Researcher

Humberto Garcia, Ph.D.

Directorate Fellow, Senior Technical Advisor, Research and Development Lead

Research Areas:
Advanced Safeguards; Intelligent Monitoring and Decision Systems Laboratory; Resilience Research Leads; Energy Systems Research; Power and Energy Systems; Advanced Manufacturing and Intelligent Systems; Computer aided diagnosis; Control System Security; Control Systems; Electrical engineering; Grid Integration of Renewable Energy Technologies; Microgrids and Smart Grid ; Modeling and Simulation; Nuclear fuel cycle; Nuclear Nonproliferation and Nuclear Forensics; Risk Informed Decisions; Sensitivity Analysis and Uncertainty Quantification; Smart Grid and Cyber-Physical Systems; Stochastic Hybrid Systems; Surrogate Modeling; System Dynamics modeling

Biography:

Dr. Humberto Garcia is a Directorate Fellow and Senior Technical Advisor at Idaho National Laboratory, currently with the Systems Science and Engineering division. His work revolves around intelligent monitoring, control and supervision problems for complex systems (incl. advanced energy systems, critical infrastructures and low-carbon-centered energy grids, as well as national security and nuclear non-proliferation applications). Particular research efforts pertain to secure embedded intelligence (SEI) including the secure use of computational intelligence and systems theories including control, data analytics, and optimization methods in estimating the state of complex systems, understanding its conditions (incl. health and risk), and taking informed and proactive predictive decisions related to their reliable, efficient, safe, sustainable, and resilient operations. His research work at INL has been supported by multiple sponsors including U.S. Department of Energy (DOE) Advanced Research Projects Agency–Energy (ARPA-E), DOE Solar Energy Technology Office (SETO), DOE Office of Electricity (OE), DOE Office of Nuclear Energy (NE), DOE Office of Environmental Management (EM), National Nuclear Security Administration (NNSA), and several offices within U.S. Department of Defense (DoD) including the Defense Threat Reduction Agency (DTRA) and U.S. Army Communications-Electronics Research, Development and Engineering Center (CERDEC).

Education:

Ph.D., Electrical and Computer Engineering-Minor: Mechanical Engineering, Pennsylvania State University
M.S., Electrical and Computer Engineering, Pennsylvania State University
Dipl.-Ing, Electrical Engineering: Systems & Automatics, Power Systems, Universidad de Carabobo
Certif. High Performance Leadership, University of Chicago, Booth School of Business

Affiliations:

Institute of Electrical and Electronics Engineers (IEEE)
Power and Energy Society (IEEE PES)
American Nuclear Society (ANS)
Institute of Nuclear Material Management (INMM)
SIAM (Society for Industrial and Applied Mathematics)

ASME (American Society of Mechanical Engineers)

Tau Beta Pi (engineering honor society)

Publications:

Journal publications:

