Publications

Referred Publications

[6] I. B. Wijayasinghe, M. N. Saadatzi, S. Peetha, D. O. Popa, and S. Cremer, “Adaptive Interface for Robot Teleoperation using a Genetic Algorithm,” in 2018 IEEE 14th International Conference on Automation Science and Engineering (CASE), 2018, pp. 50-56: IEEE.
[7] I. B. Wijayasinghe, M. N. Saadatzi, S. Abubakar, and D. O. Popa, “A Study on Optimal Placement of Accelerometers for Pose Estimation of a Robot Arm,” in 2018 IEEE International Conference on Robotics and Automation (ICRA), 2018, pp. 1444-1451: IEEE.
[8] M. N. Saadatzi, S. K. Das, I. B. Wijayasinghe, D. O. Popa, and J. R. Baptist, “Precision Grasp Control with a Pneumatic Gripper and a Novel Fingertip Force Sensor,” in 2018 IEEE 14th International Conference on Automation Science and Engineering (CASE), 2018, pp. 1454-1459: IEEE.
[9] S. K. Das, I. Wijayasighe, M. N. Saadatzi, and D. O. Popa, “Whole Body Human-Robot Collision Detection Using Base-sensor Neuroadaptive Interaction,” in 2018 IEEE 14th International Conference on Automation Science and Engineering (CASE), 2018, pp. 278-283: IEEE.
[10] A. V. Dalal et al., “Implementation of Object Fetching Task and Human Subject Tests Using an Assistive Robot,” in ASME 2018 Dynamic Systems and Control Conference, 2018, pp. V001T07A011-V001T07A011: American Society of Mechanical Engineers.

[11] R. Zhang, Z. Yang, D. Wei, and D. O. Popa, “Design and fabrication of an articulated four axes microrobot arm,” in Smart Biomedical and Physiological Sensor Technology XIV, 2017, vol. 10216, p. 102160C: International Society for Optics and Photonics.
[12] O. Yetkin et al., “Systems, apparatuses and methods for controlling prosthetic devices by gestures and other modalities,” ed: US Patent App. 15/488,500, 2017.
[13] I. B. Wijayasinghe, J. D. Sanford, S. Abubakar, M. N. Saadatzi, S. K. Das, and D. O. Popa, “Optimal accelerometer placement on a robot arm for pose estimation,” in Smart Biomedical and Physiological Sensor Technology XIV, 2017, vol. 10216, p. 102160B: International Society for Optics and Photonics.
[14] I. B. Wijayasinghe, S. Peetha, S. Abubakar, M. N. Saadatzi, S. Cremer, and D. O. Popa, “Experimental setup for evaluating an adaptive user interface for teleoperation control,” in Smart Biomedical and Physiological Sensor Technology XIV, 2017, vol. 10216, p. 102160E: International Society for Optics and Photonics.
[15] J. Sanford, R. Patterson, D. O. J. J. o. R. Popa, and A. T. Engineering, “Concurrent surface electromyography and force myography classification during times of prosthetic socket shift and user fatigue,” vol. 4, p. 2055668317708731, 2017.

[16] M. N. Saadatzi, Z. Yang, J. R. Baptist, R. R. Sahasrabuddhe, I. B. Wijayasinghe, and D. O. Popa, “Parametric investigation of scalable tactile sensors,” in Smart Biomedical and Physiological Sensor Technology XIV, 2017, vol. 10216, p. 102160A: International Society for Optics and Photonics.
[17] M. N. Saadatzi, J. R. Baptist, I. B. Wijayasinghe, and D. O. Popa, “Characterization of large-area pressure sensitive robot skin,” in Smart Biomedical and Physiological Sensor Technology XIV, 2017, vol. 10216, p. 102160G: International Society for Optics and Photonics.
[18] D. Popa, C. Dobre, and F. Pop, “Energy reduction platform based on occupant behavior pattern detection in enhanced living environments,” in 2017 IFIP/IEEE Symposium on Integrated Network and Service Management (IM), 2017, pp. 1174-1177: IEEE.
[19] M. Moosaei, S. K. Das, D. O. Popa, and L. D. Riek, “Using facially expressive robots to calibrate clinical pain perception,” in Proceedings of the 2017 ACM/IEEE International Conference on Human-Robot Interaction, 2017, pp. 32-41: ACM.
[20] H. Modares, I. Ranatunga, B. AlQaudi, F. L. Lewis, and D. O. Popa, “Intelligent human–robot interaction systems using reinforcement learning and neural networks,” in Trends in control and decision-making for human–robot collaboration systems: Springer, Cham, 2017, pp. 153-176.

[21] M. C. Miller and K. J. I. A. Sullivan de Estrada, “Introduction: India’s rise at 70,” vol. 93, no. 1, pp. 1-6, 2017.
[22] H. L. Miller, N. Bugnariu, R. Patterson, I. Wijayasinghe, and D. O. Popa, “Development of a novel visuomotor integration paradigm by integrating a virtual environment with mobile eye-tracking and motion-capture systems,” in 2017 International Conference on Virtual Rehabilitation, ICVR 2017, 2017, p. 8007481: Institute of Electrical and Electronics Engineers Inc.
[23] S. K. Das, A. Sahu, and D. O. Popa, “Mobile app for human-interaction with sitter robots,” in Smart Biomedical and Physiological Sensor Technology XIV, 2017, vol. 10216, p. 102160D: International Society for Optics and Photonics.
[24] J. R. Baptist, R. Zhang, D. Wei, M. N. Saadatzi, and D. O. Popa, “Fabrication of strain gauge based sensors for tactile skins,” in Smart Biomedical and Physiological Sensor Technology XIV, 2017, vol. 10216, p. 102160F: International Society for Optics and Photonics.
[25] O. Yetkin et al., “An extremely lightweight fingernail worn prosthetic interface device,” in Sensors for Next-Generation Robotics III, 2016, vol. 9859, p. 98590J: International Society for Optics and Photonics.

