Results 81 to 90 of about 4,359,077 (237)
An affine invariant signed-rank multivariate exponentially weighted moving average control chart for process location monitoring [PDF]
, 2013 Multivariate statistical process control (SPC) charts for detecting possible shifts in mean vectors assume that data observation vectors follow a multivariate normal distribution. This assumption is ideal and seldom met.
Zeinab, Jamil H.
core +1 more source
Average Run Length of Double Modified Exponentially Weighted Moving Average Control Chart by Numerical Integral Equation [PDF]
Through the use of Numerical Integral Equation (NIE) techniques—specifically, the Gaussian, Midpoint, Trapezoidal, and Simpson's rules—and the Double Modified Exponentially Weighted Moving Average (DMEWMA) control chart, this study aims to investigate ...
Areepong, Yupaporn +2 more
core +1 more source
A New Generalized Range Control Chart for the Weibull Distribution
Complexity, 2018 In this study, a generalized range control chart is designed for the Weibull distribution using generally weighted moving average statistics. The proposed chart is based on minimum generally weighted moving average statistic and maximum generally ...
Osama H. Arif, Muhammad Aslam
doaj +1 more source
Two Coexisting Pathways to Volatility in Valence‐Change Memory Devices
Advanced Functional Materials, EarlyView.Volatile VCM‐type memristive devices exhibit current relaxation after resistive switching, but their microscopic origin remains debated. Using pulsed measurements and a new Tunnel‐DLTS approach on Pt/SrTiO3/Nb:SrTiO3 devices, we show that post‐SET volatility is predominantly ionic, while electronic contributions—arising from quasi‐Fermi‐level ...
Johannes Hellwig +3 more
wiley +1 more source
IEEE Access, 2019 Due to high fuel consumption, we face the problem of not only the increased cost, but it also affects greenhouse gas emission. This paper presents an assorted approach for monitoring fuel consumption in trucks with the objective to minimize fuel ...
Usman Saeed +3 more
doaj +1 more source
On designing a sequential based EWMA structure for efficient process monitoring
Journal of Taibah University for Science, 2020 Control chart is a popular technique that is widely used in statistical process control to identify any possible deviations from a stable state of a process. Shewhart charts are famous for identifying larger shifts, while cumulative sum and exponentially
Saddam Akber Abbasi +3 more
doaj +1 more source
EWMA Chart and Measurement Error [PDF]
Measurement error is a usually met distortion factor in real-world applications that influences the outcome of a process. In this paper, we examine the effect of measurement error on the ability of the EWMA control chart to detect out-of-control ...
Panaretos, John +2 more
core
An Edible Chitosan‐Based Acoustic Sensor for Sound‐Responsive Actuation in Edible Robots
Advanced Functional Materials, EarlyView.This study introduces an edible acoustic sensor for robotic food and edible robotics. Built from a chitosan piezoelectric film between gold electrodes, the sensor enables acoustic communication through ON/OFF keying. Integrated into an edible robot with pneumatically actuated arms and neck, it responds to high‐frequency tones.
Valerio Francesco Annese +8 more
wiley +1 more source
An Examination of the Robustness to Non Normality of the EWMA Control Charts for the Dispersion [PDF]
The EWMA control chart is used to detect small shifts in a process. It has been shown that, for certain values of the smoothing parameter, the EWMA chart for the mean is robust to non normality.
Panaretos, John +2 more
core
On Designing Mixed EWMA Dual-CUSUM Chart With Applications in Petro-Chemical Industry
IEEE Access, 2018 In recent times, the trending modification of control chart is a result of its effective application in various aspects of life. In this paper, we propose a new charting scheme called mixed exponentially weighted moving average (EWMA) dual-cumulative sum
Nasir Abbas +3 more
doaj +1 more source