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Träfflista för sökning "WFRF:(Richard C.) srt2:(1985-1989)"

Sökning: WFRF:(Richard C.) > (1985-1989)

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  • Ranstam, Jonas, et al. (författare)
  • Oral-Contraceptive Use and the Risk of Breast Cancer
  • 1987
  • Ingår i: New England Journal of Medicine. - 0028-4793. ; 316:3, s. 162-164
  • Tidskriftsartikel (refereegranskat)abstract
    • To the Editor: The study on oral-contraceptive use and the risk of breast cancer from the Centers for Disease Control (CDC) and the National Institute of Child Health and Human Development (Aug. 14 issue)1 seems to be reassuring for oral-contraceptive users. But, as stated in the editorial by Shapiro in the same issue,2 there are some weak points that need further elucidation. We have found a highly increased risk of breast cancer among young (teenage) oral-contraceptive users in southern Sweden.3 From incidence figures for Sweden, an increase in premenopausal breast cancer can be seen to have started in about 1975,…
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  • Wittenmark, Björn, et al. (författare)
  • Adaptive Decoupling of Multivariable Systems
  • 1987
  • Ingår i: International Journal of Control. - : Informa UK Limited. - 0020-7179 .- 1366-5820. ; 46:6, s. 1992-2009
  • Tidskriftsartikel (refereegranskat)abstract
    • For many industrial processes, it is of interest to design a decoupling precompensator. The precompensator makes it possible to design controllers based on single-input-single-output models of the process. A model of the process must be known to design the precompensator. This paper shows how the precompensator can be designed adaptively using input-output measurements. The precompensator is first designed for the case when the process is known. The adaptive precompensator is then constructed using the certainty equivalence principle. The convergence properties and the implementation of the adaptive decoupler are discussed. It is shown that the adaptive scheme will converge provided the system is persistently excited and that a suitable model structure is used in the estimation.
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