Results 11 to 20 of about 59,991 (265)

Hemodynamic Data Analysis and Site of Measurement in Children and Adolescents

open access: yesArtery Research, 2020
Pulse wave velocity is a method of functional vascular evaluation. The gold standard is the carotid-femoral pulse wave velocity measurement. However, the software allows measurement among radial, carotid and femoral artery.
Mirjam Močnik, Nataša Marčun Varda
doaj   +1 more source

Overfitting Affects the Reliability of Radial Velocity Mass Estimates of the V1298 Tau Planets

open access: yesThe Astronomical Journal, 2023
Mass, radius, and age measurements of young (≲100 Myr) planets have the power to shape our understanding of planet formation. However, young stars tend to be extremely variable in both photometry and radial velocity (RV) measurements, which makes ...
Sarah Blunt   +25 more
doaj   +1 more source

Turbulence characterization from a forward-looking nacelle lidar [PDF]

open access: yesWind Energy Science, 2017
We present two methods to characterize turbulence in the turbine inflow using radial velocity measurements from nacelle-mounted lidars. The first uses a model of the three-dimensional spectral velocity tensor combined with a model of the spatial ...
A. Peña, J. Mann, N. Dimitrov
doaj   +1 more source

Eulerian–Lagrangian fluid dynamics study on the effects of inlet radial angle on the performance and flow pattern of multi-inlet cyclone separator

open access: yesAlexandria Engineering Journal, 2023
This paper presents a study on the influence of inlet radial angle in a multi-inlet cyclone separator using Eulerian-Lagrangian (EL) fluid dynamics approach. The investigation focuses on the behavior of air and solid particles within the cyclone.
Ibrahim Ademola Fetuga   +9 more
doaj   +1 more source

The TESS-Keck Survey. XVI. Mass Measurements for 12 Planets in Eight Systems

open access: yesThe Astronomical Journal, 2023
With JWST’s successful deployment and unexpectedly high fuel reserves, measuring the masses of sub-Neptunes transiting bright, nearby stars will soon become the bottleneck for characterizing the atmospheres of small exoplanets via transmission ...
Joseph M. Akana Murphy   +47 more
doaj   +1 more source

On the Accuracy of Gaia Radial Velocities [PDF]

open access: yesOpen Astronomy, 2001
12 pages, 2 figures, 5 tables, in press in Baltic ...
Munari U., Agnolin P., Tomasella L.
openaire   +3 more sources

EVALUATION OF THE POSSIBILITIES OF PROVIDING THE NECESSARY ACCURACY OF THE RADIAL VELOCITY MEASURING OF A TARGET BY COHERENT-PULSE RADARS OUTSIDE THE LINE OF SIGHT

open access: yesСучасні інформаційні системи, 2019
The purpose of the article. The article estimates the possible values of the components of the mean-square error of measuring the radial velocity of the target which appear as a result of fluctuations of the phase of the radio signal outside the radar ...
Oleksandr Kuznietsov   +4 more
doaj   +1 more source

Radial velocity observations of VB10

open access: yesEPJ Web of Conferences, 2011
VB 10 is the smallest star known to harbor a planet according to the recent astrometric study of Pravdo & Shaklan [1]. Here we present near-infrared (J-band) radial velocity of VB 10 performed from high resolution (R~20,000) spectroscopy (NIRSPEC/KECK II)
Rodler F.   +5 more
doaj   +1 more source

An Extreme-precision Radial-velocity Pipeline: First Radial Velocities from EXPRES [PDF]

open access: yesThe Astronomical Journal, 2020
Abstract The EXtreme-PREcision Spectrograph (EXPRES) is an environmentally stabilized, fiber-fed, R = 137,500, optical spectrograph. It was recently commissioned at the 4.3 m Lowell Discovery Telescope near Flagstaff, Arizona. The spectrograph was designed with a target radial-velocity (RV) precision of 30 cm s−1.
Ryan R. Petersburg   +15 more
openaire   +3 more sources

Experimental study on the Schmidt number dependence of the scalar derivative statistics in a liquid axisymmetric jet

open access: yesJournal of Fluid Science and Technology, 2014
In this study, the Schmidt number dependence of the scalar statistics and velocity-scalar joint statistics is investigated experimentally in a liquid axisymmetric jet.
Toshiki TAKEICHI   +5 more
doaj   +1 more source

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