台湾海峡船舶交通安全的综合评价

综合考虑台湾海峡的交通量、航行环境、海上交通事故等多种因素,建立评价台湾海峡船舶交通安全的指标体系,同时运用模糊数学原理构建每个评价指标的隶属度的模糊子集,并由层次分析法得到每个指标的权重,从而建立综合评判模型,对海峡交通安全进行定量的评价,为台湾海峡定线制的实施,改善台湾海峡交通状况提供科学的依据。     

台湾海峡船舶习惯航线分析与安全建议

通过对台湾海峡航运船舶习惯航线的调查与分析，总结台湾海峡航运船舶的几种习惯航线及外海航线附近船舶交通流的主要特点，为研究实施俞湾海峡定线制，保证海峡航行船舶的安全提供参考。     

琼州海峡船舶定线制安全性研究

琼州海峡是我国水上交通的重要枢纽,对促进琼、粤两地经济发展和交流具有重要意义。根据资料统计,结果表明琼州海峡水域内历年来事故频发。目前,随着《琼州海峡船舶定线制》的实施,海峡内总体安全形势有所改善,但事故仍然时常发生。为了研究定线制实施后通航的安全性,本文结合琼州海峡实际通航特征,利用可拓理论对定线制水域进行评价,以便找出通航安全隐患,完善船舶定线制。     

水上交通冲突技术在船舶定线制警戒区中的应用

针对以分道通航制为主的船舶定线制没能很好地解决各主要交通流汇集区域的船舶会遇问题,结合船舶定线制航道交叉口与道路平交路口的相似性,引入交通冲突相关研究方法,并将其与水上交通已有的概念结合,进行船舶定线制警戒区的安全研究.通过船舶定线制航道交叉口交通流冲突的研究,对局部水域的安全状况进行评价,寻找改善措施,减少警戒区交通冲突的发生,降低事故率,减轻事故严重程度,从而改善船舶定线制交通流复杂水域交通安全状况,并为优化船舶定线制的设计方案提供参考.     

闽江口水域船舶定线制

为改善闽江口水域的船舶通航环境,理顺和简化闽江口水域的船舶交通形势,利用闽江口水域船舶自动识别系统(Automatic Identification System,AIS)数据,基于ArcGIS平台对该水域内的船舶航迹分布和交通流量等特征进行全面分析。根据定线制的国际规范,结合国内外相关学者的定线制理论成果,论述闽江口水域定线制的尺度参数设计,提出闽江口水域船舶定线制的几种可行方案。结合交通冲突技术对这些方案进行比选,得出最佳推荐方案。该研究可为指导闽江口水域船舶安全航行和缓解海事主管部门的监管压力提供参考。     

基于水上交通冲突技术的船舶定线制警戒区安全评价*

针对以分道通航制为主的船舶定线制没能解决各主要交通流汇集区域的船舶会遇问题,结合我国船舶定线制发展的特点,分析了交通冲突技术应用于船舶定线制警戒区安全研究的有效性,提出了一种以水上交通冲突技术(VTCT)和灰色聚类为理论依据的船舶定线制警戒区交通安全评价方法。应用该方法,对宁波-舟山港核心港区深水航路船舶定线制的共4个警戒区及1个环形通道的交通安全状况进行评价,评价结果为安全诊断和优化船舶定线制的设计方案等提供了依据。     

船舶定线制在我国的成功实践

1961年．第一个获得国际海事组织(IMO）批准通过的定线制一多怫尔海峡船舶定线制产生．其后．随着船舶定线制在世界各地的蓬勃发展．IMO于1985年通过了《关于船舶定线制的一般规定》．标志着定线制的完整框架已经基本确立目前．世界各国部在不断地加强遮方丽的研究，几乎每年都有新的定线制和现有的定线制修正案提交IMO通过。截止2003年11月．世界各国所建立的各种船舶定线制和报告制已过208个，     

台湾海峡两岸直航船舶交通及其规划的研究

本文在分析台湾海峡船舶交通的现状以及未来的发展,尤其是两岸海上直航对海峡船舶交通的影响的基础上,应用海上交通工程理论,提出了两岸海上直航后海峡的船舶交通及船舶交通规划.该规划可建立良好的海峡船舶交通秩序,改善两岸海上直航的通航条件,更有效地保障船舶航行安全.     

