Results 1 to 10 of about 18,651 (171)

Measurement of Electrokinetically induced hydrodynamics at Ion-selective interfaces using 3D Micro particle tracking velocimetry (µPTV) [PDF]

open access: yesMethodsX, 2022
: Electrokinetic flow phenomena are ubiquitous in electrical systems for desalination, chemical conversion, or mixing at a micro-scale. However, the important features of resulting 3D flow fields are only accessible through cost-intensive numerical ...
Felix Stockmeier   +5 more
doaj   +2 more sources

Particle Imaging Velocimetry with Color-Encoded Illumination: A Review [PDF]

open access: yesSensors
High-resolution and three-dimensional measurements at large scales represent a crucial frontier in flow diagnostics. Color-encoded illumination particle imaging velocimetry has emerged as a promising non-contact volumetric measurement technique in recent
Yizhu Wang   +4 more
doaj   +2 more sources

Gaussian process post-processing for particle tracking velocimetry. [PDF]

open access: yesBiomed Opt Express, 2019
Particle tracking velocimetry (PTV) gives quantitative estimates of fluid flow velocities from images. But particle tracking is a complicated problem, and it often produces results that need substantial post-processing. We propose a novel Gaussian process regression-based post-processing step for PTV: The method smooths ("denoises") and densely ...
Tang T, Deniz E, Khokha MK, Tagare HD.
europepmc   +3 more sources

Quantification of Vortex Generation Due to Non-Equilibrium Electrokinetics at the Micro/Nanochannel Interface: Particle Tracking Velocimetry [PDF]

open access: yesMicromachines, 2016
We describe a quantitative study of vortex generation due to non-equilibrium electrokinetics near a micro/nanochannel interface. The microfluidic device is comprised of a microchannel with a set of nanochannels.
Seung Jun Lee   +4 more
doaj   +2 more sources

3D scanning particle tracking velocimetry [PDF]

open access: yesExperiments in Fluids, 2018
In this article, we present an experimental setup and data processing schemes for 3D scanning particle tracking velocimetry (SPTV), which expands on the classical 3D particle tracking velocimetry (PTV) through changes in the illumination, image ...
Guala, Michele   +5 more
core   +4 more sources

Enhanced ultrasound particle image velocimetry (E-uPIV) enables fast flow mapping of microvasculature [PDF]

open access: yesCommunications Engineering
Ultrasound particle image velocimetry (uPIV) has emerged as a widely-used tool for measuring blood flow fields with higher sensitivity and accuracy.
Jingyi Yin   +4 more
doaj   +2 more sources

Measuring particle charges in high electric fields of gas insulation systems using tracking velocimetry [PDF]

open access: yesScientific Reports
The electric charges of particles are a decisive factor influencing their behavior in electric fields, particularly in high-voltage gas insulation systems.
Hans-Christoph Töpper   +1 more
doaj   +2 more sources

Holographic Astigmatic Particle Tracking Velocimetry [PDF]

open access: yesMeasurement Science and Technology, 2019
The formation of twin images in digital inline holography (DIH) prevents the placement of the focal plane in the center of a sample volume for DIH-based particle tracking velocimetry (DIH-PTV) with a single camera. As a result, it is challenging to apply DIH-PTV for flow measurements in large-scale laboratory facilities or many field applications where
Zhou, Zhou   +4 more
openaire   +3 more sources

X-ray Particle Tracking Velocimetry in an Overflowing Foam

open access: yesApplied Sciences, 2023
In mineral processing, froth flotation is based on recovering valuable mineral particles by means of the overflowing froth. Industrial-scale froth flotation cells are typically equipped with optical measurement systems, which monitor the bubble sizes and
Tobias Lappan   +7 more
doaj   +1 more source

Volumetric particle tracking velocimetry (PTV) uncertainty quantification [PDF]

open access: yesExperiments in Fluids, 2020
We introduce the first comprehensive approach to determine the uncertainty in volumetric Particle Tracking Velocimetry (PTV) measurements. Volumetric PTV is a state-of-the-art non-invasive flow measurement technique, which measures the velocity field by recording successive snapshots of the tracer particle motion using a multi-camera set-up.
Sayantan Bhattacharya, Pavlos P. Vlachos
openaire   +2 more sources

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