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 …

Global population growth and industrialization have exacerbated the nonrenewable energy
crises and environmental issues, thereby stimulating an enormous demand for producing …

Noise has been regarded as an environmental pollutant that greatly affects people's
physical and psychiatric health. Fibrous sound absorption materials are widely used to …

This paper studies the wave propagation of two-dimensional functionally graded (2D-FG)
porous rotating nano-beams for the first time. The rotating nano-beams are made of two …

The prediction of the sound absorption coefficient in diffuse field conditions is of great
interest to an acoustic project. Foams and granular materials like porous concrete have …

With the active feedback control system on elastic wave metamaterials, this research is
concentrated on the effective mass density and sound transmission by a harmonic incident …

With the increasing prominence and complexity of environmental noise problems, there is
an urgent need for novel acoustic materials to meet noise reduction requirements. In this …

The characteristic temperature and apparent activation energy (AAE) of the melamine foam
(MF) prepared by microwave were calculated with four well-known thermal kinetic models of …

Structural vibration of gas pipeline systems can be strongly affected by the response of the
acoustic domain represented by the gas being transported through pressurized pipes …

In this work, Ti-6Al-4V (Ti64) porous structures were prepared by selective laser melting
(SLM), and the effects of post heat treatment on its microstructural and mechanical …