Results 11 to 20 of about 4,751 (162)

Design of interdigitated transducers for acoustofluidic applications

open access: yesNanotechnology and Precision Engineering, 2022
Interdigitated transducers (IDTs) were originally designed as delay lines for radars. Half a century later, they have found new life as actuators for microfluidic systems.
Shuren Song   +3 more
doaj   +1 more source

Contact Nonlinear Acoustic Diode [PDF]

open access: yesScientific Reports, 2020
AbstractNonlinear implementations of acoustic diodes are inherently nonreciprocal and have received continuous attention from the beginning of the research boom for acoustic diodes. However, all the reported nonlinear schemes usually have the shortcomings such as low transmission ratio, action threshold, lack of stability and cumbersome setups.
Yao Huang   +5 more
openaire   +2 more sources

Nonlinear acoustics [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1965
Nonlinear acoustics (NLA), within the framework of physical acoustics, has come of age over the past 30 years, yet new phenomena continue to be observed, so that the subject is not yet exhausted. The session will begin with a review of the mathematics of describing NLA (part 1).
openaire   +1 more source

Normal Mode Analysis of the Nonlinear Acoustic Wave Equation

open access: yesWalailak Journal of Science and Technology, 2013
Second-harmonic generation in non-linear media is investigated. A normal mode analysis is proposed based on the Westervelt equation under the second-order approximation in nonlinear acoustics.
Mohamed Ibrahim Ahmed OTHMAN   +2 more
doaj   +1 more source

Asymptotical approximation of one dimensional gas dynamics problem

open access: yesLietuvos Matematikos Rinkinys, 2013
We analyze nonlinear one dimensional gas dynamics system. The constructed asymptotic approximation which describes periodic acoustics waves resonant interaction is uniformly valid in the long time interval.
Aleksandras Krylovas   +1 more
doaj   +1 more source

Forward propagation of acoustic pressure pulses in 3D soft biological tissue [PDF]

open access: yesModeling, Identification and Control, 2006
A simulation method for forward propagation of acoustic pressure pulses in a medium with three-dimensional (3D) spatially-variable acoustic properties is presented.
Trond Varslot, Svein-Erik Måsøy
doaj   +1 more source

Nonlinear Thermotics:Designing Thermal Metamaterials with Temperature Response

open access: yesNantong Daxue xuebao. Ziran kexue ban, 2021
Both nonlinear phenomenon and heat transfer are important topics in physics. However, there has not been a mature subject called "nonlinear thermotics" like its counterpart in optics or acoustics.
DAI Gaole, HUANG Jiping
doaj   +1 more source

Exploring the Parametric Effect in Nonlinear Acoustic Waves

open access: yesIEEE Access, 2023
Nonlinear acoustics is a critical area of study with practical applications in fields such as underwater communications, medical imaging, non-destructive testing, and sonar.
Maria Campo-Valera   +4 more
doaj   +1 more source

Theory, Analysis, and Applications of the Entropic Lattice Boltzmann Model for Compressible Flows

open access: yesEntropy, 2020
The entropic lattice Boltzmann method for the simulation of compressible flows is studied in detail and new opportunities for extending operating range are explored.
Nicolò Frapolli   +2 more
doaj   +1 more source

Biomechanical Sensing Using Gas Bubbles Oscillations in Liquids and Adjacent Technologies: Theory and Practical Applications

open access: yesBiosensors, 2022
Gas bubbles present in liquids underpin many natural phenomena and human-developed technologies that improve the quality of life. Since all living organisms are predominantly made of water, they may also contain bubbles—introduced both naturally and ...
Ivan S. Maksymov   +2 more
doaj   +1 more source

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