高校国书馆国家重点学科文献信息资源建设与管理

为了加强高校图书馆馆藏国家重点学科文献信息资源的建设与管理,使之对国家重点学科建设真正起到文献信息资源保障作用,结合高校图书馆工作实际,对有关调查研究进行分析与总结,提出加强高校图书馆馆藏国家重点学科文献信息资源建设与管理应遵循的五项原则和应采取的举措.     

船舶压载水管理方法

以IMO"国际船舶压载水和沉积物控制与管理公约"的出台为背景,在参考众多相关文献的基础上,对船舶压载水及其相关问题进行了综述,阐明了压载水处理的重要性,简单扼要地介绍了船舶压载水的电解处理技术,并就该技术杀灭有害水生物和病原体的机理以及应用于处理船舶压载水的可行性进行了重点论述。     

高校图书馆国家重点学科文献信息资源建设与管理

为了加强高校图书馆馆藏国家重点学科文献信息资源的建设与管理，使之对国家重点学科建设真正起到文献信息资源保障作用，结合高校图书馆工作实际，对有关调查研究进行分析与总结，提出加强高校图书馆馆藏国家重点学科文献信息资源建设与管理应遵循的五项原则和应采取的举措。     

情报核心文献的堆加效应初探

作者通过我所情报文献采集和使用的多年实践,应用当代文献学中著名的布赖特福(Bradford)定律,分析了馆藏文献的堆加和逆堆加现象,探索了船舶运输情报核心文献的形成规律。试图用有限的经费采集最有价值的核心文献,提高文献的使用率、查全率和查准率。     

党校图书馆特色数据库建设的对策研究

特色数据库是指依托馆藏特色信息资源,针对某些特定用户的信息需求,对某一学科或某一专题的相关信息进行收集、分析、评价、处理、存储,并按一定技术标准和规范将文献数字化的信息资源库。它具有体现馆藏特色资源,为用户提供个性化服务,按一定标准和规范建成并可供用户共享等特征。     

<船舶工程>文献计量研究

采用文献计量学方法,研究论述了《船舶工程》创刊20年,特别是1995～1999年的发展轨迹和规律,为客观评估《船舶工程》的学术水平和编辑出版质量提供可靠的定量依据,并为有关部门在制订进一步扩大我国船舶科研规模和今后科研方向计划时提供有参考价值的情报信息。     

辽宁省高校图书馆电子文献信息资源共享的探索

从辽宁省高校图书馆与公共图书馆整体和长远建设与发展的角度,紧密结合图书馆事业发展的实际,对辽宁省高校图书馆全面开展馆藏电子文献信息资源共享提出了六项可行措施。     

船旗国法定业务授权十大要素

正依据《国际海上人命安全公约》、《国际防止船舶造成污染公约》、《国际载重线公约》、《国际吨位丈量公约》和《国际控制船舶有害防污底系统公约》相关规定,对船舶的法定检验和发证应由船旗国执行。同时,根据相关公约规定,船旗国可以委托被认可组织(Recognized Organization)来     

上海自贸区下国际船舶登记新政初探

针对中国船舶国籍登记与所有权登记相分离的现行做法,在探求国际船舶登记制度内涵的基础上,从天津试点到如今的上海自贸区,对国际船舶登记制度的发展沿革进行系统梳理。总结上海自贸区下国际船舶登记的五大创新亮点,并在此基础上细致分析国际船舶登记制度施行过程中的的诸多制约因素,提出在施行国际船舶登记制度新政的同时,应当注意相关配套制度的完善和推进。     

国内外船舶防污染规范标准现状分析及我国对策研究

对IMO《国际防止船舶造成污染公约》(MARPOL公约)等公约和规则提出的船舶防污染相关要求进行了分析,介绍了主要造船国家船舶防污染相关的法律法规,以及世界上主要船级社对于船舶防污染的相关规定,并通过对比分析了国际、国外和国内相关标准,提出了我国现有标准存在的主要问题,针对这些主要问题给出了我国有关船舶防污染标准的发展对策。     

