Results 41 to 50 of about 149,635 (237)

Galileo millimeter-level kinematic precise point positioning with ambiguity resolution

Earth, Planets and Space, 2019
On February 11, 2019, four additional Galileo satellites were put into service, approaching the completion of the European global navigation satellite system constellation.
Georgia Katsigianni, Felix Perosanz, Sylvain Loyer, Mini Gupta   +3 more
doaj   +1 more source

Analogies and differences between the logic behind statistical hypothesis testing and proofs by contradiction: What can we learn from them?

Teaching Statistics, EarlyView.
Abstract Statistical hypothesis testing (SHT) is widely employed across numerous scientific disciplines, and a clear understanding of its underlying logic is essential for the broader scientific community. Here, drawing upon both epistemological and statistical perspectives, we aim to clarify—primarily for educational purposes—the logical relationship ...
Maria Cristina Amoretti, Daniele De Martini   +1 more
wiley   +1 more source

Assessment of BeiDou-3 and Multi-GNSS Precise Point Positioning Performance

Sensors, 2019
With the launch of BDS-3 and Galileo new satellites, the BeiDou navigation satellite system (BDS) has developed from the regional to global system, and the Galileo constellation will consist of 26 satellites in space. Thus, BDS, GPS, GLONASS, and Galileo
Guoqiang Jiao, Shuli Song, Yulong Ge, Ke Su, Yangyang Liu   +4 more
doaj   +1 more source

Empirical consequences of symmetries [PDF]

, 2011
`Global' symmetries, such as the boost invariance of classical mechanics and special relativity, can give rise to direct empirical counterparts such as the Galileo-ship phenomenon. However, a widely accepted line of thought holds that `local' symmetries,
Greaves, Hilary, Wallace, David
core   +2 more sources

New Challenges for European Space Industrial Policy

Global Policy, EarlyView.
ABSTRACT The European space industry is globally competitive but faces challenges due to fragmented governance, reliance on commercial markets, and increased international competition. The European Union (EU) has become a major stakeholder in this sector, with a ‘fragmented institutional market’ shaped by policies, initiatives and programmes at ...
Sara Dalledonne, Justine Dousset, Marco Aliberti   +2 more
wiley   +1 more source

Aspetti del sistema di navigazione satellitare europeo: Il progetto GALILEO ai nastri di partenza

GEOmedia, 2016
Aspetti del sistema di navigazione satellitare europeo: Il progetto GALILEO ai nastri di ...
Fabrizio Bernardini
doaj   +2 more sources

From Galilean Relativity to Quantum Gravity : Three Issues, c, h, G, concerning Time, Matter and Inertia

, 2011
An odd look at "standard" physics (Galileo, Newton, Einstein, Dirac) leading to a radical change of our concept of inertial motion and to new heuristic approaches of gravitation and the cosmological ...
Provost, Jean-Pierre
core   +1 more source

Integrated results from the COPERNICUS and GALILEO studies. [PDF]

, 2017
OBJECTIVES: To report on the efficacy and safety of intravitreal aflibercept in patients with macular edema secondary to central retinal vein occlusion (CRVO) in an integrated analysis of COPERNICUS and GALILEO.
Ahlers, Christiane, Asmus, Friedrich, Boyer, David S., Clark, W. Lloyd, Haller, Julia A., Holz, Frank G., Korobelnik, Jean-Francois, Ogura, Yuichiro, Pielen, Amelie, Rittenhouse, Kay D., Saroj, Namrata, Stemper, Brigitte, Vitti, Robert, Zeitz, Oliver   +13 more
core   +3 more sources

EU Space Law and Earth's Boundaries: Integrating Environmental Impact Assessment and Corporate Due Diligence

Global Policy, EarlyView.
ABSTRACT The European Union's proposed Space Law aims to establish a unified approach for sustainable space activities across the EU. While the EU's satellite constellations contribute to sustainability efforts, they can also have negative environmental impacts.
Elena Cirkovic, Vitali Braun
wiley   +1 more source

Perché lo spazio è così importante per le regioni?

GEOmedia, 2014
Space activities are very specific in their ability to produce growth and competitiveness and in their continental dimensions are a strategic asset for the competition and defense, aimed at peaceful way, in a troubled era.
Giovanni Sylos Labini
doaj