Results 201 to 210 of about 47,493 (267)

3D printing of radiation shielding polyethylene composites filled with Martian regolith simulant using fused filament fabrication

Acta Astronautica, 2022
A highly sought-after objective of Space Agencies is the development of additive manufacturing (AM) technologies and of multifunctional materials, key elements to future exploration and colonization of Moon and Mars.
Federica Zaccardi, E. Toto, M. Santonicola, S. Laurenzi   +3 more
semanticscholar   +1 more source

REE fractionation controlled by REE speciation during formation of the Renju regolith-hosted REE deposits in Guangdong Province, South China

Ore Geology Reviews, 2021
Regolith-hosted rare earth element (REE) resources in South China are the dominant global source of heavy REEs (HREEs), which are critical for high technology and military industries.
H. Jian, W. Tan, Xiaoliang Liang, Hongping He, Lingya Ma, Z. Bao, Jianxi Zhu   +6 more
semanticscholar   +1 more source

Challenging the agricultural viability of martian regolith simulants

, 2021
As human space exploration extends farther from Earth, the cost and risk of resupplying a mission increases substantially. In situ resource utilization (ISRU) is the prospecting, extraction, storage, and exploitation of existing resources at the crew ...
A. Eichler, N. Hadland, D. Pickett, D. Masaitis, D. Handy, A. Perez, Dan Batcheldor, B. Wheeler, A. Palmer   +8 more
semanticscholar   +1 more source

Global Regolith Thermophysical Properties of the Moon From the Diviner Lunar Radiometer Experiment [PDF]

Journal of Geophysical Research E: Planets, 2017
We used infrared data from the Lunar Reconnaissance Orbiter (LRO) Diviner Lunar Radiometer Experiment to globally map thermophysical properties of the Moon's regolith fines layer.
Paul Hayne, Ashwin R Vasavada, Da Paige
exaly   +2 more sources

The thermodynamics of rare earth element liberation, mobilization and supergene enrichment during groundwater-regolith interaction

, 2021
Rare earth elements (REEs) mobilize, fractionate, and are re-distributed during supergene processes, and thus provide a powerful tool with which to quantitatively reconstruct the effects of chemical weathering.
M. Li, H. Kwong, A. Williams-Jones, Mei‐Fu Zhou   +3 more
semanticscholar   +1 more source

Solar 3D printing of lunar regolith

Acta Astronautica, 2018
The authors demonstrated the feasibility of sintering lunar regolith layer-by-layer solely using concentrated sunlight. First trials using actual concentrated sunlight led to an inhomogeneous sintering of individual layers of lunar regolith simulant, due
Alexandre Meurisse
exaly   +2 more sources

Regolith Science

2009
This comprehensive reference on the fundamentals of regolith geoscience describes how regolith is developed from parental rocks and emphasises the importance of chemical, physical, water and biological processes in regolith formation. It provides details for mapping regolith landforms, as well as objective information on applications in mineral ...
openaire   +1 more source

Evidence of space weathering in regolith breccias I: Lunar regolith breccias

Meteoritics & Planetary Science, 2005
Abstract— We have analyzed a suite of lunar regolith breccias in order to assess how well space weathering products can be preserved through the lithification process and therefore whether or not it is appropriate to search for space weathering products in asteroidal regolith breccia meteorites.
Sarah K. Noble, Lindsay P. Keller, Carlé M. Pieters   +2 more
openaire   +1 more source

The role of clay minerals in formation of the regolith-hosted heavy rare earth element deposits

American Mineralogist, 2019
Rare earth elements (REEs) have become increasingly important to our modern society due to their strategical significance and numerous high technological applications.
M. Li, Mei‐Fu Zhou
semanticscholar   +1 more source

REGOLITH

2014
Michael Küppers, Colin Pain, Ákos Kereszturi, Henrik Hargitai   +3 more
  +4 more sources