航海专业英语会话仿真训练的探讨--开发操船模拟器在航海英语口语教学中的新运用

根据操船模拟器所提供的功能和航海专业英语口语教学的特点,探讨将操船模拟器运用于航海专业口语教学的可行性和必要性。     

美军作战网络:信息共享的发展研究

论文主要研究了美军作战网络发展的相关问题,从顶层设计、政策支持、当前的作战环境以及存在的风险等多个方面进行了分析和研究。这些实例表明,只有将美军中的信息共享文化从基于"需要知道"转为基于"需要共享",才能真正实现联合、跨机构、跨政府和多国作战。     

基于AT89C52的防汛系统子站设计

文章设计了基于AT89C52的防汛系统子站,该系统旨在实时获取准确防汛信息,并传送至中心站。项目基于该城市气候及地理特征设计,采集雨量及水位信息,并通过GSM工业手机上传中心站供防汛使用。该子站投入使用后,实现了防汛信息无人化监测。     

模糊c-均值聚类法在干港选址中的应用

合理的干港选址,对于区域经济发展起着至关重要的作用.根据干港规划布局的影响因素,引入模糊c-均值聚类法,来验证干港选址的合理性.     

Research on short-term dynamic ice cases for dynamic analysis of ice-resistant jacket platform in the Bohai Gulf

Jacket platforms in the Bohai Gulf are often victims of random ice-induced vibrations. Their design originally did not account for dynamic ice loading on the jacket structures and significant ice-induced vibrations have been observed during winters. So it is urgent to find out as to how to consider the dynamic ice loading in the design stage of an ice-resistant jacket platform in the Bohai Gulf. In this paper, based on the state-of-art developments of dynamic ice load and ice–structure interaction, the authors proposed two different approaches to determine the short-term dynamic ice cases for dynamic analysis of ice-resistant jacket platform in the Bohai Gulf, named as the failure probability-based approach and the expected loss-based approach. Considering the variation of the ice environments and the variability of ice-resistant structure's properties, the random ice spectrum and the pseudo-excitation method (PEM) are employed to improve the efficiency of the procedure. Through finite element method (FEM) modeling of the real ice-resistant jacket platforms in the Bohai Gulf, such as MSW, MUQ and NW, the characteristics of the two proposed approaches have been investigated and compared. This paper provides an open and universal framework to assist designers and owners for determining the short-term dynamic ice cases in the Bohai Gulf, in which more information can be considered in the procedure to update and modify the results if available.     

矿物掺合料对混凝土性能的影响

介绍了不同种类的矿物掺合料对混凝土的力学性能和抗氯离子渗透性能的影响试验.试验结果表明,对单掺矿物掺合料的高性能混凝土而言,在水胶比和坍落度相同的情况下,掺硅灰的混凝土的抗压强度最高,其次是掺粉煤灰的混凝土,掺矿粉的混凝土强度最低.矿物掺合料的掺入能改善混凝土抗氯离子渗透的能力,其中以硅灰为最好,其次是矿粉,粉煤灰稍差.     

全球金融危机对国际集装箱运输市场的影响及对策

美国次贷危机自2007年2月爆发以来,对全球经济产生的影响不断加大,逐渐演变成全球金融危机。虽然欧美经济体救市措施力度很大,不断追加救市资金,但金融危机的蔓延并未得到遏制,迅速向金融领域以外的其他实体经济传播,并逐步升级为全球经济危机。集装箱运输业未能独善其身,同样受到重创。班轮公司应正视此次危机对市场造成的影响,苦练内功,危中寻“机”,树立信心,积极应对。     

通道失配对测向性能的影响与分析

针对通道失配对超分辨测向性能的影响进行了理论分析，然后对各种常见的用于超分辨测向的天线阵进行了仿真实验。一方面证明了理论分析的正确性，同时也为实际的天线阵布阵提供了一些技术参考。     

伦敦国际航运服务集群的直接教育和研究支持分析

从伦敦保持国际金融中心和国际航运中心地位的关键组成——伦敦国际航运服务集群出发,分析为其提供全球领先和专业知识的航运服务教育和研究,并以提供直接教育和研究支持的英国两所院校之一——伦敦城市大学卡斯商学院为重点,为我国建设和发展国际航运中心提供有益的指导和借鉴。     

Optimal Design of a Ship Multitasking Cabin Layout Based on the Interval Optimization Method

Searching for the optimal cabin layout plan is an effective way to improve the efficiency of the overall design and reduce a ship's operation costs. The multita...