Results 141 to 150 of about 3,608,924 (307)

Cosmic Rays: Studying the Origin [PDF]

open access: yesarXiv, 1997
Investigations of the origin of cosmic rays are presented. Different methods are discussed: studies of cosmic gamma rays of energy from 30 MeV to about 10^15 eV (since photons point to their places of origin), studies of the mass composition of cosmic rays (because it reflects source morphology), and studies of cosmic rays with energy above 10^19 eV
arxiv  

Cosmic-Ray Bursts [PDF]

open access: yesPhysical Review, 1933
In cloud-chamber experiments the frequent occurrence of associated tracks has been observed.(1) It has been pointed out that a simple binary collision cannot explain all the associated tracks.(2)
openaire   +4 more sources

Solar Modulation of Cosmic Rays [PDF]

open access: yes, 2013
This is an overview of the solar modulation of cosmic rays in the heliosphere. It is a broad topic with numerous intriguing aspects so that a research framework has to be chosen to concentrate on.
M. Potgieter
semanticscholar   +1 more source

Streaming cold cosmic ray back-reaction and thermal instabilities across the background magnetic field

open access: yes, 2012
Using the multi-fluid approach, we investigate streaming and thermal instabilities of the electron-ion plasma with homogeneous cold cosmic rays drifting perpendicular to the background magnetic field.
Anatoly K. Nekrasov   +22 more
core   +1 more source

Artificial Intelligences: A Bridge Toward Diverse Intelligence and Humanity's Future

open access: yesAdvanced Intelligent Systems, EarlyView.
Many discussions of artificial intelligence fail to address deeper questions being raised by advances in developmental biology, neuroscience, bioengineering, and philosophy of mind. Novel beings, including technologically and biologically augmented humans, engineered life forms, hybrots, and others, require tools of the emerging field of diverse ...
Michael Levin
wiley   +1 more source

Cosmic ray strangelets

open access: yesJournal of Physics G: Nuclear and Particle Physics, 2005
Searching for strangelets in cosmic rays may be the best way to test the possible stability of strange quark matter. I review calculations of the astrophysical strangelet flux in the GV--TV rigidity range, which will be investigated from the Alpha Magnetic Spectrometer (AMS-02) on the International Space Station, and discuss the merits of strangelets ...
openaire   +4 more sources

Multi‐Century Grindstone Quarrying at Brumby Yard, Queensland

open access: yesArchaeology in Oceania, EarlyView.
ABSTRACT The timing and duration of prehistoric quarrying is poorly understood within Australia, with limited ages available for quarries owing to the difficulties in dating these rock‐sediment constructions. We report the first multi‐sample, optically stimulated luminescence ages from quarry pits in Brumby Yard, an Aboriginal grindstone quarry ...
Kieran McGee   +4 more
wiley   +1 more source

A database of charged cosmic rays [PDF]

open access: yes, 2013
Aims. This paper gives a description of a new online database and associated online tools (data selection, data export, plots, etc.) for charged cosmic-ray measurements.
R. Taillet, D. Maurin, F. Melot
semanticscholar   +1 more source

Economic Rationality and International Humanitarianism: Ryōkichi Sagane's Advocacy Regarding the Introduction of Foreign Nuclear Reactors to Japan**

open access: yesBerichte zur Wissenschaftsgeschichte, EarlyView.
Abstract The 2011 Fukushima Daiichi Nuclear Power Plant accident underscored the crucial role of nuclear engineering experts. However, the specific arguments and motivations of scientists advocating for the introduction of foreign reactors remain unclear.
Masahiro Inohana
wiley   +1 more source

The AMS-02 Cosmic-Ray Deuteron Flux is Consistent with a Secondary Origin

open access: yesThe Astrophysical Journal Letters
The recent measurements of cosmic-ray (CR) deuteron fluxes by AMS-02 show that the rigidity dependence of deuterons is similar with that of protons but flatter than ^3 He, which has been attributed to the existence of primary deuterons with abundance ...
Qiang Yuan, Yi-Zhong Fan
doaj   +1 more source

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