Results 181 to 190 of about 1,301 (216)

PHOSPHORUS ADSORPTION AND DESORPTION PROPERTIES OF MINNESOTA BASALT LUNAR SIMULANT AND LUNAR GLASS SIMULANT

Soil Science, 1996
Phosphorus (P) adsorption and desorption characteristics of Minnesota Basalt Lunar Simulant (MBLS) and Lunar Glass Simulant (LGS) were evaluated. Results of P interactions with lunar simulants indicated that mineral and glass components adsorbed between 50 and 70% of the applied P and that between ...
Brad Sutter, Lloyd R. Hossner, Douglas W. Ming   +2 more
openaire   +1 more source

Simulations of the lunar sodium atmosphere

Journal of Geophysical Research: Planets, 1995
A new Monte Carlo type model of the lunar sodium atmosphere has been developed and applied to recent ground‐based imaging observations. The model assumes a steady state atmosphere with production of sodium due to a spatially uniform source (e.g., meteor impact vaporization) or a solar zenith angle dependent source (e.g., solar wind sputtering or ...
B. Flynn, M. Mendillo
openaire   +1 more source

Lunar Soil Simulants- An Assessment

2019 9th International Conference on Recent Advances in Space Technologies (RAST), 2019
In this study an assessment is done about lunar soil simulants. It is found that until now more than 40 simulants are produced in 9 countries. This procedure is a still ongoing one, after its start in the year 1990. The list of the simulants produced given in the paper is the most comprehensive one and it includes not only all of the types given in ...
Toklu, Yusuf Cengiz, Akpinar, Pinar
openaire   +1 more source

Vacuum sintered lunar regolith simulant: Pore-forming and thermal conductivity

Ceramics International, 2019
Lunar regolith molding technologies are receiving an increasing attention in lunar exploration program. Most studies are carried out in the air on earth, ignored the effects of high vacuum (similar to 10(-12) mbar) on the lunar surface.
Shuqian Fan, Hong Tang, Xiongyao Li
exaly   +2 more sources

CELSS Simulations for a Lunar Outpost

SAE Technical Paper Series, 1990
<div class="htmlview paragraph">The Controlled Ecological Life Support System (CELSS) Emulator is operational for computer simulations of integrated CELSS operations involving humans, plants, process machinery, and reservoirs while the development of new capabilities continues. The Version 2.0 of the CELSS Emulator has been implemented to specify
H. S. Cullingford, W. P. Bennett, W. A. Holley, J. G. Carnes, P. S. Jones   +4 more
openaire   +1 more source

Development of a Lunar Dust Simulant

SAE Technical Paper Series, 2009
<div class="htmlview paragraph">ORBITEC is currently developing simulant materials that mimic many of the unique properties of lunar dust. First, a proprietary process creates simulated agglutinates and glass spherules that contain metallic iron globules (including nanophase Fe⁰).
Robert J. Gustafson, Brant C. White
openaire   +1 more source

Evaluations of lunar regolith simulants

Planetary and Space Science, 2016
Apollo lunar regolith samples are not available in quantity for engineering studies with In-Situ Resource Utilization (ISRU). Therefore, with expectation of a return to the Moon, dozens of regolith (soil) simulants have been developed, to some extent a result of inefficient distribution of NASA-sanctioned simulants.
Taylor, Lawrence A., Pieters, Carle M., Britt, Daniel   +2 more
openaire   +2 more sources

Laboratory Simulation of Lunar Luminescence

Symposium - International Astronomical Union, 1962
Work has recently begun in the Physics Department of the Manchester College of Science and Technology on an attempt to simulate lunar luminescence in the laboratory. This programme is running parallel with that of our colleagues in the Manchester University Astronomy Department, who are making observations of the luminescent spectrum of the Moon itself.
J. E. Geake, H. Lipson, M. D. Lumb
openaire   +1 more source

Adhesion of lunar simulant dust to materials under simulated lunar environment conditions

Acta Astronautica, 2022
Donald C. Barker, Andres Olivas, Ben Farr, Xu Wang, Charlie R. Buhler, Jeremy Wilson, John Mai   +6 more
openaire   +1 more source

Acoustic simulation of lunar echoes

Journal of Geophysical Research, 1965
Nonlinear modeling techniques were used in an attempt to model acoustically the lunar surface and other rough surfaces on a set of 16.7-cm-diameter spun-aluminum spheres. Some of the large-scale lunar surface roughness features were approximately modeled using reduced wavelength scale, and the small-scale roughness was modeled by random-sized sand ...
openaire   +1 more source