A Quality Control Method for Broad-Beam HF Radar Current Velocity Measurements
This paper describes a method to provide quality control for radial velocity maps derived from radar echo voltage cross spectra measured by broad-beam high frequency radars.
Belinda Lipa +2 more
doaj +1 more source
A mathematical and numerical framework for ultrasonically-induced Lorentz force electrical impedance tomography [PDF]
We provide a mathematical analysis and a numerical framework for Lorentz force electrical conductivity imaging. Ultrasonic vibration of a tissue in the presence of a static magnetic field induces an electrical current by the Lorentz force.
Ammari, Habib +4 more
core +3 more sources
Study on Flow Velocity Distribution in Open Channel With Flexible Vegetation
Ecological management of river channels is a hot topic for current sustainable development and flow measurement of ecological river is an important part. In this article, a flow velocity distribution model of the channel containing flexible vegetation is
Shiyu Wang +5 more
doaj +1 more source
Image-Based Experimental Measurement Techniques to Characterize Velocity Fields in Blood Microflows
Predicting blood microflow in both simple and complex geometries is challenging because of the composition and behavior of the blood at microscale. However, characterization of the velocity in microchannels is the key for gaining insights into cellular ...
Andy Vinh Le +2 more
doaj +1 more source
Long-term radial-velocity variations of the Sun as a star: The HARPS view [PDF]
Stellar radial velocities play a fundamental role in the discovery of extrasolar planets and the measurement of their physical parameters as well as in the study of stellar physical properties.
Haywood, R. D. +3 more
core +4 more sources
The analysis on the measurement uncertainty of output power in the field test of tidal energy converters is an important process to evaluate the power characteristics performance of the tested tidal energy converter.
Hainan Xia +4 more
doaj +1 more source
Bayesian analysis of spatially distorted cosmic signals from Poissonian data [PDF]
Reconstructing the matter density field from galaxy counts is a problem frequently addressed in current literature. Two main sources of error are shot noise from galaxy counts and insufficient knowledge of the correct galaxy position caused by peculiar ...
Benítez +75 more
core +1 more source
Mean current velocity measurement from a movable base
This paper discusses the possibility of measurement of the current velocity vector characteristics averaged over the time of continuous regular down-up probings from a moving carrier. The measurements can be carried out either from a moving vessel or from a helicopter, floating on or hovering above the sea surface.
N. P. Bulgakov +2 more
openaire +1 more source
The First Measurement of Spectral Lines in a Short-Period Star Bound to the Galaxy's Central Black Hole: A Paradox of Youth [PDF]
We have obtained the first detection of spectral absorption lines in one of the high-velocity stars in the vicinity of the Galaxy's central supermassive black hole. Both Brgamma (2.1661 micron) and He I (2.1126 micron) are seen in absorption in S0-2 with
A. M. Ghez +15 more
core +3 more sources
Measuring of plasma’s velocity in electrodynamic railgun using high-frequency method
A method is proposed for measuring the velocity of a moving plasma in an electrodynamic railgun in the part of internal ballistics. The achieved result is to provide a measurement of instantaneous velocity and an increase of the safety level for ...
Kirievskiy Vladimir V. +1 more
doaj +1 more source

