Results 51 to 60 of about 8,076 (193)

Enhancement of Particle Image Velocimetry Images

, 2020
Particle Image Velocimetry (PIV) is a method to visualize the flows and quantitatively map the flows. It is used to obtain the instantaneous velocity, vorticity, divergence, shear in fluids, etc. Laser Doppler velocimetry and hot wire anemometry are other techniques that are used to measure the flow. The main difference between PIV and those techniques
Anand, S., Poovitha, R., Nikhila, K.
openaire   +2 more sources

Labeling Strategies for Monitoring Cytoskeleton Dynamics in Cultured Epithelial Cells

Cytoskeleton, EarlyView.
ABSTRACT Collective cell migration relies on coordinated cytoskeletal remodeling, yet the impact of live‐cell actin filament probes on these dynamics remains poorly characterized. Here, we systematically compared the performance and cellular effects of fluorogenic jasplakinolide‐based probes, SiR‐actin and SiR‐XActin, with the genetically encoded ...
Victoria Levario‐Diaz, Lakshmi Nyapathi‐Gopinath, Jonah Luka Voigt, Katharina Weber, Marlene Maager, Veselin Nasufovic, Elisabetta Ada Cavalcanti‐Adam   +6 more
wiley   +1 more source

Improvement in the Number of Velocity Vector Acquisitions Using an In-Picture Tracking Method for 3D3C Rainbow Particle Tracking Velocimetry

Fluids
Particle image velocimetry and particle tracking velocimetry (PTV) have developed from two-dimensional two-component (2D2C) velocity vector measurements to 3D3C measurements.
Mao Takeyama, Kota Fujiwara, Yasuo Hattori   +2 more
doaj   +1 more source

Acoustic‐driven surface cleaning with millimeter‐sized bubbles at translational resonance

Droplet, EarlyView.
Time‐lapse visualization comparing bubble trajectories. The top panel (0 Hz) shows a bubble's linear path under no acoustic forcing, while the bottom panel (50 Hz) demonstrates the oscillatory motion induced by acoustic waves at a resonance mode. This mechanism holds promising potential for applications such as surface cleaning.
Yan Jun Lin, Zhengyang Liu, Sunghwan Jung   +2 more
wiley   +1 more source

Characterization of extrusion flow using particle image velocimetry

eXPRESS Polymer Letters, 2009
The aim of this study was the characterization of polymer flows within an extrusion die using particle image velocimetry (PIV) in very constraining conditions (high temperature, pressure and velocity).
doaj   +1 more source

Localized 3D acoustic streaming in microdroplets using high‐frequency micro‐beam IDTs

Droplet, EarlyView.
Miniaturized 160 MHz acoustic microbeam transducers, with a size much smaller than droplets, enable precise localized actuation, generating complex three‐dimensional streaming and tunable particle aggregation. This concept provides high‐resolution, non‐contact fluid manipulation for biosensing, lab‐on‐chip diagnostics, and targeted drug screening ...
D. Sánchez‐Saldaña, M. Fernandino, C.A. Dorao   +2 more
wiley   +1 more source

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

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

Investigation on tunnel stability considering pipe‐roof support with transparent soil technology

Deep Underground Science and Engineering, EarlyView.
This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia, Yunpeng Ji, Zhao Lu, Honghua Zhao, Limin Zhang   +4 more
wiley   +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