Results 11 to 20 of about 2,196 (141)
Probability‐type, Shewhart‐type and EWMA control charts for individual observations from the two‐parameter Lindley distribution [PDF]
Quality and Reliability Engineering International, 2023 AbstractLindley distribution is a continuous distribution with various applications some of which are in medicine, genetics, epidemiology, biology, finance and actuarial sciences, ecology, meteorology, sociology, demography, agriculture, hydrology, geosciences, reliability and engineering, life testing and survival analysis, airborne systems and ...
Elisavet Demertzi, Stelios Psarakis
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Gestão & Produção, 2013 O presente artigo tem como objetivo analisar e controlar estatisticamente um processo industrial, em que o gráfico do tipo Shewhart é o atualmente utilizado. A partir de uma aplicação realizada por meio da pesquisa axiomática quantitativa, são analisadas outras opções como o emprego de um gráfico CUSUM e um gráfico combinado Shewhart-CUSUM ...
Olga Maria Formigoni Carvalho Walter
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Prediction Intervals for Overdispersed Poisson Data and Their Application in Medical and Pre-Clinical Quality Control. [PDF]
Pharm StatABSTRACT In pre‐clinical and medical quality control, it is of interest to assess the stability of the process under monitoring or to validate a current observation using historical control data. Classically, this is done by the application of historical control limits (HCL) graphically displayed in control charts. In many applications, HCL are applied
Menssen M +4 more
europepmc +2 more sources
Using Shewhart charts to monitor quality characteristics of preventive vaccines for tuberculosis
Биопрепараты: Профилактика, диагностика, лечение, 2023 Scientific relevance. The quality of medicinal products, particularly vaccines, is contingent on the stability of the manufacturing process at all stages, which can be evaluated using Shewhart charts for data obtained by monitoring the quality attributes
A. A. Savina +2 more
doaj +1 more source
Construction Skewness Correction the And R Control Chart under Non –Normality
Zanco Journal of Humanity Sciences, 2022 Shewhart's charts are powerful tools in Statistical Process Control (SPC) and are widely used. Usually, Shewhart's charts are depending on the normality assumption.
Kawa M. Jamal Rashid
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The blockage ratio effect to the spray performances [PDF]
, 2022 Nozzle sprays are used in wide range of application. The used of nozzle application is depend on the spray characteristics, by which to suit the particular application.
Aripin, Muhamad Afzamiman +7 more
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International Journal of Engineering Materials and Manufacture, 2018 The response surface methodology (RSM) and Shewhart control charts have been widely used in manufacturing to reduce variation, improve quality and optimize the output.
Ahmed Maged +4 more
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A Control Chart for Gamma Distribution using Multiple Dependent State Sampling [PDF]
, 2017 In this article, a control chart based on multiple dependent (or deferred) state sampling for the gamma distributed quality characteristic is proposed using the gamma to normal transformation.
Arif, O.-H., Aslam, M., Jun, C.-H.
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A Synthetic Scaled Weighted Variance Control Chart for Monitoring the Process Mean of Skewed Populations [PDF]
, 2009 International audienceIn this paper, a synthetic scaled weighted variance Xbar (synthetic SWV-Xbar) control chart is proposed to monitor the process mean of skewed populations. A comparison between the performances of the synthetic SWV-Xbar and synthetic
Castagliola, Philippe +1 more
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The Individuals Control Chart in Case of Non-Normality [PDF]
, 2005 This article examines the effects of non-normality as measured by skewness and provides an alternative method of designing individuals control chart with non-normal distributions.
Kan, Betül, Yazici, Berna
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