Results 31 to 40 of about 2,523,561 (213)

Improved low-frequency sound absorption of porous silicone rubber resonance sheet with periodic cavities

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2022
Since the development of advanced sound absorption material is highly critical in noise control applications, anechoic coatings, and acoustic metamaterials, both fabrication technology and structure design are significant in the achievement of broadband ...
Longgui Peng   +4 more
doaj   +1 more source

Nonlocal acoustic metasurface for ultrabroadband sound absorption

open access: yesPhysical review B, 2021
Classical meta-absorber designs usually have a tradeoff between bandwidth, efficiency, and thickness. Here, we introduce the concept of a nonlocal acoustic metasurface absorber by using a bridge structure connecting resonating unit cells to improve the ...
Yifan Zhu   +5 more
semanticscholar   +1 more source

Study on Sound Absorption Properties of Polyvinyl Chloride (PVC) Film Multicavity Structure Materials

open access: yesShock and Vibration
Since the development of industry, sound absorption and noise reduction have gradually become an urgent problem to be solved. Lightweight polymer film materials are very effective in response to sound waves, and sound waves can easily cause vibration of ...
Tingying Zhang   +4 more
doaj   +1 more source

Utilizing Agricultural Waste Materials for the Development of Sustainable Sound Absorption Materials [PDF]

open access: yesNature Environment and Pollution Technology
Environmental 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
doaj   +1 more source

Akytojo betono garso absorbcijos tyrimai/Porous concrete sound absorption investigation

open access: yesJournal of Civil Engineering and Management, 1996
Low-density porous concrete can be used as a sound absorbing material. This paper generalizes porous concrete sound absorption investigations. Porous concrete relative wave resistance modulus is longer than air wave resistance W=1 and that is why this
Antanas Laukaitis, Vytautas Lasauskas
doaj   +1 more source

Penentuan Nilai Penyerapan Suara Pada Panel Dinding Beton Busa Sebagai Panel Alternatif Yang Ramah Lingkungan

open access: yesJurnal Rekayasa Kimia & Lingkungan, 2011
Panel of foam concrete wall is a type of membrane panel which has maximum sound absorption and can create quite and environmentally friendly room. The purpose of this study was to determine the magnitudeof the sound absorption value using the Sabine ...
Zulfian Zulfian   +2 more
doaj   +2 more sources

Damping and sound absorption properties of polymer matrix composites: A review

open access: yesPolymer Testing, 2021
This review article provides a comprehensive overview of fiber and nanoparticle reinforced polymer matrix composites (PMC) for their damping and sound absorption properties.
Md Abu Shaid Sujon   +2 more
doaj   +1 more source

Sound absorption properties of wood-based pulp fibre foams

open access: yesCellulose, 2021
In this study, sound absorbing materials were produced through foam forming technique using hardwood and softwood pulps with varying chemical composition, ultrastructural, and morphological properties as raw materials.
Jose Cucharero   +4 more
semanticscholar   +1 more source

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