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Now showing items 21-30 of 249
Directionally sensitive homogeneously weighted moving average control charts
(
Wiley
, 2021 , Article)
One-sided control charts for monitoring changes in the mean level are proposed in this paper. The proposed charts are given in the form of a homogeneously weighted moving average technique that provides efficient monitoring ...
A Novel Simulation-Based Adaptive MEWMA Approach for Monitoring Linear and Logistic Profiles
(
IEEE
, 2021 , Article)
As a common approach in the development of control charts in Statistical Process Control (SPC), an industrial process is monitored with one or more quality characteristics using their corresponding distributions. Note ...
Robust Distribution-Free Hybrid Exponentially Weighted Moving Average Schemes Based on Simple Random Sampling and Ranked Set Sampling Techniques
(
Hindawi
, 2021 , Article)
This paper proposes new nonparametric hybrid exponentially weighted moving average (HEWMA) control charts based on simple random sampling (SRS) and ranked set sampling (RSS) techniques using the Wilcoxon rank-sum W statistic. ...
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 ...
Investigation of NH3 adsorption on noble metal modified MoSe2
(
Elsevier
, 2022 , Article)
Gas pollutants represent hazard for the quality of the ambient environment, thus, the development of sensitive and selective gas sensors is essential to monitor and maintain its decent quality. The adsorption of NH3 gas ...
Universal large-order asymptotic behavior of the strong-coupling and high-temperature series expansions
(
American Physical Society
, 2022 , Article)
For theories that exhibit second-order phase transition, we conjecture that the large-order asymptotic
behavior of the strong-coupling (high-temperature) series expansion takes the form σnnb where b is a
universal ...
An Efficient Audio Encryption Scheme Based on Finite Fields
(
IEEE
, 2021 , Article)
Finite fields are well-studied algebraic structures with enormous efficient properties which have applications in the fields of cryptology and coding theory. In this study, we proposed a lossless binary Galois field ...
High sensitivity H2S gas sensors using lead halide perovskite nanoparticles
(
Elsevier
, 2022 , Article)
We report the development of a high sensitivity H2S gas sensor based on perovskite nanoparticles, which can be synthesized using relatively simple solution-growth methods. The gas sensor was fabricated from the metal halide ...
Prediction of future failures in the log-logistic distribution based on hybrid censored data
(
Springer
, 2022 , Article)
We consider the prediction of future observations from the log-logistic distribution. The data is assumed hybrid right censored with possible left censoring. Different point predictors were derived. Specifically, we obtained ...
Characterizing the effective reproduction number during the COVID-19 pandemic: Insights from Qatar’s experience
(
International Society of Global Health
, 2022 , Article)
Background: The effective reproduction number, Rt, is a tool to track and understand epidemic dynamics. This investigation of Rt estimations was conducted to guide the national COVID-19 response in Qatar, from the onset ...