H.E. Garcia, M.N. Patterson, R.B. Carlson (2023), “Modeling, Analysis, and Optimization of Complex Nuclear Processes and Facilities via Computational Methods: The HALEU Process Case Study,” Progress in Nuclear Energy (Submitted).
D. Pylorof, H.E. Garcia (2022), “A reinforcement learning approach to long-horizon operations, health, and maintenance supervisory control of advanced energy systems,” Engineering Applications of Artificial Intelligence, 116 (2022) 105454.
H.E. Garcia, D. Pylorof, R. Bhattarai (2023). “A Dynamic Resilient Control Architecture for Distributed Energy Systems,” IEEE Transactions of Smart Grids (working paper).
D. Pylorof, H.E. Garcia (2023). “Towards self-driving energy systems using reinforcement learning to weigh plant operations, maintenance, market dynamics, and economics,” (working paper).
D. Pylorof, H.E. Garcia (2023). “Risk-Informed Condition Evaluation for Solar-centered Energy Generation and Distribution Networks through Bayesian Learning and Inference,” IEEE Transactions on Smart Grid (working paper).
H.E. Garcia, W.-C. Lin, D. Pylorof (2023). “Resilient Monitoring of Industrial Cyber-Physical Systems Under Hybrid Threats,” IEEE Transactions on Control Systems Technology (working paper).
H.E. Garcia, S.E. Aumeier, A.Y. Al-Rashdan (2020). “Integrated State Awareness Through Secure Embedded Intelligence in Nuclear Systems: Opportunities and Implications,” Nuclear Science and Engineering, Vol. 194, pp. 249-269, April 2020.
H.E. Garcia, S.E. Aumeier, A.Y. Al-Rashdan, B.L. Rolston (2020). “Secure Embedded Intelligence in Nuclear Systems: Framework and Methods,” Annals of Nuclear Energy, Vol. 140, 2020, 107261.
W.R. Binder, C.J.J. Paredis, H.E. Garcia (2017). “The Value of Flexibility in the Design of Hybrid Energy Systems: A Real Option Analysis,” IEEE Power and Energy Technology Systems Journal, Vol. 4, No. 4, pp. 74-83, Dec. 2017.
H.E. Garcia, M.F. Simpson, W.-C. Lin, R.B. Carlson, T.-S. Yoo (2017). “Application of Process Monitoring to Anomaly Detection in Nuclear Material Processing Systems via System-centric Event Interpretation of Data from Multiple Sensors of Varying Reliability,” Annals of Nuclear Energy, 103, pp. 60-73.
H.E. Garcia, J. Chen, J.-S. Kim, et al. (2016). “Dynamic analysis of two regional nuclear hybrid energy systems,” Journal of Energy, 107, pp. 234-258.
J. Chen, H.E. Garcia (2016). “Economic optimization of operations for hybrid energy systems under variable markets," Journal of Applied Energy, 177, pp. 11-24.
J. Chen, H.E. Garcia, J.-S. Kim, S. Bragg-Sitton (2016). "Operations optimization of nuclear hybrid energy systems ", Journal of Nuclear Technology, Vol. 195, No. 2, pp. 143-156.
J.-S. Kim, J. Chen, H.E. Garcia (2016). “Modeling, control, and dynamic performance analysis of a reverse osmosis desalination plant integrated within HES,” Journal of Energy, 112, pp. 52-66.
H.E. Garcia, T. Yoo (2019). “Analytical platform for the design, evaluation, and optimization of sensor, communication, and interdiction networks for enhanced physical protection and threat reduction,” Journal of Physical Security (in-progress).
H.E. Garcia, S.M. Meerkov, M.T. Ravichandran (2015). “Resilient plant monitoring systems: Techniques, Analysis, Design, Performance Evaluation,” J. of Process Control, Vol. 32, pp. 51-63.
H.E. Garcia, W.-C. Lin, S.M. Meerkov, M.T. Ravichandran (2014). “Resilient monitoring systems: Architecture, design, and application to boiler/turbine plant,” IEEE Transactions on Cybernetics, Vol. 44, No. 11, pp. 2010-2024.
W.-C. Lin, K. Villez, H.E. Garcia. (2014). “Experimental validation of a resilient monitoring and control system,” Journal of Process Control, Vol. 24, Issue 5, pp. 621-639.
H.E. Garcia, A. Mohanty, W.-C. Lin, R.S. Cherry (2013). ``Dynamic Analysis of Hybrid Energy Systems under Flexible Operations and Variable Renewable Generations--Part I: Dynamic Performance Analysis,'' Journal of Energy, vol. 52, pp. 1-16.
H.E. Garcia, A. Mohanty, W.-C. Lin, R.S. Cherry (2013). ``Dynamic Analysis of Hybrid Energy Systems under Flexible Operations and Variable Renewable Generations--Part II: Dynamic Cost Analysis,'' Journal of Energy, vol. 52, pp. 17--26.
