Results 81 to 90 of about 6,021 (172)

Multivariate Statistical Process Control Charts and the Problem of Interpretation: A Short Overview and Some Applications in Industry [PDF]

open access: yes
Woodall and Montgomery in a discussion paper, state that multivariate process control is one of the most rapidly developing sections of statistical process control.
Bersimis, Sotiris   +2 more
core   +1 more source

Are estimated control charts in control? [PDF]

open access: yes, 2001
Standard control chart practice assumes normality and uses estimated parameters. Because of the extreme quantiles involved, large relative errors result. Here simple corrections are derived to bring such estimated charts under control.
Albers, W., Kallenberg, W.C.M.
core   +1 more source

Estimation of Consistency of Production of the Pertussis Component of DTP Vaccine in Terms of Immunogenic Activity and Specific Safety Using Shewhart Charts

open access: yesБиопрепараты: Профилактика, диагностика, лечение, 2018
WHO experts attribute the resurgence of whooping cough to the wide use of acellular pertussis vaccines (aPs) as components of combination products. In this regard, WHO encourages countries that have not yet switched to the use of aPs to continue to use ...
I. A. Alekseeva   +2 more
doaj   +1 more source

Sequential control chart methodology [PDF]

open access: yes
A modification of the V mask sequential control chart is proposed. In this modified scheme, a parabolic section is included in the mask to provide better performance when the process undergoes a large change in the mean from goal conditions.

core   +1 more source

Effects of the two-component measurement error model on X control charts

open access: yesStatistica, 2013
The statistical properties of Shewhart control charts are known to be highly sensitive to measurement errors. The statistical model relating the measured value to the true, albeit not observable, value of a product characteristic, is usually Gaussian and
Daniela Cocchi, Michele Scagliarini
doaj   +1 more source

A general class of entropy based control charts

open access: yes, 2017
We introduce a new class of Shewhart control charts, namely the phi-chart. This new class is based on the cumulative paired phi-divergence that generalizes both the cumulative (residual) entropy and the differential entropy.
Konopik, Jens, Mangold, Benedikt
core  

Application of a Multi-Parameter-based Water Quality Index Analysis for Monitoring Fishery Industry Wastewater Treatment using Bamboo Activated Carbon – A Control Chart Approach

open access: yesBioResources
Bamboo activated carbon (BAC) was prepared and used for wastewater treatment. Its adsorption capability was investigated using control charts. The fishery industry wastewater in Jeli was sampled for 45 days.
Jeng Young Liew   +6 more
doaj  

How to Make Chance Manageable : Statistical Thinking and Cognitive Devices in Manufacturing Control [PDF]

open access: yes
The industrial enterprise is an excellent place to view a great diversity of forms of control: control of finances and accounts, controls on the material operations of fabrication, of logistics, and control of people at every level.
Denis Bayart
core  

Control Charts for Monitoring Burr Type-X Percentiles [PDF]

open access: yes
[[abstract]]When the sampling distribution of a parameter estimator is unknown, using normality asymptotically, the Shewhart-type chart may provide improper control limits.
Bader M. G.   +12 more
core   +1 more source

Shewhart means chart

open access: yes
Citation: 'Shewhart means chart' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.08127 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms ...
openaire   +1 more source

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