CFG桩长螺旋钻机防倾覆方案

以哈齐客运专线路基CFG桩施工为例,施工中为防止长螺旋钻机失稳倾覆对邻近营业线造成危害,通过地基处理增强地基承载力、支腿底加焊钢板增加与地面接触面积、设置地锚等措施,增强钻机的抗倾覆性,并对钻机稳定性以及在大风、降水等不利因素下各措施的可行性进行检算.可供类似机械设备施工时借鉴.     

综合电子信息系统数字化协同设计技术

分析综合电子信息系统研制需求和外国海军综合电子信息系统的发展趋势,给出综合电子信息系统数字化协同设计需要重点开展的工作、主要建设内容和关键技术,为我国综合电子信息系统协同研制提供借鉴。     

我国汽车产业跨组织合作知识创新存在的问题及对策分析

分析了我国汽车产业链特性及供应链跨组织合作知识创新的驱动因素,并从不同的角度分析了合作知识创新的问题和不足,根据问题实质提出了建设性的意见.     

Rail-truck multimodal freight collaboration: a statistical analysis of freight-shipper perspectives

Due to the effects of congestion, capacity reduction of truck-freight carriers, growing freight transportation demand, and increasing social and environmental concerns, there is a critical need for freight shippers to improve shipping quality and reduce transportation costs. Rail-truck multimodal freight collaboration can potentially address this need. In this study, we explore freight-shipper perspectives relating to the factors that may foster or impede their usage of rail-truck multimodal freight collaboration services, and the correlations of their operational and behavioral characteristics with these factors. The study provides insights to rail and truck carriers on collaboration mechanisms that can address the needs of freight shippers, including adopting synergistic technology to improve in-transit visibility, accommodating non-containerized cargo, improving the transshipment process, designing service quality control strategies, and constructing investment and revenue-sharing plans.     

Developing a Framework to Identify Local Business and Government Vulnerability to Sea-Level Rise: A Case Study of Coastal Virginia

In this article, we develop methods for identifying local business and government vulnerabilities to sea-level rise and the natural hazards associated with it. Unlike the fairly large literature on measuring social vulnerability to natural hazards, there are very few papers that discuss methods for measuring local business or local government vulnerability even though businesses and governments are also differentially affected natural hazards. Our goal is to create measures that are easily replicable using readily available data and that are easy to explain to local planners, policymakers, and citizens. We implement our measures of local business and government vulnerability for our study area, Coastal Virginia. We combine those measures with a physical vulnerability measure to identify the areas in Coastal Virginia where planners and policymakers need to more closely examine the potential impacts of sea-level rise on their local businesses and government. While our methods are tailored to Coastal Virginia, they could be easily applied in other areas threatened by sea-level rise.     

基于仿真的船舶建造业务流程再造研究

基于仿真的业务流程再造(BPR)是降低船舶企业流程再造风险的有效手段,是建立现代造船模式的重要途径.文章首先阐述了利用仿真手段进行BPR的必要性,在此基础上,提出了船舶建造BPR仿真系统的体系结构和具体实现方式,并给出了基于该系统平台的BPR应用实践.研究表明,流程仿真有助于提高船舶建造BPR的成功率.     

日本轨道交通关联业务研究及对我国的启示

随着中国轨道交通的高速发展,轨道交通建设面临着大量的资金需求,且随着各城市开通线路的增加,运营维护资金需求也将不断增大,轨道交通企业如何实现可持续发展成为一个紧迫问题.日本的轨道交通经历150年发展,基本形成了自负盈亏的经营模式,以东京都市圈为例,对其三层次轨道交通企业经营现状及发展路径进行分析,发现大力发展关联业务是...     

基于运营服务与品质提升的成都地铁建设方案及若干建议

随着各大城市轨道交通线网的不断加密,居民乘坐轨道交通日常出行的比例越来越高,乘客对地铁车站服务品质的要求也越来越高.依托2019年年底开通的成都地铁5号线的成功经验,以对比分析为主,从长编组线路车站布置方式、车站换乘方式与楼扶梯布置、车站人性化设计、站点物业开发与后期地块开发预留条件等方面进行论证.研究发现:中部交叉型...     

Analysis of characteristics of foreign unmanned surface vehicle swarm combat application and proposed countermeasures北大核心CSCD

无人船(USV)集群作为未来海上军事运用的重要组成力量,是各国海上无人装备的重要发展方向。首先,通过梳理总结当前国外无人船集群发展战略规划与运用现状,对无人船集群作战关键技术进行归纳分析,从集群自组网通信、战场态势感知、集群协同任务分配等3个方面剖析无人船集群相关技术的研究进展;然后,对无人船集群在军事上运用的典型样式和主要效益进行分析及研判;最后,总结分析当前应对无人船集群的难点,并对无人船集群应对的技术发展予以展望。