Phononic crystal (PnCs) is one of the metamaterials focusing on the wave controls. The
fabrication of this metamaterial is the key for its further industrial applications. Due to the …

Piezoelectric nanogenerator (PENG) was first introduced by using piezoelectric nanowires
for converting tiny mechanical energy into electric power. 1 Research in nanogenerators has …

Sound energy enhancement realized by electronic circuit designs plays a vital part in many
fields, including acoustic communication, medical imaging, acoustic positioning and sound …

We propose a lightweight soundproofing meta-panel that suppresses noise in separate wide
frequency bands. The meta-panel has a multi-scale lattice structure sandwiched by two thin …

Modern noise research and assessment techniques are commonly used in the workplace
and our personal living environment. Occupational Noise and Workplace Acoustics presents …

In this paper, the authors proposed a class of hierarchical square honeycomb metamaterials
(HSHMs) with low-frequency broad bandgaps (BGs) and flat energy band characteristics …

A coupled heterogeneous structure consisting of multiple phononic crystal resonators
(PCRs) is presented. Because of the acoustic coupling between PCRs, the extremely-huge …

In many acoustic components, strong directional response exerts considerable influence on
sound wave energy transmission, restricting their widespread applications. Here, we report …

Reports published in the literature argue for the need to develop standardized methods for
assessment of insulating power demonstrated by barriers based on phononic crystalline …