船体结构钢的现状及其发展趋势

本文概述了８０年以来微合金化ＴＭＣＰ型、钢沉淀硬化ＨＳＬＡ型，ＴＭＣＰＡＣ／ＤＱＨＳＬＡ型、ＵＬＣＢ型、硼处理ＨＳＬＡ型、微合金化Ｎｉ－Ｃｒ－Ｍｏ型高强度船体结构钢的发展现状，并对其未来的发展趋势作了展望。     

自主式水下运载器导航用速度传感器技术方案研究

自主式水下动载器（ＡＵＶ）在军事上和国民经济中都有很大应用价值，因而近十年来，引起各国高度重视。由地ＡＵＶ本身尺寸小，因此，把尺寸、重量、功耗作了ＡＵＶ导航设备设计的三大基本要素，本文从多普勒速度计程仪（ＤＶＬ０和相关速度计程仪（ＣＶＬ）两种速度传感器的工作机理出发，找出了ＣＶＬ系统的独特优点，以此为ＡＵＶ导航有速度传感器采用ＣＶＬ方案的依据。由误差分析，提出了ＣＶＬ方案系统参数选择的方法，最后拟     

高压氧对MPTP引起的小鼠帕金森综合征行为,超微结构和生化…

目的：探讨高压氧（ＨＢＯ）对帕金森病可能的治疗作用。方法：对用１－甲基－４－苯基－１，２，３，６－四氢吡啶（ＭＰＴＰ）制备的Ｃ５７ＢＬ小鼠帕金森综合征模型分别在注射ＭＰＴＰ后７天、１天和１小时内开始用ＨＢＯ处理，每日１次，共７次。按不同的ＨＢＯ处理方式分组，从行为、病理改变和黑质纹状体区多巴胺（ＤＡ），３，４－二羟苯乙酸（ＤＯＰＡＣ）和高香草酸（ＨＶＡ）的含量测定等几方面与对照组进行比较。结果：Ｈ     

一种新型的船用计程仪

本文介绍了ЛДＢ－１型多普计程仪，其特点是精度高，使用方便，工作可靠，有航速和航程输出接口，信号可直接送ＡＲＰＡ雷达和卫星导仪以及综合导航系统。     

海军舰艇发动机排气排放物特性

发表了几种舰型的军用柴油机排气排放物测试结果的统计资料。通过结合船体线性特性、推进装置参数、舰船航态分布论述了编制军用柴油机负载循环的简单程序。负载循环模拟了发动机转速与功率经过时间。发表了美国海军ＬＳＤ４１级舰和ＭＣＭ１级舰的结果。通过ＬＳＤ４１级舰负载循环和民用标准的比较，表明商船负载循环不适用于舰艇。     

微型可编程控制器JDMPLC—1的设计

ＪＤＭＰＬＣ－１是一种面向现代化控制系统的微型可编程控制器。它以高性能８位单片机８０Ｃ５５２为核心，集多功能于一体，具有开放性和柔性特征，有较强的链接功能。本文着重介绍了它的总体设计，尤其是工程化方面的链接功能方面的设计，具体还介绍了ＪＤＭＰＬＣ－１的软、硬件组成和系统的设计与实现。     

EML201型电磁式计程仪调试

详细介绍了ＥＭＬ２０１型电磁式计程仪系统的组成,并着重介绍了调试该系统的具体方法和措施。     

OCD—1型油分浓度检测报警装置原理分析及管理维修要点

论述了ＯＣＤ－１型油分浓度检测报警装置的理论依据，并对其检测，显示和报警原理进行了电路分析，最后根据实践提出了几点管理和维修要点。     

CACM—1A型电缆自动切割机

本文介绍了ＣＡＣＭ－１Ａ型电缆自动切割机的结构、功能及工作原理。该朵的应用提高 船用电缆开线的丈量精度和生产效率，减轻了开线的劳动强度。     

一种求解线性方程组的预处理方法

研究了一种基于不完全Ｃｒｏｕｔ分解的预处理方法，通过对Ｖａｎｄｅｒ Ｖｏｒｓｔ构造的不完全分解ＬＥＱＤＥＱ＾１ＵＥＱ加以改进，从而得到新的矩阵分解，可以证明，当系数矩阵Ａ是非奇异Ｍ－矩阵和Ｌ－矩阵时，这种分解是对矩阵Ａ进行的正则分裂。据此建立的求解方程组的迭代公式收敛。数值试验结果表明，这种预处理方法能够有效地提高迭代法的收敛速度。     

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。