Today much importance is given to the acoustical environment. Noise control and its
principles play an important role in creating an acoustically pleasing environment. This can …

Nonwoven fabrics are ideal materials for use as acoustical insulation products because they
have high total surface. The surface area of the fabric is directly related to the denier and …

This research paper reports a study on thermal and sound insulation samples developed
from sugarcane bagasse and bamboo charcoal for automotive industry applications. The …

Acoustical insulation and absorption properties of nonwoven fabrics depend on fiber
geometry and fiber arrangement within the fabric structure. The different structures of the …

For modeling of jute as acoustic material, knowledge of its non-acoustical parameters like
porosity, tortuosity, air flow resistivity, thermal and viscous characteristic lengths is a prime …

This research paper reports a study on thermal and sound insulation samples developed
from recycled cotton/polyester (recycled cotton/PET) for construction industry applications …

Recycled fibers are commonly used in dissimilar applications and one of the most important
applications is sound absorption. Recycled fiber nonwovens currently are in greater …

This paper presents a methodology for the inverse characterization of sound absorbing rigid
porous media, based on standard measurements of the surface acoustic impedance of a …

Microperforated panel absorbers are used in many noise control applications as an
alternative to fibrous materials. In the past, perforations were circular in shape. However …

ABSTRACT Problem Statement: The high level noise is harmful for all people especially in
heavy factories. In accordance with ear human biodynamic response, health damages of …