Results 261 to 270 of about 24,866 (298)

Obeticholic acid prevents cyclophosphamide-induced placental injury via SIRT1 and TLR4/NF-κB pathways. [PDF]

open access: yesBMC Pharmacol Toxicol
Abdelzaher WY   +9 more
europepmc   +1 more source

A Catalog of Rotational Velocities of the Stars

open access: yesA Catalog of Rotational Velocities of the Stars
openaire  

Generation of Guide Star Catalog for Star Trackers

IEEE Sensors Journal, 2018
In this paper, a novel guide star catalog generation algorithm is presented, which is a crucial part of an advanced star tracker design since the performance and reliability of star identification and attitude determination depend on the guide star selection.
Jian Li, Gangyi Wang, Xinguo Wei
exaly   +2 more sources

On the making of Ptolemy’s star catalog

Archive for History of Exact Sciences, 2020
Already Tycho Brahe suspected that Ptolemy adopted his star coordinates from a star catalog by Hipparchus. The aim of this paper is to prove this by a statistical analysis. First, given that Hipparchus used an equatorial coordinate system and that Ptolemy produced an ecliptic-based star catalog, a derivation of ecliptical coordinates from equatorial ...
openaire   +2 more sources

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