Results 31 to 40 of about 61,970 (267)
Discrete & Continuous Dynamical Systems, 2021 We present a definition of chaotic Delone set, and establish the genericity of chaos in the space of $( , )$-Delone sets for $ \geq $. We also present a hyperbolic analogue of the cut-and-project method that naturally produces examples of chaotic Delone sets.
Alvarez Lopez, Jesus Antonio +4 more
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A non-autonomous chaotic system and its application in weak signal detection
Shenzhen Daxue xuebao. Ligong ban, 2023 To effectively detect weak useful signals embedded in strong noise, we constructe a three-dimensional dissipative chaotic system with rich dynamic behavior. By using the numerical simulation methods including phase diagrams, Lyapunov exponent spectra and
YAN Shaohui +4 more
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Physical Review D, 1992 A very weakly coupled scalar field with mass $m$ and initial vacuum expectation value $V$ will provide enough mass to close the universe provided $V\simeq (3\times 10^8\gev)(100\gev/m)^{1/4}$. We discuss possible models in which such a field could arise.
Rangarajan, R., Srednicki, M.
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Chaotic coupling constants [PDF]
Nuclear Physics B, 1994 We examine some novel physical consequences of the general structure of moduli spaces of string vacua. These include (1) finiteness of the volume of the moduli space and (2) chaotic motion of the moduli in the early universe. To fix ideas we examine in detail the example of the (conjectural) dilaton-axion ``$S$-duality'' of four-dimensional string ...
Horne, James H., Moore, Gregory
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Celestial Mechanics and Dynamical Astronomy, 2011 We study the role of asymptotic curves in supporting the spiral structure of a N-body model simulating a barred spiral galaxy. Chaotic orbits with initial conditions on the unstable asymptotic curves of the main unstable periodic orbits follow the shape of the periodic orbits for an initial interval of time and then they are diffused outwards ...
Contopoulos, George, Harsoula, Mirella
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Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Nature CommunicationsNoncollinear dipole textures greatly extend the scientific merits and application perspective of ferroic materials. In fact, noncollinear spin textures have been well recognized as one of the core issues of condensed matter, e.g.
Na Wang +8 more
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Photonics, 2023 In this work, we construct a model of an asymmetrically coupled network of semiconductor chaotic lasers in order to recognize noisy digital images of digits 0–9, derived from different samples in the digital image sets 0–9 found within the MNIST dataset.
Dongzhou Zhong +6 more
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Are chaotic functions really chaotic [PDF]
Bulletin of the Australian Mathematical Society, 1983 We give a classCof continuous functions from [0, 1] onto itself which are chaotic in the sense of Li and Yorke, but with the property that almost all (in the sense of Lebesgue) points of [0, 1] are eventually fixed. For some continuous functions from [0, 1] onto itself which are not inC, We also show that their non-wandering sets are all equal to the ...
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Laser‐Induced Graphene from Waste Almond Shells
Advanced Functional Materials, EarlyView.Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova +9 more
wiley +1 more source