Results 1 to 10 of about 77,806 (312)

Nonclassical Nonlinear Acoustics in Solids: Methods, Applications, and the State of the Art [PDF]

open access: greenAIP Conference Proceedings, 2006
We outline the area of “nonclassical” nonlinear acoustics that deals with media exhibiting anomalously strong elastic nonlinearity, including hysteresis, conditioning, and slow dynamics. The entire range of behaviors we term nonlinear, nonlinear, nonequilibrium dynamics (NND).
Paul A. Johnson
openaire   +3 more sources

Laser excitation of ultrashort acoustic pulses: New possibilities in solid-state spectroscopy, diagnostics of fast processes, and nonlinear acoustics [PDF]

open access: diamondSoviet Physics Uspekhi, 1992
The experimental results in the field of laser generation of acoustic pulses of duration less than 1 ns are reviewed. The various physical mechanisms of optoacoustic conversion are analyzed theoretically. Possibilities are shown for shortening the duration of optoacoustic pulses by increasing the intensity of the laser exposure.
S.A. Akhmanov, V.E. Gusev
  +4 more sources

Ultra-Thin Metasurface-Based Absorber of Low-Frequency Sound With Bandwidth Optimization

open access: yesFrontiers in Materials, 2021
We report, both theoretically and experimentally, a type of ultra-thin metasurface-based low-frequency sound absorber with bandwidth optimization. Such a metasurface unit consists of an ultrathin resonator (thickness∼1/90 wavelength) with a circular hole
Yi-jun Guan   +9 more
doaj   +1 more source

A monolithic three-dimensional thermal convective acoustic vector sensor with acoustic-transparent heat sink [PDF]

open access: yesJASA Express Letters, 2022
An acoustic vector sensor can directly detect acoustic particle velocity based on the measured temperature difference between closely spaced heated wires.
Xiang-Yuan Xu   +8 more
doaj   +1 more source

In-situ, non-destructive acoustic characterization of solid state electrolyte cells [PDF]

open access: yesJournal of Power Sources, 2016
Abstract Solid-state electrolytes such as cubic Li6.25Al0.25La3Zr2O12 (LLZO) can enable solid-state batteries, metallic lithium anodes and higher voltage cathodes. However, the stability of cubic LLZO is affected by current density. In beta alumina solid electrolyte, microstructural failure was caused by Na dendrite penetration, and was shown to be a
Schmidt, Robert D., Sakamoto, Jeffrey
openaire   +1 more source

Broadband Bidirectional and Multi-Channel Unidirectional Acoustic Insulation by Mode-Conversion Phased Units

open access: yesFrontiers in Materials, 2021
The technique of sound insulation has a wide range of potential applications in environment noise control and architectural acoustics. The rapid development of acoustic artificial materials has provided alternative solutions to design sound insulation ...
Jia-he Chen   +10 more
doaj   +1 more source

49th Winter School on Wave and Quantum Acoustics XLVIIIth Winter School on Environmental Acoustics and Vibroacoustics Szczyrk, Poland, February 24–27, 2020

open access: yesArchives of Acoustics, 2020
49th Winter School on Wave and Quantum Acoustics constituted platforms for sharing the results and achievements obtained in different branches of physical acoustics, as molecular acoustics, quantum acoustics, acousto-optics, magnetoacoustics ...
Dariusz Bismor
doaj   +1 more source

Magnetoelectric Properties of Ni-PZT-Ni Heterostructures Obtained by Electrochemical Deposition of Nickel in an External Magnetic Field

open access: yesMagnetochemistry, 2023
This paper studied the influence of external electric and magnetic fields on the magnetoelectric properties of layered structures of metal-piezoelectric-metal. The structures under study had the shape of a square 4 mm wide and were obtained in two steps:
Natalia Poddubnaya   +4 more
doaj   +1 more source

Low-Frequency Dual-Band Sound Absorption by Ultrathin Planar Wall Embedded With Multiple-Cavity Resonators

open access: yesFrontiers in Physics, 2022
We report the numerical and experimental realization of a type of ultrathin planar wall with low-frequency dual-band sound absorption. The proposed planar wall is constructed by a periodic subwavelength unit cell (with a thickness of λ/19) which consists
Yu-wei Xu   +10 more
doaj   +1 more source

Nonlinear waves in a chain of magnetically coupled pendula [PDF]

open access: yes, 2018
A motivation for the study of reduced models like one-dimensional systems in Solid State Physics is the complexity of the full problem. In recent years our group has studied theoretically, numerically and experimentally wave propagation in lattices of ...
Ahmed, Mehem   +6 more
core   +1 more source

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