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Criterios de aseguramiento de calidad para resultados de ensayo en la determinación de Bario por espectrometría de absorción atómica en agua residual mediante cartas de control de ShewhartQuality assurance criteria for test results on the determination of Barium by atomic absorption spectrometry in wastewater using Shewhart control charts
(Universidad Nacional de Ingeniería, 2018)
Criterios de aseguramiento de calidad para resultados de ensayo en la determinación de Bario por espectrometría de absorción atómica en agua residual mediante cartas de control de ShewhartQuality assurance criteria for test results on the determination of Barium by atomic absorption spectrometry in wastewater using Shewhart control charts
(Universidad Nacional de Ingeniería, 2018)
El control de los procesos en la manufactura: alternativas a los gráficos de control sintéticos y su optimización
(2017)
Within the production and manufacturing environment, statistical process control (SPC) is a widely used tool to maintain quality of the manufactured products. Within the SPC, the control charts have been the object of ...
Attribute charts for monitoring the mean vector of bivariate processes
(Wiley-Blackwell, 2015-06-01)
This article proposes two Shewhart charts, denoted np(xy) and np(w) charts, which use attribute inspection to control the mean vector ((x); (y)) of bivariate processes. The units of the sample are classified as first-class, ...
Monitoring the process mean with a side-sensitive synthetic- X¯ chart
(2013-01-01)
Control charts are designed to detect assignable causes that may occur in production processes. They are very simple operationally; however, this operational simplicity, that is, taking samples of fixed size n at regular ...
Construção dos gráficos de Shewhart e avaliação de sua eficiência no controle de processos de envase
(Universidade Estadual Paulista (Unesp), 2019-12-13)
Os gráficos de Shewhart há muito auxiliam na manutenção da estabilidade de diversos processos de produção. Um dos processos que mais intensamente dependem de ajustes finos e monitoramento são os processos de envase pois ...
Performance Comparisons of EWMA Control Chart Schemes
(Nctu-national Chiao Tung Univ Press, 2010-09-01)
Combining an EWMA chart with a Shewhart chart is traditionally recommended as a means of providing good protection against both small and large shifts in the process mean. Capizzi and Masarotto have proposed an EWMA chart ...
Performance Comparisons of EWMA Control Chart Schemes
(Nctu-national Chiao Tung Univ Press, 2010-09-01)
Combining an EWMA chart with a Shewhart chart is traditionally recommended as a means of providing good protection against both small and large shifts in the process mean. Capizzi and Masarotto have proposed an EWMA chart ...
Monitoring Tractor Performance Using Shewhart And Exponentially Weighted Moving Average Charts
(2021-01-01)
Statistical process control has been widely used in agricultural operations for monitoring and improving process quality. This study aims to evaluate the Shewhart and exponentially weighted moving average (EWMA) control ...