Results 21 to 30 of about 150,677 (317)

Chaotic explosions [PDF]

open access: yesEPL (Europhysics Letters), 2015
We investigate chaotic dynamical systems for which the intensity of trajectories might grow unlimited in time. We show that (i) the intensity grows exponentially in time and is distributed spatially according to a fractal measure with an information dimension smaller than that of the phase space,(ii) such exploding cases can be described by an operator
Altmann, E., Portela, J., Tel, T.
openaire   +3 more sources

Discrete-time synchronization of chaotic systems for secure communication [PDF]

open access: yes, 2012
This paper deals with the problem of designing an exact nonlinear reconstructor for discrete-time chaotic encrypted messages. More precisely, we investigate the problem of designing a discrete-time dead-beat observer for nonlinear systems with unknown ...
Belmouhoub, Inaâm   +7 more
core   +1 more source

Cryptographic Grade Chaotic Random Number Generator Based on Tent-Map

open access: yesJournal of Sensor and Actuator Networks, 2023
In recent years, there has been an increasing interest in employing chaotic-based random number generators for cryptographic purposes. However, many of these generators produce sequences that lack the necessary strength for cryptographic systems, such as
Ahmad Al-Daraiseh   +5 more
doaj   +1 more source

Are there chaotic tilings? [PDF]

open access: yesCommunications in Mathematical Physics, 1993
The existence of substitutions with a non-empty continuous spectrum, or even without discrete spectrum at all, has been somehow a surprise for physicists after they began using substitutions, inspired by the Fibonacci sequence, in relation with quasicrystals. The paper under review will, I guess, be also suprising: the authors explore a more subtle use
Berend, Daniel, Radin, Charles
openaire   +2 more sources

Abrupt bifurcations in chaotic scattering : view from the anti-integrable limit [PDF]

open access: yes, 2013
Bleher, Ott and Grebogi found numerically an interesting chaotic phenomenon in 1989 for the scattering of a particle in a plane from a potential field with several peaks of equal height.
Chen, Yi-Chiuan   +2 more
core   +1 more source

Random Matrix Theory Analysis of a Temperature-Related Transformation in Statistics of Fano–Feshbach Resonances in Thulium Atoms

open access: yesEntropy, 2020
Recently, the transformation from random to chaotic behavior in the statistics of Fano–Feshbach resonances was observed in thulium atoms with rising ensemble temperature.
Emil T. Davletov   +4 more
doaj   +1 more source

Optimum Design of Damping Controllers Using Modified Sperm Swarm Optimization

open access: yesIEEE Access, 2021
This paper is proposed a modified sperm swarm optimization algorithm (MSSO) for numerical function optimization and optimal design of damping controller in power system.
Mahdiyeh Eslami   +4 more
doaj   +1 more source

Chaotic Harris Hawks Optimization with Quasi-Reflection-Based Learning: An Application to Enhance CNN Design

open access: yesSensors, 2021
The research presented in this manuscript proposes a novel Harris Hawks optimization algorithm with practical application for evolving convolutional neural network architecture to classify various grades of brain tumor using magnetic resonance imaging ...
Jameer Basha   +6 more
doaj   +1 more source

A Clustering Approach by SSPCO Optimization Algorithm Based on Chaotic Initial Population [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2016
Assigning a set of objects to groups such that objects in one group or cluster are more similar to each other than the other clusters’ objects is the main task of clustering analysis.
R. Omidvar, H. Parvin, A. Eskandari
doaj   +1 more source

Dynamic seed rotation growth of two-dimensional perovskite single crystals for high-performance x-ray detect

open access: yesNext Materials
Two-dimensional organic-inorganic hybrid perovskite materials are considered to have great potential for radiation detection due to their outstanding operational stability and excellent optoelectronic properties.
Cuiling Fang   +9 more
doaj   +1 more source

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