Publications

- Journal Papers Published or Accepted
- Refereed Conference Papers Published or Accepted

Journal Papers Published or Accepted

 

J55. Darshana, P., Wu, C.Q. and Annakkage, U. ( 2013 ) Power System Transient Stability Analysis via the Concept of Lyapunov Exponents, accepted by Electric Power Systems Research , acceptance date: June 21, 2013.

J54. Szturm , T., Marotta, J., Wu, C.Q. and Nayak, A. ( 2013 ) Technology-assisted and Motivational Program for a Blended Approach to prevent and Manage Balance, Gaze, Mobility and Cognitive Decline With Age, accepted by OA Systematic Reviews , acceptance date: May 28, 2013.

J53. Shafiullah, A. K. M. and Wu, C. Q. ( 2013 ) Generation and Validation of Loading Profiles for Highly Accelerated Durability Tests of Ground Vehicle Components, accepted by Engineering Failure Analysis, acceptance date: April 2, 2013, EFA-D-12-00184.

J52. Koop, D. and Wu Q. ( 2013 ) Passive Dynamic Biped Walking Part I: Development and Validation of an Advanced Model, accepted by ASME Computational and Nonlinear Dynamics, acceptance date: January 30, 2013 (CND-12-1219).

J51. Koop, D. and Wu Q. ( 2013 ) Passive Dynamic Biped Walking Part II: Stability Analysis of the Passive Dynamic Gait, accepted by ASME Computational and Nonlinear Dynamics , acceptance date: February 2, 2013 (CND-12-1220).

J50. Sadri, S. and Wu, Q. ( 2013 ) Stability Analysis of a Nonlinear Vehicle Model in Plane Motion Using the Concept of Lyapunov Exponents, Vehicel System Dynamics, 51 (6), 906-924.

J49. Zareinia, K. Sepehri, N. and Wu, Q. ( 2012 ) A Lyapunov Controller for Stable Haptic Manipulation of Hydraulic Actuators, International Journal of Robust and Nonlinear Control 22, 241-261.

J48. Giesbrecht, D., Wu, Q. and Sepehri, N. ( 2012 ) Design and Optimization of a One-Degree-of-Freedom Eight-Bar Leg Mechanism for a Walking Machine, CSME Transaction , 36 (4), 343-355.

J47. Alghooneh, M. and Wu, Q. (2012) A Systematic Gait-Planning Framework Negotiating Biomechanically Motivated Characteristics of a Five-Link Bipedal Robot, International Journal of Humanoid Robotics, 9 (4).

J46. Sun, Y. and Wu, Q. ( 2012 ) A radial-basis-function-network-based method of estimating Lyapunov exponents from a scalar time series for analyzing nonlinear systems stability, Nonlinear Dynamics 70 (2), 1689-1708.

J45. Sun, Y. and Wu, C. Q. ( 2012 ) Stability Analysis via the Concept of Lyapunov Exponents: A Case Study in Optimal Controlled Biped Standing, International Journal of Control, 85 (12), 1952-1966.

J44. O'Brien, S. , Luo, L., Wu, C. Q., Bohm, E., Petrak, M. and Brandt, J. ( 2012 ) Computational development of a polyethylene wear model for the articular and backside surfaces in modular total knee replacements, Tribology International , in press.

J43. Kouchaki, E., Wu, C. Q. and Sadigh, M. J. ( 2012 ) Effects of Constraints on Standing Balance Control of a Biped with Toe-Joints, International Journal of Humanoid Robotics, 9 (3).

J42. Yang, C ., Wu, Q. and Zhang P. ( 2012 ) Estimation of Lyapunov exponents from a time series for n-dimensional state space using nonlinear mapping, Nonlear Dynamics, 69 (4) 1493-1507 .

J41. O'Brien, S. , Luo, L., Wu, C. Q., Bohm, E., Petrak, M. and Brandt, J. ( 2011 ) Prediction of Backside Micromotion in Total Knee Replacements by Finite Element Simulation, Proceedings of the Institution of Mechanical Engineers, Part H, Journal of Engineering in Medicine 226, 235-245.

J40. Sun, Y., Wang, X., Wu, Q. and Sepehri, N. ( 2011 ) On stability analysis via Lyapunov exponents calculated based on Radial Basis Function networks, Internal Journal of Control 84 (8), 1326-1341

J39. Yang, C. and Wu Q. ( 2011 ) A Robust Method on Estimation of Lyapunov Exponents from a Noisy Time Series, Nonlinear Dynamics , 64, 279292 .

