Effective Parameters of Acoustic Metamaterials
Russian Physics Journal, 2018 Analytical expressions are presented for the wave number, the characteristic wave impedance, and the refractive index of homogeneous longitudinal plane waves propagating in an acoustic metamaterial with dissipative losses. The metamaterial is characterized by the effective scalar material parameters: the complex density and the compressibility.
openaire +2 more sources
Advanced Materials Technologies, Volume 11, Issue 5, 6 March 2026.This review traces the evolution of wireless power transfer (WPT) for implantable medical devices, spanning electromagnetic, magnetoelectric, acoustic, and magneto‐dynamic systems. Quantitative comparisons of power, distance, and device scale highlight trade‐offs across modalities, while emerging hybrid mechanisms reveal strategies to overcome ...
Junyeop Kim, Yoonseok Park
wiley +1 more source
Effects of Aperture Shape on Absorption Property of Acoustic Metamaterial of Parallel-Connection Helmholtz Resonator. [PDF]
Materials (Basel), 2023 Bi S +8 more
europepmc +1 more source
A tunable microwave absorption metamaterial inspired by moths evading bat detection
InfoMat, Volume 8, Issue 3, March 2026.Electromagnetic radiation in the current environment has become complex and uncontrollable due to the advancement of wireless technology. Inspired by the moth surface cilia to bend and evade bat sonar detection, our work introduces a metamaterial incorporating broadband and tunable microwave absorption properties combined with deep learning algorithms.
Yijie Liu +13 more
wiley +1 more source
Deep-Learning-Based Acoustic Metamaterial Design for Attenuating Structure-Borne Noise in Auditory Frequency Bands. [PDF]
Materials (Basel), 2023 Liu TW, Chan CT, Wu RT.
europepmc +1 more source
Comparative Framework for Energy Absorption Capacity of Auxetics and Open‐Cell Foams
Macromolecular Materials and Engineering, Volume 311, Issue 3, March 2026.. ABSTRACT The selection of the appropriate materials and structures for enhanced energy absorption is paramount in the design of protective gear, regardless of the final application. This research addresses a long‐standing academic debate regarding the effectiveness of auxetic structures in mitigating impacts relative to open‐cell foam counterparts ...
George Youssef, Celia Rufo‐Martín
wiley +1 more source
Application of Cellulose and Paper-Based Products in Building Acoustics
Archives of AcousticsThis article presents a comprehensive acoustic study of paper-based building products: cellulose wool,paperboard, corrugated cardboard, and honeycomb panels. The material configurations included the intact form as well as the various modifications, i.e.,
Aleksandra KLIMEK +3 more
doaj +1 more source
Study on Sound-Insulation Performance of an Acoustic Metamaterial of Air-Permeable Multiple-Parallel-Connection Folding Chambers by Acoustic Finite Element Simulation. [PDF]
Materials (Basel), 2023 Peng W +5 more
europepmc +1 more source
Phase Hologram by Acoustic Metasurfaces
Small Structures, Volume 7, Issue 3, March 2026.This work has achieved a breakthrough in holographic communication, realizing phase holographic imaging. The proposed phase holographic concept overcomes the limitations of traditional amplitude holographic energy attenuation. The design of its amplitude compensation method further addresses the key challenge of phase holographic imaging clarity ...
Xiao Guo +11 more
wiley +1 more source
Research on Low-Frequency Noise Control of Automobiles Based on Acoustic Metamaterial. [PDF]
Materials (Basel), 2022 Liao Y +6 more
europepmc +1 more source