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Acoustic and thermal insulation properties of rubberhemp shive composite bonded with regenerated polyurethane resin. [PDF]

open access: yesSci Rep
Astrauskas T   +5 more
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Estimation of sound absorption coefficient of layered fibrous material using artificial neural networks

Applied Acoustics, 2020
The feasibility of a data-based artificial neural network (ANN) for the estimation of the sound absorption coefficient of a layered fibrous material is investigated in this study.
J. Jeon, Sung Soo Yang, Y. Kang
semanticscholar   +1 more source

Study on the sound absorption coefficient model for porous asphalt pavements based on a CT scanning technique

Construction and Building Materials, 2020
In the study of the noise reduction performance of porous asphalt pavements, it is usually necessary to establish an acoustic model to develop the experiment and the theoretical analysis.
Lei Gao   +4 more
semanticscholar   +1 more source

Theoretical model of absorption coefficient of an inhomogeneous MPP absorber with multi-cavity depths

Applied Acoustics, 2019
Micro-perforated panel (MPP) absorber has been known as an alternative absorber to classical porous material given its facile installation, long durability, environmental friendliness and attractive appearance. Extensive studies of MPP absorber proposing
Ali I. Mosa   +4 more
semanticscholar   +1 more source

Converting Sabine absorption coefficients to random incidence absorption coefficients

The Journal of the Acoustical Society of America, 2013
Absorption coefficients measured by the chamber method are referred to as Sabine absorption coefficients, which sometimes exceed unity due to the finite size of a sample and non-uniform intensity in the reverberation chambers under test. In this study, conversion methods from Sabine absorption coefficients to random incidence absorption coefficients ...
openaire   +2 more sources

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