Results 41 to 50 of about 38,020 (248)

Stability and Hopf Bifurcation Analysis of a Vector-Borne Disease with Time Delay

open access: yesJournal of Applied Mathematics, 2014
A delay-differential modelling of vector-borne is investigated. Its dynamics are studied in terms of local analysis and Hopf bifurcation theory, and its linear stability and Hopf bifurcation are demonstrated by studying the characteristic equation.
Yuanyuan Chen, Ya-Qing Bi
doaj   +1 more source

A Virtual Clinical Trial of Psychedelics to Treat Patients With Disorders of Consciousness

open access: yesAdvanced Science, EarlyView.
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

Dynamical Analysis of a Delayed Diffusive Predator–Prey Model with Additional Food Provided and Anti-Predator Behavior

open access: yesMathematics, 2022
We studied a delayed predator–prey model with diffusion and anti-predator behavior. Assume that additional food is provided for predator population. Then the stability of the positive equilibrium is considered.
Ruizhi Yang, Xiao Zhao, Yong An
doaj   +1 more source

Hopf Bifurcations in a Watt Governor With a Spring

open access: yes, 2008
This paper pursues the study carried out by the authors in "Stability and Hopf bifurcation in a hexagonal governor system", focusing on the codimension one Hopf bifurcations in the hexagonal Watt governor differential system.
Al-Humadi A   +13 more
core   +1 more source

On qualitative analysis of an ecological dynamics with time delay

open access: yesAsian Journal of Control, EarlyView.
Abstract In this paper, we study a fractional‐order predator–prey system with time delay, where the dynamics are logistic with prey population commensurate to the carrying capacity. Mainly, by linearizing the system around the equilibrium point, we first analyze the stability and then prove the existence of Hopf bifurcation.
Canan Celik, Kubra Degerli
wiley   +1 more source

Global stability and bifurcation analysis of a delayed predator-prey system with prey immigration

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
A delayed predator-prey system with a constant rate immigration is considered. Local and global stability of the equilibria are studied, a fixed point bifurcation appears near the boundary equilibrium and Hopf bifurcation occurs near the positive ...
Gang Zhu, Junjie Wei
doaj   +1 more source

Stability Analysis of a Fractional-Order SEIR-KS Computer Virus-Spreading Model with Two Delays

open access: yesJournal of Mathematics, 2021
In this paper, the stability and Hopf bifurcation of a fractional-order model of the Susceptible-Exposed-Infected-Kill Signals Recovered (SEIR-KS) computer virus with two delays are studied.
Zhufeng Wang, Xiaoqian Nie, Maoxin Liao
doaj   +1 more source

Hopf bifurcation analysis of Sel’kov model with time delay

open access: yesXi'an Gongcheng Daxue xuebao, 2023
The Sel’kov model with time-delay diffusion under homogeneous Neumann boundary conditions is considered. Firstly, the local asymptotically stability of the positive equilibrium point of the model is obtained by using spectral theory.
MA Yani, YUAN Hailong, WANG Yadi
doaj   +1 more source

Transition from rotating waves to modulated rotating waves on the sphere

open access: yes, 2005
We study non-resonant and resonant Hopf bifurcation of a rotating wave in SO(3)-equivariant reaction-diffusion systems on a sphere. We obtained reduced differential equations on so(3), the characterization of modulated rotating waves obtained by Hopf ...
Adela N. Comanici   +3 more
core   +1 more source

Synchronous Operation Stability of Three‐Stage Hydropower Stations Based on Feedback Regulation of Regulating Reservoir Water Levels

open access: yesEnergy Science &Engineering, EarlyView.
Layout of the synchronous operation of THSRRs. ABSTRACT This paper focuses on the stability of synchronous operation (SSO) of three‐stage hydropower stations cascaded by regulating reservoirs (THSRRs). Firstly, the model of synchronous operation of THSRRs is established. According to the model, the Hopf bifurcation theory is utilized to analyze the SSO
Min Huang, Wencheng Guo
wiley   +1 more source

Home - About - Disclaimer - Privacy