Results 61 to 70 of about 2,481,024 (387)

Relationship between Axial Width and Flow Characteristics of Pump Chamber in Double Volute Centrifugal Pump

open access: yesXibei Gongye Daxue Xuebao, 2020
The axial width of pump chamber has a great influence on the flow characteristics of the pump chamber in the centrifugal pump. A single-stage single-suction double volute centrifugal pump with a semi-open impeller was selected as the object.

doaj   +1 more source

The LCES HIRES/Keck Precision Radial Velocity Exoplanet Survey [PDF]

open access: yes, 2017
We describe a 20 year survey carried out by the Lick-Carnegie Exoplanet Survey Team (LCES), using precision radial velocities from HIRES on the Keck I telescope to find and characterize extrasolar planetary systems orbiting nearby F, G, K, and M dwarf ...
P. Butler   +10 more
semanticscholar   +1 more source

Normal Motor and Sensory Nerve Conduction Velocity of Radial Nerve in Young Adult Medical Students [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2016
Introduction: Normal nerve conduction velocity of radial nerve is essential for differential diagnosis of various type of radial neuropathies, C7 radiculopathy and nerve lesion.
Sunil Chouhan
doaj   +1 more source

A comprehensive radial velocity error budget for next generation Doppler spectrometers [PDF]

open access: yesAstronomical Telescopes + Instrumentation, 2016
We describe a detailed radial velocity error budget for the NASA-NSF Extreme Precision Doppler Spectrometer instrument concept NEID (NN-explore Exoplanet Investigations with Doppler spectroscopy).
S. Halverson   +16 more
semanticscholar   +1 more source

Estimating the Parameters of Wind Turbulence from Spectra of Radial Velocity Measured by a Pulsed Doppler Lidar

open access: yesRemote Sensing, 2021
The strategy providing an estimation of both the mean velocity and the temporal and spatial spectra of radial velocity from data of the same pulse coherent Doppler lidar is proposed.
Viktor A. Banakh   +3 more
doaj   +1 more source

The Joker: A Custom Monte Carlo Sampler for Binary-star and Exoplanet Radial Velocity Data [PDF]

open access: yes, 2016
Given sparse or low-quality radial velocity measurements of a star, there are often many qualitatively different stellar or exoplanet companion orbit models that are consistent with the data.
A. Price-Whelan   +3 more
semanticscholar   +1 more source

Azimuthal distributions of radial momentum and velocity in relativistic heavy ion collisions

open access: yes, 2012
Azimuthal distributions of radial (transverse) momentum, mean radial momentum, and mean radial velocity of final state particles are suggested for relativistic heavy ion collisions.
Hwa R C   +8 more
core   +1 more source

Characterization of the radial velocity signal induced by rotation in late-type dwarfs [PDF]

open access: yes, 2017
We investigate the activity induced signals related to rotation in late type stars (FGKM). We analyse the Ca II H&K, the H alpha and the radial velocity time-series of 55 stars using the spectra from the HARPS public database and the light-curves ...
A. Mascareno   +3 more
semanticscholar   +1 more source

30. Radial Velocities [PDF]

open access: yesTransactions of the International Astronomical Union, 1985
This report covers the period June 1981 to June 1984. and includes some material from IAU Colloquium No. 88, October, 1984.). The field of radial velocities has undergone a renaissance in the last few years as the new radial velocity machines have come into use. Not only can stars of much fainter magnitudes be reached, but the precision of the measured
M. Mayor   +6 more
openaire   +2 more sources

The Open Cluster NGC 7789: I. Radial Velocities for Giant Stars

open access: yes, 1998
A total of 597 radial-velocity observations for 112 stars in the ~1.6 Gyr old open cluster NGC 7789 have been obtained since 1979 with the radial velocity spectrometer at the Dominion Astrophysical Observatory. The mean cluster radial velocity is -54.9 +/
Carraro G.   +12 more
core   +1 more source

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