Energy harvesting technologies have been explored by researchers for more than two
decades as an alternative to conventional power sources (eg batteries) for small-sized and …

In solid state physics, a bandgap (BG) refers to a range of energies where no electronic
states can exist. This concept was extended to classical waves, spawning the entire fields of …

Recent advances in the field of low-power electronic components production have spurred
research in energy harvesting. Ambient sound can be used as a source of energy, and the …

Sound absorption structures, as an effective approach to reducing sound radiation, have
always received extensive attention in the engineering of vibration and noise reduction. In …

Energy harvesting is the most effective way to respond to the energy shortage and to
produce sustainable power sources from the surrounding environment. The energy …

Natural and human environments are abundant of unused renewable energy such as
mechanical energy, acoustic energy, electromagnetic energy, thermal energy, etc. The idea …

An acoustic wave is a type of energy that is clean and abundant but almost totally unused
because of its very low density. This study investigates a novel dual‐tube Helmholtz …

Sound energy harvesting is one of the promising technologies due to the abundant and
clean sound sources. It can be the semi-permanent alternative power supplies for wireless …

We theoretically report on an innovative and practical acoustic energy harvester based on a
defected acoustic metamaterial (AMM) with piezoelectric material. The idea is to create …

Acoustic energy is a type of environmental energy source that can be scavenged and
converted into electrical energy for small-scale power applications. In general, incident …