半潜式平台结构疲劳特征研究

本文研究2种典型结构形式半潜平台在不同海域结构应力长期分布特征。对比中国南海典型波浪散布与墨西哥湾典型波浪散布特征,计算两海域平台结构应力响应,得到平台结构应力范围长期Weibull分布形状参数。中国南海典型环境条件对于双下浮体式半潜平台结构波浪应力长期Weibull分布形状参数不大于1,对于环形浮箱半潜平台结构波浪应力长期Weibull分布形状参数不大于1.05,为针对中国南海应用简化疲劳分析方法分析半潜式平台结构疲劳寿命提供依据。同时,计算得到两类典型半潜式平台在墨西哥湾典型环境条件下结构波浪应力长期Weibull分布形状参数值不大于0.8的结论,证实对于半潜式平台的疲劳设计,南海疲劳海况较墨西哥湾海况更恶劣。     

日产坎顿工厂的生产管理

从多方视角介绍了日产汽车公司美国坎顿工厂的建设背景和投产情况,简要概括了坎顿工厂所采取的提高劳动生产率的生产集中化战略。     

标准贯入试验操作中影响因素的探讨

通过对以往工程实践经验的总结,针对试验设备、钻进工艺、作业环境及人为操作的主观因素等方面可能对标准贯入试验成果造成的影响,进行系统、深入的分析和探讨,并对试验中应注意的问题提出建议,供同行们在勘察、试验工作中参考。     

基于交互式数字测试格式的系统设计

为有效地解决DTIF数据可读性差的问题,并可将测试开发人员人工分析的GO-NODO测试数据和基于故障字典的诊断数据直接转换为ATE设备所支持的DTIF文件,为此作为数字电路TPS开发的辅助工具,将有利于提高测试开发的效率;同时,也可以作为除LASAR和数字电路故障诊断测试集自动生成软件系统Octopus之外,另一种DTIF测试数据的生成工具。对有效提高数字电路板TPS开发效率具有现实意义。     

舰船设备规范中引用环境标准思考

通过舰船设备规范中引用环境标准时常见问题的总结,重点对GJB150、GJB4国家军用标准引用中存在的问题,提出了对规范中正确引用环境标准的思考和建议。对舰船设计中规范标准的选用以及舰船、系统、设备技术规格书的编制和审查具有指导作用。     

中英标准结合的重力式码头沉降控制方法

重力式码头是一种常用的码头结构形式,如何有效控制重力式码头的工后沉降,对于保证码头建设质量至关重要。介绍了中、英标准在重力式码头沉降控制上的差异。以沙特海尔港四期项目为例,提出了结合中、英标准的重力式码头沉降控制方法,并进行了基于有限元的理论计算和现场观测试验验证,基于有限元技术的沉降计算和现场观测数据吻合较好。使用中、英标准结合控制重力式码头工后沉降既可保证施工质量,又能缩短工期,具有良好的实施性。     

A connectivity reliability-cost approach for path selection in the maritime transportation of China’s crude oil imports

The focus of this paper is the selection of paths for the maritime transportation of crude oil. In addition to transportation cost, the nodes in a maritime transportation network are always affected by extreme events. Therefore, connectivity reliability must be considered during path selection. In this paper, uncertainty variables are introduced to describe the connectivity reliability of nodes under the influence of extreme events, and an uncertain bi-objective programming model with connectivity reliability maximization and transportation cost minimization as objectives is established for path selection. China’s maritime transportation network for crude oil imports is used as a case study to validate the model, the effects of variations in the model parameters on path selection, transportation cost and connectivity reliability are discussed in the case study. The research results provide a basis on which for government decision makers to better plan crude oil transportation strategies.     

Regional Cooperation in the Post-South China Sea Arbitration Era: Potential Mechanism and Cooperative Areas

Although the South China arbitration has been settled recently, the final settlement of the South China Sea disputes remains in a political stalemate, at least for the near future. This article proposes a regional mechanism that could form the basis for further cooperation in the South China Sea. This mechanism is informed by political theory, facts on the grounds, and lessons learned from cooperative practices in other regions. As a way to work toward a resolution to the South China Sea's sovereignty disputes, and to improve on current cooperative practices, the objective of this mechanism is to involve all parties in the region and thus cover the entire South China Sea, including the disputed areas. Based on incentives for claimants, the level of political sensitivity, the advantage of involving all claimants and disputed areas, and past practices that have facilitated Taiwan's participation, it is the conclusion of this analysis that the conservation and management of marine living resources is the most promising area of cooperation. In addition, the practice in Western and Central Pacific Fisheries Commission is recommended as an appropriate model to be applied mutatis mutandis in the South China Sea.     

地铁工程车检修工职业标准体系开发

介绍了南京地铁工程车检修工职业标准体系开发的全过程,对工程车检修工进行了职业定义。阐述了工程车检修工职业标准制定依据、职业等级设计原则和功能模块的设计,简要叙述了细目表、教材及题库的开发,并对职业标准体系建设提出了展望。     

国内外轨道车辆防火标准对比分析及建议

对国内外轨道车辆的防火标准进行了对比分析,提出国内轨道车辆应采用防火标准的建议。