Results 31 to 40 of about 162,591 (269)
System engineering approach applied to Galileo system [PDF]
, 2010 Developing a localization system, with more precise performances than GPS that guarantees Europe autonomy is a complex challenge that ESA and a large number of European economical actors of space industry were decided to meet.
Bouchired, Steven +1 more
core +1 more source
Advanced Engineering Materials, EarlyView.High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé +5 more
wiley +1 more source
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
doaj +1 more source
The Promise of Solid Lubricants for a Sustainable Future
Advanced Materials, EarlyView.Lubricants are vital for technology, saving energy and resources. The industry seeks sustainable solutions beyond fossil fuels. Solid lubricants offer extremely low friction and reduce environmental impact, especially in harsh conditions. Can these solids truly replace liquid lubricants, or are they limited to extreme applications?
Philipp G. Grützmacher +7 more
wiley +1 more source
Evaporation‐Driven Solutal Marangoni Control of Rayleigh–Taylor Instability in Inverted Films
Advanced Science, EarlyView.ABSTRACT Inverted liquid films are inherently unstable: gravity amplifies perturbations through the Rayleigh–Taylor instability (RTI), causing rupture and dripping. We show that selective evaporation in volatile binary mixtures can suppress, delay, or transform this instability by inducing solutal Marangoni stresses.
Minwoo Choi, Hyejoon Jun, Hyoungsoo Kim
wiley +1 more source
GNSS e dati geografici costituiscono la quinta infrastruttura primaria globale
GEOmedia, 2014 2014 is the year of the official start of services provided by European Galileo satellite positioning system, and even if a few years late, the expectations for the induction of a rapidly growing market are many, with expected growth more then doubled by
Renzo Carlucci
doaj +2 more sources
Comparison Analysis on the Accuracy of Galileo PPP Using Different Frequency Combinations in Europe
Applied Sciences, 2021 The Galileo constellations are characterized by transmitting GNSS signals on multi-frequencies, which can benefit the robustness and accuracy of the solutions.
Jia Song, Lewen Zhao
doaj +1 more source
, 2010 This is the age of doubt, says Brecht's Galileo, the 17th century scientist. "It ain't necessarily so," says Gershwin's Sportin' Life of the 1930ies. "De t'ings dat yo li'ble / to read in de Bible / it ain't necessarily so.
Deinert, Herbert
core
Galileo Galilei: Science vs. faith [PDF]
, 2017 Galileo Galilei (1564\u20131642), professor of mathematics at the University of Padua from 1592 to 1610, was a pillar in the history of our University and a symbol of freedom for research and teaching, well stated in the university motto \u2018 ...
Basso, Cristina +3 more
core +2 more sources
Advanced Science, EarlyView.Functional compensation between clarin‐1 and clarin‐2 in cochlear hair cells. Hearing loss associated with CLRN1 mutations shows striking phenotypic variability; however, the underlying mechanisms remain poorly understood. This study reveals that clarin‐1 and clarin‐2 function cooperatively in cochlear hair cells to sustain mechanoelectrical ...
Maureen Wentling +17 more
wiley +1 more source