Overview of battery usage in NASA/GSFC LEO and GEOspacecrafts [PDF]
A survey of the batteries used in the low earth orbit (LEO) and geosynchronous earth orbit (GEO) missions at the Goddard Space Flight Center is described.
Yi, Thomas Y.
core +1 more source
Monte Carlo modeling of radiation dose from radiation therapy with superficial x‐rays
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Introduction Superficial x‐rays (50–100 kVp) are used for treating non‐melanoma skin cancer and intraoperative radiation therapy (IORT). At these energies, the photoelectric effect significantly increases absorbed dose to bone compared to soft tissue.
Reham Barghash +3 more
wiley +1 more source
A Loss Differentiation Method Based on Heterogeneous Ensemble Learning Model for Low Earth Orbit Satellite Networks. [PDF]
Entropy (Basel), 2023 Wei D, Guo C, Yang L, Xu Y.
europepmc +1 more source
The combined release and radiation effects satellite, a joint NASA/DOD program [PDF]
The Combined Release and Radiation Effects Satellite (CRRES) program is a two-phase joint USAF/NASA program consisting of a low Earth orbit (LEO) phase and a geosynchronous transfer orbit (GTO) phase.
Berrier, D. J.
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Design and validation of a novel dosimetry phantom for motion management audits
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Background We present a novel phantom design for conducting end‐to‐end dosimetry audits for respiratory motion management of two anatomical treatment sites. The design enables radiochromic film measurements of the dose administered to the target throughout the respiratory cycle (motion‐included) and the dose delivered to the time‐averaged ...
Alex Burton +5 more
wiley +1 more source
Passive Radar-Based Parameter Estimation of Low Earth Orbit Debris Targets
AerospaceMajor space agencies such as NASA and the ESA have long reported the growing dangers caused by resident space objects orbiting our planet. These objects continue to grow in number as satellites are imploded and space debris impacts each other, causing ...
Justin K. A. Henry, Ram M. Narayanan
doaj +1 more source
Intelligent Hierarchical Admission Control for Low-Earth Orbit Satellites Based on Deep Reinforcement Learning. [PDF]
Sensors (Basel), 2023 Wei D, Guo C, Yang L.
europepmc +1 more source
Direct low-energy trajectories to Near-Earth Objects [PDF]
arXivNear-Earth Objects (NEOs) are asteroids, comets and meteoroids in heliocentric orbits with perihelion below 1.3 au. Similarly to the population of the Main Asteroid Belt, NEOs are primordial bodies and their study can improve our understanding of the origins of the Solar System. With a catalog of over 30~000 known asteroids and approximately 100 listed
arxiv
Global scale observations of ionospheric instabilities from GPS in low Earth orbit [PDF]
, 2001 Leonard Krämer, John C. Goodman
openalex +1 more source
Advanced Solar-propelled Cargo Spacecraft for Mars Missions [PDF]
Three concepts for an unmanned, solar powered, cargo spacecraft for Mars support missions were investigated. These spacecraft are designed to carry a 50,000 kg payload from a low Earth orbit to a low Mars orbit.
Auziasdeturenne, Jacqueline +9 more
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