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Monitoring bivariate and trivariate mean vectors with a Shewhart chart
(2017-12-01)
In this article, we propose the use of the mean chart to control multivariate processes. The basic idea is to control the mean vector of bivariate (X, Y) and trivariate (X, Y, Z) processes by alternating the charting ...
The Walking Environment in Lima, Peru and Pedestrian–Motor Vehicle Collisions: An Exploratory Analysis
(Taylor and Francis, 2014)
Objective: Pedestrians comprise 78% of the road fatalities in Peru. The objective of this study was to explore the relationship between the walking environment and pedestrian–motor vehicle collisions. Methods: A matched ...
Análise do processo produtivo em uma fábrica de confecções do oeste do Paraná
(Universidade Tecnológica Federal do ParanáMedianeiraBrasilEngenharia de ProduçãoUTFPR, 2016-11-16)
In the processing industry, the second largest industry which creates more employment in Brazil is the fashion one. However, the competition with imported clothes increased about 24 times since the last decade, which has ...
Utilização do controle estatístico do processo para monitoramento do peso médio de cápsulas de Tuberculostáticos: estudo de caso no NUPLAM- RN
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Engenharia de ProduçãoEstratégia; Qualidade; Gestão Ambiental; Gestão da Produção e Operações, 2008-08-29)
This Master Thesis presents a case study on the use of Statistical Process Control (SPC) at the Núcleo de Pesquisas em Alimentos e Medicamentos (NUPLAM). The SPC basic tools have been applied in the process of ...
A new chart based on sample variances for monitoring the covariance matrix of multivariate processes
(Springer London Ltd, 2009-04-01)
In this article, we propose a control chart for detecting shifts in the covariance matrix of a multivariate process. The monitoring statistic is based on the standardized sample variance of p quality characteristics we ...
A new chart based on sample variances for monitoring the covariance matrix of multivariate processes
(Springer London Ltd, 2009-04-01)
In this article, we propose a control chart for detecting shifts in the covariance matrix of a multivariate process. The monitoring statistic is based on the standardized sample variance of p quality characteristics we ...
Estudo de caso de controle estatístico de processo: levantamento da variação de espessura de tábuas de pinus
(Universidade Estadual Paulista (Unesp), 2012)
This graduate work approaches the study of Statistical Process Control - SPC, in a stage production of an industrial frame, aiming to use the tool of statistical process control (SPC) to assess the process capability. Where ...