Results 31 to 40 of about 154,806 (248)
Enhanced performance of mixed HWMA-CUSUM charts using auxiliary information.
PLoS ONE, 2023 Quality control (QC) is a systematic approach to ensuring that products and services meet customer requirements. It is an essential part of manufacturing and industry, as it helps to improve product quality, customer satisfaction, and profitability ...
Faiza Zubair +2 more
doaj +1 more source
Impact of Measurement Error on Mixed EWMA-CUSUM Control Chart [PDF]
Scientia Iranica, 2020 In statistical process control, measurement error plays an important role which is usually ignored. Measurement error can lead to incorrect conclusions about the performance of the process. In this paper, we examined the effect of measurement error on the shift detection ability of the mixed exponentially weighted moving average-cummulative sum (EWMA ...
openaire +1 more source
Design of a New Tukey MA-DEWMA Control Chart to Monitor Process and its Applications
IEEE Access, 2021 Control chart is a useful statistical tool for the production process control to maintain the product value at the standard. The objectives of this research were to propose the Tukey Moving Average - Double Exponentially Weighted Moving Average control ...
Rattikarn Taboran +2 more
doaj +1 more source
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
openaire +3 more sources
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
doaj +1 more source
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
openaire +3 more sources
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
doaj +1 more source
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
doaj +1 more source
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
doaj +2 more sources
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
openaire +2 more sources