Ordinal patterns-based methodologies for distinguishing chaos from noise in discrete time series

M Zanin, F Olivares - Communications Physics, 2021 - nature.com
One of the most important aspects of time series is their degree of stochasticity vs. chaoticity.
Since the discovery of chaotic maps, many algorithms have been proposed to discriminate …

A review of the serrated-flow phenomenon and its role in the deformation behavior of high-entropy alloys

J Brechtl, S Chen, C Lee, Y Shi, R Feng, X Xie… - Metals, 2020 - mdpi.com
High-entropy alloys (HEAs) are a novel class of alloys that have many desirable properties.
The serrated flow that occurs in high-entropy alloys during mechanical deformation is an …

Forecasting for COVID-19 has failed

JPA Ioannidis, S Cripps, MA Tanner - International journal of forecasting, 2022 - Elsevier
Epidemic forecasting has a dubious track-record, and its failures became more prominent
with COVID-19. Poor data input, wrong modeling assumptions, high sensitivity of estimates …

Consciousness is supported by near-critical slow cortical electrodynamics

D Toker, I Pappas, JD Lendner… - Proceedings of the …, 2022 - National Acad Sciences
Mounting evidence suggests that during conscious states, the electrodynamics of the cortex
are poised near a critical point or phase transition and that this near-critical behavior …

Novel image encryption scheme based on chaotic signals with finite-precision error

S Zhou, X Wang, Y Zhang - Information Sciences, 2023 - Elsevier
This paper presents a novel framework for generating new chaotic signals for image
encryption that is based on the finite precision of computers. First, we select a system from a …

A new adaptive synchronization and hyperchaos control of a biological snap oscillator

SS Sajjadi, D Baleanu, A Jajarmi, HM Pirouz - Chaos, Solitons & Fractals, 2020 - Elsevier
The purpose of this paper is to analyze and control the hyperchaotic behaviours of a
biological snap oscillator. We mainly study the chaos control and synchronization of a …

On the variable-order fractional memristor oscillator: Data security applications and synchronization using a type-2 fuzzy disturbance observer-based robust control

JF Li, H Jahanshahi, S Kacar, YM Chu… - Chaos, Solitons & …, 2021 - Elsevier
In the present paper, for the first time, we propose a variable-order hyperchaotic system for
information security. Firstly, we study the dynamical behaviors of a memristor oscillator …

Chaos is not rare in natural ecosystems

TL Rogers, BJ Johnson, SB Munch - Nature ecology & evolution, 2022 - nature.com
Chaotic dynamics are thought to be rare in natural populations but this may be due to
methodological and data limitations, rather than the inherent stability of ecosystems …

Nonlinear delay differential equations and their application to modeling biological network motifs

DS Glass, X Jin, IH Riedel-Kruse - Nature communications, 2021 - nature.com
Biological regulatory systems, such as cell signaling networks, nervous systems and
ecological webs, consist of complex dynamical interactions among many components …

Simple colour image cryptosystem with very high level of security

S Zhou, X Wang, M Wang, Y Zhang - Chaos, Solitons & Fractals, 2020 - Elsevier
To obtain a more secure colour image cryptosystem without complex construction, this paper
presents a general simple colour image encryption model with a very high level of security …