Results 71 to 80 of about 299,182 (254)
A ray mode parabolic equation for shallow water acoustics propagation problems
, 2014 Ray mode parabolic equations which are suitable for shallow water acoustics propagation problems are derived by the multiple-scale method.Comment: 7 pp., 0 ...
Trofimov, M. Yu., Zakharenko, A. D.
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Differential Geometry applied to Acoustics : Non Linear Propagation in Reissner Beams
, 2013 Although acoustics is one of the disciplines of mechanics, its "geometrization" is still limited to a few areas. As shown in the work on nonlinear propagation in Reissner beams, it seems that an interpretation of the theories of acoustics through the ...
A. Goriely +18 more
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Acoustics of tachyon Fermi gas
, 2011 We consider a Fermi gas of free tachyons as a continuous medium and find whether it satisfies the causality condition. There is no stable tachyon matter with the particle density below critical value $n_T$ and the Fermi momentum $k_FE$ is not forbidden ...
Ernst Trojan +3 more
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Non-Riemannian geometry of turbulent acoustic flows and analog gravity [PDF]
arXiv, 2004 Non-Riemannian geometry of acoustic non-relativistic turbulent flows is irrotationally perturbed generating a acoustic geometry model with acoustic metric and acoustic Cartan contortion. The contortion term is due to nonlinearities in the turbulent fluid. The acoustic curvature and acoustic contortion are given by Dirac delta distributions.
arxiv
Modelling Underwater Acoustic Propagation using One-way Wave Equations [PDF]
arXiv, 2022 The primary contribution of this paper is to characterize the propagation of acoustic signal carrying information through any medium and the interaction of the travelling acoustic signal with the surrounding medium. We will use the concept of damped harmonic oscillator to model the medium and Milne's oscillator technique to map the interaction of the ...
arxiv
Applied SciencesSparse Bayesian learning (SBL) is widely used for sound field reconstruction (SFR). Among various SBL approaches, pattern-coupled SBL has been demonstrated to achieve superior performance.
Simiao Chen +4 more
doaj +1 more source
Buildings, 2014 For architects, real-time 3D visual rendering of CAD-models is a valuable tool. The architect usually perceives the visual appearance of the building interior in a natural and realistic way during the design process.
Sönke Pelzer +3 more
doaj +1 more source
The Acoustics of the Choir in Spanish Cathedrals [PDF]
, 2018 One of the most significant enclosures in worship spaces is that of the choir. Generally, from a historical point of view, the choir is a semi-enclosed and privileged area reserved for the clergy, whose position and configuration gives it a private ...
Alonso Carrillo, Alicia +2 more
core
Direct Acoustics-to-Word Models for English Conversational Speech Recognition
, 2017 Recent work on end-to-end automatic speech recognition (ASR) has shown that the connectionist temporal classification (CTC) loss can be used to convert acoustics to phone or character sequences.
Audhkhasi, Kartik +4 more
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Analyzing the Nonlinear Performance of Miniature Loudspeakers in Consideration of the Creep Effect
Applied SciencesMiniature loudspeakers exhibit pronounced nonlinear characteristics due to physical size limitations and the demand for sufficient sound pressure.
Simiao Chen +4 more
doaj +1 more source