From user equilibrium to system optimum: a literature review on the role of travel information,bounded rationality and non-selfish behaviour at the network and individual levels

Travel information continues to receive significant attention in the field of travel behaviour research, as it is expected to help reduce congestion by directing the network state from a user equilibrium towards a more efficient system optimum. This literature review contributes to the existing literature in at least two ways. First, it considers both the individual perspective and the network perspective when assessing the potential effects of travel information, in contrast to earlier studies. Secondly, it highlights the role of bounded rationality as well as that of non-selfish behaviour in route choice and in response to information, complementing earlier reviews that mostly focused on bounded rationality only. It is concluded that information strategies should be tailor-made to an individual's level of rationality as well as level of selfishness in order to approach system-optimal conditions on the network level. Moreover, initial ideas and future research directions are provided for assessing the potential of travel information in order to improve network efficiency of existing road networks.     

基于能力的跨国经营

本所试图构建的“基于能力的跨国经营”理论认为,关于跨国经营的一些基本问题涉及到对企业、跨国公司本质的基本看法,企业的“能力优势”是其走向跨国经营的动因。它不仅能用“能力结构矩阵”决定跨国经营的类型,解释诸如出口、技术许可转让、投资等类型的选择;还能用“能力心态矩阵”决定跨国经营的方式,解释独自创建、兼并收购、合资联盟等方式的选择。“能力转移矩阵”还将导出跨国经营的关键成功因素。     

A review of dynamics modelling of friction draft gear

Longer and heavier trains mean larger in-train forces and more complicated force patterns. Practical experience indicates that the development of fatigue failure of coupling systems in long heavy trains may differ from conventional understanding. The friction-type draft gears are the most widely used draft gears. The ever developing heavy haul transport environment requires further or new understanding of friction draft gear behaviour and its implications for train dynamics as well as fatigue damage of rolling stock. However, modelling of friction draft gears is a highly nonlinear question. Especially the poor predictability, repeatability and the discontinuity of friction make this task more challenging. This article reviews current techniques in dynamics modelling of friction draft gears to provide a starting point that can be used to improve existing or develop new models to achieve more accurate force amplitude and pattern predictions.     

基于交通业务特征理解的车路协同可信交互方法

为保障车路协同环境下信息的可信交互,分析了车车、车路协同信息交互流程和不同模式下的交互需求,设计了车路协同可信交互架构;构建了车辆行为状态推演模型与路径扰动因子量化模型,设计了车辆主体可信度计算方法与等级评估规则,实现了车辆主体行为可信认证;通过对交通业务的有效特征理解构建了消息紧急度量化模型,利用低分辨率筛选策略初步过滤了消息报文,基于支持向量机(SVM)对消息内容进行了深度理解,形成了多分辨率交互内容认知方法;使用包含OMNeT++和SUMO仿真模拟器的Veins搭建了仿真测试环境,针对不同网联自动驾驶车辆(CAV)渗透率下的开放道路和交叉口场景开展了仿真试验,对提出的车路协同可信交互方法进行了测试验证。研究结果表明：结合交通业务特征理解能够有效改善车路协同信息交互的可信度判别,提出的方法对信标位置消息的平均认知正确率可以达到90.91%,相比基于时效性检测的可信交互方法提高了8.68%;在安全效率消息可信交互验证试验中,随着恶意车辆比例的增加,传统基于投票机制的车路协同可信交互方法逐渐失效,而提出的方法在保证单次认证时延小于13 ms的条件下,平均正确率达到94.96%,较传统基于反向传播(BP)神经网络的方法提高了3.05%,且CAV渗透率越大,可信交互检测结果的准确率越高,漏报率越低,能够满足车路协同可信交互需求。     

陈铨的"民族文学"理论与创作

陈铨是“战国策派”的主要代表，以往对他提出的“民族学”口号及其创作，都是从政治角度进行批判。本试图就“民族学”口号提出的背景，其内涵与理论来源、陈铨的创作与理论的关系作一探讨，指出“民族学”的倡导是“战国策派”化重建构想的一部分，他们以纠编为目的，却走向了另一种偏颇。     

公路施工企业投标获胜三步走

针对目前公路建设管理的特点,阐述了在国内和国际工程投标中获胜的途径。     

Model for Choosing a Payment Term in Export Business Based on Relative Preference Estimation

Introduction　　Multiobjectivedecision makinghasbeenafocusofresearchesondecision makingtheoryforalongtime .Accordingtothedifferenceinthewayforadecision makerto providepreferenceinformation ,thesolutionssofarproposedcanbeclassifiedintothefollowingthreekind…     

汽车滚装码头业务流程仿真及流程再造研究

汽车滚装是汽车物流的重要形式.我国汽车滚装发展迅猛,但其业务流程较为传统,服务水平难以适应现代物流需求.在调研汽车滚装码头的基础上,对业务流程进行分析.通过仿真建模方法找出流程的瓶颈,提出改进措施,进行业务流程优化,并对再造后的流程进行分析,证明了流程改进的合理性.     

浅谈高职院校图书馆服务创新

本文主要探讨了信息时代大环境下,通过加强图书馆藏书建设、规范管理及开展创新服务、做好效果检验等几方面的工作,积极推动高职院校图书馆服务创新,为提高高职院校人才培养质量服务。     

黄河-长江文化圈生态文学与环境关怀研究思考

生态文学作为当今文学研究中一个热门的话题,有着其独特的地位与作用.对20世纪以来"黄河--长江文化圈"生态文学与环境的人文关怀的研究,在于对地域性传统文化精神的回顾,从文学意义上对人与社会的主观精神关注转入生态学意义上人与自然的关系的关注.其关注的重点应该放在地域生态理念的研究,生态文学类别的梳理,理论资源的开拓,具体文本的解读等.研究过程中应注意对生态人文、人文精神的发掘以及围绕顺从自然,认识危机,反思文化根源三条线索去思考,为文学寻找更贴近自然,更为健康,更有生命力的发展空间.