Results 51 to 60 of about 3,555 (220)
Advances in Condensed Matter Physics, 2018 There has been an explosion of interest in acoustic metamaterial in the last ten years. The tunable negative acoustic metamaterial is an important issue for designing metamaterials.
Xiao-Le Yan +3 more
doaj +1 more source
Subwavelength slit acoustic metamaterial barrier [PDF]
, 2015 [EN] Reduction of noise in the transmission path is a very important environmental problem. The standard method to reduce this noise level is the use of acoustic barriers.
Uris Martínez, Antonio +4 more
core +1 more source
Wide-Angle Broadband Nonreflecting Acoustic Metamaterial Fence
, 2020 © 2020 American Physical Society. In this work, we theoretically propose and experimentally demonstrate a kind of nonreflecting acoustic metamaterial fence that is perfectly impedance matched to air over a wide range of incident angles and a broad ...
Fang, Nicholas X. +7 more
core +1 more source
Reconfigurable ultra-sparse ventilated metamaterial absorber
APL Materials, 2023 The impetus for examining ventilated acoustic metamaterials stems from the demand for increasingly efficient and adaptable noise reduction and sound wave manipulation techniques.
Yangsong Ye +6 more
doaj +1 more source
Acoustic jet based on acoustic metamaterial
, 2021 In this paper, a novel gradient index (GRIN) acoustic metamaterial is proposed based on the concept of optical modified generalized Luneburg lens (MGLL). With the MGLL, double-foci and high energy density between the two foci can be achieved, which enables the realization of an ultra-long acoustic jet between the two foci.
Zhao, Liuxian +2 more
openaire +2 more sources
AIP Advances, 2019 The photoacoustic signal from single cell plays an important role in medical diagnosis. Currently, the single-cell photoacoustic detection has limitations.
Jianning Han, Peng Yang, Shuai Tang
doaj +1 more source
From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices
Advanced Engineering Materials, EarlyView.Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle +3 more
wiley +1 more source
Broadband Acoustic Hyperbolic Metamaterial
Physical Review Letters, 2015 Acoustic metamaterials (AMMs) are engineered materials, made from subwavelength structures, that exhibit useful or unusual constitutive properties. There has been intense research interest in AMMs since its first realization in 2000 by Liu et al. A number of functionalities and applications have been proposed and achieved using AMMs.
Shen, Chen +5 more
openaire +4 more sources
Acoustic Willis meta-atom beyond the bounds of passivity and reciprocity
Communications Physics, 2021 Metamaterials are designed to control unconventional wave properties in acoustic systems with a range of applications such as acoustic cloaking. Here, the authors design an active acoustic Willis metamaterial that can realize decoupled polarizabilities ...
Choonlae Cho +3 more
doaj +1 more source
Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading
Advanced Engineering Materials, EarlyView.This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev +2 more
wiley +1 more source