The pore structure and sound absorption capabilities of Homalium (Homalium foetidum) and Jelutong (Dyera costulata)

Investigation of Sound Absorption Ability of Acanthopanax senticosus Wastes

“…improving the sound absorption effect depending on the increase in thickness. This trend is typical of porous or granular sound-absorbing materials (Jang, 2022b(Jang, , 2022c(Jang, , 2022dJang and Kang, 2021c).…”

Investigation of Sound Absorption Ability of Hinoki Cypress (Chamaecyparis obtusa) Cubes

“…If the cube cross-sections were not polished, the pores of the surface would have contributed to the improvement of the sound absorption performance (Jang and Kang, 2022b). As mentioned in the introduction section, the sound absorption performance is more likely to be better in hardwood species where vessels are developed (Jang and Kang, 2021a, 2021b, 2021c, 2021d, 2021e, 2021f, 2022a, 2022c. Thus, it is necessary to evaluate the sound absorption ability by making cubes of various hardwood species.…”

“…In addition, it can be used as a porous sound-absorbing material by using the pore structure of the cross-section of wood (Jang and Kang, 2021a, 2021b, 2021c, 2021d, 2021e, 2021f, 2022a, 2022c. The wood's pore structure and the void spaces between the cubes are suitable conditions for sound absorption.…”

Innovative sound absorption technique: Step‐shaped ceramic fiberboards with veneer attachment for walls

“…[7][8][9][10][11][12] There are now many materials that can be derived from waste and biomass, such as wood, organic fibers of either plant or animal origin. [13][14][15][16][17] These materials can be used as sound-absorbing materials, and they have low environmental impacts and negative health effects. Examples of such materials include cellulose-based fibers derived from waste wood veneer and agriculture residues, such as cotton, hemp, and jute.…”

“…Sound absorption performance can be achieved through various mechanisms, including porous materials for absorbing sound waves, plate vibration for membrane‐based absorption, and resonant mechanisms that exploit air cavity resonance in specific frequency bands 7–12 . There are now many materials that can be derived from waste and biomass, such as wood, organic fibers of either plant or animal origin 13–17 . These materials can be used as sound‐absorbing materials, and they have low environmental impacts and negative health effects.…”