An application of centralized data envelopment analysis in resource allocation in container terminal operations

This paper presents an application of centralized data envelopment analysis (CDEA) to analyse the performance of a number of container terminals supervised by one liner shipping company. It provides a systematic and centralized perspective of resource reallocation based on one company’s perspective. The numerical results show that two of the five dedicated terminals are, by and large, efficient, but the other three need resources to be reallocated. Under the minor adjustment scenario, the liner shipping company should reduce the aggregated amount of the labour cost and the hauling equipment should be transferred to different terminals in America. Under the major adjustment scenario, both the labour and hauling equipment could be reduced.     

综合数据处理系统在津滨轻轨中的应用

结合综合数据处理系统在津滨轻轨工程中的应用实例，提出城市轻轨项目信息集成与综合处理的解决方案，并进一步探讨系统在设备综合维护管理方面的扩展应用。     

面向不同管理需求的交通基础设施养护数据平台建设

为了掌握交通基础设施技术状况、服务于养护技术经济指标分析,基于不同层级管理目标的信息化需求,通过详细分析不同层级需求的数据及其来源,设计了可服务于不同管理层级并用于管理主体交互的基本数据组成、获取和更新路径。此外,以数据设计为基础,展示了数据平台应用于申嘉湖高速公路的管理案例。     

变时窗滤波技术压缩瞬变电磁测深数据

研究目的:对采样密度高、数据量大的等间隔瞬变电磁测深数据进行反演解释时,必须对数据进行无损滤波和压缩,得到反映信号衰减规律的不等间隔类对数采样瞬变电磁测深数据.本文特对此进行研究.研究结论:在瞬变测深晚期,尽管数据信噪比非常低,利用变时窗滤波技术仍然可以获得符合规律的瞬变衰减曲线.因此,变时间(时窗)依赖滤波方法是对密度非常大的等间隔瞬变电磁测深数据进行无损压缩的良好工具.     

列车轮对超声波探伤中的数据缓存技术研究

为了解决列车轮对超声波探伤中的高速AD(模数转换芯片)与USB 2.0接口的数据传输瓶颈,使用FPGA(现场可编程门阵列)编制了一种SDRAM(同步动态存储器)控制器,并且通过切换bank、自动预冲和集中刷新,将AD实时采集来的数据进行连续存储,为接下来的USB 2.0传输环节的传输速率留下了裕量.     

基于OBDⅡ系统监测信息的故障分析方法

第二代车载诊断系统——0BDⅡ系统是根据有关系列化标准、以诊断标准化为目的而开发的车载诊断系统。在概要介绍OBDⅡ系统功能、特点和监测机制的基础上，系统地论述了应用故障码和检测数据进行故障诊断的原理、条件与步骤。     

军用移动电源电气控制设备网络化数据采集系统的设计

分析了军用移动电源电气控制设备网络化数据采集系统设计的整体思想，介绍了数据采集测试单元硬件组成和软件结构设计，以及网络化测试系统硬件技术实现和软件技术实现，以其对军用移动电源电气控制系统故障诊断远程化提供一种方法。     

Validating the results of a route choice simulator

This paper describes the validation of a route choice simulator known as VLADIMIR (Variable Legend Assessment Device for Interactive Measurement of Individual Route choice). VLADIMIR is an interactive computer-based tool designed to study drivers’ route choice behaviour. It has been extensively used to obtain data on route choice in the presence of information sources such as Variable Message Signs or In-Car Navigation devices. The simulator uses a sequence of digitized photographs to portray a real network with junctions, links, landmarks and road signs. Subject drivers are invited to make journeys between specified origins and destinations under a range of travel scenarios, during which the simulator automatically records their route choices. This paper describes validation experiments carried out during the period Summer 1994 to Autumn 1995 and reports on the results obtained. Each experiment involved a comparison of routes selected in real life with those driven under simulated conditions in VLADIMIR. The analysis included investigation of the subjects’ own assessment of the realism of the VLADIMIR routes they had chosen, a comparison of models based on the real life routes with models based on VLADIMIR routes, and a statistical comparison of the two sets of routes. After an extensive series of data collection exercises and analyses, we have concluded that a well designed simulator is able to replicate real life route choices with a very high degree of detail and accuracy. Not only was VLADIMIR able to precisely replicate the route choices of drivers who were familiar with the network but it also appears capable of representing the kind of errors made and route choice strategies adopted by less familiar drivers. Furthermore, evidence is presented to suggest that it can accurately replicate route choice responses to roadside VMS information.     

LonworksTM技术在同步器寿命检测试验台远程监控系统中的应用

本文分析控制系统的结构、原理及控制流程，提高未来对汽车零部试验台控制系统的一种发展方向，即通过智能化网络数据采集与过程控制系统，真正做到在办公室内控制现场设备，察看运行情况，记录运行过程并适时进行调整。基于Lonworks^TM技术的系统是一种可以实现从现场设备到用户操作的监控系统。     

内燃机瞬态热力参数采集与分析系统的开发

介绍了开发的一种新型 4路模拟量同时转换的内燃机瞬态热力参数采集与分析系统。详细阐述了该系统的结构、工作原理、特点及软件设计 ;并对实测采集结果进行了举例分析