Results 81 to 90 of about 62,716 (304)
Boltish Impact Structure and its impact-melting rocks
Геофизический журнал, 2011 The Boltysh crater in the central part of the Ukrainian Shield is a complex impact structure composed by a deep inner crater with a central uplift and a peripheral depression.
E. P. Gurov +2 more
doaj +1 more source
Reidite Formation From Zircon Subjected to 20, 40, and 60 GPa Shock Experiments
Journal of Raman Spectroscopy, EarlyView.Structure disordering as a result of shock pressure: In zircon shocked from 20 to 60 GPa, the shock‐induced structural disorder increases with increasing shock pressure (gray area). Shock disorder of zircon is an integral part of its transformation to reidite: Reidite occurs after amorphous material.
Dmitry A. Zamyatin, Elizaveta Kovaleva
wiley +1 more source
Self-organized rock textures and multiring structure in the Duolun crater [PDF]
The Duolun impact crater is a multiring basin located 200 km north of Beijing. From the center to the edge of the crater there are innermost rim, inner ring, outer rim, and outermost ring.
Wu, Siben, Zhang, Jiayun
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Ultra Short Pulse Laser Welding of Glass to Metal in the Low Fluence Regime
Laser &Photonics Reviews, EarlyView.Ultrashortpulse laser welding enables precise joining of glass and metal with minimal thermal damage. We introduce the TwoThresholds Criteria to identify suitable laser parameters by combining the nonlinearabsorption threshold in glass with the metalmodification fluence threshold.
Lukas Günther +4 more
wiley +1 more source
Macromolecular Rapid Communications, EarlyView.This study presents a microscope‐based photothermal platform that integrates structured laser light projection with machine‐learning‐optimized illumination. By employing neural‐network models to predict and generate thermal profiles, the platform achieves precise thermal processing of block copolymer films.
Filip Franciszek Powala +3 more
wiley +1 more source
Morphological Features-Based Descriptive Index System for Lunar Impact Craters
ISPRS International Journal of Geo-Information, 2017 Lunar impact craters are important for studying lunar surface morphology because they are the most typical morphological units of the Moon. Impact crater descriptive indices can be used to describe morphological features and thus provide direct evidence ...
Min Chen +5 more
doaj +1 more source
Hypervelocity impact study: The effect of impact angle on crater morphology [PDF]
The Space Power Institute (SPI) of Auburn University has conducted preliminary tests on the effects of impact angle on crater morphology for hypervelocity impacts. Copper target plates were set at angles of 30 deg and 60 deg from the particle flight path.
Best, Steve +5 more
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Recent Advances in the Laser‐Based Fabrication and Applications of High‐Entropy Alloy Nanoparticles
MetalMat, EarlyView.This review presents recent advances in the laser‐based fabrication of high‐entropy alloy nanoparticles, focusing on scalable, environmentally friendly, and compositionally tunable synthesis methods. It highlights the critical influence of laser parameters on nanoparticle size, phase, and morphology, enabling tailored properties for applications in ...
Bibek Kumar Singh +4 more
wiley +1 more source
MetalMat, EarlyView.ABSTRACT Machining of materials is an invaluable technique to give specific shapes and dimensions of desired materials. Different machining processes give rise to different surface characteristics that include not only surface roughness but also specific surface morphology, such as the recast layer.
Animesh Kumar Basak +4 more
wiley +1 more source
Paradigm lost: Venus crater depths and the role of gravity in crater modification [PDF]
Previous to Magellan, a convincing case had been assembled that predicted that complex impact craters on Venus were considerably shallower than their counterparts on Mars, Mercury, the Moon, and perhaps even Earth.
Sharpton, Virgil L.
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