Results 11 to 20 of about 2,378,174 (337)

Bumpless Transfer of Uncertain Switched System and Its Application to Turbofan Engines

open access: yesEnergies, 2021
Nonlinear control problems in turbofan engines are challenging. No single nonlinear controller can achieve desired control effects in a full flight envelope, but in the case of multiple controllers, there exist problems in the bumpless transfer between ...
Penghui Sun   +5 more
doaj   +1 more source

On Λ-Fractional Wave Propagation in Solids

open access: yesMathematics, 2023
Wave propagation in solids is discussed, based upon inherently non-local Λ-fractional analysis. Following the governing equations of Λ-fractional continuum mechanics, the Λ-fractional wave equations are derived.
Kostantinos A. Lazopoulos   +1 more
doaj   +1 more source

On global stability of financial networks [PDF]

open access: yesJournal of Complex Networks, 2014
arXiv admin note: text overlap with arXiv:1112.5687 by other authors. Prior title for this article was "Contagion in Financial Networks: Measure, Evaluation and Implications"
Bhaskar DasGupta, Lakshmi Kaligounder
openaire   +3 more sources

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

Stability of Global Monopoles Revisited [PDF]

open access: yesPhysical Review Letters, 2000
We analyze the stability of global O(3) monopoles in the infinite cutoff (or scalar mass) limit. We obtain the perturbation equations and prove that the spherically symmetric solution is classically stable (or neutrally stable) to axially symmetric, square integrable, or power-law decay perturbations.
Jon Urrestilla, Ana Achúcarro
openaire   +4 more sources

A General Multipatch Model of Ebola Dynamics

open access: yesNonautonomous Dynamical Systems, 2021
A model for the transmission dynamics of Ebola virus in a multipatch network setting is studied. The model considers the contribution to the dynamics by people who are susceptible, infectious, isolated, deceased but still infectious and not yet buried ...
Rebaza Jorge
doaj   +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

Global dynamics of a modified Leslie-Gower predator-prey model with Beddington-DeAngelis functional response and prey-taxis

open access: yesElectronic Research Archive, 2022
In this paper, our purpose is to discuss the global dynamics of a modified Leslie-Gower predator-prey model with Beddington-DeAngelis functional response and prey-taxis under homogeneous Neumann boundary conditions.
Jialu Tian, Ping Liu
doaj   +1 more source

The Global Stability of our Galaxy [PDF]

open access: yesSymposium - International Astronomical Union, 1985
Many mass models of our Galaxy (see e.g. Schmidt 1985 for a review) assume the disc to be nearly axisymmetric. For consistency, therefore, no such model should possess gross non-axisymmetric instabilities. However, most attribute less than half the central attraction at the Sun to bulge and halo material - a situation where bar forming instabilities ...
openaire   +5 more sources

Global stability in job systems

open access: yesJournal of Mathematical Analysis and Applications, 1988
A simple job system with n grades is introduced here and it is described by a system \(\dot x_ i=x_ i\sum^{n}_{j=1}a_{ij}x_ j\), \(i=1,2,...,n\). The per capita growth rate coefficients \(a_{ij}\) are such that \(a_{ii}0\), \(i\neq j\). Under these conditions a complete picture of the phase portrait of the system is presented as follows: Let \(A=(a_{ij}
Karakostas, G., Gyori, I.
openaire   +3 more sources

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