Results 41 to 50 of about 365,101 (374)

Acoustic iridescence [PDF]

open access: yesThe Journal of the Acoustical Society of America, 2011
An investigation has been undertaken into acoustic iridescence, exploring how a device can be constructed which alter sound waves, in a similar way to structures in nature that act on light to produce optical iridescence. The main construction had many thin perforated sheets spaced half a wavelength apart for a specified design frequency.
openaire   +2 more sources

Acousto-elastic interaction in combustion chambers [PDF]

open access: yes, 2006
This thesis deals with the interaction between combustion, acoustics and vibrations with emphasis on frequencies below 500 Hz. Extensive literature is available on the interaction between combustion and acoustics and much work is also available on the ...
Huls, Rob Alexander
core   +1 more source

Acoustic Measures Capture Speech Dysfunction in Spinocerebellar Ataxia

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Spinocerebellar ataxias (SCA) are hereditary cerebellar degenerative disorders with a common feature of dysarthria, involving impaired phonatory and articulatory control of speech, thereby affecting social communication. In this study, we investigated whether acoustic measures could objectively measure speech dysfunction and identify
Zena Fadel   +5 more
wiley   +1 more source

Building Competitive Direct Acoustics-to-Word Models for English Conversational Speech Recognition [PDF]

open access: yesIEEE International Conference on Acoustics, Speech, and Signal Processing, 2017
Direct acoustics-to-word (A2W) models in the end-to-end paradigm have received increasing attention compared to conventional subword based automatic speech recognition models using phones, characters, or context-dependent hidden Markov model states. This
Kartik Audhkhasi   +4 more
semanticscholar   +1 more source

Chronicle

open access: yesArchives of Acoustics, 2014
1. General Assembly of Delegates of Polish Acoustical Society 2. Dissertation: Determination of the spatial distribution of spectral components of ship's noise [in Polish], 23 December 1998 by Paulina Bittner 3.
Editorial Board Archives of Acoustics
doaj   +4 more sources

Acoustic Emission [PDF]

open access: yes, 2021
AbstractAcoustic emission (AE) is one of the most promising methods for structural health monitoring (SHM) of materials and structures. Because of its passive and non-invasive nature, it can be used during the operation of a structure and supply information that cannot be collected in real time through other techniques. It is based on the recording and
Aggelis, Dimitrios G.   +6 more
openaire   +2 more sources

X‐Ray Tomography Analysis of Damage Mechanisms in Metal Matrix Syntactic Foams During Compression

open access: yesAdvanced Engineering Materials, EarlyView.
In situ synchrotron X‐ray tomography is used to investigate the internal damage mechanisms of AlSi12 metal matrix syntactic foam with ceramic hollow spheres during compressive loading. It is concluded that a homogeneous distribution of the second‐phase filler material results in a sequential collapse in a localized region; this leads to controlled and ...
Indrajeet Tambe   +8 more
wiley   +1 more source

High frequency oscillations of first eigenmodes in axisymmetric shells as the thickness tends to zero [PDF]

open access: yes, 2016
The lowest eigenmode of thin axisymmetric shells is investigated for two physical models (acoustics and elasticity) as the shell thickness (2$\epsilon$) tends to zero.
Chaussade-Beaudouin, Marie   +3 more
core   +5 more sources

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

open access: yesAdvanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm   +5 more
wiley   +1 more source

JOINT CONFERENCE – ACOUSTICS 2018

open access: yesArchives of Acoustics, 2018
The paper contains the abstracts of papers presented during JOINT CONFERENCE – ACOUSTICS 2018: 65th Open Seminar on Acoustics 35th Symposium on Hydroacoustics Polish-German Structured Conference on Acoustics Ustka, Poland, September 11 – 14 ...
Chronicle JOINT CONFERENCE – ACOUSTICS 2018
doaj   +1 more source

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