Results 61 to 70 of about 16,946 (263)

Surface Acoustic Wave Humidity Sensor: A Review

open access: yesMicromachines, 2023
The Growing demands for humidity detection in commercial and industrial applications led to the rapid development of humidity sensors based on different techniques.
Maria Muzamil Memon   +4 more
doaj   +1 more source

SU-8 Guiding Layer for Love Wave Devices

open access: yes, 2007
SU-8 is a technologically important photoresist used extensively for the fabrication of microfluidics and MEMS, allowing high aspect ratio structures to be produced.
Nicola Doy   +15 more
core   +1 more source

Modeling sound propagation in acoustic waveguides using a hybrid numerical method [PDF]

open access: yes, 2008
Sound propagation in an acoustic waveguide is examined using a hybrid numerical technique. Here, the waveguide is assumed to be infinite in length with an arbitrary but uniform cross-section.
Kirby, R, Ray Kirby
core   +1 more source

The 2019 surface acoustic waves roadmap [PDF]

open access: yesJournal of Physics D: Applied Physics, 2019
Abstract Today, surface acoustic waves (SAWs) and bulk acoustic waves are already two of the very few phononic technologies of industrial relevance and can been found in a myriad of devices employing these nanoscale earthquakes on a chip. Acoustic radio frequency filters, for instance, are integral parts of wireless devices.
Per Delsing   +38 more
openaire   +10 more sources

Vacuum Formed Spherical Triboelectric Architecture Overcoming Direction Constraints for 3D‐Omnidirectional Ultrasonic Energy Receiving

open access: yesAdvanced Functional Materials, EarlyView.
First vacuum formed spherical triboelectric converter for 3D‐omnidirectional ultrasonic energy receiving, with configurable DC or pulse outputs for versatile applications. ABSTRACT Ultrasound‐driven triboelectric nanogenerators (UD‐TENGs) have emerged as promising ultrasonic energy converters for underwater and biomedical applications.
Yanqin Huang   +12 more
wiley   +1 more source

Theoretical Investigations of the Ultrasonic Wave Generation by an Electromagnetic Acoustic Transducer

open access: yesНаукові вісті Національного технічного університету України "Київський політехнічний інститут", 2018
Background. The article considers the analysis of the electromagnetic acoustic (EMA) converter with controlled angular input of acoustic waves, using parameters influencing the formation of an acoustic wave. Objective.
Gregory S. Tymchik   +2 more
doaj   +1 more source

The design and modeling of a lateral acoustic particle manipulator exhibiting quarter-wave operation

open access: yes, 2008
Prior work [Petersson et al., 2004] has demonstrated the operation of a half-wave acoustic particle manipulator, whose forces act in the plane of a silicon substrate. In a half-wave device particles are directed to the centre of a channel. Devices acting
Peter Glynne-Jones   +14 more
core   +1 more source

Near field enhancements from angled surface defects : a comparison of scanning laser source and scanning laser detection techniques [PDF]

open access: yes, 2011
Enhancement of the Rayleigh wave signal amplitude at a surface defect, due to interference of incident, reflected and mode converted waves, has been reported by several authors, and it has been suggested that this could be used as a fingerprint of the ...
Edwards, R. S. (Rachel S.)   +5 more
core   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

Water Surface Acoustic Wave Detection by a Millimeter Wave Radar

open access: yesRemote Sensing, 2023
Feature extraction and recognition of underwater targets are important in military and civilian areas. This paper studied water surface acoustic wave (WSAW) detection by a millimeter wave (mmWave) radar.
Yuming Zeng, Siyi Shen, Zhiwei Xu
doaj   +1 more source

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