Results 1 to 10 of about 8,309 (143)

Ultrasonic Atomization: A Mechanism of Tissue Fractionation. [PDF]

open access: yesProc Meet Acoust, 2013
High intensity focused ultrasound (HIFU) can be used to atomize liquid by creating a fountain on the surface exposed to air. The mechanism of atomization can be most accurately described by the cavitation-wave hypothesis wherein a combination of capillary waves excited on the liquid surface with cavitation beneath the surface produces a fine spray ...
Simon JC   +5 more
europepmc   +4 more sources

Influence of crystallinity and particle size on the electrochemical properties of spray pyrolyzed Nd2NiO4+δ powders [PDF]

open access: yes, 2013
This paper is dedicated to the study of the relationship between the Nd2NiO4+ı powder micro-structural properties (especially particle size and crystallinity) and electrochemical properties when the oxide is used as SOFC cathode deposited on 8YSZ ...
Aymonier, Cyril   +5 more
core   +3 more sources

The Influence of geometrical and operational parameters on internal flow characteristics of Internally Mixing Twin-Fluid Y-Jet Atomizers [PDF]

open access: yes, 2019
Internally mixing twin-fluid Y-jet atomizers are widely used in coal fired thermal power plants for start-up, oil-fired thermal power plants and industrial boilers.
Ehmann, M.   +3 more
core   +1 more source

Breaking the Rayleigh-Plateau instability limit using thermocavitation within a droplet [PDF]

open access: yes, 2013
We report on the generation of liquid columns that extend far beyond the traditional Rayleigh-Plateau instability onset. The columns are driven by the acoustic pressure wave emitted after bubble collapse.
Aguilar, G   +5 more
core   +1 more source

Surface Waves on a Semi-toroidal Water Ring [PDF]

open access: yes, 2006
We study the dynamics of surface waves on a semi-toroidal ring of water that is excited by vertical vibration. We create this specific fluid volume by patterning a glass plate with a hydrophobic coating, which confines the fluid to a precise geometric ...
Bisch C.   +5 more
core   +2 more sources

Confinement of surface waves at the air-water interface to control aerosol size and dispersity [PDF]

open access: yes, 2017
The precise control over the size and dispersity of droplets, produced within aerosols, is of great interest across many manufacturing, food, cosmetic, and medical industries. Amongst these applications, the delivery of new classes of high value drugs to
Cooper, Jonathan   +5 more
core   +1 more source

Transient high-frequency ultrasonic water atomization

open access: yesExperiments in Fluids, 2002
An experimental study was performed to improve the understanding of the characteristics of ultrasonic water atomization when excited with waves in the MHz range. In the present experiments, small volumes of water were atomized, observing the temporal evolution of the process. Typical diameters of the resulting droplets are of
Barreras Toledo, Félix   +2 more
openaire   +2 more sources

Ultrasonication-Induced Aqueous Atom Transfer Radical Polymerization [PDF]

open access: yesACS Macro Letters, 2018
A new procedure for ultrasonication-induced atom transfer radical polymerization (sono-ATRP) in aqueous media was developed. Polymerizations of oligo(ethylene oxide) methyl ether methacrylate (OEOMA) and 2-hydroxyethyl acrylate (HEA) in water were successfully carried out in the presence of ppm amounts of CuBr2 catalyst and tris(2-pyridylmethyl)amine ...
Zhenhua Wang   +10 more
openaire   +2 more sources

Using Ultrasonic Atomization to Produce an Aerosol of Micron-scale Particles [PDF]

open access: yes, 2005
A device that uses ultrasonic atomization of a liquid to produce an aerosol of micron-scale droplets is described. This device represents a new approach to producing targets relevant to laser-driven fusion studies, and to rare studies of nonlinear optics
Bernoff, Andrew J.   +7 more
core   +2 more sources

Atomic Force Microscopy at Ultrasonic Frequencies [PDF]

open access: yesProceedings of IEEE Ultrasonics Symposium ULTSYM-94, 2005
We present a new type of near-field Acoustic Microscopy combining Atomic Force Microscopy (AFM) and Acoustic Microscopy. The lateral resolution is given by the probe diameter instead of the acoustic wavelength and can reach atomic scale on flat samples.
W. Arnold   +5 more
openaire   +2 more sources

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