大型舰船压载水处理装置加装适应性分析

为满足国际海事组织(IMO)最新公约要求,国际航行船舶需加装压载水处理装置防止生物入侵,所加设备要与船舶进行适应性匹配.根据大型舰船使命任务需求及压载水系统特点,结合压载水处理装置的安装要求,从管路系统改造设计和控制逻辑设计等方面对压载水处理装置加装的适应性进行分析,提出并详细论述压载水处理装置加装设计流程和方案.该方...     

船舶污水处理技术探讨

展望生活污水、舱底水处理技术,对压载水处理、舰船中水回用、舰船污水综合处理技术进行探讨.介绍国际规范对设备的具体要求及专业厂家在实验和研发过程中的实践经验、主要技术的发展方向.     

大型半潜船压载水处理系统解决方案

随着压载水管理公约的生效,大型半潜船压载水处理的需求日渐紧迫。文章介绍了大型半潜船压载水系统的特点以及大型半潜船压载水处理面临的困难与解决方法,通过对大型半潜船压载水处理系统的典型案例比较,分析并得出循环法和重力法是解决大型半潜船压载水处理问题合理可行方案的结论,为大型半潜船压载水处理系统解决方案提供借鉴。     

国外舰船污染物处理技术及启示

介绍国外舰船污染物处理技术和各国海军对黑水、灰水、油污水、固体废弃物以及压载水的相关处理技术及其发展趋势,分析目前国外正在研究的几种先进的污染物处理技术,结合我国工业水平和海军装备的发展方向,提出我国海军舰船污染物处理技术和设备的发展思路。     

船舶压载水处理系统评价体系研究

文中通过对实船使用压载水处理系统的特点进行分析,结合模糊综合评判方法,提出了压载水处理系统评价体系指标,并采用层次分析和模糊综合评判构建了压载水处理系统评估模型,从而为业内选择压载水处理系统提供一定的参考依据。     

国际动态

正Ecochlor压载水处理系统通过美国船级社认证Ecochlor有限公司近日宣布,该公司的船舶压载水处理系统(BWTS)已获得美国船级社(ABS)产品设计评估(PDA)认证。该船舶压载水处理系统具备处理压载水流量高达16000m3/h的能力。为期两年的船上试用表明,经该船舶压载水处理系统处理过的压载水没有残存的生物体。据悉,Ecochlor有限公司的船舶压载水处理系统在获得美国船级社     

船舶压载水中有害水生物的处理技术研究

船舶压载水的给排是造成海洋生物入侵的主要途径,安装安全、环保、有效的压载水处理系统是解决远洋运输和海洋生态环境的重要措施。文章对近年来国外、国内生产的船舶压载水处理系统处理方法及性能进行了介绍和分析,并对目前压载水的处理技术：机械法、物理消毒法、化学处理法和联合处理技术的作用机理和研究进展做了阐述。提出我国应做好压载水管理的立法和压载水处理系统的市场化工作。     

船舶压载水处理系统改装设计

为减少船舶压载水对环境造成的不良影响,促进海洋生态平衡,对主流船舶压载水处理系统的工作原理进行介绍。结合项目实例对船舶压载水处理系统中电气系统的设计思路、设备布要点等进行说明。研究成果可为船舶压载水处理系统的改装设计提供一定参考。     

船舶压载水处理规则在船舶设计中的分析

分析了压载水处理系统的处理方式,重点介绍了压载水处理系统的不同点,并以实船为例,介绍了压载水处理系统的应用。随着环境保护意识的不断提高,船舶压载水引起的危害已经引起人们的广泛关注,国际海事组织（IMD）对其提出了要求。     

压载水管理缺陷滞留案例分析

介绍某新船因压载水管理缺陷被滞留的PSC案例,分析缺陷产生的原因,对未安装压载水处理系统的现有船、已安装压载水处理系统的现有船以及新船如何符合压载水公约提出建议,供相关公司和船舶参考。     

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。