Results 21 to 30 of about 6,478 (163)
East European Journal of PhysicsIrradiation of the industrial aluminum alloy AA6111 with a high-current pulsed electron beam (HCPEB) with particle energy of 0.35 MeV, a beam current of 2.0 kA, a pulse duration of 5 μs, and a beam diameter of 3 cm results in the formation of a surface ...
V.V. Bryukhovetsky +3 more
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Magnetic Field Signatures of Intermediate-sized Impact Craters on Mars
The Astrophysical Journal, 2023 Magnetic field signatures over impact craters provide constraints for the history of the Martian dynamo. Due to limitations of the spatial resolution of magnetic field models, previous studies primarily focused on large impact craters (mostly ≥ 500 km in
Kuixiang Zhang +7 more
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Morphometric Analysis of Pluto’s Impact Craters
Remote Sensing, 2021 The scope of this work is to carry out a morphometric analysis of Pluto’s impact craters. A global Pluto digital elevation model (DEM) with a resolution of 300 m/px, created from stereoscopic pairs obtained by the New Horizons Mission, was used to ...
Caio Vidaurre Nassif Villaça +2 more
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Remote SensingMercury hosts widespread smooth plains that are concentrated in the Caloris impact basin, in an annulus surrounding the Caloris basin, and in the adjacent northern smooth plains.
Keenan B. Golder +5 more
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Self-Secondaries Formed by Cold Spot Craters on the Moon
Remote Sensing, 2021 Self-secondaries are a population of background secondaries, and they have been observed on top of impact melt and ballistically emplaced ejecta deposits on various planetary bodies.
Yiren Chang +3 more
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Method for Identifying Lava Tubes Among Pit Craters Using Brightness Profile Across Pits on the Moon or Mars [PDF]
Journal of Astronomy and Space Sciences, 2016 Caves can serve as major outposts for future human exploration of the Moon and Mars. In addition, caves can protect people and electronic equipment from external hazards such as cosmic ray radiation and meteorites impacts and serve as a shelter ...
Jongil Jung +3 more
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Remote Sensing, 2023 The purpose of this study is to employ a remote sensing reconnaissance survey based on optimal segmentation parameters and an object-oriented random forest approach to the identification of possible terrestrial impact craters from the global 30-m ...
Habimana Emmanuel +4 more
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A New Martian Crater Chronology: Implications for Jezero Crater [PDF]
The Astronomical Journal, 2021 Abstract Crater chronologies are a fundamental tool to assess the relative and absolute ages of planetary surfaces when direct radiometric dating is not available. Martian crater chronologies are derived from lunar crater spatial densities on terrains with known radiometric ages, and thus they critically depend on the Moon-to-Mars ...
openaire +2 more sources
Acta Scientiarum: Technology, 2008 É sabido que a Usinagem por Descargas Elétricas (EDM) é um processo térmico em que pode haver temperaturas muito elevadas (superiores a 1.200°C) na região de usinagem.
Jean Robert Pereira Rodrigues +4 more
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Remote Sensing, 2023 Taking the Chang’e-5 (CE-5) sampling area as an example, this study carried out an investigation on improving the crater size-frequency distribution (CSFD) dating accuracy of lunar surface geologic units based on the crater degradation model.
Feiyue Zhao, Wei Zuo, Chunlai Li
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