W.-C. Lin, H.E. Garcia, T.-S. Yoo (2013). “A Diagnoser Algorithm for Anomaly Detection in DEDS under Partial and Unreliable Observations: Characterization and Inclusion in Sensor Configuration Optimization,” Journal of Discrete Event Dyn. Sys, Vol. 23, Issue 1, pp. 61-91.
H.E. Garcia, T.L. Burr, et al. (2012). “Integration of Facility Modeling Capabilities for Nuclear Nonproliferation Analysis,” Journal on Progress in Nuclear Energy, Vol. 54, Issue 1, pp. 96-111.
T.L. Burr, //, H.E. Garcia, et al. (2012). "Roles for process monitoring in nuclear safeguards at aqueous reprocessing plants. Journal of Nuclear Material Management, Vol. 40, pp. 42–53.
T. Bjornard, H.E. Garcia, W. Desmond, S. Demuth (2010). “Safeguarding and Protecting the Nuclear Fuel Cycle,” Nuclear News. pp. 76-80.
T. Yoo, H.E. Garcia (2009). “Event counting of partially-observed discrete-event systems with uniformly and nonuniformly bounded diagnosis delays,” Journal of Discrete-Event Dynamic Systems. (2009) 19: pp. 167-187, ISSN: 0924-6703.
T. Yoo, H.E. Garcia (2008). “Diagnosis of behaviors of interest in partially-observed discrete-event systems,” Journal of Systems & Control Letters, Vol. 57, Issue 12, pp. 1023-1029.
H.E. Garcia, T. Yoo (2005). “Model-based detection of routing events in discrete flow networks,” Journal of Automatica, Vol. 41, No. 4, pp. 583-594.
H.E. Garcia, R. Vilim (2003). “Integrating Physical Modeling, Neural Computing, and Statistical Analysis for Online Process Monitoring,” J. of Nuclear Technology, Vol. 141, No. 2, pp. 69-77.
S. Jiang, R. Kumar, H.E. Garcia (2003). “Optimal Sensor Selection for Discrete-Event Systems with Partial Observation,” IEEE Transactions on Automatic Control, Vol. 48, No. 3, pp. 369-381.
S. Jiang, R. Kumar, H.E. Garcia (2003). “Diagnosis of Repeated/Intermittent Failures in Discrete-Event Systems,” IEEE Transactions on Robotics & Automation, Vol. 19, No. 2, pp. 310-323.
H.E. Garcia (2002). “Proliferation Resistance of Advanced Sustainable Nuclear Fuel Cycles,” Nuclear Plant Journal, Vol. 20, Issue 1, pp. 18-25.
R. Vilim, H.E. Garcia, F. Chen (2001). “An Identification Scheme Combining First Principle Knowledge, Neural Networks, and Likelihood Ratio Test,” IEEE Transactions on Control Systems Technology, Vol. 9, No. 1, pp. 186-199.
H.E. Garcia (2000). "Operational analysis and improvement of a spent nuclear fuel handling and treatment facility using discrete event simulation." Journal of Computers & Industrial Engineering, Vol. 38, No.2, pp. 235-249.
H.E. Garcia (1998). “Modeling and Control of a Sodium Conversion Process Applied to Nuclear Decommissioning Activities,” Journal of Nuclear Technology, Vol. 123, No. 2, pp. 166-183.
H. E. Garcia, A. Houshyar (1998). “Discrete event simulation of fuel transfer strategies for defueling a nuclear reactor,” Journal of Simulation, Vol. 70, No. 2, pp. 104-118.
H.E. Garcia (1997). “A Hierarchical Platform for Implementing Hybrid Systems in Process Control,” Journal of Control Engineering Practice, Vol. 5, No. 6, pp. 779-789.
R. Vilim, H.E. Garcia (1997). “Hierarchical Control of Reactor Inlet Temperature in Pool-Type Plants: Physics of Control,” J. of Nuclear Science & Engineering, Vol.125, No. 3, pp. 324-336.
H.E. Garcia, R. Vilim, E.M. Dean (1997). “Hierarchical Control of Reactor Inlet Temperature in Pool-Type Plants: Implementation and Results,” Journal of Nuclear Science & Engineering, Vol. 125, No. 3, pp. 337-347.
H.E. Garcia, A. Ray (1996). “State-Space Supervisory Control of Reconfigurable Discrete-Event Systems,” International Journal of Control, Vol. 63, No. 4, pp. 767-797.
H.E. Garcia, A. Ray, R.M. Edwards (1995). “A Reconfigurable Hybrid System and Its Application to Power Plant Control,” IEEE Trans. on Control Systems Technology, Vol. 3, No. 2, pp. 157-170.
R.M. Edwards, J. A. Turso, K. Y. Lee, H.E. Garcia, A. Ray (1992). "The Penn State Intelligent Distributed Control Research Laboratory," IEEE Trans. on Energy Conv., Vol. 7, pp. 478-482.
H.E. Garcia, A. Ray, R.M. Edwards (1991). "Reconfigurable Control of Power Plants Using Learning Automata," IEEE Control System Magazine, Vol. 11, No. 1, pp. 85-92.

