Results 11 to 20 of about 17,139,342 (375)

Revisiting the one-sided EWMA control chart [PDF]

open access: yesJournal 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
doaj   +1 more source

Optimized repetitive sampling X-bar control chart: performance evaluation and comparison with Shewhart control chart

open access: yesFrontiers in Applied Mathematics and Statistics, 2023
When initial sample information falls short of enabling industrial engineers to confidently make decisions about lot quality assessment, repetitive sampling emerges as a solution.
Jose J. Muñoz   +2 more
doaj   +1 more source

Performance of a New Time-Truncated Control Chart for Weibull Distribution Under Uncertainty

open access: yesInternational Journal of Computational Intelligence Systems, 2021
To detect indeterminacy effect in the manufacturing process, attribute control chart using neutrosophic Weibull distribution is proposed in this paper. To make the attribute control chart more efficient for persistent shifts in the industrial process, an
Ali Hussein AL-Marshadi   +3 more
doaj   +1 more source

Control charts for monitoring drip irrigation with different hydraulic heads

open access: yesRevista Ambiente & Água, 2020
This study monitored a drip irrigation system with different hydraulic heads, using control charts. The study included 25 tests, and was conducted at the Experimental Nucleus of Agricultural Engineering of the State University of Western Paraná, located ...
Allan Remor Lopes   +4 more
doaj   +1 more source

A new alternative Hotelling’s T2 control chart using MEWMA to monitor minimal mean deviation [PDF]

open access: yesMATEC Web of Conferences, 2021
Hotelling T2 control chart not only reflects the correla-tions between different quality characteristics but also has good efficiency on monitoring multivariate quality characteristics in production process.
Wang Kunyun, Li Qianqian, Li Guangdong
doaj   +1 more source

Usage of control charts for time series analysis in financial management

open access: yesJournal of Business Economics and Management, 2014
We will deal with corporate financial proceeding using statistical process control, specifically time series control charts. The article outlines intersection of two disciplines, namely econometrics and statistical process control.
Martin Kovářík   +2 more
doaj   +1 more source

A Review and Perspective on Neutrosophic Statistical Process Monitoring Methods

open access: yesIEEE Access, 2022
We review the literature on statistical process monitoring methods based on neutrosophic principles. We question some of the underlying assumptions and raise important questions about these and other neutrosophic statistical methods that need to be ...
William H. Woodall   +2 more
doaj   +1 more source

A simple approach for monitoring business service time variation. [PDF]

open access: yes, 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
core   +3 more sources

The STRAND Chart: A survival time control chart [PDF]

open access: yesStatistics in Medicine, 2018
The STRAND Chart (Survival Time, Risk‐Adjusted, N‐Division Chart) is a new tool for online risk‐adjusted (RA) monitoring of survival outcomes. The chart is drawn in continuous time, making it responsive to change in the process of interest, for example, performance over time of a surgical unit and the procedures that they employ. Though it is difficult
openaire   +2 more sources

A Time Truncated Moving Average Chart for the Weibull Distribution [PDF]

open access: yes, 2017
A control chart of monitoring the number of failures is proposed with a moving average scheme, when the life of an item follows a Weibull distribution.
Alghamdi, S.A.D.   +3 more
core   +1 more source

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