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Exponentially weighted moving average control charts for monitoring coefficient of variation under ranked set-sampling schemes
(
Taylor and Francis
, 2021 , Article)
Several coefficients of variation (CV) control charts under simple random schemes (SRS) have been proposed to monitor process relative variability. However, little attention has been given to investigating the performance ...
Efficient homogeneously weighted dispersion control charts with an application to distillation process
(
Wiley
, 2021 , Article)
Monitoring disturbances in process dispersion using control chart is mostly based on the assumption that the quality characteristic follows normal distribution, which is not the case in many real-life situations. This paper ...
Efficient monitoring of coefficient of variation with an application to chemical reactor process
(
John Wiley and Sons Ltd
, 2021 , Article)
Control chart is a useful tool to monitor the performance of the industrial or production processes. Control charts are mostly adopted to detect unfavorable variations in process location (mean) and dispersion (standard ...
The use of fast initial response features on the homogeneously weighted moving average chart with estimated parameters under the effect of measurement errors
(
John Wiley and Sons Ltd
, 2021 , Article)
Fast initial response (FIR) features are generally used to improve the sensitivity of memory-type control charts by shrinking time-varying control limits in the earlier stage of the monitoring regime. This paper incorporates ...
A non-parametric double homogeneously weighted moving average control chart under sign statistic
(
John Wiley and Sons Ltd
, 2021 , Article)
In practical situations, the underlying process distribution sometimes deviates from normality and their distribution is partially or completely unknown. In that instance, rather than staying with/depending on the conventional ...
Efficient bivariate EWMA charts for monitoring process dispersion
(
John Wiley and Sons Ltd
, 2020 , Article)
To ensure high quality standards of a process, the application of control charts to monitor process performance has become a regular routine. Multivariate charts are a preferred choice in the presence of more than one ...
On designing an assorted control charting approach to monitor process dispersion: an application to hard-bake process
(
Taylor and Francis Ltd.
, 2020 , Article)
The monitoring of process variability is an important feature to get optimal output from a process. Control charts are vital tools used for efficient process monitoring. The commonly used types of charts include Shewhart, ...
Efficient control charts for monitoring process CV using auxiliary information
(
Institute of Electrical and Electronics Engineers Inc.
, 2020 , Article)
Coefficient of variation (CV) control charts are a suitable choice for the monitoring of variation in cases when the process standard deviation is proportional to the process mean. This study is aimed at enhancing the ...
On designing efficient memory-type charts using multiple auxiliary-information
(
Taylor and Francis Ltd.
, 2023 , Article)
This article intends to investigate new progressive mean (MEP) charts using a single auxiliary characteristic (AMEP) and two auxiliary characteristics (TAMEP) to trace small shifts in the process mean effectively. The ...
On the performance of coefficient of variation control charts in Phase I
(
John Wiley and Sons Ltd
, 2018 , Article)
Control charts are mainly carried out in 2 interconnected phases: Phase I (retrospective phase) and Phase II (monitoring phase). Phase I uses a stable historical sample to establish control limits that will be used later ...