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  • 1
    Electronic Resource
    Electronic Resource
    Einfluß von Anlaßbehandlungen auf Restwiderstand und Magnetfeldabhängigkeit des elektrischen Widerstandes von Niob bei 4,2 K (1974)
    Springer
    Applied physics 3 (1974), S. 217-221 
    Details
    ISSN: 1432-0630
    Keywords: Niobium ; Residual resistivity ; Transition to superconductivity ; Superconducting surface layers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Measurements of the residual resistivity of Nb are usually carried out in longitudinal magnetic fields 〉H c3≈4.7 kOe. After annealing of Nb wires in helium or vacuum of 5·10−5 Torr a shift of the transition to normal conductivity towards higher fields (up to 9.3 kOe) was observed. This increase of the critical field is most likely caused by changes in the surface of the samples due to the annealing treatments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00884500
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    European vestibular experiments on the Spacelab-1 mission: 3. Caloric nystagmus in microgravity (1986)
    Springer
    Experimental brain research 64 (1986), S. 255-263 
    Details
    ISSN: 1432-1106
    Keywords: Caloric stimulation ; Microgravity ; Nystagmus ; Bárány ; Spacelab 1 ; Orbital flight
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Response to caloric stimulation was examined in two subjects in the weightless environment of orbital flight. Using air insufflation, a binaural temperature stimulus profile was performed twice on each subject during flight. In all but one test, which was carried out on the first mission day, a caloric nystagmus was registered. This zero-g nystagmus was similar to ground-based pre and postflight responses with regard to its intensity, its temporal correlation with the stimulus profile (nystagmus was always directed towards the warmer ear) and the subjective sensations reported by the tested subjects. These findings demonstrate that mechanisms other than thermoconvection are involved in the elicitation of the caloric nystagmus response. At each stage of the temperature stimulus profile, linear acceleratory stimulation was presented in the form of oscillations in the X-axis. Some differences were found between one-g and zero-g conditions in the resultant modification of the nystagmus response.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00237741
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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