Flemming Rasmussen

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Three new methods to limit teeter excursions for a teetering two bladed downwind turbine are presented. Both methods are based on cyclic pitch through the pitch servo system. The first method is based on a PI-control of the measured teeter angle and the second is based on the measured teeter angle velocity. Third method is a combination of the two. The(More)
  • F Rasmussen
  • 1994
STUDY OBJECTIVE The probability of recurrence of acute otitis media during the preschool years was investigated. SETTING All children born in a semirural Swedish municipality were followed up from birth to their 7th birthday. DESIGN Information about visits to physicians for acute otitis media was collected retrospectively at all primary health care(More)
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