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Träfflista för sökning "WFRF:(Miyamoto J) "

Search: WFRF:(Miyamoto J)

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  • 2017
  • swepub:Mat__t
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  • Murari, A., et al. (author)
  • A control oriented strategy of disruption prediction to avoid the configuration collapse of tokamak reactors
  • 2024
  • In: Nature Communications. - 2041-1723 .- 2041-1723. ; 15:1
  • Journal article (peer-reviewed)abstract
    • The objective of thermonuclear fusion consists of producing electricity from the coalescence of light nuclei in high temperature plasmas. The most promising route to fusion envisages the confinement of such plasmas with magnetic fields, whose most studied configuration is the tokamak. Disruptions are catastrophic collapses affecting all tokamak devices and one of the main potential showstoppers on the route to a commercial reactor. In this work we report how, deploying innovative analysis methods on thousands of JET experiments covering the isotopic compositions from hydrogen to full tritium and including the major D-T campaign, the nature of the various forms of collapse is investigated in all phases of the discharges. An original approach to proximity detection has been developed, which allows determining both the probability of and the time interval remaining before an incoming disruption, with adaptive, from scratch, real time compatible techniques. The results indicate that physics based prediction and control tools can be developed, to deploy realistic strategies of disruption avoidance and prevention, meeting the requirements of the next generation of devices.
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  • Acciari, V. A., et al. (author)
  • Radio Imaging of the Very-High-Energy gamma-Ray Emission Region in the Central Engine of a Radio Galaxy
  • 2009
  • In: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 325:5939, s. 444-448
  • Journal article (peer-reviewed)abstract
    • The accretion of matter onto a massive black hole is believed to feed the relativistic plasma jets found in many active galactic nuclei (AGN). Although some AGN accelerate particles to energies exceeding 10(12) electron volts and are bright sources of very-high-energy (VHE) gamma-ray emission, it is not yet known where the VHE emission originates. Here we report on radio and VHE observations of the radio galaxy Messier 87, revealing a period of extremely strong VHE gamma-ray flares accompanied by a strong increase of the radio flux from its nucleus. These results imply that charged particles are accelerated to very high energies in the immediate vicinity of the black hole.
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  • Result 1-10 of 76
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journal article (61)
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peer-reviewed (74)
other academic/artistic (1)
Author/Editor
Bernardini, E. (21)
Rhode, W. (21)
Mase, K. (19)
Bai, X. (18)
Rizzo, A. (18)
Adams, J. (18)
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Rott, C. (18)
Sarkar, S. (18)
Hasegawa, Y. (17)
Kolanoski, H. (17)
Sander, H. G. (17)
Beattie, K. (17)
Landsman, H. (17)
Inaba, M. (17)
Van Eijndhoven, N. (17)
Schlenstedt, S. (17)
Bay, R. (17)
Berghaus, P. (17)
Berley, D. (17)
Blaufuss, E. (17)
Braun, J. (17)
Christy, B. (17)
De Clercq, C. (17)
Desiati, P. (17)
DeYoung, T. (17)
Fadiran, O. (17)
Filimonov, K. (17)
Gallagher, J. (17)
Gerhardt, L. (17)
Goldschmidt, A. (17)
Halzen, F. (17)
Hanson, K. (17)
Helbing, K. (17)
Hoshina, K. (17)
Hultqvist, K. (17)
Karle, A. (17)
Kohnen, G. (17)
Luenemann, J. (17)
Madsen, J. (17)
Montaruli, T. (17)
Morse, R. (17)
Nahnhauer, R. (17)
Olivas, A. (17)
Pieloth, D. (17)
Rawlins, K. (17)
Resconi, E. (17)
Ryckbosch, D. (17)
Schmidt, T. (17)
Seckel, D. (17)
Seunarine, S. (17)
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Swedish Museum of Natural History (1)
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English (76)
Research subject (UKÄ/SCB)
Natural sciences (62)
Medical and Health Sciences (8)
Engineering and Technology (5)

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