Results 51 to 60 of about 322,733 (287)

Image encryption based on 3D Cubic-Sine Logistic Coupled Map and Improved Chirikov Map

open access: yesFranklin Open
This paper presents a novel color image encryption algorithm that utilizes chaotic map to enhance security in digital image transmission. In this study, we introduce a novel 3D Cubic-Sine Logistic Coupled Map, distinguished by its enhanced chaotic ...
Sanjay Kumar, Deepmala Sharma
doaj   +1 more source

Quadratic Function Chaotic System and its Application on Digital Image Encryption

open access: yesIEEE Access, 2020
To obtain chaotic systems with good properties to help chaos based image encryption, this paper first study the condition under which quadratic functions can be used as pseudo-random sequence generator.
Hongfeng Guo   +4 more
doaj   +1 more source

Nonextensivity at the edge of chaos of a new universality class of one-dimensional unimodal dissipative maps

open access: yes, 2009
We introduce a new universality class of one-dimensional unimodal dissipative maps. The new family, from now on referred to as the ($z_1,z_2$)-{\it logarithmic map}, corresponds to a generalization of the $z$-logistic map.
Ruiz, Guiomar, Tsallis, Constantino
core   +2 more sources

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

open access: yesFEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point   +7 more
wiley   +1 more source

الديناميكية المعقدة لعائلة من الدوال المعقدة التكعيبية

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics
0,x∈R}في هذا العمل، ندرس الديناميكيات المعقدة لهذه العائلة أيL= {L_λ (z)=λz^2 (1-z):λ >0,z∈C}أي أننا ندرس مجموعات فاتو وجوليا لهذه الخرائط. في الواقع، نقدم وصفًا كاملاً لهذه المجموعات يمكن لهذين النوعين الجديدين من الخرائط اللوجستية معالجة بعض مشاكل ...
Baraa Salim Ahmed   +1 more
doaj   +1 more source

Critical Lattice Size Limit for Synchronized Chaotic State in 1-D and 2-D Diffusively Coupled Map Lattices

open access: yes, 2007
We consider diffusively coupled map lattices with $P$ neighbors (where $P$ is arbitrary) and study the stability of synchronized state. We show that there exists a critical lattice size beyond which the synchronized state is unstable.
A. Pikovsky   +3 more
core   +1 more source

Systemic dysregulation of apolipoproteins in amyotrophic lateral sclerosis serum

open access: yesFEBS Open Bio, EarlyView.
Amyotrophic lateral sclerosis (ALS) is a fatal disease that damages motor neurons. This study found that people with ALS show significant changes in blood fats and the proteins that carry them. Several apolipoproteins were higher, lipid balances were altered, and normal protein–lipid relationships were disrupted.
Finula I. Isik   +6 more
wiley   +1 more source

Relaxation to Fixed Points in the Logistic and Cubic Maps: Analytical and Numerical Investigation

open access: yesEntropy, 2013
Convergence to a period one fixed point is investigated for both logistic and cubic maps. For the logistic map the relaxation to the fixed point is considered near a transcritical bifurcation while for the cubic map it is near a pitchfork bifurcation. We
Edson D. Leonel   +2 more
doaj   +1 more source

Nonequilibrium Probabilistic Dynamics of the Logistic Map at the Edge of Chaos

open access: yes, 2002
We consider nonequilibrium probabilistic dynamics in logistic-like maps $x_{t+1}=1-a|x_t|^z$, $(z>1)$ at their chaos threshold: We first introduce many initial conditions within one among $W>>1$ intervals partitioning the phase space and focus on the ...
A. Upadhyaya   +18 more
core   +1 more source

Logistic map: A possible random-number generator [PDF]

open access: yesPhysical Review E, 1995
Latex 2.09, 14 pages, 7 postscript figures available upon request, preprint No.IP/BBSR/93 ...
Phatak, S. C., Rao, S. Suresh
openaire   +3 more sources

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