Results 121 to 130 of about 266,284 (323)

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

Cosmic Rays and Climate [PDF]

Surveys in Geophysics, 2007
Among the most puzzling questions in climate change is that of solar-climate variability, which has attracted the attention of scientists for more than two centuries. Until recently, even the existence of solar-climate variability has been controversial - perhaps because the observations had largely involved temporary correlations between climate and ...
openaire   +4 more sources

Lateglacial and Holocene mountain glacier fluctuations near Cape Farewell South Greenland inferred from 10Be moraine dating

Journal of Quaternary Science, EarlyView.
ABSTRACT We report 43 new 10Be exposure ages and six 26Al/10Be measurements from replicates from a small piedmont mountain glacier located at Cape Farewell (south Greenland) and temperature anomalies estimated from equilibrium‐line altitude (ELA) changes derived from 3D glacier reconstruction carried out using the ‘GlaRe’ toolbox.
Vincent Jomelli, Joanna Charton, José M. Fernández‐Fernández, Régis Braucher, Didier Swingedouw, Amen Al Yaari, Marc Oliva, Stephanie Gairoard, Julia García‐Oteyza, Aster Team   +9 more
wiley   +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

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

Supernova Origin of Cosmic Rays [PDF]

, 1956
Satio Hayakawa
openalex   +1 more source

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

Inflatonic baryogenesis with large tensor mode

Physics Letters B, 2015
We consider a complex inflaton field with a CP asymmetric term for its potential. This CP asymmetric term produces the global charge of the inflaton after inflation.
Naoyuki Takeda
doaj   +1 more source

Anomalous Distribution of Nuclear Disintegration in Photographic Emulsions Exposed to Cosmic Rays : Double Stars [PDF]

, 1948
L. Leprince-Ringuet, J. Heidmann
openalex   +1 more source