Results 101 to 110 of about 53,557 (225)
Analyse de sensibilité d'un robinet à soupape à l'aide de développements sur chaos polynomial [PDF]
, 2010 International audienceL'objectif de cette communication est de présenter une méthode d'analyse de sensibilité basée sur un métamodèle de type chaos polynomial creux et adaptatif.
Berveiller, Marc +2 more
core +1 more source
Compressive sensing adaptation for polynomial chaos expansions
, 2018 Basis adaptation in Homogeneous Chaos spaces rely on a suitable rotation of the underlying Gaussian germ. Several rotations have been proposed in the literature resulting in adaptations with different convergence properties.
Ghanem, Roger G. +7 more
core +1 more source
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.Abstract The NASA Atmospheric Waves Experiment (AWE) employs an OH imager that began measurements aboard the International Space Station (ISS) on 22 November 2023. The motivation for AWE was to quantify gravity wave (GW) responses to diverse sources and their influences extending into the mesosphere and higher altitudes.
David C. Fritts +7 more
wiley +1 more source
International Journal for Numerical Methods in Fluids, Volume 98, Issue 5, Page 557-577, May 2026.This study investigates the impact of uncertain parameters on Navier–Stokes equations coupled with heat transfer using the Intrusive Polynomial Chaos Method (IPCM). Sensitivity equations are formulated for key input parameters, such as viscosity and thermal diffusivity, and solved numerically using the Finite Element‐Volume method.
N. Nouaime +3 more
wiley +1 more source
Multifidelity Uncertainty Quantification of a Commercial Supersonic Transport [PDF]
The objective of this work was to develop a multifidelity uncertainty quantification approach for efficient analysis of a commercial supersonic transport.
Phillips, Ben D., West, Thomas K., IV
core +1 more source
Thermal Segregation and Reddening in Europa's Double Ridges
Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.Abstract Europa's double ridges often display lower albedo and redder color than their surroundings. Their unique topography may cause sublimation‐driven darkening due to illumination and self‐heating—the process of thermal segregation. We apply an advanced 3D thermophysical model, including shadowing and self‐heating through mutual exchange of ...
Kya C. Sorli +3 more
wiley +1 more source
Quantum computing of quantum chaos and imperfection effects
, 2000 We study numerically the imperfection effects in the quantum computing of the kicked rotator model in the regime of quantum chaos. It is shown that there are two types of physical characteristics: for one of them the quantum computation errors grow ...
A. Ekert +34 more
core +1 more source
Uncertainty quantification of multi-scale resilience in networked systems with nonlinear dynamics using arbitrary polynomial chaos. [PDF]
Sci Rep, 2023 Zou M, Fragonara LZ, Qiu S, Guo W.
europepmc +1 more source
Stability of Real Parametric Polynomial Discrete Dynamical Systems
Discrete Dynamics in Nature and Society, 2015 We extend and improve the existing characterization of the dynamics of general quadratic real polynomial maps with coefficients that depend on a single parameter λ and generalize this characterization to cubic real polynomial maps, in a consistent theory
Fermin Franco-Medrano +1 more
doaj +1 more source
Time- and Frequency-Domain Evaluation of Stochastic Parameters on Signal Lines
Advanced Electromagnetics, 2012 This paper focuses on the derivation of enhanced transmission-line models allowing to describe, in time and frequency domain, a realistic interconnect with the inclusion of external uncertainties, like process variations or routing and layout ...
P. Manfredi +2 more
doaj +1 more source