Results 21 to 30 of about 27,152 (260)

Modeling, dynamical analysis and numerical simulation of a new 3D cubic Lorenz-like system

open access: yesScientific Reports, 2023
Little seems to be considered about the globally exponentially asymptotical stability of parabolic type equilibria and the existence of heteroclinic orbits in the Lorenz-like system with high-order nonlinear terms.
Haijun Wang   +3 more
doaj   +1 more source

Image Encryption Using Lorenz Chaotic System

open access: yesJournal of Techniques, 2023
In the age of the Internet, a lot of images are circulated among users, and some of these images contain financial or personal information that requires confidentiality. Encryption algorithms existed for a long time, and the data used was focused on the
Daniah Abul Qahar Shakir   +3 more
doaj   +1 more source

Chaos Theory and Applications: A New Trend

open access: yesChaos Theory and Applications, 2021
This is an Editorial. It is amazing and also exciting to see a new journal Chaos Theory and Applications established recently. After chaos was coined with a precise model, the Lorenz system, more than half a century ago, there have already been many ...
Guanrong Chen
doaj  

A complete and partial integrability technique of the Lorenz system

open access: yesResults in Physics, 2018
In this paper we deal with the well-known nonlinear Lorenz system that describes the deterministic chaos phenomenon. We consider an interesting problem with time-varying phenomena in quantum optics. Then we establish from the motion equations the passage
Lazhar Bougoffa   +2 more
doaj   +1 more source

A Color Image Encryption Technique Based on Bit-Level Permutation and Alternate Logistic Maps

open access: yesJournal of Intelligent Systems, 2019
The paper presents an approach to encrypt the color images using bit-level permutation and alternate logistic map. The proposed method initially segregates the color image into red, green, and blue channels, transposes the segregated channels from the ...
Bisht Ankita   +3 more
doaj   +1 more source

Forecast improvement in Lorenz 96 system [PDF]

open access: yesNonlinear Processes in Geophysics, 2012
Contemporary numerical weather prediction schemes are based on ensemble forecasting. Ensemble members are obtained by taking different (perturbed) models started with different initial conditions.
L. Basnarkov, L. Kocarev
doaj   +1 more source

Models for the Lorenz system [PDF]

open access: yesМатематички билтен/BULLETIN MATHÉMATIQUE DE LA SOCIÉTÉ DES MATHÉMATICIENS DE LA RÉPUBLIQUE MACÉDOINE, 2018
Using the systems of difference equations from [1] and [2], as an approximation for the solutions of the Lorenz system of differential equations, we obtain two new systems of difference and differential equations as models for the Lorenz system. By computer simulations as in [3] and [4], we give examples, where locally the solutions of these new ...
Zlatanovska, Biljana, Dimovski, Donco
openaire   +2 more sources

Feedback Long Short-Term Memory: A Long Short-Term Memory-Based Framework for Multivariate Time Series Prediction in Chaotic Systems [PDF]

open access: yesControl and Optimization in Applied Mathematics
The prediction of chaotic time series is essential for understanding highly nonlinear and sensitive systems, with the Lorenz system serving as a standard benchmark due to its intricate and non-periodic dynamics.
Saeed Mirzajani, Majid Roohi
doaj   +1 more source

Weak Signal Detection Method Based on the Coupled Lorenz System and Its Application in Rolling Bearing Fault Diagnosis

open access: yesApplied Sciences, 2020
Rolling bearings are widely used in rotating machinery. Their fault feature signals are often submerged in strong noise and are difficult to identify. This paper presents a new method of bearing fault diagnosis that combines the coupled Lorenz system and
Guozheng Li, Nanlin Tan, Xiang Li
doaj   +1 more source

Non‐Monotonic Changes in the Thermal Conductivity of Conjugated Polymer Films with Increasing Levels of Chemical Doping

open access: yesAdvanced Functional Materials, EarlyView.
Thermal conductivity changes non‐monotonically as regioregular (RR) and regiorandom (RRa) P3HT films are doped with F4TCNQ as a function of the extent to which P3HT is doped: an increase in thermal conductivity is observed upon lightly doping P3HT compared to the undoped film, followed by a decrease in the heavily doped regime. ABSTRACT The performance
Reid W. Wilson   +9 more
wiley   +1 more source

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