Results 31 to 40 of about 360,424 (294)

Unidimensional model of the ad-atom diffusion on a substrate submitted to a standing acoustic wave I. Derivation of the ad-atom motion equation

open access: yes, 2012
The effect of a standing acoustic wave on the diffusion of an ad-atom on a crystalline surface is theoretically studied. We used an unidimensional space model to study the ad-atom+substrate system.
A. A. Maradudin   +10 more
core   +2 more sources

On the Seismicity of September 7, 2011 X1.8-class Flare

open access: yes, 2013
We present results of our preliminary analysis of acoustically active X-class flare of September 7, 2011. We report two acoustic sources detected via acoustic holography and verified by finding a ridge in time-distance diagrams.
Green, L. M.   +3 more
core   +1 more source

Spin dynamics in the generalized ferromagnetic Kondo model for manganites [PDF]

open access: yes, 1999
Dynamical spin susceptibility is calculated for the generalized ferromagnetic Kondo model which describes itinerant $e_{g}$ electrons interacting with localized $t_{2g}$ electrons with antiferromagnetic coupling.
Perkins, N. B., Plakida, N. M.
core   +1 more source

Acoustic focusing effect based on artificial periodic structure

open access: yesAIP Advances, 2019
To achieve high-efficiency acoustic focusing, an artificial periodic acoustic structure composed of two-dimensional three-component cell arrays was used to manipulate the transmission wave fronts of acoustic waves, and the acoustic field characteristics ...
Shuai Tang   +4 more
doaj   +1 more source

Acoustic phonon dynamics in thin-films of the topological insulator Bi2Se3 [PDF]

open access: yes, 2015
Transient reflectivity traces measured for nanometer-sized films of the topological insulator Bi2Se3 revealed GHz-range oscillations driven within the relaxation of hot carriers photoexcited with ultrashort laser pulses of 1.51 eV photon energy.
Babakiray, Sercan   +4 more
core   +3 more sources

Structural optimization and analysis of surface acoustic wave biosensor based on numerical method

open access: yesInternational Journal of Distributed Sensor Networks, 2019
The biosensor based on surface acoustic wave is of great significance for the application of biological clinical detection, but the sensitivity and specificity of surface acoustic wave biosensor still need to be improved.
Zhaoming Zhou   +3 more
doaj   +1 more source

Wave–wave interactions and deep ocean acoustics [PDF]

open access: yesThe Journal of the Acoustical Society of America, 2013
Deep ocean acoustics, in the absence of shipping and wildlife, is driven by surface processes. Best understood is the signal generated by non-linear surface wave interactions, the Longuet-Higgins mechanism, which dominates from 0.1 to 10 Hz, and may be significant for another octave.
Guralnik, Zachary   +3 more
openaire   +3 more sources

Localization of Rock Acoustic Emission Sources Based on a Spaced Sensors System Consisting of Two Combined Receivers and a Hydrophone

open access: yesSensors
The paper considers the results of experiments on localization of the sources of geoacoustic radiation generated in near-surface sedimentary rocks.
Yuri Marapulets   +3 more
doaj   +1 more source

Localization of classical waves I: Acoustic waves [PDF]

open access: yesCommunications in Mathematical Physics, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Figotin, Alexander, Klein, Abel
openaire   +3 more sources

Noise generation in the solid Earth, oceans, and atmosphere, from non-linear interacting surface gravity waves in finite depth [PDF]

open access: yes, 2012
Oceanic pressure measurements, even in very deep water, and atmospheric pressure or seismic records, from anywhere on Earth, contain noise with dominant periods between 3 and 10 seconds, that is believed to be excited by ocean surface gravity waves. Most
Ardhuin, Fabrice, Herbers, Thomas H. C.
core   +4 more sources

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