[26] I. B. Wijayasinghe, I. Ranatunga, N. Balakrishnan, N. Bugnariu, and D. O. J. I. J. o. S. R. Popa, “Human–robot gesture analysis for objective assessment of autism spectrum disorder,” vol. 8, no. 5, pp. 695-707, 2016.
[27] I. B. Wijayasinghe, H. L. Miller, S. K. Das, N. L. Bugnariu, and D. O. Popa, “Human-like object tracking and gaze estimation with PKD android,” in Sensors for Next-Generation Robotics III, 2016, vol. 9859, p. 985906: International Society for Optics and Photonics.
[28] F. Stancu, D. Popa, L.-M. Groza, and F. Pop, “Queuing-based processing platform for service delivery in big data environments,” in International Conference on Exploring Services Science, 2016, pp. 497-508: Springer, Cham.
[29] I. Ranatunga, F. L. Lewis, D. O. Popa, and S. M. J. I. T. o. C. S. T. Tousif, “Adaptive admittance control for human–robot interaction using model reference design and adaptive inverse filtering,” vol. 25, no. 1, pp. 278-285, 2016.
[30] D. Popa and M. B. Wijesundara, “Sensors for Next-Generation Robotics III,” in Sensors for Next-Generation Robotics III, 2016, vol. 9859.

[31] F. Mirza, R. R. Sahasrabuddhe, J. R. Baptist, M. B. Wijesundara, W. H. Lee, and D. O. Popa, “Piezoresistive pressure sensor array for robotic skin,” in Sensors for Next-Generation Robotics III, 2016, vol. 9859, p. 98590K: International Society for Optics and Photonics.
[32] S. K. Das, J. R. Baptist, R. Sahasrabuddhe, W. H. Lee, and D. O. Popa, “Package analysis of 3D-printed piezoresistive strain gauge sensors,” in Sensors for Next-Generation Robotics III, 2016, vol. 9859, p. 985905: International Society for Optics and Photonics.
[33] S. Cremer, I. Ranatunga, S. K. Das, I. B. Wijayasinghe, and D. O. Popa, “Neuroadaptive calibration of tactile sensors for robot skin,” in 2016 IEEE International Conference on Automation Science and Engineering (CASE), 2016, pp. 1079-1085: IEEE.
[34] S. Cremer, F. Mirza, Y. Tuladhar, R. Alonzo, A. Hingeley, and D. O. Popa, “Investigation of human-robot interface performance in household environments,” in Sensors for Next-Generation Robotics III, 2016, vol. 9859, p. 985904: International Society for Optics and Photonics.
[35] S. Cremer, L. Mastromoro, and D. O. Popa, “On the performance of the Baxter research robot,” in 2016 IEEE International Symposium on Assembly and Manufacturing (ISAM), 2016, pp. 106-111: IEEE.

[36] C. Chilipirea, A. Ursache, D. O. Popa, and F. Pop, “Energy efficiency and robustness for IoT: building a smart home security system,” in 2016 IEEE 12th international conference on intelligent computer communication and processing (ICCP), 2016, pp. 43-48: IEEE.
[37] C. Chilipirea, A. Constantin, D. Popa, O. Crintea, and C. Dobre, “Cloud Elasticity: going beyond demand as user load,” in Proceedings of the Third International Workshop on Adaptive Resource Management and Scheduling for Cloud Computing, 2016, pp. 46-51: ACM.
[38] B. Alqaudi et al., “Model reference adaptive impedance control for physical human-robot interaction,” vol. 14, no. 1, pp. 68-82, 2016.
[39] O. Yetkin, K. Wallace, J. D. Sanford, and D. O. Popa, “Control of a powered prosthetic device via a pinch gesture interface,” in Next-Generation Robotics II; and Machine Intelligence and Bio-inspired Computation: Theory and Applications IX, 2015, vol. 9494, p. 94940I: International Society for Optics and Photonics.
[40] O. Yetkin, J. Sanford, F. Mirza, R. Karulkar, S. K. Das, and D. O. J. J. o. m. d. Popa, “Control of a Powered Prosthetic Hand Via a Tracked Glove,” vol. 9, no. 2, p. 020920, 2015.

[41] H. D. Vora and N. B. J. J. o. M. P. Dahotre, “Surface topography in three-dimensional laser machining of structural alumina,” vol. 19, pp. 49-58, 2015.
[42] N. A. Torres and D. O. Popa, “Cooperative control of multiple untethered magnetic microrobots using a single magnetic field source,” in 2015 IEEE International Conference on Automation Science and Engineering (CASE), 2015, pp. 1608-1613: IEEE.
[43] J. Sanford, C. Young, S. Cremer, D. Popa, N. Bugnariu, and R. J. P. M. Patterson, “Grip pressure and wrist joint angle measurement during activities of daily life,” vol. 3, pp. 1450-1457, 2015.
[44] J. Sanford, O. Yetkin, S. Cremer, and D. O. Popa, “A novel EMG-free prosthetic interface system using intra-socket force measurement and pinch gestures,” in Proceedings of the 8th ACM International Conference on PErvasive Technologies Related to Assistive Environments, 2015, p. 72: ACM.
[45] J. Sanford, R. Patterson, and D. Popa, “Surface EMG and intra-socket force measurement to control a prosthetic device,” in Next-Generation Robotics II; and Machine Intelligence and Bio-inspired Computation: Theory and Applications IX, 2015, vol. 9494, p. 94940C: International Society for Optics and Photonics.

[46] I. Ranatunga, S. Cremer, D. O. Popa, and F. L. Lewis, “Intent aware adaptive admittance control for physical human-robot interaction,” in 2015 IEEE International Conference on Robotics and Automation (ICRA), 2015, pp. 5635-5640: IEEE.
[47] I. Ranatunga, S. Cremer, F. L. Lewis, and D. O. Popa, “Neuroadaptive control for safe robots in human environments: A case study,” in 2015 IEEE International Conference on Automation Science and Engineering (CASE), 2015, pp. 322-327: IEEE.
[48] I. Ranatunga, N. Balakrishnan, I. Wijayasinghe, and D. O. Popa, “User adaptable tasks for differential teaching with applications to robotic autism therapy,” in Proceedings of the 8th ACM International Conference on PErvasive Technologies Related to Assistive Environments, 2015, p. 73: ACM.
[49] D. J. E. o. M. Popa and Nanofluidics, “Microactuators,” pp. 1829-1834, 2015.
[50] D. Popa, M. Blowers, and M. B. Wijesundara, “Next-Generation Robotics II; and Machine Intelligence and Bio-inspired Computation: Theory and Applications IX,” in Next-Generation Robotics II; and Machine Intelligence and Bio-inspired Computation: Theory and Applications IX, 2015, vol. 9494.

