Results 31 to 40 of about 2,935,625 (305)

An Efficient Chaos-Based Image Encryption Technique Using Bitplane Decay and Genetic Operators

open access: yesSensors, 2022
Social networks have greatly expanded in the last ten years the need for sharing multimedia data. However, on open networks such as the Internet, where security is frequently compromised, it is simple for eavesdroppers to approach the actual contents ...
Ramesh Premkumar   +2 more
doaj   +1 more source

Energy and the Macrodynamics of Agrarian Societies

open access: yesLand, 2023
For the present work, we utilized Leslie White’s anthropological theory of cultural evolutionism as a theoretical benchmark for econometrically assessing the macrodynamics of energy use in agrarian societies that constituted the human civilization’s ...
Georgios Karakatsanis, Nikos Mamassis
doaj   +1 more source

A Maximum Entropy-Based Chaotic Time-Variant Fragile Watermarking Scheme for Image Tampering Detection

open access: yesEntropy, 2013
The fragile watermarking technique is used to protect intellectual property rights while also providing security and rigorous protection. In order to protect the copyright of the creators, it can be implanted in some representative text or totem. Because
Guo-Jheng Yang   +2 more
doaj   +1 more source

Stability and Fractal Patterns of Complex Logistic Map

open access: yesCybernetics and Information Technologies, 2014
The intent of this paper is to study the fractal patterns of one dimensional complex logistic map by finding the optimum values of the control parameter using Ishikawa iterative scheme.
Prasad Bhagwati, Katiyar Kuldip
doaj   +1 more source

Cycles of the Logistic Map

open access: yesInternational Journal of Bifurcation and Chaos, 2014
The onset and bifurcation points of n-cycles of several polynomial maps are located through a characteristic equation connecting cyclic polynomials of the cycle points. The polynomials satisfied by the parameters of the logistic, Hénon, and cubic maps at the onset and bifurcation points are obtained for n up to 14, 9, and 9, respectively.
openaire   +3 more sources

Security Improve in ZigBee Protocol Based on RSA Public Algorithm in WSN [PDF]

open access: yesEngineering and Technology Journal, 2019
ZigBee is consuming low energy and providing the protection in Wireless Sensor Networks. ZigBee pro is supporting most applications. In spite of improved the security, ZigBee pro weak in key administration. In this paper, we depend on Logistic Map Diffie
Nabaa Hasan, Alaa Farhan
doaj   +1 more source

Chaos of Exponential Logistic Map

open access: yesDiscrete Dynamics in Nature and Society
In this paper, chaos of a new exponential logistic map modulated by Gaussian function is investigated. Firstly, the stability of the fixed point is analyzed, and the occurrence of period doubling bifurcation in the system is verified theoretically ...
Li Zhang, Wenhui Yu, Shilong Gao
doaj   +1 more source

The dynamics of coupled logistic maps

open access: yesNetworks and Heterogeneous Media, 2022
<abstract><p>This paper considers a coupled system given by two logistic maps with the same parameter. We studied the existence and stability of fixed points outside the diagonal and estimated the regions where the synchronization to the diagonal, both chaotic and regular, is possible.
openaire   +1 more source

Delayed coupling of logistic maps [PDF]

open access: yesPhysical Review E, 2001
We study the synchronization of logistic maps in a one-way coupling configuration. The master system is coupled to the slave system with a delay n(1), and the slave is a delayed logistic map with a delay n(2). We show that when the slave system has no delay (n(2)=0), perfectly synchronized solutions exist for strong enough coupling.
Masoller Alonso, Cristina   +2 more
openaire   +4 more sources

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo   +5 more
wiley   +1 more source

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