Significant achievements in the planetary geology program, 1981 [PDF]
Recent developments in planetology research as reported at the 1981 NASA Planetary Geology Principal Investigators meeting are summarized. The evolution of the solar system, comparative planetology, and geologic processes active on other planets are ...
Holt, H. E.
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Proximal ejecta of the Bolaven extraterrestrial impact, southern Laos. [PDF]
Proc Natl Acad Sci U S A, 2023 Sieh K +8 more
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Tribological properties of structural ceramics [PDF]
The tribological and lubricated behavior of both oxide and nonoxide ceramics are reviewed in this chapter. Ceramics are examined in contact with themselves, other harder materials and metals.
Buckley, D. H., Miyoshi, K.
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Occurrence of spherical ceramic debris in indentation and sliding contact [PDF]
Indenting experiments were conducted with the silicon carbide (0001) surface in contact with a spherical diamond indenter in air. Sliding friction experiments were also conducted with silicon carbide in contact with iron and iron-based binary alloys at ...
Buckley, D. H., Miyoshi, K.
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Prediction of Crack Width in RC Piles Exposed to Local Corrosion in Chloride Environment. [PDF]
Materials (Basel), 2023 Shao W, He X, Shi D, Zhu W.
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A Mars orbital laser altimeter for rover trafficability: Instrument concept and science potential [PDF]
Limited information on the types of geologic hazards (boulders, troughs, craters etc.) that will affect rover trafficability on Mars are available for the two Viking Lander sites, and there are no prospects for increasing this knowledge base in the near ...
Garvin, J. B., Zuber, M. T.
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Experimental Study on the Impact Resistance of UHMWPE Flexible Film Against Hypervelocity Particles. [PDF]
Polymers (Basel)Liu C +5 more
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Planetary geological studies [PDF]
A global data base was assembled for the study of Mars crater ejecta morphology. The craters were classified as to morhology using individual photographic prints of Viking orbiter frames. Positional and scale information were derived by fitting digitized
Blasius, K. R.
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Radar-based observation of a lava tube on Venus. [PDF]
Nat CommunCarrer L, Diana E, Bruzzone L.
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Asteroid mission hints at the nature of rubble-pile asteroids-and how to deflect them. [PDF]
Proc Natl Acad Sci U S A, 2023 Tillman NT.
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