Abaca and coconut coir fibers which are natural fibers able to be as damping material
effectively. Those fibers availability in Aceh are abundant and the price are relatively …

Nowadays the need for fuel has always improved as following the increase in community
and industry activities. Therefore, we need to search for resources of alternative energy. The …

The environmental problems faced today are becoming more complex and dilemmatic It
encourages concern for the environment and energy to be very important. This increased …

INDONESIA: Bahan organik yang dapat dibuat panel akustik penyerap suara adalah bahan
resistif berserat, mempunyai pori-pori serta mengandung sedikit lignin (bahan pembentuk …

Noise is unwanted sound and is a source of environmental pollution, especially the work
environment. Some of the impacts of noise on health include communication disorders …

This study aims to determine the feasibility, practicality, and effectiveness of the
development of inquiry model learning devices guided by palm fiber composite media in …

The synthesis of composite board made from a mixture of coconut coir and Terminalia
catappa fruit fibers using Polyvinyl Acetate (PVAc) matrix has been successfully carried out …

Tujuan penelitian ini adalah merancangan sebuah alat tabung impedansi yang dilengkapi
dengan sensor suara KY-037 yang berguna sebagai alat ukur koefisien serap bunyi …