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Monitoring of Linear Profiles Using Linear Mixed Model in the Presence of Measurement Errors [PDF]
Mathematics, 2022 In the application of control charts, most of the research in profile monitoring is based on accurate measurements. Measurement errors, however, often exist in many manufacturing and service environments.
Wenhui Liu, Zhonghua Li, Zhaojun Wang
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Comparative Analysis Between EWMA, DEWMA and Mixed Tukey EWMA Control Chart
Academic Science Journal, 2023 The control chart is a good tool for monitoring. Single and double exponential weighted moving average control charts are suitable charts to detect small shifts in the process parameters.
Kawa M. Jamal Rashid , Sozan S. Haydar
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Mixed Control Charts Using EWMA Statistics [PDF]
IEEE Access, 2016 In this paper, two mixed control charts are designed for process monitoring when the quality characteristic of interest follows a normal distribution.
Muhammad Aslam +3 more
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Results in Engineering, 2023 Control charts are an extremely valuable tool in statistical process control (SPC) for processing information from a system or procedure over time and displaying statistically significant changes in data while also showing how a system or process is ...
Khanittha Talordphop +2 more
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Nonparametric mixed exponentially weighted moving average-moving average control chart
Scientific ReportsThis research designed a distribution-free mixed exponentially weighted moving average-moving average (EWMA-MA) control chart based on signed-rank statistic to effectively identify changes in the process location.
Muhammad Ali Raza +5 more
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A Mixed Control Chart Adapted to the Truncated Life Test Based on the Weibull Distribution
Operations Research and Decisions, 2017 The design of a new mixed attribute control chart adapted to a truncated life test has been presented. It was assumed that the lifetime of a product follows the Weibull distribution and the number of failures was observed using a truncated life test ...
Nasrullah Khan +3 more
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Multivariate Mixed EWMA-CUSUM Control Chart for Monitoring the Process Variance-Covariance Matrix [PDF]
IEEE Access, 2019 The dispersion control charts monitor the variability of a process that may increase or decrease. An increase in dispersion parameter implies deterioration in the process for an assignable cause, while a decrease in dispersion indicates an improvement in
Muhammad Riaz +3 more
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Multivariate control chart based on PCA mix for variable and attribute quality characteristics [PDF]
Production and Manufacturing Research: An Open Access Journal, 2018 Two types of control charts exist based on different quality characteristics: variable and attribute. These characteristics are commonly monitored using separate procedures.
Muhammad Ahsan +4 more
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A mixed control chart for monitoring failure times under accelerated hybrid censoring [PDF]
Journal of Applied Statistics, 2020 In an accelerated hybrid censoring scheme several stress factors can be accelerated to make the products to respond to fail more quickly than under normal operating conditions. In such situations, the control charts available in the literature cover the attribute characteristics only to monitor the performance of the process over time.
Muhammad, Aslam +5 more
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Heliyon, 2022 The products are commonly measured by two types of quality characteristics. The variable characteristics measure the numerical scale. Meanwhile, the attribute characteristics measure the categorical data.
Muhammad Ahsan +3 more
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