Prabhakar R. Pagilla Publication List
Prabhakar R. Pagilla


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Publication List

    Book Chapters

  1. P.R. Pagilla and N. Siraskar, ``Robust Decentralized Controllers for Large-Scale Interconnected Systems: Applications to Web Handling Systems,'' in L. Menini, L. Zaccarian, C.T. Abdallah (eds.), Current Trends in Nonlinear Systems and Control, Springer-Verlag, pp. 387-406, December 2005.
  2. P.R. Pagilla, ``Robotics in Machining Systems Control,'' in R. Horowitz, G. Chiu, B. Yao (eds.), Mechanical Systems Control, Springer-Verlag, 2006 (in press).
  3. Archival Journal Articles

  4. P.R. Pagilla and M. Tomizuka, ``Contact Transition Control of Nonlinear Mechanical Systems Subject to a Unilateral Constraint,'' ASME Journal of Dynamic Systems, Measurement and Control, vol. 119, pp. 749-759, December, 1997.
  5. P.R. Pagilla, E.O. King, L.H. Dreinhoefer, and S.S. Garimella, ``Robust Observer-Based Control of an Aluminum Strip Processing Line,'' IEEE Transactions on Industry Applications, vol. 36, no. 3, pp. 865-870, May, 2000.
  6. P.R. Pagilla, B. Yu, and K.L. Pau, ``Adaptive Control of Time-Varying Mechanical Systems: Analysis and Experiments,'' IEEE/ASME Transactions on Mechatronics, vol. 5, no. 4, pp. 410-418, December, 2000.
  7. P.R. Pagilla and B. Yu, ``Robotic Surface Finishing Processes: Modeling, Control, and Experiments,'' ASME Journal of Dynamic Systems, Measurement and Control, vol. 123, pp. 93-102, March, 2001.
  8. P.R. Pagilla and B. Yu, ``A Stable Transition Controller for Constrained Robots,'' IEEE/ASME Transactions on Mechatronics, vol. 6, no. 1, pp. 65-74, March, 2001.
  9. P.R. Pagilla, S.S. Garimella, L.H. Dreinhoefer, and E.O. King, ``Dynamics and Control of Accumulators in Continuous Strip Processing Lines,'' IEEE Transactions on Industry Applications, vol. 37, no. 3, pp. 934-940, May/June, 2001. Received the prize paper award from the IEEE IAS Metals Industry Committee.
  10. P.R. Pagilla and M. Tomizuka, ``An Adaptive Output Feedback Controller for Robot Arms: Stability and Experiments,'' Automatica, Journal of the International Federation of Automatic Control, vol. 37, no. 7, pp. 983-995, July 2001.
  11. P.R. Pagilla, ``Control of Contact Problem in Constrained Euler-Lagrange Systems,'' IEEE Transactions on Automatic Control, vol. 46, no. 10, pp. 1595-1599, October 2001.
  12. P.R. Pagilla and B. Yu, ``Mechatronic Design and Control of a Robot System Interacting with an External Environment,'' International Journal of Mechatronics, vol. 12, no. 6, pp. 791-811, 2002.
  13. P.R. Pagilla, R.V. Dwivedula, Y. Zhu, and L.P. Perera, ``Periodic Tension Disturbance Attenuation in Web Process Lines using Active Dancers,'' ASME Journal of Dynamic Systems, Measurement, and Control, vol. 125, pp. 361-371, September 2003.
  14. P.R. Pagilla and B. Yu, ``An Experimental Study of Planar Impact of a Robot Manipulator,'' IEEE/ASME Transactions on Mechatronics, vol. 9, no. 1, pp. 123-128, March 2004.
  15. P.R. Pagilla, I. Singh, and R.V. Dwivedula, ``A Study on Control of Accumulators in Web Processing Lines,'' ASME Journal of Dynamic Systems, Measurement, and Control, vol. 126, pp. 453-461, September 2004.
  16. P.R. Pagilla and Y. Zhu, ``Adaptive Control of Mechanical Systems with Time-Varying Parameters and Disturbances,'' ASME Journal of Dynamic Systems, Measurement, and Control, vol. 126, pp. 520-530, September 2004.
  17. Y. Zhu and P.R. Pagilla, ``A Note on the Necessary Conditions for the Algebraic Ricatti Equation,'' IMA Journal of Mathematical Control and Information, vol. 22, pp. 181-186, 2005.
