Results 81 to 90 of about 277,415 (327)
AIMS Mathematics, 2022 In this paper, a new fractional model of non-Fourier heat conduction is presented that includes phase delays and two fractional orders. To derive the proposed model, the fractional integral Atangana-Baleanu (AB) operator with non-singular and non-local ...
Ahmed Abouelregal +2 more
doaj +1 more source
Photo-acoustic tomography in a rotating setting
, 2019 Photo-acoustic tomography is a coupled-physics (hybrid) medical imaging modality that aims to reconstruct optical parameters in biological tissues from ultrasound measurements. As propagating light gets partially absorbed, the resulting thermal expansion
Bal, Guillaume, Kirkeby, Adrian
core +1 more source
Schatten class Fourier integral operators
Applied and Computational Harmonic Analysis, 2011 Fourier integral operators with sufficiently smooth phase act on the time-frequency content of functions. However time-frequency analysis has only recently been used to analyze these operators. In this paper, we show that if a Fourier integral operator has a smooth phase function and its symbol is well-localized in time and frequency, then the operator
openaire +3 more sources
3D Printed Ultra‐Fast Plastic Scintillators Based on Perovskite‐Photocurable Polymer Composite
Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.The demand for radiation detection is increasing in a number of fields, including high‐energy physics, medical imaging, and homeland security. This study serves to demonstrate the potential for the fabrication of fast perovskite‐based scintillators with complex shapes via stereolithographic additive manufacturing, representing a new path toward the ...
Antonella Giuri +16 more
wiley +1 more source
Long-range Scattering Matrix for Schr\"odinger-type Operators
, 2020 We show that the scattering matrix for a class of Schr\"odinger-type operators with long-range perturbations is a Fourier integral operator with the phase function which is the generating function of the modified classical scattering ...
Nakamura, Shu
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The Wiener Property for a Class of Fourier Integral Operators [PDF]
, 2012 We construct a one-parameter family of algebras consisting of Fourier integral operators. We derive boundedness results, composition rules, and the spectral invariance of this class of operators. The operator algebra is defined by the decay properties of
Cordero, Elena +3 more
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Advanced Functional Materials, EarlyView.A materials and device design concept that comprises a self‐assembled ultra‐thin epitaxial ion‐transporting layer, an amorphous oxide overcoat oxygen‐blocking layer, and a partial filament formed during an electroforming step is proposed for low‐current multilevel resistive switching devices.
Ming Xiao +17 more
wiley +1 more source
Advanced Functional Materials, EarlyView.A wideband tunable electrochromic device with dynamic thermal emissivity control is demonstrated. The system enables adaptive heat regulation via electrochemically modulated silver deposition, achieving efficient cooling and heating states. The flexible design ensures mechanical robustness under bending conditions, making it promising for portable and ...
Jiawei Liang +10 more
wiley +1 more source
Fourier series approximation for the Cauchy singular integral equation
Journal of Numerical Analysis and Approximation Theory, 2018 Using the Fourier series as a projection in the Galerkin method, we approach the solution of the Cauchy singular integral equation. This study is carried in \(L^2\). Numerical examples are developped to show the effectiveness of this method.
Hamid Boulares +2 more
doaj +2 more sources
Keterbatasan Operator Integral Fraksional di Ruang Morrey tak Homogen yang Diperumum [PDF]
, 2009 Salah satu objek bahasan dalam analisis Fourier adalah operator integral. Pembahasan utama di dalam makalah ini adalah pembuktian keterbatasan operator integral fraksional atau yang dikenal juga sebagai operator Riesz di ruang Morrey tak homogen yang ...
Suryawan, Herry Pribawanto
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