J38. Zareinia, K ., Sepehri, N. and Wu, Q. ( 2010 ) A Lyapunov Controller for Stable Haptic Manipulation of Hydraulic Actuators, International Journal of Robust and Nonlinear Control, to appear.

J37. Mu, X. and Wu, Q. ( 2010 ) On solutions to the planar multi-link robotic impact dynamics with rank-deficient jacobian matrix, accepted by International Journal of Applied Mechanics , 2 (3), 569584.

J36. Wu, Q. and Chen, J. (2010) Effects of Ramp Angle and Mass Distributions on Passive Dynamic Gait-An Experimental Study, The International Journal of Humanoid Robotics, 7 (1), 55-72.

J35. Yang, C. and Wu , Q. (2010) On Stability Analysis via Lyapunov Exponents Calculated from a Time Series Using Nonlinear Mapping - A Case Study, Nonlinear Dynamics , 59 (1), 239-257.

J34. Ghorbani, R. and Wu, Q. (2009) On improving bipedal walking energetics through adjusting the stiffness of elastic elements at the ankle joint, accepted by International Journal of Humanoid Robotics, 6 (1), 23 48.

J33. Sekhavat, P., Wu, Q. and Sepehri, N.(2009) Switching Contact Task Control in Hydraulic Actuators: Stability Analysis and Experimental Evaluation, International Journal of Robust and Nonlinear Control, 19 , 1896-1921.

J32. Ghorbani, R. and Wu, Q., (2009) Conceptual Design of The Adjustable Stiffness Artificial Tendons for Legged Robotics, accepted by Mechanism and Machine Theory, 44 , 140-161.

J31. Yang, C., Wu, Q. and Joyce, G., (2007) Effects of Constraints on Bipedal Balancing during Standing, International Journal of Humanoid Robotics, 4, (4), 753-775..

J30. Wu, Q. and Zeng, H., (2007) On Uniqueness of Filippov's Solutions for Non-Smooth Systems Having Multiple Discontinuity Surfaces with Applications to Control Engineering, CSME Transactions , 31 (2) .

J29. Reza Ghorbani and Q. Wu, (2007) Environmental-Interactive Robotic Systems: Compliant Actuation Approach, International Journal of Advanced Robotic Systems , 4 (1), 81-92.

J28. Reza Ghorbani and Q. Wu, (2007) Optimal Neural Network Stabilization of Bipedal Robots Using Genetic Algorithm, Engineering Applications of Artificial Intelligence 20 , 473-480.

J27. Niksefat, N., Sepehri, N. and Wu Q. (2007), Design and Experimental Evaluation of a QFT Contact Task Controller for Electro-Hydraulic Actuators, International Journal of Robust and Nonlinear Control 17 , 225-250.

J26. Mu, X. and Wu, Q., (2006) On Impact Dynamics and Contact Events for Biped Robots via Impact Effects, IEEE Transactions on Systems, Man and Cybernetics, Part B, 36 (6), 1364-1372.

J25. Yang, C. and Wu, Q. (2006) On stabilization of bipedal robots during disturbed standing using the concept of Lyapunov exponents, Robotica 24 , 621-624.

J24. Sekhavat, P, Sepehri, N. and Wu, Q. (2006) Impact control in hydraulic actuators with friction: theorey and experiments, IFAC Journal of Control Engineering Practice 14 (12), 1423-1433.

J23. Wu, Q., Sekhavat, P, Sepehri, N. and S. Peles (2005) On Design of Continuous Lyapunov's Feedback Control, Journal of Franklin Institute , Engineering and Applied Mathematics 342 , 6, 702-723.

J22. Sekhavat, P., Wu, Q. and Sepehri, N. (2005) Impact Control in Hydraulic Actuators, ASME Journal of Dynamic Systems, Measurement, and Control , 127 , 2, 197-205.

J21. Wu, Q. and Chan, C.Y. (2005) Design of Energy-Conservative Joint Profiles for a Planar Five-Link Bipedal System, ASME Journal of Dynamic systems, Measruements, and Control , 127 , 2, 192-196.

J20. Mu, X. and Wu, Q. (2004) Development of a complete dynamic model of a planar five-link biped and sliding mode control of its locomotion during the double support phase , International Journal of Control , 77 , 8, 789-799.

J19. Sekhavat, P., Sepehri, N., and Wu, Q. (2004) Calculation of Lyapunov exponents using nonstandard finite difference discretization scheme: a case study, Journal of Difference Equations and Applications , 10 , 4, 369-378.