  18. P.R. Pagilla and Y. Zhu, ``A Decentralized Output Feedback Controller for a Class of Large-Scale Interconnected Nonlinear Systems,'' ASME Journal of Dynamic Systems, Measurement and Control, vol. 127, pp. 167-172, March 2005.
  19. R.T. Ratliff and P.R. Pagilla, ``Design, Modeling, and Seek Control of a Voice-Coil Motor Actuator with Nonlinear Magnetic Bias,'' IEEE Transactions on Magnetics, vol. 41, no. 6, pp. 2180-2188, June 2005.
  20. R.V. Dwivedula, Y. Zhu, and P.R. Pagilla, ``Characteristics of Active and Passive Dancers: A Comparative Study,'' Control Engineering Practice, A Journal of the International Federation of Automatic Control, vol. 14, no. 4, pp. 409-423, 2006.
  21. B. Yu and P.R. Pagilla, ``Design and Implementation of a Robust Switching Control Scheme for a Class of Constrained Robot Tasks,'' International Journal of Systems Science, vol. 37, no. 5, pp. 303-321, April 2006.
  22. R.T. Ratliff and P.R. Pagilla, ``Commutational Ramp Load Control Using a Conventional Disc Drive Actuator,'' IEEE Transactions on Control Systems Technology, vol. 14, no. 3, pp. 436-442, May 2006.
  23. Y. Zhu and P.R. Pagilla, ``Adaptive Controller and Observer Design for a Class of Nonlinear Systems,'' ASME Journal of Dynamic Systems, Measurement and Control, vol. 128, no. 3, pp. 712-718, September 2006.
  24. Y. Zhu and P.R. Pagilla, ``Bounds on the Solution of the Time-Varying Linear Matrix Differential Equation $\dot{P}(t) = A^{H}(t) P(t) + P(t) A(t) + Q(t)$,'' IMA Journal of Mathematical Control and Information, vol. 23, pp. 269-277, September 2006.
  25. Y. Zhu and P.R. Pagilla, ``Adaptive Estimation of Time-Varying Parameters in Linearly Parameterized Systems,'' ASME Journal of Dynamic Systems, Measurement and Control, vol. 128, no. 3, pp. 691-695, September 2006.
  26. P.R. Pagilla, N. Siraskar and R.V. Dwivedula, ``Decentralized Control of Web Processing Lines,'' IEEE Transactions on Control Systems Technology, vol. 15, no. 1, pp. 106-117, January 2007.
  27. P.R. Pagilla and Y. Zhu, ``Decentralized Output Feedback Control of a Class of Large-Scale Interconnected Systems using Linear Matrix Inequalities (LMIs),'' IMA Journal of Mathematical Control and Information, vol. 24, pp. 57-69, March 2007.
  28. R.T. Ratliff and P.R. Pagilla, ``Design and Analysis of a Disc Drive Actuator for Commutational Ramp Loading,'' ASME Journal of Mechanical Design, vol. 129, pp. 346--360, March 2007.
  29. P.R. Pagilla, N. Siraskar and R.V. Dwivedula, ``A Decentralized Model Reference Adaptive Controller for Large-Scale Systems,'' IEEE/ASME Transactions on Mechatronics, vol. 12, no. 2, pp. 154-163, April 2007.
  30. A. Seshadri and P.R. Pagilla, ``Design and Development of a New Edge Sensor for Web Guiding,'' IEEE Sensors Journal , vol. 7, no. 5, pp. 698--706, May 2007.
  31. Y. Zou, P.R. Pagilla, and E.A. Misawa, ''Formation of a Group of Vehicles With Full Information Using Constraint Forces,'' ASME Journal of Dynamic Systems, Measurement, and Control , vol. 129, pp. 654--661, September 2007.
  32. R.T. Ratliff and P.R. Pagilla, ``Commutational Output Feedback Control for Disc Drive Ramp Loading,'' ASME Journal of Dynamic Systems, Measurement and Control, vol. 130, March 2008.
  33. A. Seshadri, P. Peddi-Ravi, and P.R. Pagilla, ``Fiber Optic Sensor for Web Velocity Measurement,'' IEEE Sensors Journal, vol. 8, no. 7, pp. 1099-1104, July 2008.
