Results 11 to 20 of about 299,182 (254)
Quantum Acoustics with Surface Acoustic Waves [PDF]
It has recently been demonstrated that surface acoustic waves (SAWs) can interact with superconducting qubits at the quantum level. SAW resonators in the GHz frequency range have also been found to have low loss at temperatures compatible with ...
A Wallraff+48 more
core +4 more sources
The manipulation of acoustic wave propagation in fluids has numerous applications, including some in everyday life. Acoustic technologies frequently develop in tandem with optics, using shared concepts such as waveguiding and metamedia. It is thus noteworthy that an entirely novel class of electromagnetic waves, known as topological edge states, has ...
Yang, Zhaoju+6 more
openaire +6 more sources
Acknowledgement to Reviewers of Acoustics in 2019
The editorial team greatly appreciates the reviewers who have dedicated their considerable time and expertise to the journal’s rigorous editorial process over the past 12 months, regardless of whether the papers are finally published or not [...]
Acoustics Editorial Office
doaj +1 more source
Digital beamforming techniques find wide applications in the field of underwater acoustic array signal processing. However, their azimuthal resolution has long been constrained by the Rayleigh limit, consequently limiting their detection performance.
Fan Yin+6 more
doaj +1 more source
Acoustical Modeling in Architectural Acoustics [PDF]
It is imperative to investigate the acoustical properties of roms with the aid of models prior to construction. Two sound sources have been developed to facilitate these investigations. An air jet utilizing four intersection jets provides a nondirectional random noise, over a frequency range of 2400 cps to over 100 kcps for the study of the steady ...
Paul S. Veneklasen+4 more
openalex +3 more sources
A room-temperature ultrasonic hydrogen sensor based on a sensitive layer of reduced graphene oxide
It is challenging to increase the sensitivity of a hydrogen sensor operating at room temperature due to weak sorption and tiny mass of hydrogen. In this work, an ultrasonic sensor is presented for detecting hydrogen, which is composed of a 128° YX-LiNbO3
Xue-Yu Zhang+5 more
doaj +1 more source
Weak Underwater Acoustic Target Detection and Enhancement with BM-SEED Algorithm
Bearing time record (BTR) is widely used in the field of passive sonar information processing for target detecting and tracking. One of its challenges is to obtain high-resolution beamforming power spectral to facilitate the directions estimating of ...
Fan Yin+6 more
doaj +1 more source
Acoustic radiation force on small spheres due to transient acoustic fields [PDF]
Acoustic radiation force is a net force experienced by an object under the action of an acoustic wave. Most theoretical models require the acoustic wave to be periodic, if not purely monofrequency, and are therefore irrelevant for the study of acoustic radiation force due to acoustic pulses.
arxiv +1 more source
A low-frequency multiple-band sound insulator without blocking ventilation along a pipe
It is challenging to insulate sound transmission in low frequency-bands without blocking the air flow in a pipe. In this work, a small and light membrane-based cubic sound insulator is created to block acoustic waves in multiple low frequency-bands from ...
Zi-jian Zhou+7 more
doaj +1 more source
Multifunctional acoustic holography based on compact acoustic geometric-phase meta-array [PDF]
Optical geometric-phase metasurface provides a robust and efficient means for light control by simply manipulating the spatial orientations of the in-plane anisotropic meta-atoms, where polarization conversion plays a vital role. However, the concept of acoustic geometric-phase modulation for acoustic field control remains unexplored because airborne ...
arxiv +1 more source