Results 91 to 100 of about 29,383 (219)

Effect of Axial Agitator Configuration (Up-Pumping, Down-Pumping, Reverse Rotation) on Flow Patterns Generated in Stirred Vessels [PDF]

open access: yes, 2001
Single phase turbulent flow in a tank stirred with two different axial impellers - a pitched blade turbine (PBT) and a Mixel TT (MTT)- has been studied using Laser Doppler Velocimetry. The effect of the agitator configuration, i.e.
C. Xuereb   +22 more
core   +2 more sources

Placental insufficiency markers to assess the risk of non‐chromosomal genetic conditions in early‐onset fetal growth restriction

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 4, Page 492-499, April 2026.
ABSTRACT Objectives To assess the value of placental insufficiency markers for estimating the risk of genetic anomalies in fetuses with isolated early‐onset fetal growth restriction (FGR), defined as an estimated fetal weight ≤ 3rd percentile diagnosed ≤ 28 + 6 weeks' gestation.
M. Armengol‐Alsina   +17 more
wiley   +1 more source

Time-stretched photonic Doppler velocimetry

open access: yesOptics Express, 2019
Inertial confinement fusion facilities generate implosions at speeds greater than 100 km/s, and measuring the material velocities is important and challenging. We have developed a new velocimetry technique that uses time-stretched spectral interferometry to increase the measurable velocity range normally limited by the detector bandwidth.
J. G. Mance   +5 more
openaire   +2 more sources

Twist metrology with twisted light in fibers

open access: yesLight: Advanced Manufacturing
A recent breakthrough of optical metrology is the all-fiber rotational Doppler velocimetry using twisted light, which offers a compact, reciprocal, and ultra-broadband solution for measuring the angular velocity of rotating objects.
Yijie Shen
doaj   +1 more source

Measurement of XeI and XeII velocity in the near exit plane of a low-power Hall effect thruster by light induced fluorescence spectroscopy

open access: yes, 2013
Near exit plane non-resonant light induced fluorescence spectroscopy is performed in a Hall effect low-power Xenon thruster at discharge voltage of 250V and anode flow rate of 0.7mg/sec.
Baranov V.   +5 more
core   +1 more source

Laser Doppler Velocimetry [PDF]

open access: yesJournal of the Royal Society of Medicine, 1987
J F, Lancaster   +2 more
openaire   +2 more sources

Rotor-Obstacle Aerodynamic Interaction in Hovering Flight: An Experimental Survey [PDF]

open access: yes, 2016
Despite the presence of a fair number of numerical and experimental works on the rotor-obstacle interaction, a systematic study of the aerodynamic phenomena involved is lacking.
Giuni, Michea   +2 more
core  

Uncertainty assessment for a towed underwater stereo PIV system by uniform flow measurement

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2018
The present study aims to assess test uncertainty assessment method of nominal wake field measurement by a Stereoscopic Particle Image Velocimetry (SPIV) system in a towing tank.
Bum Woo Han   +4 more
doaj   +1 more source

Coherent microscopy and optical coherence tomography for biomedical applications [PDF]

open access: yes, 2011
This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
3rd Micro and Nano Flows Conference (MNF2011)   +1 more
core  

Doppler Global Velocimetry [PDF]

open access: yesMTZ - Motortechnische Zeitschrift, 2008
Thomas Seidel, Henry Steuker
  +4 more sources

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