Results 11 to 20 of about 41,221 (283)

Implementation of fuzzy rule-based algorithms in p control chart to improve the performance of statistical process control [PDF]

open access: yesInternational Journal of Research in Industrial Engineering, 2018
In the statistical process control when the process is very sensitive and control limit shifts are the prime concerns, there fuzzy control charts can be a better solution.
Md. F. Rabbi, N. Chakrabarty, J. Shefa
doaj   +1 more source

Fuzzy Regression Control Chart Based on α-cut Approximation [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2010
The fuzzy regression control chart is a functional technique to evaluate the process in which the average has a trend and the data represents a linguistic or approximate value. In this study, the theoretical structure of the “α-level fuzzy midrange for α-
Sevil Sentürk
doaj   +1 more source

A Fuzzy Bivariate Poisson Control Chart [PDF]

open access: yesSymmetry, 2020
In the present paper, we develop a fuzzy bivariate Poisson (FBP) control chart based on a fuzzy c chart. The FBP chart is used to monitor the sum of the nonconformities of each quality characteristic. There are two contributions of this work. First, we propose a new fuzzy parameter estimation to create a triangular fuzzy number (TFN).
null Wibawati   +3 more
openaire   +1 more source

Solving Fuzzy Attribute Quality Control Charts with proposed Ranking Function

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2021
The attribute quality control charts are one of the main useful tools to use in control of quality product in companies. In this paper utilizing the statistical procedures to find the attribute quality control charts for through fuzzified the real data ...
Esraa Dhafer Thamer, Iden Hasan Hussein
doaj   +1 more source

Fuzzy mean and range control charts for monitoring fuzzy quality characteristics: a case study in food industries using chicken nugget [PDF]

open access: yes, 2014
Organizations must improve or at least maintain the quality of their products to be competitive in today's market. Thus, developing a new approach which could utilize more information from the production process has become an inevitable quality ...
Ahmad, Siti Azfanizam   +4 more
core   +1 more source

A fuzzy approach for the network congestion problem [PDF]

open access: yes, 2002
In the recent years, the unpredictable growth of the Internet has moreover pointed out the congestion problem, one of the problems that historicallyha ve affected the network.
Di Fatta, Giuseppe   +2 more
core   +1 more source

Performance Analysis of Interval Type-2 Fuzzy X¯ and R Control Charts

open access: yesApplied Sciences, 2023
Statistical process control (SPC) is one of the most powerful techniques for improving quality, as it is able to detect special causes of problems in processes, products and services with a remarkable degree of accuracy. Among SPC tools, X¯ and R control
Túlio S. Almeida   +3 more
doaj   +1 more source

A review on fuzzy control charts for monitoring attribute data [PDF]

open access: yes, 2012
Up to now, several methods have been proposed for monitoring processes with attribute data. These methods can be categorized into two major group; statistical methods and fuzzy methods.
Jahromi, Seyed Mojtaba Zabihinpour   +2 more
core   +1 more source

A Fuzzy EWMA Attribute Control Chart to Monitor Process Mean

open access: yesInformation, 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
doaj   +1 more source

Thread Quality Control in High-Speed Tapping Cycles [PDF]

open access: yes, 2020
Thread quality control is becoming a widespread necessity in manufacturing to guarantee the geometry of the resulting screws on the workpiece due to the high industrial costs.
Arizmendi, Mikel   +3 more
core   +3 more sources

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