  34. Y. Zou, P.R. Pagilla, and R.T. Ratliff, ``Distributed Formation Flight Control Using Constraint Forces,'' AIAA Journal of Guidance, Dynamics, and Control, vol. 32, no. 1, pp. 112-120, Jan/Feb 2009.
  35. M. Cimino and P.R. Pagilla, ``A Design Technique for Multi-Rate Discrete-Time Systems,'' IEEE Transactions on Control Systems Technology, September 2008 (in press).
  36. Y. Zou and P.R. Pagilla, ``Distributed Constraint Force Approach to Coordination of Multiple Mobile Robots,'' Journal of Intelligent and Robotic Systems, January 2009 (in press).
  37. A. Seshadri and P.R. Pagilla, ``Web Flutter Measurement Sensor,'' IEEE Sensors Journal, February 2009 (in press).
  38. Refereed Conference and Symposia Proceedings (full paper reviewed)

  39. P.R. Pagilla and M. Tomizuka, ``Hybrid Force/Motion Control of Multiple Manipulators Carrying an Object,'' Proceedings of the American Control Conference, vol. 1, pp. 195-99, Baltimore, MD, June, 1994.
  40. P.R. Pagilla and M. Tomizuka, ``Adaptive Control of Two Robot Arms Carrying an Unknown Object,'' Proceedings of the IEEE Intl. Conf. on Robotics and Automation, vol. 1, pp. 597--602, Nagoya, Japan, May, 1995.
  41. P.R. Pagilla and M. Tomizuka, ``On Feedback Control of Nonlinear Mechanical Systems Subject to Holonomic/Nonholonomic Constraints,'' Proceedings of the Intl. Symp. on Intelligent Robotic Systems, Bangalore, India, November, 1995.
  42. P.R. Pagilla and M. Tomizuka, ``Control of Mechanical Systems Subject to Unilateral Constraints,'' Proc. of the IEEE Conf. on Decision and Control, vol. 4, pp. 4311-16, New Orleans, LA, December, 1995.
  43. P.R. Pagilla and M. Tomizuka, `` An Adaptive Output Feedback Controller for Robot Arms: Stability and Experiments,'' Proc. of the 13th IFAC World Congress, vol. 1, pp. 247--52, San Francisco, CA, July, 1996.
  44. P.R. Pagilla and M. Tomizuka, ``Contact Transition Control of Nonlinear Mechanical Systems Subject to Unilateral Constraints,'' Proc. of the ASME International Mechanical Engineering Congress and Exposition, pp. 843--50, Atlanta, GA, November, 1996.
  45. P.R. Pagilla, ``Control of Contact Problem in Constrained Euler-Lagrange Systems,'' Proceedings of the IEEE Conf. on Decision and Control, vol. 2, pp. 1249--50, San Diego, CA, December, 1997.
  46. P.R. Pagilla, K.L. Pau, and B. Yu, ``Adaptive Control of Time-Varying Mechanical Systems: Modeling, Controller Design and Experiments,'' Proceedings of the IEEE Intl. Conf. on Robotics and Automation, vol. 3, pp. 1818--23, Detroit, MI, May, 1999.
  47. P.R. Pagilla, ``Robust Decentralized Control of Large-Scale Interconnected Systems: General Interconnections,'' Proceedings of the American Control Conference, vol. 6, pp. 4527--31, San Diego, CA, June, 1999.
  48. P.R. Pagilla and B. Yu, ``Design and Experimental Evaluation of a Stable Transition Controller for Geometrically Constrained Robots,'' Proceedings of the IEEE Intl. Conf. on Robotics and Automation, San Francisco, CA, April 2000.
  49. P.R. Pagilla and B. Yu, ``Adaptive Control of a Robot Carrying a Time-Varying Payload,'' Proceedings of the IEEE Conf. on Control Applications, Anchorage, Alaska, October 2000.
  50. P.R. Pagilla and B. Yu, ``An Experimental Study of Planar Impact of a Robot Manipulator,'' Proc. of the IEEE Intl. Conf. on Robotics and Automation, Seoul, Korea, May 2001.
  51. P.R. Pagilla and B. Yu, ``Adaptive Control of Robotic Surface Finishing Processes,'' Proc. of the American Control Conference, Washington DC, June 2001.
  52. B. Yu and P.R. Pagilla, ``A Switching Control Scheme for Constrained Robot Tasks,'' Proc. of the IEEE Conference on Control Applications, Mexico City, Mexico, pp.~1105--1110, September, 2001. This paper received the best student paper award.