Conference publications:

· D. Pylorof, H.E. Garcia (2023), “Uncertainty-aware photovoltaic generation estimation through fusion of physics with harmonics information using Bayesian neural networks”, 2023 IEEE Innovative Smart Grid Technologies (ISGT), Washington, D.C., January 16 – 19, 2023, to appear.

D. Pylorof, H.E. Garcia, R. Bhattarai (2023), “Risk-Informed Condition Evaluation of Solar-centered Energy Generation and Distribution Networks through Bayesian Learning and Inference,” 2023 IEEE Innovative Smart Grid Technologies (ISGT), Washington, D.C., January 16 – 19, 2023, to appear.

R. Bhattarai, H.E. Garcia (2022), “Online Health Monitoring of Photovoltaic Distributed Energy Resources,” 2022 IEEE Power & Energy Society (PES) General Meeting (GM), Denver, CO, July 17-21, 2022.

J. Chen, H.E. Garcia (2016). "Operations optimization of hybrid energy systems under variable markets," 2016 American Control Conference (ACC), July 6-8, Boston, MA, pp. 3212-3218.

J.-S. Kim, H.E. Garcia (2015). “Nuclear-Renewable Hybrid Energy System for Reverse Osmosis Desalination Process,” Transaction of the American Nuclear Society, vol. 112, pp. 121-124.

D. Curtis, C. Forsberg, H.E. Garcia (2015). “Development of Nuclear Renewable Oil Shale Systems for Flexible Electricity and Reduced Fossil Fuel Emissions,” International Congress on Advances in Nuclear Power Plants (ICAPP 2015).

W. Du, H.E. Garcia, W. Binder, C.J.J. Paredis (2014). "Value-Driven Design and Sensitivity Analysis of Hybrid Energy Systems using Surrogate Modeling" 3RD International Conference on Renewable Energy Research and Applications (2014 ICRERA).

H.E. Garcia, S.M. Meerkov, M.T. Ravichandran (2014). “Combating Curse of Dimensionality in Resilient Plant Monitoring Systems: Overlapping Decomposition and Knowledge Fusion”, 52nd Annual Allerton Conf. on Communication, Control, and Computing, pp. 637-642.

M.F. Simpson, D. Rappleye, E.D. Blandford, H.E. Garcia (2014). “Signature Based Safeguards Alternative to Nuclear Material Accountancy;” 57th Institute of Nuclear Material Management Annual Meeting (INMM 2014).

W. Du, H.E. Garcia, C.J.J. Paredis (2014). "An Optimization Framework for Dynamic Hybrid Energy Systems" 10th International Modelica Conference, pp. 767-776.

W.R. Binder, C.J.J. Paredis, H.E. Garcia (2014). "Hybrid Energy System Modeling in Modelica", 10th International Modelica Conference, pp. 979-988.

H.E. Garcia, W.-C. Lin, S.M. Meerkov, M.T. Ravichandran (2013). “Resilient plant monitoring system: Design, analysis, and performance evaluation,” 52nd IEEE Conference on Decision and Controls (2013 CDC), pp. 4983-4990.

W.-C. Lin, H.E. Garcia (2013). ``Synthesis and Optimization of a Bayesian Belief Network Based Observation Platform for Anomaly Detection under Partial and Unreliable Observations,'' 9th IEEE Conference on Automation Science and Engineering (CASE 2013), pp. 51-58.

W.-C. Lin, H.E. Garcia (2013). “Inclusion of Game-Theoretic Formulations for Resilient Condition Assessment Monitoring,” 2013 IEEE 6th Inter. Symposium on Resilient Control Systems (ISRCS 2013), pp. 96-103, STI Number: INL/CON-13-29037.

H.E. Garcia, W.-C. Lin, S.M. Meerkov, M.T. Ravichandran (2013). “Resilient Monitoring System for Boiler/Turbine Plant,” 2013 6th Inter. Symp. Resilient Control Systems (ISRCS 2013), pp. 104-110.

H.E. Garcia, M.F. Simpson, W.-C. Lin, T.-S. Yoo, R.B. Carlson (2013). "Detecting Proliferation Activities via System-centric Integration and Interpretation of Multi-Modal Data Collected from a System of Sensors,'' 54rd Annual Meeting of the Institute of Nuclear Materials Manag. (INMM 2013).

