Results 81 to 90 of about 1,182,695 (373)

The Geometric Calibration of the Planck satellite using Solar System Objects [PDF]

open access: yesMon.Not.Roy.Astron.Soc.364:1441-1450,2005; Erratum-ibid.365:699,2006, 2005
The geometric calibration of the Planck satellite using the planetary transits is investigated, together with the reconstruction of any offsets from the nominal layout of the focal plane. The methods presented here may be applied to a single focal plane transit of a planet, to find the values of the geometric-calibration parameters at the epoch of the ...
arxiv   +1 more source

Soman induces endoplasmic reticulum stress and apoptosis of cerebral organoids via the GRP78‐ATF6‐CHOP signaling pathway

open access: yesFEBS Open Bio, EarlyView.
Cerebral organoids were employed as a novel model to explore the neurotoxicity of soman. Soman inhibited acetylcholinesterase activity, increased cell apoptosis and upregulated endoplasmic reticulum (ER) stress markers glucose‐regulated protein 78 (GRP78), activating transcription factor 6 (ATF6) and C/EBP homologous protein (CHOP).
Yue Wei   +7 more
wiley   +1 more source

Time evolution and rotation of starspots on CoRoT-2 from the modelling of transit photometry

open access: yes, 2011
CoRoT-2, the second planet-hosting star discovered by the CoRoT satellite, is a young and active star. A total of 77 transits were observed for this system over a period of 135 days.
Lanza, A. F., Silva-Valio, Adriana
core   +1 more source

Ontology‐Based Data Acquisition, Refinement, and Utilization in the Development of a Multilayer Ferrite Inductor

open access: yesAdvanced Engineering Materials, EarlyView.
Multilayer ferrite inductor prototypes are fabricated by cofiring metallized tapes of NiCuZn ferrite and glass‐ceramic composite. Prerequisites for a predictive component simulation are discussed. An automated data‐pipeline stores and semantically links the experimental data acquired in the study according to a domain ontology.
Björn Mieller   +8 more
wiley   +1 more source

A SIMULATION MODEL OF A PACKET SWITCHING SATELLITE NETWORK WITH DIFFERENT ORBIT HEIGHTS SEGMENT

open access: yesРадіоелектронні і комп'ютерні системи, 2016
A simulation model of a packet switching satellite network based on a satellite constellation with different orbit heights is presented. The model is meant for analysis of load and data routing at the initial stages of designing of a satellite ...
Т. В. Лабуткина   +5 more
doaj   +1 more source

TOI-4600 b and c: Two Long-period Giant Planets Orbiting an Early K Dwarf

open access: yesThe Astrophysical Journal Letters, 2023
We report the discovery and validation of two long-period giant exoplanets orbiting the early K dwarf TOI-4600 ( V = 12.6, T = 11.9), first detected using observations from the Transiting Exoplanet Survey Satellite (TESS) by the TESS Single Transit ...
Ismael Mireles   +33 more
doaj   +1 more source

The Importance of Satellite Quenching for the Build-Up of the Red Sequence of Present Day Galaxies [PDF]

open access: yes, 2007
In the current paradigm, red sequence galaxies are believed to have formed as blue disk galaxies that subsequently had their star formation quenched. Since red-sequence galaxies typically have an early-type morphology, the transition from the blue to the red sequence also involves a morphological transformation.
arxiv   +1 more source

Exoplanet Characterization by Multi-Observatory Transit Photometry with TESS and CHEOPS [PDF]

open access: yes, 2017
Space-based photometric surveys have discovered large numbers of planets transiting other stars, but these observe in a single band-pass and yield only the planet radius, orbital period, and transit duration.
Gaidos, E., Heng, K., Kitzmann, D.
core   +2 more sources

Prognostic Factors of Melanoma Patients with Satellite or In-Transit Metastasis at the Time of Stage III Diagnosis

open access: yesPLoS ONE, 2013
Background Prognosis of patients with loco-regional skin metastases has not been analyzed in detail and the presence or absence of concurrent lymph node metastasis represents the only established prognostic factor thus far.
B. Weide   +9 more
semanticscholar   +1 more source

No Evidence for Lunar Transit in New Analysis of Hubble Space Telescope Observations of the Kepler-1625 System [PDF]

open access: yesAstrophysical Journal, 2019
Observations of the Kepler-1625 system with Kepler and the Hubble Space Telescope have suggested the presence of a candidate exomoon, Kepler-1625b I, a Neptune-radius satellite orbiting a long-period Jovian planet.
L. Kreidberg, R. Luger, M. Bedell
semanticscholar   +1 more source

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