排序方式: 共有81条查询结果,搜索用时 15 毫秒
51.
本文分析了大型活动交通特性,并在对1970年日本大阪世博会、2005年日本爱知世博会、2004年希腊雅典奥运会等大型活动会场内外的交通组织方法进行分析的基础上,探讨了大型活动组织的相关理论与方法。论文结合作者近年开展的对部分交通枢纽地区旅客集散过程的调查及客流特性的研究,分析了我国国情条件下大型活动交通组织的策略及关键问题,提出了需要研究的一些重要议题。 相似文献
52.
黄曼霞 《武汉船舶职业技术学院学报》2013,(1):120-123
本文论述了高职院校学生社团对培养大学生的政治素质、专业素质、道德素质、人文素质等综合素质具有重要的意义,同时高职院校社团活动在促进学生成长成才方面所具有的自身特色和不容低估的重要作用。 相似文献
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本文介绍了海事信息化建设和海事电子政务建设现状,以及信息整合的内容和意义,重点阐述了在海事电子政务中实现信息整合的重要作用和具体内容。 相似文献
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In this paper, we develop an approach for modeling the daily number of non-work, out-of-home activity episodes for household heads that incorporates in its framework both interactions between such members and activity setting (i.e. independent and joint activities). Trivariate ordered probit models are estimated for the heads of three household types – couple, non-worker; couple, one-worker; and couple, two-worker households – using data from a trip diary survey that was conducted in the Greater Toronto Area (GTA) during 1987. Significant interactions between household heads are found. Moreover, the nature of these interactions is shown to vary by household type implying that decision-making structures and, more generally, household dynamics also vary by household type. In terms of predictive ability, the models incorporating interactions are found to predict more accurately than models excluding interactions. The empirical findings emphasize the importance of incorporating interactions between household members in activity-based forecasting models. 相似文献
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Vineet K.Srivastava 《船舶与海洋工程学报》2014,(2)
This article discusses the dynamic state analysis of underwater towed-cable when tow-ship changes its speed in a direction making parabolic profile path. A three-dimensional model of underwater towed system is studied. The established governing equations for the system have been solved using the central implicit finite-difference method. The obtained difference non-linear coupled equations are solved by Newton's method and satisfactory results were achieved. The solution of this problem has practical importance in the estimation of dynamic loading and motion, and hence it is directly applicable to the enhancement of safety and the effectiveness of the offshore activities. 相似文献
57.
Vineet K. Srivastava 《船舶与海洋工程学报》2014,13(2):185-192
This article discusses the dynamic state analysis of underwater towed-cable when tow-ship changes its speed in a direction making parabolic profile path. A three-dimensional model of underwater towed system is studied. The established governing equations for the system have been solved using the central implicit finite-difference method. The obtained difference non-linear coupled equations are solved by Newton's method and satisfactory results were achieved. The solution of this problem has practical importance in the estimation of dynamic loading and motion, and hence it is directly applicable to the enhancement of safety and the effectiveness of the offshore activities. 相似文献
58.
Jacek Pawlak 《运输评论》2020,40(4):429-456
ABSTRACTTravel-based multitasking, also referred to as travel time use, is now a well-established concept, whose existence is supported by the technological trajectories, with mobile information and communication technologies (ICT) and vehicle automation working together to allow travel time to be more productive and enjoyable. Despite existence of reviews of travel-time multitasking studies, the systematic overview of the role digital activities, i.e. those that necessarily require modern ICT equipment to participate, has been limited, often wrapped under the umbrella term “use of ICT”, potentially obscuring their complexity and sophistication. Similarly, the role of connectivity and its attributes, e.g. speed (bandwidth), reliability, price, ease of use, data allowance or security, deserves a more systematic overview given its key role in enabling digital online activities and hence the travel-based multitasking options. This paper provides a review of 77 empirical travel-based multitasking-studies that explored the role of digital activities or connectivity. In particular, the review discusses the existing typologies of digital activities, dividing them into hardware-centric, function-centric or a combination of both (mixed). Subsequently, key contributions are discussed with respect to the treatment of digital activities and connectivity and its attributes. Based on the review, it is possible to observe that the existing studies have looked only at a handful of rather restricted online activities that do not sufficiently capture the sophistication with which individuals interact with the virtual world nowadays. Furthermore, the role of connectivity, although deeply embedded in the “C” of the “ICT” concept, has not been looked at or modelled in any detail in studies related to travel time use or its quality. This existing shortcoming might have resulted in an insufficient understanding of the mechanisms driving travel time use, the associated experience indicators of customer satisfaction, productivity or the consequences for relative attractiveness of transport modes. All of these considerations remain, however, crucial for designing, appraising and operating transport infrastructure and services that are able to take the advantage of lifestyle digitisation to meet the increasing customer needs while also delivering broader economic, social benefits and possibly also environmental benefits. 相似文献
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城市是一个复杂的社会经济系统,人们在城市系统中从事各种活动。在城市活动与其用地和出行需求之间,存在着极其复杂的相互关系。认识这种关系并利用其中的规律来进行科学合理的城市用地和交通规划,是城市规划和城市交通学科的基础研究课题之一。从分析城市活动入手,揭示了城市活动是用地和出行的需求之源,进而阐述了城市活动的两个基本供应子系统——用地和交通之间的相互关系。指出重视用地和交通的交互作用,寻求城市活动与其用地和交通之间的供求平衡,既是维持城市健康发展,也是指导城市用地和交通规划的基本原则。 相似文献
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船舶抵押融资对造船业、航运业有着至关重要的影响,事关抵押权人、抵押人以及买受人三方之间的利益.过去的立法对抵押财产转让的条件以及正常经营活动中买受人规则的适用范围等做出了严格限制,以此来保护抵押权人的利益.2020年5月28日正式通过的《民法典》对原有抵押制度进行了一系列的修改,改善了实践中抵押权人、抵押人和买受人三方... 相似文献