Results 61 to 70 of about 1,412 (268)

A Near-Earth Object Model Calibrated to Earth Impactors

open access: yesThe Astronomical Journal
The population of Earth-impacting meteoroids and their size-dependent orbital elements are key to understanding the origin of meteorites and informing planetary defense efforts. Outstanding questions include the role of collisions in depleting meteoroids
Sophie E. Deam   +18 more
doaj   +1 more source

Why a Hydrogen fireball should not be modelled as a BLEVE event

open access: yesChemical Engineering Transactions, 2022
The rapid increasing interest in the usage of Hydrogen has obviously triggered a lot of safety related questions. Apart from non-trivial questions about failure frequencies and ignition probabilities, the consequence modelling of potential events also ...
Hans Boot, Sonia Ruiz Perez
doaj   +1 more source

Harnessing metallurgical slags for water treatment: Advances in organic pollutant degradation with and without hydrogen generation, and in heavy metal removal

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Valorization of ferrous and non‐ferrous metallurgical slags for water treatment: modification routes and applications in advanced oxidation, electrochemical processes, and adsorption within a circular economy framework. Abstract The removal of recalcitrant organic pollutants and heavy metals from water remains a critical challenge for safe drinking ...
Flor‐Tania Escárcega‐Olivares   +2 more
wiley   +1 more source

Magnetar Fireballs and Short Bursts: Curved Spacetime Lensing, Quantum Electrodynamical Effects, Spectra, Polarization, and Impulse Responses

open access: yesThe Astrophysical Journal Supplement Series
Magnetar short bursts (SBs) are hard X-ray transients of durations 0.01–1 s peaking at ∼10–100 keV and are prime targets for new high-energy missions and polarimeters.
Zorawar Wadiasingh   +14 more
doaj   +1 more source

Modeling of Energy Release at the Final Stage of the Meteoroid Movement

open access: yesOpen Astronomy, 2016
The paper continues to build upon the author’s previous research on fireballs fragmentation. A model of the sudden explosive destruction of the cosmic body at the height of the maximum flash is used.
Egorova Lidia A., Lokhin Valery V.
doaj   +1 more source

Green fireballs and ball lightning

open access: yes, 2010
This paper presents evidence of an apparent connection between ball lightning and a green fireball. On the evening of the 16 May 2006 at least three fireballs were seen by many people in the skies of Queensland, Australia.
Hughes, Stephen, Stephen Hughes
core   +1 more source

Updated facility‐level inventory and LCIA of the public electricity grid in Ontario, Canada

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract As the composition of Ontario's electricity grid will change over time, it is important to have a comprehensive understanding of the environmental impacts of Ontario's electricity grid as it stands today. However, publicly available information on impacts of Ontario's electricity grid is available only in aggregate from government sources.
Jamie Rose   +2 more
wiley   +1 more source

Particular aspects of calculating affecting factors of fireballs emerging from aircraft crash

open access: yesMATEC Web of Conferences, 2018
The article reveals an algorithm of calculating the heat loads which emerge during fireball-involving accidents. By way of illustration it considers a situation when a heavy aircraft crashes in the vicinity of a typical reactor building of a nuclear ...
Komarov Alexander, Gromov Nikolay
doaj   +1 more source

Captivated by Kinesin

open access: yesCytoskeleton, EarlyView.
ABSTRACT Few proteins have inspired as much curiosity as kinesin. Since its discovery 40 years ago, kinesin has become one of the best understood molecular machines in biology, yet it continues to reveal new questions about how cells organize and move their contents.
Ronald D. Vale
wiley   +1 more source

Collimated and spinning fireballs for ultra-relativistic jets: long vs short gamma-ray bursts by angular momentum and mass ratio

open access: yesEuropean Physical Journal C: Particles and Fields
In this study, we investigate the gravitational collapses of rotating stellar systems accounting for gamma-ray burst jet progenitors. Based on the virial theorem of hadron collisional relaxations and Newtonian slow-rotating approximation, we analyze the ...
She-Sheng Xue
doaj   +1 more source

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