Stackelberg 博弈下海盗活动地区海军护航选择优化

为了优化海军在海盗活动区域的护航选择决策,更好地保护过往船舶,维护海上运输安全,在对实际护航行动涉及的海军与海盗两方主体博弈关系分析的基础上,建立了一个包括海军和海盗双方在内的非合作非零和Stackelberg 博弈对双方行为进行描述,并选取双层规划模型将博弈关系进行数学转换.针对该双层规划模型的特点,采用基于灵敏度分析的启发式算法（SAB）对反应函数具体形式进行计算,并进行模型求解算法设计.最后,以索马里海盗活动区域为例进行实例分析,得出海军继续选择亚丁湾进行护航,海盗活动区域将向红海转移的结果,结果也说明了模型与算法的合理性.     

海外撤侨应急运输特点分析

以利比亚撤侨为切入点,探析了海外撤侨应急运输的特点规律,提出把撤侨应急运输纳入军交运输职能范畴具有代表政府行为、反应迅速、执行任务可靠性高等比较优势。我军今后应紧密配合国家的外交政策,积极参与到国家海外撤侨应急机制建设中来。     

交通运输行业引进民间资的主要方式探讨

文章在调查分析现有投资政策、交通投融资现状及问题基础上,从交通基础设施建设、交通运输服务业、新兴交通产业发展3个领域,提出了传统融资方式、交通产业基金、争取地方发债、创建交通产业园区、运用委托贷款、依托综合枢纽建设、交通公益基金会、交通资产证券化等8种方式引进民间资本。     

厦门轨道交通2号线跨海段盾构滚刀磨损与更换预测

对盾构法施工跨海隧道,有效降低由于滚刀磨损所带来的作业风险并有计划地进行滚刀更换十分重要,针对厦门轨道交通2号线跨海段地质条件,基于理论预测模型和实验预测模型对几类岩石条件下滚刀的换刀距离进行了预测。通过分析刀具更换工法的适应性,提出对厦门轨道交通2号线跨海段换刀位置与换刀工法的建议： 1）淤泥段采用切削类刀具,换刀方式采用常压开舱换刀,换刀位置在1#联络通道附近; 2）全强风化低压段采用盘形滚刀,换刀方式以带压进舱换刀为主,在该掘进段需要换刀4次,其中第3次在大兔屿1#中间风井处更换,其余3次均在海底更换; 3）全强风化高压段采用盘形滚刀,在该掘进段需要换刀4次,换刀方式以饱和气体带压进舱换刀为主; 4）中微风化硬岩段采用盘形滚刀,在该掘进段需要换刀3次,换刀方式以减压限排换刀为主。     

隧道改路基工程方案分析及管理对策

以托苗坳隧道改路基工程为例,根据其地质条件提出了隧道改路基施工方案,简要分析该施工方案并提出工程施工中的管理对策.     

论发展我国的海上起重抢险打捞作业

〔〕本文论述了我国海上起重抢险打捞作业的重要意义。使用大型海洋起重船进行起重打捞是一种新型的打捞方法,具有快速、强力、作业安全可靠的特点。起重打捞作业方法的实现,使海上抢险打捞的业绩达到了新的高度。     

The Origins and Early Implementation of the Magnuson-Stevens Fishery Conservation and Management Act of 1976

The Magnuson-Stevens Fishery Management and Conservation Act, enacted in 1974, is the primary federal fishery management legislation in the United States. The political impetus that led to enactment was the extensive foreign fish off U.S. shores that expanded following World War II and the failure of international negotiations to prevent the decline in many fisheries relied upon by domestic fishers. In Congress, there was uncertainty as to whether a comprehensive management program would be created along with a unilateral extension of fishery management jurisdiction out to 200 nautical miles. The delay in agreement over a new United Nations Law of the Sea Treaty and resolution of the extent of coastal nation jurisdiction over fisheries culminated in enactment of the legislation sponsored by Senator Warren Magnuson, a Democrat from Washington State, and Senator Ted Stevens, a Republican from the State of Alaska.     

Part 2. Beyond single-outcome models: Decompositions of aggregate and disaggregate road safety risk

The second part of the state-of-the-art focuses on the development of the founders' double streams explaining single-outcome indicators (probability of accidents and fatalities, respectively) by fixed form regression, as outlined in the Part 1. Following Page (1997, pp. 67–122, 2001) and others, we use as turning point of the evolution of both aggregate and discrete approaches the DRAG-1 model of 1984, itself based on aggregate data, which introduced four key innovations in principle applicable to both streams.     

Next generation mega container ports: implications of traffic composition on sea space demand

ABSTRACT

Demand for sea space brought about by increasing container-shipping traffic has important implications on how this space is managed and used. This is particularly important given the long-term nature, high-asset specificity, high- opportunity cost of investment, and significant economic impact of container port activity on a locality. The challenge is especially pressing for ports, which are facing constraints in seaside capacity where container traffic also has to co-exist with the needs of other types of ship traffic. This challenge is likely be multiplied for next generation container ports, which are expected to handle even larger traffic volumes. These ports are also likely to face competing sea space demands from other economic and social activities especially when they are concurrently major confluences of trade, logistics, and urban populations. This is the first research to investigate in detail the impact and importance of investigating sea space requirements from the perspective of cargo traffic composition and ship capacity. Results show that transshipment containers can generate much higher demand for sea space due to the higher volume of shipping capacity that accompanies such traffic. Sustainability issues and managerial and policy implications pertaining to the development of next generation container ports are provided.     

船用系泊绞车在某外海开敞式大型减载平台中的应用

某外海开敞式大型散货减载平台靠泊船型较大,船舶靠泊作业时受风、浪、水流影响较大。而大型船舶的船用系泊设施数量相对固定,在较为恶劣的作业条件下,设施较难满足船舶的系泊要求,需要通过拖轮顶推协助才能满足船体约束。在平台上设置船用系泊绞车可增加船舶带缆的缆绳数量,重新分配各缆绳的受力状态,有效提高船舶靠泊作业的安全性,对类似工程具有借鉴意义。