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Now showing items 31-40 of 46
Enhanced adaptive multivariate EWMA and CUSUM charts for process mean
(
Taylor and Francis Ltd.
, 2021 , Article)
The multivariate charts are mostly used to simultaneously monitor several quality characteristics in manufacturing processes. In this study, we enhance the sensitivities of the recently proposed adaptive multivariate EWMA ...
Employing machine learning techniques in monitoring autocorrelated profiles
(
Springer Science and Business Media Deutschland GmbH
, 2023 , Article)
In profile monitoring, it is usually assumed that the observations between or within each profile are independent of each other. However, this assumption is often violated in manufacturing practice, and it is of utmost ...
Monitoring non-parametric profiles using adaptive EWMA control chart
(
Nature Research
, 2022 , Article)
To monitor the quality of a process in statistical process control (SPC), considering a functional relationship between a dependent variable and one or more independent variables (which is denoted as profile monitoring) ...
Improved Nonparametric Control Chart Based on Ranked Set Sampling with Application of Chemical Data Modelling
(
Hindawi Limited
, 2022 , Article)
e statistical performance of parametric control charts is questionable when the underlying process does not follow any speci ed
probability distribution. Nonparametric control charts are the best substitute for this ...
Efficient monitoring of coefficient of variation with an application to chemical reactor process
(
John Wiley and Sons Ltd
, 2021 , Article)
Control chart is a useful tool to monitor the performance of the industrial or production processes. Control charts are mostly adopted to detect unfavorable variations in process location (mean) and dispersion (standard ...
On designing an assorted control charting approach to monitor process dispersion: an application to hard-bake process
(
Taylor and Francis Ltd.
, 2020 , Article)
The monitoring of process variability is an important feature to get optimal output from a process. Control charts are vital tools used for efficient process monitoring. The commonly used types of charts include Shewhart, ...
Response Surface Methodology for Optimization of Operational Parameters to Remove Ciprofloxacin from Contaminated Water in the Presence of a Bacterial Consortium
(
American Chemical Society
, 2022 , Article)
Ciprofloxacin (CFX) is a broad-spectrum fluoroquinolone antibiotic that is widely used to treat bacterial infections in humans and other animals. However, its unwanted occurrence in any (eco)system can affect nontarget ...
A new hwma dispersion control chart with an application to wind farm data
(
MDPI AG
, 2020 , Article)
Recently, a homogeneously weighted moving average (HWMA) chart has been suggested for the efficient detection of small shifts in the process mean. In this study, we have proposed a new one-sided HWMA chart to effectively ...
One-Sided and Two One-Sided Multivariate Homogeneously Weighted Moving Charts for Monitoring Process Mean
(
Institute of Electrical and Electronics Engineers Inc.
, 2021 , Article)
Multivariate memory-type control charts that use information from both the current and previous process observations have been proposed. They are designed to detect shifts in both upper and downward directions with equal ...
Bayesian Monitoring of Linear Profiles Using DEWMA Control Structures with Random X
(
Institute of Electrical and Electronics Engineers Inc.
, 2018 , Article)
The process structures of manufacturing industry are efficiently modeled using linear profiles. Classical and Bayesian set-ups are two well-appreciated schemes for designing control charts for the monitoring of process ...