Results 111 to 120 of about 1,881 (223)

Economic-statistical design of double sampling S control chart

, 2018
In this study, an economic-statistical design of the double sampling (DS) s chart is investigated. The optimal design parameters of the DS s chart are obtained by minimizing the cost subject to statistical constraints. The effectiveness of the DS s chart
Michael B. C. Khoo (8690331), Ming Ha Lee (8690328)   +1 more
core   +1 more source

Statistical control of Shewhart control charts

, 2018
Data availability has increased immensely in the past years, and so has the need for data analysis techniques. A key point of interest is often to use process data to detect changes in the underlying process. This applies to numerous environments, ranging from standard manufacturing processes to intelligence agencies using complex network data to ...
openaire   +1 more source

監控變異數成分之模擬Shewhart管制圖

, 2010
碩士在許多工業製程中, 製程的總變異可被分解為變異數成分(variance component) 之組合, 而變異數成分即為由某特定原因所造成之變異。倘若能針對變異數成分個別進行監控以取代對總變異的監控方式, 當製程出現失控訊息時, 便可縮小尋找可歸屬原因的範圍。本論文討論當製程使用單因子隨機效應模型下, 如何對其變異數成分進行監控。文獻上已有學者對此問題進行研究, Chang 和Gan [1] 提出近似迴歸法(approximate regression method) 來解決此一問題 ...
謝亦瑋; Hsieh, Yi-wei
core  

A Phase I nonparametric Shewhart-type control chart based on the median

A nonparametric Shewhart-type control chart is proposed for monitoring the location of a continuous variable in a Phase I process control setting. The chart is based on the pooled median of the available Phase I samples and the charting statistics are ...
S. W. Human, M. A. Graham, S. Chakraborti   +2 more
core   +1 more source

Monitoring process mean with a new EWMA control chart Um novo gráfico de controle EWMA para monitoramento da média de processo

Production, 2011
In practice, sometimes the process data did not come from a known population distribution. So the commonly used Shewhart variables control charts are not suitable since their performance could not be properly evaluated.
Yang Su-Fen, Tsai Wen-Chi, Huang Tzee-Ming, Yang Chi-Chin, Cheng Smiley   +4 more
doaj  

TYPE I (α) ERROR AND ARL PERFORMANCE OF SHEWHART CONTROL CHART WITH INTERPRETATION RULES

, 2008
The Shewhart Ẋ chart is very popular tool in practice usually supplemented with interpretation rules in order to detect the small shifts in the process mean.
JAMALI, ABDUL SATTAR
core  

Effectiveness of a Train-the-Trainer Pedagogical Pilot Workshop in Improving Educators' Knowledge and Competency in Objective Structured Clinical Examination Implementation. [PDF]

Cureus
Ben Amor A, Farhat H, Aounallah A, Naija W, Bouaziz A, Charfeddine B, Chelbi S, Bouallègue O, Ben Dhiab M.   +8 more
europepmc   +1 more source

Decision Support Tools Strengthen Early Peanut Introduction Practices and Streamline Data Automation. [PDF]

Cureus
Herlihy LE, Collins C, Reilly K, Blyth E, Gay L, Rao P, Sowers M, Jordan K.   +7 more
europepmc   +1 more source

Multivariate Statistical Process Control Charts: An Overview

In this paper we discuss the basic procedures for the implementation of multivariate statistical process control via control charting. Furthermore, we review multivariate extensions for all kinds of univariate control charts, such as multivariate ...
Bersimis, Sotiris, Panaretos, John, Psarakis, Stelios   +2 more
core  

Shewhart type simultaneous univariate control chart based on ranked set sampling scheme. [PDF]

MethodsX
Perdana SA, Mashuri M, Ahsan M.
europepmc   +1 more source