The impacts of built environment on home-based work and non-work trips: An empirical study from Iran

This paper aims to explore the impact of built environment attributes in the scale of one quarter-mile buffers on individuals’ travel behaviors in the metropolitan of Shiraz, Iran. In order to develop this topic, the present research is developed through the analysis of a dataset collected from residents of 22 neighborhoods with variety of land use features. Using household survey on daily activities, this study investigates home-based work and non-work (HBW and HBN) trips. Structural equation models are utilized to examine the relationships between land use attributes and travel behavior while taking into account socio-economic characteristics as the residential self-selection. Results from models indicate that individuals residing in areas with high residential and job density, and shorter distance to sub-centers are more interested in using transit and non-motorized modes. Moreover, residents of neighborhoods with mixed land uses tend to travel less by car and more by transit and non-motorized modes to non-work destinations. Nevertheless, the influences of design measurements such as street density and internal connectivity are mixed in our models. Although higher internal connectivity leads to more transit and non-motorized trips in HBW model, the impacts of design measurements on individuals travel behavior in HBN model are significantly in contrast with research hypothesis. Our study also shows the importance of individuals’ self-selection impacts on travel behaviors; individuals with special socio-demographic attributes live in the neighborhoods with regard to their transportation patterns. The findings of this paper reveal that the effects of built environment attributes on travel behavior in origins of trips do not exactly correspond with the expected predictions, when it comes in practice in a various study context. This study displays the necessity of regarding local conditions of urban areas and the inherent differences between travel destinations in integrating land use and transportation planning.     

Activity fragmentation,ICT and travel: An exploratory Path Analysis of spatiotemporal interrelationships

This paper focuses on the interrelationships between ICT, activity fragmentation and travel behaviour. The concept of fragmentation relates to how activities are spatiotemporally reorganized, by subdividing activities into smaller components that are then performed at different times and/or locations, in connection with ICT use. The association between ICT, activity fragmentation and travel relationships remains uncharted. Based on a two-day Dutch communication-activity-travel diary different associations between ICT use, paid work spatiotemporal fragmentation indicators and frequency of travel are specified and tested with Path Analysis Modelling accounting for sociodemographic and land use factors. The results demonstrate that the interrelationships between fragmentation, ICT and travel are quite complex. ICT and fragmentation apparently have a reciprocal relationship with mobile ICT use influencing the degree of spatial fragmentation whereas the usages of sedentary ICT are influenced by the degree of temporal fragmentation. Person-ICT attributes and ICT use mediate the participation in non-work activities, and can replace work and non-work travel. Fragmentation reduces work trips but at the same time restricts non-work personal travel possibilities and can reallocate time for leisure activity and travel.     

1 000 kW喷水推进组合体的研制与应用展望

喷水推进组合体自1987年首先在胜利油田超浅吃水多用途供应船"胜利221"号装用成功以来,又在多艘船舶上装用,均取得了令人满意的效果,充分验证了其推进效率高、操纵性能佳、浅水效应影响小、工作平稳、噪音低,适应变工况能力强等技术特点.最近装用于中油海浅吃水多用途工作船上的1 000 kW喷水推进组合体也取得了成功.在详细介绍其具体研制过程的基础上展望了喷水推进组合体进一步推广应用的前景.     

全舰计算环境工程项目管理研究

美军新型驱逐舰DDG-1000上的全舰计算环境(TSCE)是一项复杂的系统工程,采用最为先进的前沿技术,以软件开发工作为主,1700万行代码在"国家队"授权的、分布在25个地区的80个不同的公司同时开发。该项目不仅在技术实现方面有一定难度,而且在工程项目管理方面也具有极大的挑战性。该文主要介绍美军全舰计算环境工程项目管理的特征和经验,针对工程实施中进度和困难进行总结分析,旨在为我国舰艇信息化发展起到一定参考和借鉴的作用。     

基于工作过程系统化的高职计算机网络技术专业课程体系设计与实施

为了培养计算机网络技术网络工程岗位方向的具有创新精神的复合型网络技术技能人才,提高学生的综合素质和工程能力,广东交通职业技术学院计算机网络技术专业基于工作过程系统化构建课程体系,建立了突出职业能力培养的课程标准,推行"项目导向、任务驱动"教学模式,有效提升了学生的工程实践能力。     

基于基础IE的D310车身生产线改进

提出了D310车身生产线的改善方案。运用秒表测时方法测定流水线各工位的作业时间,找出影响流水线生产能力的瓶颈工位,运用"5W1H"提问技术和工作研究方法,分析流水线在设备能力、定员、任务分配、工艺内容及流水线布局等方面存在的问题。应用基础IE的方法及流水线平整理论缩短D310车身生产线的制造周期,实践证明改进效果明显。     

高职院校学生管理工作运行机制的研究

以培养高素质技能型专门人才为中心,针对大学生思想政治教育、习惯养成教育、综合素质教育、心理健康教育、职业指导教育等各项内容,以顺畅的学生工作秩序为基础,形成学生工作教育运行机制,构建具有伸展创造空间的教育平台,有机地聚集院校优质的人力资源,将高等职业院校全员育人融为一体。     

论码头作业费纠纷的法律性质

有关码头作业费的纠纷在中国已经持续了四年多,自宣布收取该费用之日始,它就一直是航运界的热点问题。最近负责调查此事的有关部门作出了最终的调查结论,但并未对问题做出充分的解释和说明,以至于没能彻底解决班轮公会到底能否向货主收取码头作业费这一关键问题。本文试图通过对码头作业费纠纷法律性质的分析,为解决码头作业费的收取问题奠定基础。     

由The Washington Post Co．v．Totalnews Inc．案引发的法律问题

文章围绕被加框的网站加框行为进行分析后认为：被加框的网站不是—个演绎作品；本案中的加框行为构成了不正当竞争,简单的免责声明并不足以免责。在立法机关加强相关立法的同时,当事人各方技术上的“自助”会在一定程度上减少和避免纠纷。     

盐渍软土路基加固技术

根据渤海湾盐渍软土地质特点,提出了滨海地区采用袋装砂井、土工格栅、砂垫层和超填预压联合排水固结路基基底的方法,实践证明该种软基的加固效果良好。介绍软土加固原理、施工工艺、路堤填筑技术措施、施工观测及注意事项。