Results 111 to 120 of about 8,993,179 (354)

Influence of Dolphin-Watching Tourism Vessels on the Whistle Emission Pattern of Common Dolphins and Bottlenose Dolphins

open access: yesOceans
Recent years have seen a notable rise in dolphin-watching boat activities along the Algarve coast in Portugal, potentially affecting the common dolphin (Delphinus delphis) and bottlenose dolphin (Tursiops truncatus) local populations. This study examines
Ana A. Silva   +4 more
doaj   +1 more source

The Acoustic Cue of Fear: Investigation of Acoustic Parameters of Speech Containing Fear

open access: yesArchives of Acoustics, 2018
Speech emotion recognition is an important part of human-machine interaction studies. The acoustic analysis method is used for emotion recognition through speech. An emotion does not cause changes on all acoustic parameters.
Turgut ÖZSEVEN
doaj   +1 more source

Acoustic emission signal analysis

open access: yes, 1982
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.An extension of acoustic emission technology was made which permits identification of probable source mechanisms for signals emitted during the failure of ...
Carlyle, John Michael
core  

Relying on critical articulators to estimate vocal tract spectra in an articulatory-acoustic database [PDF]

open access: yes, 2010
We present a new phone-dependent feature weighting scheme that can be used to map articulatory configurations (e.g. EMA) onto vocal tract spectra (e.g. MFCC) through table lookup.
Felps, Daniel   +5 more
core  

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

open access: yesAdvanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine   +5 more
wiley   +1 more source

Framework for Classification of Fattening Pig Vocalizations in a Conventional Farm with High Relevance for Practical Application

open access: yesAnimals
The vocal repertoire of the domestic pig (Sus scrofa domesticus) was examined in this study under conventional housing conditions. Therefore, direct behavior-associated vocalizations of fattening pigs were recorded and assigned to behavioral categories ...
Thies J. Nicolaisen   +3 more
doaj   +1 more source

The Geneva Minimalistic Acoustic Parameter Set (GeMAPS) for Voice Research and Affective Computing

open access: yesIEEE Transactions on Affective Computing, 2016
Work on voice sciences over recent decades has led to a proliferation of acoustic parameters that are used quite selectively and are not always extracted in a similar fashion.
F. Eyben   +10 more
semanticscholar   +1 more source

Study of Acoustic Parameters of Audible and Visual Warning Devices Used by the Police of the Czech Republic

open access: yes, 2012
In the article, the authors are concerned with acoustic parameters of audible and visual warning devices used by the Police of the Czech Republic. The objective of the article is, in context with the fundamental rules of sound and its propagation in ...
Svetla Fiserova, Martin Hrinko
core   +1 more source

Observations of changes in acoustic emission waveform for varying seeded defect sizes in a rolling element bearing [PDF]

open access: yes, 2009
The investigation reported in this paper was centered on the application of the acoustic emissions (AE) technology for characterising the defect sizes on a radially loaded bearing.
Mba, David   +2 more
core   +1 more source

Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration

open access: yesAdvanced Materials, EarlyView.
A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang   +7 more
wiley   +1 more source

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