基于网络规划的道路系统设计

针对物流系统设计，基于网络规划法提出了一种在物流中心已经确定的条件下，进行道路系统的新的设计方法。通过合理但设把道路系统的设计转变为网络规划中求解最短路径的问题．通过统计每个路段的最短路径通过率．得出路段的运量负担情况，从而为道路的功能和等级设计提供依据。在此基础上．以宁波化工区的物流系统为例，建立了宁波化工区道路系统的网络模型，对宁波化工区的道路系统进行了功能设计。结果表明，该方法在区域物流系统设计中有良好的应用前景．     

Multiple aspect testing for case-control designs

When testing for the equality of two distributions in a case-control design with treatment effects presumed to act possibly on more than one aspect, different tests may be properly considered for testing for different features of a null hypothesis, leading to the multiple aspect testing issue. Two different aspects are therefore of interest: the location-aspect, based on the comparison of location indexes, and the distributional-aspect, based on the comparison of the empirical distribution functions. A simulation study shows that the combined testing procedure exhibits a good robust overall performance, and an application in biomedical research is also presented.     

Linking performance drivers in production planning and inventory control to process choice

This study investigates how process choice relates to production planning and inventory control decisions. We empirically examine the validity of deductively derived patterns about these types of decisions. More importantly, we look for normative insights by exploring how production planning and inventory control decisions affect operations performance. Our findings show that production line and continuous flow plants use more of a level production strategy, and carry less raw material and work-in-process inventory. The performance drivers for these plants, through which the operations function excels, are effective utilization of equipment, reduced finished goods inventory, and reduced setup down time. To gain forward demand visibility and batching economies, job and batch shops rely much more on backlogs in their planning process. These plants use more of a production chase strategy and position inventory lower in the bills of materials. Four performance drivers for top-performing job and batch shops are to find ways that better anticipate customers' orders, have a more responsive chase strategy, carry less raw material or purchased inventory, and shorten production planning horizon, partly through less reliance on backlogs. It is intriguing that top-performing plants not only do the expected things, given their choice of process, but also excel in selected dimensions—some of which fit the profile normally associated with a different process choice. To monitor and continuously improve operations, evaluation ‘scorecards’ should pay particular attention to performance drivers, which change depending on the plant's process choice.     

Robustness to the unavailability of data in block designs

We present general results for finding or boundingt _maxB , the maximum number of arbitrary whole blocks of observations which can be removed from a block design, and still leave all of the elementary treatment contrasts estimable. The block sizes may be larger than the number of treatments. The results are applied to BBDs, reinforced BIBDs and BBDs, BTIBDs, and a series of variance balanced incomplete block designs with two block sizes. Also given for most of these designs, are results fort _max, the maximum number of arbitrary, scattered observations that can become unavailable, and still leave all of the elementary treatment contrasts estimable.The work was undertaken while Dr. Whittinghill was visiting Ohio State University, and supported by a grant from the Natural Sciences Division, Colby College, Waterville, Maine.     

基于供应链的物流网络设计研究

比较分析了基于供应链的物流网络的设计特点,并提出了其设计原则与设计步骤.     

北京城市的开放空间和景观设计——以王府井商业街为例

针对北京王府井商业街公共空间现状的重点问题进行了调查研究.在此基础上,从提升城市生活环境质量的角度,就空间场所营造、景观设计、环境设施、交通规划等提出构想和建议,旨在探索提高城市开放空间品质的景观学路径,并通过该典型个案的研究为北京市乃至其他城市公共空间的设计提供借鉴.     

物流中心规划设计的研究与探讨

通过对物流中心建立的条件,目的和功能以及影响因素进行分析,从物流中心的布局与选址、物流中心规模设计、物流中心设施的规划与设计、物流中心信息系统的规划设计、物流中心政策环境的规划设计等方面,对物流中心规划设计的内容和方法进行了深入的研究与探讨。     

生态产业与三峡库区经济环境可持续发展

三峡库区经济落后，生态脆弱，在库区新农村建设过程中，必须考虑到资源、环境与经济的协调关系。在实地调研的基础上，本文建议：应设计特色生态工业园区，以主题概念招商引资，通过园区的生态设计为企业创造生态产业链，为生态工业的建立和发展提供平台，引导工业可持续发展；以经济株方式经营库周绿化带，发展农业旅游，促进产业间良性循环；建立生态农业循环体系，创建绿色产品基地；结合退耕还株，采用株药问种、株果问种等方式使生态建设与经济发展相互促进；垃圾资源化处理，实行垃圾无害化处理与农业有机肥联动机制。     

基于未确知测度理论的多科性医院医疗大数据治理能力成熟度评价

为实现对多科性医院大数据治理水平的分析和评估,在数据管理成熟度模型和能力成熟度模型基础上,构建多科性医院大数据治理能力成熟度评价模型。将医院大数据治理能力成熟度分为初始级、程序级、规范级、管理级和优化级五个等级,基于医院内部大数据治理特征,建立包括三级指标的成熟度评价指标体系。然后,分别用客观赋权法及组合赋权法确定各指标权重,并结合未确知测度理论和评价方法,量化评估两个三甲多科性医院大数据治理能力的成熟度。结果表明,两种赋权方法下两家医院的大数据治理能力水平均处于规范级,与两家医院大数据治理的实际情况相吻合。未确知测度理论与信息熵权相结合,可以平衡指标测量主观性和评价结果稳定性,建立的模型能为多科性医院大数据治理提供具有参考价值的决策信息。     

秦皇岛海上游船旅游开发对策

开展海上游船旅游对秦皇岛发挥资源优势、发展旅游业具有重要意义。文章分析了秦皇岛海上游船旅游发展现状,指出发展的不足,接着在明确其优势的同时,提出发展对策,以促进秦皇岛旅游业进一步的发展。