Results 41 to 50 of about 164,975 (347)

Recognition of landslides in lunar impact craters [PDF]

open access: yesEuropean Journal of Remote Sensing, 2017
Landslides have been observed on several planets and minor bodies of the solar System, including the Moon. Notwithstanding different types of slope failures have been studied on the Moon, a detailed lunar landslide inventory is still pending. Undoubtedly, such will be in a benefit for future geological and morphological studies, as well in hazard, risk
Marco Scaioni   +6 more
openaire   +5 more sources

A Near‐Process 2D Heat‐Transfer Model for Continuous Slab Casting of Steel

open access: yessteel research international, Volume 93, Issue 12, December 2022., 2022
The simulation results for the selected case of studies, obtained with m2CAST, show reasonable accordance with industrially measured surface temperatures by thermocouples and pyrometers installed at a continuous slab caster. m2CAST is a promising tool for optimizing the secondary cooling parameters and adjusting soft reduction settings to enhance the ...
Michael Bernhard   +7 more
wiley   +1 more source

Extraction of iron meteorites from the Barringer Meteor Crater based on remote sensing alteration information

open access: yes地质科技通报, 2021
At present, there are more than 190 craters have been confirmed on the earth, and most of the simple impact craters with a diameter of less than 1 km are formed by iron impactor.There is a large amount of iron meteorite material around the impact crater ...
Jingyue Cui   +4 more
doaj   +1 more source

Spall Craters in the Solar System [PDF]

open access: yesarXiv, 2022
Small high-speed impact craters formed in rocks, ice, and other brittle materials consist of an outer, broad shallow concentric region formed by tensile fracture (spall), surrounding a smaller central "pit" crater of greater depth. On the Earth, that "spall crater" morphology ceases to exist for craters greater than a few meters in diameter.
arxiv  

Scaling of liquid-drop impact craters in wet granular media [PDF]

open access: yesPhys. Rev. E 92, 042205 (2015), 2015
Combining high-speed photography with laser profilometry, we study the dynamics and the morphology of liquid-drop impact cratering in wet granular media---a ubiquitous phenomenon relevant to many important geological, agricultural, and industrial processes. By systematically investigating important variables such as impact energy, the size of impinging
arxiv   +1 more source

Morphology Scaling of Drop Impact onto a Granular Layer

open access: yes, 2010
We investigate the impact of a free-falling water drop onto a granular layer. First, we constructed a phase diagram of crater shapes with two control parameters, impact speed and grain size.
Katuragi, Hiroaki, 桂木, 洋光
core   +1 more source

The Sedimentary records of the Hapcheon impact crater basin in Korea over the past 1.3 Ma

open access: yesFrontiers in Earth Science, 2023
The Hapcheon impact crater is the only meteorite impact crater identified on the Korean peninsula. However, the morphology of the impact crater and the nature of the meteorite collision are unknown. In this study, we analyzed the sedimentary facies using
Jin-Young Lee   +6 more
doaj   +1 more source

Deep Learning based Systems for Crater Detection: A Review [PDF]

open access: yesarXiv, 2023
Craters are one of the most prominent features on planetary surfaces, used in applications such as age estimation, hazard detection, and spacecraft navigation. Crater detection is a challenging problem due to various aspects, including complex crater characteristics such as varying sizes and shapes, data resolution, and planetary data types. Similar to
arxiv  

A new martian crater chronology: Implications for Jezero crater [PDF]

open access: yes, 2021
Crater chronologies are a fundamental tool to assess 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 extrapolation Moon to Mars.
arxiv   +1 more source

The Mastcam‐Z Radiometric Calibration Targets on NASA's Perseverance Rover: Derived Irradiance Time‐Series, Dust Deposition, and Performance Over the First 350 Sols on Mars

open access: yesEarth and Space Science, Volume 9, Issue 12, December 2022., 2022
Abstract The Mastcam‐Z radiometric calibration targets mounted on the NASA's Perseverance rover proved to be effective in the calibration of Mastcam‐Z images to reflectance (I/F) over the first 350 sols on Mars. Mastcam‐Z imaged the calibration targets regularly to perform reflectance calibration on multispectral image sets of targets on the Martian ...
M. Merusi   +19 more
wiley   +1 more source

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