Results 71 to 80 of about 35,101 (231)

Design and Test of Beamforming Networks for a Galileo Antenna Array

open access: yes, 2006
The aim of the work is the design of a series of passive feeding networks that will steer the main beam of a Galileo antenna into different fixed directions to evaluate the performance of the array under such ...
Arango Selga, Arturo
core  

Development of and adherence to artificial gravity and resistive vibration exercises during 60 days of hypoxic 6° head‐down tilt bed rest: BRAVE study

open access: yesExperimental Physiology, EarlyView.
Abstract Artificial gravity (AG) combined with resistive vibration exercise has been proposed as a multi‐system countermeasure for long‐duration spaceflight; however, its operational feasibility during prolonged unloading remains insufficiently characterised.
Jack Fortune   +10 more
wiley   +1 more source

Servizi satellitari COPERNICUS e GALILEO

open access: yesArcheomatica, 2018
ASI, the Italian Space Agency, is engaged with various national, European and international initiatives, in the transfer of technology and in the development of the downstream sector of applications based on satellite services such as Galileo and ...
ASI Agenzia Spaziale Italiana
doaj  

RAIM Algorithms Analysis for a Combined GPS/GALILEO Constellation

open access: yes, 2005
How far a user can rely on his navigation system is a central question for safety of life applications like air navigation especially in approach phases. For Oceanic, En route or Non Precision Approach phases, the integrity requirements as defined by
Gass, Frédéric, Belabbas, Boubeker
core  

Scritti vari di Galileo Galilei

open access: yes
Galileo Galilei ; ordinati da Augusto ...
Galilei, Galileo
core   +1 more source

Building a Continental‐Scale Geodetic Network: The Plate Boundary Observatory (PBO)

open access: yesPerspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract The Plate Boundary Observatory (PBO) transformed the use of geodesy in North America to study crustal deformation and plate boundary processes by establishing a continental‐scale, standardized, open‐access geodetic network. Built and operated by UNAVCO between 2003 and 2018 as part of the National Science Foundation (NSF)‐funded EarthScope ...
Emily E. Zawacki   +5 more
wiley   +1 more source

GALILEO: la promessa che diventa realtà

open access: yesGEOmedia, 2013
Presso il Centro Spaziale di Telespazio al Fucino (l’ Aquila) il 24 Luglio scorso - alla presenza di alte autorità politiche, militari e civili - è stato fatto il punto sul progetto del GNSS civile europeo GALILEO ed è stata effettuata la prima ...
Gianluca Pititto
doaj  

Galileo Performance Assessment for CAT III GBAS

open access: yes, 2008
Landing aircrafts under low visibility conditions has always been a challenge even with conventional navigation systems like ILS (Instrument Landing System).
Meurer, Michael   +2 more
core  

Absolute Calibration of Dual Frequency Timing Receivers for Galileo

open access: yes, 2013
The timing service of Global Navigation Satellite Systems (GNSS) is being steadily improved. Generally, this fact traces back to increasing accuracy of the provided ephemeris data, improvements in Precise Point Positioning, continuous refinement of time ...
Elwischger, Bernard Philipp Bernhard   +3 more
core  

CTP Ontology: A Semantic Model for Structuring Cultural Thematic Paths

open access: yesJournal of the Association for Information Science and Technology, Volume 77, Issue 7, Page 979-1010, July 2026.
Abstract A thematic path enhances the appreciation of cultural heritage by connecting diverse cultural objects through shared themes. This study introduces the Cultural Thematic Path (CTP) Ontology, designed to support the creation, organization, description, publication, and management of thematic paths within the GLAM (Galleries, Libraries, Archives,
Tiziana Pasciuto   +2 more
wiley   +1 more source

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