Results 61 to 70 of about 41,901 (252)

Particle image velocimetry studies of bubble growth and detachment by high speed photography

, 1997
An understanding of bubble flows is important in the design of process equipment, particularly in the chemical and power industries. In vapour-liquid processes the mass and heat transfer between the phases is dominated by the liquid-vapour interface and ...
Lee Lothian, Dempster, W.M., Mathew Stickland, William Dempster, Lothian, Lee, Stickland, M.T., Andrew Oldroyd, Dempster, William, Stickland, Matthew, Oldroyd, Andrew   +9 more
core   +1 more source

Photonic Doppler velocimetry probe used to measure grain boundaries of dynamic shocked materials [PDF]

, 2017
Author Institution: Mission Support and Test Services, LLC; Los Alamos National LaboratorySlides presented at the 2018 Photonic Doppler Velocimetry (PDV) Users Workshop, Drury Plaza Hotel, Santa Fe, New Mexico, May 16-18 ...
Malone, Robert M., Morris I. Kaufman, David R. Jones, Kaufman, Morris I., Saryu J. Fensin, Kevin D. McGillivray, Clarke, Steven A., Robert M. Malone, McGillivray, Kevin D., Daniel K. Frayer, Fensin, Saryu J., Jones, David R., Steven A. Clarke, Romero, Vincent T., Frayer, Daniel K.   +14 more
core   +1 more source

Particle Data Management Software for 3DParticle Tracking Velocimetry and Related Applications – The Flowtracks Package

Journal of Open Research Software, 2016
The Particle Tracking Velocimetry (PTV) community employs several formats of particle information such as position and velocity as function of time, i.e. trajectory data, as a result of diverging needs unmet by existing formats, and a number of different,
Yosef Meller, Alex Liberzon
doaj   +1 more source

Cteno‐Bot: An Untethered Metachronally Swimming Robot With Magnetoactive Propulsors

Advanced Intelligent Systems, EarlyView.
We present Cteno‐bot, an untethered ctenophore‐inspired robot which swims using metachronally coordinated appendages. A single mechanism controls up to 216 magnetoactive propulsors via a dynamically varying magnetic field. We show that the swimming speed of the robot can be increased without a corresponding increase in power requirement, simply by ...
David J. Peterman, Margaret L. Byron
wiley   +1 more source

Application of digital particle image velocimetry to insect aerodynamics: measurement of the leading-edge vortex and near wake of a Hawkmoth [PDF]

, 2007
Some insects use leading-edge vortices to generate high lift forces, as has been inferred from qualitative smoke visualisations of the flow around their wings.
Taylor, Graham K., Bomphrey, Richard J., Thomas, Adrian L. R., Lawson, Nicholas J.   +3 more
core   +1 more source

Doppler-Based Flow Rate Sensing in Microfluidic Channels

Sensors, 2014
We design, fabricate and experimentally demonstrate a novel generic method to detect flow rates and precise changes of flow velocity in microfluidic devices. Using our method we can measure flow rates of ~2 mm/s with a resolution of 0.08 mm/s.
Liron Stern, Avraham Bakal, Mor Tzur, Maya Veinguer, Noa Mazurski, Nadav Cohen, Uriel Levy   +6 more
doaj   +1 more source

Canine brachycephalic obstructive airway syndrome as a model for studying the effects of obstructive sleep apnea during pregnancy

Animal Models and Experimental Medicine, EarlyView.
We observed a negative effect of brachycephalic obstructive airway syndrome (BOAS) in a staggered manner based on the severity of the condition on respiratory and cardiac patterns, glycemia, acid–base balance, fetal growth, and uterine artery hemodynamics, thus requiring adaptations within the fetal–placental unit. Severely affected bitches had uterine
Roberto Rodrigues da Rosa Filho, Thayná Pantoja Gardés, Maíra Morales Brito, Leticia Lima de Almeida, Camila Infantosi Vannucchi   +4 more
wiley   +1 more source

3D planar velocity measurements, using Mach-Zehnder interferometric-filter-based planar Doppler velocimetry (MZI-PDV) and imaging fibre bundles [PDF]

, 2008
Three component planar flow-field measurements are made using imaging fibre bundles to port different views of the measurement plane, defined by a laser light sheet, to a single imaging head.
Charrett, Thomas O. H., H. D. Ford, R. P. Tatam, Lu, Z. H., T. O. H. Charrett, Tatam, Ralph P., Z. H. Lu, Ford, Helen D.   +7 more
core   +1 more source

Complexity Analysis of Bubble Plumes in Power Law Fluids Based on Chaos Theory

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In order to reveal the complexity of the internal flow of bubble plume in power law fluid, the flow characteristics and chaotic characteristics of plume are studied by experiment and theory. The chaotic characteristic parameters (correlation dimension D, K entropy, and Lyapunov exponent λ) of gas velocity under different superficial gas ...
Xin Dong, Chong Dong, Can Xue, Meiheng Peng, Ying Feng, Jianwei Zhang, Yinuo Liu   +6 more
wiley   +1 more source

The Influence of Drosophila Spire and Myosin V During Mid‐Oogenesis Is Independent of Their Direct Interaction

Cytoskeleton, EarlyView.
ABSTRACT Cooperativity between cytoskeletal proteins is crucial for spatiotemporal coordination in biological processes, like oogenesis. In mammalian and Drosophila oogenesis, proper assembly and function of actin networks require coordination between actin assembly factors Spire and formins, as well as actin‐associated proteins like myosins and Rab ...
Joseph Y. Ong, Hannah M. Bailey, Emma Carley, Michelle Panzica, Merin Rixen, Neil Billington, Rong Liu, Margot E. Quinlan   +7 more
wiley   +1 more source