基于蚁群算法的舰船避险航路规划

采用蚁群算法研究舰船避险航路规划问题,利用栅格法将航行海区进行细分,建立舰船避险航路模型,进而求算优化解。仿真结果表明,蚁群算法求解舰船优化航路具有较强的稳定性和鲁棒性。     

基于共振弦检测技术的舰船内燃机状态监测研究

内燃机是内燃动力舰船的心脏,它的运行是否正常直接关系到舰船战技术性能的发挥.文章介绍了共振弦检测技术的基本原理及其在舰船内燃机燃烧状态监测中的应用.应用共振弦检测技术对准确监测内燃机相关系统的运行状态,提高内燃机状态监测能力,保证舰船动力系统处于最佳及安全的运行状态,提高舰船在航率具有重要意义.     

中高速舰船超大型球鼻设计

随着海军装备现代化，现代舰船都要求安装声纳，因而出现了超大型球鼻艏。本文通过模型试验，寻找Ｆｒ＝０．２５－０．３５的舰船，安装超大型球鼻最佳临界状态，最佳位置与断面型状。给出解决此类问题的方法，对设计这类中，高速舰船的球鼻有一定参考价值。文中提供大量试验资料。     

新材料在海军舰船上的应用

本文通过分析海军舰船对新材料的应用需求及国内外海军舰船材料的研究与应用现状，对新材料在海军舰船上的应用可能性及应用前景进行了探讨。     

遗传算法在自航水雷航路规划中的应用研究

简要介绍了遗传算法在自航水雷航路规划中的应用，分析了可能产生的问题及原因。借鉴模拟退火的思想，研究并提出了改进的遗传模拟退火算法并用以解决自航水雷航路规划问题。仿真结果表明这种算法能够有效地提高航路规划的计算速度和保证航路规划的质量。     

物联网感知层查询树算法在舰船避碰系统中的应用

为解决传统船舶航行避碰效果不佳的问题,对物联网感知层查询树算法在舰船避碰系统中的应用情况进行分析。通过对舰船避碰系统结构框架进行分析,采集船舶航行参数及船舶最佳航行路线。基于参数采集结果,进一步对舰船避碰系统中的物联网感知层查询树算法性能进行优化,实现对舰船避碰系统的有效控制,保证船舶航行安全。最后通过实验证实,物联网感知层查询树算法在舰船避碰系统中的应用,对船舶航行具有更加精确有效的控制效果,充分满足研究要求。     

制订舰船三维设计文档管理标准的必要性研究

对七○一研究所目前舰船三维设计应用情况进行了概述，对舰船三维设计的文档管理进行了研究，给出了舰船三维设计文档管理标准体系的编制原则，为舰船三维设计标准体系的长期规划、制订提供依据。     

舰船电场研究概况及其军事应用

舰船电场是舰船的一个重要的军用目标特性，美、英、俄、澳大利亚和加拿大等发达国家对舰船电场的研究都极为重视，并已形成了装备。介绍了舰船电场的种类及其产生机理，阐述了舰船电场在军事上的应用和国外的研究情况。     

确定舰船防火主竖区舱壁分隔等级的经验公式

应用舰船结构防火的基本原理和系统综合评定方法，对舰船舱室火灾危险性和舰船舱室重要性进行定性与定量分析，建立了舰船防火区两侧舱室火灾危险性和舱室重要性的层次模型和综合评价值，并提出其综合判断值。     

基于谱分解的F-S最佳鉴别平面及舰船识别研究

Fisher最佳鉴别分析方法已在许多模式识别问题中取得成功应用。Fisher最佳鉴别分析建立在对Fisher最佳鉴别准则的最优化基础上。本文利用对类内矩阵S10进行谱分解，提出一种在类内矩阵S10的零空间中求解F—S最佳鉴别平面的新方法。我们将此方法应用于红外舰船图象的特征抽取和识别的研究。实验结果表明了该方法的有效性。     

Errata

正In the paper"Influence of Fouling Assemblage on the Corrosion Behaviour of Mild Steel in the Coastal Waters of The Gulf of Mannar,India"in Vol.12,No.4,Page:509,References were lost,and the two authors’biographies were identical.The correct text is shown below.We apologize to the authors and our readers for any inconvenience caused by the errors.     

