Research Catalog

  • Signal processing methodologies for an acoustic fetal heart rate monitor [microform] : final report for the period January 1, 1988 to September 30, 1991 / by Robert A. Pretlow III and John W. Stoughton; principal investigator.

    • Text
    • Norfolk, Va. : Old Dominion University Research Foundation ; [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1992]
    • 1992
  • Method and apparatus to characterize ultrasonically reflective contrast agents [microform] / inventor, Robert A. Pretlow, III.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration, 1993]
    • 1993

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