Results 21 to 30 of about 8,668 (249)

Investigation of chaos in a polydyne cam with flat-faced follower mechanism

open access: yesJournal of King Saud University: Engineering Sciences, 2021
In this paper, the chaotic analysis is predicted based on the non-periodic motion of the follower. Non-periodic motion of the follower has been investigated by using the conception of Lyapunov exponent parameter.
Louay S. Yousuf
doaj   +1 more source

The problem of the inverse Lyapunov exponent and its applications

open access: yesNonlinear Analysis, 2018
The problem of the inverse Lyapunov exponent was formulated and solved, involving to find such chaotic transformation for which the value of the Lyapunov exponent is given in advance.
Marcin Lawnik
doaj   +1 more source

The asymptotic behavior of a dynamical process coming from the development in continuous fractions [PDF]

open access: yesITM Web of Conferences, 2020
The aim of this paper is the study of a dynamical process generated by a sequence of maps: xn+1=fnxn$${x_{n + 1}} = {f_n}\left( {{x_n}} \right)$$ where fn : 0,∞ →0,∞,  fn x = cn1+x for all n ∈ N and cnn$${f_n}{\rm{ : }}\left( {0,\infty } \right){\rm{ }} \
Bucur Maria-Liliana   +1 more
doaj   +1 more source

Chaotic time series analysis of meteorological parameters in some selected stations in Nigeria

open access: yesScientific African, 2020
One of the primary responsibilities of any meteorological and hydrological services is to provide information on weather warnings and forecasts to the general public for necessary precaution and prevention. This necessitated a better understanding of the
A.T. Adewole   +3 more
doaj   +1 more source

Gottwald Melborune (0–1) test for chaos in a plasma [PDF]

open access: yesNonlinear Processes in Geophysics, 2012
Plasma is a highly complex system exhibiting a rich variety of nonlinear dynamical phenomena. In the last two decades or so there has been a spurt of growth in exploring unconventional nonlinear dynamical methods of analysis, like chaos theory, multi ...
D. R. Chowdhury   +2 more
doaj   +1 more source

Lyapunov Exponent-Based Study of Chaotic Mechanical Behavior of Concrete under Compression

open access: yesAdvances in Civil Engineering, 2019
Chaos theory is advantageous in achieving a deeper understanding of the nonlinearity and randomness of concrete behavior. In this study, the experimental data of concrete under compression were examined and discussed using Lyapunov exponent. According to
Yuhu Quan, Xu Yang
doaj   +1 more source

The Cardiodynamicsgram Based Early Detection of Myocardial Ischemia Using the Lempel-Ziv Complexity

open access: yesIEEE Access, 2020
Background: Electrocardiogram (ECG) is a routine method for detecting myocardial ischemia in clinical practice, but more than half of ECGs are without specific ischemic changes.
Qinghua Sun   +5 more
doaj   +1 more source

On Gait Stability: Correlations between Lyapunov Exponent and Stride Time Variability

open access: yesCurrent Directions in Biomedical Engineering, 2022
Lyapunov exponent is a promising parameter to ascertain the stability of the human gait. In this work, we use a time-series model based on a second-order delay-system with inertial measurement units placed on the foot and wrist.
Chandrasekaran Sanjay   +5 more
doaj   +1 more source

Probing phase transitions of regular black holes in anti-de Sitter space with Lyapunov exponent

open access: yesEuropean Physical Journal C: Particles and Fields
We investigate the relationship between thermodynamic phase transitions and the Lyapunov exponent of charged regular anti-de Sitter black holes in quasi-topological gravity. Our results show that the Lyapunov exponent displays multivalued behavior during
Hao Xie, Si-Jiang Yang
doaj   +1 more source

Probing thermodynamic phase transitions of 4D R-charged black holes via lyapunov exponent

open access: yesNuclear Physics B
We investigate the thermodynamic phase structure of four-dimensional R-charged black holes–characterized by four independent U(1) charges–through the lens of Lyapunov exponents associated with unstable circular orbits of both massless and massive ...
Mozib Bin Awal, Prabwal Phukon
doaj   +1 more source

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