Results 111 to 120 of about 40,603 (292)
Author Correction: Acoustic focusing of beads and cells in hydrogel droplets. [PDF]
Sci Rep, 2021 Fornell A, Pohlit H, Shi Q, Tenje M.
europepmc +1 more source
Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration
Advanced Materials, EarlyView.A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang +7 more
wiley +1 more source
Planar ultrasonic transducer based on a metasurface piezoelectric ring array for subwavelength acoustic focusing in water. [PDF]
Sci Rep, 2022 Hur S +5 more
europepmc +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
Investigation of an Active Focusing Planar Piezoelectric Ultrasonic Transducer
SensorsUltrasonic focusing transducers have broad prospects in advanced ultrasonic non-destructive testing fields. However, conventional focusing methods that use acoustic concave lenses can disrupt the acoustic impedance matching condition, thereby adversely ...
Qiao Wu, Bin You, Xu Zhang, Jun Tu
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Toward the Development of an On-Chip Acoustic Focusing Fluorescence Lifetime Flow Cytometer. [PDF]
Front Phys, 2021 Sambrano J +3 more
europepmc +1 more source
Advanced Materials, EarlyView.Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief +12 more
wiley +1 more source
Subwavelength Sound Focusing Using a Time-Reversal Acoustic Sink
, 2007 International audienceTime-reversal mirrors (TRM) have been developed since 1986 in order to focus ultrasonic transient waves in complex media. In the last few years, the properties of TR of acoustic fields have been studied in many different areas ...
Bavu, Eric +4 more
core +2 more sources
AIP Advances, 2015 Resolution of high intensity focused ultrasound (HIFU) focusing is limited by the wave diffraction. We have developed a spherical cavity transducer with two open ends to improve the focusing precision without sacrificing the acoustic intensity (App Phys ...
Faqi Li +8 more
doaj +1 more source
Surface wave focusing and acoustic communications in the surf zone [PDF]
, 2004 Author Posting. © Acoustical Society of America, 2004. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution.
Preisig, James C. +3 more
core +1 more source