Results 21 to 30 of about 9,316,771 (402)

Dynamical aspects of smoking model with cravings to smoke

open access: yesNonlinear Engineering, 2021
The square-root dynamics of smoking model with cravings to smoke, in which square root of potential smokers and smokers is the interaction term, has been studied.
Awan Aziz Ullah   +4 more
doaj   +1 more source

Dynamical analysis of fractional-order Holling type-II food chain model

open access: yesMathematical Biosciences and Engineering, 2021
This paper proposed a fractional-order Holling type-II food chain model. First, we verified the existence, uniqueness, nonnegativity and boundedness of the solution of the model, and some conditions for equilibrium existence and local stability were ...
Cuimin Liu, Zhen Wang, Bo Meng
doaj   +1 more source

Global stability analysis and stabilization of power amplifiers [PDF]

open access: yes2008 Microwaves, Radar and Remote Sensing Symposium, 2008
Power amplifiers often exhibit undesired behavior from certain input power value which cannot be predicted with a small-signal stability analysis. Among the commonly observed undesired phenomena are spurious oscillations, frequency divisions, hysteresis or chaos.
Suárez, Almudena   +2 more
openaire   +5 more sources

Global stability of a delayed and diffusive virus model with nonlinear infection function

open access: yesJournal of Biological Dynamics, 2021
This paper studies a delayed viral infection model with diffusion and a general incidence rate. A discrete-time model was derived by applying nonstandard finite difference scheme. The positivity and boundedness of solutions are presented.
Yan Geng, Jinhu Xu
doaj   +1 more source

An Approach for the Global Stability of Mathematical Model of an Infectious Disease

open access: yesSymmetry, 2020
The global stability analysis for the mathematical model of an infectious disease is discussed here. The endemic equilibrium is shown to be globally stable by using a modification of the Volterra–Lyapunov matrix method.
M. Masoumnezhad   +6 more
semanticscholar   +1 more source

Stability and bifurcation analysis of an HIV-1 infection model with a general incidence and CTL immune response

open access: yesJournal of Biological Dynamics, 2021
In this paper, with eclipse stage in consideration, we propose an HIV-1 infection model with a general incidence rate and CTL immune response. We first study the existence and local stability of equilibria, which is characterized by the basic infection ...
Xinsheng Ma, Yuhuai Zhang, Yuming Chen
doaj   +1 more source

Mathematical analysis of a two-tiered microbial food-web model for the anaerobic digestion process

open access: yesMathematical Biosciences and Engineering, 2023
In this research paper, we presented a four-dimensional mathematical system modeling the anaerobic mineralization of phenol in a two-step microbial food-web. The inflowing concentrations of the hydrogen and the phenol are considered in our model.
Amer Hassan Albargi, Miled El Hajji
doaj   +1 more source

Global Stability for Fractional Diffusion Equations in Biological Systems

open access: yesComplex, 2020
This paper proposes a new method of construction of Lyapunov functionals for the dynamical systems described by fractional differential equations and fractional partial differential equations. The proposed method is rigorously presented. Furthermore, the
K. Hattaf, N. Yousfi
semanticscholar   +1 more source

Modeling Citrus Huanglongbing transmission within an orchard and its optimal control

open access: yesMathematical Biosciences and Engineering, 2020
Citrus Huanglongbing (HLB) is the most devastating citrus disease worldwide. In this paper, a deterministic dynamical model is proposed to explore the transmission dynamics of HLB between citrus tree and Asian citrus psyllid (ACP).
Fumin Zhang   +4 more
doaj   +1 more source

Stability analysis of SARS-CoV-2/HTLV-I coinfection dynamics model

open access: yesAIMS Mathematics, 2023
Although some patients with coronavirus disease 2019 (COVID-19) develop only mild symptoms, fatal complications have been observed among those with underlying diseases.
A. M. Elaiw, A. S. Shflot , A. D. Hobiny
doaj   +1 more source

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