J18. Wu, Q. and Sabet, N. (2004) An Experimental Study of Passive Dynamic Walking, Robotica , 22 , 251-262.

J17. Mu, X. and Wu, Q. (2003) Synthesis of A Complete Sagittal Gait Cycle for a Five-Link Biped Robot, Robotica , 21 , 581-587.

J16. Karpenko, M. and Wu, Q. (2003) Photoelastic Validation of a Theoretical Solution for an Edge Cracked Disk, Experimental Mechanics , 43, 410-419.

J15. Wu, Q., Sepehri, N. and He, S. (2002) Neural-based control and stability analysis of base-excited inverted pendulums, Journal of Intelligent and Fuzzy Systems , 12 , 119-131.

J14. Sepehri, N., Wu, Q. and He, S. (2002) Neural inverse modeling and control of a base-excited inverted pendulum, IFAC Journal of Intelligent Real-Time Automation , 15 , 261-272.

J13. Ma, B. and Wu, Q. (2002) Parametric study of repeatable gait of a 5-link biped, Robotica , 20 , 493-498.

J12. Wu, Q. and Swain R. (2002) A mathematical model of the stability control of human thorax and pelvis movements during walking, Computer Methods in Biomechanics and Biomedical Engineering , 5 , 67-74.

J11. Niksefat, N., Wu, Q. and Sepehri, N. (2001) Design of a Lyapunov Controller for an Electro-Hydraulic Actuator during Contact Task, ASME Journal of Dynamic Systems, Measurements and Control , 123 , 299-307.

J10. Wu, Q. and Sepehri, N. (2001) On Lyapunov's stability analysis of non-smooth systems with applications to control engineering, International Journal of Nonlinear Mechanics , 36 , 1153-1161.

J9. Cheng, C., Wu, Q. and A.B. Thornton-Trump, (2001) Decentralized robust controller design for uncertain large-scale systems with control delays, International Journal of Systems Science , 32 , 33-41.

J8. Wu, Q., Sepehri, N and He, S, (2000) On control of a base-excited inverted pendulum using neural networks, Journal of the Institute of Franklin : Engineering and Applied Mathematics , 337 , 267-286.

J7. Wu, Q., Onyshko, S., Sepehri, N. and Thornton-Trump, A.B., (1998) On Construction of smooth Lyapunov functions for non-smooth systems, International Journal of Control , 69 , 443-457.

J6. Wu, Q., Sepehri, N., Thornton-Trump, A.B. and Alexander, M., (1998) Stability and control of human trunk movement during walking, Computer Methods in Biomechanics and Biomedical Engineering , 1 , 247-259.

J5. Wu, Q., Thornton-Trump, A.B. and Sepehri, N., (1998) Lyapunov stability control of inverted pendulums with general base point motion, International Journal of Non-Linear Mechanics , 33 , 801-818.

J4. Wu, Q., Sepehri, N. and Thornton-Trump, A.B., (1997) Lyapunov feedback control of base-excited inverted pendulums, International Journal of Science and Technology , 3 , 21-32.

J3. Wu, Q. and Thornton-Trump, A.B., (1997) Stabilization of a base-excited inverted pendulum with two degrees of rotational freedom, Journal of the Institute of Franklin : Engineering and Applied Mathematics , 334B , 63-92.

J2. Wu, Q., Sepehri, N., Thornton-Trump, A.B. and Onyshko, S., (1995) An extended integral method to derive Lyapunov functions for nonlinear systems, International Journal of Control , 62 , 717-736.

J1. Vaughan, H. and Wu, Q. (1991) Stresses in a circular disc containing a radial crack, Quarterly Journal of Mechanics and Applied Mathematics , 44 , 413-428.

BOOK CHAPTERS

B2. Ghorbani, R. and Wu, Q. (2009) On Adjustable Stiffness Artificial Tendons in Bipedal Walking Energetics, invited by Climbing and Walking Robots , ISBN 978-953-7619-X-X.

B1. Abo-Shanab, R.F., Sepehri, N. and Wu, Q. (2005) Application of Nonstandard Finite Difference Schemes to the Simulation Studies of Robotic Systems, Advances in the Applications of Nonstandard Finite Difference Schemes , edited by R.E. Mickens, World Scientific, New Jersey.

