The term “sea waste” generally refers to any solid, liquid, or gaseous material or substance
that is discarded, disposed of, or abandoned in the ocean, sea, or any other body of salty …

Lignin is a sustainable biomass resource with abundant hydroxyl groups that holds great
promise for use as a feedstock for polyurethane foam production. Therefore, the flexible …

Triboelectric nanogenerators (TENGs) offer an attractive approach for energy harvesting for
self-powered devices. Improving the output performance of TENGs depends on many …

In this study, we have prepared a new formulation from flexible polyurethane/calcined waste
eggshell (FPU/CWES) composites as a novel piezoelectric foam material for transducer …

The effect of resin modification through the incorporation of the biomass waste in the form of
seashell powder on the mechanical properties of basalt fiber–reinforced epoxy/seashell …

A two degrees-of-freedom system coupling an acoustical mode of a closed tube to an
electroacoustic loudspeaker is considered. A model-inversion technique is presented to …

Noise pollution affects human health and the environment. In this study, halloysite nanoclay
(HNC) was employed as a bio-nanofiller with different ratios (1–5 wt%) to improve the …

This study aims to investigate the potential of integrating natural biochar (BC) derived from
eggshell waste into flexible polyurethane (FPU) foam to enhance its mechanical and …

This study explores the use of sugarcane bagasse (SCB), a byproduct of sugarcane
processing, as a bio-filler in the production of flexible polyurethane foam (FPU), focusing on …

The polyurethane porous elastic road surface (PERS) demonstrates superior noise
reduction performance, primarily due to its porous structure that facilitates effective sound …