Results 41 to 50 of about 8,076 (193)

The effect of terminal impedance on aortic morphology and hemodynamics: an in vitro phantom study using flow field visualization

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
To investigate the risk factors for aortic dissection tearing, we fabricated a simplified patient-specific aortic silicone phantom using the brush-spin-coating method.
Huimin Chen   +6 more
doaj   +1 more source

Flow characteristics and regime transitions in fluidization systems of Group C+ particles

open access: yesAIChE Journal, EarlyView.
Abstract Fine and ultrafine particles are attractive for fluidized bed reactors because their high surface area benefits catalytic processes, but their cohesive nature complicates regime characterization. Nanoparticle modulation improves the flowability of Group C powders, yet their bubbling to turbulent transition remains unclear.
Yue Song   +3 more
wiley   +1 more source

An Intelligent Microfluidics Enabled by Data‐Driven Deep Learning‐Based Microrobot‐Assisted Flow Manipulation

open access: yesAdvanced Intelligent Systems, EarlyView.
An AI‐enabled micromixing framework is developed by integrating cGAN with Bayesian optimization for predictive control of microrobot‐driven flow manipulation. Through this framework, the spatiotemporal evolution of micromixing is learned directly from experimental images, while rapid identification of optimized microrobot actuation strategies is ...
Dineshkumar Loganathan, Chia‐Yuan Chen
wiley   +1 more source

Particle Image Velocimetry in practice

open access: yes, 2009
Experimental fluid mechanics has for a long time been used to visualize flow phenomenon. An early pioneer was Ludwig Prandtl who used aluminum particles in water flumes to describe the flow in a qualitative manner. In line with the rapid development of Computational Fluid Dynamics, CFD, the need for new validation tools has increased.
openaire   +2 more sources

Comparative Study of Gas and Liquid Flow in Packed Beds Using Phase‐Contrast MRI

open access: yesChemie Ingenieur Technik, EarlyView.
This work presents applications of phase‐contrast magnetic resonance imaging (MRI) to investigate fluid flow fields and temperature in packed beds. Comparison of ethane (C2H6) gas flow with that of water flow is done at similar flow conditions. The temperature of water is also measured using MRI.
Maitreyi Sangal   +4 more
wiley   +1 more source

X-Ray imaging method for in-situ study of particle-laden flows

open access: yese-Journal of Nondestructive Testing
 The accurate measurement of flow parameters often depends on sensor accessibility. Optical flow assessment techniques, such as Particle Image Velocimetry (PIV) and Particle Tracking Velocimetry (PTV), are limited to optically transparent media. However,
Julian Kattinger   +5 more
doaj   +1 more source

Particle Image Techniques for Measuring Instantaneous Bed Shear Stress in Open Channel Flows

open access: yes工程科学与技术, 2022
Measurement of instantaneous bed shear stress in open channel flows is challenging but extremely important. In order to accurately measure the instantaneous bed shear stress with particle image techniques, synthesized particle images with different image
Qigang CHEN   +5 more
doaj  

Review of CFD modelling techniques for single‐phase and multiphase flow in static mixers

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
This review synthesizes computational fluid dynamics (CFD) approaches for static mixers, linking hydrodynamics to pressure drop, particle/droplet distributions, mixing metrics, and heat‐transfer performance to guide modelling choices and design decisions. Abstract Static mixers enable compact and low‐energy intensification.
Jussan Jaeger   +7 more
wiley   +1 more source

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

open access: yesCytoskeleton, 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   +7 more
wiley   +1 more source

Primary analysis of the trajektory of floating particles in compound channel

open access: yesActa Scientiarum Polonorum. Formatio Circumiectus, 2020
Aim of the study: The aim of the study was to determine the parameters of the stream transport capacity using turbulent diffusion coefficients using the imaging technique and to compare them with the coefficients obtained as a result of the measurement ...
Marcin Krukowski, Piotr Siwicki
doaj   +1 more source

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