南宁大桥缆索吊机集中监控系统

介绍了基于S7—300系列PLC和变频器组成的集中监控系统在南宁大桥的缆索吊机中的应用。考虑到现场施工的灵活性,保留了现场单台变频器的手动控制功能;集中监控系统由PLC、触模屏和上位机组成,集成了自动控制和远程监控的优点,使缆索吊机操作灵活、稳定、安全,系统维护和用户管理更加简单方便。     

多配送中心单向车辆调度问题的模型与禁忌搜索算法的研究

在对无时间窗和软时间窗多配送中心单向车辆调度问题进行直观描述的基础上,分别建立了相应问题的数学模型。提出了直接解决多配送中心单向车辆调度问题的禁忌搜索算法,设计了求解多配送中心单向车辆调度问题的算法流程,并对已经存在的实例进行了实验计算。     

基于GPS的烟草物流配送线路规划

文章以烟草物流配送为研究对象．介绍了GPS／GIS技术在烟草物流配送中的应用。在GPS实时监控的基础上提出以在途时间采衡量配送运输线路的工作量．据此来进行配送运输线路规划。得出适合烟草物流实际的配送运输线路规划方法。     

Minimisation of the explosion shock wave load onto the occupants inside the vehicle during trinitrotoluene charge blast

The aim of this study was to elaborate identification method of crew overload as a result of trinitrotoluene charge explosion under the military wheeled vehicle. During the study, an experimental military ground research was carried out. The aim of this research was to verify the mine blast resistance of the prototype wheeled vehicle according to STANG 4569 as well as the anti-explosive seat. Within the work, the original methodology was elaborated along with a prototype research statement. This article presents some results of the experimental research, thanks to which there is a possibility to estimate the crew's lives being endangered in an explosion through the measurement of acceleration as well as the pressure on the chest, head and internal organs. On the basis of our acceleration results, both effectiveness and infallibility of crew protective elements along with a blast mitigation seat were verified.     

企业生态位视角的商业生态系统稳定性研究

本文在利用生态位理论对商业生态系统的稳定性进行理论分析的基础上,构建了企业生态位模型。以我国××整车生产企业的商业生态系统为对象,通过计算、分析供应商的企业生态位宽度和企业生态位重叠度对商业生态系统的稳定性进行了实证研究。结果表明,该商业生态系统中供应商之间企业生态位的分离、部分重叠、完全重叠的状况并存。整车生产企业作为商业生态系统的构建者与领导者,可通过有效的策略调整供应商之间企业生态位的宽度和重叠度来促进供应商之间的竞争与合作,保持商业生态系统的稳定与发展。     

财政补贴和税收优惠对新能源汽车产业R&D投入的影响

采用倾向得分匹配法,实证对比分析财政补贴和税收优惠对新能源汽车上市公司R&D投入的激励作用。结果表明:财政补贴能够有效促进新能源汽车产业的R&D投入,而税收优惠效果不佳。据此,可采取财政补贴为主,税收优惠为辅的财税政策,并逐渐完善财政补贴形式和补贴监管方式,从而最大限度地发挥财税政策对新能源汽车产业R&D投入的促进作用。     

我国推广天然气汽车的研究

石油短缺、生态恶化迫使人们寻求清洁替代能源。我国城市人口密度大,而天然气具有替代石油的资源潜力,这决定了我国推广天然气汽车的必要性和现实性。经过10年的试点,我国天然气汽车产业已具备诸多有利条件,但总体规模过小,尚处于发展的初步阶段。今后应重点解决好天然气资源利用、天然气汽车产业基础设施建设和天然气汽车关键技术等制约我国天然气汽车产业发展的主要问题。     

Don’t let your robots grow up to be traders: Artificial intelligence, human intelligence, and asset-market bubbles

Researchers who have examined markets populated by “robot traders” have claimed that the high level of allocative efficiency observed in experimental markets is driven largely by the “intelligence” implicit in the rules of the market. Furthermore, they view the ability of agents (artificial or human) to process information and make rational decisions as unnecessary for the efficient operation of markets. This paper presents a new series of market experiments that show that markets populated with standard robot traders are no longer efficient if time is a meaningful element, as it is in all asset markets. While simple two-season markets with human subjects reliably converge to an efficient equilibrium, markets with minimally intelligent robot traders fail to attain this equilibrium. Instead, these markets overshoot the equilibrium and then crash below it. In addition to firmly establishing the role of trader intelligence in asset-market equilibrium, these experiments also provide insights into why bubbles and crashes are consistently observed in many asset-market laboratory experiments using human subjects.     

现代物流中车辆路径问题的研究

本文阐述了车辆路径问题(VRP)的几种典型的模型和常见算法，分析了这些算法用于计算车辆路径问题的优缺点，并指出了VRP的研究范围还需向范围更广的供应链方向扩展。     

随机时间约束的城市物流配送车辆路径问题研究

考虑了城市物流配送中道路交叉口延误的影响,提出了基于一定置信水平下满足客户时间约束的机会约束模型,并用遗传算法进行了求解,实例分析表明,该模型及其算法是可行的。