Results 31 to 40 of about 400,556 (315)
Dynamics of space debris removal: A review [PDF]
arXiv, 2023 Space debris, also known as "space junk," presents a significant challenge for all space exploration activities, including those involving human-onboard spacecraft such as SpaceX's Crew Dragon and the International Space Station. The amount of debris in space is rapidly increasing and poses a significant environmental concern.
arxiv
Formation of Phobos and Deimos via a Giant Impact [PDF]
Icarus 252 (2015) 334-338, 2015 Although the two moons of Mars, Phobos and Deimos, have long been thought to be captured asteroids, recent observations of their compositions and orbits suggest that they may have formed from debris generated by one or more giant impacts of bodies with ~ 0.01 x target mass.
arxiv +1 more source
Efficient solvers for shallow-water Saint-Venant equations and debris transportation-deposition models [PDF]
arXiv, 2021 This research is aimed at achieving an efficient digital infrastructure for evaluating risks and damages caused by tsunami flooding. It is mainly focused on the suitable modeling of debris dynamics for a simple (but accurate enough) assessment of damages. For different reasons including computational performance and Big Data management issues, we focus
arxiv
Debris cloud of India Anti-Satellite Test to Microsat-R Satellite [PDF]
Heliyon 2020, 2020 Understanding the motion of debris cloud produced by the anti-satellite test can help us to know the danger of these tests. This study presents the orbit status of 57 fragments observed by the CelesTrak and presented in the NORAD Two-Line Element Sets of India Anti-Satellite Test.
arxiv +1 more source
Journal of Hydrology and Hydromechanics, 2019 The aim of the investigation was assessment of spatial variability of the characteristics of snowpack, including the snow water equivalent (SWE) as the main hydrological characteristic of a seasonal snow cover.
Komarov Anton Yu. +3 more
doaj +1 more source
Ecotoxicology and Environmental Safety, 2021 Alkyl-PAHs are the predominant form of PAHs in crude oils which are supposed to demonstrate different toxicities compared to non-alkyl PAHs. Little information is available about the toxicity of alkyl-PAHs on marine Artemia.
Yi Cong +6 more
doaj
Applied Sciences, 2023 Soils from decommissioned Hg mine sites usually exhibit high levels of total mercury concentration. This work examines the behavior of mercury in the atmosphere on samples of contaminated debris of a demolished metallurgical plant present in La Soterraña
Rafael Rodríguez +3 more
doaj +1 more source
AerospaceAccurate prediction of the on-orbit positions of Low Earth Orbit (LEO) satellites is essential for mission success, operational efficiency, and safety.
Yang Guo, Boyang Wang, Zhengxu Zhao
doaj +1 more source
Frontiers in Marine Science, 2015 Marine litter is a global challenge that has recently received policymakers’ attention, with new environmental targets in addition to changes to old legislation.
Lucy Cheryl Woodall +4 more
doaj +1 more source
Nano Select, 2023 Explanted polypropylene (PP) surgical mesh has frequently been reported to show surface alterations, such as cracks and flaking. However, to date the consequence of PP mesh degradation is not clearly understood, particularly its potential to influence ...
Nicholas T. H. Farr +4 more
doaj +1 more source