Results 171 to 180 of about 740,028 (360)

Single‐Shot Auto‐Exposure and High Dynamic Range Imaging Based on Asynchronous Operation of Pixel Array Circuitry

open access: yesInternational Journal of Circuit Theory and Applications, EarlyView.
Method for automated asynchronous adaptation to high dynamic range lighting conditions during image acquisition. ABSTRACT This paper introduces an image formation technique that realizes automatic adaptation to the illumination conditions during image capture.
Yassine Lamouaraa‐Sedlackova   +2 more
wiley   +1 more source

Efficient space‐time adaptivity for parabolic evolution equations using wavelets in time and finite elements in space

open access: yesNumerical Linear Algebra with Applications, Volume 30, Issue 1, January 2023., 2023
Abstract Considering the space‐time adaptive method for parabolic evolution equations we introduced in Stevenson et al., this work discusses an implementation of the method in which every step is of linear complexity. Exploiting the tensor‐product structure of the space‐time cylinder, the method allows for a family of trial spaces given as spans of ...
Raymond van Venetië, Jan Westerdiep
wiley   +1 more source

On the Density–Density Correlations of the Non‐Interacting Finite Temperature Electron Gas

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT The density–density correlations of the non‐interacting finite temperature electron gas are discussed in detail. Starting from the ideal linear density response function and utilizing general relations from linear response theory, known and novel expressions are derived for the pair correlation function, static structure factor, dynamic ...
Panagiotis Tolias   +2 more
wiley   +1 more source

An element‐based formulation for ES‐FEM and FS‐FEM models for implementation in standard solid mechanics finite element codes for 2D and 3D static analysis

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 124, Issue 2, Page 402-433, 30 January 2023., 2023
Abstract Edge‐based and face‐based smoothed finite element methods (ES‐FEM and FS‐FEM, respectively) are modified versions of the finite element method allowing to achieve more accurate results and to reduce sensitivity to mesh distortion, at least for linear elements. These properties make the two methods very attractive. However, their implementation
Daniele Colombo   +3 more
wiley   +1 more source

Current algebra and Kι3 form factors [PDF]

open access: green, 1967
J. Iliopoulos, R. P. Van Royen
openalex   +1 more source

Short Wavelength Limit of the Dynamic Matsubara Local Field Correction

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT We investigate the short wavelength limit of the dynamic Matsubara local field correction G˜q,zl$$ \tilde{G}\left(\mathbf{q},{z}_l\right) $$ of the uniform electron gas based on direct ab initio path integral Monte Carlo (PIMC) results over an unprecedented range of wavenumbers, q≲20qF$$ q\lesssim 20{q}_{\mathrm{F}} $$, where qF$$ {q}_{\mathrm{
Tobias Dornheim   +3 more
wiley   +1 more source

Efficient formulation of a two‐noded geometrically exact curved beam element

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 124, Issue 3, Page 570-619, 15 February 2023., 2023
Abstract The article extends the formulation of a 2D geometrically exact beam element proposed by Jirásek et al. (2021) to curved elastic beams. This formulation is based on equilibrium equations in their integrated form, combined with the kinematic relations and sectional equations that link the internal forces to sectional deformation variables.
Martin Horák   +2 more
wiley   +1 more source

Comment on “The N=3 Weyl multiplet in four dimensions”

open access: yesPhysics Letters B, 2019
N=3 Weyl multiplet in four dimensions was first constructed in J. van Muiden et al. (2017) where the authors used the current multiplet approach to obtain the linearized transformation rules and completed the non-linear variations using the ...
Subramanya Hegde, Bindusar Sahoo
doaj  

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