Experience

The following briefly summarizes both my professional and academic experience.

Work experience

I have been with OSIsoft, LLC as a software engineer since August 2012. My work is related to the next generation analytics product and security.

Previously, I worked for Cybernetica AS from Spring 2005 to Summer 2012; I started as a software developer and progressed to software architect and project manager by 2008. I worked over 6 years on designing and programming various enterprise level information systems (J2EE). Additionally, I was part of a number of different projects that have involved technologies such as Oracle Service Bus (OSB), Weblogic, PL/SQL, and various programming languages. For instance, one project was to implement from scratch a compiler for a programming language Waebric using Simpl and Scala.

From 2004 to 2005 I worked for H. Eller School as a system administrator.

Academic experience

I received BSc cum laude and MSc cum laude degrees in applied physics from University of Tartu (Estonia) in 2005 and 2008, respectively. During the undrgraduate study I designed and built electroncis and wrote low level software for an underwater robot (project of my former colleague Madis Listak).

In 2006 I shifted my research focus on more fundamental science – I started developing a physics based model of ionic polymer-metal composite (IPMC) actuators and sensors with professor Aabloo’s group at University of Tartu.

Thereafter, I visited professor Kwang J. Kim laboratory at University of Nevada, Reno (UNR) as a research scholar for two semesters. In 2008 I defended MSc cum laude at University of Tartu, mainly based on the research carried out at UNR.

I continued my studies and research as a Ph.D. student in professor Kim’s work group at UNR. I have also been collaborating with professor Pavel Solin since 2010 in implementing the fundamental IPMC equations in hp-FEM solver Hermes.

In 2012 I earned a Ph.D. in Mechanical Engineering from University of Nevada Reno. The dissertation focused on the underlying physics of electromechanical and mechanoelectrical transduction of IPMC and proposed a fundamental and engineering finite element model of the material. Additionally, a fractal electrode geometry model was proposed and demonstrated. The dissertation is entitled Physics Based Model of Ionic Polymer-Metal Composite Electromechanical and Mechanoelectrical Transduction.

I also earned a Ph.D. in Applied Physics from University of Tartu. The dissertation focused on the hp-FEM model of IPMC materials. The entire mathematical model was derived from scratch and an in-depth study of hp-FEM adaptive mesh approach for calculating IPMC electromechanical and mechanoelectrical transduction was carried out. The dissertation is entiteld hp-FEM model of IPMC deformation.

Overall, my academic work has resulted in 10+ journal articles and over 15+ conference proceedings.

List of publications

Upcoming book

Books

“Biomimetic Robotic Artificial Muscles” by Drs. Kwang J. Kim, Xiabo Tan, Hyouk Ryeol Choi, and David Pugal.