浅析渤海湾曹妃甸船舶定线制

随着曹妃甸地区的发展,水域交通环境势必恶化,因此在曹妃甸水域制定船舶定线制是必要的.本文结合曹妃甸水域的通航环境,研究、总结了对于曹妃甸水域可行的船舶定线制.     

船舶定线制和报告制对船舶航行环境影响的评价

船舶定线制和报告制在我国的实施已经有几十年的历史,为了确定船舶定线制和报告制的实施对船舶航行环境的实际影响效果,本文结合相关调查问卷的情况,利用层次分析法确定各船舶定线制和报告制评价指标的权重,进而利用模糊综合评判的方法对船舶定线制和报告制对船舶航行环境的影响进行评价。为进一步在船舶定线制和报告制区域内加强海上交通安全监管,提高船舶航行效率提供可行性参考。     

33rd International Conference on Ocean,Offshore and Arctic Engineering （OMAE2014）

正San Francisco,California,June 8-13,2014.OMAE 2014 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;·to exchange ideas and experiences whilst promoting technological progress and its application in industry·to promote international cooperation in ocean,offshore and arctic engineering.In line with the tradition of excellence of previous OMAE conferences,more than 900 technical papers are planned for presentation.Outreach for Engineers Specialty Forum This Specialty Forum is designed for students and professionals who may not be familiar with the Ocean and Offshore industry,as well as those who have just recently specialized in this field.     

The 11th International Conference on Hydrodynamics (ICHD 2014)

正19–24 October 2014 SingaporeCONFERENCE THEMES The overall aim of the ICHD Conference is to provide a forum for participants from around the world to review,discuss and present the latest developments in the broad discipline of hydrodynamics and fluid mechanics.The first International Conference on Hydrodynamics(ICHD)was initiated in 1994 in Wuxi,China.Since then,9 more ICHD conferences were held subsequently in Hong Kong,Seoul,Yokohama,Tainan,Perth,Ischia,Nantes,Shanghai and St Petersburg.Evidently the ICHD conference has become an important event among academics,researchers,engineers and operators,working in the fields closely related to the science and technology of hydrodynamics.The 11th ICHD will be held in Singapore in 2014.     

第十二届深水操作会议和展览会(英文)

正November 4-6,2014Moody Gardens HotelConvention Center/Galveston,TX The Deepwater Operations Conference and Exhibition is celebrating its 12th anniversary this year.This growing event will continue the tradition of excellence in addressing operational challenges involved in developing deepwater resources.We will return to the Moody Gardens Hotel and Convention Center on November 5-7,2014 in Galveston,Texas.     

舰艇反鱼雷技术

对目前舰艇反鱼雷技术中的非杀伤、软杀伤和硬杀伤等比较先进的手段进行了阐述,并在此基础上分析研究了舰艇反鱼雷技术的发展趋势。     

Community-Based Management for Sustainable Fisheries Resources in Phang-nga Bay,Thailand

Fishing communities, the Government of Thailand Department of Fisheries, local nongovermnental organizations, universities, the Food and Agriculture Organization of the United Nations (FAO), and FAO's Bay of Bengal Program have undertaken a partnership in management of Phang-nga Bay's coastal resources. It is the first project of its kind in Thailand, and although still in the early stages, offers insights that may contribute to our knowledge of how we can improve our management of coastal resources, including the importance of (1) building relationships within the governance process; (2) combining education, enforcement, and economic incentives to achieve compliance; (3) implementing solutions early; and (4) government support of community-based decisions. These insights reinforce trends emerging in other coastal management projects in the Asian region.     

