Results 41 to 50 of about 995,745 (408)
Scientific Reports, 2017 Acoustic metasurfaces, exhibiting superior performance with subwavelength thickness, are ideal alternatives for functionalities such as wavefront modulation and acoustic energy trapping, etc.
Xing Chen +3 more
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Turbulence and holography [PDF]
Classical and Quantum Gravity, 2008 We examine the interplay between recent advances in quantum gravity and the problem of turbulence. In particular, we argue that in the gravitational context the phenomenon of turbulence is intimately related to the properties of spacetime foam. In this framework we discuss the relation of turbulence and holography and the interpretation of the ...
Vishnu Jejjala +3 more
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AIP Advances, 2022 The usage of neural networks (NNs) for flow reconstruction (FR) tasks from a limited number of sensors is attracting strong research interest owing to NNs’ ability to replicate high-dimensional relationships.
Ali Girayhan Özbay, Sylvain Laizet
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Site‐Specific Soil Properties of the US Climate Reference Network Soil Moisture
Vadose Zone Journal, 2016 Core Ideas This study quantifies the variability of soils at US Climate Reference Network sites. Soil properties were determined from the analysis of soil core samples.
Timothy B. Wilson +7 more
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Turbulent Magnetohydrodynamic Elasticity: I. Boussinesq-like Approximations for Steady Shear [PDF]
New Astron. 10 (2004) 133-144, 2002 We re-examine the Boussinesq hypothesis of an effective turbulent viscosity within the context of simple closure considerations for models of strong magnetohydrodynamic turbulence. Reynolds-stress and turbulent Maxwell-stress closure models will necessarily introduce a suite of transport coefficients, all of which are to some degree model-dependent ...
arxiv +1 more source
Is the subdominant part of the energy spectrum due to downscale energy cascade hidden in quasi-geostrophic turbulence? [PDF]
, 2006 In systems governing two-dimensional turbulence, surface quasi-geostrophic turbulence, (more generally $\alpha$-turbulence), two-layer quasi-geostrophic turbulence, etc., there often exist two conservative quadratic quantities, one ``energy''-like and ...
Gkioulekas, Eleftherios, Tung, Ka Kit
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Turbulent thermalization [PDF]
Physical Review D, 2004 We study, analytically and with lattice simulations, the decay of coherent field oscillations and the subsequent thermalization of the resulting stochastic classical wave-field. The problem of reheating of the Universe after inflation constitutes our prime motivation and application of the results. We identify three different stages of these processes.
Raphael Micha, Igor Tkachev
openaire +2 more sources
Archimedes’ law explains penetration of solids into granular media
Nature Communications, 2018 The penetration dynamics of solid objects into granular media has been described by theories that are constrained to the use of phenomenological models or empirical parameters. Here, Kang et al.
Wenting Kang +3 more
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Cleaner Engineering and Technology, 2022 The shape design for a thermoelectric generator (TEG) plays an important role in its performance. In this paper, a hyperbolic function was introduced to design a variable cross-section TEG module to optimize the configuration for maximum power generation
Xi Wang, Paul Henshaw, David S-K Ting
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