Results 61 to 70 of about 1,881 (223)
A Literature Review on the Fuzzy Control Chart; Classifications & Analysis [PDF]
International Journal of Supply and Operations Management, 2014 Quality control plays an important role in increasing the product quality. Fuzzy control charts are more sensitive than Shewhart control chart. Hence, the correct use of fuzzy control chart leads to producing better-quality products. This area is complex
Mohammad Hossein Zavvar Sabegh +3 more
doaj +1 more source
Aperfeiçoamento e desenvolvimento de ferramentas do controle estatístico da qualidade: utilizando quartis para estimar o desvio padrão [PDF]
, 2003 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção.O objetivo deste trabalho é aperfeiçoar e desenvolver ferramentas do controle estatístico da qualidade, através da ...
Ramos, Edson Marcos Leal Soares
core
, 2018 This article explains the modified version of Shewhart control charts for monitoring the mean level of the Gamma lifetimes under the Type-I censored data.
Raza, Syed Muhammad Muslim +1 more
core +1 more source
Long‐term stability analysis of beam shape in a robotic radiosurgery system
Journal of Applied Clinical Medical Physics, Volume 26, Issue 7, July 2025.Abstract Purpose This study aimed to investigate the long‐term stability of CyberKnife beam profile parameters and assess their compliance with existing quality assurance (QA) guidelines. We evaluated beam profiles in both standard and diagonal planes over 3.5 years post‐installation to detect potential issues and ensure consistent beam quality.
Ryoichi Hinoto +4 more
wiley +1 more source
Shewhart’s Control Chart: Some Observations
, 1999 Data Analysis in Shewhart’s Control Chart, to use the original m samples n sized intensities, is the main subject of this paper. Given m × n intensities we examine three alternatives to sintetize the variability: a) arithmetic mean of m standard deviations (' S); b) root mean square of m variances (" S); c) global dispersion ("" S).
openaire +3 more sources
A Nonparametric Shewhart-Type Signed-Rank Control Chart Based on Runs
, 2007 Shewhart-type distribution-free control charts are considered for the known in-control median of a continuous process distribution based on the Wilcoxon signed-rank statistic and some runs type rules.
Eryılmaz, Serkan, Chakraborti, S.
core +1 more source
ELECTROPHORESIS, Volume 46, Issue 13-14, Page 933-953, July 2025.ABSTRACT The ICH Q14 guideline introduces a structured framework for analytical method development based on Analytical Quality by Design (AQbD) principles, aiming to ensure robust, reliable, and fit‐for‐purpose methods throughout the product lifecycle.
Ewoud van Tricht +1 more
wiley +1 more source
A Spatiotemporal Scheme for Process Control Using Image Analysis of Speckle Patterns
Quality and Reliability Engineering International, Volume 41, Issue 5, Page 1773-1788, July 2025.ABSTRACT Conventional image‐based process control schemes require distinct, detectable features (e.g., edges or textures). In the absence of such features, current methods fail or require additional preprocessing. They are also prone to false detections from random noise, dirt, or scratches on the surface.
Hamed Sabahno, Davood Khodadad
wiley +1 more source
A New Dispersion Control Chart for Handling the Neutrosophic Data
IEEE Access, 2020 The control chart based on mean deviation (MD ) is customary used as a robust alternative to the existing Shewhart control charts for observing changes in dispersion parameter of the process.
Zahid Khan +4 more
doaj +1 more source
European Journal of Soil Science, Volume 76, Issue 3, May–June 2025.ABSTRACT Sustainable soil management is recognised as a pivotal solution for addressing current and future global challenges, but existing global and national soil property maps often lack the fine‐scale resolution required for local or intra‐field assessments.
Lucas Carvalho Gomes +13 more
wiley +1 more source