Selected Refereed Conference Papers Published or Accepted

 

C89. Darshana P., Geeganage, J ., Annakkage, U. and Wu, C.Q., Investigation of the Applicability of Lyapunov Exponents for Transient Stability Assessment, IEEE Electrical Power and Energy Conference (EPEC) 2013, Halifax, Canada, August 21-23, 2013.

C88. Koop, D., Wu, C.Q., DEVELOPMENT OF AN ADVANCED MODEL OF PASSIVE DYNAMIC BIPED WALKING, accepted by 6th ASME Annual Dynamic Systems and Control Conference , October 21-23, 2013 . Stanford University, Munger Center, Palo Alto, CA.

C87. Leverick, G., Szturm, T. and Wu C.Q., Investigation of the suitability of utilizing permutation entropy to characterize gait dynamics, accepted by 6th ASME Annual Dynamic Systems and Control Conference , October 21-23, 2013 . Stanford University, Munger Center, Palo Alto, CA.

C86. Daronga, S. and Wu, Q. , Strategies for Non-linear System Identification in Base Excited Structure, accepted by ASME 2013 International Design Engineering Technical Conferences (IDETC) and Computers and Information in Engineering Conference (CIE) , Portland, OR, August 4-7, 2013 .

C85. Sun, Y. and Wu Q., Stability analysis of nonlinear systems via estimating radial-basis-function network-based Lyapunov exponents from a scalar time series, accepted by 2012 ASME Dynamic Systems and Control Conference , Oct. 17-19, 2012Ft. Lauderdale, FL, USA.

C84. Sadri, S. and Wu, C. Q., Lateral Stability Analysis of On-road Vehicles Using Lyapunov's Direct method, 2012 IEEE Intelligent Vehicles Symposium , Alcalá de Henares, Spain, June 3-7, 2012.

C83. Sadri, S. and Wu, C. Q., Lateral Stability Analysis of On-road Vehicles Using the Concept of Lyapunov Exponents 2012 Intelligent Vehicles Symposium, Alcalá de Henares, Spain, June 3-7, 2012.

C82. Koop, D. and Wu, Q., Passive Dynamic Biped Walking: Walking Machine Design and Gait Measurement, CSME International Congress 2012 , Winnipeg, MB, June 4-6, 2012.

C81. O'Brien , S. , Luo , Y., Petrak , M., Bohm , E., Wu , Q. and Brandt , J., Finite Element Material Modeling of UHMWPE: Rigid Body Vs Deformable Body Modeling, CSME International Congress 2012 , Winnipeg, MB, June 4-6, 2012.

C80. Shafiullah . AKM and Wu , Q., Validation of Loading Profiles for Accelerated Durability Testing of Ground Vehicle Components, CSME International Congress 2012 , Winnipeg, MB, June 4-6, 2012.

C79. Koop , D. and Wu , Q., Modeling and Simulation of Passive Dynamic Walking, CSME International Congress 2012 , Winnipeg, MB, June 4-6, 2012.

C78.  Sadri , S and Wu , Q., Largest Lyapunov Exponent as a New Indicator to Investigate the Effects of Driving Conditions on the Vehicle Stability, Properties CSME International Congress 2012 , Winnipeg, MB, June 4-6, 2012.

C77.  Sadri , S and Wu , Q., Lateral Stability Analysis of On-road Vehicles Using Lyapunov's Direct Method, Properties CSME International Congress 2012 , Winnipeg, MB, June 4-6, 2012.

C76. Alghooneh , M. and Wu , Q., A Systematic FrameWork for the Gait Planning of a Five-Link Bipedal Robot, Properties CSME International Congress 2012 , Winnipeg, MB, June 4-6, 2012.

C75. O'Brien S, Brandt J-M, Luo Y and Wu C, Q. The Development of a Wear Model for the Prediction of Wear in Total Knee Replacements by Finite Element Simulation, Proceedings of SimOrtho , Rostock, Germany, 2011.

C74. O'Brien S, Brandt J-M, Luo Y and Wu C, Q. Wear Model Development for the Articular and Backside Surfaces of a Total Knee Replacement, Proceedings of Leeds-Lyon Symposium of Tribology , Lyon, France, 2011.

C73. Sun, Y. and Wu C. Q., Optimal Constrained Balancing Control of a Standing Biped, ASME 4th Annual Dynamic Systems and Control Conference , Arlington, VA, October 31-November 2, 2011.

C72. Xu, K., Wu, Y., and Wu, Q., Development of vibration loading profiles for accelerated durability tests of Ground Vehicles, ASME 4th Annual Dynamic Systems and Control Conference , Arlington, VA, October 31-November 2, 2011.

