Results 21 to 30 of about 742 (244)

Dynamics Analysis of a Discrete-Time Commensalism Model with Additive Allee for the Host Species

open access: yesAxioms, 2023
We propose and study a class of discrete-time commensalism systems with additive Allee effects on the host species. First, the single species with additive Allee effects is analyzed for existence and stability, then the existence of fixed points of ...
Yanbo Chong   +3 more
doaj   +1 more source

Pattern Transition on Inertial Focusing of Neutrally Buoyant Particles Suspended in Rectangular Duct Flows

open access: yesMicromachines, 2021
The continuous separation and filtration of particles immersed in fluid flows are important interests in various applications. Although the inertial focusing of particles suspended in a duct flow is promising in microfluidics, predicting the focusing ...
Hiroshi Yamashita   +2 more
doaj   +1 more source

Using the Logistic Map as Compared to the Cubic Map to Show the Convergence and the Relaxation of the Period–1 Fixed Point

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2022
In this paper, we employ the logistic map and the cubic map to locate the relaxation and the convergence to the periodic fixed point of a system, specifically, the period—1 fixed point.
Patrick Akwasi Anamuah Mensah   +4 more
doaj   +1 more source

Chua’s oscillator: an introductory approach to chaos theory [PDF]

open access: yesRevista Brasileira de Ensino de Física, 2020
The purpose of this article is to build an introductory approach to chaos theory from the Chua’ oscillator for students of mathematics, physics and engineering.
Alexandre Sordi
doaj   +1 more source

The Local Bifurcation of Food Chain Prey-Predator Model with Crowley-Martin-Type of Functional Response

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences
In this work, the conditions of the occurrence of the local bifurcation (such as saddle-node, trans critical ,and pitchfork) of all steady points of a food chain model. With fear and Growly-Martin functional response have been established.
Asmaa Aziz, Azhar Abbas Majeed
doaj   +1 more source

Non-smooth pitchfork bifurcations

open access: yesDiscrete & Continuous Dynamical Systems - B, 2004
The author considers the relationship between the blow-out bifurcation and another bifurcation which creates a pair of stable invariant curves and can properly be called a generalized pitchfork bifurcation. The goal of this paper is to show that the two types of bifurcation (generalized) described above are really part of the same generalized ...
openaire   +2 more sources

A Stochastic Pitchfork Bifurcation in Most Probable Phase Portraits [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2018
We study stochastic bifurcation for a system under multiplicative stable Lévy noise (an important class of non-Gaussian noise), by examining the qualitative changes of equilibrium states with its most probable phase portraits. We have found some peculiar bifurcation phenomena in contrast to the deterministic counterpart: (i) When the non-Gaussianity ...
Hui Wang, Xiaoli Chen, Jinqiao Duan
openaire   +3 more sources

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

Unleashing the Power of Machine Learning in Nanomedicine Formulation Development

open access: yesAdvanced Functional Materials, EarlyView.
A random forest machine learning model is able to make predictions on nanoparticle attributes of different nanomedicines (i.e. lipid nanoparticles, liposomes, or PLGA nanoparticles) based on microfluidic formulation parameters. Machine learning models are based on a database of nanoparticle formulations, and models are able to generate unique solutions
Thomas L. Moore   +7 more
wiley   +1 more source

Sequence of Routes to Chaos in a Lorenz-Type System

open access: yesDiscrete Dynamics in Nature and Society, 2020
This paper reports a new bifurcation pattern observed in a Lorenz-type system. The pattern is composed of a main bifurcation route to chaos (n=1) and a sequence of sub-bifurcation routes with n=3,4,5,…,14 isolated sub-branches to chaos.
Fangyan Yang   +3 more
doaj   +1 more source

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