医疗服务机构的核心流程和关键流程

通过对医疗服务机构流程管理和医疗流程的研究,在医疗服务管理领域提出核心流程和关键流程的概念,在此基础上进一步分析这两类流程的属性,提出对这两类流程进行管理的内容,指出做好核心流程和关键流程的管理是有效实施流程管理的保障.     

企业过程建模体系的研究

企业过程建模作为一项支持企业过程集成与优化的共性技术，是对企业系统中与企业过程有关的特性加以抽象表达的工具和方法。首先对企业建模和过程建模进行了探讨，在此基础上，提出了一种企业过程建模体系框架（EPMF），并从四个维对EPMF进行了详细的讨论。最后对EPMF进行了简要的总结。     

过程能力指数和性能指数的若干问题研究

通过对过程能力指数Cpk和过程性能指数Ppk的定义及计算过程的研究,分析Cpk和Ppk的不同,对常用的过程能力指数做出了较为全面的解释,澄清了“Cpk为零就是合格品率为零的”错误观点,并且给出了两种指数的使用范围.     

化学气相渗（CVI）碳化硅工艺研究

对均热法、热梯度法和压差－温度梯度法三种化学相渗ＳｉＣ工艺进行了研究，结果表明：三种方法制备周期依次缩短。均热法适合制备形状复杂的样品，提高沉积效率靠增大沉积炉和多放样品来实现，整个过程受气体自由扩散所控制，热梯度法适合制备形状简单、规则的薄壁试样，每炉只能做一个，过程主要受样品内外温度梯度所控制，用该法可以制备出成分连续变化的的功能梯度材料；压差－温度梯度法适合制备板状、圆筒状厚壁样品，过程受样     

工序分析法在投影仪装配线改善过程中的应用

将投影仪组装作业按照其先后逻辑顺序和作业目的,使用工序图符号对产品组装流程进行工序分析,识别出生产流程改善点.通过改变生产工艺来减少机体反光镜组件的库存,减少在制品库存来缩短停滞时间,改善生产线布局来消除多余搬运活动.通过实施改善方案,工序总数减少,在制品库存降低70%左右,投影仪加工周期大幅降低.     

热处理工艺数据管理技术研究

针对企业热处理车间工艺管理复杂、重复工作多的现状,根据热处理的生产特点,采用热处理工艺的工艺模板化管理方案,实现工艺模板化管理,并应用到车间MES系统中,达到了工艺归类、方便应用、节省人力成本和工艺维护成本的目的.     

对民爆器材生产中Cp值重要性的分析

文中就Ｃｐ值的本质内涵作了分析．认为：借助于它控制民爆器材的生产工序，以提高产品质量是有效和重要的．     

A conjugate Bayesian approach to control chart for multi-batch and low volume production

Control chart could effectively reflect whether a manufacturing process is currently under control or not. The calculation of control limits of the control chart has been focusing on traditional frequency approach, which requires a large sample size for an accurate estimation. A conjugate Bayesian approach is introduced to correct the calculation error of control limits with traditional frequency approach in multi-batch and low volume production. Bartlett’s test, analysis of variance test and standardisation treatment are used to construct a proper prior distribution in order to calculate the Bayes estimators of process distribution parameters for the control limits. The case study indicates that this conjugate Bayesian approach presents better performance than the traditional frequency approach when the sample size is small.     

基于工序成本的多元过程能力指数分析

单一的多元过程能力指数在反映企业制造多元质量特性产品能力时存在缺陷,无法反映由于各工序成本的差异而造成的工序能力重要性的差别.基于此,从企业工序质量控制和工序成本关系的角度来分析,构建了基于工序成本修正的多元过程能力指数,反映企业的成本控制能力和产品竞争能力.最后,通过修正得到的多元过程能力指数,一方面优选企业的质量改进或控制方案,另一方面判定企业在同类产品制造中的实际质量控制能力和过程成本损失差异.     

A run-to-run control algorithm based on timely and delayed mixed-resolution information

In certain run-to-run (R2R) processes, timely accurate measurements are difficult to obtain due to slow laboratory measurement operations. Instead, only low-resolution categorical observations are observed online for important quality variables; continuous measurements for the same variables are provided after a specific amount of delay. Currently, most conventional R2R controllers cannot be applied if no continuous observations are available. It is therefore important to develop online algorithms for R2R process control based on mixed-resolution information that is partially timely and partially delayed. In this study, we take the lapping process in semiconductor manufacturing as an example and propose parameter estimation models with these mixed-resolution data for processes with the first-order autoregressive, AR(1), disturbance series. We also derive control strategies to generate recipes between production runs for better process control. The computational results of a performance evaluation show that the control performance of the proposed method is competitive compared to existing methods that are based on accurate measurements.