Results 21 to 30 of about 236,690 (298)
Relativistic Acoustic Geometry [PDF]
, 1999 Sound wave propagation in a relativistic perfect fluid with a non-homogeneous isentropic flow is studied in terms of acoustic geometry. The sound wave equation turns out to be equivalent to the equation of motion for a massless scalar field propagating ...
(Visser M +14 more
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Advances in Mechanical Engineering, 2019 The actuation technique of a surface acoustic wave motor with nanometer scale linear motion was experimentally investigated in this study. The surface acoustic wave motor comprised a stator made of a Y+128° cut, X-propagation lithium niobate substrate ...
Tai-Ho Yu
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Electron States on the Rough GaAs (100) Surface, Formed by the Surface Acoustic Wave and Adsorbed Atoms [PDF]
Журнал нано- та електронної фізики, 2017 The theory of electron states is developed on the adsorbed surface of semiconductor which is bounded by the rough surface. The surface roughness are formed by both quasi-Rayleigh acoustic wave and adsorbed atoms.
Рњ.Ya.В Seneta +2 more
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Acoustic wave propagation in the solar sub-photosphere with localised magnetic field concentration: effect of magnetic tension [PDF]
, 2009 Aims: We analyse numerically the propagation and dispersion of acoustic waves in the solar-like sub-photosphere with localised non-uniform magnetic field concentrations, mimicking sunspots with various representative magnetic field configurations ...
Cally +31 more
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Formation of a Complex Topologies of SAW-Based Inertial Sensors by Laser Thin Film Local Evaporation
Micromachines, 2020 Originally, sensors based on surface acoustic waves are fabricated using photolithography, which becomes extremely expensive when a small series or even single elements are needed for the research.
Alexander Kukaev +6 more
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Acoustics, 2021 The current century witnessed an overwhelming research interest in phononic crystals (PnCs) and acoustic metamaterials (AMs) research owing to their fantastic properties in manipulating acoustic and elastic waves that are inconceivable from naturally ...
Muhammad, C.W. Lim, Andrew Y. T. Leung
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Acoustic noise generation under plunging breaking waves
Oceanologia, 2013 The paper presents results of investigations performed in a wave channel in order to determine associations between the dissipation of surface wave energy during breaking and acoustic noise emission. The experiments were carried out in fresh water in
Aliaksandr Lisimenka, Zygmunt Klusek
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Surface Acoustic Waves in Thin Films Nanometrology [PDF]
, 2015 Thin films nanometrology is an emerging field in nanoscience as the synthesis, processing and applications of nanostructured thin films require an in-depth knowledge of their elastic constants. The elastic energy of a surface acoustic wave propagating in
BETTUCCI, Andrea
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EPJ Web of Conferences, 2017 This paper presents finite numerical modelling on the cross-sectional region of tapered single mode fiber and graphene-clad tapered fiber. Surface acoustic wave propagation across the tapered surface region on tapered single mode fiber has a high ...
Lee Hui Jing +2 more
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From Microwave Acoustic Filters to Millimeter-Wave Operation and New Applications
IEEE Journal of Microwaves, 2023 This paper reviews the latest developments in microwave acoustic wave devices. After an introduction and brief history of bulk acoustic wave (BAW) and surface acoustic wave (SAW) devices, a review is given for guided SAWs and XBARs - two new technologies,
Amelie Hagelauer +13 more
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