[51] C. Nothnagle, J. R. Baptist, J. Sanford, W. H. Lee, D. O. Popa, and M. B. Wijesundara, “EHD printing of PEDOT: PSS inks for fabricating pressure and strain sensor arrays on flexible substrates,” in Next-Generation Robotics II; and Machine Intelligence and Bio-inspired Computation: Theory and Applications IX, 2015, vol. 9494, p. 949403: International Society for Optics and Photonics.
[52] H. Modares, I. Ranatunga, F. L. Lewis, and D. O. J. I. t. o. c. Popa, “Optimized assistive human–robot interaction using reinforcement learning,” vol. 46, no. 3, pp. 655-667, 2015.
[53] A. N. Das, N. A. Torres, and D. O. Popa, “A Flexible Manufacturing System Architecture for On-Demand, Rate-Independent Production,” in ASME 2015 International Mechanical Engineering Congress and Exposition, 2015, pp. V02BT02A051-V02BT02A051: American Society of Mechanical Engineers.
[54] N. Bugnariu, D. Popa, C. Young, J. Sanford, and R. J. P. Patterson, “Kinematics and hand grip force patterns recorded during the task of opening a door,” vol. 101, p. e186, 2015.
[55] R. Alonzo, S. Cremer, F. Mirza, S. Gowda, L. Mastromoro, and D. O. Popa, “Multi-modal sensor and HMI integration with applications in personal robotics,” in Next-Generation Robotics II; and Machine Intelligence and Bio-inspired Computation: Theory and Applications IX, 2015, vol. 9494, p. 949409: International Society for Optics and Photonics.

[56] N. A. Torres, S. Ruggeri, and D. O. Popa, “Untethered microrobots actuated with focused permanent magnet field,” in ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, 2014, pp. V004T09A024-V004T09A024: American Society of Mechanical Engineers.
[57] K. R. Shook, A. Habib, W. H. Lee, and D. O. Popa, “Experimental testbed for robot skin characterization and interaction control,” in Next-Generation Robots and Systems, 2014, vol. 9116, p. 911606: International Society for Optics and Photonics.
[58] J. Sanford, C. Young, D. Popa, N. Bugnariu, and R. Patterson, “Grip pressure measurements during activities of daily life,” in Next-Generation Robots and Systems, 2014, vol. 9116, p. 91160H: International Society for Optics and Photonics.
[59] D. O. J. I. R. Popa and A. Magazine, “Robust and reliable microtechnology research and education through the mobile microrobotics challenge [competitions],” vol. 21, no. 1, pp. 8-12, 2014.
[60] D. O. Popa and M. B. Wijesundara, “Next-Generation Robots and Systems,” in Next-Generation Robots and Systems, 2014, vol. 9116.

[61] D. O. Popa, R. Murthy, and A. N. Das, “Microcrawler and Conveyor Robots, Controllers, Systems, and Methods,” ed: US Patent App. 13/866,513, 2014.
[62] D. O. Popa, R. Dewan, P. Pandojirao-Sunkojirao, and J.-C. Chiao, “Three-dimensional wafer stacking with vertical interconnects,” ed: US Patent 8,741,737, 2014.
[63] D. O. Popa, “News from the Robot Challenge at ICRA 2014,” ed: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC 445 HOES LANE, PISCATAWAY, NJ …, 2014.
[64] D. O. Popa, “Multiscale Robotics and Control: from Microns and Millimeters to Human Size,” 2014.
[65] G.-L. Mariottini and D. Popa, “Session details: Workshop on Robotics in Assistive Environments (RasEnv),” in Proceedings of the 7th International Conference on PErvasive Technologies Related to Assistive Environments, 2014: ACM.

[66] A. Habib, I. Ranatunga, K. Shook, and D. O. Popa, “SkinSim: A simulation environment for multimodal robot skin,” in 2014 IEEE International Conference on Automation Science and Engineering (CASE), 2014, pp. 1226-1231: IEEE.
[67] A. Habib, S. K. Das, I.-C. Bogdan, D. Hanson, and D. O. Popa, “Learning human-like facial expressions for android Phillip K. Dick,” in 2014 IEEE International Conference on Automation Science and Engineering (CASE), 2014, pp. 1159-1165: IEEE.
[68] K. Doelling, J. Shin, and D. O. Popa, “Service robotics for the home: a state of the art review,” in Proceedings of the 7th International Conference on PErvasive Technologies Related to Assistive Environments, 2014, p. 35: ACM.
[69] S. Cremer, I. Ranatunga, and D. O. Popa, “Robotic waiter with physical co-manipulation capabilities,” in 2014 IEEE International Conference on Automation Science and Engineering (CASE), 2014, pp. 1153-1158: IEEE.
[70] S. Cremer, M. Middleton, and D. O. Popa, “Implementation of advanced manipulation tasks on humanoids through kinesthetic teaching,” in Proceedings of the 7th International Conference on PErvasive Technologies Related to Assistive Environments, 2014, p. 46: ACM.

[71] G. M. Atmeh, I. Ranatunga, D. O. Popa, K. Subbarao, F. Lewis, and P. Rowe, “Implementation of an adaptive, model free, learning controller on the Atlas robot,” in 2014 American Control Conference, 2014, pp. 2887-2892: IEEE.
[72] G. M. Atmeh, I. Ranatunga, D. O. Popa, and K. Subbarao, “Indoor quadrotor state estimation using visual markers,” in Proceedings of the 7th International Conference on PErvasive Technologies Related to Assistive Environments, 2014, p. 34: ACM.
[73] J. Sanford, I. Ranatunga, and D. Popa, “Physical human-robot interaction with a mobile manipulator through pressure sensitive robot skin,” in Proceedings of the 6th International Conference on Pervasive Technologies Related to Assistive Environments, 2013, p. 60: ACM.
[74] I. Ranatunga et al., “Human-robot upper body gesture imitation analysis for autism spectrum disorders,” in International Conference on Social Robotics, 2013, pp. 218-228: Springer, Cham.
[75] D. O. Popa, N. Torres, and C. Lundberg, “Bringing MEMS technology Closer to Undergraduate Education via the Mobile Microrobotics Challenge,” 2013.

[76] D. O. Popa and R. Murthy, “Microrobots with large actuation volumes, and controllers, systems, and methods,” ed: US Patent 8,539,854, 2013.
[77] D. Popa, P. Nicolae, and M. Nicolae, “Analysis and simulation of line notching attenuation for a static excitation system in a power system,” in 2013 4th International Youth Conference on Energy (IYCE), 2013, pp. 1-6: IEEE.
[78] M. R. Pac, M. Rakotondrabe, S. Khadraoui, D. O. Popa, and P. Lutz, “Guaranteed manipulator precision via interval analysis of inverse kinematics,” in ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, 2013, pp. V001T09A017-V001T09A017: American Society of Mechanical Engineers.
[79] M. R. Pac, D. O. J. I. T. o. A. S. Popa, and Engineering, “Interval analysis of kinematic errors in serial manipulators using product of exponentials formula,” vol. 10, no. 3, pp. 525-535, 2013.
[80] C. McMurrough, I. Ranatunga, A. Papangelis, D. O. Popa, and F. Makedon, “A development and evaluation platform for non-tactile power wheelchair controls,” in Proceedings of the 6th International Conference on PErvasive Technologies Related to Assistive Environments, 2013, p. 4: ACM.

