Results 21 to 30 of about 16,946 (263)
Microsystems & Nanoengineering, 2021 Acoustic wave resonators are promising candidates for gravimetric biosensing. However, they generally suffer from strong acoustic radiation in liquid, which limits their quality factor and increases their frequency noise.
Feng Gao +4 more
doaj +1 more source
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
doaj +1 more source
Photospheric high-frequency acoustic power excess in sunspot umbra: signature of magneto-acoustic modes [PDF]
, 2013 We present observational evidence for the presence of MHD (magnetohydrodynamic) waves in the solar photosphere deduced from SOHO/MDI (Solar and Heliospheric Observatory/Michelson Doppler Imager) Dopplergram velocity observations.
Shelyag, S. +14 more
core +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Electrical control of surface acoustic waves
Nature Electronics, 2022 Acoustic waves at microwave frequencies have been widely used in wireless communication and recently emerged as versatile information carriers in quantum applications. However, most acoustic devices are passive components, and dynamic control of acoustic waves in a low-loss and scalable manner remains an outstanding challenge, which hinders the ...
Linbo Shao +9 more
openaire +3 more sources
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
doaj +1 more source
Experiments on wave turbulence : the evolution and growth of second sound acoustic turbulence in superfluid 4He confirm self-similarity. [PDF]
, 2010 We report our experiments on the formation of second sound acoustic turbulence in superfluid 4He. The initial growth in spectral amplitude follows power laws that steepen rapidly with increasing harmonic number n, corresponding to a propagating front in ...
P V E McClintock +9 more
core +1 more source