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Accomplishments

Journal Publications

  • 2009 H.E. Garcia, W. Lin, T. Yoo, “Process Monitoring and Anomaly Detection Via Event Generation, Detection, and Interpretation,” IEEE Trans. on Control Systems Technology, 2009.
  • 2009 H.E. Garcia, T. Yoo, “Analytical Platform for the Design, Evaluation, and Optimization of Sensor, Communication, and Interdiction Networks for Enhanced Physical Protection and Threat Reduction,” Journal of the Institute of Nuclear Materials Management, 2009.
  • 2009 H.E. Garcia, W. Lin, T. Yoo, D. Thorsley, “Model-based Synthesis of Process Monitoring & Event Detection for Advanced Safeguards,” Nuclear Technology, 2009.
  • 2009 B. Liu, H.E. Garcia, L.L. Baxter, “Modeling Chemical Corrosion in Slagging Gasifers.” Progress in Energy and Combustion Science Journal, 2009.
  • 2009 B. Liu, H.E. Garcia, L.L. Baxter, “Application of a Phase Equilibrium Algorithm in Predicting Ash/Slag Behaviors,” Energy & Fuels Journal, 2009.
  • 2008 T. Yoo, H.E. Garcia, “Event counting of partially-observed discrete-event systems with uniformly and nonuniformly bounded diagnosis delays,” Journal of Discrete Event Dynamic Systems, ISSN: 0924-6703, 2008.
  • 2008 T. Yoo, H.E. Garcia, “Diagnosis of behaviors of interest in partially-observed discrete-event systems,” Journal of Systems & Control Letters, Vol. 57, Issue 12, 2008, pp. 1023-1029.
  • 2005 H.E. Garcia, T. Yoo. 2005. “Model-based detection of routing events in discrete flow networks,” Automatica, Vol. 41, Issue 4, pp. 583-594.
  • 2003 H.E. Garcia, R. Vilim, “Integrating Physical Modeling, Neural Computing, and Statistical Analysis for Online Process Monitoring,” Nuclear Technology, Vol. 141, No. 2, 2003.
  • 2003 S. Jiang, R. Kumar, H.E. Garcia, “Optimal Sensor Selection for Discrete Event Systems with Partial Observation,” IEEE Transactions on Automatic Control, Vol. 48, No. 3, 2003.
  • 2003 S. Jiang, R. Kumar, H.E. Garcia, “Diagnosis of Repeated/Intermittent Failures in Discrete Event Systems,” IEEE Transactions on Robotics & Automation, Vol. 19, No. 2, 2003.
  • 2003 T. Yoo, H.E. Garcia, “Computation of fault detection delay in discrete event systems,” DX 2003, Workshop on Principles of Diagnosis, Washington DC., 2003.
  • 2002 H.E. Garcia, “Proliferation Resistance of Advanced Sustainable Nuclear Fuel Cycles,” Nuclear Plant Journal, Vol. 20, No. 1, 2002.
  • 2002 H.E. Garcia, “A safeguards-by-design approach to enhance safeguards observability of nuclear energy systems,” ANS 2002 Winter Meeting, Washington, DC., 2002
  • 2001 R. Vilim, H.E. Garcia, F. Chen, “An Identification Scheme Combining First Principle Knowledge, Neural Networks, and Likelihood Ratio Test,” IEEE Transactions on Control Systems Technology, Vol. 9, No. 1, 2001.
  • 1998 H.E. Garcia, “Modeling and Control of a Sodium Conversion Process Applied to Nuclear Decommissioning Activities,” Nuclear Technology, Vol. 123, 1998.
  • 1997 H.E. Garcia, “A Hierarchical Platform for Implementing Hybrid Systems in Process Control,” Control Engineering Practice, Vol. 5, No. 6, 1997.
  • 1997 H.E. Garcia, R. Vilim, E. Dean, “Hierarchical Control of Reactor Inlet Temperature in Pool-Type Plants, Part II: Implementation and Results,” Nuclear Science & Engineering, Vol. 125, No. 3, 1997.
  • 1997 R. Vilim, H.E. Garcia, “Hierarchical Control of Reactor Inlet Temperature in Pool-Type Plants, Part I: Physics of Control,” Nuclear Science & Engineering, Vol.125, No. 3, 1997.
  • 1996 H.E. Garcia, A. Ray, “State-Space Supervisory Control of Reconfigurable Discrete Event Systems,” International Journal of Control, Vol. 63, No. 4, 2006.
  • 1995 H.E. Garcia, A. Ray, R. Edwards, “A Reconfigurable Hybrid System and Its Application to Power Plant Control,” IEEE Trans. on Control Systems Technology, Vol. 3, No. 2, 1995.
  • 1991 H.E. Garcia, R. Edwards, A. Ray, “Reconfigurable Control of Power Plants using Learning Automata,” IEEE Control Systems Magazine, III (1), 1991.

