Testing port choice models using physical and monetary data: a comparative case study for the Spanish container trades

ABSTRACT

Transport costs are useful explanatory variables in port choice research. Nevertheless, the availability of such information usually poses a problem. Thus, the formulation of an alternative approach, to be used as a proxy of these variables, would be desirable. The objective of this study is to improve the analysis of container port choice using logit models by adopting physical non-monetary indicators based on maritime distance and ship size. The statistical tests of logit models on port choice using these new variables are compared with the result of using cost variables for the same data set of choice positions. The statistical outcome is good and allows us to present this new approach as a contribution to the literature on port choice modeling.     

BM皮带机减速节能改造

为进一步节能减排,通过PLC程序修改,实现BM皮带机减速,并通过理论计算验证节能效果。分析港口BM皮带机在生产实际中存在的问题。从电气方面入手,介绍改造方案。改造完成运行良好,节能效果显著,为生产带来了一定的帮助。     

津川客滚船的电气设计方案

文章主要介绍在1345客位/2100m津川客滚船如何在满足安全返港规范要求的基础上进行设计。着重介绍配电系统、船内广播及通用报警系统、火灾报警系统、照明系统、导航系统的设计方案。     

Smaller ports’ evolution towards catalysing sustainable hinterland development

ABSTRACT

From simple organizations as gateways for goods and passengers, ports have evolved and transformed into complex organizational systems with multiple functions. Besides providing cargo, logistics, and other kinds of services to its customers, modern ports engage in the development of their hinterlands. Sustainability, evolving from environmental actions over the years, has become the core of many modern ports’ approach towards hinterland development and port competitiveness. While the literature is concerned with and presents examples of large ports implementing sustainability initiatives, the literature is scarce on smaller ports. This article addresses this gap by exploring qualitatively the case of the Port of Aalborg, a medium-sized port in Denmark, and its evolution towards using sustainability for port and hinterland development. The research focuses on the actions behind environmental development at the port. Its evolution is mapped and explored using the analytical framework developed based on the (larger) ports’ development and their roles. The findings from the Port of Aalborg case exemplify how smaller ports can evolve to drive the sustainable development of their hinterlands and contribute to a better understanding of this kind of port.     

莫桑比克贝拉渔码头重建工程工艺设计研究

以莫桑比克贝拉渔码头重建工程为例,探讨渔船装卸、水产品加工处理及冷藏、制冰及输冰等工艺设计内容,为类似渔码头设计提供借鉴。     

基于MVC模式的大型港口油料消防演练虚拟仿真系统

采用UE4引擎构建的大型港口油料消防演练虚拟仿真系统涉及内容多、软件规模庞大。为使程序具有逻辑性，采用模型-视图-控制器（Model-View-Controller，MVC）模式对系统程序进行结构化分层设计，根据软件功能要求对程序结构进行划分。结果表明，基于MVC模式的系统程序具有结构清晰、可移植性强等优点，使庞大而复杂的系统可更好地满足严格的油料消防演练需求。     

港口岸线集约利用评价指标研究

港口岸线作为一种不可再生资源,是区域经济发展的重要支撑,开展岸线集约利用研究具有重大战略意义。通过对顺岸式、挖入式、突堤式岸线布置形式进行分析,建立岸线利用强度指标模型,讨论岸线集约利用措施。研究结果表明:理论状态下挖入式与突堤式布置岸线利用强度大致相当且均高于1,顺岸式布置岸线利用强度最低,近似为1;不同类型岸线布置形式对不同水文、泥沙、地形、陆域及装卸作业的适用性不同,港口岸线集约利用需要综合考虑岸线利用强度和制约因素,重点考虑使得岸线强度正向增量价值和制约因素负向价值代数和最大的布置形式;选择挖入式和突堤式布置时,建议岸线利用强度在2～6相对较为合适。     

船舶电子设备串口数据的软件共享方法

针对船舶串口接口的电子设备数据共享问题,提出了1种技术方案。利用配对的虚拟串口和自行开发的串口转发软件,将1个物理串口的数据转发到多个虚拟串口上去,应用软件可以继续利用串口模式,实现数据的读取,方便了新软件系统的开发,也避免了更改已有的软件系统,便于船舶计算机多软件系统的集成和协同,更好地发挥各自的优势,提升船舶的运营水平。      

基于 GIS 的港口突发事件辅助决策与应急指挥系统研究

突发事件应急防范工作是我国港口安全生产工作的重中之重。将 GIS 与港口管理相融合,设计了港口突发事件辅助决策与应急指挥系统。系统由危险源日常管理、救援保障资源管理、应急指挥综合管理、应急辅助决策分析和虚拟仿真应急演练等应用模块组成。系统在南京港的应用表明,该系统能有效整合应急救援资源,提高突发事件的处理能力。      

铁山湾海域风浪数值模拟研究

随着北部湾的快速发展,铁山湾海域将规划建设数百个泊位．基于SWAN建立了该海域风浪数学模型,选取铁山湾海域影响较大的5个风向,研究不同风要素组合作用下的波浪特征,计算得到了建港方案实施前、后的波浪场分布．研究结果表明：S-SSW风向对该海域的风浪影响最大,SE-SSE和SW-WSW风向次之,E-ESE和W-WNW风向的影响相对较小．建港方案实施后,工程区的波浪强度整体小于工程前的;人工岛起到了很好的掩护作用．