浅议港口的精细化管理

<正>1992年联合国贸易与发展会议在《港口的发展和改善港口的现代化管理和组织原则》的研究报告中,把港口功能的发展划分为三代:第一代港口主要是指1950年以前的港口,其功能是为海运货物的转运、临时存储以及货物的     

93653部队开展“荣辱我来讲”即兴演讲活动

前不久，93653部队结合部队训练期间所发生的身边事、眼前事、平凡事，组织进行一事一议教育，开展了“荣辱我来讲”即兴演讲活动。该部利用训练间隙、开饭前后、课前5分钟、晚点名等时机，就部队发生的某一具体事，组织广大官兵踊跃登台进行辨是非、分美丑、知荣辱演讲，引导教育官兵把文明留在身边，     

广船国际计量理化无损检测中心通过国家实验室认可过程分析

本文介绍了广船国际计量理化无损检测中心依据《ISO／IEC17025：1999校准和检测实验室能力的通用要求》建立质量体系并获得国家实验室认可的过程。     

06款远舰 GL手动豪华版

作为和现代汽车索纳塔出自同一平台的起亚远舰，进入中国的市场已经落后了一步，而今年各厂家中级轿车纷纷推出新车型或者改款车型时，起亚自然不想再次落后，在价格未变的情况下带来更多配置的06款远舰也驶到我们面前。[编者按]     

三峡坝区突发事件应急预案生成技术研究

三峡坝区由于其独特的地理环境和社会影响,容易引发突发事件,给坝区、三峡航运和三峡工程本身带来危害.因此研究应急预案生成技术,制定三峡坝区突发事件应急预案是一项意义重大而又紧迫的任务.本文结合三峡坝区特殊的自然环境和社会环境,从应急预案生成的分类、分级标准、结构体系、构成预案的基本要素以及应急预案的生成原理和步骤等五个方面,来研究三峡坝区预案生成技术.     

DK—1列车电空制动系统

随着提速列车与准高速旅客列车的开行，列车电空制动技术的应用与推广已成大势所趋。文章通过对ＤＫ－１列车电空制动系统的介绍，帮助读者了解我国列车电空制动技术的现状。     

新会计准则对现有企业会计核算的影响

财政部于2006年2月发布通知,宣布从2007年1月1日起开始执行新的企业会计准则。对于现有企业的核算体系,新会计准则主要有三方面的变化,对企业的资产减值、可操纵的利润空间、债务重组方法方面产生影响,本文对此进行了深入的研究。     

Delay Restoration of Single-Track Railway Rescheduling

On the basis of analysis of the principle of delay restoration in a disturbed schedule, a heuristic algorithm for rescheduling trains is developed by restoring the total delay of the disturbed schedule. A discrete event topologic model is derived from the original undisturbed train diagram and a back propagation analysis method is used to label the maximum buffer time of each point in the model. In order to analyze the principle of delay restoration, the concept of critical delay is developed from the labeled maximum buffer time. The critical delay is the critical point of successful delay restoration. All the disturbed trains are classified into the strong-delayed trains and the weak-delayed trains by the criterion of the critical delay. Only the latter, in which actual delay is less than its critical delay, can be adjusted to a normal running state during time horizon considered. The heuristic algorithm is used to restore all the disturbed trains according to their critical details. The cores of the algorithm are the iterative repair technique and two repair methods for the two kinds of trains. The algorithm searches iteratively the space of possible conflicts caused by disturbed trains using an earfiest-delay-first heuristics and always attempts to repair the earliest constraint violation. The algorithm adjusts the weak-delayed trains directly back to the normal running state using the buffer time of the original train diagram. For the strong-delayed trains,the algorithm uses an utility function with some weighted attributes to determine the dynamic priority of the trains, and resolves the conflict according to the calculated dynamic priority. In the end, the experimental results show that the algorithm produces ＂good enough＂ schedules effectively and efficiently in disturbed situations.