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Recent Trends in Porous Sound-Absorbing Materials

ARENAS, Jorge P ; CROCKER, Malcolm J

Sound & vibration, 2010-07, Vol.44 (7), p.12-18

Cleveland, OH: Acoustical Publications

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Título:
Recent Trends in Porous Sound-Absorbing Materials
Autor: ARENAS, Jorge P ; CROCKER, Malcolm J
Assuntos: Absorption ; Acoustic absorption ; Acoustics ; Composite materials ; Constituents ; Enclosures ; Exact sciences and technology ; Fibers ; Fundamental areas of phenomenology (including applications) ; Greenhouse gases ; Industrial plant emissions ; Machinery ; Manufacturing ; Noise ; Noise control ; Noise: its effects and control ; Physics ; Porous materials ; Powder metallurgy ; Power plants ; Reduction ; Sound ; Sound waves ; Structural acoustics and vibration ; Technological change ; Vibration
É parte de: Sound & vibration, 2010-07, Vol.44 (7), p.12-18
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Sound-absorbing materials absorb most of the sound energy striking them, making them very useful for the control of noise. They are used in a variety of locations - close to sources of noise, in various paths, and sometimes close to receivers. Although all materials absorb some incident sound, the term "acoustical material" has been primarily applied to those materials that have been produced for the specific purpose of providing high values of absorption. The major uses of absorbing materials are almost invariably found to include the reduction of reverberant sound pressure levels and, consequently, the reduction of the reverberation time in enclosures, or rooms. A wide range of sound-absorbing materials exist. In the 1970s, public health concerns helped change the main constituents of sound-absorbing materials from asbestos-based materials to new synthetic fibers. Although, these new fibers are much safer for human health, more recently, issues related to global warming may increase the use of natural fibers instead of synthetic ones. [PUBLICATION ABSTRACT]
Editor: Cleveland, OH: Acoustical Publications
Idioma: Inglês

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Recent Trends in Porous Sound-Absorbing Materials

ARENAS, Jorge P ; CROCKER, Malcolm J

Cleveland, OH: Acoustical Publications

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