Results 71 to 80 of about 45,046 (176)

Scritti vari di Galileo Galilei

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

Absolute Calibration of Dual Frequency Timing Receivers for Galileo [PDF]

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  

Copia del canocchiale di Galileo

open access: yes, 2009
Dal 28 febbraio al 14 giugno 2009 il Centro culturale San Gaetano (via Altinate, 71) ospita la mostra Il futuro di Galileo. Scienza e tecnica dal Seicento al terzo Millennio.
Danesin, Matteo
core   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

open access: yesJournal of Field Robotics, Volume 43, Issue 7, Page 4475-4514, October 2026.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang   +3 more
wiley   +1 more source

Galileo Performance Assessment for CAT III GBAS [PDF]

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  

The Application of Mixed Reality and UAS Technology in Port Decision-Making Process Based on PASSport Project [PDF]

open access: yesTransNav
It is becoming increasingly important to provide a solution for managing the present mission and status of autonomous and semi-autonomous vehicles operating on site in large and complex port locations.
Lucjan Gucma   +4 more
doaj   +1 more source

In Situ Alloying of H13 Tool Steel With TiC via PBF‐LB/M

open access: yessteel research international, Volume 97, Issue 10, Page 5143-5153, October 2026.
H13 tool steel is in situ alloyed with titanium carbides (TiC) in amounts up to 30 wt.%. This approach offers the advantage that the carbides melt only partially during processing, preventing excessive carbon enrichment of the steel matrix. The resulting microstructure consists of coarse, undissolved and fine, reprecipitated carbides, leading to grain ...
Oliver Bürgi   +2 more
wiley   +1 more source

The Use of Artificial Intelligence in Enhancing Navigation Safety in Case of GNSS Signal Fading or Interference [PDF]

open access: yesTransNav
Global Navigation Satellite Systems (GNSS) play a key role in modern navigation and transportation service delivery. Today it is difficult to imagine the daily operation of land, sea or air transportation without the positioning and timing provided by ...
Marcin Chrzan
doaj   +1 more source

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

open access: yesTeaching Statistics, Volume 48, Issue 3, Page 185-197, Autumn (Fall) 2026.
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   +1 more
wiley   +1 more source

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