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A control chart based on sample ranges for monitoring the covariance matrix of the multivariate processes
(Routledge Journals, Taylor & Francis Ltd, 2011-01-01)
For the univariate case, the R chart and the S(2) chart are the most common charts used for monitoring the process dispersion. With the usual sample size of 4 and 5, the R chart is slightly inferior to the S(2) chart in ...
A control chart based on sample ranges for monitoring the covariance matrix of the multivariate processes
(Routledge Journals, Taylor & Francis Ltd, 2011-01-01)
For the univariate case, the R chart and the S(2) chart are the most common charts used for monitoring the process dispersion. With the usual sample size of 4 and 5, the R chart is slightly inferior to the S(2) chart in ...
The use of principal components and univariate charts to control multivariate processes
(2008-01-01)
In this article, we evaluate the performance of the T2 chart based on the principal components (PC chart) and the simultaneous univariate control charts based on the original variables (SU X̄ charts) or based on the principal ...
The use of principal components and univariate charts to control multivariate processes
(2008-01-01)
In this article, we evaluate the performance of the T2 chart based on the principal components (PC chart) and the simultaneous univariate control charts based on the original variables (SU X̄ charts) or based on the principal ...
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 ...
A single chart with supplementary runs rules for monitoring the mean vector and the covariance matrix of multivariate processes
(2013-08-15)
The MRMAX chart is a single chart based on the standardized sample means and sample ranges for monitoring the mean vector and the covariance matrix of multivariate processes. User's familiarity with the computation of these ...
A single chart with supplementary runs rules for monitoring the mean vector and the covariance matrix of multivariate processes
(2013-08-15)
The MRMAX chart is a single chart based on the standardized sample means and sample ranges for monitoring the mean vector and the covariance matrix of multivariate processes. User's familiarity with the computation of these ...
Evaluation of the combined solar TiO2/photo-Fenton process using multivariate analysis
(2004-04-21)
The effect of combining the photocatalytic processes using TiO 2 and the photo-Fenton reaction with Fe3+ or ferrioxalate as a source of Fe2+ was investigated in the degradation of 4-chlorophenol (4CP) and dichloroacetic ...