一种中转换乘航线网实用化建模方法研究

航空旅行的某些独到优势是铁路、公路与水运所不具备的,但如何最大限度地将其发挥出来往往却异常艰难。结合民航建模基本特性和面临难题剖析,比较系统、全面地论述了不同出行方式的模型联接、地域广阔性与信息庞杂性消解、时变与非精确表示,以及机器学习等的求解策略,同时给出了实验系统建造的若干技术细节解决思路。     

贪婪算法在构建物流网络中的应用

分析了目前我国物流产业发展的现状,提出了如何利用Dijkstra算法在一个物流网络的各个节点之中,找出适合作为物流中心的节点。然后根据实际情况的需要,提出了一种经过改进的并行Prim算法。根据这一算法可以在整个物流网络当中找出两条以上的物流送货线路,从而提高物流运输的工作效率并在一定程度上减少物流产生的损耗。     

钢铁企业物流研究概述

引出了物流的概念,指出了钢铁企业物流研究的重要意义。从供应链的角度介绍了钢铁企业物流研究的现状,预测了未来物流研究的方向及热点应是：面向企业内、外供应链环境的整体最优化以及与之相关的建模方法。     

自然灾害应急物流配送网络优化分析研究

介绍了自然灾害应急物流配送网络的相关概念及优化理论,在此基础上结合实例建立了优化自然灾害应急物流配送网络的数学模型,以时间作为模型的目标函数,分析模型的求解策略,并运用LINGO对该数学模型求解,得出了某一配送网络的最优配送路线,使得总配送时间消耗最少。     

Cost benefits from standardization of the packaging glass bottles

This study deals with a recycling system with two competing brewers. It is assumed that they coordinate their manufacturing operations through standardization of their glass bottles for easy implementation of extended producer responsibility (EPR). Immediate benefits from the standardization are three folds. Firstly, the sorting and exchange processes of the bottles collected for reuse by each brewer become no longer necessary. Secondly, cost reduction is achieved through streamlining of collection and reuse processes. Finally, under the stochastic demand of glass bottles their inventory holding costs and lost sales cost are reduced via inventory pooling. Through the development of the mathematical models we determine an optimal operation policy of the two brewers that maximizes the sum of benefits obtained from standardization. Numerical examples are solved to show the validity of the model. Sensitivity tests are also performed to examine the effects of system parameters on the objective function value and decision variables.     

Assessing roles of people,technology and structure in emergency management systems: a public sector perspective

Emergency management systems are a critical factor in successful mitigation of natural and man-made disasters, facilitating responder decision making in complex situations. Based on socio-technical systems, have which four components (people, technology, structure and task), this study develops a research framework of factors affecting effective emergency management. People factors include psychological factors such as responders' self-efficacy, support from family, peers and community, and training. Technology factors are task technology and information sharing. The structure factors are leadership, labour and logistics. Finally, the task factor refers to effective emergency management. This study empirically tests this framework by collecting surveys from emergency responders who participated in the 2006 Buffalo October Storm. The research results demonstrate that training and support positively affect emergency management self-efficacy which, in turn, has a positive significant relationship with effective emergency management. Task technology and information sharing also have a positive impact on effective emergency management. However, findings suggest that the structure factors do not show a significant relationship with effective emergency management. This research presents that human factors in emergency management are essential to conduct effective operations. More importantly, investing in technology to assist responders in performing their jobs during the emergency is crucial during the emergency operations.     

进化博弈视角下生态型港口物流园区演化机理研究

在物流企业具有自主选择能力的前提下,分析影响物流企业入驻生态型港口物流园区的驱动力与阻力,探讨了物流企业是否入驻生态型港口物流园区不但与其入驻之后的效益与成本大小有关,而且与政府严格的环境治理政策也密切相关;并且在有限理性假设的前提下,应用进化博弈论对生态型港口物流园区的演化机理进行了深入研究,提出在生态型港口物流园区演化过程中存在进化稳定策略。     

Change of search time and non-search time in X-ray baggage screening due to training

As found in studies of aircraft structural inspection, the time used for judging if a part of an aircraft shows tiny cracks is composed of search time, used for actively scanning, and non-search time, used for matching and decision while fixating a region of interest (Drury et al. 1997 Drury, C. G., Spencer, F. W. and Schurman, D. . Measuring human detection performance in aircraft visual inspection. Proceedings of the 41st annual Human Factors and Ergonomics Society meeting. Albuquerque, NM. pp.304–308. NM. Santa Monica, CA: HFES.  [Google Scholar]). These findings can be applied to detection of threats by X-ray screening of passenger bags at airports. To investigate whether search time and non-search time change when an experienced screener is given additional training in recognising threat objects in passenger bags, data from a European airport were analysed. A comparison of detection performance and reaction time between two large groups of screeners, one trained for 6 months, shows a large impact of training on overall performance and on both search and non-search components of the task. There was also a small but consistent decline in performance measures with screener age. This study shows a way to localise the effect of training on threat detection performance for aviation security screening. Analysis of the time needed for screening each passenger bag showed that training had a significant effect, particularly on the non-search part of the searching process (i.e. identification, recognition, decision, response execution, etc.).     

基于Fuzzy-AHP的物流企业经营风险评价模型及实证研究

经营风险评价是物流企业经营发展战略的工作难点之一,也是风险投资公司选择投资对象的一个重要环节.在对物流企业经营风险要素进行系统识别的基础上,构建了物流企业经营风险评价指标体系,进而建立了基于模糊层次分析法的风险综合评价模型.结合实际评价工作,例证了所建模型(方法)的准确性,研究结果为风投公司评价和选择物流企业投资对象、行业主管部门引导行业健康发展以及物流企业管控自身经营风险提供了切实有效的科学依据.     

5S管理理论在高校宿舍管理中的引进研究

高校宿舍管理是高校管理的一项重要内容。大学生宿舍是大学生学习、生活、成长的重要场所,是他们思想交流、心灵沟通的舞台。大学生宿舍管理的现状给管理者提出了新的问题,所以,如何在高校宿舍管理中引进和推行5S管理,是一个亟待研究的课题。