Results 31 to 40 of about 3,664,430 (285)

Vocal behavior of the endangered splendid toadfish and potential masking by anthropogenic noise

Conservation Science and Practice, 2021
Vessel‐related noise is a potential stressor for coral reef fauna. The Parque Nacional Arrecifes de Cozumel (PNAC) is a Mexican Marine Protected Area that is exposed to pervasive vessel traffic.
Cynthia D. Pyć, Jonathan Vallarta, Aaron N. Rice, David G. Zeddies, Emily E. Maxner, Samuel L. Denes   +5 more
doaj   +1 more source

Computation of Trailing Edge Noise with a Discontinuous Galerkin Method [PDF]

, 2010
Trailing edge noise of a semi-infinite, thin, flat plate situated in low Mach number flow is computed in two spatial dimensions. The Acoustic Perturbation Equations (APE), which are employed as governing equations, are discretized via a Discontinuous ...
M. Bauer, Bauer, Marcus
core   +1 more source

Acoustic Array Development for Wind Turbine Noise Characterization [PDF]

, 2013
This report discusses the design and use of a multi-arm, logarithmic spiral acoustic array by the National Renewable Energy Laboratory (NREL) for measurement and characterization of wind turbine-generated noise. The array was developed in collaboration with a team from the University of Colorado Boulder.
Buck, S., Roadman, J., Moriarty, P., Palo, S.   +3 more
openaire   +2 more sources

Aero-Acoustic assessment of installed propellers [PDF]

INCAS Bulletin, 2015
The volume of general aviation transport is increasing and consequently this gives rise to the need for reducing noise levels while improving or at least maintaining the same level of aerodynamic performance.
Marius Gabriel COJOCARU, Mihai Leonida NICULESCU, Mihai Victor PRICOP   +2 more
doaj   +1 more source

Acoustic noise levels and field distribution in 7 T MRI scanners

Frontiers in Physics, 2023
Acoustic noise production during Magnetic Resonance Imaging is an important source of patient discomfort and leads to verbal communication problems, difficulties in sedation, and hearing impairment.
Louena Shtrepi, Vinicius F. Dal Poggetto, Vinicius F. Dal Poggetto, Clement Durochat, Marc Dubois, David Bendahan, Fabio Nistri, Marco Miniaci, Nicola Maria Pugno, Nicola Maria Pugno, Federico Bosia   +10 more
doaj   +1 more source

Panel of resonators with variable resonance frequency for noise control [PDF]

, 2012
The article focuses on acoustic resonators made of perforated sheets bonded onto honeycomb cavities. This kind of resonators can be used in adverse conditions such as high temperature, dirt and mechanical constraints. For all these reasons, they are, for
Pommier-Budinger, V., Pommier-Budinger, Valérie, Valerie Pommier-Budinger, Olivier Cherrier, Cherrier, Olivier, Simon, Frank, Simon, F., Frank Simon   +7 more
core   +1 more source

Acoustic characterization of two atmospheric towing tanks: The case of the UPM-CEHINAV and INTA-CEHIPAR

Results in Engineering
The increasing concern over underwater radiated noise (URN) from vessels and offshore wind and tidal turbines necessitates accurate experimental methods for acoustic characterization.
Laura Botero-Bolívar, Adrian Portillo-Juan, Ángel Sanz Ortega, Guillermo Gomez Prada, Adelaida Garcia-Magariño Garcia, Esteban Ferrer   +5 more
doaj   +1 more source

Design and acoustic characterization of a test bench for aeroacoustic studies under controlled turbulent flow

MethodsX
Aeroacoustic phenomena generated by wind–structure interaction have gained increasing relevance due to the widespread use of lightweight and permeable façade elements.
Pablo Gianoli Kovar, José Cataldo Ottieri   +1 more
doaj   +1 more source

The Performance Characterization and Optimization of Fiber-Optic Acoustic Pressure Sensors Based on the MOEMS Sensitized Structure

Sensors, 2023
In order to investigate the factors affecting the acoustic performance of the extrinsic Fabry–Perot interferometer (EFPI) fiber-optic acoustic pressure sensor and to effectively improve its detection capability, this paper enhances the sensor’s detection
Ruling Zhou, Chenggang Guan, Hui Lv, Shasha Li, Puchu Lv, Haixin Qin, Wenxiu Chu, Yikai Zhou, Yihao Zhang, Xiaoqiang Li   +9 more
doaj   +1 more source

Vessel noise affects beaked whale behavior : results of a dedicated acoustic response study [PDF]

, 2012
© The Author(s), 2012. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in PLoS ONE 7 (2012): e42535, doi:10.1371/journal.pone.0042535.Some beaked whale species are ...
Quick, Nicola, Di Marzio Nancy, Boyd, Ian L., Moretti David, Quick, Nicola Jane, Pirotta, Enrico, Peter Tyack, Moretti, David, Tyack, Peter L., Pirotta Enrico, DiMarzio, Nancy A., Enrico Pirotta, David Moretti, Tyack Peter, Milor, Rachel, Nancy Di Marzio, Boyd Ian, Milor Rachael, Quick Nicola, Nicola Quick, Hastie, Gordon, Ian Boyd, Tyack, Peter Lloyd, Boyd, Ian, Hastie Gordon, Milor, Rachael, Rachael Milor, Hastie, Gordon Drummond, Moretti, David J., Dimarzio, Nancy, Gordon Hastie, Hastie, Gordon Drummond; id_orcid, Tyack, Peter Lloyd; id_orcid   +32 more
core   +1 more source