Results 121 to 130 of about 262,752 (289)

Observing cosmic-ray extensive air showers with a silicon imaging detector. [PDF]

Sci Rep, 2023
Kawanomoto S, Koike M, Bradfield F, Fujii T, Komiyama Y, Miyazaki S, Morokuma T, Murayama H, Oguri M, Terai T.   +9 more
europepmc   +1 more source

Changes in Amplitude of the 27-day Variation in Cosmic Ray Intensity during the Solar Cycle of Activity [PDF]

, 1958
D. Venkatesan
openalex   +1 more source

Luminescence dating of palaeoshoreline deposits from Khyargas Nuur, Western Mongolia: A comparative study of multigrain and single‐grain K‐feldspar dating

Journal of Quaternary Science, EarlyView.
ABSTRACT The evolution of lakes in western Mongolia and their responses to climate changes and glacial meltwater input remain poorly understood. This study evaluates the reliability of multigrain and single‐grain K‐feldspar post‐infrared infrared stimulated luminescence (IRSL) (pIRIR) dating applied to palaeoshoreline sediments at Khyargas Nuur ...
Neda Rahimzadeh, Dennis Wolf, Sumiko Tsukamoto, Manfred Frechen, Frank Lehmkuhl   +4 more
wiley   +1 more source

Highlight Talk from Super-Kamiokande

Universe, 2019
Super-Kamiokande (SK), a 50 kton water Cherenkov detector in Japan, is observing both atmospheric and solar neutrinos. It is also searching for supernova (relic) neutrinos, proton decays and dark matter-like particles. A three-flavor oscillation analysis
Yuuki Nakano, on behalf of the Super-Kamiokande Collaboration   +1 more
doaj   +1 more source

Low‐Frequency Raman Spectra of Natural Pyrrhotites: Polarization Dependence for Its Lattice Modes

Journal of Raman Spectroscopy, EarlyView.
The present study found low‐wavenumber Raman modes of pyrrhotite Fe1‐xS at ~68, ~87, ~117, and ~230 cm−1 for the first time, thanks to a lab‐built Raman spectrometer, in which the optical path of the incident laser was purged by Ar gas. The sufficiently high signal‐to‐noise and signal‐to‐base ratios enabled us to obtain the polarization dependence of ...
Shu‐hei Urashima, Mana Kito, Shiori Nakajima, Kenichi Oguchi, Aruto Kashima, Hiroharu Yui   +5 more
wiley   +1 more source

Structural health monitoring of sabo check dams with cosmic-ray muography. [PDF]

iScience, 2023
Oláh L, Tanaka HKM, Mori T, Sakatani Y, Varga D.   +4 more
europepmc   +1 more source

Galactic Turbulence and the Origins of Cosmic Rays and the Galactic Magnetic Field [PDF]

, 1957
J. H. Piddington
openalex   +1 more source

Cosmic ray acceleration

Astroparticle Physics, 2013
This review describes the basic theory of cosmic ray acceleration by shocks including the plasma instabilities confining cosmic rays near the shock, the effect of the magnetic field orientation, the maximum cosmic ray energy and the shape of the cosmic ray spectrum.
openaire   +3 more sources

Probing the Stability of Convolution Neural Networks and Support Vector Machines With Transmission Low Wavenumber Raman Spectroscopic Data

Journal of Raman Spectroscopy, EarlyView.
No spectral dataset is perfect, but how severely will imperfection cost you? This study finds that CNNs are more robust against spectral errors than SVMs, particularly with data that exhibits day‐to‐day calibration‐type errors. However, when no artefacts are present, the SVM produces the best model.
Mitchell Chalmers, Keith C. Gordon, Brendan McCane, Sara J. Fraser‐Miller   +3 more
wiley   +1 more source

Neural networks for separation of cosmic gamma rays and hadronic cosmic rays in air shower observation with a large area surface detector array

Machine Learning: Science and Technology
The Tibet AS γ experiment has been observing cosmic gamma rays and cosmic rays in the energy range from teraelectron volts to several tens of petaelectron volts with a surface detector array since 1990.
Sousuke Okukawa, Kazuyuki Hara, Kinya Hibino, Yusaku Katayose, Kazumasa Kawata, Munehiro Ohnishi, Takashi Sako, Takashi K Sako, Makio Shibata, Atsushi Shiomi, Masato Takita   +10 more
doaj   +1 more source