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Babak Hejrati

Babak grew up in Hamedan, Iran. He earned a B.S. degree in Mechanical Engineering from Iran University of Science and Technology, followed by an M.S. degree in Mechanical Engineering from K. N. Toosi University of Technology, both located in Tehran, Iran. For his M.S. thesis, he worked in the "Actuator Laboratory" on impedance control of a pneumatic actuator using fast switching on/off valves, utilized MATLAB Real-Time Workshop. Babak earned his Ph.D. in mechanical engineering at the University of Utah in 2016. Babak was co-advised by Dr. John Hollerbach in the School of Computing. His dissertation work involved exploration of the Treadport immersive virtual-reality environment as a gait-rehabilitation device, and the generation of arm-swing during gait rehabilitation. Babak's interest lie in mechatronics and control of dynamic systems at the intersection of theory and experiments. He is particularly interested in rehabilitation and assistive-device applications.

After defending his dissertation, Babak joined Conor Walsh's lab at Harvard University as a postdoctoral researcher.

In 2017, Babak joined the faculty of the Department of Mechanical Engineering at the University of Maine.

CV

Contact

email: babak.hejrati "AT" maine.edu

Journal Publications

B. Hejrati, O. R. Barnes, M. Yazdani, D. Usevitch, K. K. Leang, A. S. Merryweather, and J. J. Abbott, "UWEAR: An Underactuated Wearable Arm-swing Rehabilitator for Gait Training," in preparation.

B. Hejrati, A. S. Merryweather, and J. J. Abbott, "Generating Arm-swing Trajectories in Real-time Using a Data-driven Model for Gait Rehabilitation with Self-selected Speed", IEEE Trans. Neural Systems and Rehabilitation Engineering, 26(1):115-124, 2018.
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B. Hejrati, S. Chesebrough, K. B. Foreman, J. J. Abbott, and A. S. Merryweather, "Comprehensive Quantitative Investigation of Arm Swing During Walking at Various Speed and Surface Slope Conditions," Human Movement Science, 49:104-115, 2016.
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B. Hejrati, K. L. Crandall, J. M. Hollerbach, and J. J. Abbott, "Kinesthetic Force Feedback and Belt Control for the Treadport Locomotion Interface," IEEE Trans. Haptics, 8(2):176-187, 2015.
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B. Hejrati and F. Najafi, "Accurate pressure control of a pneumatic actuator with a novel pulse width modulation–sliding mode controller using a fast switching On/Off valve", Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 227: 230-242, 2012.
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Conference Publications

O. R. Barnes, B. Hejrati, and J. J. Abbott, "An Underactuated Wearable Arm-swing Rehabilitator for Gait Training," IEEE Int. Conf. Robotics and Automation, pp. 4998-5003, 2015.
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B. Hejrati, D. Hull, J. Black, J. J. Abbott, and J. M. Hollerbach, "Investigation of the Treadport for Gait Rehabilitation of Spinal Cord Injury," Int. Conf. IEEE Engineering in Medicine and Biology Society, pp. 4553-4558, 2012.
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F. Najafi and B. Hejrati, “Impedance Control of a Pneumatic Actuator Using Fast Switching On/Off Solenoid Valves for Tasks Containing Contact”, 17th Annual (International) Conference on Mechanical Engineering-ISME2009, 2009.

F. Najafi and B. Hejrati, “Position-Based Impedance Control of a Pneumatic Actuator Using On/Off Solenoid Valves for Physiotherapy Use”, Accepted in 8th IEEE International Conference on BioInformatics and BioEngineering (BIBE) 2008.