Results 21 to 30 of about 192,398 (198)
Mixed Control Charts Using EWMA Statistics
IEEE Access, 2016 In this paper, two mixed control charts are designed for process monitoring when the quality characteristic of interest follows a normal distribution.
Muhammad Aslam +3 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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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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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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APSS – Software Support for Decision Making in Statistical Process Control
Kvalita Inovácia Prosperita, 2018 Purpose: SPC can be defined as the problem solving process incorporating many separate decisions including selection of the control chart based on the verification of the data presumptions.
Darja Noskievicova
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Control Charts for Multivariate Nonlinear Time Series
Revstat Statistical Journal, 2015 In this paper control charts for the simultaneous monitoring of the means and the variances of multivariate nonlinear time series are introduced. The underlying target process is assumed to be a constant conditional correlation process (cf. [3]).
Robert Garthoff +2 more
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On the Effect of Estimation Error for the Risk-Adjusted Charts
Complexity, 2020 Control charts are a popular statistical process control (SPC) technique for monitoring to detect the unusual variations in different processes. Contrary to the classical charts, control charts have also been modified to include covariates using ...
Sajid Ali +4 more
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QUALITY OF SUGARCANE MECHANIZED PLANTING [PDF]
Engenharia Agrícola, 2016 : The quality of the sugarcane plantation affects the plantation longevity, yield and production costs. Therefore, this study aimed to evaluate the quality of sugarcane mechanized planting in day and night shifts.
JORGE W. CORTEZ +4 more
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