Results 61 to 70 of about 194,912 (129)

Experimental characterization of a fuel-flexible burner with an integrated ultrasonic atomizer for low-carbon operation

open access: yesApplications in Energy and Combustion Science
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

open access: yes, 2002
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
core  

A micro ultrasonic motor using a micro-machined cylindrical bulk PZT transducer [PDF]

open access: yes, 2006
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

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов
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

open access: yes, 2004
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

open access: yes, 2002
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]

open access: yes, 2009
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]

open access: yes, 2012
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

open access: yes, 2004
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]

open access: yes, 2006
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
core  

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