Results 31 to 40 of about 124,564 (297)

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

Measurements of galactic cosmic ray shielding with the CRaTER instrument [PDF]

open access: yes, 2013
[1] The Cosmic Ray Telescope for the Effects of Radiation (CRaTER) instrument aboard the Lunar Reconnaissance Orbiter has been measuring energetic charged particles from the galactic cosmic rays (GCRs) and solar particle events in lunar orbit since 2009.
Blake, J. B.   +11 more
core   +3 more sources

YOLO-Crater Model for Small Crater Detection

open access: yesRemote Sensing, 2023
Craters are the most prominent geomorphological features on the surface of celestial bodies, which is playing a crucial role in studying the formation and evolution of celestial bodies, as well as in landing and planning for surface exploration. Currently, the main automatic crater detection models and datasets focus on the detection of large and ...
Lingli Mu   +5 more
openaire   +2 more sources

Models for evaluating craters morphology, relation of indentation hardness and uniaxial compressive strength via a flat-end indenter

open access: yesOpen Geosciences, 2018
In this work, the intensive theoretical study and laboratory tests are conducted to evaluate the craters morphology via the flat-ended indenter test, relationship of indentation hardness (HRI) and uniaxial compressive strength (UCS).
Zhang Ligang   +5 more
doaj   +1 more source

Community-Based Participatory Research and Sustainability: The Petersburg Wellness Consortium

open access: yesJournal of Community Engagement and Scholarship, 2022
The principle and practice of sustainability is critical in community-based participatory research. Actively planning for and building community capacity to ensure sustainability is even more critical in research involving underserved populations and ...
Maghboeba Mosavel   +5 more
doaj   +1 more source

Crater mound formation by wind erosion on Mars

open access: yes, 2018
Most of Mars' ancient sedimentary rocks by volume are in wind-eroded sedimentary mounds, but the connections between mound form and wind erosion are unclear.
Kite, Edwin S.   +2 more
core   +1 more source

A New Martian Crater Chronology: Implications for Jezero Crater [PDF]

open access: yesThe 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

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland   +5 more
wiley   +1 more source

Young Martian crater Gratteri and its secondary craters [PDF]

open access: yesJournal of Geophysical Research: Planets, 2016
AbstractIn response to questions that have been raised about formation and effects of secondary craters on crater chronometry techniques, we studied properties of the secondary crater field around the young Martian primary ray crater Gratteri (diameter 7 km).
Quantin, Cathy   +3 more
openaire   +4 more sources

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff   +9 more
wiley   +1 more source

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