Results 11 to 20 of about 27,465 (240)

Adaptive ensemble PTV [PDF]

open access: yesMeasurement Science and Technology, 2020
Abstract Ensemble particle tracking velocimetry (EPTV) is a method to extract high-resolution statistical information on flow fields from particle image velocimetry (PIV) images. The process is based on tracking particles and extracting the velocity probability distribution functions of the image ensemble in averaging-regions deemed ...
Marco Raiola   +3 more
openaire   +5 more sources

Synthetic PTV dataset

open access: yes, 2023
Synthetic dataset used in case 2 of: <insert paper link>
Patricio Clark Di Leoni   +4 more
openaire   +2 more sources

Urine Parameters in Patients with COVID-19 Infection

open access: yesLife, 2023
A urine test permits the measure of several urinary markers. This is a non-invasive method for early monitoring of potential kidney damage. In COVID-19 patients, alterations of urinary markers were observed.
Maria Morello   +6 more
doaj   +1 more source

Searching for the Rail Bonus

open access: yesEuropean Journal of Transport and Infrastructure Research, 2001
The inherent superiority of rail-based public transport options over bus-based alternatives, all other things being equal, has been stipulated in the literature and in the public policy discussion for some time.
K. W. Axhausen, T. Haupt, U. Heidl
doaj   +1 more source

3D-PTV Measuring onBubble and Liquid Velocities of a Single Bubble Jet

open access: yesJournal of Fluid Science and Technology, 2013
This experimental research concerns a simple air-bubblejet from a bottom nozzle in water. We try to conduct the measurements of the flow by applying a three-dimensional particle tracking velocimetry (3D-PTV) technique, in order to specify both bubble ...
Katsuya HIRATA   +3 more
doaj   +1 more source

A study on particle identification in PTV

open access: yesPROCEEDINGS OF HYDRAULIC ENGINEERING, 1996
Some algorithms for particle identification in PTV, which are classified in a category “particle mask correlation method”, are presented and tested. Atypical brightness pattern of a particle image is refered as a particle mask; it isplaced on an image plane and correlation coeficient between the particle mask and the image is calculated; the particle ...
Takeharu ETOH   +3 more
openaire   +4 more sources

3D-PTV measurement verified by UVP for unsteady and three-dimensional flow inside a suction sump

open access: yesJournal of Fluid Science and Technology, 2016
Our aim is to understand the complicated flow inside a suction sump in the vertical-wet-pit-pump configuration. The information of unsteady and three-dimensional flow structures is useful, not only for this complicated flow but also for other complicated
Katsuya HIRATA   +5 more
doaj   +1 more source

Surgical treatment of post-menopausal ovarian hyperandrogenism improves glucometabolic profile alongside clinical hirsutism

open access: yesSAGE Open Medical Case Reports, 2023
Hyperandrogenism during menopause is often underestimated by clinicians and attributed to the natural aging process. Hyperandrogenism can be associated with some metabolic abnormalities linked together in a vicious circle by insulin resistance.
Sofia De Taddeo   +12 more
doaj   +1 more source

Development of an infrared PTV

open access: yesJournal of the Visualization Society of Japan, 2002
The Infrared PTV (Particle Tracking Velocimetry) is proposed for applications to measurements of surface velocity fields of local water bodies, such as rivers, lakes, ponds, estuaries and coastal areas. The tracers are either ice particles or soaked and frozen flat edible cakes. The cameras are infrared sensitive.
ETOH, T. Goji   +3 more
openaire   +2 more sources

Basic Space Structure of Bubble-Jet Plume Using Consecutive 3D-PTV

open access: yesJournal of Fluid Science and Technology, 2009
This experimental research concerns the air-bubble-jet flow in water. We try to apply three-dimensional particle tracking velocimetry to the flow. Air bubbles are regarded as tracer particles.
Jiro FUNAKI   +3 more
doaj   +1 more source

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