There are some situations when the process mean fluctuates from time to time but is still
considered as in-control and the process standard deviation is a linear function of the …

With the increasing use of distributed renewable energy to generate electricity, energy
storage sharing has become more promising because it is capable of smoothing renewable …

This paper aimed to develop a coefficient of variation (CV) control chart utilizing the
generalized multiple dependent state (GMDS) sampling approach for CV monitoring. We …

In the industrial practice, control charts are frequently implemented assuming that the quality
characteristic of interest can be accurately measured without errors. In general, this …

In many industrial manufacturing processes, the ratio between two normal random variables
plays a key role in ensuring quality of products. Thus, monitoring this ratio is an important …

In order to reduce the effect of autocorrelation on the X¯ monitoring scheme, a new sampling
strategy is proposed to form rational subgroup samples of size n. It requires sampling to be …

Monitoring schemes are typically designed under the assumption of perfect measurements.
However, in real-life applications, data tend to be subjected to measurement errors, that is, a …

In recent years, the simultaneous monitoring of the process mean and variability has
received increasing attention in statistical process monitoring (SPM). Most of control charts …

In many industrial manufacturing processes, the ratio of the variance to the mean of a
quantity of interest is an important characteristic to ensure the quality of the processes. This …

Monitoring the ratio between two random normal variables plays an important role in many
industrial manufacturing processes. In this paper, we suggest designing two one‐sided …