Results 1 to 10 of about 40,134 (307)

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 plays a crucial role in studying the formation and evolution of celestial bodies as well as in landing and planning for surface exploration. Currently, the
Wei Zhang   +5 more
core   +3 more sources

Projectile Velocity and Crater Formation in Water

open access: yesInternational Scholastic Journal of Science, 2010
The relationship between the velocity of impact and maximum crater diameter was found for two steel balls dropped into water using 300 fps video. The maximum diameter of the crater was found to be proportional to the impact velocity and independent of ...
Pravitra Chaikulngamdee   +3 more
doaj   +1 more source

Soil Deformation after Water Drop Impact—A Review of the Measurement Methods

open access: yesSensors, 2022
Water erosion is an unfavorable phenomenon causing soil degradation. One of the factors causing water erosion is heavy or prolonged rainfall, the first effect of which is the deformation of the soil surface and the formation of microcraters.
Rafał Mazur   +5 more
doaj   +1 more source

Keratoacanthoma of Upper Lip: Review and Report of Case Managed Surgically [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2015
Keratoacanthoma is a benign lesion usually presenting as a solitary, dome shaped nodule with a central crater filled with keratin. It frequently occurs on the sun exposed areas of the skin.
Saakshi Gulati   +4 more
doaj   +1 more source

Analysis of the First Optical Detection of a Meteoroidal Impact on the Lunar Surface Recorded from Brazil

open access: yesRemote Sensing, 2022
Two lunar flashes are reported and fully analyzed, with one of them fulfilling every criterion preconized in the literature for the characterization of an impact, including confirmation by two simultaneous observations.
David Duarte Cavalcante Pinto   +14 more
doaj   +1 more source

THE NEPSKY-1 IMPACT CRATER AND ITS FILL DEPOSITS ON THE BASEMENT ROOF OF THE SIBERIAN PLATFORM

open access: yesГеодинамика и тектонофизика, 2020
In the Earth studies, discoveries and investigations of impact craters buried beneath thick sediments are sporadic so far and may still remain inefficient, unless geophysical surveys of the areas of interest are initiated. Such studies can provide useful
M. I. Gyokche, A. V. Plyusnin
doaj   +1 more source

The Habitat of the Nascent Chicxulub Crater

open access: yesAGU Advances, 2020
An expanded sedimentary section provides an opportunity to elucidate conditions in the nascent Chicxulub crater during the hours to millennia after the Cretaceous‐Paleogene (K‐Pg) boundary impact.
T. J. Bralower   +34 more
doaj   +1 more source

Influence of Calcined Bauxite Aggregate on the Resistance of Cement Composites Subjected to Small Caliber Deformable Projectile Impact

open access: yesFrontiers in Materials, 2021
This paper presents an experimental investigation on the influence of calcined bauxite aggregate (CBA) on the resistance of cement composites subjected to small caliber deformable projectile impact at a designed velocity of 400 m/s.
Fengling Zhang, Rui Zhong
doaj   +1 more source

Mechanics of Crater-Enabled Soft Dry Adhesives: A Review

open access: yesFrontiers in Mechanical Engineering, 2020
Dry adhesion is governed by physical rather than chemical interactions. Those may include van der Waals and electrostatic forces, friction, and suction. Soft dry adhesives, which can be repeatedly attached to and detached from surfaces, can be useful for
Liu Wang   +6 more
doaj   +1 more source

Du symposion à l’adyton de Delphes. L’harmonie du mélange et ses instruments

open access: yesPallas, 2011
In the banqueting hall where the drinking party takes place, the lyre and the aulos are associated with the crater and the gestures that make it function.
Philippe Monbrun
doaj   +1 more source

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