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The effect of the autocorrelation on the performance of the T<sup>2</sup> chart
(2015-01-01)
In this article, we consider the T<sup>2</sup> control chart for bivariate samples of size n with observations that are not only cross-correlated but also autocorrelated. The cross covariance matrix of the sample mean ...
X̄ chart with variable sample size and sampling intervals
(1997-04-01)
Recent theoretical studies have shown that the X̄ chart with variable sampling intervals (VSI) and the X̄ chart with variable sample size (VSS) are quicker than the traditional X̄ chart in detecting shifts in the process. ...
X̄ chart with variable sample size and sampling intervals
(1997-04-01)
Recent theoretical studies have shown that the X̄ chart with variable sampling intervals (VSI) and the X̄ chart with variable sample size (VSS) are quicker than the traditional X̄ chart in detecting shifts in the process. ...
Monitoring the process mean and variance using a synthetic control chart with two-stage testing
(Taylor & Francis Ltd, 2009-01-01)
In this paper, we propose a synthetic control chart with two-stage testing (SyTS chart) to control the process mean and variance. As in the case of Shewhart control charts, samples are taken from the process at regular ...
Estudo do desempenho dos gráficos de controle quando a média do processo oscila de acordo com o modelo AR(1)
(Universidade Estadual Paulista (UNESP), 2014)
A hierarchy of adaptive (X)over-bar control charts
(Elsevier B.V., 2014)
Application of signal correction for sphenophorus levis control and higher quality production in mechanized harvesting of sugarcane ratoon
(2019-12-01)
Higher quality mechanized agricultural operations can be achieved with the use of the Global Navigation Satellite System (GNSS) signal positioning tools (correction signals), allowing a higher accuracy, which is extremely ...
Controle estatístico de processos aplicado à tecnologia de congelamento industrial rápido de uma agroindústria bovina da região central do Rio Grande do Sul
(Universidade Federal de Santa MariaBrasilUFSMCentro de Ciências Naturais e Exatas, 2022-05-03)
The great competitiveness existing in the market drives the industries to a constant optimization of their production processes. There is an increasing search for product standardization, cost reduction and productivity ...