H.E. Garcia, W.-C. Lin, S. M. Meerkov (2012). “A Resilient Condition Assessment Monitoring System,” 5th Inter. Symposium of Resilient Control Systems (ISRCS 2012), pp. 98–105,.

H.E. Garcia, W.-C. Lin, S. M. Meerkov, M. T. Ravichandran (2012). “Data quality assessment: Modeling and application in resilient monitoring systems,” 5th Inter. Symposium on Resilient Control Systems (ISRCS 2012), pp. 124–129.

H.E. Garcia, W.-C. Lin, S. F. DeMuth, R. Carlson, T.L. Burr (2012). “Evaluating Safeguards Benefits of Process Monitoring as compared with Nuclear Material Accountancy”, 53rd Institute of Nuclear Materials Management Annual Meeting (INMM 2012), pp. 666-675.

H.E. Garcia, A. Mohanty, J. Christophersen, W.-C. Lin (2012). "On-line State-of-Health and Remaining-Useful-Life Assessment of Batteries using Rapid Impedance Spectrum Measurements,"

45th Power Sources Conference 2012, Las Vegas, NV, June 11-14, pp. 115-118. · A.J. Bakel, T. Burr, S.F. DeMuth, M.H. Ehinger, K. Frey, H.E. Garcia, J. Howell, S. Johnson, J.F. Krebs, C. Orton, J. Schwantes. (2012). “Safeguarding the next generation reprocessing plants – solution monitoring of solvent extraction,” 53rd Inst. of Nuclear Material Mgmt (INMM 2012).

H.E. Garcia, N. Jhamaria, H. Kuang, W.-C. Lin, S. M. Meerkov, (2011). “Resilient monitoring system: Design and performance analysis, 4th Inter. Symposium on Resilient Control Systems (ISRCS 2011), pp. 61-68.

W.-C. Lin, H.E. Garcia, T. Yoo (2011). “Selecting Observation Platforms for Optimized Anomaly Detectability under Unreliable Partial Observations,” American Ctrl. Conf. 2011, pp. 4470-4477. · H.E. Garcia, et al. (2011). "Integrated Process Monitoring Based on Systems of Sensors for Enhanced Nuclear Safeguards Sensitivity and Robustness," 52nd Inst. of Nuclear Materials Mgmt INMM 2011.

K. Villez, V. Venkat, H.E. Garcia, C. Rieger (2011). “Supervisory control of a pilot-scale cooling loop,” 4th IEEE Inter. Symposium on Resilient Control Systems (ISRCS 2011), pp. 75–80.

Bakel, T.L. Burr, //, H.E. Garcia, et al. (2011). “A dissolver diversion scenario illustrating the value of process monitoring,” 52nd Institute of Nuclear Material Management Meeting (INMM 2011).

W.-C. Lin, T. Yoo, H.E. Garcia (2010). “Sensor Configuration Selection for Discrete-Event Systems under Unreliable Observations,” 6th IEEE Conf. Automation Sci. and Engr. CASE 2010, pp. 477-484.

H.E. Garcia, W.-C. Lin, T. Yoo (2010). “Process Monitoring for Safeguards via Event Generation, Integration, and Interpretation,” 51st Inst. of Nuclear Material Mgmt Annual Meeting (INMM 2010).

K. Villez, V. Venkatasubramanian, H.E. Garcia, C. Rieger, T. Spinner (2010). “Achieving resilience in critical infrastructures: A case study for a nuclear power plant cooling loop,” IEEE 3rd International Symposium on Resilient Control Systems (ISRCS 2010), pp. 49–152.

K. Villez, T. Spinner, H.E. Garcia, C. Rieger, R. Renga (2010). “Bayesian Fault Detection and Isolation: Test Results for a Simple Benchmark Problem,” AICHE Annual Conference (AICHE 2010).

K. Villez, B. Srinivasan, S. Narasimhan, C. Rieger, H.E. Garcia (2010). “Bayesian Belief Networks for Integration of Parallel Fault Diagnosis Modules into Supervisory Control Systems,” AICHE Annual Conference (AICHE 2010).

