Results 21 to 30 of about 143,917 (257)
Heliyon, 2022 The products are commonly measured by two types of quality characteristics. The variable characteristics measure the numerical scale. Meanwhile, the attribute characteristics measure the categorical data.
Muhammad Ahsan +3 more
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A Bayesian Control Chart for Monitoring Process Variance
Applied Sciences, 2021 Automation in the service industry is emerging as a new wave of industrial revolution. Standardization and consistency of service quality is an important part of the automation process.
Chien-Hua Lin +3 more
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The performance of the truncated mixed control chart
Communications in Statistics - Theory and Methods, 2018 When the mixed chart proposed by Aslam et al. (2015) is in use, the sample items are classified as defective or not defective and, depending on the number of defectives, the quality characteristic ...
Roberto Campos Leoni +1 more
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Monitoring of Linear Profiles Using Linear Mixed Model in the Presence of Measurement Errors
Mathematics, 2022 In the application of control charts, most of the research in profile monitoring is based on accurate measurements. Measurement errors, however, often exist in many manufacturing and service environments.
Wenhui Liu, Zhonghua Li, Zhaojun Wang
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Crude versus case-mix-adjusted control charts for safety monitoring in thyroid surgery [PDF]
BMJ Quality & Safety, 2010 Patient-safety monitoring based on health-outcome indicators can lead to misinterpretation of changes in case mix. This study aimed to compare the detection of indicator variations between crude and case-mix-adjusted control charts using data from thyroid surgeries.The study population included each patient who underwent thyroid surgery in a teaching ...
Antoine, Duclos +7 more
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TheT2chart with mixed samples to control bivariate autocorrelated processes [PDF]
International Journal of Production Research, 2015 In this paper, we propose the use of the T2 chart with the mixed sampling strategy (MS) to monitor the mean vector of bivariate processes with observations that fit to a first-order vector autoregressive model. With the MS, rational subgroups of size n are taken from the process and the selected units are regrouped to form the mixed samples.
Leoni, Roberto Campos +2 more
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Control Chart T2Qv for Statistical Control of Multivariate Processes with Qualitative Variables
Mathematics, 2023 The scientific literature is abundant regarding control charts in multivariate environments for numerical and mixed data; however, there are few publications for qualitative data. Qualitative variables provide valuable information on processes in various
Wilson Rojas-Preciado +3 more
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Rwanda Medical Journal, 2022 BACKGROUND: A perioperative acute pain care program integrating standardized assessment and treatment forms into pain care was developed and implemented at an urban hospital in Rwanda through a collaboration between Rwandan and Canadian experts.
J. Baumhour +6 more
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An EWMA-DiD Control Chart to Capture Small Shifts in the Process Average Using Auxiliary Information
Technologies, 2018 Among the Statistical Process Control (SPC) techniques, control charts are considered to be high weight-age due to their effectiveness in process variation.
Muhammad Anwar Mughal +2 more
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An Efficient Mixed-Memory-Type Control Chart for Normal and Non-Normal Processes [PDF]
Scientia Iranica, 2019 Statistical process control techniques are commonly used to monitor process performance. Control charting technique is the most sophisticated tool of SPC and is categorized as memory-less and memory-type control charts. Shewhart-type control charts have low efficiency in detecting the small changes in the process parameters and named as memory-less ...
Hafiz Nazir +4 more
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