基于TTCN-3的BACnet协议一致性测试研究

通信协议的一致性测试是保证设备实现互联互通的一种重要技术手段。在简要介绍TTCN-3和BACnet协议的基础上，分析了如何使用TTCN-3对BACnet产品进行一致性测试，并设计实现了一个测试工具的原型系统。     

多路逻辑信号发生器的PC机控制

为解决数字电路插板的测试问题，设计了80路逻辑信号发生器。采用PC机进行控制，设计了比较完善的通信协议，利用微软Office软件的功能可以方便地完成逻辑测试向量的编辑及其文件的导入、导出等数据处理工作。     

舰船自动化智能模块测试系统设计与实现

舰船自动化智能模块遵循统一的顶层设计、接口定义及通信协议,由多家配套生产,满足同类模块兼容互换。文章介绍了模块应用背景、测试要求及测试系统软硬件设计等内容,实现了一个能够覆盖所有被测模块接口、功能、指标,满足不同测试要求的自动化测试系统。实际工程应用表明,该系统工作稳定、性能良好,具有较高的自动化程度。     

长江航道数据交换模式与通信协议设计及测试*

随着长江数字航道建设的不断深入,覆盖长江干线航道的电子航道图已正式对外推广应用,对长江航道数据交换标准及通信协议提出了新的要求。制订了长江航道数据资源的规划策略,分析了长江航道信息网络的实际需求,设计了相应的长江航道数据交换模式与通信协议。开发了数据交换及通信协议测试平台,实现实时数据监测和终端协议分析等重要功能。     

嵌入式软件测试

软件测试是软件工程的一个重要组成部分。阐述了嵌入式软件测试的目的、分类和工作流程,按照测试步骤详细地分析了单元测试、集成测试、确认测试和系统测试方法。     

舰船装备测试性指标综合加权分配方法研究

详细分析了舰船装备测试性指标分配的要求,运用综合加权分配方法对舰船装备测试性指标分配进行研究。提出了测试性指标分配方法的步骤,给出了确定测试性指标影响系数的方法,分别是定性的评分方法和定量方法。该方法计算量小,满足测试性指标分配要求,适合于工程应用。     

某型导弹带微处理器型分机测试技术研究

文章从结构和功能出发,详细分析了某型导弹带微处理器分机的测试需求和输入输出信号特征,并据此提出了设计其测试硬件和软件的方法,最终设计完成了该型分机的测试。     

路内测试法在船电维修中的应用

本文阐述了路内测试的基本原理,探讨了基于路内测试的电路板故障诊断方法,研究了采用路内测试设备进行舰船电子装备维修测试与故障诊断的有关技术问题.     

C程序的动态测试

针对C语言的特点,提出在Win XP/NT平台上对C源程序进行实时测试的原理、方法。在程序控制流适当的地方插入一探针函数调用,实时收集程序运行时刻信息,研究的结果对程序员的测试有极大的帮助,为程序优化提供了大量有用的信息。     

我国海船通信天线实船测试综述

就我国海船通信天线的实船测试情况作了综述。重点介绍了海船发信天线的选择、安装布局、测试的项目和方法，以及提高天线效益的实船测试研究；强调了实测试的重要意义。实船的方法和科学结论，对于海船天线的设计、研制和安装布局都具有重要的参考价值。     

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。