Results 131 to 140 of about 85,090 (269)
A Hydrodynamic Model for Measuring Fluid Density and Viscosity by Using Quartz Tuning Forks
Sensors, 2019 A hydrodynamic model of using quartz tuning forks (QTFs) for density and viscosity sensing, by measuring the resonance frequency and quality factor, has been established based on the cantilever beam theory applied to the atomic force microscope (AFM ...
Mi Zhang +3 more
doaj +1 more source
Joint Analysis of Acoustic Events and Scenes Based on Multitask Learning [PDF]
arXiv, 2019 Acoustic event detection and scene classification are major research tasks in environmental sound analysis, and many methods based on neural networks have been proposed. Conventional methods have addressed these tasks separately; however, acoustic events and scenes are closely related to each other.
arxiv
High Thermoelectric Performance in Low‐Cost Cu8SiSxSe6‐x Argyrodite
Advanced Functional Materials, EarlyView.This study discovers the great potential of Cu8SiSxSe6‐x argyrodites as new, low‐cost, Te‐free thermoelectric materials. The proposed defect scheme suppresses the phase transition, enhances the weighted mobility and optimizes the grain boundary contacts.
Taras Parashchuk +7 more
wiley +1 more source
Introduction to special issue on compressive sensing in acoustics.
Journal of the Acoustical Society of America, 2018 Compressive sensing (CS) in acoustics has received significant attention in the last decade, and thus motivates this special issue. CS emerged from the signal processing and applied math community and has since generated compelling results in acoustics ...
P. Gerstoft +3 more
semanticscholar +1 more source
The Journal of the Acoustical Society of America, 2011 An investigation has been undertaken into acoustic iridescence, exploring how a device can be constructed which alter sound waves, in a similar way to structures in nature that act on light to produce optical iridescence. The main construction had many thin perforated sheets spaced half a wavelength apart for a specified design frequency.
openaire +2 more sources
Omnidirectional Transmissive Acoustic Metasurfaces Based on Goldberg Polyhedra
Advanced Functional Materials, EarlyView.This study introduces omnidirectional acoustic metasurfaces capable of manipulating wavefronts in multiple arbitrary directions simultaneously. A full‐stack pipeline for design, optimization, and fabrication is presented to construct near‐spherical holograms based on Goldberg polyhedra.
Andrea Achilleos +3 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.Nanobubbles functionalized with indocyanine green and ischemic myocardium‐targeting peptide effectively target cardiomyocytes and enable the multimodal (fluorescence, ultrasonic, and photoacoustic) imaging of ischemic myocardium in mice with coronary microvascular dysfunction (CMD).
Bo Yu +8 more
wiley +1 more source
Enhancing Ultrasound Power Transfer: Efficiency, Acoustics, and Future Directions
Advanced Materials, EarlyView.Implantable devices significantly enhance healthcare but are limited by battery life. Ultrasound power transfer technology offers a promising solution for sustainable operation. This review addresses gaps in current research, particularly in sound field analysis and energy efficiency optimization.
Yi Zheng +6 more
wiley +1 more source
Journal of Marine Science and EngineeringIn the context of multi-array multi-target bearing-only localization, due to the existence of direction-finding errors, the crossing results of bearing lines cannot accurately determine correspondence with targets.
Chuanxing Hu +4 more
doaj +1 more source