On the global ship hull bending energy in ship collisions

During ship collisions part of the kinetic energy of the involved vessels immediately prior to contact is absorbed as energy dissipated by crushing of the hull structures, by friction and by elastic energy. The purpose of this report is to present an estimate of the elastic energy that can be stored in elastic hull vibrations during a ship collision.When a ship side is strengthened in order to improve the crashworthiness it has been argued in the scientific literature that a non-trivial part of the energy released for structural deformation during the collision can be absorbed as elastic energy in global ship hull vibrations, such that with strong ship sides less energy has to be spent in crushing of the striking ship bow and/or the struck ship side.In normal ship–ship collision analyses both the striking and struck ship are usually considered as rigid bodies where structural crushing is confined to the impact location and where local and global bending vibration modes are neglected. That is, the structural deformation problem is considered quasi-static. In this paper a simple uniform free–free beam model is presented for estimating the energy transported into the global bending vibrations of the struck ship hull during ship–ship collisions. The striking ship is still considered as a rigid body. The local interaction between the two ships is modeled by a linear load–deflection relation.The analysis results for a simplified model of a struck coaster and of a large tanker show that the elastic energy absorbed by the struck ship normally is small and varies from 1 to 6% of the energy released for crushing. The energy stored as elastic global hull girder vibrations depends on the ship mass, the local stiffness of the side structure, and of the position of contact. The results also show that in case of highly strengthened ship sides the maximum global bending strains during collisions can lead to hull failure.     

Studies on emergency evacuation management for maritime transportation

Marine transportation is a vital component of the world’s economy and transportation network. The number of people using passenger ships around the globe is increasing worldwide. Similar to other transportation systems, passenger safety is critical in maritime shipment. As emergency evacuation processes for ships are highly different from and more complicated than those for buildings and other vehicles, many researchers have published a vast range of documents related to this peculiar research area. However, there is a tangible lack of sufficient literature review studies that investigate marine emergency evacuation (MEE). That being the case, the potential of marine transportation and the effect of emergency evacuation operation on life safety have inspired the proposal of this study. This paper offers a review of the available literature on MEE modelling, analysis and planning during the period from 1973 to 2017 using a systematic approach. After reviewing relevant academic journals, peer-reviewed conference papers, and technical reports of agencies, relevant literature is analysed. In addition, the literature review is extended by means of proposing a framework methodology which considers different possible conditions and situations during MEE. Finally, insights for ship managers and policymakers are discussed and potential future research directions are identified.     

基于AIS船站的港口海事监测信息系统研究

本文简单介绍了一种利用AIS船站作为岸基设备组成海事监测信息系统的设计方案.利用分布式数据库技术将原始信息存储在各安装点并将数据送往中心数据库,对数据进行处理后再存储到中心数据库,从而实现对水上目标的监测.     

国外舰载机电磁安全性研究

现代舰船在充分发挥作战效能的同时,进一步恶化了舰面的电磁环境,一些脉冲式工作的设备装舰,对舰载机的电磁安全性产生了新的威胁.舰机电磁适配性是现代舰船总体电磁兼容设计的重要工作之一.本文在研究国外相关文献资料基础上,重点分析了舰载机处于舰面电磁环境下的几种典型受扰现象,以及舰载机处于不同工作状态下的电磁安全性问题,应用电磁兼容原理对舰载机的电磁安全性进行了评述.     

一种新型的船舶航行试验系统

船舶航行实验是船舶完工以后,验收时按规定进行交船试验的重要部分。传统的试验方法是通过GPS定位、人工测量和记录,再进行分析,耗费许多人力、物力。本试验方法是在GPS定位技术、电子海图技术、计算机处理技术基础上设计的新型试验系统。在航行试验时由GPS获取实时的位置信息,将位置信息显示到电子海图上,另外由数据库存储试验数据,试验结束时由计算机自动处理得出试验结果并可打印。使用情况表明该系统可以准确、方便地完成航行试验,试验结束后还可以离线分析,为未来的船舶设计积累相关的资料。     

An application of BBNs on the integrated energy efficiency of ship–port interface: a dry bulk shipping case

