Results 111 to 120 of about 7,268 (236)

Physics‐Informed Bayesian Optimisation of Utility‐Scale Wind Farms in Synthetically Generated Complex Terrain Using LES

open access: yesWind Energy, Volume 29, Issue 6, June 2026.
ABSTRACT Optimising turbine layouts to maximise power output is crucial for wind farm development, particularly in complex terrain where analytical wake models fail to capture key flow physics. We present the first application of Bayesian optimisation (BO) combined with large eddy simulations (LES) for utility‐scale wind farm layout optimisation in ...
Christian Jané‐Ippel   +2 more
wiley   +1 more source

Direct Bayesian Update of Polynomial Chaos Representations [PDF]

open access: yes, 2011
We present a fully deterministic approach to a probabilistic interpretation of inverse problems in which unknown quantities are represented by random fields or processes, described by a non-Gaussian prior distribution.
Matthies, Hermann G.   +3 more
core   +1 more source

Interval Uncertainty Analysis for Wheel–Rail Contact Load Identification Based on First-Order Polynomial Chaos Expansion

open access: yesMathematics
Traditional methods for identifying wheel–rail contact loads are based on deterministic models, in which the uncertainties such as material inhomogeneity and geometric tolerance are not considered. For wheel–rail contact load analysis with uncertainties,
Shengwen Yin, Haotian Xiao, Lei Cao
doaj   +1 more source

Effect of Unstable Water Flow on Grain Transport: Insights From Laboratory Experiments Under Reduced Atmospheric Pressure

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Nowadays, Mars presents an environment characterized by low atmospheric pressure (∼6 mbar), which profoundly alters water‐driven surface processes known from Earth. Under these conditions, water rapidly boils, cools, and stabilizes near the triple point, often freezing, which strongly limits its ability to transport sediment.
Ondřej Krýza   +7 more
wiley   +1 more source

Generalized polynomial chaos expansions with weights.

open access: yes, 2015
Polynomial chaos is used as an alternative to Monte Carlo methods for the propagation of uncertainty through dynamical systems. By truncating the infinite series of the polynomial chaos expansion to a finite order, the positivity of the approximate ...
Stavropoulou, F., Obermaier, J.
core  

Hybrid ideologies and glorification of violence during adolescence: Links to support for violent and nonviolent radicalization

open access: yesJournal of Research on Adolescence, Volume 36, Issue 2, June 2026.
Abstract Adolescence is a seminal period for the development of ideologies and a time of heightened risk for both violent and nonviolent radicalization. Although mounting evidence points to the growing prevalence of hybrid ideologies and violence glorification among individuals legitimizing violence, empirical studies that document these emerging ...
Diana Miconi   +3 more
wiley   +1 more source

A Polynomial Chaos Approach to Control Design

open access: yes, 2009
A method utilizing H2 control concepts and the numerical method of Polynomial Chaos was developed in order to create a novel robust probabilistically optimal control approach.
Templeton, Brian Andrew
core  

Sleep Deprivation in Mice: Looking Beyond the Slow Wave Rebound

open access: yesJournal of Sleep Research, Volume 35, Issue 3, June 2026.
ABSTRACT Sleep is a fundamental process supporting the dynamic regulation of neural function. Emerging methods have proposed that the aperiodic components of brain signals (such as the spectral slope, spectral intercept, and spectral knee), in addition to entropy‐based measures, offer robust empirical markers of neural states.
Tárek Zoltán Magyar   +2 more
wiley   +1 more source

Uncertainty quantification of grating filters via a Polynomial-Chaos method with a variance-adaptive design domain

open access: yesResults in Optics
In this work, we describe an algorithm based on Polynomial-Chaos (PC) expansions for the study of uncertainty quantification problems involving grating filters.
Aristeides D. Papadopoulos   +3 more
doaj   +1 more source

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