Aiming at the impact of finite storable capacity for intermediate products , a mixed - integer linear programming ( milp ) model of scheduling of multi - stage batch processes with finite intermediate storage is presented , which is based on the state - task - network ( stn ) concept and the hierarchical modeling approach 摘要本文结合生产实际情况，考虑了有限的中间品储存能力所带来的影响，对具有中间品储存约束的多工序批量加工排序问题进行研究。
Process capability index ( pci ) is also an important method to measure and improve quality , which has play a key role in assuring quality evidence , lowering cost and raising customer satisfaction indexes ( csi ) . this paper studies the applications of pci and control chart from the actual viewpoint , and discusses the applications of the probability a , ( 3 of type i , ii error of the control chart , the detecting power and pci based on x control chart . in addition we explore the relationship between qlf and pci , put forward the concepts of relative loss and loss extent , adopt the linear plan to optimize pci and decide the best loss extent of each process . an example is given )控制图为例，讨论了控制图的两类错误、检出力与过程能力指数在实际中的应用；重要的是讨论了质量损失与过程能力指数之间的关系，提出了相对质量损失、损失度等概念；研究了多道工序相对质量损失、损失度对总质量损失的影响，并从质量损失的角度出发，采用线性规划的方法，优化多工序的过程能力指数，确定各道工序的最佳损失度，实证讨论了这种关系，同时可以利用这种关系对供应商进行评价，给出了从全局的、动态的角度选择供应商的方法，为上下游企业间的配合、监督及共同进步提供了理论基础和实现途径。
The wax setting and casting process is complicate process with a series of procedures , including model creating , spruing and construction , rubber mold vulcanization and cutting , wax models injection , stone setting in wax model , wax tree creating , investing , investment mold burning - out , metal melting and pouring , casting cooling and divesting , etc 蜡镶铸造是一个多工序的复杂工艺过程，包括母版制作、开设水线、制作橡胶模、制作蜡模、宝石镶嵌到蜡模、种蜡树、制作石膏型、石膏型脱蜡焙烧、金属熔炼浇注、饰件冷却清理等。
The results are satisfactory . furthermore , the paper discusses the optimization of production and process of binary group production system , builds an assembled model of production planning and scheduling of multi - type and multi - process by expanding the existent model , taking into consideration of pieces 讨论了两工序成组生产系统的生产量与作业顺序的优化问题，考虑了组问平行、组内平行顺序的工件移动方式，通过扩展该模型建立了成组流水线上多品种多工序加工时生产计划和调度的集成模型，从计算智能优化的角度，提出了一种二进制编码与有序编码相结合的二层次遗传优化方法。
