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The T2 chart with mixed samples to control bivariate autocorrelated processes
(2016-06-02)
In this paper, we propose the use of the T2 chart with the mixed sampling strategy (MS) to monitor the mean vector of bivariate processes with observations that fit to a first-order vector autoregressive model. With the ...
Monitoring the process mean with an ATTRIVAR chart
(2020-01-01)
In this article, we propose an ATTRIVAR chart to control the process mean. With the ATTRIVAR chart, the sampling is performed in two stages, collecting attribute and variable sample data from the same sample (attribute ...
The performance of the truncated mixed control chart
(2019-09-02)
When the mixed chart proposed by Aslam et al. (2015) is in use, the sample items are classified as defective or not defective and, depending on the number of defectives, the quality characteristic X of the sample items are ...
A new sampling strategy to reduce the effect of autocorrelation on a control chart
(2014-01-01)
On-line monitoring of quality characteristics is essential to limit scrap and rework costs due to bad quality in a manufacturing process. In several manufacturing environments, during production process data can be massively ...
Selection index using the graphical area applied to sugarcane breeding.
(Genetics and Molecular Research, 2017)
Monitoramento da qualidade da areia de moldagem em uma fundiçã o de autopeças de ferro fundido
(2010-12-01)
The purpose of this paper is to describe the application of a control chart for means with double sampling to monitor the green sand compactability in a major foundry where iron castings for the automotive segment are ...
Gráfico de controle modificado para processos com estruturas complexas de autocorrelação
(Universidade Federal do Rio Grande do NorteBrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM MATEMÁTICA APLICADA E ESTATÍSTICA, 2015-04-29)
This work proposes a modified control chart incorporating concepts of time series analysis.
Specifically, we considerer Gaussian mixed transition distribution (GMTD) models. The
GMTD models are a more general class than ...
Gráfico de controle trinomial attrivar: desenvolvimento de interface ao usuário
(Universidade Estadual Paulista (Unesp), 2021-02-23)
This project aims to develop a user interface for the determination of mixed control chart Trinomial ATTRIVAR (T-ATTRIVAR) limits by the user production process. The TATTRIVAR model (SIMÕES et al, 2019) appears as an ...
Growth standards of patients with Noonan and Noonan-like syndromes with mutations in the RAS/MAPK pathway
(WILEY-BLACKWELLHOBOKEN, 2012)
Noonan syndrome (NS) and Noonan-like syndromes (NLS) are autosomal dominant disorders caused by heterozygous mutations in genes of the RAS/MAPK pathway. The aim of the study was to construct specific growth charts for ...