Results 121 to 130 of about 28,654 (256)
Cavitation erosion from single acoustically driven bubbles
Ultrasonics SonochemistryAcoustic cavitation is achieved by exciting mechanical vibrations at ultrasonic frequencies, which in turn cause the formation of bubble clouds, followed by flows and emulsification.
Jaka Mur +3 more
doaj +1 more source
Cloud Cavitation: The Good, The Bad and the Bubbly [PDF]
, 2008 In many cavitating liquid flows, when the number and concentration of the bubbles exceeds some critical level, the flow becomes unsteady and large clouds of cavitating bubbles are periodically formed and then collapse when convected into regions of ...
Brennen, Christopher E.
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CO2‐Assisted Foaming of PLA–Cellulose Acetate Blends for Peat‐Free Horticultural Substrates
Polymer Engineering &Science, EarlyView.Engineered porous substrate facilitating seed incorporation, water retention, and plant growth. ABSTRACT This study investigates carbon dioxide assisted (CO2) foaming of polylactic acid (PLA)–cellulose acetate (CA) blends to develop biodegradable substrates for horticultural applications.
Kaleum Meaney +8 more
wiley +1 more source
A derivation of the stable cavitation threshold accounting for bubble-bubble interactions
Ultrasonics Sonochemistry, 2017 The subharmonic emission of sound coming from the nonlinear response of a bubble population is the most used indicator for stable cavitation. When driven at twice their resonance frequency, bubbles can exhibit subharmonic spherical oscillations if the acoustic pressure amplitude exceeds a threshold value.
Matthieu, Guédra +2 more
openaire +2 more sources
The Neuroprotective Effect of a Waste Byproduct Obtained From Pomegranate (Punica granatum)
Phytotherapy Research, EarlyView.The Effect of a Waste Byproduct Obtained From Pomegranate on Neurodegeneration. ABSTRACT Pomegranate is an exceptional fruit that can have several beneficial effects on human health. The peel of pomegranate, a waste product, should be recovered as it still contains valuable constituents, including phenolic compounds, minerals and fibre. The recovery of
Jessica Maiuolo +11 more
wiley +1 more source
Cavitation Scaling Experiments With Headforms: Bubble Acoustics [PDF]
, 1994 Recently Ceccio and Brennen [1][2][3] have examined the interaction between individual traveling cavitation bubbles and the structure of the boundary layer and flow field in which the bubble is growing and collapsing.
Brennan, C. +3 more
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Responsive Materials, EarlyView.We systematically summarize how each scale dictates fundamental choices in design feature, manufacturing technology, driving mechanism, and control strategy, which are inherently governed by scale‐dominated physical principles. Furthermore, the application of scale‐determined operation modes of microrobots across different stages of medical ...
Hang Yin +3 more
wiley +1 more source
Bubbly cavitating flow generation and investigation of its erosional nature for biomedical applications [PDF]
, 2009 This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
2nd Micro and Nano Flows Conference (MNF2009) +6 more
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Activatable smart contrast agents for photoacoustic imaging
Smart Molecules, EarlyView.This review highlights recent advances in smart activatable photoacoustic imaging (PAI) contrast agents, which dynamically modulate their optical properties in response to external stimuli or microenvironmental cues. It discusses their molecular design, activation mechanisms, biomedical applications, and future prospects for clinically tailored use ...
Donghyeon Oh +5 more
wiley +1 more source
Dynamics of cavitation bubbles in viscous liquids in a tube during a transient process
Ultrasonics SonochemistryWe experimentally, numerically, and theoretically investigate the dynamics of cavitation bubbles in viscous liquids in a tube during a transient process.
Zhichao Wang +5 more
doaj +1 more source