Affiliation: | 1. Bechtel Marine Propulsion Corporation, Pittsburgh, Pennsylvania, USA;2. Iam Robotics, Pittsburgh, Pennsylvania, USA;3. Department of Mechanical Engineering and Materials Science, 636 Benedum Hall, University of Pittsburgh, Pittsburgh, Pennsylvania, USA;4. Department of Physical Medicine and Rehabilitation Science, University of Pittsburgh, Pittsburgh, Pennsylvania, USA;5. Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA |