Concept
Orbite terrestre
Publications associées (39)
Can dd excitations mediate pairing?
Christophe Berthod, Francesco Barantani
The Cu-3d states in the high-T-c cuprates are often described as a single band of 3d(x2-y2) states, with the other four 3d states having about 2 to 3 eV higher energy due to the lower-than-octahedral crystal field at the copper sites. However, excitations ...
Amsterdam2023Biomechanics at the workplace under hypogravity conditions
The main goal of my research is to establish guidelines for workplace design based on human biomechanics: specifically sitting workplaces and handling areas in 1/6G-1/3G (Moon, Mars) conditions. Such a workplace could be used in long-term space missions in ...
EPFL2022Intensifying space activity calls for increased scrutiny of risks
As the pace of space activities accelerates and societies become more reliant on space-based systems, the associated risks deserve more attention. Satellites form a critical infrastructure on which military, civil and commercial entities rely. The services ...
International Risk Governance Center2021Decoupling of lattice and orbital degrees of freedom in an iron-pnictide superconductor
Qian Wang, László Forró, Johan Juul Chang, Sergiy Katrych
The interplay between structural and electronic phases in iron-based superconductors is a central theme in the search for the superconducting pairing mechanism. While electronic nematicity is competing with superconductivity, the effect of purely structura ...
AMER PHYSICAL SOC2021Doppler-based positioning using LEO augmented satellite constellation - Simulations of perspectives
The Global Navigation Satellite System (GNSS) refers to a constellation of satellites emitting signals from space, used to provide Position, Navigation and Timing (PNT) services to the receivers on Earth. Nowadays, the GNSS is exploited in a wide range of ...
2020X-ray pulsar-based GNC system for formation flying in high Earth orbits
Volker Gass, Camille Sébastien Pirat
In this paper, comprehensive pulsar-based Guidance, Navigation and Control (GNC) system is designed and applied to satellites formation flying. The complete autonomy of the X-ray pulsar navigation technology provides both absolute and relative positioning ...
PERGAMON-ELSEVIER SCIENCE LTD2020Capture system adapted to capture orbital objects, in particular for deorbiting purposes
Pierre-Alain Mäusli, Muriel Richard, Michaël Pellet
There is described a capture system (100) adapted to capture orbital objects (2000), in particular for deorbiting purposes. The capture system (110) comprises (i) a deployable capture structure (110) designed to be deployable between a standby configuratio ...
2020Guidance, Navigation and Control for Autonomous Cooperative Docking of CubeSats
Volker Gass, Pierre-Alain Mäusli, Camille Sébastien Pirat
Is it possible to dock CubeSats in Low Earth Orbit? The challenges are mainly associated with the level of miniaturisation. A docking mechanism was designed, built and tested in the laboratory. Results show that a relative precision better than 1 cm and 2 ...
2018Guidance, Navigation and Control for Autonomous Rendezvous and Docking of Nano-Satellites
Is it possible to dock CubeSats in Low Earth Orbit? Challenges are associated with the level of miniaturisation: the docking accuracy is driven by the docking mechanism dimensions. The achievable docking performance with the Guidance, Navigation and Contro ...
EPFL2018Periodic cellular aluminum structures for space applications
Mass is one of the crucial parameters for hardware that has to be placed in Earth orbit. Due to its harsh environment, a material with highest specific properties is desired to achieve space missions. The rise and development of new technologies, such as a ...
EPFL2018