[81] P. Lutz, K. F. Böhringer, C. Clevy, D. O. Popa, Q. J. I. T. o. A. S. Zhou, and Engineering, “Guest Editorial Microassembly for Manufacturing at Small Scales,” vol. 10, no. 3, pp. 483-484, 2013.
[82] B. Komati, M. R. Pac, C. Clévy, D. O. Popa, and P. Lutz, “Explicit force control VS impedance control for micromanipulation,” in ASME-IDETC International Design Engineering Technical Conferences & Computers and Information in Engineering Conference., 2013, pp. 1-8.
[83] N. Bugnariu et al., “Human-robot interaction as a tool to evaluate and quantify motor imitation behavior in children with Autism Spectrum Disorders,” in 2013 International Conference on Virtual Rehabilitation (ICVR), 2013, pp. 57-62: IEEE.
[84] N. A. Torres, N. Clark, I. Ranatunga, and D. Popa, “Implementation of interactive arm playback behaviors of social robot Zeno for autism spectrum disorder therapy,” in Proceedings of the 5th International Conference on PErvasive Technologies Related to Assistive Environments, 2012, p. 21: ACM.
[85] I. Ranatunga, N. A. Torres, R. Patterson, N. Bugnariu, M. Stevenson, and D. O. Popa, “RoDiCA: a human-robot interaction system for treatment of childhood autism spectrum disorders,” in Proceedings of the 5th International Conference on PErvasive Technologies Related to Assistive Environments, 2012, p. 50: ACM.

[86] I. Ranatunga and D. O. Popa, “Collision-free trajectory generation on assistive robot Neptune,” in Proceedings of the 5th International Conference on PErvasive Technologies Related to Assistive Environments, 2012, p. 23: ACM.
[87] J. Rajruangrabin, I. Ranatunga, and D. O. Popa, “Adaptive interface mapping for intuitive teleoperation of multi-DOF robots,” in Conference Towards Autonomous Robotic Systems, 2012, pp. 49-60: Springer, Berlin, Heidelberg.
[88] M. R. Pac and D. O. Popa, “Interval analysis for robot precision evaluation,” in 2012 IEEE International Conference on Robotics and Automation, 2012, pp. 1087-1092: IEEE.
[89] M. F. Mysorewala, L. Cheded, D. O. J. E. J. o. W. C. Popa, and Networking, “A distributed multi-robot adaptive sampling scheme for the estimation of the spatial distribution in widespread fields,” vol. 2012, no. 1, p. 223, 2012.
[90] R. Murthy, H. E. Stephanou, D. O. J. I. T. o. A. S. Popa, and Engineering, “AFAM: An articulated four axes microrobot for nanoscale applications,” vol. 10, no. 2, pp. 276-284, 2012.

[91] I. Ranatunga, J. Rajruangrabin, D. O. Popa, and F. Makedon, “Enhanced therapeutic interactivity using social robot Zeno,” in Proceedings of the 4th International Conference on PErvasive Technologies Related to Assistive Environments, 2011, p. 57: ACM.
[92] J. Rajruangrabin, D. O. J. J. o. I. Popa, and R. Systems, “Robot head motion control with an emphasis on realism of neck–eye coordination during object tracking,” vol. 63, no. 2, pp. 163-190, 2011.
[93] M. R. Pac and D. O. Popa, “3-DOF untethered microrobot powered by a single laser beam based on differential thermal dynamics,” in 2011 IEEE International Conference on Robotics and Automation, 2011, pp. 121-127: IEEE.
[94] R. Murthy, A. N. Das, D. O. Popa, and H. E. J. A. R. Stephanou, “ARRIpede: An assembled die-scale microcrawler,” vol. 25, no. 8, pp. 965-990, 2011.
[95] U. Keller, “Vertical External Cavity Surface Emitting Lasers (VECSELs),” in Vertical External Cavity Surface Emitting Lasers (VECSELs), 2011, vol. 7919.

[96] P. Kanajar, I. Ranatunga, J. Rajruangrabin, D. O. Popa, and F. Makedon, “Neptune: assistive robotic system for children with motor impairments,” in Proceedings of the 4th International Conference on PErvasive Technologies Related to Assistive Environments, 2011, p. 59: ACM.
[97] A. N. Das and D. O. Popa, “Precision evaluation of modular multiscale robots for peg-in-hole microassembly tasks,” in 2011 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2011, pp. 1699-1704: IEEE.
[98] A. N. Das, R. Murthy, D. O. Popa, H. E. J. I. T. o. A. S. Stephanou, and Engineering, “A multiscale assembly and packaging system for manufacturing of complex micro-nano devices,” vol. 9, no. 1, pp. 160-170, 2011.
[99] J. Rajruangrabin and D. O. Popa, “Reinforcement learning of interface mapping for interactivity enhancement of robot control in assistive environments,” in Proceedings of the 3rd International Conference on PErvasive Technologies Related to Assistive Environments, 2010, p. 70: ACM.
[100] D. O. Popa, R. Murthy, and A. N. Das, “Microcrawler and conveyor robots, controllers, systems, and methods,” ed: US Patent App. 12/583,331, 2010.

[101] M. R. Pac and D. O. Popa, “Kinematic analysis of a five-legged mobile robot,” in ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, 2010, pp. 1427-1435: American Society of Mechanical Engineers.
[102] M. R. Pac and D. O. Popa, “Laser-powered sub-mm untethered microrobots,” in ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, 2010, pp. 863-872: American Society of Mechanical Engineers.
[103] M. F. Mysorewala, L. Cheded, M. S. Baig, and D. O. Popa, “A distributed multi-robot adaptive sampling scheme for complex field estimation,” in 2010 11th International Conference on Control Automation Robotics & Vision, 2010, pp. 2466-2471: IEEE.
[104] R. Murthy and D. O. Popa, “Wafer Scale Factories Using Assembled MEMS Robots,” in ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, 2010, pp. 851-856: American Society of Mechanical Engineers.
[105] R. Murthy and D. O. Popa, “Millimeter-scale microrobots for wafer-level factories,” in 2010 IEEE International Conference on Robotics and Automation, 2010, pp. 488-493: IEEE.

[106] S. Karajgikar et al., “Electro-thermal analysis of in-plane micropump,” vol. 33, no. 2, pp. 329-339, 2010.
[107] A. N. Das, D. O. Popa, and H. E. Stephanou, “Automated microassembly using precision based hybrid control,” in 2010 IEEE International Conference on Robotics and Automation, 2010, pp. 4106-4112: IEEE.
[108] A. N. Das and D. O. Popa, “Precision-based robot path planning for microassembly,” in 2010 IEEE International Conference on Automation Science and Engineering, 2010, pp. 527-532: IEEE.
[109] A. N. Das and D. O. Popa, “Precision-based robot kinematics design for microassembly applications,” in ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, 2010, pp. 857-862: American Society of Mechanical Engineers.
[110] G. C. Zimbru, W. H. Lee, and D. O. Popa, “Design and fabrication of microflap actuators for steering of micro air vehicles,” in Micro-and Nanotechnology Sensors, Systems, and Applications, 2009, vol. 7318, p. 73180R: International Society for Optics and Photonics.

[111] J. Rajruangrabin and D. O. J. I. P. V. Popa, “Control of Head-Eye Coordination of Conversational Robotic Actors,” vol. 42, no. 16, pp. 729-734, 2009.
[112] J. Rajruangrabin and D. O. Popa, “Realistic and robust head-eye coordination of conversational robot actors in human tracking applications,” in Proceedings of the 2nd International Conference on PErvasive Technologies Related to Assistive Environments, 2009, p. 1: ACM.
[113] K. Rabenorosoa, C. d. Clévy, P. Lutz, A. N. Das, R. Murthy, and D. Popa, “Precise motion control of a piezoelectric microgripper for microspectrometer assembly,” in ASME 2009 International Design Engineering Technical Conferences and Computers And Information In Engineering Conference, 2009, pp. 769-776: American Society of Mechanical Engineers.
[114] D. O. Popa, M. F. Mysorewala, and F. L. J. I. Lewis, “Deployment algorithms and indoor experimental vehicles for studying mobile wireless sensor networks,” vol. 6, no. 1, pp. 28-43, 2009.
[115] D. O. Popa, R. Murthy, A. N. J. I. T. o. A. S. Das, and Engineering, “${\rm M}^{3} $-Deterministic, Multiscale, Multirobot Platform for Microsystems Packaging: Design and Quasi-Static Precision Evaluation,” vol. 6, no. 2, pp. 345-361, 2009.

[116] M. F. Mysorewala, D. O. Popa, F. L. J. J. o. I. Lewis, and R. Systems, “Multi-scale adaptive sampling with mobile agents for mapping of forest fires,” vol. 54, no. 4, p. 535, 2009.
[117] R. Murthy and D. O. Popa, “Articulated MEMS Robot for Microfactory Applications,” in ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, 2009, pp. 777-783: American Society of Mechanical Engineers.
[118] R. Murthy and D. O. Popa, “A four degree of freedom microrobot with large work volume,” in 2009 IEEE International Conference on Robotics and Automation, 2009, pp. 1028-1033: IEEE.
[119] R. Murthy, A. N. Das, and D. O. J. I. P. V. Popa, “Nonholonomic Control for an Assembled Microcrawler,” vol. 42, no. 16, pp. 627-632, 2009.
[120] M. Mayyas, P. Zhang, W. H. Lee, D. Popa, J. J. J. o. M. Chiao, and Microengineering, “An active micro joining mechanism for 3D assembly,” vol. 19, no. 3, p. 035012, 2009.

[121] A. N. Das, D. O. Popa, J. Sin, and H. E. J. J. o. M.-N. M. Stephanou, “Precision alignment and assembly of a Fourier transform microspectrometer,” vol. 5, no. 1-2, p. 15, 2009.
[122] B. Borovic, F. L. Lewis, A. Q. Liu, and D. O. Popa, “Systems and methods for improved control of micro-electrical-mechanical system (MEMS) electrostatic actuator,” ed: US Patent 7,548,011, 2009.
[123] J. Rajruangrabin, P. Dang, D. O. Popa, F. L. Lewis, and H. E. Stephanou, “Simultaneous Visual Tracking and Pose Estimation with Applications to Robotic Actors,” in IPCV, 2008, pp. 497-503.
[124] D. O. Popa, H. Stephanou, and S. Priya, “Compliant Wireless Sensitive Elements and Devices,” ed: US Patent App. 11/754,890, 2008.
[125] D. O. Popa and F. L. Lewis, “Algorithms for robotic deployment of WSN in adaptive sampling applications,” in Wireless Sensor Networks and Applications: Springer, Boston, MA, 2008, pp. 35-64.

[126] D. Popa, “Non-Invasive Monitoring for Optimization of Therapeutic Drug Delivery by Biodegradable Fiber to Prostate Tumor,” DTIC Document2008.
[127] M. F. Mysorewala and D. O. J. f. Popa, “Multi-scale Adaptive Sampling with Mobile Robots for Mapping of Forest Fires,” vol. 4, no. 1, p. 1, 2008.
[128] M. F. Mysorewala and D. O. Popa, “Multi-scale adaptive sampling for mapping forest fires,” in 2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2008, pp. 3400-3407: IEEE.
[129] R. Murthy, A. N. Das, and D. O. Popa, “High yield assembly of compliant MEMS snap fasteners,” in ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, 2008, pp. 789-797: American Society of Mechanical Engineers.
[130] R. Murthy, A. N. Das, and D. O. Popa, “ARRIpede: an assembled micro crawler,” in 2008 8th IEEE Conference on Nanotechnology, 2008, pp. 833-836: IEEE.

[131] R. Murthy, A. Das, and D. O. Popa, “ARRIpede: A stick-slip micro crawler/conveyor robot constructed via 2 ½D MEMS assembly,” in 2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2008, pp. 34-40: IEEE.
[132] F. L. Lewis et al., “Design and Analysis of Discrete-Time Robust Kaiman Filters,” in Optimal and Robust Estimation: With an Introduction to Stochastic Control Theory, vol. 5no. 4): Prentice-Hall Englewood Cliffs, NJ, 2008, pp. 1-312.
[133] A. A. Fasoro, M. Mittal, D. O. Popa, D. A. Agonafer, and H. E. J. J. o. E. P. Stephanou, “Design for Reliability Applied to Packaging of a MOEMS Switch,” vol. 130, no. 4, p. 041003, 2008.
[134] A. N. Das, J. Sin, D. O. Popa, and H. E. Stephanou, “Design and manufacturing of a fourier transform microspectrometer,” in 2008 8th IEEE Conference on Nanotechnology, 2008, pp. 837-840: IEEE.
[135] A. N. Das, J. Sin, D. O. Popa, and H. E. Stephanou, “On the precision alignment and hybrid assembly aspects in manufacturing of a microspectrometer,” in 2008 IEEE International Conference on Automation Science and Engineering, 2008, pp. 959-966: IEEE.

[136] P. Dang, P. Ballal, F. L. Lewis, D. O. J. J. o. I. Popa, and R. Systems, “Real Time Relative and Absolute Dynamic Localization of Air–Ground Wireless Sensor Networks,” vol. 51, no. 2, pp. 235-257, 2008.
[137] B. Borovic, A.-Q. Liu, D. Popa, H. Cai, and F. L. J. I. T. o. I. E. Lewis, “Light-intensity-feedback-waveform generator based on MEMS variable optical attenuator,” vol. 55, no. 1, pp. 417-426, 2008.
[138] P. Zhang et al., “An active locking mechanism for assembling 3D micro structures,” in Smart Structures, Devices, and Systems III, 2007, vol. 6414, p. 641425: International Society for Optics and Photonics.
[139] Y. Xu, J. Ford, F. Makedon, D. Popa, H. Huang, and L. Shen, “In-home Localization for Home Care of Alzheimer’s Disease Patients using Wireless Sensor Networks,” in International workshop on Pervasive Technologies for the support of Alzheimer’s Disease and Related Disorders Sufferers, Thessaloniki, Greece, 2007, vol. 24.
[140] L. Xie, D. Popa, and F. L. Lewis, “Optimal and robust estimation: with an introduction to stochastic control theory,” 2007.

[141] K. Sreenath, F. L. Lewis, D. O. J. A. S. M. C. Popa, and C. Review, “Simultaneous adaptive localization of a wireless sensor network,” vol. 11, no. 2, pp. 14-28, 2007.
[142] K. Sreenath, “Adaptive sampling with mobile wsn,” 2007.
[143] R. P. Sawant, Q. Liang, D. O. Popa, and F. L. Lewis, “Experimental path loss models for wireless sensor networks,” in MILCOM 2007-IEEE Military Communications Conference, 2007, pp. 1-7: IEEE.
[144] J. Rajruangrabin and D. O. Popa, “Enhancement of manipulator interactivity through compliant skin and extended kalman filtering,” in 2007 IEEE International Conference on Automation Science and Engineering, 2007, pp. 1111-1116: IEEE.
[145] D. O. Popa, W. H. Lee, R. Murthy, A. N. Das, and H. E. Stephanou, “High yield automated mems assembly,” in 2007 IEEE International Conference on Automation Science and Engineering, 2007, pp. 1099-1104: IEEE.

[146] D. Popa, B. Kang, J.-Q. Lu, T. Hwang, E. Leonard, and H. Stephanou, “Wafer bonding compatible with bulk micro-machining,” ed: US Patent App. 10/548,134, 2007.
[147] R. Murthy, A. N. Das, D. Popa, and H. Stephanou, “M3: Multiscale, Deterministic and Reconfigurable Macro-Micro Assembly System for Packaging of MEMS,” in Proceedings 2007 IEEE International Conference on Robotics and Automation, 2007, pp. 668-673: IEEE.
[148] M. Mayyas, P. Zhang, W. H. Lee, P. Shiakolas, and D. Popa, “Design tradeoffs for electrothermal microgrippers,” in Proceedings 2007 IEEE International Conference on Robotics and Automation, 2007, pp. 907-912: IEEE.
[149] N. Lakhkar et al., “Process Development and Die Shear Testing in MOEMS Packaging,” in ASME 2007 InterPACK Conference collocated with the ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference, 2007, pp. 971-977: American Society of Mechanical Engineers.
[150] H. Huang, F. Makedon, D. Popa, H. Stephanou, J. Ford, and Y. Xu, “A Feature Extraction Metod for Multimedia data Analysis in Robot Wireless Sensor Networks,” in Eighth International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS’07), 2007, pp. 79-79: IEEE.

[151] A. A. Fasoro, P. Pandojirao-S, D. O. Popa, H. E. Stephanou, and D. A. Agonafer, “Die and Wafer-Level Hermetic Sealing for MEMS Applications,” in ASME 2007 InterPACK Conference collocated with the ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference, 2007, pp. 67-72: American Society of Mechanical Engineers.
[152] N. Dhaubanjar et al., “Investigation of vertical displacement thermal actuators,” in Smart Structures, Devices, and Systems III, 2007, vol. 6414, p. 641420: International Society for Optics and Photonics.
[153] N. Dhaubanjar, S. M. Rao, Y. Cai, D. Popa, M. Chiao, and J.-C. Chiao, “A cantilever-type electrostatic zipping actuator,” in Smart Structures, Devices, and Systems III, 2007, vol. 6414, p. 641421: International Society for Optics and Photonics.
[154] A. N. Das, P. Zhang, W. H. Lee, D. Popa, and H. Stephanou, “μ 3: Multiscale, deterministic micro-nano assembly system for construction of on-wafer microrobots,” in Proceedings 2007 IEEE International Conference on Robotics and Automation, 2007, pp. 461-466: IEEE.
[155] P. Dang, F. Lewis, and D. Popa, “Dynamic localization of air-ground wireless sensor networks,” in Advances in Unmanned Aerial Vehicles: Springer, Dordrecht, 2007, pp. 431-453.

[156] Y. Tadesse, S. Priya, H. Stephanou, D. Popa, and D. J. F. Hanson, “Piezoelectric actuation and sensing for facial robotics,” vol. 345, no. 1, pp. 13-25, 2006.
[157] K. Sreenath, F. L. Lewis, and D. O. Popa, “Localization of a wireless sensor network with unattended ground sensors and some mobile robots,” in 2006 IEEE Conference on Robotics, Automation and Mechatronics, 2006, pp. 1-8: IEEE.
[158] J. Sin, W. H. Lee, D. Popa, and H. E. Stephanou, “Assembled Fourier transform micro-spectrometer,” in Micromachining and Microfabrication Process Technology XI, 2006, vol. 6109, p. 610904: International Society for Optics and Photonics.
[159] S. Priya, D. Popa, and F. J. A.-P.-A. Lewis, “IMECE2006-14078 Energy Efficient Mobile Wireless Sensor Networks,” vol. 71, p. 491, 2006.
[160] S. Priya, D. Popa, and F. Lewis, “Energy efficient mobile wireless sensor networks,” in ASME 2006 International Mechanical Engineering Congress and Exposition, 2006, pp. 491-498: American Society of Mechanical Engineers.

