Results 121 to 130 of about 420,626 (277)

On enhanced sensitivity of nonparametric EWMA control charts for process monitoring [PDF]

, 2017
Saddam Akber Abbasi, Shabbir Ahmad, Muhammad Riaz   +2 more
openalex   +1 more source

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

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

Optimal designs of the exponentially weighted moving average (EWMA) median chart for known and estimated parameters based on median run length

, 2020
Zhi Lin Chong, Kian Lam Tan, Michael B. C. Khoo, Wei Lin Teoh, Philippe Castagliola   +4 more
openalex   +2 more sources

An Efficient Robust Nonparametric Triple EWMA Wilcoxon Signed-Rank Control Chart for Process Location [PDF]

, 2021
Zahid Rasheed, Hongying Zhang, Muhammad Arslan, Babar Zaman, Syed Masroor Anwar, Muhammad Abid, Saddam Akber Abbasi   +6 more
openalex   +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
core  

A New Nonparametric Tukey MA-EWMA Control Charts for Detecting Mean Shifts [PDF]

, 2020
Rattikarn Taboran, Saowanit Sukparungsee, Yupaporn Areepong   +2 more
openalex   +1 more source

Application of Residual-Based EWMA Control Charts for Detecting Faults in Variable-Air-Volume Air Handling Unit System

Journal of Control Science and Engineering, 2016
An online robust fault detection method is presented in this paper for VAV air handling unit and its implementation. Residual-based EWMA control chart is used to monitor the control processes of air handling unit and detect faults of air handling unit ...
Haitao Wang
doaj   +1 more source

Distribution‐free triple EWMA control chart for monitoring the process location using the Wilcoxon rank‐sum statistic with fast initial response feature

, 2021
Tokelo Irene Letshedi, Jean‐Claude Malela‐Majika, Philippe Castagliola, Sandile Charles Shongwe   +3 more
openalex   +2 more sources

Design and Application of Risk Adjusted Cumulative Sum (RACUSUM) for Online Strength Monitoring of Ready Mixed Concrete [PDF]

The Cumulative Sum (CUSUM) procedure is an effective statistical process control tool that can be used to monitor quality of ready mixed concrete (RMC) during its production process.
Dutta, Goutam, Sarkar Debasis
core