Performance Evaluation Of Skewed Process Capability Index Cs Under Lognormal Distribution
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Performance Evaluation Of Skewed Process Capability Index Cs Under Lognormal Distribution
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Author :
language : en
Publisher:
Release Date : 2021
Performance Evaluation Of Skewed Process Capability Index Cs Under Lognormal Distribution written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
Performance Evaluation Of Non Normal Process Capability Index Cnpk Under Lognormal Distribution
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Author :
language : en
Publisher:
Release Date : 2021
Performance Evaluation Of Non Normal Process Capability Index Cnpk Under Lognormal Distribution written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
Performance Evaluation Of Skewed Process Index Cs Under Gamma Distribution
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Author :
language : en
Publisher:
Release Date : 2021
Performance Evaluation Of Skewed Process Index Cs Under Gamma Distribution written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
Performance Evaluation Of Skewed Process Index Cpk Wv Under Gamma Distribution
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Author :
language : en
Publisher:
Release Date : 2021
Performance Evaluation Of Skewed Process Index Cpk Wv Under Gamma Distribution written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
Encyclopedia And Handbook Of Process Capability Indices A Comprehensive Exposition Of Quality Control Measures
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Author : Wen-lea Pearn
language : en
Publisher: World Scientific
Release Date : 2006-05-16
Encyclopedia And Handbook Of Process Capability Indices A Comprehensive Exposition Of Quality Control Measures written by Wen-lea Pearn and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-05-16 with Technology & Engineering categories.
This unique volume provides an up-to-date and detailed description of the various process capability indices widely (and sometimes misleadingly) used in the applications at production sites. The authors, who are internationally recognized experts in this area with numerous contributions to the field, provide a lucid exposition, which covers all the main aspects, developments and advances.The concept of Process Capability Index (PCI) is barely 20 years old, but the multitude of available versions can overwhelm even the most seasoned practitioner. The organized and self-contained presentation of the material starting from 1980's primitive indices (Cp and Cpk) up to the newly proposed indices for the cases of multiple dependent characteristics results in an authoritative and indispensable reference.A proper balance between theoretical investigation and “rule-of-thumb” practical procedures is maintained in order to eliminate the tensions among various methodologies of assessing the capability of industrial processes.
Handbook Of Multivariate Process Capability Indices
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Author : Ashis Kumar Chakraborty
language : en
Publisher: CRC Press
Release Date : 2021-01-06
Handbook Of Multivariate Process Capability Indices written by Ashis Kumar Chakraborty and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-01-06 with Business & Economics categories.
Providing a single-valued assessment of the performance of a process is often one of the greatest challenges for a quality professional. Process Capability Indices (PCIs) precisely do this job. For processes having a single measurable quality characteristic, there is an ample number of PCIs, defined in literature. The situation worsens for multivariate processes, i.e., where there is more than one correlated quality characteristic. Since in most situations quality professionals face multiple quality characteristics to be controlled through a process, Multivariate Process Capability Indices (MPCIs) become the order of the day. However, there is no book which addresses and explains different MPCIs and their properties. The literature of Multivariate Process Capability Indices (MPCIs) is not well organized, in the sense that a thorough and systematic discussion on the various MPCIs is hardly available in the literature. Handbook of Multivariate Process Capability Indices provides an extensive study of the MPCIs defined for various types of specification regions. This book is intended to help quality professionals to understand which MPCI should be used and in what situation. For researchers in this field, the book provides a thorough discussion about each of the MPCIs developed to date, along with their statistical and analytical properties. Also, real life examples are provided for almost all the MPCIs discussed in the book. This helps both the researchers and the quality professionals alike to have a better understanding of the MPCIs, which otherwise become difficult to understand, since there is more than one quality characteristic to be controlled at a time. Features: A complete guide for quality professionals on the usage of different MPCIs. A step by step discussion on multivariate process capability analysis, starting from a brief discussion on univariate indices. A single source for all kinds of MPCIs developed so far. Comprehensive analysis of the MPCIs, including analysis of real-life data. References provided at the end of each chapter encompass the entire literature available on the respective topic. Interpretation of the MPCIs and development of threshold values of many MPCIs are also included. This reference book is aimed at the post graduate students in Industrial Statistics. It will also serve researchers working in the field of Industrial Statistics, as well as practitioners requiring thorough guidance regarding selection of an appropriate MPCI suitable for the problem at hand.
Process Capability Indices
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Author : Samuel Kotz
language : en
Publisher: CRC Press
Release Date : 1993-06-01
Process Capability Indices written by Samuel Kotz and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993-06-01 with Business & Economics categories.
A solid, rigorous, yet comprehensible analysis of process capability indices, this work bridges the gap between theoretical statisticians and quality control practitioners, showing how an understanding of these indices can lead to process improvement.
Process Capability Evaluation For Square Bumps With Mean Shift
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Author : W. L. Pearn
language : en
Publisher:
Release Date : 2011
Process Capability Evaluation For Square Bumps With Mean Shift written by W. L. Pearn and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Chi-square test categories.
Process capability indices have been widely used in manufacturing industries to provide numerical measures of process potential and performance. In in-plant applications, some inevitable process mean shift may be undetected when the statistical process control charts are applied, particularly, in the bumping process for square bumps. Bothe in 2002 provided a statistical reason for considering such a shift in the process mean to accommodate the undetected mean shifts for normally distributed processes when evaluating process capability. In this paper, we consider a bumping process for square bumps in which the data can be formulated as a non-central chi-square distribution, a class of non-normal distributions. To evaluate the popular yield-based process capability Cpk more accurately, we accommodate the magnitudes of undetected mean shifts using the modified capability evaluation formula and tabulate the detection powers under various subgroup sizes and non-central chi-square parameters. Based on the modified process capability evaluation, we can provide a more reliable process capability evaluation of capability index Cpk for square bumps and make more correct decisions. For illustration purpose, a real application in a bumping factory which is located on the Science-based Industrial Park in Hsinchu, Taiwan, is presented.
Process Performance Evaluation With Imprecise Information
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Author : Chien-Wei Wu
language : en
Publisher:
Release Date : 2010
Process Performance Evaluation With Imprecise Information written by Chien-Wei Wu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Decision making categories.
Process capability indexes have been widely used in the manufacturing industry for measuring process performance. Most studies on assessing the process capability are based on crisp estimates of process capability indexes while assuming output measurements of the process being precise number. However, in practical situations it is much more realistic that the output characteristics of continuous quantities are more or less imprecise in general. The fuzziness and stochastic uncertainty are unavoidable features of collected observations from continuous quantities. To assess the process performance more accurately, we consider the capability index CPMK, which is recognized as the most useful index to date for assessing the process capability with two-sided specification limits. We construct the fuzzy estimator for the index CPMK according to the fuzzy set theory. To make reliable decisions, we propose a decision rule to assess the process capability based on the fuzzy lower confidence bound of CPMK. A step-by-step procedure for testing process capability is provided for easy execution in practical situations. An example of manufacturing silicon wafers is also presented to illustrate the applicability of the proposed approach.
Standard Practice For Process Capability And Performance Measurement
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Author :
language : en
Publisher:
Release Date : 2020
Standard Practice For Process Capability And Performance Measurement written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Manufacturing processes categories.
This practice provides guidance for determining process capability and performance under several common scenarios of use including: normal distribution-based capability and performance indices such as Cp, Cpk, Pp, and Ppk; process capability using attribute data for non-conforming units and non-conformities per unit type variables; and additional methods in working with process capability or performance.