Studies on Dual Helmholtz Resonators and Asymmetric Waveguides for Ventilated Soundproofing
SensorsAchieving the simultaneity of ventilation and soundproofing is a significant challenge in applied acoustics. Ventilated soundproofing relies on the interplay between local resonance and nonlocal coupling of acoustic waves within a sub-wavelength ...
Inkyuk Han, Inho Lee, Gwanho Yoon
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Effect of Acoustic Reflector's Surface Density on Sound Absorption Characteristics and Stage Acoustics [PDF]
, 2012 Young‐Sun Kim +3 more
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Advanced Materials Interfaces, EarlyView.This study demonstrates polydimethylsiloxane (PDMS) nanocomposite thin films incorporating ZnO and TiO2 nanoparticles, optimized using response surface methodology. The films exhibit tunable refractive index, high transparency, low optical loss, and sub‐MPa mechanical compliance.
Moqaddaseh Afzali Naniz +4 more
wiley +1 more source
Shaping Microbial Motion with Light: A Contactless Approach Using Diffusioosmotic Flow
Advanced Materials Interfaces, EarlyView.Light‐controlled, contactless manipulation of cyanobacteria using photoresponsive azobenzene surfactants. Reversible photo‐isomerization generates surface flow, enabling precise trapping, relocation, and directional control of single cells or ensembles with adjustable light intensity and wavelength for noninvasive, spatiotemporally resolved microbial ...
Maren Umlandt +5 more
wiley +1 more source
Acoustics and optics of absorptive crystals: a universal formalism for topological effects [PDF]
, 2013 V. I. Alshits, Vasilii N. Lyubimov
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Enhancing Damage Tolerance of Structures Using 3D/4D Printing Technologies
Advanced Materials Technologies, EarlyView.This review highlights recent advances in damage tolerance for structural design, emphasizing safety, durability, and reliability in fields like aerospace and civil engineering. It covers innovations in materials, 3D/4D printing, predictive design methods, and nature‐inspired strategies.
Morteza Sayah Irani +3 more
wiley +1 more source
Acoustic Wavefront Shaping Using Ultrahigh Phase Resolution Metamaterial
Advanced Materials Technologies, EarlyView.A Bilateral Symmetrical T‐shaped (BST) acoustic metamaterial unit cell capable of achieving a high phase resolution of π/36 radians at 8000 Hz is introduced. The approach enables tunable wavefront control through simple rotational adjustment of BST, which offers an alternative to the conventional complex metamaterials unit cell design and a way for ...
Sourabh Dogra +4 more
wiley +1 more source
Paleo-ocean acoustics: The historical variation of low-frequency sound absorption in the world’s oceans and the implications for sea mammals [PDF]
, 1995 D. G. Browning, R. H. Mellen
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MEMS‐Based Magnetoelectric Antennas for Wireless Power Transmission in Brain‐Implantable Devices
Advanced Materials Technologies, EarlyView.Magnetoelectric (ME) antennas allow the minimization of the invasiveness of brain implantable devices, via powering wirelessly systems able to actuate neural tissue. In order to achieve the necessary power efficiency transmission, the choice of the materials and the system assembly is vital.
Laura Mazón‐Maldonado +5 more
wiley +1 more source