Results 131 to 140 of about 1,553,727 (355)
International Journal of Innovative Science and Research TechnologyThis study investigates the spatial decay rate of speech in performance spaces and open-plan offices, focusing on the effects of sound absorption and screen height.
Olalekan Samuel Agbeniyi +1 more
semanticscholar +1 more source
Moth‐Wing‐Inspired Multifunctional Metamaterials
Advanced Materials, EarlyView.This study develops a moth‐wing‐inspired heterogeneous metamaterial that achieves synergistic broadband sound absorption, mechanical energy dissipation, and thermal insulation within a lightweight architected framework. Combining bioinspired gradient design, genetic‐algorithm optimization, and additive manufacturing, the bionic heterogeneous acoustic ...
Haoran Pei +12 more
wiley +1 more source
Observation of Dislocation Bound States and Skin Effects in Non‐Hermitian Chern Insulators
Advanced Materials, EarlyView.Experimental observation of the dislocation‐induced bound states and skin effects is demonstrated in a line‐gap non‐Hermitian acoustic lattice. By utilizing active meta‐atoms to measure the full complex spectrum and biorthogonal eigenstates, the study reveals the exceptional‐point‐driven melting of defect modes.
Jia‐Xin Zhong, Bitan Roy, Yun Jing
wiley +1 more source
Comparison of the room’s dimensions and absorption distribution estimation performance using wave-based and geometrical acoustics dataset [PDF]
, 2023 Yuanxin Xia, Zhihan Guo, Cheol-Ho Jeong
openalex
Recent Advances in Collective Behaviors of Micro/Nanomotor Swarms
Advanced Materials, EarlyView.This review describes the driving forces behind collective motion, explores the self‐organization of micro/nano swarms across zero‐dimensional (0D), one‐dimensional (1D), two‐dimensional (2D), and three‐dimensional (3D) spaces, and highlights their potential in drug delivery, environmental monitoring, and smart devices.
Siwen Sun +4 more
wiley +1 more source
Sound Diffusers with Fabric Covering
Archives of Acoustics, 2013 Fabric covering is often used by designers, as it can easily mask acoustic structures that do not match an interior. However, in the case of sound diffusers based on change in the phase of the reflected wave, the use of fabric covering is not without ...
Tadeusz KAMISIŃSKI +4 more
doaj
Measurement of audience seat absorption for use in geometrical acoustics software [PDF]
, 2003 Jason E. Summers
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Ferroelectrics Hybrids: Harnessing Multifunctionality of 2D Semiconductors in the Post‐Moore Era
Advanced Materials, EarlyView.In this Review, the state of art of ferroelectric hybrid systems—combining ferroelectrics, 2D semiconductors, and molecular switches is presented—as next‐generation platforms for high‐density, multifunctional electronics. By discussing 2D FeFET applications, nanoscale material downscaling, M3D integration, and emerging ferroelectrics, it highlights ...
Haixin Qiu +3 more
wiley +1 more source
Tunable acoustic labyrinthine acoustic metamaterials for broadband noise absorption
This study introduces the Adjustable Acoustic Labyrinth Metamaterial (AALM) as a novel solution for noise pollution, particularly for managing the unpredictable and shifting frequencies produced by vehicles and mechanical equipment. The AALM is an adaptable metamaterial that integrates labyrinth structures with Helmholtz resonators (HR) to deliver ...
Abbas Dalvand +2 more
openaire +1 more source
Rayleigh wave absorption via acoustic microscopy
Electronics Letters, 1982 The acoustic material signature(AMS) model may be used to extract acoustic propagation loss for Rayleigh waves via the reflection acoustic microscope. Attenuation measurements for two metallic material examples are consistent with published results on bulk wave scattering losses.
openaire +1 more source