In recent years, increasing attention has been paid to the impacts of environmental noises
on living creatures as well as the accuracy and stability of precise instruments. Due to …

Ultra-lightweight aerogels have profound applications as advanced multi-functional sound-
absorbing materials. At present, conventional aerogels are associated with pores with sizes …

This work presents benchmark examples related to the modelling of sound absorbing
porous media with rigid frame based on the periodic geometry of their microstructures. To …

Reticulated foams are widely used in noise control applications. However, difficulties in
controlling the foaming process makes it difficult to control the microstructure and …

This work investigates a porous composite with modifiable micro-geometry so that its ability
to absorb noise can be accommodated to different frequency ranges. The polymeric …

The increasingly distressing problem of noise pollution prompts the rapid research and
development of lattice-based acoustic materials for practical applications. These lattices …

Closed-cell metal foams are lightweight and durable materials resistant to high temperature
and harsh conditions, but due to their fully closed porosity they are poor airborne sound …

Since environmental protection is of increasing importance, the sound absorption of
polyurethane foams in which the normal petroleum content is partly replaced by soybean oil …

Transport parameters play a key role in characterizing the thermo-viscous behaviour of the
microgeometry. Semi-phenomenological models provide valuable tools to establish a …

A microcellular polyurethane (PU) foam is widely used as a sound absorber to eliminate
noise by utilizing its complex internal structure. The most intriguing issue for the sound …