Results 261 to 270 of about 4,162,760 (300)

RSONAR: Data-Driven Evaluation of Dual-Use Star Tracker for Stratospheric Space Situational Awareness (SSA). [PDF]

Sensors (Basel)
Suthakar V, Porto I, Myhre M, Sanvido AA, Clark R, Lee RSK.   +5 more
europepmc   +1 more source

PTHrP induces breast cancer bone metastases via microbial-dependent expansion of TNF/IL-17-producing T cells. [PDF]

JCI Insight
Roy NK, Pal S, Dar HY, Patil S, Weitzmann MN, Pacifici R.   +5 more
europepmc   +1 more source

α-Linolenic acid-driven nano-liposomes from purslane seed oil modulate p-JAK2/p-STAT3 to combat acute liver failure. [PDF]

Biosci Rep
Ali SO, Hegazy D, Kamel IS, Shalan NH, ElMonier AA.   +4 more
europepmc   +1 more source

A Catalog of Rotational Velocities of the Stars

A Catalog of Rotational Velocities of the Stars
openaire   +1 more source

Star Catalog Generation for Satellite Attitude Navigation Using Density Based Clustering

Journal of Computer Science, 2016
: A new method to generate star catalog using density-based clustering is proposed. It identifies regions of a high star density by using Density-Based Spatial Clustering of Application with Noise (DBSCAN) algorithm.
Imas Sukaesih Sitanggang, Bib Paruhum Silalahi   +1 more
exaly   +1 more source

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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.
Gangyi Wang, Jian Li, 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

The Gaia Attitude Star Catalog

Astronomy and Computing, 2016
Abstract We describe the Attitude Star Catalog produced for the Gaia mission. This catalog is being used by Gaia for the first on-ground attitude reconstruction. Originally it was simply a subset of the Initial Gaia Source List but this subset did not meet the isolation requirements and it contained a significant number of double entries. As a result
openaire   +2 more sources