Results 31 to 40 of about 17,020 (222)
Mechanical Engineering Journal, 2016 As a preliminary study, the effects of target temperature on ejecta size were examined at an impact velocity of 3.5 km/s with the goal of improving the ISO11227.
Masahiro NISHIDA +7 more
doaj +1 more source
AerospaceSafe landings are imperative to accomplish NASA’s Artemis goal to enable human exploration on the Moon, including sample collection missions. However, a process known as plume surface interaction (PSI) presents a significant hazard to lunar landings. PSI
Ariana Bueno +5 more
doaj +1 more source
Advanced Energy Materials, EarlyView.This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim +5 more
wiley +1 more source
High‐Fidelity Cretaceous‐Paleogene Boundary Investigations: Records of Impact and Transport
Geochemistry, Geophysics, GeosystemsThe Chicxulub impact on the Yucatán Peninsula triggered the end‐Cretaceous mass extinction 66 million years ago, but physical models still struggle to accurately describe ejecta generation and transport from this and other large meteorite impacts.
Catherine H. Ross +2 more
doaj +1 more source
Cosmic noise absorption signature of particle precipitation during interplanetary coronal mass ejection sheaths and ejecta [PDF]
Annales Geophysicae, 2020 We study here energetic-electron (E>30 keV) precipitation using cosmic noise absorption (CNA) during the sheath and ejecta structures of 61 interplanetary coronal mass ejections (ICMEs) observed in the near-Earth solar wind between 1997 and ...
E. Kilpua +13 more
doaj +1 more source
Water Electrolysis Technologies for Extraterrestrial Water Resource Conversion
EcoEnergy, EarlyView.This paper reviews four water electrolysis technologies for extraterrestrial water conversion: alkaline water electrolysis, proton exchange membrane water electrolysis, solid oxide water electrolysis, and anion exchange membrane water electrolysis. It elaborates on their mechanisms, components, and integration, highlighting challenges such as water ...
Yawen Jiang +6 more
wiley +1 more source
A Drone‐Based Thermophysical Investigation of Barringer Meteorite Crater Ejecta
Earth and Space ScienceImpact cratering processes are ubiquitous throughout our solar system, and the distribution and modification of impact ejecta are sensitive to variable environmental and geologic surface conditions.
Cole A. Nypaver +3 more
doaj +1 more source
Geological Journal, EarlyView.Chemical states of Se and Br atoms in the KPg boundary sediments from Stevns Klint were studied using XAFS spectroscopy. The high concentrations of Se4+ could become an index of the degree to which the global environment was soiled with dust and ash derived from impact ejecta or volcanic eruptions.
Kei‐ichiro Murai +5 more
wiley +1 more source
Dynamic Fragmentation of Natural Ceramic Tiles: Ejecta Measurements and Kinetic Consequences [PDF]
, 2013 Velocity and size measurements of ejecta derived from impacts of railgun-launched projectiles into 10 mm thick gabbro tiles are examined. Fragmentation of the target and the ejecta velocity field are found to be governed by Hertzian fracture and the ...
Rogers, Robert +4 more
core +1 more source
Research Progress on Thermal Runaway and Thermal Management of Lithium‐Ion Batteries
Safety Science and Technology, EarlyView.This review summarizes thermal runaway mechanisms, propagation pathways, mitigation strategies, and intelligent thermal management technologies for lithium‐ion batteries, highlighting the transition from passive heat dissipation to integrated safety regulation through advanced cooling, barrier materials, sensing, machine learning, and digital‐twin ...
Songrong Li +4 more
wiley +1 more source