Results 61 to 70 of about 3,667 (214)
Spark plasma sintering using siliceous waste concrete powder
Abstract Spark plasma sintering (SPS) was performed using siliceous waste concrete powder for the effective utilization of waste concrete. The sintering temperature of the SPS compacts was optimized to improve their mechanical properties. Siliceous waste concrete powder was prepared using a pot‐milling procedure of waste concrete.
Yasuyuki Kanda
wiley +1 more source
Water ice has been found in the permanently shadowed regions of impact craters around the lunar South Pole, which makes them ideal areas for in situ exploration missions.
Yantong Huang +3 more
doaj +1 more source
Effect of Soil Type on Running Performance of Small Lunar Rover
It is very easy for a small lunar rover to slip on the regolith of the lunar surface and become stuck. Previous studies have quantitatively evaluated the effects of wheel geometry, such as elliptical or eccentric wheels, on the performance of a rover ...
Kimitaka Watanabe +2 more
doaj +1 more source
ABSTRACT Recently, there has been a surge of international interest in extraterrestrial exploration targeting the Moon, Mars, the moons of Mars, and various asteroids. This contribution discusses how current state‐of‐the‐art Earth‐based testing for designing rovers and landers for these missions currently leads to overly optimistic conclusions about ...
Wei Hu +6 more
wiley +1 more source
Earth's present dipolar magnetic field extends into the interplanetary space and interacts with the solar wind, forming a magnetosphere filled up with charged particles mostly originating from the Earth's atmosphere.
Y. Wei +12 more
doaj +1 more source
Thermal Infrared Spectrometers for the Polar Radiant Energy in the Far‐Infrared Experiment (PREFIRE)
Abstract The Polar Radiant Energy in the Far‐InfraRed Experiment (PREFIRE) was selected by NASA to fly two miniaturized Thermal InfraRed Spectrometers (TIRS) capable of distinguishing the spectral signatures of surface and atmospheric properties in Earth's polar regions.
Brian J. Drouin +18 more
wiley +1 more source
The Utility of a Hyperspectral Infrared Imager for Crewed Exploration of Planetary Bodies
Abstract Planetary analog simulations are a powerful exercise for understanding the utility of deployable instruments, their operational protocols, and the visualization of data products during ExtraVehicular Activities (EVAs). This paper presents results of a field campaign by the NASA Solar System Exploration Research Virtual Institute (SSERVI ...
C. I. Honniball +9 more
wiley +1 more source
Abstract The Planetary Instrument for X‐ray Lithochemistry (PIXL) onboard the Perseverance rover has characterized the composition of Martian regolith at a scale of hundreds of microns using micro‐focus X‐ray fluorescence spectroscopy. PIXL data reveal a diverse population of regolith grains with distinct spectral, chemical, and crystallographic ...
Andrew O. Shumway +23 more
wiley +1 more source
Elastic Properties of Returned Samples From Asteroid (162173) Ryugu
Abstract The successful sample return from asteroid (162173) Ryugu by Hayabusa2 has contributed to our understanding of the solar system evolution. Over the course of the initial sample analysis, various measurements were conducted, such as mineralogical observation, chemical analysis, and mechanical property measurement.
Keisuke Onodera +32 more
wiley +1 more source
Abstract Regolith samples from the lunar south pole are expected to contain material from the ancient lunar crust and potentially the uppermost mantle, excavated by the South Pole‐Aitken (SPA) impact. In this study, we aim to understand the impact resurfacing processes following the SPA impact and the subsequent redistribution of primordial crust and ...
T. Frueh +7 more
wiley +1 more source

