从PSC检查谈船员实操能力提高

文中从PSC检查角度入手,分析了船员操作能力下降的原因,并提出了提高船员实操能力的建议,以减少船舶被滞留和发生事故的风险。     

舰船装备维修费预测方法评价准则体系研究

针对舰船装备维修费预测效果评价仅采用单一的精度准则可能导致较大预测风险的缺陷,在分析现有预测评价准则研究现状的基础上,总结了现有的预测方法评价准则,并通过进一步结合对舰船装备维修费预测特点的分析,建立了适合于舰船装备维修费预测方法评价的准则体系。建立的准则体系有利于提高舰船装备维修费预测的可靠性,降低预测风险,为舰船装备全寿命费用预测和舰船装备维修工作提供可靠的基础。     

中国公路桥梁抗震设防标准的发展和评价

基于评价汶川地震重灾区、极重灾区公路桥梁抗震设防标准的需要,对震区桥梁建设所依据的3个版本抗震设计规范设防标准发展情况进行介绍和评价,并对国内外现行公路桥梁抗震设计规范的设防标准和设防目标进行比较研究,在此基础上评价我国公路工程抗震设计规范设防标准的发展和现状.     

服务水平-运行效率-资源消耗传导下的 通道交通方式选择模型

分析研究运输服务水平、运行效率及资源消耗三者的互动影响机理,并构建相 关模型表征三者互动传导机制.用户对交通方式服务水平的感知程度影响其选择决策,用 户的出行需求直接影响交通方式的运行效率,运行效率的高低表征了资源被有效利用的 程度.在该互动传导机制下,构建基于出行链的通道交通方式选择MNL模型.以北京-西 安运输通道为案例,对模型进行验证.结果表明,普通铁路依旧承担着该通道内的主要运 输需求.     

基于云理论和DEA方法的炮兵轮式指挥车作战效能评估

提出运用云理论和数据包络分析（DEA）方法,对炮兵指挥信息系统作战效能评估进行研究。构建指标体系,通过统计建立状态数据样本集,建立云模型,对系统作战效能进行评估,得到一组指标的云向量,再对指标体系建立CCR评估模型,得到另一组指标评估值;最后将这两组评估值综合,得到最终的评估结果。     

绿色船舶的营运选择(英文)

Environmental issues and rising fuel prices necessitate better energy-efficiency in all sectors.The shipping industry is one of the major stakeholders,responsible for 3% of global CO2 emissions,14%-15% of global NOX emissions,and 16% of global SOX emissions.In addition,continuously rising fuel prices are also an incentive to focus on new ways for better energy-effectiveness.The green ship concept requires exploring and implementing technology on ships to increase energy-efficiency and reduce emissions.Ship operation is an important topic with large potential to increase cost-and-energy-effectiveness.This paper provided a comprehensive review of basic concepts,principles,and potential of operational options for green ships.The key challenges pertaining to ship crew i.e.academic qualifications prior to induction,in-service training and motivation were discussed.The author also deliberated on remedies to these challenges.     

基于云理论的两栖编队作战能力评估

舰艇编队作战能力是一个涉及多指标的复杂系统,受战场环境、装备性能、人为等因素的影响,包含许多随机和模糊因素,对其进行定量评估尚存在一定的困难。针对世界各国两栖装备发展的现状,提出两栖编队的作战概念,构建了两栖编队作战能力指标体系;基于云理论的思想,运用云重心评价方法给出作战能力评估模型,并进行实例计算。     

基于GAHP的舰载反潜武器系统效能评估

针对影响舰载反潜武器系统效能评估的各因素,建立了系统效能评估的层次指标体系。以灰色系统理论为基础,结合层次分析法,提出了基于AHP和灰色评估法的系统效能评估模型,并用实例说明了该模型应用的基本步骤。该文为舰载反潜武器系统效能评估提供了一种新的评估方法。     

厦门市快速公交首期线路运营效果分析

本文在介绍厦门市快速公交概况的基础上,对厦门市BRT系统特征及优势进行了阐述,并且从客流量分析、BRT服务水平和乘客满意度三方面具体分析了BRT的运营效果。最后,针对规划和运营中存在的问题提出了相应的改进建议,如加大BRT专用道管理力度、尽快投入18米车型、加快高峰车辆周转、研究BRT升级轻轨策略、调整常规公交线路等。     

The methodology of multiple criteria decision making/aiding in public transportation

The paper presents methodological overview of the application of Multiple Criteria Decision Making/Aiding (MCDM/A) in public transportation. It explains why MCDM/A methodology is so important while dealing with different categories of decision problems that arise in mass transit systems. Major features and basic notions of MCDM/A methodology are presented. Different categories of MCDM/A methods are characterized and classified. Two case studies demonstrate possible applications of MCDM/A methodology in public transportation. In the first case study multiple objective evaluation of the mass transit system developments' scenarios is carried out. Four variants of the mass transit system are evaluated by a consistent family of criteria with an application of ELECTRE III method. The second case study refers to optimization of the crew size in the mass transit system operated by a public transportation company (PTC). Multiple objective mathematical programing problem is formulated and solved by a combination of an original, customized heuristic procedure implemented in a computer software PEOPLE and the Light Beam Search (LBS) method. Copyright © 2010 John Wiley & Sons, Ltd.