Timo Heiskanen

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A pilot experiment was carried out to define a method for oestrus detection for grouphoused sows based on sows' acceleration measurements. Acceleration data was measured for five sows, in three dimensions, four times per second during twenty days. The oestrus detection method is based on hourly averages of acceleration measurements, modeled using a(More)
Earlier studies conducted at 400 and 110 kV substations in Finland have shown that the occupational exposure to electric fields can exceed the action levels (ALs) set by Directive 2013/35/EU. This is a case study investigating the level of occupational exposure experienced by workers at 220 kV substations in order to determine if the actions levels are(More)
Various guidelines for the protection of human beings against possible adverse effects resulting from exposure to electromagnetic fields (EMFs) have been published with a view towards continual improvement; therefore, decreasing exposure is an important research area. The aim of this study was to investigate the possibility of decreasing electric field(More)
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