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  • K. D. Do
  • 2008
—A constructive method is presented to design cooperative controllers that force a group of unicycle-type mobile robots with limited sensing ranges to perform desired formation tracking and guarantee no collisions between the robots. Physical dimensions and dynamics of the robots are also considered in the control design. Smooth and times differential bump(More)
PURPOSE To determine the nature and frequency of impairments and related underlying conditions of medical students with physical and sensory disabilities (PSDs), and to assess medical schools' use of relevant publications in setting admission criteria and developing appropriate accommodations. METHOD A 25-item survey addressed schools' experiences with(More)
  • K. D. Do
  • 2007
A constructive method is presented to design a global robust and adaptive output feedback controller for dynamic positioning of surface ships under environmental disturbances. Measurements of the ship's velocities are not required for feedback. The ship's parameters are not required to be known. An adaptive observer is first designed to estimate the ship's(More)