Results 41 to 50 of about 121,229 (179)

一类具有临时免疫的时滞蠕虫传播模型的Hopf分支(Delay induced Hopf bifurcation in a worm propagation model with partial immunization)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2016
This paper is devoted to Hopf bifurcation of a delayed SVEIR model with partial immunization that describes worms propagation on internet. Sufficient conditions for existence of Hopf bifurcation are obtained by considering the latent period time delay of
ZHANGZizhen(张子振)   +2 more
doaj   +1 more source

Bursting Oscillations in General Coupled Systems: A Review

open access: yesMathematics, 2023
In this paper, the bursting oscillation phenomenon in coupled systems with two time scales is introduced. Firstly, several types of bifurcation are briefly introduced: fold bifurcation, Hopf bifurcation, fold limit cycle bifurcation, homoclinic ...
Danjin Zhang, Youhua Qian
doaj   +1 more source

Pseudo, or Not? Neo‐Goodwinian Growth Cycles With Financial Linkages

open access: yesMetroeconomica, Volume 77, Issue 4, Page 422-437, November 2026.
ABSTRACT A profit‐led Goodwin mechanism generates the observed counterclockwise activity–labor share cycle. Introducing a financial linkage can reproduce this pattern even when demand is not profit‐led. This paper extends neo‐Goodwinian theory by incorporating the valuation ratio into a four‐dimensional model.
Rudiger von Arnim, Luis Felipe Eick
wiley   +1 more source

Suppression of Hopf bifurcation in metal cutting by extrusion machining

open access: yes, 2017
Hopf bifurcation is a common phenomenon during the metal cutting process which results in poor surface finish of the workpiece and inhomogeneous grain structure in materials.
Liu Y   +5 more
core   +1 more source

Stability and Hopf bifurcation on an SEIR delayed model with logistic growth [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2018
This paper investigates the stability and Hopf bifurcation of SEIR delay model with logistic growth. Firstly, the existence and uniqueness of equilibrium point are analyzed.
Aekabut Sirijampa   +2 more
doaj   +1 more source

T(w)o Patch or Not T(w)o Patch: A Novel Biocontrol Model

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 13, Page 14697-14743, 15 September 2026.
ABSTRACT A number of top‐down biocontrol models have been proposed where the introduced predators' efficacy is enhanced via the provision of additional food (AF). However, if the predator has a pest‐dependent monotone functional response, pest extinction is unattainable. In the current manuscript, we propose a model where a predator with pest‐dependent
Urvashi Verma   +2 more
wiley   +1 more source

Anti-control of Hopf bifurcation for a chaotic system

open access: yesNonlinear Engineering
The anti-control of Hopf bifurcation is a method used for bifurcation control. It can be used to realize the occurrence or delay of bifurcation at the specified position to meet the needs of engineering applications. In this study, a 4D chaotic system is
Zhang Liang, Han Qin
doaj   +1 more source

Quantum‐Like Dynamics in Whole‐Brain Models of the Human Connectome

open access: yesAdvanced Science, Volume 13, Issue 51, 14 September 2026.
Quantum‐like dynamics in the human brain. The level of quantum‐like behavior in a non‐quantum system of coupled oscillators is regulated by the spectral gap of the coupling graph. Whole‐brain modelling using QL fits the empirical data significantly better and has a lower model‐derived energy cost than the non‐QL model.
Gustavo Deco   +5 more
wiley   +1 more source

Empirical Assessment of Bifurcation Regions within New Keynesian Models [PDF]

open access: yes
As is well known in systems theory, the parameter space of most dynamic models is stratified into subsets, each of which supports a different kind of dynamic solution.
William Barnett   +1 more
core   +2 more sources

Theoretical Model of Chemomechanical Self‐Oscillation in a Two‐Enzyme Core–Shell Hydrogel With pH‐Gated Microcapsules

open access: yesChemSystemsChem, Volume 8, Issue 5, September 2026.
A closed chemo‐mechanical feedback system is constructed using a GOx/urease core–shell hydrogel with pH‐responsive microcapsules. Proton generation triggers urea release, activating urease and restoring pH, resulting in autonomous swelling–deswelling oscillations.
Shohei Shinbo   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy