Results 91 to 100 of about 3,781,710 (350)

Emission of cosmic rays from Jupiter: magnetospheres as possible sources of cosmic rays

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
Measurements made recently with the PAMELA satellite during a period of 8 years have shown with good evidence that a fraction of the cosmic rays detected on Earth comes from Jupiter.
G. Pizzella
doaj   +1 more source

Galactic Cosmic Rays: The first detection of TeV gamma-rays from Red Dwarfs [PDF]

open access: yesEPJ Web of Conferences, 2019
The present point of view on the sources of cosmic rays in Galaxy considers explosions of supernovae as sources of these particles up to energies of 1017 eV.
Sinitsyna V.G.   +2 more
doaj   +1 more source

Boron Nitride Nanomaterials Trigger Immunomodulatory Effects in Human Broncho‐Epithelial Cells by Modulating Eicosanoid Lipid Signaling

open access: yesAdvanced Science, EarlyView.
This study demonstrates that BNNT exposure disrupts lipid homeostasis in bronchial epithelial cell cultures and activates eicosanoid lipid biosynthesis, producing inflammatory lipid mediators like leukotrienes. These effects are more pronounced in asthmatic cell cultures compared to healthy ones.
Govind Gupta   +14 more
wiley   +1 more source

Modeling the gamma-ray emission produced by runaway cosmic rays in the environment of RX J1713.7-3946

open access: yes, 2010
Diffusive shock acceleration in supernova remnants is the most widely invoked paradigm to explain the Galactic cosmic ray spectrum. Cosmic rays escaping supernova remnants diffuse in the interstellar medium and collide with the ambient atomic and ...
Aharonian, F. A.   +10 more
core   +2 more sources

An investigation of mass composition of ultra-high energy cosmic rays with energies above 1019 eV via the study of extensive air showers [PDF]

open access: yesSerbian Astronomical Journal, 2012
The electron and muon components of extensive air shower (EAS) with energies above 1019 eV are analyzed via various giant EAS arrays. A varying property of showers is observed for two energy ranges; higher and lower than (3 − 4) x 1019 eV.
Doostmohammadi S., Fatemi S.J.
doaj   +1 more source

Visualizing and Quantifying Impact with Mechanochromic Sensing Paints Based on Self‐Assembled Polydiacetylene‐Silk Core‐Shell Vesicles

open access: yesAdvanced Science, EarlyView.
Tracking physical impacts is important in many fields. Self‐assembled microparticles made from polydiacetylene and silk fibroin that change color from blue to red when hit can provide an alternative approach to traditional mechanical transducers, quantitatively visualizing impact with responses ranging from <100 to 770 N.
Marco Lo Presti   +4 more
wiley   +1 more source

Testing Fundamental Physics with High-Energy Cosmic Rays [PDF]

open access: yes, 2000
Cosmic rays may provide opportunities for probing fundamental physics. For example, ultra-high-energy cosmic rays might originate from the decays of metastable heavy particles, and astrophysical gamma rays can be used to test models of quantum gravity ...
Ellis, John
core   +1 more source

Cosmic rays, aerosol formation and cloud-condensation nuclei: sensitivities to model uncertainties [PDF]

open access: yesAtmospheric Chemistry and Physics, 2011
The flux of cosmic rays to the atmosphere has been reported to correlate with cloud and aerosol properties. One proposed mechanism for these correlations is the "ion-aerosol clear-air" mechanism where the cosmic rays modulate atmospheric ion ...
E. J. Snow-Kropla   +3 more
doaj   +1 more source

SEARCHES FOR LARGE-SCALE ANISOTROPY IN THE ARRIVAL DIRECTIONS OF COSMIC RAYS DETECTED ABOVE ENERGY OF 1019 eV AT THE PIERRE AUGER OBSERVATORY AND THE TELESCOPE ARRAY [PDF]

open access: yes, 2014
Spherical harmonic moments are well-suited for capturing anisotropy at any scale in the flux of cosmic rays. An unambiguous measurement of the full set of spherical harmonic coefficients requires full-sky coverage.
A. Aab   +499 more
semanticscholar   +1 more source

Passivation‐Induced Species Dynamics and Microstructural Evolution in Solid‐State Lithium–Sulfur Cathodes

open access: yesAdvanced Science, EarlyView.
The formation of insulating Li2S during discharge in solid‐state lithium–sulfur batteries passivate reaction sites and limits sulfur utilization. In this work, a microstructure‐resolved modeling framework coupling transport and reaction kinetics is developed to predict charge–discharge behavior and reveal particle‐scale species evolution and incomplete
Arpan K. Sharma   +4 more
wiley   +1 more source

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