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  • 1985-1989  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Large Barkhausen discontinuity in (Fe1−xCox)-Si,B amorphous wire (abstract) (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 61 (1987), S. 4156-4156 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The magnetostrictive amorphous wires made by the in-water quenching technique have been shown to exhibit the large Barkhausen discontinuities,1 which make them attractive for sensor application.1 We reported earlier that the reentrant magnetic behavior of these wires is attributable to the magnetostrictive anisotropy caused by the residual stresses quenched in during solidification in the water.23 For further understanding of the magnetoelastic effect in amorphous wires, we measured the magnetic properties including the magnetic domain patterns for the in-water quenched (Fe1−xCox)-Si,B amorphous wires. The large Barkhausen discontinuity was observed only for wires having the positive magnetostriction. We found that the compositional variations of the width of labyrinthine domain and the critical field for reverse domain nucleation agree with those expected from the magnetostriction change with composition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.338964
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Measurments of attenuation and refractive dispersion due to atmospheric water vapor at 80 and 240 GHz (1985)
    Springer
    International journal of infrared and millimeter waves 6 (1985), S. 313-322 
    Details
    ISSN: 1572-9559
    Keywords: millimeter waves ; propagation ; water vapor ; attenuation ; refractive dispersion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Field line-of-sight propagation experiments were made at 80 and 240 GHz on a horizontal path of 810 m. The measured attenuations showed quadratic dependences on atmospheric water vapor density, and absorptions in excess of theoretical predictions were observed at both frequencies, while the measured refractive dispersion between these two frequencies showed a linear dependence on water vapor density and was in good agreement with theoretical prediction. Liebe's model for water vapor attenuation including empirical continuum absorption is confirmed to be effective for 80 and 240 GHz.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01041347
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Excess attenuation of millimeter waves at window region due to atmospheric water vapor (1986)
    Springer
    International journal of infrared and millimeter waves 7 (1986), S. 795-812 
    Details
    ISSN: 1572-9559
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The attenuation of 245.52 GHz millimeter wave was measured through a near ground horizontal path in order to study the anomalous water vapor absorption at the window region. The result demonstrates that the attenuation coefficient includes the quadratic dependence on the water vapor density. The quadratic component of the water vapor density in the expression of the attenuation was assumed to arises from the contribution of water dimers alone, then the concentration of water dimers was estimated adopting the published theoretical water dimers absorption coefficient. The obtained concentration was 0.062% of monomers in number when the water vapor density is 7.5 g/m3. This concentration is in agreement with the published result obtained by way of another method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01013028
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    Paper (German National Licenses)
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