Introduction: Noise pollution from machine operations is one of industry's long-standing
issues, especially in the textile manufacturing industry. High noise levels produced by …

Resam is a type of fern or fern that usually grows in shady and humid areas. This plant has
not been used as a raw material for making sound absorbers, even though resam is found in …

Silencer is a tool to reduce the intensity of sound that occurs. Many have developed natural
fibre-reinforced composite materials as an alternative to silencers, as they are considered …

Resam is a type of fern or fern that usually grows in shady and humid areas. Resam plants
are widely found in the province of Bangka Belitung so that their availability is abundant to …

This study aims to utilize empty oil palm bunch fibers as a basic material for making
environmentally friendly soundproofing. Empty oil palm bunch fibers are waste from the …