Results 121 to 130 of about 114,205 (309)
Advanced Functional Materials, EarlyView.Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler +4 more
wiley +1 more source
AIP AdvancesIn this paper, finite element models of ultrasonic wave propagation in Cu–PMMA composites are established. The effects of second-phase particles, ultrasonic properties, and graded interfaces on the ultrasonic propagation behavior are investigated, and ...
Bo Zhou +6 more
doaj +1 more source
Submicron Metasurface Reconfigured Multiband Smart Windows
Advanced Functional Materials, EarlyView.This work presents a submicron metasurface reconfigured multiband thermochromic smart window. By integrating subwavelength nanostructures into a Fabry−Perot resonator configuration, it mitigates conventional trade‐offs to simultaneously deliver high luminous transmittance and robust solar heating and radiative cooling modulation capabilities ...
Guanya Wang +8 more
wiley +1 more source
Three dimensional ultrasonic imaging
, 1993 Ultrasonic nondestructive evaluation techniques interrogate components with high frequency acoustic energy. A transducer generates the acoustic energy and converts acoustic energy to electrical signals.
Crawford, S., Thomas, G. H., Benson, S.
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Correlating Microstructure with Backscattered Ultrasonic Energy
, 1988 High frequency ultrasonic energy interacts with metallurgical microstructure to produce scattered energy fields that are useful in characterizing the material.
John Mittleman, David W. Mohr
core +1 more source
Advanced Functional Materials, EarlyView.A shape‐memory microneedle system enables reproductive hormone therapy through a single transdermal insertion. The X‐shaped device sustains follicle‐stimulating hormone release for three days, and mild heating restores the O shape to trigger burst human chorionic gonadotropin release.
Sungwoo Cho +8 more
wiley +1 more source
Investigation of Ultrasonic Emulsifying Processes of a Linseed Oil and Water Mixture
Archives of Acoustics, 2013 Ultrasonic emulsifying processes of immiscible liquids can be used to obtain stable emulsions. The authors used an ultrasonic sandwich head with an energy concentrator to obtain a suitable value of the energy density necessary for the emerge of ...
Andrzej SKUMIEL +4 more
doaj
Numerical Evaluation of Ultrasonic Detection of Solid Occlusions in CSP Molten Salt Piping
Applied SciencesThis work presents a numerical evaluation of the applicability of non-invasive ultrasonic techniques for detecting solid inclusions in concentrated solar power (CSP) systems using molten salts.
Raffaele Dragonetti +2 more
doaj +1 more source
Simulation of Time Reversed Acoustic Focusing in Rectangular Room
, 2010 The Time Reversed Acoustic (TRA) focusing technique based on acoustic reverberated media provides an elegant possibility of both temporal and spatial concentrating of acoustic energy in enclosure.
김병남 +3 more
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Shaping Matter with Acoustic Waves: From Particles to Functional Structures
Advanced Functional Materials, EarlyView.Acoustic‐directed assembly is reviewed as a materials‐oriented strategy for organizing particles, polymers, metals, and biological systems into functional structures. The review distinguishes reversible manipulation from permanent structure formation through medium fixation, particle fixation, and in situ material generation, highlighting routes toward
Avraham Kenigsberg +5 more
wiley +1 more source