Results 61 to 70 of about 194,912 (129)
The transition toward carbon-free combustion fuels such as hydrogen (H2) and ammonia (NH3) presents significant challenges related to flame stability and pollutant formation.
Kristen Morse +10 more
doaj +1 more source
Practical design of ultrasonic spray devices: experimental testing of several atomizer geometries
Ultrasonic atomization generates a mist-like uniform spray. Each particular application (air conditioning, drugs delivery, combustion....) has specific requirements in terms of mean droplet size, spray shape, spray velocity and liquid flow rate.
Bolle, Léon +2 more
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A micro ultrasonic motor using a micro-machined cylindrical bulk PZT transducer [PDF]
In this paper, a micro ultrasonic motor using a micro-machined bulk piezoelectric transducer is introduced. The cylindrical shaped bulk piezoelectric transducer, a diameter of 0.8 mm and a height of 2.2 mm, was developed as stator transducer for ...
Morita, Takeshi +5 more
core +1 more source
Ensuring the specified productivity of liquid media ultrasonic atomization
Relevance. Ultrasonic atomization is widely used in many areas of industry for processing liquid media and melts into particles of a given size, safe disposal of gas waste, and spray drying.
Vladimir N. Khmelev +3 more
doaj +1 more source
Performance of a micro-engineered ultrasonic particle manipulator
An ultrasonic microfluidic particle manipulator has been modeled and its experimentally measured separation performance has been compared with the modeled results for 1 µm latex particles, and yeast particles in ...
Hill, M. +12 more
core +1 more source
A silicon microfluidic ultrasonic separator
Ultrasonic standing waves can be used to generate forces on particles within a fluid. Such forces have a number of potential applications in microfluidic devices. This paper describes such a device providing filtration on a microfluidic scale.
Beeby, S. +7 more
core +1 more source
Ultrasonic Atomization of pMDI Wood Resin [PDF]
A novel, patent-pending approach to the application of wood resins based on an ultrasonic principle was developed in this study. Liquid polymeric methane diphenyl-diisocyanate (pMDI) resin was successfully atomized using a bench-scale 25 kHz ultrasonic ...
Gardner, Douglas J. +2 more
core +1 more source
Ultrasonic Reflection for Measurement of Oil Film Thickness and Contact between Dissimilar Materials [PDF]
The contact between dissimilar materials occurs in many machine elements where one of the contacting parts is manufactured from low modulus materials such as lip seals, o-rings, and metal on polymer prosthetic hip joints.
Gasni, Dedison
core
A dual frequency, ultrasonic, microengineered particle manipulator
Ultrasonic standing waves can be used to generate forces on particles within a fluid. Recent work has concentrated on developing devices that manipulate the particles so that they are concentrated near the centre of the cavity.
Hill, M. +5 more
core +1 more source
Position and velocity recovery from independent ultrasonic beacons [PDF]
In this paper we present a study on how to estimate the position of a mobile receiver using ultrasonic beacons fixed in the environment. Unlike traditional approaches, the ultrasonic beacons are independent, and positioning is performed by measuring the ...
Wilson, RE +3 more
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