Results 61 to 70 of about 3,850 (165)
Wavefront manipulation by acoustic metasurfaces: from physics and applications
Nanophotonics, 2018 Molding the wavefront of acoustic waves into the desired shape is of paramount significance in acoustics, which however are usually constrained by the acoustical response of naturally available materials.
Liang Bin +2 more
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Acoustic absorption of structural membranes
, 2021 A series of tests have been carried out to measure the absorption coefficient of structural membranes as well as some combinations used to improve ...
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The Acoustic Characterization of Broom Fibers
Journal of Natural Fibers, 2017 Natural materials are becoming a valid alternative to traditional synthetic ones for sound absorption applications. In this paper, the acoustic properties of broom fibers are reported and discussed.
Umberto Berardi +2 more
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Utilizing Agricultural Waste Materials for the Development of Sustainable Sound Absorption Materials [PDF]
Nature Environment and Pollution TechnologyEnvironmental pollution is escalating due to inadequate waste management, with the open burning of agricultural waste being a significant contributor. This process releases various harmful gases into the environment.
Venkatesan B., Kannan V., Raja Priya P. and Karthiga Shenbagam N
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Sound Diffusers with Fabric Covering
Archives of Acoustics, 2013 Fabric covering is often used by designers, as it can easily mask acoustic structures that do not match an interior. However, in the case of sound diffusers based on change in the phase of the reflected wave, the use of fabric covering is not without ...
Tadeusz KAMISIŃSKI +4 more
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The Effect of Geometrical and Material Modification of Sound Diffusers on Their Acoustic Parameters
Archives of Acoustics, 2013 Sound diffusers, in particular those based on changes in the phase of the reflected wave (Schroeder diffusers), have recently gained greatly in popularity in acoustics as an effective means to eliminate defects and improve the acoustic performance of ...
Adam PILCH, Tadeusz KAMISIŃSKI
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Granular Pumice Stone: A Natural Double-Porosity Sound-Absorbing Material
BuildingsPumice forms when a volcanic explosion ejects highly pressurized, superheated rock, rapidly cooling and depressurizing, resulting in a porous structure.
Jorge P. Arenas +3 more
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Acoustical Absorption and Critical Thickness
, 2001 Peer ...
Pfretzschner, Jaime +1 more
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Modelling of Green function in a rectangular room based upon the geometrical-filtration model
Archives of Acoustics, 2014 Significant problem in room acoustic is evaluating an acoustic quality of projected and modernized rooms. Estimation of room impulse response giving posibility to evaluate the subjective and objective room acoustic properties and hence to run the room ...
R. Marczuk, L. Majkut
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Scientific ReportsUrban noise pollution has emerged as a critical environmental issue, driving demand for high-performance cementitious materials with broadband sound absorption capabilities.
Zhenhua Hou +6 more
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