C71. Kazi, R ., Koop, D . and Wu, C.Q. Experimental Study on Passive Dynamic Bipedal Walking: Comparing Test Platforms and Effects of Parameter Changes on Gait Patterns, ASME 4th Annual Dynamic Systems and Control Conference ,Arlington, VA, October 31-November 2, 2011.

C70. Sun, Y., Wang, X., Wu, Q. and Sepehri, N., Calculation of Lyapunov Exponents Using Radial Basis Function Networks for Stability Analysis of Nonlinear Control Systems, American Control Conference 2011 , June 29-July 2, 2011.

C69. Sun, Y . and Wu, Q. Optimal balancing control of a standing biped subject to constraints, IASTED International Conference on Control and Applications , Vancouver, BC, June 1-3, 2011.

C68. Xu, K., Wu, Y., Cull S. and Wu, Q., Development of a mathematical method for automatic field-test-event identification with the application to accelerated durability testing of Ground Vehicles, CANCAM2011 , Vancouver, BC, June 5-7, 2011.

C67. Shafiullah, A. K. M., Cull, S., Ojo, O. and Wu, Q., Stress analysis of the failure of a HVAC module, CANCAM2011 , Vancouver, BC, June 5-7, 2011. • 

C66. Koop, D. and Wu, Q. Experimental study of passive dynamic bipedal walking: comparing test platforms, CANCAM2011 , Vancouver, BC, June 5-7, 2011.

C65. Rushdi K., Koop D. and Wu Q., Experimental Study on passive dynamic bipedal walking: effects of parameter change on gait pattern, CANCAM2011 , Vancouver, BC, June 5-7, 2011.

C64. O'Brien, S., Luo, Y., Brandt, J. and Wu, Q., Wear analysis of total knee replacement by finite element simulation, CANCAM2011 , Vancouver, BC, June 5-7, 2011.

C63. Zarei-nia, K ., Sepehri, N. and Wu, Q., Lyapunov Controller for stable haptic manipulation of hydraulic actuators, Bath/ASME Symposium on Fluid Power & Motion Control (FPMC 2010) , Bath, UK, September 15-17, 2010.

C62. Yang,C. and Wu, Q., Stability Analysis of a Balancing controlled Biped during Standing via Lyapunov Exponents Calculated from a Noisy Time Series, 16th US National Congress of Theoretical and Applied Mechanics, State College, Pennsylvania, USA, June 27 - July 2, 2010.

C61. Hunt, T , Swain, R , Wu, Q. and Sepehri, N, Evaluation of Applied Torques from Splints Used in Dynamic Forearm Rotational Splinting, to appear in Proceedings of The Canadian Society for Mechanical Engineering Forum 2010 , Victoria, BC, Canada, June 7-9, 2010.

C60. Yang,C. and Wu, Q. , Stability Analysis of Bipedal Standing via Lyapunov Exponents Calculated from a Time Series Using Nonlinear Mapping, CANCAM 2009, Halifax, NS, Canada, May 31- June 4, 2009.

C59. Wang, X., Yang, C. and Wu, Q ., Optimal Stabilization of Biped Standing with Neural Network, CANCAM 2009, Halifax, NS, Canada, May 31-June 4, 2009.

C58. Yang, C. and Wu, Q ., Generation of an Accelerated Testing Driven Profile for a Shaker, CANCAM 2009, Halifax, NS, Canada, May 31-June 4, 2009.

C57. Yang, C. and Wu, Q., On the Effects of Constraints on Bipedal Balance Control During Standing, 2007 American Control Conference , New York City, USA, July 11-13, 2007.

C56. Mu, X. And Wu, Q., On Modeling Multi-Rigid-Link Robotics Simultaneous Collisions with Frictional Impulses , IMECE2006-15186, ASME International Mechanical Engineering Congress and Exposition , Novr. 2006, Chicago, Illinois , USA.

C55. Ghorbani, R. Wu, Q., Saturation Effects on Performance and Stability of a Compliant Actuator Force Control System, IMECE2006-15016, ASME International Mechanical Engineering Congress and Exposition , Novr. 2006, Chicago, Illinois , USA.

C54. Ghorbani, R. Wu, Q. and Wang, G., Optimal Neural Network Stabilization of Bipedal Robots Using Genetic Algorithm, submitted to The 3rd International Conference on Cybernetics and Information Technologies, Systems and Applications: CITSA 2006   July 20-23, 2006 Orlando, Florida, USA .

