内河趸船系泊设施疲劳分析

基于Miner线性累积损伤准则,提出当只考虑内河趸船系泊设施的系缆、系锚应力变化作为引起疲劳损伤的主要因素时,对其系泊缆绳、锚链进行疲劳分析的具体实施步骤。以某内河斜坡式码头工程项目为依托,计算得到在4种随机过程情况下,各系泊缆绳、锚链在整个疲劳寿命期范围内的日均系缆、系锚应力-历时曲线。基于该应力值样本,计算各缆绳、锚链的累积疲劳损伤,并预测其疲劳寿命年限。该疲劳分析方法不仅可以为内河趸船系泊设施的安全隐患整改提供强有力的技术支撑,同时也能为内河新建码头工程项目提供技术储备。     

英语重音与汉语声调的语音联系

本文归纳了英语词内重音、词内非重音、英语升降调几个因素与汉语拼音五个声调之间的语音联系规律,为英语重音设定声调标准,使汉语的发音惯性在英语语音教学中起到积极的作用.     

中国当代社会的传播控制分析

随着中国当代社会传播分化的加剧，传播失衡问题随之凸现。对于传播分化与传播失衡，必须通过有效的传播控制途径，以建立完备的社会媒介发展生态，才有利于传播的良性发展。但对于这些问题，传播学理论研究尚未深入，而政府管理部门则过分依赖市场调节手段。市场调节手段是否是传播控制行之有效的途径，目前尚未有明确的答案。本文则立足于中国当代社会的传播分化、传播失衡问题的研究，着重就传播控制的基本内涵、传播控制的主要内容、途径等问题进行理论探讨和描述。     

加速业务创新转型实现企业持续发展

在电信业发展的新的阶段,传统的电信业务无法满足现代社会消费需求,创新转型业务成为企业利润的源泉,只有加速业务创新转型,使产品创造更大价值,才能保证固网运营企业的可持续发展。     

馈能电力测功机的研制及其在轿车变速器试验中的应用

传统的测功设备是以水力测功机或电涡流测功机为主,所消耗的燃油和电能较高。介绍了一种机电耦合系统内馈能电力拖动?测功机组,克服了上述测功机的不足。该系统属于多轴混合型电力拖动系统,电能在系统内部形成回馈及再利用。它主要由馈能电机、驱动电机、同步发电机及用于吸收机械功率发出电力的交流发电机、励磁控制器、主控制台、主频调速器等组成。     

Recognising customers' patterns of bus service patronage using a loyalty framework

With the aim of identifying typical characteristics of travellers, traditional segmentation approaches were based on socio-demographic variables. However, the approaches could not reveal the factors motivating individual behaviour. This result led to an emerging interest in psychological research models that are adhered to the decision-making process. Among various related theories, the concept of loyalty was attractive because the major purpose of establishing a loyalty concept is to recognise a customer's pattern towards a given service. However, there were few efforts aimed at determining market segments based on a loyalty framework. In addition, there was no consensus achieved on theoretical loyalty typology due to different empirical findings in different market contexts. This study aims to be the first loyalty-based attempt to provide an operational method of segmenting bus service market. Seeking practical implementation, another focus of this study is to determine typical characteristics of the market segments. Analyses that included cluster techniques were conducted on questionnaire data collected from 333 respondents in Hidaka city, Japan. A cross-classification between relative attitude and service patronage was successfully established, dividing the market into four segments. Segments of loyalty and no-loyalty were observed to be dominant over the remaining market. In contrast, the spurious loyalty segment was small and insignificant. An expansion of the latent loyalty segment was also observed when moving from the intention phase to the actual behaviour phase. Notably, not only demographic factors but also social awareness variables including environmental concern and elderly support were observed to be significant in distinguishing customer segments from one another.     

体验式教育在营运车辆驾驶员安全培训中的作用

针对当前交通运输行业安全教育存在的问题及产生原因,对体验式教育的特点和在安全教育中的应用进行阐述,分析如何使用体验式培训开展安全教育,提高营运车辆驾驶员素质,减少事故发生。     

文化负载语的英汉汉英互译方式探析

全球化时代,各种信息的广泛传播,文化交流越来越多,文化负载语的翻译成为译者面临的一个问题。一种语言的所谓"文化烙印",只能在另一语言的参照对比下才能显现。揭示不同语种各自的特色正是翻译的功能之一。本文就文化负载语英汉汉英互译的合理方法进行了归纳总结。     

基于减振器振子的动态性能研究

在周期振子上等间距布置橡胶减振器吸振器,形成局域共振周期振子结构,揭示了周期结构中布拉格带隙和局域共振带隙以及两种带隙的共存。采用传递矩阵法推导了周期单元的导纳矩阵,为求解周期结构中波的传播系数和动态响应奠定了理论基础。数值讨论了周期振子结构参数对两种LR和Bragg带隙边界频率的影响。推导了在任意冲击载荷作用下,周期振子结构的动态响应特征。对周期振子隔振器的冲击性能的研究为周期振子结构在低频和高频振动控制领域的应用提供参考。     

船模性能虚拟实验教学软件开发和应用

为了最大程度模拟真实实验过程,船模性能虚拟实验软件系统引入了系统噪声和观测噪声等控制学参数,结合PID控制理论,可真实地还原实验的全过程。系统适用于船舶与海洋工程专业全日制、远程教育及普通高校船舶与海洋工程专业自选教学项目。该软件系统在教学实践中取得了很好的效果。介绍软件系统、系统构成及核心算法。