Results 51 to 60 of about 62,716 (304)

Cluster-induced crater formation

open access: yes, 2008
Using molecular-dynamics simulation, we study the crater volumes induced by energetic impacts ($v= 1- 250$ km/s) of projectiles containing up to N=1000 atoms.
Aderjan   +28 more
core   +1 more source

Volcano‐Inspired Dual‐Carbon Network Aerogel for High‐Performance Solar Evaporation With Edge‐Directed Salt Crystallization and Recovery

open access: yesAdvanced Science, EarlyView.
A volcano‐inspired dual‐carbon aerogel featuring hierarchical conduits and an outer carbon‐fiber shell directs rapid water transport, confines heat, and enables directional salt migration. Radial temperature gradients in the conical structure trigger Marangoni‐driven edge‐localized salt crystallization while maintaining an unobstructed photothermal ...
Shuyue Feng   +8 more
wiley   +1 more source

Ultra‐Low Intensity Continuous Wave Laser Ablation Propulsion With Graphene‐Engineered Wood

open access: yesAdvanced Science, EarlyView.
Graphene delignified wood converts continuous wave laser energy into thrust. Laser propulsion experiments in vacuum reveal the lowest laser ablation threshold intensities and the greatest density‐normalized specific impulse in literature. The results highlight graphene delignified wood as a potential efficient, sustainable, strong, and lightweight ...
Afnan S. M. Elmubasher   +10 more
wiley   +1 more source

Impact Flux on the Moon

open access: yesSpace: Science & Technology
The crust of the Moon records the complete history of collisions by different-sized projectiles from various sources since its early solidification. Planetary bodies in the inner Solar System experienced similar sources of impactors, and the Moon is an ...
Zhiyong Xiao   +9 more
doaj   +1 more source

Morphological Indicators of a Mascon Beneath Ceres's Largest Crater, Kerwan

open access: yesGeophysical Research Letters, 2018
Gravity data of Ceres returned by the National Aeronautics and Space Administration's Dawn spacecraft is consistent with a lower density crust of variable thickness overlying a higher density mantle. Crustal thickness variations can affect the long‐term,
M. T. Bland   +10 more
doaj   +1 more source

Unveiling the High‐Voltage Reactivity and Gas Evolution With Aluminum‐Based Chloride and Oxychloride Catholytes in Solid‐State Sodium Batteries

open access: yesAdvanced Energy Materials, EarlyView.
The work examines the electrochemical and interfacial behaviors of crystalline NaAlCl4 and amorphous Na–Al–oxychloride solid electrolytes with NaNi0.5Mn0.5O2 cathodes. Operando gas evolution and ToF‐SIMS analyses highlight that pure chloride solid electrolytes offer greater interfacial stability and safety compared to the oxychloride solid electrolytes
Erick Ruoff   +2 more
wiley   +1 more source

Formation of Craters in Sand

open access: yesInternational Scholastic Journal of Science, 2007
The diameter of craters formed by spheres of varying mass dropped into sand at low speed was studied. The relationship between the diameter of the crater formed and the kinetic energy of the projectile at impact was found to be of the same general form ...
Vanissra Boonyaleepun, Se-Won Jang
doaj  

3D anatomy of the Cretaceous–Paleogene age Nadir Crater

open access: yesCommunications Earth & Environment
The Nadir Crater offshore West Africa is a recently proposed near K-Pg impact structure identified on 2D seismic. Here we present 3D seismic data that image this crater in exceptional detail, unique for any such structure, which demonstrates beyond ...
Uisdean Nicholson   +6 more
doaj   +1 more source

FAS-XAI: An Interpretable Framework for the Comparative Morphological Analysis of Lunar and Martian Impact Craters

open access: yesMathematics
Impact craters are among the most abundant geological structures on solid planetary surfaces and provide valuable information about impact processes and surface evolution.
Gabriel Marín Díaz   +2 more
doaj   +1 more source

Vichada meteorite impact effects from simulation of regional environmental consequences of a meteoroid impact on Earth

open access: yesEarth Sciences Research Journal, 2018
This study estimates the regional environmental consequences of the impactor extraterrestrial body that could produce the probable Vichada impact crater structure on the Vichada Plain, in Colombia, South America.
Orlando Hernandez Pardo
doaj   +1 more source

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