C53. Wu, Q. and Sabet, N., An Experimental Study of Passive Dynamic Walking, submitted to The 3rd International Conference on Cybernetics and Information Technologies, Systems and Applications: CITSA 2006   July 20-23, 2006 Orlando, Florida, USA., acceptance date: April, 2006.

C52. Monghhadam, R. Y., Wang, G.G., Yannou, B. and Wu, Q., Applying constraint programming for design space deduction in metamodling based optimization, 16th CIRP International Design Seminar , Paper No: 10081, Kananaskis, Alberta, Canada, July 16-19, 2006, acceted date: March, 2006.

C51. Yang, C. and Wu, Q., Effects of constraints on bipedal balance control, Proceedings of the 2006 American Control Conference , 2516-2521, Minneapolis, MN, June, 2006.

C50. Yang, C. and Wu, Q., On Stabilization of Bipedal Robots during Disturbed Standing using the Concept of Lyapunov Exponents, Proceedings of the 2006 American Control Conference , 2516-2521, Minneapolis, MN, June, 2006.

C49. Ghorbani, R., Wu, Q., Closed Loop Control of an Intentionally Adjustable Compliant Actuator , Proceedings of the 2006 American Control Conference , 3235-3240, Minneapolis, MN, June, 2006.

C48. Yang, C. and Wu, Q., Effects of Gravity and Friction Constraints on Bipedal Balance Control, Proceedings of IEEE Conference on Control and Applications , 1093-1098, Toronto, Canada, August, 2005.

C47. Mu, X. and Wu, Q., On Impact Dynamics of the Planar Multi-Link Robotic Systems Contact with the Environment, Proceedings of IEEE Conference on Control and Applications , 1182-1187, Toronto, Canada, August, 2005.

C46. Mu, X. and Wu, Q. and Sepehri, N., Impact Effects on a Tip-Over Situation of a Mobile Platform Mounted with Manipulators, Proceedings of IEEE Conference on Control and Applications , 1546-1551, Toronto, Canada, August, 2005.

C45. Sekhavat, P, Sepehri, N. and Wu, Q., Contact task stability analysis of hydraulic actuaters using the concept of Lyapunov exponents, Proceedings of the IEEE International Conference on Robotics and Automation , 552-558, Barcelona, Spain, April 18-22, 2005.

C44. Wu, Q., Zeng, H. and Sepehri, N., On Uniqueness of Filippov's Solutions for Non-Smooth Systems Having Multiple Discontinuity Surfaces with Applications to Control Engineering, Proceedings of the 2004 ASME International Mechanical Engineering Congress and Exposition, Symposium on Advances in Robot Dynamics and Control , Paper No. IMECE2004-59824, Anaheim, USA, November 13-19, 2004.

C43. Zeng, H., Wu, Q. and Sepehri, N., On control of a 2-link non-fixed-base inverted pendulum with guaranteed uniqueness, Proceedings of the 2004 ASME International Mechanical Engineering Congress and Exposition, Symposium on Advances in Robot Dynamics and Control , Paper No. IMECE2004-61239, Anaheim, USA, November 13-19, 2004.

C42. Mu, X. and Wu, Q., Parametric Study of the Contact Event for Biped Robots Via Impact Effects, Proceedings of the 2004 ASME International Mechanical Engineering Congress and Exposition, Symposium on Advances in Robot Dynamics and Control , Paper No. IMECE2004-60217, Anaheim, USA, November 13-19, 2004.

C41. Sekhavat, P., Wu, Q. and Sepehri, N., Asymptotic Force Control of Hydraulic Actuators with Friction: Theory and Experiments, Proceedings of the 2004 ASME International Mechanical Engineering Congress and Exposition, Symposium on Advances in Robot Dynamics and Control, Paper # 61272, Anaheim, USA, November 13-19, 2004.

C40. Sekhavat, P., Wu, Q. and Sepehri, N., Asymptotic Impact Control of Hydraulic Actuators with Friction: Theory and Experiments, Proceedings of the 2004 ASME International Mechanical Engineering Congress and Exposition, Symposium on Advances in Robot Dynamics and Control , Paper No. IMECE2004-61275, Anaheim, USA, November 13-19, 2004.

C39. Mu, X. and Wu, Q., Dynamic Modeling and Sliding Mode Control of a Five-Link Biped uring the Double Support Phase, Proceeding of the 2004 American Control Conference , Paper no. ThA19.6, 2609-2614, Boston, Massachusetts, June 30-July 2, 2004.

