Results 111 to 120 of about 1,827,815 (335)
Acoustic blackbody through instability-induced softening
Communications PhysicsPerfect 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 +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 +2 more
doaj +1 more source
Research on the combination of water and membranes as sound insulation building material [PDF]
, 2009 p. 3034-3040This research concerns a 200 mm thick panel filled with water. The airborne sound insulation of this panel was measured in accordance with standard ISO 140-3 [2].
MAFFEI, Roberto +2 more
core +1 more source
Advanced Materials, EarlyView.Vertical organic electrochemical transistors (vOECTs) are limited in speed by ion‐impermeable metal electrodes that slow ion injection. Using ion‐permeable PBFDO top electrodes allows direct vertical ion injection into BBL channels, achieving high current densities (>400 A cm−2), large on/off ratios (>106), and ultrafast switching in 28 µs. This sets a
Han‐Yan Wu +14 more
wiley +1 more source
Utilizing Agricultural Waste Materials for the Development of Sustainable Sound Absorption Materials [PDF]
Nature Environment and Pollution TechnologyEnvironmental 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
Absorption in Hydro-Acoustic Networks
, 2013 Water covers over 70% of the globe, yet our ability to communicate in the underwater environment is limited. Radio and light communication through water suffer from such major issues that acoustic waves are the dominant form of cable-free underwater communication, but themselves suffer from low bandwidth and poor signal quality.
openaire +2 more sources
Advanced Materials, EarlyView.A novel immunotherapeutic strategy combines injectable, adjuvant‐loaded hydrogels with externally controlled histotripsy to create immune‐priming sites within tumors. This approach generates millimeter‐sized immune‐activated lesions with flexible, patient‐tailored treatment scheduling, enabling precise immune activation through tumor ablation‐mediated ...
Sung Hoon Kim +9 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 +2 more
doaj +1 more source
SustainabilitySustainability in construction is a growing concern due to the significant polluting waste generated before, during, and after a building’s life cycle.
Luis Bravo-Moncayo +3 more
semanticscholar +1 more source
Advanced Materials, EarlyView.ABSTRACT Liver fibrosis is a serious yet reversible intermediate stage in the progression of liver disease, which can ultimately advance to cirrhosis and hepatocellular carcinoma. Targeted and selective inhibition of activated hepatic stellate cells (aHSCs) has emerged as a promising therapeutic strategy for the treatment of liver fibrosis.
Shutong Liu +8 more
wiley +1 more source