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  • SOLAR PHYSICS  (2)
  • Cell & Developmental Biology  (1)
  • Life and Medical Sciences  (1)
  • INSTRUMENTATION AND PHOTOGRAPHY
  • Physics
  • 1985-1989  (3)
  • 1965-1969
  • 1945-1949
  • 1986  (3)
Collection
Keywords
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Years
  • 1985-1989  (3)
  • 1965-1969
  • 1945-1949
Year
  • 1
    Electronic Resource
    Electronic Resource
    Section VII: High voltage electron microscopy (1986)
    New York, NY : Wiley-Blackwell
    Journal of Electron Microscopy Technique 4 (1986), S. 142-145 
    Details
    ISSN: 0741-0581
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jemt.1060040209
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    Paper (German National Licenses)
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  • 2
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    Preflare magnetic and velocity fields (1986)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: A characterization is given of the preflare magnetic field, using theoretical models of force free fields together with observed field structure to determine the general morphology. Direct observational evidence for sheared magnetic fields is presented. The role of this magnetic shear in the flare process is considered within the context of a MHD model that describes the buildup of magnetic energy, and the concept of a critical value of shear is explored. The related subject of electric currents in the preflare state is discussed next, with emphasis on new insights provided by direct calculations of the vertical electric current density from vector magnetograph data and on the role of these currents in producing preflare brightenings. Results from investigations concerning velocity fields in flaring active regions, describing observations and analyses of preflare ejecta, sheared velocities, and vortical motions near flaring sites are given. This is followed by a critical review of prevalent concepts concerning the association of flux emergence with flares
    Keywords: SOLAR PHYSICS
    Type: Energetic Phenomena on the Sun: The Solar Maximum Mission Flare Workshop. Proceedings; 33 p
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Magnetic location of C IV events in the quiet network (1986)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: Ultraviolet Spectrograph and Polarimeter (UVSP) observations of C IV intensity in the quiet sun were examined and compared to magnetograms and He I 10830 A spectroheliograms from Kitt Peak National Laboratory. The observations were made between 3 and 9 April, 1985. Spatially rastered UVSP intensity measurements were obtained at 11 wavelength positions in the 1548 A line of C IV. It was concluded that the stochastic process whereby convective shuffling of loop footprints leads to many topically dissipative events in active regions and the larger bipoles treated here continues to operate in regions of fewer, weaker flux loops, but the resulting events above threshold are less frequent.
    Keywords: SOLAR PHYSICS
    Type: NASA. Goddard Space Flight Center Coronal and Prominence Plasmas; p 383-387
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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