C38. Mu, X. and Wu, Q., Sagittal Gait Synthesis for a Five-Link Biped Robot, Proceeding of the 2004 American Control Conference , Paper no. FrA03.5, 4004-4009, Boston, Massachusetts, June 30-July 2, 2004.

C37. Sekhavat, P., Wu, Q. and Sepehri, N., Impact Control in Hydraulic Actuators with Friction: Theory and Experiments, Proceeding of the 2004 American Control Conference , Paper no. FrA16.1, 4432-4437, Boston, Massachusetts, June 30-July 2, 2004.

C36. Sekhavat, P., Wu, Q. and Sepehri, N., Lyapunov-based Friction Compensation for Accurate Positioning of a Hydraulic Actuator, Proceeding of the 2004 American Control Conference , Paper no. WeA 13.2, 418-423, Boston, Massachusetts, June 30-July 2, 2004.

C35. Robbins K. L. and Wu Q., Development of a Computer Tool for Anthropometric Analyses, Proceedings of The International Conference on Mathematics and Engineering Techniques in Medicine and Biological Sciences (METMBS'03), 347-353, Las Vegas, CA, June, 2003.

C34. Mu, X. and Wu, Q., A Complete Dynamic Model of Five-Link Bipedal Walking, 2003 American Control Conference , Paper no. ACC03-ASME0082.

C33. Ho, D., Wu, Q., Stockton, L. and Williams, P., Quantitative photoelastic analysis of the stress distribution around four types of endodontic posts, 32 nd American Association of Dental research/27 th Canadian Association of Dental Research Annual Research Meeting , March, 2003, San Antonio Texas.

C32. Sekhavat, P., Sepehri, N., and Wu, Q. (2002) Contact Task Stability Analysis via Lyapunov Exponents, Proceedings of The 17th IEEE International Symposium on Intelligent Control (ISIC'02) , 148-152.

C31. Abo-Shanab, R.F., Sepehri, N. and Wu, Q., On dynamic modeling of robot manipulators: the method of virtual links, 2002 ASME Design Engineering Technical Conferences , Paper No. DETC2002/MECH-34225, September, 2002, Montreal, Canada.

C30. Wu, Q. and Swain, R., A stability control model for human thorax and pelvis movements during walking, Proceedings of WCB2002 , 2002, Calgary, Canada.

C29. Lusk, J. and Wu Q., Center of pressure migration during prolonged unconstrained sitting, Proceedings of WCB2002 , 2002, Calgary, Canada.

C28. Ma, B. and Wu, Q., Study of Step Period and Step Length for Planar Five-Link Bipedal Locomotion Systems, Proceedings of World Automation Congress 2002, Paper No. ISORA020 (6 pages), 2002.

C27. Wu, Q. and Chan, C.Y.A., Design of energy efficient joint profiles for a planar five-link biped robot, Proceedings of 2001 IEEE International Symposium on Computational Intelligence in Robotics and Automation ( IEEE CIRA 2001 ), 35-40, 2001.

C26. Wu, Q., Sekhavat, P., Peles, S., Abo-Shanab, R.F., and Sepehri, N., An Improved Design Procedure of Lyapunov Feedback Control, Proceedings of 2001 IEEE International Symposium on Computational Intelligence in Robotics and Automation ( IEEE CIRA 2001 ), 486-491, 2001.

C25. Wu, Q. and Sepehri, N, Neural Inverse Modeling and Control of a Base-Excited Inverted Pendulum, Proceedings of 2001 IEEE International Symposium on Computational Intelligence in Robotics and Automation ( IEEE CIRA 2001 ), 402-407, 2001.

C24. Wu, Q. and Chan, C.Y., (2001) Design of joint profiles for a planar five-link biped, Proceedings of IEEE Systems, Man, And Cybernetics 2001 .

C23. Wu, Q. and Chan, C.Y.A. (2001) Robust Sliding Mode Control of a 5-link Biped Robot, Proceedings of t he 5th World Multi-Conference on Systemics, Cybernetics And Informatics, SCI 2001 .

C22. Abo-shanab, R. F., Wu, Q. and Sepehri, N. On Derivation of Dynamic Equations for Interconnected Rigid Bodies, Proceedings of American Control Conference , Washington, D.C., 2565-2569, 2001.

C21. Karpenko, M. and Wu, Q. Experimental Validation of a Theoretical Solution for a Cracked Disk, Proceedings of the SEM Annual Conference on Experimental and Applied Mechanics , Portland, Oregon, 426-429, 2001.

