Recent advances in acoustic metamaterials for simultaneous sound attenuation and air ventilation performances

S Kumar, HP Lee - Crystals, 2020 - mdpi.com
In the past two decades, acoustic metamaterials have garnered much attention owing to
their unique functional characteristics, which are difficult to find in naturally available …

A systematic review of emerging ventilated acoustic metamaterials for noise control

LYL Ang, F Cui, KM Lim, HP Lee - Sustainability, 2023 - mdpi.com
As sustainability is one of the main pillars in developing future cities, adopting natural
ventilation whenever possible is one way to reduce energy consumption, thus indirectly …

Remote work: Aircraft noise implications, prediction, and management in the built environment

LYL Ang, F Cui - Applied Acoustics, 2022 - Elsevier
The COVID-19 pandemic has greatly changed workplace management. Most workplaces
have adopted the work-from-home policy to minimize the risk of community spread …

[HTML][HTML] Aircraft noise reduction strategies and analysis of the effects

J Xie, L Zhu, HM Lee - … Journal of Environmental Research and Public …, 2023 - mdpi.com
In this study, six aircraft noise reduction strategies including the optimization of aircraft type,
regulation of night flight number, optimization of flight procedure, modification of operating …

[HTML][HTML] Numerical modeling and field test of sonic crystal acoustic barriers

X Qin, A Ni, Z Chen, M Fang, Y Li - Environmental Science and Pollution …, 2023 - Springer
The rapid development of highway traffic has gradually deteriorated the acoustic
environment along the line. Sonic crystal theory provides new ideas for traffic acoustic …

Metamaterials for acoustic noise filtering and energy harvesting

F Mir, D Mandal, S Banerjee - Sensors, 2023 - mdpi.com
Artificial methods for noise filtering are required for the twenty-first century's Factory vision
4.0. From various perspectives of physics, noise filtering capabilities could be addressed in …

Insertion loss of sonic crystal made with multi resonant shells

K Mohapatra, DP Jena - Applied Acoustics, 2021 - Elsevier
In this paper, we proposed multi resonant scatterers which is comprised of two coaxial
resonant shells. Four conceivable scatterers which are combinations of two different types of …

Perspectives on the sonic environment and noise mitigations during the COVID-19 pandemic era

HP Lee, S Kumar - Acoustics, 2021 - mdpi.com
The pandemic has impacted every facet of our life, society, and environment. It has also
affected both the requirement and challenges for acoustic research and applications. The …

Numerical and experimental methods to measure the acoustic performance of sonic crystal noise barrier

K Mohapatra, DP Jena - Building Acoustics, 2023 - journals.sagepub.com
The array of periodic scatterers is known as sonic crystal at present and sonic crystal is the
most cost-effective solution for a “noise barrier” because of its acoustic attenuation due to …

Breaking the limits of acoustic science: A review of acoustic metamaterials

G Aydın, SE San - Materials Science and Engineering: B, 2024 - Elsevier
Acoustic metamaterials (AMMs) are a form of man-made material that can be specifically
developed to have a sub-wavelength periodic structure with extraordinary characteristics not …