L.L. Baxter, H.E. Garcia, B. Liu (2010). “Slag-Refractory Interactions During Coal and Biomass Combustion and Gasification,” Coal: Rising to New Challenges - Clearwater Clean Coal Conference - The 35th International Technical Conference on Clean Coal & Fuel Systems, Clearwater, Florida.

W.-C. Lin, H.E. Garcia, D. Thorsley, T. Yoo (2009). "Sequential Window Diagnosers for Discrete-Event Systems under Unreliable Observations," 47th Annual Allerton Conference on Communication, Control and Computing, pp. 668-675.

T. Yoo, H.E. Garcia (2008). “Stochastic event counter for discrete-event systems under unreliable observations,” 2008 American Control Conference (ACC 2008), pp. 1145-1152.

D. Thorsley, T. Yoo, H.E. Garcia (2008). “Diagnosability of Stochastic Discrete-Event Systems Under Unreliable Observations,” 2008 American Control Conference (ACC 2008), pp. 1158-1165.

B. Liu, H.E. Garcia, L.L. Baxter (2008). “A Simplified Phase Equilibrium Algorithm Used to Predict

Ash/Slag Behaviors in Slagging Gasifiers/Combustors”. 25th Annual Inter. Pittsburgh Coal Conf.

B. Liu, H.E. Garcia, L.L. Baxter (2008). “Modeling Refractory Wear Due to Chemical Corrosion in Slagging Gasifiers”. 33rd Int. Tech. Conference on Coal Utilization and Fuel Systems.

H.E. Garcia, A. Ray, and D. Roverso (2007). “Symbolic Time Series Analysis in Aladdin for On-line Condition Monitoring,” Enlarged Halden Programme Group Meeting, C5.6. · T. Yoo, H.E. Garcia (2007). "Intruder activity analysis under unreliable sensor networks," IEEE Automation Science and Engineering (CASE 2007), pp. 578-584.

T. Yoo, H.E. Garcia (2006). “An anomaly detection and isolation scheme with instance-based learning and sequential analysis,” Nuclear Plant Instrumentation Controls, and Human Machine Interface Technology (2006 NPIC&HMIT).

T. Yoo, H.E. Garcia (2006). "Sensor deployment optimization for network intrusion detection," 44th Annual Allerton Conference on Communication, Control, and Computing, Vol. 3, pp. 996-1005.

Alpay, H.E. Garcia, T. Yoo (2006). A Hybrid Model Combining First-principles and Data-Driven Models for On-line Condition Monitoring,” 5th Inter. Meeting on Nuclear Plant Instrumentation, Controls, and Human machine Interface Technology (2006 NPIC&HMIT).

H.E. Garcia (2005). “Objective-driven, Model-based Safeguards Design and Simulation: A Development Platform for Designing, Simulating, and Evaluating New Generation of Integrated Safeguards Systems,” 46th Inst. of Nuclear Materials Management Annual Meeting (INMM 2005).

H.E. Garcia, T. Yoo (2005). “Anomaly Detection via Optimal Symbolic Observation of Physical Processes,” IAEA Int. Conference on Online Condition Monitoring.

T. Yoo, H.E. Garcia (2005). “New results on discrete-event counting under reliable and unreliable observation information,” 2005 IEEE Networking, Sensing and Control, pp. 688-693, 2005.

H.E. Garcia, T. Yoo (2004). “A methodology for detecting routing events in discrete flow networks," 2004 IEEE American Control Conference (ACC 2004), Vol. 6, pp. 5665-5670.

T. Yoo, H.E. Garcia (2004). “Event Diagnosis of Discrete-Event Systems with Uniformly and Nonuniformly Bounded Diagnosis Delays,” 2004 American Ctrl. Conf., Vol. 6, pp. 5102-5107.

H.E. Garcia, T. Yoo (2004). “An optimization tool for designing objective-driven, model based diagnosis/supervision of discrete-event systems,” 42nd Annual Allerton Conference on Communication, Control, and Computing.

H.E. Garcia, T. Yoo (2004). “Option: A software package to design and implement optimized safeguards sensor configurations,” 45th Institute of Nuclear Materials Management Annual Meeting (INMM 2004), Vol. 45, pp. 101.

H.E. Garcia (2003). “A methodology for evaluating nuclear material inventories with respect to their possible use in radiological dispersion devices,” Global 2003.

