Results 71 to 80 of about 27,207 (230)

Tomographic Particle Image Velocimetry using Smartphones and Colored Shadows

Scientific Reports, 2017
We demonstrate the viability of using four low-cost smartphone cameras to perform Tomographic PIV. We use colored shadows to imprint two or three different time-steps on the same image.
Andres A. Aguirre-Pablo, Meshal K. Alarfaj, Er Qiang Li, J. F. Hernández-Sánchez, Sigurdur T. Thoroddsen   +4 more
doaj   +1 more source

Systematic Error of Acoustic Particle Image Velocimetry and Its Correction

Metrology and Measurement Systems, 2014
Particle Image Velocimetry is getting more and more often the method of choice not only for visualization of turbulent mass flows in fluid mechanics, but also in linear and non-linear acoustics for non-intrusive visualization of acoustic particle ...
Mickiewicz Witold
doaj   +1 more source

Particle reconstruction of volumetric particle image velocimetry with the strategy of machine learning

Advances in Aerodynamics, 2021
Three-dimensional particle reconstruction with limited two-dimensional projections is an under-determined inverse problem that the exact solution is often difficult to be obtained.
Qi Gao, Shaowu Pan, Hongping Wang, Runjie Wei, Jinjun Wang   +4 more
doaj   +1 more source

Particle image velocimetry

, 1993
This document describes the development of a new flow visualization and measurement facility that incorporates a sheet of laser light and digital image enhancement and processing techniques. A simple bench test that was used to demonstrate the feasibility of such techniques is also described.
openaire   +3 more sources

Aligning Real‐Time Recurrence Computational Fluid Dynamics Simulations with Plant Data for the Ruhrstahl–Heraeus Degassing Process of Steel

steel research international, EarlyView.
Uncertainties exist in computational fluid dynamics (CFD) modeling of complex metallurgical processes, even when partly validated by laboratory experiments. rCFD enables computationally efficient prediction of long‐term RH degassing and can be adapted to vary flow conditions.
Xiaomeng Zhang, Maria Thumfart, Roman Rössler, Stefan Pirker   +3 more
wiley   +1 more source

An experimental study of particle sedimentation using ultrasonic speckle velocimetry [PDF]

, 2010
Ultrasonic speckle velocimetry (USV) is a non-invasive technique that allows the measurement of fluid velocity in flow and also that of powders under sedimentation.
Delaunay, Thomas, Tordjeman, Philippe, Chinaud, Maxime   +2 more
core   +1 more source

Loss of particle ratio metric for particle image velocimetry accuracy estimation

Acta Polytechnica
This paper presents an algorithm for evaluating measurement uncertainty at individual points within the Particle Image Velocimetry (PIV) method. The algorithm presents a novel correlation plane metric known as the Loss of Particle Ratio (LPR).
Jan Novotný, Ludmila Nováková, Ilona Machovská, Miloš Kašpárek   +3 more
doaj   +1 more source

Mechanical stiffness orchestrates distinct regulation of MRTFs and YAP/TAZ transcriptional cofactors in hepatocytes

The FEBS Journal, EarlyView.
MRTFs and YAP/TAZ proteins, or mechanosensitive transcriptional cofactors (MRTcoF), regulate common genes associated with cellular contractility and immune cell infiltration. Their differential regulation in response to stiffness is linked to changes in hepatocyte's aspect ratio. MRTFB does not undergo nuclear translocation under these conditions. This
Brenda Selene Torres‐Ortiz, Daniel Pérez‐Calixto, Jorge Carretero‐Ortega, Aida Gabriela Guzman‐López, Diana Cristina Pinto‐Dueñas, Mariana Hernández‐Juárez, Alejandra Jiménez‐Escobar, Adriana Rodríguez‐Hernández, Beatriz Díaz‐Bello, Nathalia Serna‐Márquez, Miguel Ángel Peña‐Rico, Laura Gómez‐Romero, Francisco Gabriel Vázquez‐Cuevas, Genaro Vázquez‐Victorio   +13 more
wiley   +1 more source

Information Entropy Analysis of a PIV Image Based on Wavelet Decomposition and Reconstruction

Entropy
In particle image velocimetry (PIV) experiments, background noise inevitably exists in the particle images when a particle image is being captured or transmitted, which blurs the particle image, reduces the information entropy of the image, and finally ...
Zhiwu Ke, Wei Zheng, Xiaoyu Wang, Mei Lin   +3 more
doaj   +1 more source

Investigation on spatial breakup characteristics of low-pressure jets with particle image velocimetry experiment and volume of fluid–level set simulation

Advances in Mechanical Engineering, 2016
In order to study the spatial breakup characteristics of the initial section of low-pressure jets, an experiment was performed to investigate the flow fields and concentration fields of jet flows with different nozzle geometric parameters and also the ...
Yue Jiang, Hong Li, Qingjiang Xiang, Chao Chen   +3 more
doaj   +1 more source