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