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Travel time and alternative configurations analysis for automated storage/retrieval systems based on geometrical method
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作者 马新露 赵林度 lothar schulze 《Journal of Southeast University(English Edition)》 EI CAS 2007年第S1期161-167,共7页
In order to evaluate the efficiency of the automated storage/retrieval system(AS/RS)accurately,and compare different layouts of the AS/RS using mean travel time,under randomized storage conditions,an exact,geometry-ba... In order to evaluate the efficiency of the automated storage/retrieval system(AS/RS)accurately,and compare different layouts of the AS/RS using mean travel time,under randomized storage conditions,an exact,geometry-based analytical model is presented.The model can be used to compute the expected single-command and dual-command travel time for a storage/retrieval(S/R)machine which can travel simultaneously horizontally and vertically as it moves along a storage aisle.The rack may be either square in time or non square in time.Additionally,the alternative layouts of the AS/RS and travel-time models are examined.Comparing with setting the I/O point at the left-lower corner of the rack,setting the I/O point at any point at the vertical edge can help enhance the efficiency of the AS/RS. 展开更多
关键词 travel time model automated storage/retrieval system geometry method Tchebychev approximation
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找到“仓储核心”的完美尺寸和关键指标——英特诺与德国汉诺威布尼茨大学强强联手
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作者 lothar schulze 赵林度 《现代制造》 2012年第39期40-42,共3页
动念仓储在过去几年内小断持续地发展。动念仓储技术上的革新与半自动和全自动运作技术的成功衔接促成了新的系统与集成方案。各个层面的这些发展部促成了新的应用功能和领域的开发。在既定的框架条件下,动念仓储技术相比于传统的仓储... 动念仓储在过去几年内小断持续地发展。动念仓储技术上的革新与半自动和全自动运作技术的成功衔接促成了新的系统与集成方案。各个层面的这些发展部促成了新的应用功能和领域的开发。在既定的框架条件下,动念仓储技术相比于传统的仓储技术作物流和经济选择上更具吸引力。 展开更多
关键词 仓储技术 汉诺威 大学 德国 英特 尺寸 集成方案 经济选择
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Comparison on global supply chain purchasing strategies based on supply contracts
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作者 朱莉 赵林度 lothar schulze 《Journal of Southeast University(English Edition)》 EI CAS 2007年第S1期51-56,共6页
In the global supply chain in a setting characterized by exchange rate uncertainties,it is quite necessary to focus on comparative research trying to find out which kind of purchasing strategy is better in different s... In the global supply chain in a setting characterized by exchange rate uncertainties,it is quite necessary to focus on comparative research trying to find out which kind of purchasing strategy is better in different situations.The two common global purchasing strategies,risk sharing(RS)and quantity flexibility(QF),are selected to be compared.Using a real-options approach,the valuation models of RS and QF purchasing contracts are established.By means of binomial lattice technique,numerical simulation and sensitivity analysis of two stochastic dynamic programs are presented.The effects on expected discounted value by changing relative parameters are described clearly.Based on comparative analysis,it is concluded that the QF purchasing strategy is better than that of the RS especially where great volatility exists for exchange rate processes in the global supply chain. 展开更多
关键词 global supply chain supply contracts global purchasing real options binomial lattice exchange rate uncertainty
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AGV——高效物流的推动力
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作者 lothar schulze CEO 《现代制造》 2009年第8期42-43,共2页
在全球激烈的竞争环境下,制造企业需要不断改善物流效率以保持其市场主导地位,自动导引车系统(AGV)使应运而生。该系统具有卓越的性能,是一种理想的自动材料输送模式,能够实现高效物流的需求。
关键词 物流效率 自动导引车系统 AGV 竞争环境 制造企业 输送模式 市场
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