Results 81 to 90 of about 4,537 (202)

A Nonparametric Multivariate Control Chart Based on Data Depth [PDF]

open access: yes
For the design of most multivariate control charts, it is assumed that the observations follow a multivariate normal distribution. In practice, this assumption is rarely satisfied.
Hering, Franz   +2 more
core  

Designing an efficient adaptive EWMA model for normal process with engineering applications

open access: yesAin Shams Engineering Journal
Stability in process parameters is required to ensure the quality of the finished item. Control charts, as one of the critical parts of statistical process monitoring (SPM), have seen widespread use across many disciplines for detecting and responding to
Zahid Rasheed   +5 more
doaj   +1 more source

A Fuzzy EWMA Attribute Control Chart to Monitor Process Mean

open access: yesInformation, 2018
Conventional control charts are one of the most important techniques in statistical process control which are used to assess the performance of processes to see whether they are in- or out-of-control.
Muhammad Zahir Khan   +4 more
doaj   +1 more source

Control charts for monitoring the mean of AR(1) data [PDF]

open access: yes
New product development is one of the most powerful but difficult activities in business. It is also a very important factor affecting final product quality. There are many techniques available for new product development.
Wieringa, J.E.
core   +1 more source

A Photovoltaic Fault Diagnosis Method Integrating Photovoltaic Power Prediction and EWMA Control Chart

open access: yesEnergies
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   +4 more
doaj   +1 more source

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

open access: yesJournal 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

An application of control charts in manufacturing industry [PDF]

open access: yes, 2012
The range control chart and the X bar control chart are the well known and the most popular tools for detecting out- of-control signals in the Statistical Quality Control (SQC). The control charts has shown his worth in the manufacturing industry.
Muhammad, Faqir, Riaz, Muhammad
core  

A nonparametric mixed exponentially weighted moving average-moving average control chart with an application to gas turbines.

open access: yesPLoS ONE
This study aims to develop a nonparametric mixed exponentially weighted moving average-moving average (NPEWMA-MA) sign control chart for monitoring shifts in process location, particularly when the distribution of a critical quality characteristic is ...
Muhammad Ali Raza   +5 more
doaj   +1 more source

On detecting jumps in time series: Nonparametric setting [PDF]

open access: yes
Motivated by applications in statistical quality control and signal analysis, we propose a sequential detection procedure which is designed to detect structural changes, in particular jumps, immediately.
Pawlak, Mirek   +2 more
core  

Multivariate Statistical Process Control Charts and the Problem of Interpretation: A Short Overview and Some Applications in Industry [PDF]

open access: yes
Woodall and Montgomery in a discussion paper, state that multivariate process control is one of the most rapidly developing sections of statistical process control.
Bersimis, Sotiris   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy