Results 21 to 30 of about 6,536 (217)
The development of egg hatching and storage machines equipped with cooling and heating systems and iot [PDF]
, 2021 The development of egg hatching and storage machines equipped with cooling and heating systems and IoT was for helping chicken breeders to address the issue of chicken production shortages. To produce large numbers of poultry production, eggs hatching is
Abdulrahman, Khairul Anuar +6 more
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Exponentially weighted moving average-Moving average charts for monitoring the process mean.
PLoS ONE, 2020 This research aimed to propose a newly-mixed control chart called the Exponentially Weighted Moving Average-Moving Average Chart (EWMA-MA) to detect the mean change in a process underlying symmetric and asymmetric distributions.
Saowanit Sukparungsee +2 more
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Comparison of control charts for monitoring clinical performance using binary data. [PDF]
, 2017 BACKGROUND: Time series charts are increasingly used by clinical teams to monitor their performance, but statistical control charts are not widely used, partly due to uncertainty about which chart to use.
Cromwell, David A +4 more
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Mathematics, 2023 The quality characteristic(s) are assumed to follow the normal distribution in many control chart constructions, although this assumption may not hold in some instances.
Fatimah Alshahrani +5 more
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The performance of robust control chart for change in variance. [PDF]
, 2011 A control chart for detecting shifts in the variance of a process is developed for the case where the nominal value of variance is unknown. The Shewhart S control chart is one of the most extensively used statistical process control techniques developed ...
Midi, Habshah, Ng, Kooi Huat
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Cost comparisons of modified X̅ chart for autocorrelated observations
International Journal of Metrology and Quality Engineering, 2016 This paper presents the economic design of modified X̅ chart for autocorrelated data and comparison with the economic design of Shewhart’s X̅ chart.
Prajapati D. R.
doaj +1 more source
A Combined Runs Rules Scheme for Monitoring General Inflated Poisson Processes
Mathematics, 2023 In this work, a control chart with multiple runs rules is proposed and studied in the case of monitoring inflated processes. Usually, Shewhart-type control charts for attributes do not have a lower control limit, especially when the in-control process ...
Eftychia Mamzeridou +1 more
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AN OPTIMAL CONTROL CHART FOR NON-NORMAL PROCESSES [PDF]
, 1997 International audienceIn this paper we present the application of a control chart for non-normal processes. This chart, which looks like an X S control chart is built with a leastsquares L-estimator, which can replace the arithmetic mean and standard ...
Duclos, Emmanuel, Pillet, Maurice
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A simple approach for monitoring business service time variation. [PDF]
, 2014 Control charts are effective tools for signal detection in both manufacturing processes and service processes. Much of the data in service industries comes from processes having nonnormal or unknown distributions.
Arnold, Barry C, Yang, Su-Fen
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A fuzzy nonparametric Shewhart chart based on the bootstrap approach
International Journal of Applied Mathematics and Computer Science, 2015 In this paper, we consider a nonparametric Shewhart chart for fuzzy data. We utilize the fuzzy data without transforming them into a real-valued scalar (a representative value).
Wang Dabuxilatu, Hryniewicz Olgierd
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