NORCON公司研发的Neptune模拟器的主要功能及功能的设计方案,剖析了其搭建框架,分析其故障设置及评分体系的机理,从而阐述了先进模拟器的现状、发展水平及趋势。     

利用车载动态检测系统提高线路维修质量

文章介绍利用车载动态检测系统的功能,实现线路检查与数据传输同步性,利用分级预警机制,对施工地段实时监控,该系统在安全生产中发挥了重要作用。