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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 ...
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 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 ...
Multivariate quality control applied to detect the soybean oil oxidation using Fourier transform infrared spectroscopy
(Marcel Dekker IncNew YorkEUA, 2002)
Multivariate quality control studies applied to Ca(II) and Mg(II) determination by a portable method
(Wiley-Blackwell, 1998-09-01)
A portable or field test method for simultaneous spectrophotometric determination of calcium and magnesium in water using multivariate partial least squares (PLS) calibration methods is proposed. The method is based on the ...
Multivariate quality control studies applied to Ca(II) and Mg(II) determination by a portable method
(1998-01-01)
A portable or field test method for simultaneous spectrophotometric determination of calcium and magnesium in water using multivariate partial least squares (PLS) calibration methods is proposed. The method is based on the ...
Robust Control and Co-simulation of a Multivariable Nonlinear Liquid Level Control System
(2022-01-01)
Introduction: Co-simulation is a technique to overcome difficulties related to the simulation of a system running in multiple environments. It is accomplished performing the global simulation by composing different simulation ...