Results 1 to 10 of about 13,618 (198)
A Simple Approach for Monitoring Business Service Time Variation [PDF]
The Scientific World Journal, 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.
Su-Fen Yang, Barry C. Arnold
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Revisiting the one-sided EWMA control chart [PDF]
Journal of Applied Research on Industrial Engineering, 2022 Exponential Weighted Moving Average (EWMA) control charts have been widely used in Statistical Process Control (SPC) to detect small and persistent process shifts.
Duy Duong-Tran +2 more
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Explicit analytical solutions for the average run length of modified EWMA control chart for ARX(p,r) processes [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2021 Statistical process control (SPC) plays a necessary role in manufacturing industry processes. An essential tool for SPC used for monitoring, measuring, controlling, and improving quality in various fields is the control chart.
Korakoch Silpakob +3 more
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Walailak Journal of Science and Technology, 2021 From the principles of statistical process control, the observations are assumed to be identically and independently normally distributed, although this assumption is frequently untrue in practice.
Yadpirun SUPHARAKONSAKUN
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Assistance to the wound care patient: a challenge still open
Infermieristica Journal, 2023 Wound care used to be more of an art than a science, but thanks to contributions from different disciplines, wound care is now firmly based on science and clinical evidence using a holistic view of the patient.
Laura Stefanon, Sebastian Probst
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Valori e Valutazioni, 2022 With reference to real estate auctions activated in the context of judicial procedures (bankruptcy and/or executive), this work develops and tests a logical operating model for the assessment of the forced sale value.
Pierluigi Morano +2 more
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A Comparative Study of the EWMA and Double EWMA Control Schemes
Journal of Physics: Conference Series, 2021 Abstract A control scheme is the most excellent and irreplaceable tool in Statistical Process Control because of its effectiveness in controlling and monitoring the process, which indirectly helps ensure that the quality of a product is controlled.
K M Chan +4 more
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Connection Science, 2023 This research aims to derive the average run length (ARL) evaluation of the double exponentially weighted moving average (double EWMA) control chart for observation data that follows exponential white noise in a time series model with an autoregressive ...
Kotchaporn Karoon +2 more
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Alexandria Engineering Journal, 2022 This article proposes the variable sampling interval (VSI) exponentially weighted moving average (EWMA) t chart for the process mean using auxiliary information (AI) (denoted as the VSI EWMA t-AI chart).
Peh Sang Ng +3 more
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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. For good detection, an ability the displaced moving average chart relies depends on the normality assumption.
Kawa M. Jamal Rashid, Sozan S. Haydar
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