H.E. Garcia, T. Yoo (2003). “Methodology to optimize and integrate safeguards sensor configurations and measurements in large nuclear facilities,” 44th Institute of Nuclear Materials Management Annual Meeting (INMM 2003). This paper introduces the notion of Nuclear Operations Accountancy.

T. Yoo, H.E. Garcia (2003). “Computation of fault detection delay in discrete-event systems,” DX 2003, 14th Workshop on Principles of Diagnosis. · K. Silvester, H.E. Garcia, et al. (2003). “Integrating safeguards in advanced fuel cycle designs,” 44th
Institute of Nuclear Material Management Annual Meeting (IMMM 2003).

S. Jiang, R. Kumar, H.E. Garcia (2002). “Diagnosis of repeated failures in discrete event systems,” 2002 IEEE Conference in Decision and Control (CDC 2002).

H.E. Garcia (2002). “A safeguards-by-design approach to enhance safeguards observability of nuclear energy systems,” 2002 America Nuclear Society Winter Meeting.

H.E. Garcia, M.J. Lineberry, S.E. Aumeier, H.F. McFarlane (2001). “Proliferation Resistance of Advanced Sustainable Nuclear Fuel Cycles,” 2001 Global 2001. Also at 2001 ANS Winter Meeting.

H.E. Garcia, R. Vilim (2000). “Integrating Physical Modeling, Neural Computing, and Statistical Analysis for Online Process Monitoring,” 3rd American Nuclear Society Nuclear Plant Instrumentation Control and Human-Machine Interface Technologies (NPIC&HMIT 2000).

H.E. Garcia, R.B. Vilim (1998). “Combining physical modeling, neural processing, and likelihood testing for online process monitoring,” IEEE Conf. on Syst., Man, Cybernetics, Vol. 1, pp. 806-810.

H.E. Garcia, A. Ray (1995). “State-space supervision of reconfigurable discrete event systems,” 34th IEEE Conf. on Decision and Control (CDC 1995), Vol. 1, pp. 433-438.

H.E. Garcia (1995). “Control and Supervision of a Complex Production Process Using Hybrid Systems Techniques,” 1st IEEE Inter. Conf. on Engr. of Complex Computer Systems (ICECCS 95). ·

H.E. Garcia, R.B. Vilim, E.M. Dean (1995). “A Master-Follower Type Distributed Scheme for Reactor Inlet Temp. Ctrl,” 9th Power Plant Dynamics, Control, and Testing Symposium (PPDCT 95).

H.E. Garcia, A. Houshyar, G.R. Imel (1995) “Planning and Supervision of Reactor Defueling Using Discrete Event Techniques,” INRIA/IEEE Conf. on Emerging Technologies and Factory Automation.

H.E. Garcia, A. Ray, R.M. Edwards (1994). “A reconfigurable hybrid supervisory system for process control,” 33rd IEEE Conf. on Decision and Control, Dec. 14-16, pp. 3131-3136.

R.M. Edwards, H.E. Garcia, N. Mesick (1993). “Results from an in-plant Demonstration of Intelligent Control”, Transactions of American Nuclear Society, 69:153-156.

R.M. Edwards, J.A. Turso, H.E. Garcia (1993). “Fault-Accommodating Feedwater Control Simulation and Verification for In-Plant Test”, ANS Topical Meeting on Nuclear Power Plant Instrumentation, Control, and Man-Machine Interface Technologies, pp. 333-340.

R.M. Edwards, H.E. Garcia, et al. (1992). "Advanced Control Research at Pennsylvania State University," EPRI Conference on Advanced Digital Computers, Controls, and Automation Technologies for Power Plants, 10 pages.

H.E. Garcia, R.M. Edwards, A. Ray, E.H. Klevans (1991). "On-line Diagnostics and Intelligent Ctrl. for the Steam Plant at EBR-II," AI 91: Frontiers in Innovative Computing for the Nuclear Industry.

R.M. Edwards, J.A. Turso, H.E. Garcia, S. Dharap, S. Lee (1991). "Real-time Distributed Simulation Using the Modular Modeling System Interfaced to a Bailey NETWORK 90 System," EPRI 1991 Inter. Conf. on Power Plant & Power System Training, Simulators, and Modeling, Miami Beach, FL, April 15-17, pp. 69-83.

