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  • 50-Hz magnetic fields  (1)
  • Frequency-magnitude relationship  (1)
  • Meteorological data time series  (1)
  • 1
    Electronic Resource
    Electronic Resource
    A new general frequency-magnitude relationship (1980)
    Springer
    Pure and applied geophysics 119 (1980), S. 196-206 
    Details
    ISSN: 1420-9136
    Keywords: Earthquake statistics ; Frequency-magnitude relationship ; Western Alps
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract A new frequency-magnitude relationship which takes into account the existence of an upper limit for the magnitude, and generalizes the previous ones, is proposed. The formula obtained has been applied to the Western Alps area activity during the period 1950–75, and in addition to the limiting magnitude value, some useful results for the calculation of the seismic risk have been deduced using Gumbel's theory. The use of the present relationship appears to be necessary when long periods of time are considered, while for the study of the annual probabilities the Gutenberg and Richter formula is shown to be sufficiently accurate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00878730
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Climate Change from Meteorological Observations and Underground Temperatures in Northern Italy (1998)
    Springer
    Studia geophysica et geodaetica 42 (1998), S. 30-40 
    Details
    ISSN: 1573-1626
    Keywords: Meteorological data time series ; climatic signal ; synthetic temperature-depth profile ; climate variation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Notes: Abstract The change in the air temperature recorded at the Genoa University observatory over 155 years followed the change in the wind direction. A warming occurred both from 1838 to 1869 and from 1890 to 1950. The latter warm period was followed by a cooling in the 1950s, when the lowest mean annual temperature occurred. Generally, a warm period corresponds to a growth in the southern components of the ground wind direction; the increase in the southerly circulation in the Mediterranean yields increased stability in dry weather. Temperature-depth data measured in a geothermal borehole reflect this climate change. A comparison between the measurements and a synthetic temperature profile, based on the air temperature history recorded at the observatory, indicates that the average temperature prior to the meteorological time series was about 0.6 K higher than the average of the decade 1973-1982.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1023364221560
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Effects of pulsed extremely-low-frequency magnetic fields on skin wounds in the rat (1988)
    New York, NY [u.a.] : Wiley-Blackwell
    Bioelectromagnetics 9 (1988), S. 53-62 
    Details
    ISSN: 0197-8462
    Keywords: 50-Hz magnetic fields ; pulsed magnetic fields ; wound healing ; Life and Medical Sciences ; Occupational Health and Environmental Toxicology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Physics
    Notes: Rats with skin-wounds surgically created on their backs were exposed immediately after surgery and every 12 h thereafter to pulsed, extremely-low-frequency magnetic fields. The shape of the pulse was a positive triangle (50 Hz, 8 mT peak). The rate of healing of skin wounds was evaluated macroscopically and by light and electron microscopy at 6, 12, 21, and 42 days after the operation. A significant increase in the rate of wound contraction was found in rats treated with magnetic fields. Forty-two days after surgery all treated animals show fully closed wounds, while control rats at the same time intervals still lacked a final 6% of the wound surface to be covered. Treated rats showed earlier cellular organization, collagen formation and maturation, and a very early appearance of newly formed vascular network.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bem.2250090105
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    Paper (German National Licenses)
    Fulltext
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