Results 91 to 100 of about 4,823 (188)

An application of control charts in manufacturing industry [PDF]

, 2012
The range control chart and the X bar control chart are the well known and the most popular tools for detecting out- of-control signals in the Statistical Quality Control (SQC). The control charts has shown his worth in the manufacturing industry.
Muhammad, Faqir, Riaz, Muhammad
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Memory type Max-EWMA control chart for the Weibull process under the Bayesian theory

Scientific Reports
The simultaneous monitoring of both process mean and dispersion, particularly in normal processes, has garnered significant attention within the field.
Muhammad Noor-ul-Amin, Imad Khan, Javed Iqbal, Zahid Rasheed, Emad A. A. Ismail, Bakhtyar Ahmad   +5 more
doaj   +1 more source

Multivariate Statistical Process Control Charts: An Overview [PDF]

In this paper we discuss the basic procedures for the implementation of multivariate statistical process control via control charting. Furthermore, we review multivariate extensions for all kinds of univariate control charts, such as multivariate ...
Bersimis, Sotiris, Panaretos, John, Psarakis, Stelios   +2 more
core   +1 more source

Enhancing Risk-Adjusted EWMA Control Chart Utilizing Artificial Neural Networks

Journal of Statistical Theory and Applications (JSTA)
This study focuses on implementing a quality framework to improve patient quality and safety in healthcare. Evaluating the performance of healthcare services, especially under different patient health conditions poses significant challenges.
Abdullah Ali H. Ahmadini, Imad Khan, Hadeel AlQadi, Saddam Hussain   +3 more
doaj   +1 more source

Hybrid exponentially weighted moving average control chart for mean by using different ranked set sampling schemes

Kuwait Journal of Science, 2020
In this paper different schemes of ranked set sampling (RSS) are used to design a new hybrid exponentially weighted moving average (HEWMA) control chart having more sensitivity to small and moderate shifts.The  suggested control chart  dominates ...
Muhammad Noor ul amin, Navara Shabbir, Nasrullah Khan, Afshan Riaz   +3 more
doaj  

Monitoring of the BTA Deep Hole Drilling Process Using Residual Control Charts [PDF]

Deep hole drilling methods are used for producing holes with a high lengthto- diameter ratio, good surface finish and straightness. The process is subject to dynamic disturbances usually classified as either chatter vibration or spiralling. In this work,
Hering, Franz, Messaoud, Amor, Theis, Winfried, Weihs, Claus   +3 more
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Adaptive EWMA Control Charts with a Time Varying Smoothing Parameter [PDF]

, 2015
It is known that time-weighted charts like EWMA or CUSUM are designed to be optimal to detect a specific shift. If they are designed to detect, for instance, a very small shift, they can be inefficient to detect moderate or large shifts.
Sánchez, Ismael, Ugaz Sánchez, Willy Ericson   +1 more
core   +1 more source

Application and Use of Multivariate Control Charts In a BTA Deep Hole Drilling Process [PDF]

Deep hole drilling methods are used for producing holes with a high length-to-diameter ratio, good surface finish and straightness. The process is subject to dynamic disturbances usually classified as either chatter vibration or spiralling. In this paper,
Hering, Franz, Messaoud, Amor, Theis, Winfried, Weihs, Claus   +3 more
core  

A Photovoltaic Fault Diagnosis Method Integrating Photovoltaic Power Prediction and EWMA Control Chart

Energies
The inevitability of faults arises due to prolonged exposure of photovoltaic (PV) power plants to intricate environmental conditions. Therefore, fault diagnosis of PV power plants is crucial to ensure the continuity and reliability of power generation ...
Jun Su, Zhiyuan Zeng, Chaolong Tang, Zhiquan Liu, Tianyou Li   +4 more
doaj   +1 more source

Analytical and numerical methods for detection of a change in distributions [PDF]

, 2008
University of Technology, Sydney. Faculty of Science.This thesis aims to derive analytical approximations and numerical algorithms for analysis and design of control charts used for detection of changes in distributions.
Sukparungsee, S
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