  53. Y. Zhu and P.R. Pagilla, ``Static and Dynamic Friction Compensation in Trajectory Tracking Control of Robots,'' Proc. of the IEEE International Conference on Robotics and Automation, Washington DC, May 2002, pp.~2644--2649.
  54. P.R. Pagilla and Y. Zhu, ``On the Adaptive Control of Mechanical Systems with Time-Varying Parameters and Disturbances,'' Proc. of the ASME Intl. Mechanical Engineering Congress and Exposition, New Orleans, LA, 2002.
  55. P.R. Pagilla and H. Zhong, ``Semi-Globally Stable Decentralized Control of Large-Scale Interconnected Systems,'' Proc. of the American Control Conference, Denver, CO, June 2003, pp.~5017--5022.
  56. P.R. Pagilla, I. Singh, and R.V. Dwivedula, ``A Study on Control of Accumulators in Web Processing Lines,'' Proc. of the American Control Conference, Denver, CO, June 2003, pp.~3684--3689.
  57. Y. Zhu and P.R. Pagilla, ``Adaptive Estimation of Time-Varying Parameters in Linear Systems,'' Proc. of the American Control Conference, Denver, CO, June 2003, pp.~4167--4172.
  58. Y. Zhu and P.R. Pagilla, ``Adaptive Controller and Observer Design for a Class of Nonlinear Systems,'' Proc. of the IEEE Conference on Decision and Control, pp.~1687--1692, Maui, HI, Dec. 2003.
  59. R.T. Ratliff and P.R. Pagilla, ``Design and Seek Control of a Disc Drive Actuator with Nonlinear Magnetic Bias,'' Proc. of the 2004 IEEE Intl. Conf. on Robotics and Automation, New Orleans, LA.
  60. P.R. Pagilla and Y. Zhu, ``Controller and Observer Design for Lipschitz Nonlinear Systems,'' Proc. of the 2004 American Control Conference, Boston, MA.
  61. P.R. Pagilla and Y. Zhu, ``Decentralized Output Feedback Controller for a Class of Large-Scale Interconnected Nonlinear Systems,'' Proc. of the 2004 American Control Conference, Boston, MA.
  62. R.V. Dwivedula and P.R. Pagilla, ``The effect of belt compliance on speed control,'' 11th IFAC Symposium on Automation in Mining, Mineral, and Metal Processing, Nancy, France, September 2004.
  63. Y. Zhu and P.R. Pagilla, ``Bounds on the Solution of the Time-Varying Linear Matrix Differential Equation $\dot{P}(t) = A^{H}(t) P(t) + P(t) A(t) + Q(t)$,'' Proc. of the 2004 IEEE Conference on Decision and Control, Paradise Island, Bahamas.
  64. R.T. Ratliff and P.R. Pagilla, ``Experimental Investigation of Seek Control of a Disc Drive with Nonlinear Magnetic Bias,'' Proc. of the American Control Conference, Portland, OR, 2005.
  65. R.T. Ratliff and P.R. Pagilla, ``Commutational Ramp Load Control Using a Conventional Disc Drive Actuator,'' Proc. of the 16th IFAC World Congress, Prague, Czech Republic, 2005.
  66. Y. Zhu and P. R. Pagilla, ``Decentralized Output Feedback Control of Large-Scale Interconnected Nonlinear Systems: The LMI Approach,'' Proc. of the 16th IFAC World Congress, Prague, Czech Republic, 2005.
  67. P.R. Pagilla and N. Siraskar, ``Decentralized Adaptive Control of Large-Scale Systems with Applications to Web Processing Lines,'' Proc. of the 16th IFAC World Congress, Prague, Czech Republic, 2005.
  68. P.R. Pagilla, N.B. Siraskar, and R.V. Dwivedula, ``Decentralized Control of Web Processing Lines,'' Proc. of the IEEE Conf. on Control Applications, Toronto, Canada, 2005.
  69. R.T. Ratliff and P.R. Pagilla, ``Output Feedback Seek Control of Disc Drives with Lipschitz Nonlinearities,'' Proc. of the IEEE Conf. on Control Applications, Toronto, Canada, 2005. This paper received the best student paper award.
  70. R.V. Dwivedula and P.R. Pagilla, ``Modeling of Web Slip on a Roller and its Effect on Web Tension Dynamics,'' ASME Intl. Mechanical Engineering Congress and Exposition, Orlando, FL, 2005.