[161] D. O. Popa, M. F. Mysorewala, and F. L. Lewis, “Adaptive sampling using non-linear EKF with mobile robotic wireless sensor nodes,” in 2006 9th International Conference on Control, Automation, Robotics and Vision, 2006, pp. 1-6: IEEE.
[162] D. O. Popa, M. F. Mysorewala, and F. L. Lewis, “EKF-based adaptive sampling with mobile robotic sensor nodes,” in 2006 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2006, pp. 2451-2456: IEEE.
[163] D. Popa, R. Murthy, M. Mittal, J. Sin, and H. Stephanou, “M3-modular multi-scale assembly system for MEMS packaging,” in 2006 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2006, pp. 3712-3717: IEEE.
[164] M. F. Mysorewala, D. O. Popa, V. Giordano, and F. L. Lewis, “Deployment algorithms and in-door experimental vehicles for studying mobile wireless sensor networks,” in Seventh ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing (SNPD’06), 2006, pp. 290-298: IEEE.
[165] R. Murthy, A. Das, and D. Popa, “Multiscale robotics framework for mems assembly,” in 2006 9th International Conference on Control, Automation, Robotics and Vision, 2006, pp. 1-6: IEEE.

[166] M. Mayyas, P. Shiakolas, W. H. Lee, D. Popa, and H. Stephanou, “Static and dynamic modeling of thermal microgripper,” in 2006 14th Mediterranean Conference on Control and Automation, 2006, pp. 1-6: IEEE.
[167] B. B. Laundry, G. Montemayor, D. O. Popa, M. K. Taylor, and J. T. Wen, “Crane control apparatus and method,” ed: US Patent 7,028,856, 2006.
[168] A. Kole, J. Sin, W. H. Lee, D. Popa, D. Agonafer, and H. Stephanou, “Design of polymer tube embedded in-plane micropump,” in Thermal and Thermomechanical Proceedings 10th Intersociety Conference on Phenomena in Electronics Systems, 2006. ITHERM 2006., 2006, pp. 6 pp.-1329: IEEE.
[169] A. A. Fasoro et al., “Fluxless optical fiber attachment for hermetic MOEMS applications,” in Thermal and Thermomechanical Proceedings 10th Intersociety Conference on Phenomena in Electronics Systems, 2006. ITHERM 2006., 2006, pp. 6 pp.-1370: IEEE.
[170] A. N. Das, F. L. Lewis, and D. O. Popa, “Data-logging and supervisory control in wireless sensor networks,” in Seventh ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing (SNPD’06), 2006, pp. 330-338: IEEE.

[171] P. Dang, F. L. Lewis, and D. O. Popa, “Dynamic localization of air-ground wireless sensor networks,” in 2006 14th Mediterranean Conference on Control and Automation, 2006, pp. 1-7: IEEE.
[172] B. Borovic, F. Lewis, W. McCulley, A. Q. Liu, E. Kolesar, and D. Popa, “Control issues for microelectromechanical systems,” TEXAS UNIV AT ARLINGTON2006.
[173] B. Borovic, F. Lewis, A. Liu, E. Kolesar, D. J. J. o. M. Popa, and Microengineering, “The lateral instability problem in electrostatic comb drive actuators: modeling and feedback control,” vol. 16, no. 7, p. 1233, 2006.
[174] S. M. Rao et al., “MEMS based implantable drug delivery system,” in Proceedings of VII International Conference on Micro Electro Mechanical Systems, El Paso, TX, USA, 2005, vol. 2122.
[175] D. O. Popa, K. Sreenath, and F. L. Lewis, “Robotic deployment for environmental sampling applications,” in 2005 International Conference on Control and Automation, 2005, vol. 1, pp. 197-202: IEEE.

[176] D. O. Popa et al., “Optimal sampling using singular value decomposition of the parameter variance space,” in 2005 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2005, pp. 3131-3136: IEEE.
[177] D. O. Popa et al., “Automated Assembly and Hermetic Packaging of MOEMS for Applications Requiring Extended Shelf-Lives,” in ASME 2005 International Mechanical Engineering Congress and Exposition, 2005, pp. 285-286: American Society of Mechanical Engineers.
[178] A. Kole, J. Sin, W.-H. Lee, D. Popa, D. Agonafer, and H. Stephanou, “Polymer tube embedded in-plane micropump for low flow rate,” in 24th Digital Avionics Systems Conference, 2005, vol. 2, p. 7 pp. Vol. 2: IEEE.
[179] L.-C. Hsu et al., “3D Microassembly Station,” in 2005 TexMEMS, The VII International Conference on Micro Electro Mechanical Systems, 2005, pp. 21-22.
[180] B. Borovic, A. Liu, D. Popa, Z. Xuming, and F. Lewis, “Lateral motion control of electrostatic comb drive: new methods in modeling and sensing,” in Proceedings of the 16th IASTED International Conference Modelling and Simulation, Cancun, Mexico, 2005, pp. 301-307.

[181] B. Borovic, A. Liu, D. Popa, H. Cai, F. J. J. o. M. Lewis, and Microengineering, “Open-loop versus closed-loop control of MEMS devices: choices and issues,” vol. 15, no. 10, p. 1917, 2005.
[182] B. Borovic, F. L. Lewis, D. Agonafer, E. S. Kolesar, M. M. Hossain, and D. O. J. J. o. M. S. Popa, “Method for Determining a Dynamical State–Space Model for Control of Thermal MEMS Devices,” vol. 14, no. 5, pp. 961-970, 2005.
[183] D. O. Popa, J. T. Wen, H. Stephanou, G. Skidmore, and M. Ellis, “Dynamic modeling and input shaping for MEMS,” in Proc. 2004 NSTI Nanotechnology Conf. and Trade Show (NANOTECH 2004), 2004, vol. 2, pp. 315-318.
[184] D. O. Popa and H. E. J. J. o. m. p. Stephanou, “Micro and mesoscale robotic assembly,” vol. 6, no. 1, pp. 52-71, 2004.
[185] D. O. Popa, H. E. Stephanou, C. Helm, and A. C. Sanderson, “Robotic deployment of sensor networks using potential fields,” in IEEE International Conference on Robotics and Automation, 2004. Proceedings. ICRA’04. 2004, 2004, vol. 1, pp. 642-647: IEEE.

