Results 71 to 80 of about 18,412 (196)
Dynamic behaviors of a modified SIR model in epidemic diseases using nonlinear incidence and recovery rates. [PDF]
PLoS ONE, 2017 The transmission of infectious diseases has been studied by mathematical methods since 1760s, among which SIR model shows its advantage in its epidemiological description of spread mechanisms.
Gui-Hua Li, Yong-Xin Zhang
doaj +1 more source
Stabilizing unstable periodic orbits in the Lorenz equations using time-delayed feedback control
, 2007 For many years it was believed that an unstable periodic orbit with an odd number of real Floquet multipliers greater than unity cannot be stabilized by the time-delayed feedback control mechanism of Pyragus.
C. Sparrow +6 more
core +1 more source
Bifurcation discovery tool [PDF]
, 2005 Motivation: Biochemical networks often yield interesting behavior such as switching, oscillation and chaotic dynamics. This article describes a tool that is capable of searching for bifurcation points in arbitrary ODE-based reaction networks by directing
Bergmann, Frank +3 more
core +1 more source
Methods Based on Polynomial Chaos for Quadratic Delay Differential Equations With Random Parameters
Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 1, March 2026.ABSTRACT We consider systems of delay differential equations (DDEs), including a single delay and a quadratic right‐hand side. In a system, parameters are replaced by random variables to perform an uncertainty quantification. Thus the solution of the DDEs becomes a random process, which can be represented by a series of the generalised polynomial chaos.
Roland Pulch
wiley +1 more source
Periodic orbits in hyperchaotic Chen systems
Electronic Journal of Differential Equations, 2015 In this work, we show a zero-Hopf bifurcation in a Hyperchaotic Chen system. Using averaging theory, we prove the existence of two periodic orbits bifurcating from the zero-Hopf equilibria located at the origin of the Hyperchaotic Chen system.
Susanna Maza
doaj
Journal of Applied Mathematics, 2014 Stability and bifurcation behaviors for a model of simply supported functionally graded materials rectangular plate subjected to the transversal and in-plane excitations are studied by means of combination of analytical and numerical methods.
Dongmei Zhang, Fangqi Chen
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Complex Dynamics of Rössler–Nikolov–Clodong O Hyperchaotic System: Analysis and Computations
Axioms, 2023 This paper discusses the analysis and computations of chaos–hyperchaos (or vice versa) transition in Rössler–Nikolov–Clodong O (RNC-O) hyperchaotic system.
Svetoslav G. Nikolov, Vassil M. Vassilev
doaj +1 more source
Small Structures, Volume 7, Issue 3, March 2026.Composition engineering of Sb–Bi‐based systems enables tunable ionic conduction and stable, lead‐free memristors. The interplay between capacitive and inductive processes gives rise to strong synaptic functionalities, highlighting their potential for emerging neuromorphic computing applications.
Ramesh Kumar +5 more
wiley +1 more source
A Thermodynamic Framework for Turing‐Type Instabilities in Porous Media: Part I Theory
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.Abstract Pattern formation in geological materials is commonly described using analogies to Turing‐type reaction–diffusion systems, yet a unifying thermodynamic explanation remains elusive. Here we develop a multiscale, thermodynamically consistent framework for pattern‐forming instabilities in porous media undergoing coupled thermo–hydro–mechanical ...
Klaus Regenauer‐Lieb +5 more
wiley +1 more source
A Virtual Clinical Trial of Psychedelics to Treat Patients With Disorders of Consciousness
Advanced Science, Volume 13, Issue 11, 23 February 2026.Disorders of consciousness after severe brain injury are marked by reduced complexity of brain activity and limited treatment options. Using personalized whole‐brain models, this study shows that simulated lysergic acid diethylamide (LSD) and psilocybin shift patient brain dynamics closer to criticality.
Naji L.N. Alnagger +17 more
wiley +1 more source