  71. D. Knittel, A. Arbogast, M. Vedrines, and P.R. Pagilla, ``Decentralized Robust Control Strategies with Model Based Feedforward for Elastic Web Winding Systems,'' Proc. of the 2006 American Control Conference, Minneapolis, MN.
  72. R.T. Ratliff and P.R. Pagilla, ``Commutational Output Feedback Control for Disc Drive Ramp Loading,'' Proc. of the 2006 American Control Conference, Minneapolis, MN.
  73. D. Knittel, M. Vedrines, D. Henrion, and P.R. Pagilla, ``Robust $H_{\infty}$ Fixed Order Control Strategies for Large Scale Web Winding Systems, '' Proc. of the 2006 IEEE Conference on Control Applications, October 2006.
  74. Y. Zou and P.R. Pagilla, ``Aircraft Flight Control Using Nonlinear Adaptive Backstepping,'' Proc. of the ASME Intl. Mechanical Engineering Congress and Exposition, New York, NY, November 2006.
  75. Y. Zou, P.R. Pagilla, and E.A. Misawa, ``Rigid Formation of a Group of Vehicles Using Constraint Forces,'' Proc. of the ASME Intl. Mechanical Engineering Congress and Exposition, New York, NY, November 2006.
  76. M.G. Duvall, P.R. Pagilla, and E.A. Misawa, ``Modeling and Analysis of a Magnetized Spherical Particle via Field Manipulation,'' Proc. of the IEEE Conference on Decision and Control, San Diego, CA, December 2006.
  77. R.T. Ratliff and P.R. Pagilla, ``Uncontrollable Singularities in Nonlinear Systems,'' Proc. of the IEEE Conference on Decision and Control, San Diego, CA, December 2006.
  78. M.G. Duvall, P.R. Pagilla, E.A. Misawa, ``Control of a Magnetized Spherical Particle Utilizing a Minimum Coil Set,'' Proc. of the 2007 American Control Conference, New York, NY, July 2007.
  79. R.T. Ratliff and P.R. Pagilla, ``Fault Tolerant Robust Flight Control Using Surface Actuator Hinge Moments,'' Proc. of the 2008 American Control Conference, Seattle, WA, June 2008.
  80. Y. Zou, P.R. Pagilla, R.T. Ratliff, ``Distributed Formation Control of Multiple Aircraft Using Constraint Forces,'' Proc. of the 2008 American Control Conference, Seattle, WA, June 2008.
  81. M. Cimino and P.R. Pagilla, ``Design of Dynamic Controllers for Multi-Rate Digital Systems,'' Proc. of the 2008 IFAC World Congress, Seoul, South Korea, July 2008.
  82. Y. Zou and P.R. Pagilla, ``A Distributed Constraint Force Approach to Coordination of Multiple Mobile Robots,'' Proc. of the 2008 IFAC World Congress, Seoul, South Korea, July 2008.
  83. A. Seshadri and P.R. Pagilla, ``Optimal Control of Web Guides Using a New Fiber Optic Edge Sensor,'' Proc. of the 2008 ASME Dynamic Systems and Control Conference, Ann Arbor, MI, October 2008.
  84. M. Cimino and P.R. Pagilla, ``Parametrization of all Stabilizing Controllers for Multirate Systems,'' Proc. of the 2008 ASME Dynamic Systems and Control Conference, Ann Arbor, MI, October 2008.
  85. Y. Zou and P.R. Pagilla, ``Distributed Control and Collision Avoidance for Multiple Vehicles with Limited Sensing Using Constraint Forces,'' Proc. of the 2008 ASME Dynamic Systems and Control Conference, Ann Arbor, MI, October 2008.
  86. Non-refereed Conference and Symposia Proceedings (abstract reviewed)

  87. P.R. Pagilla, ``Analysis and Control of a Class of Large-Scale Interconnected Nonlinear Systems,'' Proceedings of the American Control Conference , vol. 6, pp. 3848-52, Philadelphia, PA, June, 1998.
  88. P.R. Pagilla and B. Yu, ``Adaptive Motion and Force Control of Robots Performing a Complete Task,'' Proceedings of the ASME Design Engineering Technical Conferences, Las Vegas, NV, September, 1999.
