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Träfflista för sökning "WFRF:(Grönlund Rasmus) ;spr:eng;pers:(Weibring Petter)"

Sökning: WFRF:(Grönlund Rasmus) > Engelska > Weibring Petter

  • Resultat 1-7 av 7
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  • Bengtsson, Magnus, et al. (författare)
  • Lidar fluorescence measurements of algal growth on electrical insulators
  • 2003
  • Ingår i: 2003 Conference on Lasers and Electro-Optics Europe (CLEO/Europe 2003) (IEEE Cat. No.03TH8666). - IEEE--Institute of Electrical and Electronics Engineers Inc.. - 0-7803-7734-6 ; s. 473-473
  • Konferensbidrag (refereegranskat)abstract
    • Fluorescence measurements using lidar techniques have been shown to be useful for monitoring of algal growth on e.g. historical monuments. In this experiment similar measurements were performed on electrical insulators to examine the correlation between algal growth and the quality of the insulator, a factor of importance in the high-voltage grid management
  • Dernfalk, Andreas, 1975-, et al. (författare)
  • Laser-induced fluorescence spectroscopy for detection of biological contamination on composite insulators
  • 2003
  • Ingår i: In Proc. 13th International Symposium on High Voltage Engineering, Delft, Netherlands.
  • Konferensbidrag (refereegranskat)abstract
    • A new technique for remote detection of biological contamination on high-voltage outdoor insulators has been investigated. The technique, which is based on laser-induced fluorescence (LIF) spectroscopy, has been applied to study surfaces of real silicon rubber insulators from a distance of approximately 60 m. Measurements were performed outdoors on a number of clean, as well as, biologically contaminated insulators. Several types of biological contamination were included, as five of the studied insulators had become covered when installed in Sweden, and another three had been contaminated by fungal growth in laboratory. Fluorescence spectra obtained from the surfaces of the described insulators are presented and the applicability of the technique is discussed and compared with photographic methods.
  • Grönlund, Rasmus, et al. (författare)
  • Elemental mercury emissions from chlor-alkali plants measured by lidar techniques
  • 2005
  • Ingår i: Atmospheric Environment. - Elsevier. - 1352-2310. ; 39:39, s. 7474-7480
  • Tidskriftsartikel (refereegranskat)abstract
    • Differential absorption lidar (DIAL) techniques have been utilized to measure elemental gaseous mercury fluxes from mercury cell chlor-alkali (MCCA) plants as a part of the European Union funded European mercury emissions from chlor-alkali plants (EMECAP) project. Three plants have been selected as study objects and a total of six measurement campaigns have been performed, one intercalibration campaign and five flux evaluation campaigns, in both winter and summer. The measurements were carried out using the Swedish optical parametric oscillator-(OPO) based mobile lidar system developed at Lund Institute of Technology. The study shows large differences in the mercury emissions measured in winter or summer and at the different plants. The average values for the campaigns ranged from 6 g h(-1) in the winter campaign at the Swedish plant to 54 g h(-1) in the summer campaign at the Italian plant.
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