Suche nach „[P.] [Schmidt]“ hat 3 Publikationen gefunden
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    P. Atkinson, P. Schmidt, Peter Hofmann, C. Zimmer, R. Marschallinger, E. Trinka, J. Sellner, M. Mühlau

    A MS-lesion pattern discrimination plot based on geostatistics

    Brain and Behaviour, vol. 6, no. 3


    Elektrotechnik und Medientechnik


    P. Schmidt, Matthias Wuschek, C. Bornkessel, M. Schubert

    Determination of the General Public Exposure Around GSM and UMTS Base Stations

    Radiation Protection Dosimetry, vol. 124, no. 1, pp. 40-47


    Abstract anzeigen

    This paper summarises two studies, in which measurement and calculation methods to determine the exposure of the general public around GSM and UMTS base stations have been developed and applied to different scenarios. The electromagnetic field variations around the stations in space and time are accounted for by appropriate maximisation techniques. Measurements show a bandwidth of exposures from 0.01% to more than 10% of field strength exposure limits. The distance to the station is not a main influencing factor, whereas the orientation to the main lobe and the sight conditions greatly influence exposure. Several commercially available numerical simulation tools were tested for their applicability on exposure forecast. In line-of-sight scenarios, all programs are able to predict the exposure accurately, whereas in non-line-of-sight situations, free space models overestimate the real exposure by some orders of magnitude.

    Elektrotechnik und Medientechnik


    D. Breitfelder, Reinhard Schlosser, H. Schmidt, C. Albrecht, P. Massek, H.-W. Neumüller, P. Kummeth

    Development and test of a 100 kVA superconducting transformer operated at 77 K

    Superconductor Science and Technology, vol. 13, no. 5, pp. 503-505


    DOI: 10.1088/0953-2048/13/5/314

    Abstract anzeigen

    High-temperature superconducting (HTS) transformers are very promising candidates for application in electrical power engineering. Their main advantages are reduced size, weight, better efficiency and reduced potential fire and environmental hazards. We have designed, constructed and tested a 100 kVA HTS power transformer operated at 77 K. The nominal primary and secondary currents (voltages) are 18 A (5.6 kV) and 92 A (1.1 kV), respectively. No-load tests, short-circuit tests and load tests proved repeatedly that the transformer has the rated capacity. HTS winding losses of 20.6 W and iron losses of 403 W were measured.