PIVlab – Towards User-friendly, Affordable and Accurate Digital Particle Image Velocimetry in MATLAB
William Thielicke,Eize Stamhuis +1 more
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TLDR
The accuracy of several algorithms was determined and the best performing methods were implemented in a user-friendly open-source tool for performing DPIV flow analysis in Matlab.Abstract:
Digital particle image velocimetry (DPIV) is a non-intrusive analysis technique that is very popular for mapping flows quantitatively. To get accurate results, in particular in complex flow fields, a number of challenges have to be faced and solved: The quality of the flow measurements is affected by computational details such as image pre-conditioning, sub-pixel peak estimators, data validation procedures, interpolation algorithms and smoothing methods. The accuracy of several algorithms was determined and the best performing methods were implemented in a user-friendly open-source tool for performing DPIV flow analysis in Matlab.read more
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Pulsatile contractions promote apoptotic cell extrusion in epithelial tissues.
TL;DR: In this paper, the authors show that cell extrusion is preceded by actomyosin contractions that are pulsatile, and that pulsatile contractions are induced by a junctional to medial re-localization of myosin.
Proceedings ArticleDOI
Influence of pressure on partial discharge spectra
TL;DR: In this article, the influence of the pressure on partial discharges and more particularly on the modification of partial discharge spectra with pressure was investigated. But the authors focused on the effect of the voltage waveform and sinusoidal voltage at various pressures.
Journal ArticleDOI
Flow and wall shear stress characterization after endovascular aneurysm repair and endovascular aneurysm sealing in an infrarenal aneurysm model
Johannes T. Boersen,Erik Groot Jebbink,Michel Versluis,Cornelis H. Slump,David N. Ku,Jean-Paul P.M. de Vries,Michel M.P.J. Reijnen +6 more
TL;DR: The different stent designs do not influence suprarenal flow and effects of a dual‐lumen configuration in the abdominal aorta after endovascular aneurysm sealing on flow and wall shear stress proximal and distal to the stents are focused on.
Journal ArticleDOI
Use of LSPIV in assessing urban flash flood vulnerability
TL;DR: Guillen, Nicolas Federico as discussed by the authors, N. Federico, N. Guillen et al., 2015. Instituto de Estudios Avanzados en Ingenieria and Tecnologia.
Journal ArticleDOI
Azobenzene-based sinusoidal surface topography drives focal adhesion confinement and guides collective migration of epithelial cells.
Chiara Fedele,Elina Mäntylä,Brian Belardi,Tiama Hamkins-Indik,Silvia Cavalli,Paolo A. Netti,Daniel A. Fletcher,Daniel A. Fletcher,Soile Nymark,Arri Priimagi,Teemu O. Ihalainen +10 more
TL;DR: It is shown that smooth topographical cues with proper period and orientation can efficiently orchestrate cell alignment in growing epithelium and indicate that the extracellular microenvironment topography coordinates their focal adhesion distribution and alignment.
References
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Journal ArticleDOI
The Design and Implementation of FFTW3
Matteo Frigo,Steven G. Johnson +1 more
TL;DR: It is shown that such an approach can yield an implementation of the discrete Fourier transform that is competitive with hand-optimized libraries, and the software structure that makes the current FFTW3 version flexible and adaptive is described.
Book
Particle Image Velocimetry: A Practical Guide
TL;DR: In this paper, the authors present a practical guide for the planning, performance and understanding of experiments employing the PIV technique, which is primarily intended for engineers, scientists and students, who already have some basic knowledge of fluid mechanics and nonintrusive optical measurement techniques.
Journal ArticleDOI
Particle-Imaging Techniques for Experimental Fluid Mechanics
TL;DR: A review of these methods can be found in articles by Lauterborn & Vogel (1984), Adrian (1986a), Hesselink (1988), and Dudderar et al..
Journal ArticleDOI
Adaptive histogram equalization and its variations
Stephen M. Pizer,Stephen M. Pizer,E. Philip Amburn,E. Philip Amburn,John D. Austin,Robert Cromartie,Ari Geselowitz,Ari Geselowitz,Trey Greer,Bart M. ter Haar Romeny,John B. Zimmerman,John B. Zimmerman +11 more
TL;DR: It is concluded that clipped ahe should become a method of choice in medical imaging and probably also in other areas of digital imaging, and that clip ahe can be made adequately fast to be routinely applied in the normal display sequence.
Journal ArticleDOI
Digital Particle Image Velocimetry
Christian Willert,Morteza Gharib +1 more
TL;DR: In this article, the directional ambiguity associated with PIV and LSV is resolved by implementing local spatial cross-correlations between two sequential single-exposed particle images, and the recovered velocity data are used to compute the spatial and temporal vorticity distribution and the circulation of the vortex ring.