Patents/Invention Disclosures

  • “Intelligent Power Operated Valve,” U.S. Patent under review, 2008.
  • “Method and Apparatus for Adaptive Powerline Communication with Dynamic Selection of Carriers and Frequency Bands based on Online Network Assessment,” 2008.
  • “Statistically Qualified Neuro-Analytic Failure Detection Method and System,” U.S. Patent #6,353,815, 2002.

Peer-Reviewed Conference Papers

  • 2009 W. Lin, H.E. Garcia, D. Thorsley, T. Yoo, “Sequential Window Diagnosers for Discrete Event Systems under Unreliable Observations,” 2009 American Control Conference, San Louis, MO.
  • 2008 T. Yoo, H.E. Garcia, “Stochastic event counter for discrete-event systems under unreliable observations,” 2008 American Control Conference, June 2008, Seattle, WA, pp. 1145-1152.
  • 2008 D. Thorsley, T. Yoo, H.E. Garcia, “Diagnosability of Stochastic Discrete Event Systems Under Unreliable Observations,” 2008 American Control Conference, June 2008, Seattle, WA, pp. 1158-1165.
  • 2008 B. Liu, H.E. Garcia, L.L. Baxter, “A Simplified Phase Equilibrium Algorithm Used to Predict Ash/Slag Behaviors in Slagging Gasifiers/Combustors," 25th Annual International Pittsburgh Coal Conference, Pittsburg, PA, 2008.
  • 2008 B. Liu, H.E. Garcia, L.L. Baxter, “Modeling Refractory Wear due to Chemical Corrosion in Slagging Gasifiers," 33rd Int. Conference on Coal Utilization&Fuel Systems, Clearwater, FL, 2008.
  • 2007 H.E. Garcia, A. Ray, and D. Roverso, “Symbolic Time Series Analysis in Aladdin for On-line Condition Monitoring,” Enlarged Halden Programme Group Meeting, Norway, 2007.
  • 2006 T. Yoo, H. E. Garcia, “An anomaly detection and isolation scheme with instance-based learning and sequential analysis,” 2006 NPIC&HMIT, Albuquerque, NM, 2006.
  • 2005 H.E. Garcia, “Objective-driven, Model-based Safeguards Design and Simulation: A Development Platform for Designing, Simulating, and Evaluating New Generation of Integrated Safeguards Systems,” 46th INMM Annual Meeting, Phoenix, AZ, 2005.
  • 2005 H.E. Garcia, T. Yoo, “Anomaly Detection via Optimal Symbolic Observation of Physical Processes,” IAEA Int. Conference on Online Condition Monitoring, Knoxville, TN, 2005.
  • 2005 T. Yoo, H.E. Garcia, “New results on discrete-event counting under reliable and unreliable observation information,” Proceedings of 2005 IEEE International Conference on Networking, Sensing and Control (ICNSC 2005), Tucson, AZ, 2005.
  • 2004 H. Garcia, T. Yoo, “An optimization tool for designing objective-driven, model based diagnosis/supervision of discrete event systems,” 42nd Annual Allerton Conference on Communication, Control, and Computing, Monticello, IL, 2004.
  • 2004 H.E. Garcia, T. Yoo, “Option : a software package to design and implement optimized safeguards sensor configurations,” 45th INMM Annual Meeting, Orlando, FL, 2004.
  • 2004 H.E. Garcia, T. Yoo, “A methodology for detecting routing events in discrete flow networks,” 2004 American Control Conference, Boston, MA.
  • 2004 T. Yoo, H.E. Garcia, “Event Diagnosis of Discrete-Event Systems with Uniformly and Nonuniformly Bounded Diagnosis Delays,” 2004 American Control Conference, Boston, MA.
  • 2003 H.E. Garcia, “A methodology for evaluating nuclear material inventories with respect to their possible use in radiological dispersion devices,” Global 2003, Paris, France.
  • 2003 H.E. Garcia, T. Yoo, “Methodology to optimize and integrate safeguards sensor configurations and measurements in large nuclear facilities,” 44th INMM Annual Meeting, Phoenix, AZ, 2003.

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