Results 221 to 230 of about 129,142 (267)

Holograms for acoustics

Nature, 2016
Holographic techniques are fundamental to applications such as volumetric displays, high-density data storage and optical tweezers that require spatial control of intricate optical or acoustic fields within a three-dimensional volume. The basis of holography is spatial storage of the phase and/or amplitude profile of the desired wavefront in a manner ...
Peer Fischer, Peer Fischer, Tian Qiu, Kai Melde, Andrew G. Mark   +4 more
openaire   +4 more sources

The Second Dicova Challenge: Dataset and Performance Analysis for Diagnosis of Covid-19 Using Acoustics

IEEE International Conference on Acoustics, Speech, and Signal Processing, 2021
The Second Diagnosis of COVID-19 using Acoustics (DiCOVA) Challenge aimed at accelerating the research in acoustics based detection of COVID-19, a topic at the intersection of acoustics, signal processing, machine learning, and healthcare.
N. Sharma, Srikanth Raj Chetupalli, Debarpan Bhattacharya, Debottam Dutta, Pravin Mote, Sriram Ganapathy   +5 more
semanticscholar   +1 more source

Acoustic cloaking and transformation acoustics

Journal of Physics D: Applied Physics, 2010
In this review, we give a brief introduction to the application of the new technique of transformation acoustics, which draws on a correspondence between coordinate transformation and material properties. The technique is formulated for both acoustic waves and linear liquid surface waves.
Che Ting Chan, Huanyang Chen, Huanyang Chen   +2 more
openaire   +3 more sources

Fundamentals of acoustics

, 1950
Fundamentals of Vibration. Transverse Motion: The Vibrating String. Vibrations of Bars. The Two--Dimensional Wave Equation: Vibrations of Membranes and Plates. The Acoustic Wave Equation and Simple Solutions. Reflection and Transmission.
L. E. Kinsler, A. R. Frey
semanticscholar   +1 more source

Dispersion-relation-preserving finite difference schemes for computational acoustics

, 1993
Acoustics problems are governed by the linearized Euler equations. According to wave propagation theory, the number of wave modes and their wave propagation characteristics are all encoded in the dispersion relations of the governing equations.
C. Tam, J. Webb
semanticscholar   +1 more source

Acoustics

Silent Cinema, 2019
Similarities and ...
Balcerzak Andrzej, Kamisiński Tadeusz, Rubacha Jarosław   +2 more
semanticscholar   +1 more source

Redshift of acoustic waves in acoustic streaming

Physical Review E, 2003
Redshift, namely, the frequency decline in the frequency spectrum of an acoustic wave in water, was observed by measuring the frequency spectrum of acoustic streaming in a standing wave field. We desire that relations of the energy epsilon and momentum mu of acoustic waves analogous to those under quantum conditions hold, that is, epsilon =n(p)h(omega),
Toshitaka Fujii, Masanori Sato, Tsuyoshi Matsuo   +2 more
openaire   +3 more sources

Spin–phonon interactions in silicon carbide addressed by Gaussian acoustics

Nature Physics, 2018
Hybrid spin–mechanical systems provide a platform for integrating quantum registers and transducers. Efficient creation and control of such systems require a comprehensive understanding of the individual spin and mechanical components as well as their ...
S. Whiteley, G. Wolfowicz, G. Wolfowicz, Christopher P. Anderson, A. Bourassa, He Ma, M. Ye, G. Koolstra, K. Satzinger, K. Satzinger, M. Holt, F. J. Heremans, F. J. Heremans, A. Cleland, A. Cleland, D. Schuster, Giulia Galli, Giulia Galli, D. Awschalom, D. Awschalom   +19 more
semanticscholar   +1 more source

Acoustical barrier with acoustical seal

The Journal of the Acoustical Society of America, 1994
An acoustical barrier, an aperture and a pipe or cable passing therethrough wherein the aperture has a number of radially extending slits which define a plurality of radial sectors which also extend from the aperture. One or more grooves are arranged in the sectors concentrically about the aperture to increase the radial flexibility of the sectors so ...
openaire   +2 more sources

ACOUSTIC IMAGINATION AND ACOUSTIC HALLUCINATION

Archives of Neurology And Psychiatry, 1935
Acoustic imagination has always attracted the attention of psychologists. Charcot distinguished three types of imagination in human beings: the optic, the auditory and the motor. It is generally supposed that the acoustic and the motor types are closely related to each other. Baerwald,1in a study of image types, mentioned acoustic imagination.
Sam Parker, Paul Schilder
openaire   +2 more sources