Results 21 to 30 of about 17,058 (192)
Gestão & Produção, 2002 Cartas de controle estatístico vêm sendo utilizadas com sucesso no monitoramento do desempenho de processos industriais. Nos últimos anos, diversas modificações nas cartas de Shewhart foram propostas na literatura.
Renato Michel, Flávio S. Fogliatto
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Shewhart's control charts and process capability ratio applied to a sewage treatment station [PDF]
Engenharia Agrícola, 2014 The current study used statistical methods of quality control to evaluate the performance of a sewage treatment station. The concerned station is located in Cascavel city, Paraná State.
Fábio Orssatto +3 more
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MONITORING TRACTOR PERFORMANCE USING SHEWHART AND EXPONENTIALLY WEIGHTED MOVING AVERAGE CHARTS [PDF]
Engenharia Agrícola, 2021 Statistical process control has been widely used in agricultural operations for monitoring and improving process quality. This study aims to evaluate the Shewhart and exponentially weighted moving average (EWMA) control charts to monitor the performance ...
Murilo A. Voltarelli +4 more
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New Shewhart-EWMA and Shewhart-CUSUM Control Charts for Monitoring Process Mean [PDF]
Scientia Iranica, 2018 In this paper, we propose new Shewhart-EWMA (SEWMA) and Shewhart-CUSUM (SCUSUM) control charts using the varied L ranked set sampling (VLRSS) for monitoring the process mean, namely the SEWMA-VLRSS and SCUSUM-VLRSS charts. The run length characteristics of the proposed charts are computed using extensive Monte Carlo simulations. The proposed charts are
Abdul Haq, Muhammad Awais
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GRAFIK PENGENDALI NON PARAMETRIK EMPIRIK
Media Statistika, 2008 Shewhart control chart is constructed base on the normality assumption of process. If the normality is fail then the empirical control chart can be an alternative solution.
Rukun Santoso
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Diagram Kendali MAD pada Harga Cabai Rawit di Jawa Tengah
Jurnal Matematika, 2021 Food price policies affect the stabilization of food prices in Indonesia. The control chart is one of the tools used to measure the stabilization of food prices. The control chart was first introduced by W.A. Shewhart.
Yolanda Norasia
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IEEE Access, 2021 A Simultaneous control chart is a well-known tool for monitoring the process mean and process variability with a single chart. In recent decades, many researchers have been interested in developing simultaneous control charts.
Rumaisa Kruba +2 more
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Complete blood count: absolute or relative values? [PDF]
, 2016 Background: For many years, relative values based on 100 quantified cells have been used to assess blood counts in the field of hematology. However, modern blood counting machines have recently made it possible to determine absolute counts.
Arneth, Borros
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IEEE AccessThe Inverse Gaussian distribution (IGD) is a probability distribution with several applications in various fields. The proposed study is prone to consider the problem of monitoring the shape parameter of IGD using the Bayesian method.
Tahir Abbas +3 more
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Control chart limits based on true process capability with consideration of measurement system error
International Journal of Metrology and Quality Engineering, 2016 Shewhart X̅ and R control charts and process capability indices, proven to be effective tools in statistical process control are widely used under the assumption that the measurement system is free from errors.
Amara Souha Ben +2 more
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