Results 91 to 100 of about 5,815 (232)

EWMA Chart and Measurement Error [PDF]

open access: yes
Measurement error is a usually met distortion factor in real-world applications that influences the outcome of a process. In this paper, we examine the effect of measurement error on the ability of the EWMA control chart to detect out-of-control ...
Maravelakis, Petros   +2 more
core   +1 more source

Statistical methods for cricket team selection : a thesis presented in partial fulfilment of the requirement of the degree of Master of Applied Statistics at Massey University [PDF]

open access: yes, 1999
Cricket generates a large amount of data for both batsmen and bowlers. Methods for using this data to select a cricket team are examined. Utilising the assumption that an individual's natural ability is expressed via performance outputs, this thesis ...
Bracewell, Paul J
core  

The Enhanced EWMA Control Chart with Autocorrelation

open access: yesJurnal Teknologi, 2014
Control charts are effective tool with regard to improving process quality and productivity, Shewhart control charts are efficiently good at detecting large shifts in a given process but very slow in detecting small and moderate shifts, such problem could be tackled through design of sensitizing rules.
Farouk, Abbas Umar, Mohamad, Ismail
openaire   +2 more sources

Fault Diagnosis and Data Reconstruction of Temperature Sensors for Wind Turbine Stator Winding

open access: yesShock and Vibration, Volume 2025, Issue 1, 2025.
A proposed method for diagnosing sensor faults in the stator winding temperature sensor of a wind turbine is introduced, aiming to address the significant issues that arise when such malfunctions occur, affecting the overall stable operation of the turbine.
Ling Zhou   +6 more
wiley   +1 more source

Designing an efficient adaptive EWMA model for normal process with engineering applications

open access: yesAin Shams Engineering Journal
Stability in process parameters is required to ensure the quality of the finished item. Control charts, as one of the critical parts of statistical process monitoring (SPM), have seen widespread use across many disciplines for detecting and responding to
Zahid Rasheed   +5 more
doaj   +1 more source

Clinical performance and cost‐effectiveness of a Silicone foam with 3DFit™ technology in chronic wounds compared with standard of care: An open randomised multicentre investigation

open access: yesInternational Wound Journal, Volume 21, Issue 12, December 2024.
Abstract The objective of the study was to show the clinical performance and cost‐effectiveness of a Silicone foam dressing with 3DFit™ Technology compared to current standard of care. This was an open‐labelled, two‐arm, randomised controlled multicentre study conducted from February to December 2023.
David Voegeli   +4 more
wiley   +1 more source

Efficient Phase II Monitoring Methods for Linear Profiles Under the Random Effect Model

open access: yesIEEE Access, 2019
A profile is a functional relationship between two or more variables used to monitor the process performance and its quality. Sometimes, the aforementioned relationship is linear or nonlinear depending upon the situation. A monitoring method based on the
Tahir Abbas   +3 more
doaj   +1 more source

Eyes wide shut? The U.S. house market bubble through the lense of statistical process control [PDF]

open access: yes, 2012
While most economists agree that the recent worldwide financial crises evolved as a consequence of the US house price bubble, the related literature yet failed to deliver a consensus on the question when exactly the bubble started developing.
Berlemann, Michael   +2 more
core   +2 more sources

Monitoring process mean with a new EWMA control chart Um novo gráfico de controle EWMA para monitoramento da média de processo

open access: yesProduction, 2011
In practice, sometimes the process data did not come from a known population distribution. So the commonly used Shewhart variables control charts are not suitable since their performance could not be properly evaluated.
Yang Su-Fen   +4 more
doaj  

A Nonparametric Multivariate Control Chart Based on Data Depth [PDF]

open access: yes
For the design of most multivariate control charts, it is assumed that the observations follow a multivariate normal distribution. In practice, this assumption is rarely satisfied.
Hering, Franz   +2 more
core  

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