J.A. Turso, R.M. Edwards, D. Hughes, M. Bryan, H.E. Garcia (1991). "Experience With Developing a Real World Advanced Control and Diagnostic Testbed Using a University Research Reactor," AI 91: Frontiers in Innovative Computing for the Nuclear Industry.

H.E. Garcia, A. Ray (1990). “Nonlinear schemes for learning automata,” 29th IEEE Conference on Decision and Control (CDC 1990).

H.E. Garcia, A. Ray, R.M. Edwards (1990). "A Reconfigurable Control Strategy for Distributed Digital Process Control," Sixth Workshop on Adaptive, Learning Systems, pp. 184- 188.

Patents:

H.E. Garcia, J.P. Christophersen (2019). “Systems and Methods for Estimation and Prediction of Battery Health and Performance,” Idaho National Laboratory, Patent No.: US 10,209,314 B2.
K.G. DeWall, H.E. Garcia, M.G. Mc.Kellar (2012). “Force Measuring Valve Assemblies, Systems Including such Valve Assemblies and Related Methods.” Patent No.: US 8,156,822 B2.
H.E. Garcia (2010). “Methods for Setting Adaptive Frequency Band for Power Line Communication,” Idaho National Laboratory, IDR: BA-332.
R.B. Vilim, H.E. Garcia, F.W. Chen (2002). “Statistically Qualified Neuro-Analytic Failure Detection Method and System,” Patent No.: US 6,353,815 B1.

Presentations:

H.E. Garcia (2019). “Secure Embedded Intelligence in Smart Nuclear Reactors, IAEA Technical Meeting on Critical Challenges with DI&C Systems of NPP, Budapest, Hungary, 8-11 Oct. 2019.
H.E. Garcia (2018). “Embedding Intelligence, Security, and Resiliency in Cyber-Physical Systems,” Graduate Engineering Seminar Series, Michigan Technological University, MI.
H.E. Garcia (2016). “Detecting Proliferation Activities via System-centric Integration and Interpretation of Multi-Modal Data Collected from a System of Networked Sensors,” Nuclear Engineering Seminar Series, U. of Utah, Salt Lake City, UT.
H.E. Garcia (2015). “Hybrid Energy Systems: Design, Operation, Optimization, Dynamic Simulation and Controls”, presented at Organization for Economic Co-operation and Development (OECD). Nuclear Energy Agency (NEA), Paris, France.
H.E. Garcia (2014). “Nuclear HES: Challenges and Opportunities”, presented at Organization for Economic Co-operation and Development (OECD). Nuclear Energy Agency (NEA), Paris, France.
H.E. Garcia (2014). “Systems Integration and Optimization Using Dynamic Systems Models.” AIChE CAST Webinar Series.
H.E. Garcia (2013). “Integration of Small Modular Reactors within Clean and Sustainable Hybrid Energy Systems”. Small Modular Reactors Conference, Idaho Falls, ID.
H.E. Garcia (2011). “Resilient Condition Monitoring System: Architecture, Design, and Performance Analysis.” Haythornthwaite Foundation Distinguished Lectures, Temple U.

Awards:

IEEE Senior Member, 2015
IEEE Region 6 Director's Special Award: Resilient Cyber-Physical Systems, 2014
INL Outstanding Excellence in Publication Award, 2014
INL Exceptional Contributions Program Recognition Awards Multiple Years
Best Symposium Paper Award at IEEE 4th Int. Sym. on Resilient Control Systems, 2012
INL Excellence in Action Award, 2005
ANL Inventors Award, 2003
ANL Pacesetter Award, 2000

Research Interests:

Systems theories and applications as applied to diverse fundamental domains including: instrumentation, monitoring, control, supervision, computational intelligence, agile optimization; secure embedded intelligence (SEI), integrated state awareness (ISA), and autonomy; predictive controls and maintenance; cyber/physical security and resiliency of cyber-physical systems (CPS); multi-fidelity, multi-scale digital twins; risk-informed system-centric engineering; data analytics; smart systems, structures, and components; hybrid energy systems; O&M analysis, improvement, and automation; advanced manufacturing; mission-driven operations and survivability; sensor and interdiction networks; nuclear non-/counter-proliferation; Hardware-in-the-Loop (HiL), and at-scale integrated demonstrations.

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