Results 61 to 70 of about 5,815 (232)

EWMA control chart using Bayesian approach under paired ranked set sampling schemes: An application to reliability engineering

AIMS Mathematics, 2023
Control charts are widely used to efficiently detect small to moderate shifts and they include exponentially moving average control charts, named memory type control charts.
Imad Khan, Muhammad Noor-ul-Amin, Narjes Turki Khalifa, Asma Arshad   +3 more
doaj   +1 more source

Intervention in Healthcare Teams to Promote Adherence to the Integration of Care for People at Risk of Pressure Injuries Between Hospitals and Communities: A Scoping Review

International Wound Journal, Volume 22, Issue 9, September 2025.
ABSTRACT Pressure injuries (PIs) remain a problem for patient safety and the sustainability of healthcare systems. Difficulties persist in their assessment, prevention and monitoring by multidisciplinary teams. International recommendations point to this problem as a priority area for resolution in terms of patient safety.
Daniela Amêndoa, Lara Gugg, Carolina Gomes, Catarina Diniz, Óscar Ferreira, Cristina Lavareda Baixinho   +5 more
wiley   +1 more source

The Application of Six Sigma to Assess the Analytical Performance of Plasma Proteins and Design a Risk‐Based Statistical Quality Control Strategy: A Multicenter Study

Journal of Clinical Laboratory Analysis, Volume 39, Issue 16, August 2025.
The six sigma model can objectively assess the analytical performance of plasma proteins. Different control concentrations yield different sigma values, which are visually displayed through standardized sigma performance verification charts. The six sigma model enables the development of personalized quality control strategies for each assay.
Ming Hu, Jiaping Wang, Huan Yang, Sugang Zang, Tingting Gao, Jian Zeng, Fumeng Yang   +6 more
wiley   +1 more source

MAXIMUM EXPONENTIALLY WEIGHTED MOVING AVERAGE WITH MEASUREMENT ERROR (USING COVARIATE METHOD) USING AUXILIARY INFORMATION FOR CEMENT QUALITY CONTROL

Barekeng
The main quality characteristic at XYZ Inc. that should be observed is Compressive Strength. Cement production quality control is carried out on the average and process variability jointly with the Max-EWMA control chart.
Eirene Christina Sellyra, Muhammad Ahsan, Wibawati Wibawati   +2 more
doaj   +1 more source

Dispersion chart for some popular distributions under repetitive sampling

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2016
A control chart is an important tool of the statistical process control for monitoring deviations from a stable production process. For this purpose different control schemes have been developed for the fast detection of certain changes in the process ...
Liaquat AHMAD, Muhammad ASLAM, Arif, O.H, Chi-Hyuck JUN   +3 more
doaj   +1 more source

Analytical and numerical solutions of average run length integral equations for an EWMA control chart over a long memory SARFIMA process [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2018
The efficiency of a process, especially a long memory seasonal autoregressive fractional integral moving average (SARFIMA) process, has commonly been measured through the quality control chart.
Rapin Sunthornwat, Yupaporn Areepong, Saowanit Sukparungsee   +2 more
doaj   +1 more source

An Exact Formula for the Average Run Length to False Alarm of the Generalized Shiryaev-Roberts Procedure for Change-Point Detection under Exponential Observations

, 2014
We derive analytically an exact closed-form formula for the standard minimax Average Run Length (ARL) to false alarm delivered by the Generalized Shiryaev-Roberts (GSR) change-point detection procedure devised to detect a shift in the baseline mean of a ...
A Novikov, A Tartakovsky, AG Tartakovsky, AG Tartakovsky, AG Tartakovsky, AG Tartakovsky, AG Tartakovsky, AN Shiryaev, AN Shiryaev, AN Shiryaev, AS Polunchenko, AS Polunchenko, AS Polunchenko, AS Polunchenko, AS Polunchenko, AS Polunchenko, B Yakir, ES Page, FF Gan, FF Gan, G Lorden, GV Moustakides, HV Poor, J DeLucia, M Pollak, M Pollak, M Pollak, M Pollak, M Woodroofe, R Kenett, R Kenett, S Knoth, S Vardeman, SW Roberts, SW Roberts, VV Veeravalli, Y Mei, Y Mevorach   +37 more
core   +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

Efficient Computer Network Anomaly Detection by Changepoint Detection Methods

, 2012
We consider the problem of efficient on-line anomaly detection in computer network traffic. The problem is approached statistically, as that of sequential (quickest) changepoint detection.
Polunchenko, Aleksey S., Sokolov, Grigory, Tartakovsky, Alexander G.   +2 more
core   +1 more source

Statistical fault detection in photovoltaic systems [PDF]

, 2017
Faults in photovoltaic (PV) systems, which can result in energy loss, system shutdown or even serious safety breaches, are often difficult to avoid. Fault detection in such systems is imperative to improve their reliability, productivity, safety and ...
Chouder, Aissa, Garoudja, Elyes, Harrou, Fouzi, Kara, Kamel, Silvestre Bergés, Santiago, Sun, Ying   +5 more
core   +2 more sources