Results 51 to 60 of about 15,101 (215)

Multifractality and intermittency in the solar wind [PDF]

open access: yesNonlinear Processes in Geophysics, 2007
Within the complex dynamics of the solar wind's fluctuating plasma parameters, there is a detectable, hidden order described by a chaotic strange attractor which has a multifractal structure.
W. M. Macek
doaj  

Fractal and Multifractal Properties of Electrographic Recordings of Human Brain Activity: Toward Its Use as a Signal Feature for Machine Learning in Clinical Applications

open access: yesFrontiers in Physiology, 2018
The quantification of brain dynamics is essential to its understanding. However, the brain is a system operating on multiple time scales, and characterization of dynamics across time scales remains a challenge.
Lucas G. Souza França   +8 more
doaj   +1 more source

Multifractal finite-size scaling at the Anderson transition in the unitary symmetry class

open access: yes, 2017
We use multifractal finite-size scaling to perform a high-precision numerical study of the critical properties of the Anderson localization-delocalization transition in the unitary symmetry class, considering the Anderson model including a random ...
Lindinger, Jakob, Rodríguez, Alberto
core   +1 more source

Shear behavior of bolt–grout interfaces under constant normal stiffness: Influence of grout strength and thickness

open access: yesDeep Underground Science and Engineering, EarlyView.
The effects of grout strength and thickness on the shear behavior of bolt–grout interfaces (BGI) under constant normal stiffness conditions are investigated. Shear strength, failure modes, and acoustic emission characteristics are examined. The findings reveal that grout strength exerts a significantly greater influence on BGI shear strength and ...
Sunhao Zhang   +5 more
wiley   +1 more source

Multifractal Dynamics in Executive Control When Adapting to Concurrent Motor Tasks

open access: yesFrontiers in Physiology, 2021
There is some evidence that an improved understanding of executive control in the human movement system could be gained from explorations based on scale-free, fractal analysis of cyclic motor time series. Such analyses capture non-linear fractal dynamics
Laurent M. Arsac
doaj   +1 more source

On the long-term correlations and multifractal properties of electric arc furnace time series

open access: yes, 2015
In this paper, we study long-term correlations and multifractal properties elaborated from time series of three-phase current signals coming from an industrial electric arc furnace plant.
Livi, Lorenzo   +3 more
core   +1 more source

The role of cardiac acoustic biomarkers in monitoring patients with heart failure: A systematic literature review

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 980-997, April 2025.
Abstract Heart failure (HF) creates a considerable clinical, humanistic and economic burden on patients and caregivers as well as on healthcare systems. To attenuate the significant burden of HF, there is a need for enhanced management of patients with HF.
Javed Butler   +8 more
wiley   +1 more source

Nonlinear and multifractal behaviour of atmospheric parameters and particulate matter in South Africa

open access: yesDiscover Geoscience
This study investigates the nonlinear and multifractal behavior of atmospheric parameters and particulate matter (PM10) in South Africa. We employed nonlinear techniques such as Sample Entropy, Lyapunov Exponent, and Correlation Dimension, alongside ...
Samuel Ogunjo   +3 more
doaj   +1 more source

Multi-Signal Multifractal Detrended Fluctuation Analysis for Uncertain Systems —Application to the Energy Consumption of Software Programs in Microcontrollers

open access: yesFractal and Fractional, 2023
Uncertain systems are those wherein some variability is observed, meaning that different observations of the system will produce different measurements. Studying such systems demands the use of statistical methods over multiple measurements, which allows
Juan Carlos de la Torre   +4 more
doaj   +1 more source

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