  89. P.R. Pagilla, E.O. King, L.H. Dreinhoefer, and S.S. Garimella, ``Robust Observer-Based Control of an Aluminum Strip Processing Line,'' Proceedings of the IEEE Industry Applications Society Conference, Phoenix, AZ, October, 1999.
  90. P.R. Pagilla and B. Yu, ``Mechatronic Design and Control of a Robot System Interacting with an External Environment,'' Proceedings of the 7th Mechatronics Forum International Conference, Atlanta, GA, September 2000.
  91. P.R. Pagilla, S.S. Garimella, L.H. Dreinhoefer, and E.O. King, ``Dynamics and Control of Accumulators in Continuous Strip Processing Lines,'' Proceedings of the IEEE Industry Applications Society Conference, Rome, Italy, October 2000.
  92. P.R. Pagilla, R.V. Dwivedula, Y.L. Zhu, S.S. Mandal, K. Hopcus, and J. Haque, ``Lateral Control of a Web using Estimated Velocity Feedback,'' Proc. of the Sixth Intl. Conference on Web Handling, Stillwater, OK, June 2001, pp. 513-530.
  93. P.R. Pagilla, L.P. Perera, and R.V. Dwivedula, ``The Role of Active Dancers in Tension Control of Webs,'' Proc. of the Sixth Intl. Conference on Web Handling, Stillwater, OK, June 2001, pp. 227--242.
  94. P.R. Pagilla, R.V. Dwivedula, and Y.L. Zhu ``A Comparative Study on Active and Passive Dancers used for Attenuation of Web Tension Disturbances,'' Proc. of the Seventh Intl. Conference on Web Handling, Stillwater, OK, June 2003.
  95. R.V. Dwivedula and P.R. Pagilla, ``Effect of Compliance and Backlash on the Output Speed of a Transmission System,'' Proc. of the Eighth Intl. Conference on Web Handling, Stillwater, OK, June 2005.
  96. P.R. Pagilla and D. Knittel, ``Advanced Methods for Web Longitudinal Control: Recent Algorithms and Future Directions,'' Proc. of the Eighth Intl. Conference on Web Handling, Stillwater, OK, June 2005.
  97. A. Seshadri, A. Abbaraju, and P.R. Pagilla, ``A Novel Edge Sensor for Web Guiding,'' Proc. of the 2006 SPIE Conf. on Sensors and Smart Structures for Civil, Mechanical, and Aerospace Systems , San Diego, CA.
  98. P.R. Pagilla, A. Seshadri, A. Abbaraju, and P. Peddi-Ravi, ``A New Laser Based Sensing System for Monitoring and Control of Webs,'' Proc. of the 2006 SPIE Conf. on Sensors and Smart Structures for Civil, Mechanical, and Aerospace Systems, San Diego, CA.
  99. D. Knittel, D. Henrion, P.R. Pagilla, M. Vedrines, ``Fixed-Order H_inf Decentralized Control With Model Based Feedforward For Elastic Web Winding Systems,'' Proc. of the 2006 IEEE Industry Applications Society Annual Conference, Chicago, IL, 2006.
  100. A. Seshadri and P.R.~Pagilla, ``A Fiber Optic Sensor for Web Edge Position Measurement,'' Proc. of the 2007 SPIE Conf. on Sensors and Smart Structures for Civil, Mechanical, and Aerospace Systems, San Diego, CA.
  101. P.R. Pagilla and D. Knittel, ``Design of Fixed Order Controllers for Web Longitudinal Control,'' Ninth Intl. Conference on Web Handling, Stillwater, OK, June 2007.
  102. P.R. Pagilla, K.N. Reid, and J. Newton, ``Modeling and Control of Laminated Webs,'' Ninth Intl. Conference on Web Handling, Stillwater, OK, June 2007.
  103. Patents

  104. R.T. Ratliff and P.R. Pagilla, Method And Apparatus For Adaptive Control Of a Disk Drive In The Presence Of Non-Linear Magnetic Bias, US Patent No. 7456595, November 2008.
  105. R.T. Ratliff and P.R. Pagilla, Closed-loop Control of a Commutation Ramp Load Maneuver for a Disc Drive Actuator, OSU invention disclosure No. 2005-15; provisional application filed in April 2006.
  106. P.R. Pagilla and A. Seshadri, A New Edge Sensor for Web Guiding, OSU invention disclosure filed in June 2006; provisional application filed in November 2006.

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