Results 11 to 20 of about 20,805,604 (297)

Asymptotic analysis of displaced lunar orbits [PDF]

open access: yes, 2009
The design of spacecraft trajectories is a crucial task in space mission design. Solar sail technology appears as a promising form of advanced spacecraft propulsion which can enable exciting new space science mission concepts such as solar system ...
Simo, Jules, McInnes, Colin R.
core   +4 more sources

Use of orbiting reflectors to decrease the technological challenges of surviving the lunar night [PDF]

open access: yes, 2011
In this paper the feasibility of using lunar reflectors to decrease the technological challenges of surviving the lunar night is investigated. This is achieved by attempting to find orbits in the two-body problem where the argument of periapsis is ...
Bewick, Russell   +2 more
core   +3 more sources

Color Differences on the Lunar Surface [PDF]

open access: yes, 1968
Both a detailed literature survey and a new observational study were performed to determine and extend the knowledge of spectral reflectivity differences (color differences) on the lunar surface in the extended visible wavelength region.
McCord, Thomas Bard
core   +1 more source

Real-Time Landform Feature Detection and Segmentation Based on Heterogeneous MPSoCs for Lunar Robotic Exploration [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Real-time feedback and operation are crucial for the next generation of lunar rovers and robots, enabling more powerful and intelligent exploration. Traditional ground control methods face challenges in meeting the demands of real-time navigation and ...
Q. Fan   +5 more
doaj   +1 more source

Lunar meteorite regolith breccias: an in situ study of impact melt composition using LA-ICP-MS with implications for the composition of the lunar crust [PDF]

open access: yes, 2007
Dar al Gani (DaG) 400, Meteorite Hills (MET) 01210, Pecora Escarpment (PCA) 02007, and MacAlpine Hills (MAC) 88104/88105 are lunar regolith breccia meteorites that provide sampling of the lunar surface from regions of the Moon that were not visited by ...
Crawford, Ian A.   +13 more
core   +1 more source

Electrical Power Systems and Microgrid Technologies for Lunar Surface Missions A Review [PDF]

open access: yesThe Egyptian International Journal of Engineering Sciences and Technology
A number of space groups have been thinking about establishing a permanent, manned base on the moon in recent years. An installation of this type requires an incredibly dependable electrical power system in order to serve scientific equipment and ...
khaled wahdan   +3 more
doaj   +1 more source

Mechanical Analysis and Performance Optimization for the Lunar Rover’s Vane-Telescopic Walking Wheel

open access: yesEngineering, 2020
It is well-known that optimizing the wheel system of lunar rovers is essential. However, this is a difficult task due to the complex terrain of the moon and limited resources onboard lunar rovers.
Lu Yang   +7 more
doaj   +1 more source

Revealing the Mechanical Characteristics via Kinematic Wave Model for Snake-Like Robot Executing Exploration of Lunar Craters

open access: yesIEEE Access, 2020
It is extremely difficult to collect deep lunar soil samples during lunar exploration, as the average thickness of lunar soils is very large, and the power of lunar soil sampling systems is inherently limited.
Xuyan Hou   +6 more
doaj   +1 more source

Lunar Orbiting Microwave Beam Power System [PDF]

open access: yesProceedings of the 25th Intersociety Energy Conversion Engineering Conference, 2005
A microwave beam power system using lunar orbiting solar powered satellite(s) and surface rectenna(s) was investigated as a possible energy source for the moon's surface. The concept has the potential of reduced system mass by placing the power source in orbit.
E.H. Fay, R.C. Cull
openaire   +1 more source

RoboCrane: A system for providing a power and a communication link between lunar surface and lunar caves for exploring robots

open access: yesActa Astronautica, 2022
This work was supported in part by the Spanish Government under the Project MCIU-19-RTI2018-099682-A-I00 and by ESA, Spain under ESA CONTRACT No 4000130860/20/NL/GLC .
Pablo F. Miaja   +12 more
openaire   +2 more sources

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