“先锋”号电动车组控制系统

简要介绍了“先锋”号交流传动动力分散电动机组控制系统研制情况，系统构成与功能和数据流程，最后总结了控制系统的效果和存在问题。     

Development and Evaluation of a High Voltage Supply Unit for Electrorheological Fluid Dampers

Controllable dampers using electrorheological (ER) fluids have attracted considerable interest in recent years. They are proposed for use in semi-active suspensions for ground vehicles. The main advantages of ER fluid dampers are their fast response, ease of control, simple construction and low power requirements. This paper describes the development and testing of a high-voltage supply unit for modulating the damping force of an ER fluid damper. Experimental results on the vibration isolation characteristics of an ER fluid damper with different control strategies, obtained using a quarter-car model test rig, are also presented.     

楚玛尔河沿岸桥梁施工中的地质问题

从楚玛尔沿岩地区的地质情况着手 ,分析该地区由于铁路桥梁施工可能带来的或由此产生的工程地质问题 ,并提出相应的处理措施     

铁路站场排水系统设计探讨

简要介绍铁路站场排水系统的分类、特点和适用条件,探讨系统的选择和减少埋深的方法。解决设计中容易出现的问题,包括排水出路的选择不可靠;流量计算中,设计参数的选取不准确;水力计算与工程实际不符;基础埋深太浅影响使用寿命,地板太厚增加投资等。     

我国高速列车动力相对分散方式方案初探

通过深入分析主速列车动力集中与动力分散两种动力配置方式的特点。阐明了动力分散配置方式也能适应中国国情的观点。     

A dynamic CSTT model for the effects of added nutrients in Loch Creran, a shallow fjord

Despite a tendency for the complexity of physical–biological models to increase, simple coupled models remain useful for some applications and can provide insights into crucial links between physical and biological processes. This argument is illustrated with an account of a simple 3-box model intended to help assess the capacity of fjords to assimilate nutrients from fish farms. The model, a dynamic version of the UK “Comprehensive Studies Task Team” (CSTT) steady-state model for eutrophication, was applied to Loch Creran (Scottish Western Highlands) and was implemented using Stella 8 and tested using historical data from 1975 (before the installation of a salmon farm) and field data collected in 2003, during the period of operation of the farm. The model's biological state variables are chlorophyll, dissolved inorganic nitrogen (DIN) and dissolved inorganic phosphorus (DIP), and it includes a simple run-off model to convert rainfall into river discharge. The physical processes involved in exchange between the loch and the adjacent waters of the Firth of Lorne were parameterised as a constant daily exchange rate.Between 1975 and 2003, local inputs of nutrient increased but, despite this, there was little apparent increase in nutrient concentrations in the loch, and observed chlorophyll concentrations decreased substantially. Model simulations of chlorophyll and DIN agreed well with observations in 1975, as did DIN simulations in 2003. However, simulated chlorophyll was overestimated in 2003.Some of the agreement between observations and simulations come from the use of observed boundary conditions to force the model. However, even when boundary conditions are subtracted from simulations and observations, the simulations in most cases retain a significant correlation with observations, demonstrating that the model's ‘interior’ processes do add to its ability to replicate conditions in the loch.     

车载信息装置系统分析

本文探讨用系统分析方法指导车载信息装置（OBU）开发的必要性和一般步骤，并以ITS子系统之一“交通需求管理及路线引导系统”为例，给出了OBU系统分析实例。     

圆梁山隧道深埋充填粉质粘性土溶洞注浆加固技术

本文较详细地介绍了渝怀铁路圆梁山隧道毛坝向斜高压富水区DK354 255～ 280深埋充填粉质粘性土溶洞的注浆加固技术及其具体施工工艺过程，有效地降低了隧道工程中发生串浆的频率，能确保注浆加固效果，是一种值得推广的方法。     

气雾消毒剂乙型肝炎表面抗原灭活效果试验研究

乙型肝炎表面抗原灭活试验是目前评价消毒剂杀灭乙肝病毒的简便易行的试验方法,分为悬液法和载体法。用它们对适合于空气及表面消毒的B、C型复合消毒雾剂进行评价。悬液法结果为:B型消毒液作用2min可将HBsAg灭活,C型消毒液作用5min达此效果,室温贮存1年,两型消毒液仍可在5min内破坏HBsAg抗原性。载体法结果显示,两型消毒液对载体上抗原的灭活时间均有所延长。     

物流学的应用

Paul French上海报道，随国内日趋壮大的消费队伍电器购买需求的增长，激烈的价格战已经侵蚀了大量利润，而更加完善的物流和分销手段也许正是解决这一问题的关键所在。[编按]