Results 21 to 30 of about 1,599,200 (292)
Diesel engine fuel injection monitoring using acoustic measurements and independent component analysis [PDF]
, 2010 Air-borne acoustic based condition monitoring is a promising technique because of its intrusive nature and the rich information contained within the acoustic signals including all sources.
Gu, Fengshou +7 more
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Numerical Simulation Study of Aerodynamic Noise in High-Rise Buildings
Applied Sciences, 2022 In order to study the aerodynamic noise on the surfaces of high-rise buildings under the action of strong winds, this paper numerically simulated the sound pressure field on the surface of a high-rise building using the large-eddy simulation method ...
Zhengnong Li, Jianan Li
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Research of multiplicative noise reduction method for acoustic emission signal
Gong-kuang zidonghua, 2014 Based on the features of acoustic emission signal, the paper researched noise reduction methods of adaptive filters and wavelet decomposition fit acoustic emission signal with multiplicative noise. It compared simulation results of noise reduction of the
MA Xiaoli +3 more
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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
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A Study of Sound Source Characteristics in Active Noise Control and Fault Diagnosis [PDF]
Active noise control (ANC) is an effective technique used to reduce noise levels at the controlled points by introducing a cancellation sound wave into the primary acoustic field.
Gu, Fengshou +3 more
core +4 more sources
Acta Acustica, 2022 The main acoustic noise source of helicopters is supposed to be the rotor blades, but the scattering effect of the helicopter fuselage sometimes cannot be ignored.
Wang Zeyang, Huang Jun, Yi Mingxu
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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. +7 more
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Journal of Marine Science and EngineeringBiogenic reefs support marine biodiversity and play a key role in a healthy marine environment. Protecting and enhancing reef-building species, such as Sabellaria spinulosa, require mapping and monitoring strategies.
Timo Constantin Gaida +2 more
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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 +32 more
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Applied SciencesParticle damping technology is applied in vibration and noise reduction because of its good broadband vibration reduction effect. The energy transfer and loss between particles are keys to the role of damping.
Shengwu Zhang +5 more
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