Results 41 to 50 of about 18,690 (210)

General Defocusing Particle Tracking: fundamentals and uncertainty assessment

open access: yes, 2020
General Defocusing Particle Tracking (GDPT) is a single-camera, three-dimensional particle tracking method that determines the particle depth positions from the defocusing patterns of the corresponding particle images.
Barnkob, Rune, Rossi, Massimiliano
core   +1 more source

Beyond Janus Geometry: Characterization of Flow Fields around Nonspherical Photocatalytic Microswimmers

open access: yesAdvanced Science, 2022
Catalytic microswimmers that move by a phoretic mechanism in response to a self‐induced chemical gradient are often obtained by the design of spherical janus microparticles, which suffer from multi‐step fabrication and low yields.
Sandra Heckel   +6 more
doaj   +1 more source

Science‐Towards‐Technology Breakthrough in CO2 Electroreduction: Multiphysics, Multiscale, and Artificial Intelligence Insights

open access: yesAdvanced Materials, EarlyView.
Electrochemical CO2RR is a key technology for converting CO2 into chemicals, but there remains a gap between “laboratory science” and “engineering practice” in current research. This review establishes a multi‐scale research framework, encompassing atomic‐level characterization, microenvironment regulation, external field‐assisted optimization, and AI ...
Ping Hong   +3 more
wiley   +1 more source

Near-wall nanovelocimetry based on Total Internal Reflection Fluorescence with continuous tracking

open access: yes, 2014
The goal of this work is to make progress in the domain of near-wall velocimetry. The technique we use is based on the tracking of nanoparticles in an evanescent field, close to a wall, a technique called TIRF (Total Internal Reflection Fluorescence ...
Bresson, Bruno   +8 more
core   +3 more sources

Mixing in convective thermal fluxes in unsteady nonhomogeneous flows generating complex three dimensional vorticity patterns [PDF]

open access: yes, 2016
Diffusion and scaling of the velocity and vorticity in a thermoelectric driven heating and cooling experimental device is presented in order to map the different patterns and transitions between two and three dimensional convection in an enclosure with ...
Lopez Gonzalez-Nieto, Pilar   +3 more
core   +2 more sources

Ejecta‐Modulated Bubble Dynamics Play a Dominant Role in Stone Retropulsion

open access: yesAdvanced Science, EarlyView.
Stone motion during laser ablation is shown to result primarily from asymmetric cavitation bubble collapse, not from ejecta recoil. This challenges long‐standing assumptions and highlights the dominant role of bubble dynamics in laser–material interactions.
Obed S. Isaac   +4 more
wiley   +1 more source

New Algorithms in Particle Tracking Velocimetry

open access: yesJournal of the Visualization Society of Japan, 1999
New algorithms have been implemented and tested for the use in particle tracking velocimetry (PTV). These new algorithms have been introduced mainly in the part of particle tracking itself, but as well as in the preceding part of individual particles extraction.
Kazuo Ohmi, Hang Yu Li
openaire   +2 more sources

Microfluidic Mixing with the Dynamic Control of Magnetic Actuation

open access: yesAdvanced Intelligent Systems, EarlyView.
Schematic illustration and flow field visualization of magnetically actuated L‐shaped microrobots displaying cooperative vortex generation for enhanced microscale mixing. The left side shows the electromagnetic actuation setup, which enables programmable control of rotational direction and frequency.
Prashant Kishor Sharma   +2 more
wiley   +1 more source

Micro-Scale Particle Tracking: From Conventional to Data-Driven Methods

open access: yesMicromachines
Micro-scale positioning techniques have become essential in numerous engineering systems. In the field of fluid mechanics, particle tracking velocimetry (PTV) stands out as a key method for tracking individual particles and reconstructing flow fields ...
Haoyu Wang   +2 more
doaj   +1 more source

Part2Track: A MATLAB package for double frame and time resolved Particle Tracking Velocimetry

open access: yesSoftwareX, 2020
Within this paper we present Part2Track, a MATLAB software package for the evaluation of 2D Particle Tracking Velocimetry (PTV) measurements. Part2Track is not only capable of handling time resolved image series but also double frame image sets, which ...
T. Janke, R. Schwarze, K. Bauer
doaj   +1 more source

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