A new generation of process capability indices based on fuzzy measurements

Process capability indices (PCIs) provide numerical measures on whether a process conforms to the defined manufacturing capability prerequisite. These have been successfully applied by companies to compete with and to lead high-profit markets by evaluating the quality and productivity performance. The PCI C_p compares the output of a process to the specification limits (SLs) by forming the ratio of the width between the process SLs with the width of the natural tolerance limits which is measured by six process standard deviation units. As another common PCI, C_pm incorporates two variation components which are variation to the process mean and deviation of the process mean from the target. A meaningful generalized version of above PCIs is introduced in this paper which is able to handle in a fuzzy environment. These generalized PCIs are able to measure the capability of a fuzzy-valued process in producing products on the basis of a fuzzy quality. Fast computing formulas for the generalized PCIs are computed for normal and symmetric triangular fuzzy observations, where the fuzzy quality is defined by linear and exponential fuzzy SLs. A practical example is presented to show the performance of proposed indices.     

Supplier Evaluation and Selection Based on Stochastic Dominance: A Quality-Based Approach

Quality has become a major business strategy such that organizations with successful improvement of their products quality can gain productivity, enhance market penetration, achieve great profitability, and strongly sustain their competitive advantages. The quality of materials received from suppliers determines not only the quality of assembled products but also satisfaction and loyalty of downstream customers. In this article, we employ decision-making processes of the stochastic dominance on the basis of loss-based capability indices to compare certain potential suppliers. In view of compared results of the first-order and second-order stochastic dominances, each supplier is categorized as a superior supplier, weakly superior supplier, strongly non dominated supplier, or non dominated supplier. We develop a general computational procedure to select the preferable suppliers in an analytical way. To assist decision-makers in selecting preferable suppliers, quantile-quantile plots of loss-based capability indices presenting the results of the first-order stochastic dominance of the indices’ estimators are developed so that they can simultaneously visualize pair-wise comparisons of the suppliers and make appropriate decisions. Finally, a practical example invoking the stochastic dominance using the loss-based capability indices to carry out the quality-based supplier evaluation and selection is presented to demonstrate the applicability of our proposed methodology.     

On the generalized process capability under simple and mixture models

Process capability (PC) indices measure the ability of a process of interest to meet the desired specifications under certain restrictions. There are a variety of capability indices available in literature for different interest variables such as weights, lengths, thickness, and the life time of items among many others. The goal of this article is to study the generalized capability indices from the Bayesian view point under different symmetric and asymmetric loss functions for the simple and mixture of generalized lifetime models. For our study purposes, we have covered a simple and two component mixture of Maxwell distribution as a special case of the generalized class of models. A comparative discussion of the PC with the mixture models under Laplace and inverse Rayleigh are also included. Bayesian point estimation of maintenance performance of the system is also part of the study (considering the Maxwell failure lifetime model and the repair time model). A real-life example is also included to illustrate the procedural details of the proposed method.     

应用全面创新管理提高中小型企业创新能力研究

在全球抗争危机中创新型企业(包括中小型企业)表现出了其独赋的优势,而中小型企业在其转型和升级中也需要借助全面创新管理提升其创新能力.本文首先探讨了什么是创新型企业;继而讨论了如何走向创新型企业及其三个阶段:"二次创新--组合创新--全面创新";紧接着对全面创新管理的内涵、特征做了较详讨论.然后对本专辑的论文安排结构作了简要介绍.     

全员创新提升创新能力研究

基于对国内外全员创新实践的回顾以及前人的研究,本文提出了支撑全员创新的全要素创新的概念模型,并通过大样本问卷分析,揭示了全员创新实施所缺失的创新要素:创新文化、信息系统和组织结构扁平化.针对这三种创新要素的缺失,本文提出了相应的对策,同时,结合国内外大企业全员创新的成功经验,提出了中小企业实施全员创新的参考性建议.     

浙江省电子行业创新能力分析

本文以中小企业创新能力调查问卷为基础,基于全面创新管理的框架,对电子行业中回收的问卷数据进行了统计分析,并按照企业的发展阶段对样本数据进行了比较,主要结论是:在生命周期的各个阶段中,企业对技术能力的重视程度均不高;从能力的动态分析结果来看,企业的全面创新能力及其各子能力大致都遵循一种倒U型的发展轨迹.     

杭州鸿雁电器有限公司创新能力提升机制调研报告

在全面创新管理理论的分析框架之下,本文对杭州鸿雁电器有限公司的创新情况进行了分析与总结,讨论了公司战略创新、技术创新、组织创新、市场创新、文化创新、管理创新、全时空与全员创新的进展.在此基础之上,本文分析讨论了鸿雁公司创新能力提升的相关机制,并通过能力矩阵表明了鸿雁公司创新要素与创新推动力间的协同关系.     

构建“一体三桥”学习模式,探索素质培养途径

构建＂一体三桥＂学习模式目的是：探讨怎样把知识积累与能力培养过程视为一个整体,在这个过程中如何架设好基础课、专业基础课、专业理论课和专业实践课四大类课程之间＂三座桥梁＂,促进大学生知识与能力协调发展,培养高素质人才的有效途径。     

WTO框架下中国电信市场的外资准入限制分析

电信服务业是其他服务贸易得以开展的基础,中国的入世对于外国电信服务营运商来说意味着一个拥有巨大潜力的市场。本文将从当前中国电信市场存在的对外国营运商的准入限制着手,指出当前中国电信政策与WTO相关规定不符合的地方。同时结合我国《加入议定书》中的义务来分析当前电信市场准入制度的不足。     

加强改革顶层设计关键问题研究

改革顶层设计不仅是一个政治新词汇,而且具有促进思想进一步解放的重要作用。改革顶层设计既不同于战略谋划与确定,也不同于战术制定与实施,它是介于二者之间而又联系二者的关键环节。对于加强改革顶层设计这一课题应结合改革历史进程进行深入研究,从而进一步明确加强改革顶层设计需要重视和把握的重点和难点问题,即突出导向性、体现规律性、强化统筹性、明确主体性、具有操作性、重视动力性。