“新木桶理论”与长株潭城市群的空间整合

长株潭城市群正在寻找空间发展的契机,文章分析了长株潭城市群的现状,并运用"新木桶理论"从产业空间、交通空间、战略空间、生态空间等方面对其提出空间整合构想,为新时期长株潭一体化建设提供一些思路.     

长株潭物流产业集群与区域经济发展研究

本文认为,长株潭区域物流产业集群体系的构建是以长沙、湘潭、株洲三市为活动范围,以交通区位为轴线,通过分工合作来构筑合理化区域物流系统,是对区域范围内的物流活动进行有效的集成。因此研究的切入点是长株潭区域物流的战略规划,重点是区域物流设施与产业布局、物流资源的优化整合和物流信息的共享,以及区域物流协同管理方法体系的构建,难点是根据区域产业分工、区位优势和企业在供应链中的地位与作用,对物流系统如何分工合作,如何在宏观、中观与微观层面分别建立一个区域物流协同机制。     

铁路车站值班员应急处置能力评价体系构建

车站值班员应急处置能力评价,可以为新入职人员选拔和在岗职业培训提供理论依据和参考。结合车站值班员的作业内容和要求,以安全意识、响应能力、联系能力和操作能力为准则层,选取行车簿册、凭证填记准确率、命令下达、办理准确率和揭挂标识准确率等共计11项指标建立评价体系,并给出每项指标的量化测度方法。通过AHP法确定准则层之间的权重和指标之间的权重,构建基于模糊综合评价法的数学模型。随机选取某个车站值班员进行实例计算,由8位专家对车站值班员应急处置各项指标给出评语等级,验证所提出方法的可行性和有效性,并根据权重的高低,提出优化途径,即提升风险研判精确度与信息通报准确率2项指标的优秀率,能够显著提升车站值班员综合评价的结果。     

Y/JTD-2陀螺全站仪在矿山定向测量中的应用

文章主要阐述了Y/JTD-2陀螺全站仪的构成原理和作业过程,分析了陀螺全站仪在矿山联系测量中的应用。通过分析某煤矿井下多次陀螺全站仪观测数据以及贯通测量应用,得出了此仪器用于矿山测量能够大大提高作业效率、降低劳动强度、提高观测精度、数据成果可靠。     

株洲市城镇化与产业结构演进的互动关系研究

采用株洲市1993—2016 年的统计数据,利用偏离度指数及响应强度指数,分析株洲市以及所辖4个市区与4个市县产业结构对城镇化发展的响应程度。采用钱纳里修正模式分析城镇化水平与产业结构演进的协调程度,借助SPSS和多元回归模型分析城镇化与三次产业结构变化的相关性,结果表明：株洲市城镇化发展和产业结构演进都呈现出明显的阶段性特征,三次产业发展水平与城镇化水平间有较强的关联性,但二者并不完全一致,二、三产业对城镇化水平提高的带动作用不足,且城乡间产业化和城镇化发展存在较大差距。     

A Point Processes approach to bicycle sharing systems’ design and management

Public bicycle systems have attracted a great deal of attention in recent years. The success of this service heavily depends on the topology of the city and on the locations of bike stations in relation to potential demand. In fact, it is primarily important that users find bike stations in convenient locations, sufficiently close both to the origins of their trips and to their destinations, and that each rental station guarantees the availability both of enough bicycles and of enough empty docking slots.This paper proposes a point processes approach to the study of bike-sharing systems, allowing us to quantify and control parameters having a key role in decisions both of strategic and operational type.Differently from previous studies, the point processes approach catches both the interdependence among the stations and the links between spatial and time aspects of the problem.The application of point processes, in particular spatial mixed Poisson processes, to this field requires the statement and proof of an invariance property of such processes under stochastic dependent transformations, that may be of interest also from a theoretical point of view.