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在分析企业准时交货的影响因素和企业内部订单处理流程的基础上,针对制造型企业在准时交货中存在的问题,提出了面向交货期的生产协同模型.根据订单处理和车间调度的复杂性,并结合Multi-Agent的自主性、协调性等特点,探讨了面向交货期的生产协同系统的框架结构与多代理的功能分类,建立了基于Multi-Agent的面向交货期的生产协同物理模型.最后用一个案例分析了所建立的生产协同模型在企业中的应用,缩短了交货期,证实了所建模型的可行性. 相似文献
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以一个供应商和制造商组成的两级供应链系统为研究对象,根据交货期影响供应链定价的特点,以企业收益最大为目标,建立基于产能的面向交货期的供应链协同定价决策模型,分析了供应商如何根据自身的交货期和产能来确定产品的最适售价。通过数值分析,论证模型的有效性。此模型可以为供应链协同企业如何根据自身的产能来决策交货期和定价提供有益的指导。 相似文献
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Color tunable thin film polymer solar cells have demonstrated the potentials of a wide applications in photovoltaics printing, which is significant for ink pollution reduction and energy saving. This work presents a new effective approach to realize color-tuning photovoltaic cells with optical microcavity structures. Aluminum-doped zinc oxide is utilized as electron transport layer material. With its high electrical conductivity, the thickness tuning range can be quite large, which means the cavity length has a wide variation range. It thus provides sufficient space for optical thin film design to obtain multi colors. By the transfer matrix method, device reflection and absorption spectra are numerically investigated. Based on that, the optical principles for color tunability are explored. In further step, the relationship between device photovoltaics performance and reflective colors are also discussed. Finally, the color coordinates and luminosities are calculated. As results, the colors of the devices designed are capable to cover a relatively large region in Commission Internationale de l′Eclairage(CIE) 1931 x, y chromaticity diagram, which is available to be integrated into the advertisement poster boards, building wall printing and other display applications. 相似文献
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针对外协加工资源参与下的产品质量—成本—时间控制是一种影响因素较多的、复杂的系统工程,建立了基于集对分析的产品规划的优化模型,其目标函数采用集对分析法将产品规划的质量可靠性、经济性和时间性有机地结合起来,使优化方案的可靠性、经济性和时间性综合效益达到最佳。将基于压缩矩阵的改进模式匹配算法用于求解该优化模型,得到最佳的产品质量—成本—时间控制方案,从而为产品各零部件选择合适的外协加工资源。最后,对三针平缝机的质量—成本—时间控制问题进行了实例分析,依据其分析结果确定各零部件的外协加工资源,结果证明了所提方法的有效性和可行性。 相似文献