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pro vyhledávání: '"PERMUTATION ENTROPY"'
Autor:
Luttfi A. Al-Haddad, Wojciech Giernacki, Ali Basem, Zeashan Hameed Khan, Alaa Abdulhady Jaber, Sinan A. Al-Haddad
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract Fault detection and isolation in unmanned aerial vehicle (UAV) propellers are critical for operational safety and efficiency. Most existing fault diagnosis techniques rely basically on traditional statistical-based methods that necessitate b
Externí odkaz:
https://doaj.org/article/d3720fb222094481b53c390e07341f3e
Publikováno v:
Jixie chuandong, Vol 48, Pp 154-161 (2024)
When a gearbox transmission system fails, the multi-scale mean permutation entropy (MMPE) of different vibration signals corresponds to the fault state to a certain extent. However, the effect of multi-scale mean permutation entropy extraction fa
Externí odkaz:
https://doaj.org/article/bd548694b1604e9083de69b65fe91fb2
Publikováno v:
Heliyon, Vol 10, Iss 18, Pp e37339- (2024)
Monitoring the building blast vibration signal is an efficient way to determine the power of blast vibration hazards. Due to the harsh measurement environment, noise is inevitably introduced into the recorded signals. This research presents a denoisi
Externí odkaz:
https://doaj.org/article/17abf50a655441eaa99bc3ebc7ba8e87
Autor:
LinLin Fan, Yixiao Li, Jia Li, Yueling Hao, Huizhi Ren, Shuwei Cao, Shuai Liu, Weijie Ding, Juanfen Wang, Lingzhen Yang
Publikováno v:
Results in Physics, Vol 63, Iss , Pp 107866- (2024)
We experimentally study the complexity of polarization components of chaotic fiber lasers by permutation entropy, skewness and kurtosis. The experimental setup for complexity analysis is composed of the chaotic fiber laser, polarization beam splitter
Externí odkaz:
https://doaj.org/article/8eb7a6c443754e64bf9d5c48c46953ae
Publikováno v:
Naučno-tehničeskij Vestnik Informacionnyh Tehnologij, Mehaniki i Optiki, Vol 24, Iss 1, Pp 156-164 (2024)
It is widely known that among sound signals generated by natural and anthropogenic phenomena, the most long-lived are waves of frequency less than 20 Hz, called infrasound. This property allows tracking at a distance by infrasound monitoring the oc
Externí odkaz:
https://doaj.org/article/6b9a8358602b490eb7ab93be927c14aa
Publikováno v:
Applied Sciences, Vol 14, Iss 17, p 7871 (2024)
Damage identification, both in terms of size and location, in bridges is important for timely maintenance and to avoid any catastrophic failure. An earlier experimental study showed that damage in a steel box girder orthotropic plate can be successfu
Externí odkaz:
https://doaj.org/article/cb013f5102a442fc87b526f5639bbc43
Akademický článek
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Publikováno v:
Journal of Hydrology: Regional Studies, Vol 53, Iss , Pp 101836- (2024)
Study Region: Huai River Basin, China Study Focus: Runoff data preprocessing and strongly correlated influencing factors are vital to predicting runoff by machine learning methods due to the impact of human activities and changing climate. To address
Externí odkaz:
https://doaj.org/article/34caf8f3799b4409ba92153fd7937fdf
Autor:
Siokis, Fotios
Publikováno v:
Journal of Economic Studies, 2023, Vol. 50, Issue 7, pp. 1570-1584.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/JES-11-2022-0569
Autor:
Benjamin S. Novak, Andrés Aragoneses
Publikováno v:
Dynamics, Vol 3, Iss 4, Pp 750-763 (2023)
Effectively identifying and characterizing the various dynamics present in complex and chaotic systems is fundamental for chaos control, chaos classification, and behavior-transition forecasting, among others. It is a complicated task that becomes in
Externí odkaz:
https://doaj.org/article/74a91ed6a7684477894d68f6eda2f878