Results 111 to 120 of about 39,171 (345)

Acoustic blackbody through instability-induced softening

Communications Physics
Perfect wave absorption across all wavelengths is forbidden by the causality principle. Here we demonstrate an approach that circumvents this fundamental limitation in acoustics by coupling unstable components to achieve zero static modulus.
Min Yang, Sichao Qu, Nicholas Fang, Shuyu Chen   +3 more
doaj   +1 more source

Wavefront manipulation by acoustic metasurfaces: from physics and applications

Nanophotonics, 2018
Molding the wavefront of acoustic waves into the desired shape is of paramount significance in acoustics, which however are usually constrained by the acoustical response of naturally available materials.
Liang Bin, Cheng Jian-chun, Qiu Cheng-Wei   +2 more
doaj   +1 more source

Utilizing Agricultural Waste Materials for the Development of Sustainable Sound Absorption Materials [PDF]

Nature Environment and Pollution Technology
Environmental pollution is escalating due to inadequate waste management, with the open burning of agricultural waste being a significant contributor. This process releases various harmful gases into the environment.
Venkatesan B., Kannan V., Raja Priya P. and Karthiga Shenbagam N
doaj   +1 more source

Perfect, broadband, and sub-wavelength absorption with asymmetric absorbers: Realization for duct acoustics with 3D printed porous resonators

, 2021
Jean Boulvert, Thomas Humbert, Vicente Romero‐García, Gwénaël Gabard, Edith Roland Fotsing, Annie Ross, Jacky Mardjono, Jean‐Philippe Groby   +7 more
openalex   +2 more sources

Advances in Photonic Materials and Integrated Devices for Smart and Digital Healthcare: Bridging the Gap Between Materials and Systems

Advanced Materials, EarlyView.
This article summarizes significant technological advancements in materials, photonic devices, and bio‐interfaced systems, which demonstrate successful applications for impacting human healthcare via improved therapies, advanced diagnostics, and on‐skin health monitoring.
Seunghyeb Ban, Hoon Yi, Jaejin Park, Yunuo Huang, Ki Jun Yu, Woon‐Hong Yeo   +5 more
wiley   +1 more source

The Acoustic Characterization of Broom Fibers

Journal of Natural Fibers, 2017
Natural materials are becoming a valid alternative to traditional synthetic ones for sound absorption applications. In this paper, the acoustic properties of broom fibers are reported and discussed.
Umberto Berardi, Gino Iannace, Maria Di Gabriele   +2 more
doaj   +1 more source

From Mechanoelectric Conversion to Tissue Regeneration: Translational Progress in Piezoelectric Materials

Advanced Materials, EarlyView.
This review highlights recent progress in piezoelectric materials for regenerative medicine, emphasizing their ability to convert mechanical stimuli into bioelectric signals that promote tissue repair. Key discussions cover the intrinsic piezoelectric properties of biological tissues, co‐stimulation cellular mechanisms for tissue regeneration, and ...
Xinyu Wang, Sílvio Terra Stefanello, Victor Shahin, Yun Qian   +3 more
wiley   +1 more source

Upconversion Nanoparticle‐Covalent Organic Framework Core–shell Particles as Therapeutic Microrobots Trackable With Optoacoustic Imaging

Advanced Materials, EarlyView.
Upconversion nanoparticle‐covalent organic framework core–shell particles provide enhanced contrast for optoacoustic imaging by leveraging the optical absorption of upconversion luminescence within the covalent organic framework matrix. Beyond their role as contrast agents, these particles enable customizable therapeutic agent loading and release, as ...
Dong Wook Kim, Paul Wrede, Andrés Rodríguez‐Camargo, Yi Chen, Nihal Olcay Dogan, Chaim Glück, Bettina V. Lotsch, Daniel Razansky, Metin Sitti   +8 more
wiley   +1 more source

Time domain acoustic absorption: A unified model for linear and nonlinear acoustics [PDF]

, 1994
Kenneth D. Rolt
openalex   +1 more source

Mechanochemistry for Metal–Organic Frameworks and Covalent–Organic Frameworks (MOFs, COFs): Methods, Materials, and Mechanisms

Advanced Materials, EarlyView.
An overview is provided of the mechanochemistry of metal‐organic frameworks (MOFs) and covalent‐organic frameworks (COFs), highlighting opportunities and strategies for discovery, synthesis and reactivity studies of these materials. Mechanistic studies and comparisons to the mechanochemistry of organic solids are outlined, showcasing how advances in ...
Joseph M. Marrett, Farshid Effaty, Xavier Ottenwaelder, Tomislav Friščić   +3 more
wiley   +1 more source