Results 31 to 40 of about 978 (216)
Autonomous spectrographic system to analyse the main elements of fireballs and meteors
Earth, Planets and Space, 2018 We present a meteor observation system based on imaging CCD cameras, wide-field optics and a diffraction grating. This system is composed of two independent spectrographs with different configurations, which allows us to capture images of fireballs and ...
Francisco Ángel Espartero +4 more
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Hydrodynamics from free-streaming to thermalization and back again
Physics Letters B, 2020 We study the evolution of the Knudsen and Reynolds numbers in (0+1)-dimensionally expanding fluids with Bjorken symmetry for systems whose microscopic mean free path rises more quickly with time than usually assumed.
Chandrodoy Chattopadhyay, Ulrich Heinz
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Thermalization, viscosity and the averaged null energy condition
Journal of High Energy Physics, 2018 We explore the implications of the averaged null energy condition for thermal states of relativistic quantum field theories. A key property of such thermal states is the thermalization length.
Luca V. Delacrétaz +3 more
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DataWe present a curated, openly accessible dataset of 71 regional meteor events simultaneously recorded by optical and infrasound instrumentation between 2006 and 2011. These events were captured during an observational campaign using the all-sky cameras of
Elizabeth A. Silber +3 more
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EPJ Web of Conferences, 2017 The non extensive aspects of pT distributions obtained in high energy collisions are discussed in relation to possible fractal structure in hadrons, in the sense of the thermofractal structure recently introduced. The evidences of self-similarity in both
Deppman Airton, Megías Eugenio
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Advanced Materials, EarlyView.Highly water‐soluble dicationic bis(indolium) dyes have been prepared, showing excellent two‐photon absorption and light emission. Their fluorescence behavior discloses an unusual increasing blue shift with increasing solvent polarity, which, in parallel, is beneficial for enhanced detection in biological media.
Carlos Benitez‐Martin +5 more
wiley +1 more source
Fireballs on Mars and Earth, impact process and seismic effects [PDF]
, 2022 This work investigated new crater clusters on Mars that form when the impactor breaks up in the atmosphere. Bulk search for seismic signals from fireballs on Earth was made, to compare outcomes between Earth and Mars. Results from this study are relevant
Neidhart, Tanja
core
The Geography of Success: A Spatial Analysis of Export Intensity in the Italian Wine Industry
Agribusiness, EarlyView.ABSTRACT This paper investigates the paradox of how Italy's fragmented, SME‐dominated wine industry achieves global export success. Moving beyond purely firm‐centric explanations, we test whether export intensity is spatially dependent, clustering geographically in regional ecosystems.
Nicolas Depetris Chauvin, Jonas Di Vita
wiley +1 more source
Baozha yu ChongjiTo investigate the propagation characteristics of blast shock waves and the thermal effects of fireballs in tunnel explosions involving thermobaric explosives, numerical simulations were conducted using OpenFOAM.
Feixiang CHEN +5 more
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The Sounds of the Little and Big Bangs
Universe, 2017 Studies on heavy ion collisions have discovered that tiny fireballs of a new phase of matter—quark gluon plasma (QGP)—undergo an explosion, called the Little Bang. In spite of its small size, not only is it well described by hydrodynamics, but even small
Edward Shuryak
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