C20. Cheng, C., Wu, Q. and Thornton-Trump, A.B. Robust analysis and synthesis for delayed systems with rank-1 type uncertainties, Proceedings of 2000 IEEE Intenational Conference on System, Man, and Cybernetics , Nashville, Tennesseem, 3496-3501, 2000.

C19. Cheng, C., Wu, Q., C. Y. Chan and Thornton-Trump, A.B. Development of a decentralized robust controller for uncertain large-scale systems with control delays, Proceedings of 2000 IEEE Intenational Conference on System, Man, and Cybernetics , Nashville, Tennesseem, 2465-2470, 2000.

C18. Wu, Q. and Swain, R., On Lyapunov's stability control of two-link base-excited inverted pendulums with applications to human locomotion, Proceedings of 2000 IEEE Intenational Conference on System, Man, and Cybernetics , Nashville, Tennesseem 3330-3335, 2000.

C17. Wu, Q. and He, S. Neural-based control and stability of an inverted pendulum subject to base excitations, Proceedings of 2000 IEEE Intenational Conference on System, Man, and Cybernetics , Nashville, Tennesseem, 2661-2666, 2000.

C16. Niksefat, N., Wu, Q. and Sepehri, N., Stable control of an electro-hydraulic actuator during contact tasks: theory and experiments, Proceedings of American Control Conference , Chicago, Illinois, 4114-4118, 2000.

C15. Wu, Q. and Payandeh, S. Toward smooth analysis of robotic contact tasks problem, Proceedings of American Control Conference , TA17-6, 1960-1964, 1999.

C14. Wu, Q. Lyapunov's stability control of constrained inverted pendulums, Proceedings of American Control Conference , WA11-1, 293-297, 1999.

C13. Wu, Q. and Sepehri, N. Contributions to the Construction of Non-smooth Lyapunov functions for Non-smooth Systems, Proceedings of the 14 th IFAC , Paper No. E-2C-15-4, 333-338, Beijing, China, June, 1999.

C12. He, S., Wu, Q. and Sepehri, N., Control of Base-Excited Inverted Pendulums Using a Neural Inverse Modeling Approach, Proceedings of the 14 th IFAC , Paper No. J-3E-02-3, 409-414, Beijing, China, June, 1999.

C10. Wu, Q., Onyshko, S. and Thornton-Trump, A.B., On Construction of smooth Lyapunov functions for non-smooth systems, Proceeding of World Automation Congress , Alaska, ISIAC 016.1-016.6, 1998.

C9. Wu, Q., Sepehri, N. and Thornton-Trump, A.B., Lyapunov stability of an inverted pendulum model, Proceeding of World Automation Congress , ISIAC 017.1-017.5, 1998.

C8. Tataryn, P.D., Wu, Q., Sepehri, N. and Strong D., Experimental evaluation and contribution to the theory of a nonlinear robust friction compensator, Proceeding of World Automation Congress , ISORA 143.1-143.8, 1998.

C7. Wu, Q., Thornton-Trump, A.B. and Alexander, M., Stability and control of human tank movement during walking, Fourth International Symposium on 3-D Analysis of Human Movement, Granoble, France, 1996.

C6. Zweep, J., Remillard, N., Wu, Q., Thornton-Trump, A.B. and Alexander, M., Motion analysis of human trunk for pathological gait, Proceedings of 15th Southern Biomedical Engineering Conference, 736-737, 1995.

C5. Pagtakhan, P.J.T., LaRiviere, M.D., Wu, Q. and Thornton-Trump, A.B., Development of an on-line technique for estimating the joint forces and torques in human locomotion, Proceedings of 13th Southern Biomedical Engineering Conference, 51-54, 1994.

C4. Wu, Q., Thornton-Trump, A.B., Onyshko, S. and Sepehri, N., Human upper body control and stability during normal walking, Proceedings of 13th Southern Biomedical Engineering Conference , 47-50, 1994.

C3. Wu, Q., Thornton-Trump, A.B. Sepehri, N. and Onyshko, S. Studies of control and stability of a class of inverted pendulums , Intelligent automation and soft computing , 69-74, 1994.

C2. Wu. Q. and Thornton-Trump, A.B. A generalized state space method for modeling human lower limbs, Proceedings of 14th Canadian Congress of Applied Mechanics , 737-738, 1993.

C1. Vaughan, H. and Wu, Q. Fracture toughness using circular discs, Proceedings of 13th Canadian Congress of Applied Mechanics , 344-345, 1991.