Results 61 to 70 of about 1,101 (264)
Why a Hydrogen fireball should not be modelled as a BLEVE event
Chemical 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
Data on 824 fireballs observed by the digital cameras of the European Fireball Network in 2017-2018. II. Analysis of orbital and physical properties of centimeter-sized meteoroids [PDF]
, 2022 Meteoroids impacting the Earth on a daily basis are fragments of asteroids and comets. By studying fireballs produced during their disintegration in the atmosphere, we can gain information about their source regions and the properties of their parent ...
J. Borovička +5 more
core +2 more sources
Stability of Fireballs and γ-Ray Bursts [PDF]
, 1994 Fireballs are an essential part of any cosmological fl-ray burst. We drive here a stability criterion for fireballs and show that fireballs are Rayleigh-Taylor unstable in any region in which the entropy decreases outward.
Eli Waxman, Tsvi Piran
core
Biological Reviews, EarlyView.ABSTRACT The environmental conditions organisms experience during early development can have powerful and sustained effects on morphology, physiology, behaviour, and performance. Such developmental effects can influence reproductive success, survival, and life‐history strategies and can be transmitted across generations (i.e.
Ondi L. Crino +7 more
wiley +1 more source
Combination of infrasound signals and complementary data for the analysis of bright fireballs [PDF]
, 2019 International audienceThe flux densities of meteoroids and asteroids in the intermediate sizerange (approx. 20 cm - 30 m) impacting the Earth's Atmosphere still havelarge uncertainties.
Mialle, Pierrick +7 more
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A Near-Earth Object Model Calibrated to Earth Impactors
The Astronomical JournalThe 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
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Particular aspects of calculating affecting factors of fireballs emerging from aircraft crash
MATEC 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
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Measurements of fireball onset
Physics of Plasmas, 2018 Laser-based measurements of the characteristic features of fireball onset and stabilization in response to a stepped voltage applied to an anode immersed in a low pressure (100 mTorr) helium afterglow are reported. These include spatial and temporal evolution of metastable species, electron density, and electric field magnitude as measured by planar ...
Scheiner, Brett +4 more
openaire +2 more sources
Business Strategy and the Environment, EarlyView.ABSTRACT This study analyzed Industry 4.0 (I4.0) technology applications in agribusiness and the role of strategic stakeholders, engagement methods, and other critical aspects data sharing, confidentiality, integrity, decision‐making, and sector‐specific requirements in promoting circularity.
Simone Sehnem +3 more
wiley +1 more source
Evidence from spectra of bright fireballs [PDF]
, 1973 Spectral data with dispersions from 11 to 94 A/mm on 4 fireballs of actual brightness of -4 to -12 magnitude and with velocities of about 30 km/s at 70 to 80 km heights are used for studies of meteor radiation problems.
Ceplecha, Z.
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