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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   +2 more sources

Global Properties of Cytokine-Enhanced HIV-1 Dynamics Model with Adaptive Immunity and Distributed Delays

open access: yesComputation, 2023
In this paper, we study a model that enhances our understanding of cytokine-influenced HIV-1 infection. The impact of adaptive immune response (cytotoxic T lymphocytes (CTLs) and antibodies) and time delay on HIV-1 infection is included.
Elsayed Dahy   +4 more
doaj   +1 more source

Stability analysis of steel frames according to Eurocode 3 [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2019
In the paper, the qualitative and quantitative comparison of EC3 methods to verify the global stability of the structure is presented. The steel portal frame subjected to varied loads is considered.
Sylwia Pogonowska-Płatek   +1 more
doaj   +1 more source

Global and Koopman modes analysis of sound generation in mixing layers [PDF]

open access: yes, 2013
It is now well established that linear and nonlinear instability waves play a significant role in the noise generation process for a wide variety of shear flows such as jets or mixing layers.
X. Gloerfelt   +7 more
core   +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   +4 more sources

The Global Stability of M33 in MOND [PDF]

open access: yesThe Astrophysical Journal, 2020
Abstract The dynamical stability of disk galaxies is sensitive to whether their anomalous rotation curves are caused by dark matter halos or Milgromian dynamics (MOND). We investigate this by setting up a MOND model of M33. We first simulate it in isolation for 6 Gyr, starting from an initial good match to the rotation curve (RC).
Banik, Indranil   +5 more
openaire   +2 more sources

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

Global Stabilization Via Local Stabilizing Actions [PDF]

open access: yesIEEE Transactions on Automatic Control, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Comparative analysis of global stability of the typical structural systems of multi-storey steel buildings [PDF]

open access: yesFacta Universitatis. Series: Architecture and Civil Engineering, 2012
The paper presents global stability comparative analysis of two distinctive structural systems for one 25 - storey high steel building. These are the system with rigid and the system with hinged joint connections between beams and columns in the steel
Cilić Aleksandra   +2 more
doaj   +1 more source

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