Concept
Geostationary orbit
Related publications (64)
Swirling against the forcing: Evidence of stable counterdirected sloshing waves in orbital-shaken reservoirs
François Gallaire, Alessandro Bongarzone, Alice Evelyne Julienne Marcotte
We investigate the response of the free liquid surface in a partially filled circular cylindrical container undergoing a planar elliptic and time-periodic orbit while maintaining fixed its orientation. For small forcing amplitudes and deep liquid layers, w ...
College Pk2023Lightning Nowcasting Using Solely Lightning Data
Marcos Rubinstein, Amirhossein Mostajabi
Lightning is directly or indirectly responsible for significant human casualties and property damage worldwide. A timely prediction of its occurrence can enable authorities and the public to take necessary precautionary actions resulting in diminishing the ...
Basel2023Microstrip patch antennas with broad beamwidth
Microstrip antennas offer a broad set of advantages such as low profile, light weight, easy fabrication and low cost. As these are desirable or even critical for a broad range of applications, there has been a large interest for these antennas in the anten ...
EPFL2023A Large-Scale Characterization of How Readers Browse Wikipedia
Robert West, Tiziano Piccardi, Akhil Arora
Despite the importance and pervasiveness of Wikipedia as one of the largest platforms for open knowledge, surprisingly little is known about how people navigate its content when seeking information. To bridge this gap, we present the first systematic large ...
ASSOC COMPUTING MACHINERY2023Feasibility Study and Preliminary Design of Lunar Reconnaissance Drone
Jean-Paul Richard Kneib, David Rodriguez Martinez, Erik Uythoven, Thomas Pfeiffer
With orbiting stations and ground bases planned to be built, we are yet to master the ability to explore long term and long range over areas of the Moon often characterised by an extreme topography, dauntingly low temperatures, and wedged with what are kno ...
2022Towards reliable retrievals of cloud droplet number for non-precipitating planetary boundary layer clouds and their susceptibility to aerosol
Athanasios Nenes, Paraskevi Georgakaki, Romanos Foskinis
Remote sensing has been a key resource for developing extensive and detailed datasets for studying and constraining aerosol-cloud-climate interactions. However, aerosol-cloud collocation challenges, algorithm limitations, as well as difficulties in unravel ...
FRONTIERS MEDIA SA2022Design of an intake and a thruster for an atmosphere-breathing electric propulsion system
Francesco Romano, Thomas Binderup Jensen
Challenging space missions include those at very low altitudes, where the atmosphere is the source of aerodynamic drag on the spacecraft, that finally defines the mission's lifetime, unless a way to compensate for it is provided. This environment is named ...
2022Intensifying 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 Center2021The cis-lunar ecosystem — A systems model and scenarios of the resource industry and its impact
Lunar resources is one of the many new putative business models that may transform space logistics. Yet it competes with Earth-based resources, in a complex trade-off involving both tech development & socioeconomic dynamics. This study models the size vs. ...
2021Online Kinematic and Dynamic Parameter Estimation for Autonomous Surface and Underwater Vehicles
Alcherio Martinoli, Anwar Ahmad Quraishi
One of the main challenges in underwater robot localization is the scarcity of external positioning references. Therefore, accurate inertial localization in between external position updates is crucial for applications such as underwater environmental samp ...
2021