Results 1 to 10 of about 3,311 (256)

Establishing the adequacy of recorded acoustic surveys of forest bird assemblages [PDF]

open access: yesAvian Conservation and Ecology, 2020
The use of programmable acoustic recorders to survey forest birds is increasing owing to a range of advantages over surveys conducted by human observers.
Michael J. M. Franklin   +3 more
doaj   +7 more sources

Spatial Hedonic Pricing Models for Testing the Adequacy of Acoustic Areas in Madrid, Spain [PDF]

open access: yesInvestigaciones Regionales - Journal of Regional Research, 2011
El ruido derivado del tráfico es una de las principales preocupaciones de las grandes ciudades. La mayoría de ellas han clasificado su territorio en áreas acústicas y han elaborado mapas estratégicos de ruido. A partir de ambas fuentes hemos creado siete
José-María Montero   +2 more
doaj   +4 more sources

The service life increasing of bushings by electro-acoustic spraying [PDF]

open access: yesE3S Web of Conferences, 2021
The control of obtaining the predicted physico-mechanical properties of protective coatings of machine parts in a complex acoustic field by the method of electroacoustic spraying is carried out through the use of highly concentrated sources of electrical
Kochetov Andrei   +4 more
doaj   +2 more sources

Increasing the technological process’ energy efficiency of the of applying multifunctional wear-and-heat-resistant protective coatings by electro-acoustic spraying [PDF]

open access: yesE3S Web of Conferences, 2021
The article is devoted to measures improving the energy efficiency of the technological process of applying wear-resistant multifunctional composite protective coatings by the method of electroacoustic spraying.
Kochetov Andrei   +3 more
doaj   +2 more sources

Spanish is better than English for discriminating Portuguese vowels: acoustic similarity versus vowel inventory

open access: yesFrontiers in Psychology, 2014
Second language (L2) learners often struggle to distinguish sound contrasts that are not present in their native language (L1). Models of non-native and L2 sound perception claim that perceptual similarity between L1 and L2 sound contrasts correctly ...
Jaydene eElvin   +2 more
doaj   +2 more sources

On the adequacy of linear acoustics for prediction of acoustic pressure transients created by laser beams moving over water surfaces at sonic speeds [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1986
Previous discussions of laser-generated sound, particularly with reference to themoacoustic effects, are often based on linear equations. However, seemingly plausible arguments can be developed to the effect that the peak acoustic pressure predicted by a linear theory will grow without bound when the sound is generated by a laser beam that travels for ...
Allan D. Pierce, Yves H. Berthelot
openaire   +1 more source

Investigation of adequacy of the acoustical field model

open access: yesMechanics, 2009
This work used the 2D model to analyze the pos-sibility to model several excitation sources acting at the same time in different harmonic frequencies. The obtained results of the theoretical experiment were compared to the results of practical experiment. The adequacy of the acous-tic field’s model formed on the basis of the finite elements to the real
Mikalauskas, R.   +4 more
openaire   +3 more sources

Caracterización y comparación del hábitat acústico de dos áreas en Tafí Viejo, Tucumán

open access: yesArea
El ruido urbano es uno de los principales contaminantes que deterioran la calidad ambiental, con efectos negativos sobre la salud auditiva, física y mental de los seres vivos.
Isabel Juarez   +3 more
doaj   +5 more sources

Application of the extended poroacoustic model of marine sediments to the calculation of the sound reflection coefficient from the seabed [PDF]

open access: yesE3S Web of Conferences, 2020
The article consider the application of the extended poroacoustic theory of the propagation of stress waves in marine sediments to the calculation of the coefficient of sound reflection from the seabed.
Lisyutin V, Yaroshenko A, Lastovenko O
doaj   +1 more source

Optimization of the Equivalent Source Configuration for the Equivalent Source Method

open access: yesJournal of Marine Science and Engineering, 2021
The equivalent source method is widely applied to study structural acoustic radiation in an underwater environment. However, there is still uncertainty in arranging the equivalent source, and the current mainstream configuration method needs a large ...
Lanyue Zhang   +4 more
doaj   +1 more source

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