ABSTRACT

A considerable amount of energy is consumed with every completed ship voyage and each port operation performed. Recent regulative approaches by the IMO are to enforce the shipping industry to become more energy efficient and sustainable. There is a growing amount of literature on the energy efficiency management of ships and ports. However, there is still inadequate research effort on the ship–port interface in order to obtain an Integrated Energy Efficiency framework for marine transport operations. In this research, a theoretical concept is generated to measure holistic energy efficiency in shipping operations. The main purpose of this paper is to identify nodes of the integrated ship-port energy efficiency framework and develop a probabilistic approach, which can help to increase energy efficiency and reduce CO2 emissions for shipping companies. This research generates an application of BBNs on ship–port interface regarding the integrated operational energy efficiency interactions by aiming to optimise holistic operational energy efficiency and CO2 emissions. The outcomes suggest that it would be possible to increase the probability of a more energy efficient and sustainable marine transport operation by integrating the influences of port and ship operation performances and their elements on the related route planning and slow steaming decision-making.     

Impact scenario models for probabilistic risk-based design for ship–ship collision

A number of authors have proposed probabilistic risk based ship design for ship–ship collision, conditional to the local trading area of a vessel. The probability of collision and consequences are determined based on the traffic conditions in which a vessel is expected to operate. This paper investigates the adequacy of currently available models for impact scenarios, i.e. models linking the traffic conditions to the conditions at the moment of collision. An exploratory statistical model is presented to establish such a link. A probabilistic risk based design case study is performed for a fleet of RoPax vessels trading on a specified route in the Gulf of Finland. The available impact scenario models from the literature are compared with the developed probabilistic evasive maneuvering model. The results show that the impact scenario models have a very significant influence to the calculated hull breach probabilities. No well-justified impact scenario models are presently available and also the presented probabilistic evasive maneuvering model is burdened with uncertainty. Hence, to move toward a probabilistic risk based ship design paradigm for ship–ship collision in a local trading area, more focus and research is needed to establish a credible link.     

船舶污水处理技术研究与应用进展

海运、河运增长迅速,船舶污水处理日益受到广泛关注。本文以海洋船舶为主要研究对象,综述了海洋船舶污水的类型、水质特征、处理技术研究和应用进展,并展望了海洋船舶污水处理的膜生物反应器研究与应用方向。海洋船舶污水主要指压舱水以外的船舶污水,主要包括船舶生活污水和含油污水。海洋船舶生活污水的水质、水量随乘员变化较大,呈现污染物浓度高、变化大等特征,其中黑水污染物浓度BOD5991~5840 mg/L,SS 1180~4980 mg/L;含油污水成分复杂,乳化程度高,舱底水中含油量可达50000 mg/L。虽然海洋船舶污水排放标准随海域变化较大,但日益严格,这导致船舶污水处理对空间、运行维护的要求高,因此,膜生物反应器成为海洋船舶生活污水处理研究与应用的主流技术。     

基于数据库的船体大表面分舱方法研究

描述了用无界平面逐步分割船体内部任意有界空间,从而划分出每个舱室的计算机辅助设计方法,其关键技术是建立在数据库基础上的Ｂ－ｒｅｐ方法应用。提出了较完整的关于船体及其内部各种不同形状和位置的舱室几何拓扑关系的描述。解决了船体内部空间分隔具有任意性的问题,可以获得任意一个舱室或多个组合舱室的点、线和面的完整数据信息。实船的分舱设计结果证明了该方法的先进性和实用性。     

Dynamic response of a surface ship structure subjected to an underwater explosion bubble

Bubble load in a noncontact underwater explosion can cause the ship hull global response and local response. In current literature, the ship hull is usually simplified as a hull girder to analyze its global response. However, literature dealt with the local response of a 3-D surface ship hull subjected to an underwater bubble were limited. This investigation develops a procedure which couples the finite element method with doubly asymptotic approximation (DAA) method to study the problem of transient responses of a ship hull structure subjected to an underwater explosion bubble. Using a 3-D ship model as examples, the global and local responses of the ship model in vertical, transverse and longitudinal directions are performed in detail. The acceleration, velocity and displacement time histories are presented. The characteristics of both the global and local responses of the ship model are discussed. The numerical results show that besides global whipping response, the ship hull also sustains severe local responses in different directions subjected to underwater explosion bubble jetting, which should be taken into consideration.