Results 71 to 80 of about 3,781,710 (350)

Cosmic rays [PDF]

open access: yesProceedings of the 15th International Conference on Availability, Reliability and Security, 2020
When evidence is recovered from a suspected crime scene and a criminal prosecution is mounted, the defence team may attempt to formulate an alternative non-criminal explanation for the existence of that evidence. Examples from the digital realm include the "Trojan Horse Defence" and the "Inadvertent Download Defence" against the charge of possession of
openaire   +2 more sources

A predictive analytic model for the solar modulation of cosmic rays [PDF]

open access: yes, 2015
An important factor limiting our ability to understand the production and propagation of cosmic rays pertains to the effects of heliospheric forces, commonly known as solar modulation.
I. Cholis, D. Hooper, T. Linden
semanticscholar   +1 more source

Structural Porosity and Low Mineral Density in Enamel Rods Drive Molar Incisor Hypomineralisation

open access: yesAdvanced Functional Materials, EarlyView.
This study uses advanced imaging modalities on multiple length scales to show that molar‐incisor hypomineralization does not present as a locally homogeneous pathology. Instead, microstructural defects, characterized through non‐mineralized, protein‐rich sheaths and an altered mineral structure in between prism rods, resulting in local differences in ...
Katharina Jähn‐Rickert   +14 more
wiley   +1 more source

GZK Violation - a Tempest in a (Magnetic) Teapot? [PDF]

open access: yes, 2000
The apparent lack of suitable astrophysical sources for the observed highest energy cosmic rays (UHECRs) within $\approx 20$ Mpc is the "GZK Paradox". We constrain representative models of the extra-galactic magnetic field structure by Faraday Rotation ...
Farrar, Glennys R., Piran, Tsvi
core   +2 more sources

The mass composition of cosmic rays measured with LOFAR

open access: yesEPJ Web of Conferences, 2017
High-energy cosmic rays, impinging on the atmosphere of the Earth initiate cascades of secondary particles, the extensive air showers. The electrons and positrons in the air shower emit electromagnetic radiation.
Hörandel Jörg R.   +15 more
doaj   +1 more source

Precision Measurement of Boron to Carbon flux ratio in Cosmic Rays from 2 GV to 1.8 TV with the Alpha Magnetic Spectrometer on the International Space Station.

open access: yes, 2016
AMS-02 is wide acceptance high-energy physics experiment installed on the International Space Station in May 2011 and operating continuously since then.
M. Aguilar   +265 more
semanticscholar   +1 more source

Energy estimation of cosmic rays with the Engineering Radio Array of the Pierre Auger Observatory [PDF]

open access: yes, 2015
The Auger Engineering Radio Array (AERA) is part of the Pierre Auger Observatory and is used to detect the radio emission of cosmic-ray air showers. These observations are compared to the data of the surface detector stations of the Observatory, which ...
T. P. A. C. A. Aab   +449 more
semanticscholar   +1 more source

Metallofullerenol Sc3N@C80(OH)18: A New Generation Radioprotector Protecting Human Erythrocytes Against Multiple Biochemical Damage Modes Upon Gamma Irradiation, Identifying It as a Scavenger of Short‐ and Long‐Lived Radicals

open access: yesAdvanced Healthcare Materials, EarlyView.
Metallofullerenol Sc3N@C80(OH)18 demonstrates strong radioprotective properties as a scavenger of both short‐ and long‐lived radicals. The study reveals protection of human erythrocytes from γ‐radiation–induced biochemical damage via post‐irradiation removal of primary and secondary reactive oxidants, supported by pulse radiolysis kinetics.
Jacek Grebowski   +6 more
wiley   +1 more source

GRBs on probation: testing the UHE CR paradigm with IceCube

open access: yes, 2011
Gamma ray burst (GRB) fireballs provide one of very few astrophysical environments where one can contemplate the acceleration of cosmic rays to energies that exceed 10^20 eV.
Ahlers   +47 more
core   +1 more source

High energy cosmic rays

open access: yesScholarpedia, 2016
New observations with ESO’s Very Large Telescope (VLT) in Chile have revealed alignments over the largest structures ever discovered in the Universe. A European research team has found that the rotation axes of the central supermassive black holes in a ...
Lu Lu, A. Watson
semanticscholar   +1 more source

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