Results 91 to 100 of about 129,142 (267)
Acoustics, 2019 This paper explores the acoustics of three UNESCO World Heritage Sites: five caves in Spain that feature prehistoric paintings that are up to 40,000 years old; Stonehenge stone circle in England, which is over 4000 years old; and Paphos Theatre in Cyprus,
R. Till
semanticscholar +1 more source
A Method to Improve the Resolution of the Acoustic Microscopy [PDF]
arXiv, 2017 In this report, we demonstrate a new principle to improve the resolution of the acoustic microscopy, which is based on the sub-wavelength focusing of acoustic wave passing through an acoustically transparent mesoscale particle. In the principle, the width of the acoustic focal area can be less than one wavelength.
arxiv
Journal of Marine Science and EngineeringWhen an airborne sound source is in rapid motion, the acoustic signal detected by the underwater sensor experiences a substantial Doppler shift. This shift is intricately linked to the motion parameters of the sound source.
Junjie Mao +6 more
doaj +1 more source
Harmonic acoustics for dynamic and selective particle manipulation
Nature Materials, 2022 Shujie Yang +12 more
semanticscholar +1 more source
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
BreathPrint: Breathing Acoustics-based User Authentication
ACM SIGMOBILE International Conference on Mobile Systems, Applications, and Services, 2017 We propose BreathPrint, a new behavioural biometric signature based on audio features derived from an individual's commonplace breathing gestures. Specifically, BreathPrint uses the audio signatures associated with the three individual gestures: sniff ...
Jagmohan Chauhan +5 more
semanticscholar +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
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