信息技术在内河集装箱码头管理中的应用

内河集装箱码头在经营管理模式上有其特殊性,生产作业流程不完全依据港口国际集装箱作业流程。信息管理系统着重在集装箱的运作管理、与外部信息交换系统和商务计费系统这几个方面,重点解决系统的"信息孤岛"、检查桥未能履行闸口职能、集装箱堆场场位不准、现场作业信息的反馈、不能与外部共享信息数据等问题。     

An Epsilon Bargaining Game-Theoretic Formulation Between Carrier and Container Terminal Operators for Servicing Vessels During Unloading Operations

Due to globalization trends and the increasing competition between ports, the maritime policy for container shipments has witnessed a change in operations that resulted in less reliance on direct freight flows and higher transshipment operations. Motivated to investigate a soft intelligent decision-making approach using game theory in the context of servicing vessels during unloading operations in transshipment, we propose an epsilon bargaining approach between the carrier and the container terminal operator (CTO). The objective of the game is to maximize the carrier service level while minimizing operation costs for the CTO. The players' utilities, which depend on the service level and the fees for the carrier, as well as the revenues generated and the cost incurred for the CTO, are uniquely formulated and evaluated in a bargaining scenario using an ordinal ranking approach. The negotiation process is further improved between the two players based on our proposed Epsilon Bargaining Equilibrium, which to the best of our knowledge has not been used in maritime transportation problems. Results from a risk aversion case illustrate the value of the soft computing mathematical model that we formulated and motivate follow-up research.     

集装箱起重机液压油缸式减摇系统的动力学分析

集装箱起重机采用液压油缸式减摇系统,衰减集装箱的摇摆,将集装箱准确快速地码放。液压油缸式减摇系统由减摇卷筒、减摇钢丝绳、液压油缸、液压泵站和滑轮组等组成,通过2个不同压力的液压回路进行控制,从而吸收吊重摆动的能量。对液压油缸式减摇系统在工程实用范围内进行简化,选取小车的水平位移和集装箱在竖直平面内的摆角为广义坐标,利用拉格朗日方程建立减摇系统动力学方程。在集装箱吊重摆角较小时对该方程进行线性化处理;在起重机小车制动时得出吊重的摆角方程,分析吊重的减摇效果。研究表明:影响吊重减摇效果的因素有减摇绳的斜拉角度大小、起升绳的有效长度、吊重的有效质量和液压减摇系统结构参数等。仿真结果表明:液压减摇系统结构参数对摆幅衰减所需的时间影响较大,是影响减摇效果的主要因素和关键参数。     

铁路集装箱运输新技术应用及其标准化研究

就集装箱运输发展是铁路运输业发展新动力的可能性和重要性作了探讨,并介绍了铁路集装箱运输中采用GSM-R、GIS、智能化配送等新技术的功能和作用,特别是对铁路集装箱运输标准化工作进行了具体的分析和论述,供有关部门参考。     

集装箱船载化学品事故应急现状及对策—“达飞费德里奥”轮事故应急行动引发的思考

集装箱船舶运输迅猛发展的同时，涉及集装箱危险货物运输的事故也逐年增多，危险化学品本身性质复杂，且变化迅速，险情分析比较复杂，险情等级较难确定，给船员人命安全和海洋环境造成重大威胁。文中结合一船载集装箱危险品事故的应急处理，剖析当前化学品事故应急过程中存在的问题，并提出了相应的建议。     

A queuing model analysis of the performance of the Hong Kong container terminals

The growth of container‐handling industry and its impact on Hong Kong's economy have aroused considerable attention in recent decades. Within the recent twenty years, the rapid growth of container‐handling industry has led Hong Kong to become one of the world's busiest container port with over 11 million T.E.U. s (Twenty Feet Equivalent Units) container throughput in one year period. Also the container throughput is expected to reach 15.5 million T.E.U. s by year 2004.

As the success of container‐handling industry is significant, many studies have been conducted relating to this subject. In this paper, an application of a queuing theory model to Kwai Chung Container Terminals is developed and described. Specifically, we consider seasonal changes at the Terminals and focus on their effects on inter‐arrival time and service time of container vessel.

A crucial component of the study relates to the empirical data collected. Besides verifying the validity of the model, those data provide guidelines for developing schemes to manage the seasonal fluctuation of container throughput of the Terminals.     

Crucial factors influencing international logistics operations for African landlocked countries – A case study of Burkina Faso

ABSTRACT

This study aims to evaluate the crucial factors influencing international logistics operations for African landlocked countries. To this end, a case study and a questionnaire survey were conducted. A total of 147 usable responses from container shipping firms were obtained as a result of the questionnaire survey. The results of factor analysis revealed that transportation capability, external risks, information integration, logistics infrastructure, local agents’ logistics capability, and national law and policy were crucial factors influencing the logistics operations of African landlocked countries. Specifically, local agents’ logistics capability was perceived by respondents to be the most important factor. Moreover, the results of the study also indicated that the highest factor mean values of small shipping companies were related to transportation capability, external risks and the local agents’ logistics capability, whereas container shipping companies that arranged trucks for inland transportation paid more attention to the external risks, logistics infrastructure, the local agents’ logistics capability, and national law and policy.     

交通系统仿真技术及在道路工程中的应用

交通系统仿真正逐步在城市道路及公路的规划和设计中得到应用。该文首先对交通系统仿真的主要研究内容、应用、分类、功能及相关的交通系统仿真软件进行了总体介绍;在此基础上,利用宏观仿真软件VISSUM对上海市临港新城芦潮港社区D3路的交通量进行了预测,其预测成果已被应用于D3路的设计。     

山海关港泥沙淤积问题的分析研究

本文通过现场测验资料,分析了山海关港的自然条件、泥沙来源、动力因素及泥沙运动趋势,计算了沿岸输沙量、港池及航道的回淤情况,对大风浪天航道的淤积情况也做了分析计算,结果表明该港回淤问题轻微,对建港十分有利.     

集装箱码头连续泊位动态分配优化模型及算法

以泊位配置问题为研究对象,以到港船舶总在港时间最短为目标,建立优化模型。设计了基于Q学习方法的优化算法,并以某集装箱码头的实际船舶作业数据为例,对模型及算法的有效性进行了验证。