Results 11 to 20 of about 9,919 (195)
Precise orbit determination and point positioning using GPS, Glonass, Galileo and BeiDou
Journal of Geodetic Science, 2014 State of the art Precise Point Positioning (PPP) is currently based on dual-frequency processing of GPS and Glonass navigation systems. The International GNSS Service (IGS) is routinely providing the most accurate orbit and clock products for these ...
Tegedor J., Øvstedal O., Vigen E.
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Scientific Reports, 2023 Hybrid electric vehicles and portable electronic systems use supercapacitors for energy storage owing to their fast charging/discharging rates, long life cycle, and low maintenance.
Sachit Mishra +6 more
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Enhanced model for precise point positioning with single and dual frequency GPS/Galileo observables [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014 This paper introduces a newly developed model for both single and dual-frequency precise point positioning (PPP), which combines GPS and Galileo observables.
A. Afifi, A. El-Rabbany
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Evalution of the Accuracy and Performance of Multi-GNSS (MGEX) Positioning for Long Baselines by Using Different Software [PDF]
Journal of Geodesy and Geoinformation Science, 2023 The Global Positioning System (GPS) is a GNSS constellation, but GNSS is not always GPS. GPS is one of the GNSS constellations used around the world. The GNSS constellations include GPS (US), QZSS (Japan), Beidou/BDS (China), Galileo (EU), and GLONASS ...
Atınç Pırtı, Mehmet Ali Yücel
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Perception, 2012 The present paper focuses on Galileo's conception of perception. I take as my starting point the interpretation of the Galilean text by Piccolino and Wade (2008, Perception37 1312–1340): Galileo's eye: a new vision of the senses in the work of Galileo Galilei.
openaire +3 more sources
Space Security and the Transatlantic Relationship
Politics and Governance, 2022 Since the end of World War II, outer space has been an arena in which both high and low politics have played out, and both the US and Europe have been heavily invested.
Mai'a K. Davis Cross
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Advanced Energy Materials, EarlyView.Metal‐halide perovskite solar cells offer high‐efficiency power for orbital missions but suffer from permanent proton‐induced degradation. This work identifies non‐ionizing energy loss (NIEL) as the primary driver of irreversible failure, inducing atomic displacements and microcracks in the high‐fluence regime. Through energy‐tuned mapping and scalable
Jangwon Byun +10 more
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Materials and Corrosion, EarlyView.Climate‐neutral green hydrogen is produced via water electrolysis using renewable energy. This study explores using cold gas spraying to apply titanium coatings on steel bipolar plates for proton exchange membrane water electrolyzers. The coating shows effective corrosion protection, presenting a promising solution for future designs.
Kirsten Bobzin +3 more
wiley +1 more source