Results 31 to 40 of about 736,626 (345)

Magnetic-control multifunctional acoustic metasurface for reflected wave manipulation at deep subwavelength scale

open access: yesScientific 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
doaj   +1 more source

Melonic Turbulence [PDF]

open access: yesCommunications in Mathematical Physics, 2020
54 pages, 20 ...
Dartois, Stéphane   +4 more
openaire   +4 more sources

Site‐Specific Soil Properties of the US Climate Reference Network Soil Moisture

open access: yesVadose 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
doaj   +1 more source

Recent Developments in Understanding Two-dimensional Turbulence and the Nastrom-Gage Spectrum [PDF]

open access: yes, 2006
Two-dimensional turbulence appears to be a more formidable problem than three-dimensional turbulence despite the numerical advantage of working with one less dimension.
A. Polyakov   +109 more
core   +3 more sources

Turbulence and fossil turbulence in oceans and lakes

open access: yesChinese Journal of Oceanology and Limnology, 2004
Turbulence is defined as an eddy-like state of fluid motion where the inertial-vortex forces of the eddies are larger than any of the other forces that tend to damp the eddies out. Energy cascades of irrotational flows from large scales to small are non-turbulent, even if they supply energy to turbulence. Turbulent flows are rotational and cascade from
Leung, Pak Tao, Gibson, Carl H.
openaire   +2 more sources

Archimedes’ law explains penetration of solids into granular media

open access: yesNature 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
doaj   +1 more source

MetaComp: comprehensive analysis software for comparative meta-omics including comparative metagenomics

open access: yesBMC Bioinformatics, 2017
Background During the past decade, the development of high throughput nucleic sequencing and mass spectrometry analysis techniques have enabled the characterization of microbial communities through metagenomics, metatranscriptomics, metaproteomics and ...
Peng Zhai   +6 more
doaj   +1 more source

Deep learning fluid flow reconstruction around arbitrary two-dimensional objects from sparse sensors using conformal mappings

open access: yesAIP 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
doaj   +1 more source

Towards a Simple Model of Compressible Alfvenic Turbulence [PDF]

open access: yes, 1997
A simple model collisionless, dissipative, compressible MHD (Alfvenic) turbulence in a magnetized system is investigated. In contrast to more familiar paradigms of turbulence, dissipation arises from Landau damping, enters via nonlinearity, and is ...
A. Chekhlov   +28 more
core   +2 more sources

POD Analysis of the Wake of Two Tandem Square Cylinders

open access: yesFluids
This study aims to investigate the wake of two tandem square cylinders based on the Proper Orthogonal Decomposition (POD) analyses of the PIV and hotwire data. The cylinder centre-to-centre spacing ratio L/w examined is from 1.2 to 4.2, covering the four
Jingcheng Hao   +4 more
doaj   +1 more source

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