Journal articles

Conference proceedings

  • D. Pugal, K. J. Kim, V. Palmre, K. K. Leang, and A. Aabloo, “Physics-based electromechanical model of IPMC considering various underlying currents,” Proceedings of the SPIE Smart Materials and Structures Conf., Vol. 8340, 83400P (March 2012)
  • V . Palmre, D. Pugal, and K. J. Kim, “Characterization of longitudinal tensile force of millimeter thick IPMCs,” Proceedings of the SPIE Smart Materials and Structures Conf., Vol. 8340, 83402L (March 2012)
  • M . Freudenthal and D. Pugal, “Simpl: a Toolkit for Rapid DSL Implementation,” Proceedings of the 12th Symposium on Programming Languages and Software Tools, Tallinn, Estonia (October 2011)
  • D. Pugal, K. J. Kim, and A. Aabloo, “Advanced Multiphysics Actuation Model of Ionic Polymer-Metal Composites,” Comsol Conference 2011, Boston, Massachusetts (2 page extended abstract, October 2011)
  • J.J. Hubbard, M. Fleming, K. K. Leang, V. Palmre, D. Pugal, and K. J. Kim, “Characterization of Sectored-Electrode IPMC-Based Propulsors for Underwater Locomotion,” Proceedings of the ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems (SMASIS2011), Phoenix, Arizona, #SMASIS2011-5155 (September 2011)
  • S.J. Kim, D. Pugal, W. Johnson, K. J. Kim, and W. Yim, “A Bio-Inspired Multi Degree of Freedom Actuator Based on a Novel Cylindrical Ionic Polymer-Metal Composite Material,” Proceedings of The 15th International Conference on Advanced Robotics (ICAR), Tallinn University of Technology, Tallinn, Estonia, pp. 435-440 (June 2011);
  • D. Pugal, K. J. Kim, K. K. Leang, and V. Palmre, “Modeling and Designing IPMCs for Twisting Transduction,” Proceedings of the SPIE Smart Materials and Structures Conf., Vol. 7976, 79761S (March 2011)
  • D. Pugal, K. J. Kim, P. Solin, and A. Aabloo, “A Novel hp-FEM Model for IPMC Actuation,” Proceedings of the SPIE Smart Materials and Structures Conf., Vol. 7978, 79780E (March 2011)
  • S.J. Kim, D. Pugal, Y. Jung, J. Wong, K. J. Kim, and W. Yim, “A Rod-shaped Ionic Polymer-Metal Composite for Use as an Active Catheter-Platform,” Proceedings of the ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, (SMASIS2010), Philadelphia, Pennsylvania, #SMASIS2010-3789 (September 2010)
  • D. Pugal, A. Aabloo, and K. J. Kim, “Modeling the Transduction of IPMC in 3D Configurations,” Proceedings of the SPIE Smart Materials and Structures Conf., Vol. 7644, 76441T (March 2010)
  • D. Pugal, S. J. Kim, K. J. Kim, and K. K. Leang, “IPMC: Recent Progress in Modeling, Manufacturing, and New Applications,” Proceedings of the SPIE Smart Materials and Structures Conf., Vol. 7642, 7642OU (March 2010)
  • D. Pugal, A. Aabloo, Y. Jung, and K. J. Kim “Full Scale Fast 3D Model of IPMC,” Proceedings of 16th US National Congress of Theoretical and Applied Mechanics (USNCTAM2010), PA (2 page 2 ed abstract, June 2010)
  • D. Pugal, A. Aabloo, K. J. Kim, and Y. Jung, “Modeling IPMC Material with Dynamic Surface Characteristics,” Proceedings of the ASME 2009 Conference on Smart Materials, Adaptive Structures and Intelligent Systems (SMASIS2009), Oxnard, California, #SMASIS2009-1377 (September 2009)
  • D. Pugal, A. Aabloo, and K. J. Kim, “Dynamic Surface Resistance Model of IPMC,” Proceedings of the SPIE Smart Materials and Structures Conf., Vol. 7289, 72891E (March 2009)
  • D. Pugal, H. Kasemägi, M. Kruusmaa, and A. Aabloo, “An Advanced Finite Element Model of IPMC,” Proceedings of the SPIE Smart Materials and Structures Conf., Vol. 6927, 692711 (March 2008)
  • M . Listak, D. Pugal, and M. Kruusmaa, “CFD Simulations and Real World Measurements of Drag of Biologically Inspired Underwater Robot,” Proceedings of US/EU-Baltic International Symposium, 2008 IEEE/OES, pp. 1-4 (2008)
  • D. Pugal, H. Kasemägi, K. J. Kim, M. Kruusmaa, and A. Aabloo, “Finite Element Simulations of the Bending of the IPMC Sheet,” Proceedings of the SPIE Smart Materials and Structures Conf., Vol. 6524, 65240B, (March 2007)
  • M . Listak, D. Pugal, and M. Kruusmaa, “Computational Fluid Dynamics Simulations of a Biomimetic Underwater Robot,” Proceedings of The 13th International Conference on Advanced Robotics (ICAR), pp. 314-319, Keju, Korea (August 2007)
  • M . Listak, D. Pugal, and M. Kruusmaa, “Biomimetic Fish-Like Underwater Robot for Shallow Water Applications,” Proceedings of The 13th International Conference on Advanced Robotics (ICAR), pp. 332-336, Keju, Korea (August 2007)
  • M . Listak, G. Martin, D. Pugal, A. Aabloo, and M. Kruusmaa, “Design of a Semiautonomous Biomimetic Underwater Vehicle for Environmental Monitoring,” Proceedings of the 6th IEEE International Symposium on Computational Intelligence in Robotics and Automation (CIRA2005), pp. 9-14, Espoo, Finland (June 2005)
  • M . Listak, G. Martin, D. Pugal, A. Aabloo, and M. Kruusmaa, “Task-Oriented Design of an Underwater Vehicle for Environmental Monitoring in the Baltic Sea,” Proceedings of the IARP: International Workshop on Underwater Robotics, Genova, Italy (November 2005)

Conference presentations

  • K . J. Kim, W. Yim, and K. K. Leang, Invited talk, presented by D. Pugal, “IPMC Artificial Muscle for Bio-Robotic Applications”, US-Korea conference on Science, Technology, and Entrepreneurship, Los Angeles, California (August 8-11, 2012);
  • D. Pugal, V. Palmre, and K. J. Kim, “A voltage sensing model of IPMC based on the underlying physical processes,” SPIE Electroactive Polymer Actuators and Devices (EAPAD), San Diego, California (March 2012);
  • D. Pugal, P. Solin, and K. J. Kim, “Using hp-FEM to Model Actuation of IPMC Materials,” 3rd International Conference on Computational Methods in Engineering and Science (FEMTEC2011), South Lake Tahoe, California (May 2011);
  • D. Pugal, Y. Jung, A. Aabloo, and K. J. Kim, “Efficient Model of the Electrodes of IPMC,” ASME International Mechanical Engineering Congress & Expo, Lake Buena Vista, Florida (November 2009);

Misc

  • D. Pugal, M. Listak, “Allveerobot Läänemere keskkonnaseireks,” A & A, Vol. 5, pp. 22 - 31 (2005)