Results 31 to 40 of about 5,705,389 (145)
Reflection of an acoustic line source by an impedance surface with uniform flow
, 2014 An exact analytic solution is derived for the 2D acoustic pressure field generated by a time-harmonic line mass source located above an impedance surface with uniform grazing flow. Closed-form asymptotic solutions in the far-field are also provided.
Gabard, Gwénaël +3 more
core +1 more source
Simultaneous Guidance of Surface Acoustic and Surface Optical Waves in Phoxonic Crystal Slabs
Crystals, 2017 Phoxonic crystals, which exhibit simultaneous phononic and photonic bandgaps, are promising artificial materials for optomechanical and acousto-optical devices.
Tian-Xue Ma +2 more
doaj +1 more source
Large-scale numerical modeling of hydro-acoustic waves generated by tsunamigenic earthquakes [PDF]
Natural Hazards and Earth System Sciences, 2015 Tsunamigenic fast movements of the seabed generate pressure waves in weakly compressible seawater, namely hydro-acoustic waves, which travel at the sound celerity in water (about 1500 m s−1).
C. Cecioni +3 more
doaj +1 more source
Modulation of Surface Elastic Waves and Surface Acoustic Waves by Acoustic–Elastic Metamaterials
CrystalsMetamaterials enable the modulation of elastic waves or acoustic waves in unprecedented ways and have a wide range of potential applications. This paper achieves the simultaneous manipulation of surface elastic waves (SEWs) and surface acoustic waves ...
Chang Fu, Tian-Xue Ma
doaj +1 more source
Frequency dependence of acoustic waves in marine sediments [PDF]
, 2002 In situ techniques provide the most reliable method of examining the geoacoustical properties of marine sediments. In the past, individual in situ surveys have only been able to examine compressional waves over a maximum frequency range of 100 Hz to 50 ...
Robb, G. +7 more
core +1 more source
Ion-acoustic surface waves on a dielectric-dusty plasma interface
, 1998 The theory of ion-acoustic surface wave propagation on the interface between a dusty plasma and a dielectric is presented. Both the constant and variable dust-charge cases are considered.
Ostrikov, K., Yu, M.Y.
core +1 more source
AIP Advances, 2021 The propagation of surface acoustic waves in two types of tunable magneto-electro-elastic phononic crystal structures is investigated, for which Terfenol-D rods are vertically deposited on the piezoelectric substrate or embedded in the piezoelectric ...
Jianying Hu +4 more
doaj +1 more source
Theoretical mass sensitivity of Love wave and layer guided acoustic plate mode sensors [PDF]
, 2002 A model for the mass sensitivity of Love wave and layer guided shear horizontal acoustic plate mode (SH–APM) sensors is developed by considering the propagation of shear horizontally polarized acoustic waves in a three layer system. A dispersion equation
Newton, Michael +8 more
core +1 more source
PASSIV WIRELESS CURENT SENSOR FOR THREE-PHASE CIRCUTS
Вестник Северо-Кавказского федерального университета, 2022 Studies on passive wireless current sensors for three-phase circuits based on delay lines on surface acoustic waves are presented. The design of a passive wireless sensor on surface acoustic waves is proposed, in which there is a strong dependence of the
V. Kislitsyn +4 more
doaj
Broadband reflected wavefronts manipulation using structured phase gradient metasurfaces
AIP Advances, 2016 Acoustic metasurface (AMS) is a good candidate to manipulate acoustic waves due to special acoustic performs that cannot be realized by traditional materials. In this paper, we design the AMS by using circular-holed cubic arrays.
Xiao-Peng Wang +4 more
doaj +1 more source