Results 11 to 20 of about 7,726,351 (314)

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

ASEAN at a Crossroads: Navigating Disunity Amid Global Power Struggles [PDF]

open access: yes, 2023
Southeast Asia currently finds itself at a critical juncture fraught with uncertainty. While it was once hailed as a stronghold of stability and economic prosperity, the region now grapples with a slew of pressing challenges. These include the escalating
IndraStra Global, Editorial Team
core   +1 more source

Dynamical Behavior of a Fractional Order Model for Within-Host SARS-CoV-2

open access: yesMathematics, 2022
The prime objective of the current study is to propose a novel mathematical framework under the fractional-order derivative, which describes the complex within-host behavior of SARS-CoV-2 by taking into account the effects of memory and carrier.
Kaushik Dehingia   +4 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

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

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

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

Sharp global nonlinear stability for a fluid overlying a highly porous material [PDF]

open access: yes, 2009
The stability of convection in a two-layer system in which a layer of fluid with a temperature-dependent viscosity overlies and saturates a highly porous material is studied. Owing to the difficulties associated with incorporating the nonlinear advection
A. A. Hill   +3 more
core   +1 more source

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

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   +4 more sources

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