Lightweight metallic cellular materials (MCMs) have been seen in numerous engineering
applications to date, primarily due to their excellent mechanical characteristics such as low …

Noise pollution impacts the well-being of millions of people on a daily basis and can lead to
serious health issues such as hearing loss and stress. Developing efficient yet cost-effective …

In this study, a composite meta-absorber with a flexible size is proposed, and a genetic
algorithm is used to optimize the geometric dimensions under normal incidence and free …

Sound absorption mechanism, material modification and structural design of various
synthetic fiber materials for industrial noise reduction are reviewed in this paper for the …

In order to improve the sound absorption performance of the resonator, porous materials are
introduced, an acoustic metamaterial structure (P_TMCCR) composed of a tunable multi …

In this evolving technology, we move towards a more comfortable and swifter life, which
comes with certain drawbacks. Among them, noise finds one of the prominent places due to …

Closed-cell aluminum foams have many excellent properties, such as low density, high
specific strength, great energy absorption, good sound absorption, electromagnetic …

The hulls of marine vehicles are generally very effective at attenuating airborne acoustic
noise generated by their powertrains. However, conventional hull designs are generally not …

The potential usefulness of relatively simple pore microstructures such as parallel, identical,
inclined slits for creating broadband sound absorption has been argued through analytical …

Metallic foam is a popular topic due to its diverse industrial applications and unique
combination of properties. Metallic foam is significantly lighter than nonfoam metal materials …