Catalyzing Coastal Management in Kenya and Zanzibar: Building Capacity and Commitment

Site-based projects were initiated in Chawka Bay-Paje, Zanzibar, and Nyali-Bamburi-Shanzu, Kenya, to demonstrate the benefits of an integrated coastal management (ICM) approach for addressing coastal issues such as tourism development and enhancement of resource-dependent village economies in eastern Africa. A two-year, multidonor project used three primary strategies to make rapid, but sustainable, progress toward ICM. These included using interagency government teams for ICM planning, adopting an internationally recognized framework for ICM as a project ''road map,'' and explicitly incorporating capacity-building strategies into all aspects of the project. Within two years, integrated ICM action strategies, prepared through participatory processes, were being implemented at both sites, and both teams were working to expand the scale and scope of ICM in their nation. More importantly, the project helped create committed, capable, interagency groups that continue to work together to address urgent ICM issues.     

单相PWM整流器的建模与仿真分析

文章详细分析了单相VSR型PWM整流器的整流原理,建立了电流内环,电压外环的单相VSR型PWM整流控制器的数学模型和逻辑框图。在MATLAB／Simulink软件环境中进行了仿真,分析了模型的可行性。     

A simplified method for reliability- and integrity-based design of engineering systems and its application to offshore mooring systems

This paper presents a simplified method for the reliability- and the integrity-based optimal design of engineering systems and its application to offshore mooring systems. The design of structural systems is transitioning from the conventional methods, which are based on factors of safety, to more advanced methods, which require calculation of the failure probability of the designed system for each project. Using factors of safety to account for the uncertainties in the capacity (strength) or demands can lead to systems with different reliabilities. This is because the number and arrangement of components in each system and the correlation of their responses could be different, which could affect the system reliability. The generic factors of safety that are specified at the component level do not account for such differences. Still, using factors of safety, as a measure of system safety, is preferred by many engineers because of the simplicity in their application. The aim of this paper is to provide a simplified method for design of engineering systems that directly involves the system annual failure probability as a measure of system safety, concerning system strength limit state. In this method, using results of conventional deterministic analysis, the optimality factors for an integrity-based optimal design are used instead of generic safety factors to assure the system safety. The optimality factors, which estimate the necessary change in average component capacities, are computed especially for each component and a target system annual probability of system failure using regression models that estimate the effect of short and long term extreme events on structural response. Because in practice, it is convenient to use the return period as a measure to quantify the likelihood of extreme events, the regression model in this paper is a relationship between the component demands and the annual probability density function corresponding to every return period. This method accounts for the uncertainties in the environmental loads and structural capacities, and identifies the target mean capacity of each component for maximizing its integrity and meeting the reliability requirement. In addition, because various failure modes in a structural system can lead to different consequences (including damage costs), a method is introduced to compute optimality factors for designated failure modes. By calculating the probability of system failure, this method can be used for risk-based decision-making that considers the failure costs and consequences. The proposed method can also be used on existing structures to identify the riskiest components as part of inspection and improvement planning. The proposed method is discussed and illustrated considering offshore mooring systems. However, the method is general and applicable also to other engineering systems. In the case study of this paper, the method is first used to quantify the reliability of a mooring system, then this design is revised to meet the DNV recommended annual probability of failure and for maximizing system integrity as well as for a designated failure mode in which the anchor chains are the first components to fail in the system.     

无人反潜系统自主指挥控制研究

无人反潜系统的指挥控制问题是关系其具备实际作战能力的主要问题之一。论文在分析无人反潜系统指控原理和其自主指控水平分级的基础上,采用可变自主控制结构,研究了无人反潜系统分级可变自主指控实现的方法。该方法可赋予无人反潜系统可变的指挥控制自主性,使其在工作环境中能够实时评估自身的自主能力,并主动引入人工干预。这种具备人机智能融合特性的自主指挥控制方法更适应无人反潜系统在复杂战场环境中实战化的需求。     

船舶系泊定位装置方案介绍

简述船舶定位装置的功能、组成、工作原理及需要注意的问题等,对船舶系泊定位的设计有借鉴意义.