Results 21 to 30 of about 9,681,249 (294)
Optimal inspection policy for three-state systems monitored by control charts [PDF]
, 2011 This paper presents the formulations of the expected long-run cost per time unit for a system monitored by a static control chart and by an adaptive control chart respectively.
Wenbin Wang +3 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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A Fuzzy EWMA Attribute Control Chart to Monitor Process Mean
Information, 2018 Conventional control charts are one of the most important techniques in statistical process control which are used to assess the performance of processes to see whether they are in- or out-of-control.
Muhammad Zahir Khan +4 more
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Poisson regression charts for the monitoring of surveillance time series [PDF]
, 2006 This paper presents a Poisson control chart for monitoring time series of counts typically arising in the surveillance of infectious diseases. The in-control mean is assumed to be time-varying and linear on the log-scale with intercept and seasonal ...
Höhle, Michael
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Fuzzy Approach to Statistical Control Charts
Journal of Applied Mathematics, 2013 After investigating the advantages and disadvantages of current methods of statistical process control, it becomes important to overcome the disadvantages and then use the advantages to improve a method for monitoring a process with categorical ...
Shahryar Sorooshian
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Mathematics, 2023 Simultaneous monitoring of the process parameters in a multivariate normal process has caught researchers’ attention during the last two decades. However, only statistical control charts have been developed so far for this purpose.
Hamed Sabahno, Seyed Taghi Akhavan Niaki
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Research on fuzzy control charts for fuzzy multilevel quality characteristics
International Journal of Metrology and Quality Engineering, 2021 Fuzzy control charts are proposed to solve the problem that traditional control charts cannot be applied to fuzzy quality characteristics. First, fuzzy quality characteristics are converted to representative statistics, which are fuzzy mode ...
Zhou Juan, Huang Yuhang, Wu Zonghuan
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, 2022 Although the Shewhart chart is widely used in practice because of its simplicity, applying this control chart to monitor the mean of a process may lead to two types of problems. The first concerns the typically unknown parameters involved in the distribution, while the second concerns the validity of the assumption of normality itself. The objective of
openaire +2 more sources
Journal of Engineering, 2023 Quality control charts are limited to controlling one characteristic of a production process, and it needs a large amount of data to determine control limits to control the process.
Reyam Raheem Jabbar +1 more
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Control charts for the on-line diagnostics of CMM performance [PDF]
, 1999 The quality of a production process is increasing its dependence on both the manufacturing technology, and the production control. In most applications controls are operated by relying on intelligent instrumentation to 'automatically' perform the ...
Franceschini, Fiorenzo, Settineri, Luca
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