[186] D. O. Popa, A. C. Sanderson, R. J. Komerska, S. S. Mupparapu, D. R. Blidberg, and S. G. Chappel, “Adaptive sampling algorithms for multiple autonomous underwater vehicles,” in 2004 IEEE/OES Autonomous Underwater Vehicles (IEEE Cat. No. 04CH37578), 2004, pp. 108-118: IEEE.
[187] D. O. Popa, J. Critchley, M. Sadowski, K. S. Anderson, and G. J. N.-N. Skidmore, “Computationally efficient dynamic modeling of mems,” vol. 2, pp. 311-314, 2004.
[188] S. S. Mupparapu et al., “Autonomous systems monitoring and control (ASMAC)-an AUV fleet controller,” in 2004 IEEE/OES Autonomous Underwater Vehicles (IEEE Cat. No. 04CH37578), 2004, pp. 119-126: IEEE.
[189] S. Mupparapu et al., “Autonomous monitoring and control (ASMAC)-an AUV fleet controller,” in IEEE/OES AUV2004: A Workshop on Multiple Autonomous Underwater Vehicle Operations, 2004.
[190] B. B. Laundry, G. Montemayor, D. O. Popa, M. K. Taylor, and J. T. Wen, “Crane control system,” ed: US Patent 6,796,447, 2004.

[191] D. O. Popa, B. H. Kang, J. T. Wen, H. E. Stephanou, G. Skidmore, and A. Geisberger, “Dynamic modeling and input shaping of thermal bimorph MEMS actuators,” in 2003 IEEE International Conference on Robotics and Automation (Cat. No. 03CH37422), 2003, vol. 1, pp. 1470-1475: IEEE.
[192] T.-J. Hwang, D. O. Popa, J.-Q. Lu, B.-H. Kang, and H. E. Stephanou, “BCB Wafer Bonding Compatible With Bulk Micro Machining,” in ASME 2003 International Electronic Packaging Technical Conference and Exhibition, 2003, pp. 93-99: American Society of Mechanical Engineers.
[193] T. Hwang, D. Popa, J. Sin, H. E. Stephanou, and E. M. Leonard, “BCB wafer bonding for microfluidics,” in Micromachining and microfabrication process technology IX, 2003, vol. 5342, pp. 182-192: International Society for Optics and Photonics.
[194] J. Sin, D. Popa, and H. Stephanou, “Model based automatic fiber alignment,” in Proceeding of the Fiber Optic Automation 2002 Conference, San Diego, CA, 2002.
[195] D. Popa, B. H. Kang, J. Sin, and J. Zou, “Reconfigurable micro-assembly system for photonics applications,” in Proceedings 2002 IEEE International Conference on Robotics and Automation (Cat. No. 02CH37292), 2002, vol. 2, pp. 1495-1500: IEEE.

[196] J. T. Wen, D. O. Popa, G. Montemayor, and P. L. Liu, “Human assisted impedance control of overhead cranes,” in Proceedings of the 2001 IEEE International Conference on Control Applications (CCA’01)(Cat. No. 01CH37204), 2001, pp. 383-387: IEEE.
[197] D. O. Popa and J. T. J. A. J. o. C. Wen, “CORRECTION TO “SINGULARITY COMPUTATION FOR ITERATIVE CONTROL OF NONLINEAR AFFINE SYSTEMS”,” vol. 2, no. 4, pp. 290-291, 2000.
[198] D. O. Popa and J. T. J. A. J. o. C. Wen, “Singularity computation for iterative control of nonlinear affine systems,” vol. 2, no. 2, pp. 57-75, 2000.
[199] D. O. Popa and J. T. Wen, “Feedback stabilization of nonlinear affine systems,” in Proceedings of the 38th IEEE Conference on Decision and Control (Cat. No. 99CH36304), 1999, vol. 2, pp. 1290-1295: IEEE.
[200] D. O. Popa, S. K. Singh, J. T. Wen, and R. J. Szczerba, “Sub-optimal 3D volume convergence with time and fuel constraints,” in IEEE SMC’99 Conference Proceedings. 1999 IEEE International Conference on Systems, Man, and Cybernetics (Cat. No. 99CH37028), 1999, vol. 6, pp. 669-674: IEEE.

[201] D. O. Popa and D. Singh, “Creating realistic force sensations in a virtual environment: Experimental system, fundamental issues and results,” in Proceedings. 1998 IEEE International Conference on Robotics and Automation (Cat. No. 98CH36146), 1998, vol. 1, pp. 59-64: IEEE.
[202] S. K. Singh, S. D. Pieper, J. Guinness, D. O. J. P. T. Popa, and V. Environments, “Control and coordination of head, eyes, and facial expressions of virtual actors in virtual environments,” vol. 5, no. 4, pp. 402-415, 1996.
[203] D. O. Popa and J. T. J. I. P. V. Wen, “Characterization of singular controls for nonholonomic path planning,” vol. 29, no. 1, pp. 2460-2465, 1996.
[204] D. O. Popa and J. T. Wen, “Nonholonomic path-planning with obstacle avoidance: a path-space approach,” in Proceedings of IEEE International Conference on Robotics and Automation, 1996, vol. 3, pp. 2662-2667: IEEE.
[205] F. Lizarralde, J. Wen, and D. Popa, “Feedback stabilization of nonholonomic systems,” in Proceedings of the 1996 Conference of Information Sciences and Systems, 1996.

[206] S. K. Singh, D. O. J. I. T. o. R. Popa, and Automation, “An analysis of some fundamental problems in adaptive control of force and impedance behavior: Theory and experiments,” vol. 11, no. 6, pp. 912-921, 1995.
[207] C. WILEY, S. SINGH, M. BOSTROM, and D. POPA, “INTERACTIVE LUMBAR PUNCTURE SIMULATOR WITH REAL-TIME 3D GRAPHICS AND TACTILE FEEDBACK,” in ANESTHESIA AND ANALGESIA, 1994, vol. 78, no. 2, pp. U254-U254: WILLIAMS & WILKINS 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436.
[208] S. K. Singh, M. Bostrom, D. O. Popa, and C. W. Wiley, “Design of an interactive lumbar puncture simulator with tactile feedback,” in Proceedings of the 1994 IEEE International Conference on Robotics and Automation, 1994, pp. 1734-1739: IEEE.