Results 11 to 20 of about 1,877,864 (293)
Frontiers in Earth Science, 2022 Increasing the frequency range of physics-based predictions of earthquake ground motions requires to account for small-scale heterogeneities, which can only be described in a stochastic way.
Malcon Celorio +4 more
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Hybrid Method for Full-Wave Simulations of Forests at L-Band
IEEE Access, 2022 The full-wave simulations of 3D Maxwell equations of forests at L-band are carried out with a two-step hybrid method. The tallest trees considered include one 8-meter tall trunk, 18 primary branches and 108 secondary branches.
Weihui Gu +3 more
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EFFECT OF β ON EFFECTIVE MULTIPLICATION FACTOR IN 1/fβ SPECTRUM RANDOM SYSTEM [PDF]
EPJ Web of Conferences, 2021 We investigated the effect of β on effective multiplication factor(keff) in the 1/fβ spectrum random system. The random system was generated by the 1/fβ noise model.
Araki Shouhei +3 more
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Stochastic finite elements: Where is the physics? [PDF]
Theoretical and Applied Mechanics, 2011 The micromechanics based on the Hill-Mandel condition indicates that the majority of stochastic finite element methods hinge on random field (RF) models of material properties (such as Hooke’s law) having no physical content, or even at odds with ...
Ostoja-Starzewski Martin
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Physics-Based Coherent Modeling of Long-Range Millimeter-Wave Propagation and Scattering in Rain
IEEE Open Journal of Antennas and Propagation, 2023 Precipitation and in particular rain present a random medium with constituent particles having dimensions comparable to the wavelength at millimeter-wave frequencies.
Behzad Yektakhah, Kamal Sarabandi
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Effective multipoles in random media [PDF]
Communications in Partial Differential Equations, 2020 60 ...
Bella, P., Giunti, A., Otto, F.
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Noninvasive Imaging Through Random Media [PDF]
SIAM Journal on Applied Mathematics, 2018 When waves propagate through a strongly scattering medium the energy is transferred to the incoherent wave part by scattering. The wave intensity then forms a random speckle pattern seemingly without much useful information. However, a number of recent physical experiments show how one can extract useful information from this speckle pattern.
Garnier, Josselin, Solna, Knut
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Applied Sciences, 2021 In this study, the problem of the influence of a horizontally inhomogeneous liquid bottom impedance, given by random Gaussian function of the speed of sound and by density, on the propagation of low-frequency sound in a shallow-water waveguide is ...
Fengqin Zhu +2 more
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Wave propagation in random media: beyond Gaussian statistics [PDF]
ESAIM: Proceedings and Surveys, 2023 In this paper we review some aspects of wave propagation in random media. In the physics literature the picture seems simple: for large propagation distances, the wavefield has Gaussian statistics, mean zero, and second-order moments determined by ...
Garnier Josselin
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Improvement of Image Classification by Multiple Optical Scattering
IEEE Photonics Journal, 2021 Multiple optical scattering occurs when light propagates in a non-uniform medium. During the multiple scattering, images were distorted and the spatial information they carried became scrambled.
Xinyu Gao +9 more
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