第15届男篮世锦赛中外后卫队员进攻能力的比较研究

本研究试图通过对第15届男子世界锦标赛中外男篮后卫进攻能力的比较分析,力图找出我国男篮后卫的与国外的差距,为今后我国男篮后卫队员进攻训练提供参考,促进我国男篮够味进攻水平的提高。     

Applying the Rasch measurement to explore elderly passengers' abilities and difficulties when using buses in Taipei

This study developed an approach for measuring elderly passengers' abilities and to explore their difficulties in accomplishing the actions and motions required to patronize the bus service. A conceptual framework about the required actions and motions in bus‐taking was established and a questionnaire with 18 items was designed to test their ability to use buses. A face‐to‐face survey was conducted to collect self‐rated information from 304 elderly bus passengers in Taipei. The Rasch model was applied to estimate the difficulty of each item and the ability of each person to use a bus. Results showed the relatively difficult items primarily involved keeping balance on the moving bus, reading the posted information at the station, and recognizing the buses approaching the stations; the levels of physical ability were negatively associated with the respondent's age. Suggestions are made based on improving the facilities or services to help the elderly passengers achieve the necessary actions or motions for using the bus service. Copyright © 2010 John Wiley & Sons, Ltd.     

良好的素质是提高英语口语交际能力的必要条件

世界贸易的发展促使世界航运队伍迅速扩大,我国远洋运输业从业人员英语口语交际能力偏低已成为制约我国航运事业参与国际竞争的瓶颈。学生良好的素质是提高英语口语交际能力的必要条件,因此航海类院校的英语教师一定要在教授学生英语知识和专业英语知识的同时切实培养学生良好的综合素质,尤其是心理素质。     

微表处在京沪高速公路沥青路面车辙修复中的应用

结合京沪高速公路微表处车辙修复施工,介绍微表处配合比设计、材料和设备选用、混合料选型等,重点阐述微表处车辙修复的施工工艺和质量控制措施。实践证明,微表处有效解决了高速公路路面车辙病害,提高了路面的抗滑性能和耐久性能,延长了道路的使用寿命。     

微型客车覆盖件抗凹性有限元分析与研究

文章运用有限元数值模拟方法模拟了车门外板凹陷变形过程,对其抗凹性进行了分析和评价,并采用数值模拟的方法对优化方案的可行性进行了验证。研究表明,有限元方法可以便利地预测和评定覆盖件的抗凹性能,为覆盖件结构的优化设计和材料选取提供理论指导和数据依据。     

电沉积制备Ni-Sn合金电极材料的结构与电化学性能

研究了电沉积法制备Ni-Sn合金的工艺条件对材料的结构与电化学性能的影响.研究发现,镀液成分和沉积电流密度对Ni-Sn合金电化学性能有重要影响.同时发现,所制备的Ni-Sn合金的形貌结构与其电化学性能之间存在密切关系.经过200 h耐用性试验,所制备的Ni-Sn合金电极的形貌结构与电化学性能未发生变化.     

舰炮对岸压制能力评估研究

为了达成辅助指挥员制定舰炮对岸压制作战方案的目的,展开舰炮对岸压制能力评估研究,解决已知压制时间要求条件下舰炮弹药供给能力评估问题,用于指导舰炮对岸压制任务要求的制定。     

基于折叠式夹层板船体结构耐撞性设计

提高船体结构的耐撞性能是开展船舶碰撞与搁浅研究的主要目的,通过船体结构耐撞设计提高船舶的安全性,对常规船体结构进行优化来提高结构耐撞性能是有限的,设计新型高效的吸能单元是提高结构耐撞性能的有效途径m折叠式夹层板具有吸能好、比强高、刚度大等特性,是一种理想的能量吸收单元.引进特种吸能单元FSP设计出一种新式耐撞结构形式,分别应用于双壳、单壳舷侧结构,对其耐撞性能进行研究.通过数值仿真计算分析,证实FSP舷侧结构显著提高了单壳、双壳舷侧结构的抗撞能力,FSP结构是一种先进的耐撞结构形式.     

Analysis of the Circulation System of a Slurry Shield and the Muck Carrying Ability of a Dredging Pipe北大核心CSCD

The circulation system of a slurry shield is composed of a transportation system and a processing system.For shield construction, correct selection of the circulation system for the slurry shield is directly related to construc-tion speed. Using the Nanjing Yangtze tunnel as an example, the material balance calculation of the circulation sys-tem, sieving effect analysis, and analysis of the muck carrying ability of the dredging pipe are conducted for various strata. The practical results show that above mentioned calculations and analysis method provide a good reference for the proper selection of a slurry separation system and dredge pipe. © 2018, Editorial Office of "Modern Tunnelling Technology". All right reserved.     

8K型电力机车电气故障诊断系统

介绍以逻辑控制单元（LCU)、数据采集盒、车载计算机及485通信总线为核心设计的集机车运行状态显示、故障分析和诊断、故障处理办法提示以及故障信息转储为一体的8K机车电气在线故障诊断系统,就系统硬件结构．推理机制及模块化软件设计（MSD)等方面的内容作了重点说明。现场运行表明,系统达到了设计要求,性能稳定可靠。