Journal of Marine Science and Application 2014 Sum. Contents

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第34届海洋、离岸及极地工程国际会议(英文)

正St.John's,Newfoundland,Canada,May 31-June 5,2015 OMAE2015 is the ideal forum for researchers,engineers,managers,technicians and students from the scientific and industrial communities from around the world to: meet and present advances in technology and its scientific support;     

联合作战计划和执行系统

全球指挥控制系统(GCCS)实施当前美国海军网络中心战信息基础设施的联合计划网络。联合作战计划和执行系统(JOPES)支持GCCS实现联合计划。JOPES有两类计划：时间不限的精密预案计划生成作战计划、方案计划或职能计划；时间敏感的危机行动计划生成作战命令或战役方案。前者在和平时期创建的作战计划是后者的计划基础，加速应付危机的能力。     

Eastbound or westbound ?

In terms of equal sailing distances, where is the inflexion when ships depart from ports in the Asian Continent to New York via Suez and/or Panama？
The answer is China South Port Group （Hong Kong, Shenzhen and Guangzhou）.     

Recent progress on wave induced loading measurements in warships

Recent measurements of wave induced hull strain and flexure in RN warships are presented together with the derivation of the current design criteria for extreme hull girder bending loads. The history of the development of the shipboard instrumentation used is given and recent developments to improve the quality and ease of analysis of the data are described. An unexpectedly high transverse asymmetry in the longitudinal strains measured in destroyers is shown to be the result of a combination of vertical and lateral bending in oblique seas. Finally recent theoretical comparisons between the loading of Deep-Vee hulls and conventional UK rounded bilge hulls are presented which demonstrate the higher loading experienced by this type of hull form.     

桥梁防撞设施物理模型试验

物理模型试验是预报防撞设施所受撞击力及优化设计方案的主要方法之一。结合杭州湾大桥柔性防撞设施及东海大桥独立式防撞体设计方案,阐述了船—防撞体撞击试验的基本原理、方法、试验方案及相关试验结果。提出了柔性防撞系统的优化方案。试验结果表明,该方案经济有效,可供预报类似桥梁防撞设施撞击力时参考。     

印尼某电厂码头水工建筑物设计

印尼某电厂项目码头水工建筑物包括码头、防波堤和护岸等主要组成部分。在该项目水工建筑物的设计过程中,综合考虑当地的自然条件、施工能力和材料来源等因素,不断优化结构选型和结构断面。根据不同使用要求,护岸分别采用直立式和斜坡式2种结构型式,推荐的设计方案节省投资、施工方便,可供同类工程设计参考。     

Impact of regulation on the performances of long-distance transport services: A comparison of the different approaches in Sweden and Norway

Despite the many socio-economic similarities between Sweden and Norway, differences in jurisdiction, organisation, cooperation, and financing of long-distance passenger train and coach services have led to the development of four distinctively different ways of serving the markets. This paper describes how the train and coach markets have developed in the two countries, with emphasis on regulatory and industrial structure and a couple of performance variables.Looking at passenger rail, both countries separated infrastructure from operation over a decade ago. However, while Norwegian rail is characterised by an almost monopoly supplier, rail services in Sweden are partly decentralised to the responsibility of county authorities and are widely subjected to competitive tendering. The rest of the network is about to be opened up for on-the-track competition. Swedish Rail (SJ) has spent the last decades consolidating its core business (passenger rail) and sold out its other businesses. In contrast, the Norwegian state rail (NSB) has expanded its business to become a major bus operator and property owner, with extensions also into the Swedish market.The coach industry was more recently deregulated in both countries. The Swedish coach market is dominated by privately owned companies operating services to and from Stockholm. In Norway, state-owned NSB is a major coach operator on medium distance routes, and is also the largest partner of Nor-Way Bussekspress which totally dominates long-distance coach services. Further, the Norwegian coach market is characterised by cross-ownership and cooperation which has enabled an extensive route network which covers most of Norway.We find distinct differences in achievements in the two modes and in the two countries. Swedish rail services have succeeded in winning market shares and in renewing and developing both infrastructure and service levels to a greater extent than the Norwegian model. On the other hand, the Norwegian coach market seems to be more developed and efficient compared to its Swedish counterpart.The paper concludes with a discussion on the possible links between the different approaches and the performance observed, with the aim to stimulate further and more detailed research on some important issues.     

开放式数据挖掘系统模型

目前国内已经出现了少量的数据挖掘相关产品。国内数据挖掘软件无论从数量还是质量上比较，都与国外软件存在着较大的差距。随着数据仓库技术的普及，数据挖掘应用的需求越来越强烈，如何缩短这种差距，研发数据挖掘软件产品成为国内业界的一个重要问题。通过引用目前国际通用数据挖掘标准技术来构建开放式的数据挖掘系统模型，该系统模型从可扩展性、可重用性、易用性等方面得到了加强。