Grid turbulence studied by Particle Image Velocimetry [PDF]
EPJ Web of Conferences, 2022 We studied the grid-generated turbulence by using Particle Image Velocimetry (PIV) technique. We test on this already well studied flow the new ways of analyzing spatially resolved PIV data, such as the spatial spectra and structure functions. We compare
Duda Daniel +3 more
doaj +1 more source
Full-field interferometry using infinity corrected optics [PDF]
, 2015 In this paper the construction of full-field (imaging) interferometers using infinity corrected optics commonly used in microscopy is discussed, with an emphasis on self-mixing interferometry configurations where the imaged light field is mixed with ...
Charrett, Thomas O. H., Tatam, Ralph P.
core +1 more source
A sex specific approach of ophthalmic and middle cerebral arteries Doppler in smokers
Scientific Reports, 2021 Vascular dysfunctions can progress and lead to stroke and cardiovascular disease, especially in smokers. The presence of particular vascular changes according to sex has been described and they can be identified by the Doppler method.
Maria Marta B. M. Paes +2 more
doaj +1 more source
Rotational Doppler velocimetry to probe the angular velocity of spinning microparticles [PDF]
, 2014 Laser Doppler velocimetry is a technique used to measure linear velocity, ranging from that of exhaust gases to blood flow. A rotational analog of laser Doppler velocimetry was recently demonstrated, using a rotationally symmetric interference pattern to
Barnett, S. M. +7 more
core +1 more source
Investigation by laser doppler velocimetry of the effects of liquid flow rates and feed positions on the flow patterns induced in a stirred tank by an axial-flow impeller [PDF]
, 2002 The (ow patterns established in a continuously-fed stirred tank, equipped with a Mixel TT axial-(ow impeller, have been investigated bylaser Doppler velocimetry, for a high and a low value of mean residence time—mixing time ratio.
Bertrand, Joël +3 more
core +2 more sources
Doppler changes as the earliest parameter in fetal surveillance to detect fetal compromise in intrauterine growth-restricted fetuses [PDF]
Srpski Arhiv za Celokupno Lekarstvo, 2016 Introduction. It is estimated that 3-10% of infants are growth restricted. Growth disturbances may have long-term issues. Doppler allows insight into the fetal response to intrauterine stress. Objective. The aim of this study was to detect fetal
Bansal Saloni +3 more
doaj +1 more source
Compensatory Feto-Placental Upregulation of the Nitric Oxide System during Fetal Growth Restriction [PDF]
, 2012 Background: Fetal Growth Restriction is often associated with a feto-placental vascular dysfunction conceivably involving endothelial cells. Our study aimed to verify this pathogenic role for feto-placental endothelial cells and, coincidentally ...
Begliuomini, Silvia +11 more
core +3 more sources
Triplex Doppler evaluation of the testes in dogs of different sizes
Pesquisa Veterinária Brasileira, 2014 This study aimed to assess whether there are differences in Doppler velocimetry parameters between different sizes. Twenty dogs were equally divided into small and large groups used in this study.
Mírley B. Souza +7 more
doaj +1 more source
New Measurements of Venus Winds with Ground-Based Doppler Velocimetry at CFHT [PDF]
, 1996 operations with observations from the ground using various techniques and spectral domains (Lellouch and Witasse, 2008). We present an analysis of Venus Doppler winds at cloud tops based on observations made at the Canada France Hawaii 3.6-m telescope ...
Allan, JF +5 more
core +1 more source
Photonic doppler velocimetry [PDF]
, 1999 We are developing a novel fiber-optic approach to laser Doppler velocimetry as a diagnostic for high explosives tests. Using hardware that was originally developed for the telecommunications industry, we are able to measure surface velocities ranging from centimeters per second to kilometers per second.
Lowry, M. E. +4 more
openaire +2 more sources