Results 161 to 170 of about 18,526 (302)

Minimum-hop Constellation Design for Low Earth Orbit Satellite Networks [PDF]

Chirag Rao, Eytan Modiano
openalex   +1 more source

Rheocasting versus Die Casting: An Insight into the Low‐Cycle Fatigue Behavior of AlSi7Mg0.6

Advanced Engineering Materials, EarlyView.
The study compares rheocast lightweight components with high‐pressure die cast materials regarding microstructure and fatigue behavior. Rheocast process offers higher efficiency due to lower casting temperatures. Despite some microstructural differences, both processes show similar strengths (yield strength 125 MPa, tensile strength 240 MPa).
Julia Richter, Thomas Wegener, Andreas Schilling, Martin Fehlbier, Thomas Niendorf   +4 more
wiley   +1 more source

Integrative focus on the space exposome-integrome: physiological challenges and practical limits of countermeasures beyond low Earth orbit. [PDF]

NPJ Microgravity
Bailey DM, Blottner D, Gunga HC, Schneider S, Wotring V, Baatout S, Durante M, Olde Engberink RHG, Goswami N, Heer M, Liphardt AM, Monici M, Pagnini F, Stern C, Stukenborg JB, Weber T, Vico L, White O, van Ombergen A, Choukér A.   +19 more
europepmc   +1 more source

Investigation of fungal biomolecules after Low Earth Orbit exposure: a testbed for the next Moon missions. [PDF]

Environ Microbiol, 2022
Cassaro A, Pacelli C, Baqué M, Cavalazzi B, Gasparotto G, Saladino R, Botta L, Böttger U, Rabbow E, de Vera JP, Onofri S.   +10 more
europepmc   +1 more source

Low earth orbit (LEO) mega constellations - satellite and terrestrial integrated communication networks.

, 2019
Yang Xin
openalex   +1 more source

Design and Prototyping of Topology‐Optimized, Additively Manufactured Lightweight Components for Space Robotic Systems: A Case Study

Advanced Engineering Materials, EarlyView.
The results demonstrate a simulation‐driven workflow that applies LSB topology optimization with additive manufacturing constraints to mission‐specific load cases, integrating European Cooperation for Space Standardization compliant verification and manufacturability to develop structurally efficient rover suspension components.
Stelios K. Georgantzinos, Grigorios Kostopoulos, Eleni Papadopoulou, Stefanos Voulgaris, Alexandra Tseni, Panteleimon Bakalis, Maria N. Gkara, Chara Ch. Mitropoulou, Georgios Kazakis, Alin Munteanu, Jeremi Gancet, Nikos D. Lagaros   +11 more
wiley   +1 more source

The optimization of low Earth orbit satellite constellation visibility with genetic algorithm for improved navigation potential. [PDF]

Sci Rep
Qin C, Gao Y, Wang Y.
europepmc   +1 more source

Homo sapiens-A Species Not Designed for Space Flight: Health Risks in Low Earth Orbit and Beyond, Including Potential Risks When Traveling beyond the Geomagnetic Field of Earth. [PDF]

Life (Basel), 2023
Hart DA.
europepmc   +1 more source

Covariance and Uncertainty Realism for Low Earth Orbiting Satellites via Quantification of Dominant Force Model Uncertainties

, 2021
Fabian Schiemenz
openalex   +1 more source

Engineering Deformation and Failure in Diamond Triply Periodic Minimal Surface Lattices via 3D Wall‐Thickness Grading

Advanced Engineering Materials, EarlyView.
The work demonstrates that strategic wall‐thickness grading in diamond triply periodic minimal surface lattices enables precise tuning of deformation and failure behavior under compression. Different gradation patterns guide how and where the structure collapses, improving energy absorption or promoting controlled brittle failure.
Giovanni Rizza, Danilo Bruson, Manuela Galati, Luca Iuliano   +3 more
wiley   +1 more source