All files on this page are in .pdf format. Adobe Reader is required to view them. If you need the reader, you can download it for free here.

2024  

• Bridge Saftey Roundtable Final.pdf Key Insights from Nuclear Power Risk Informed Assessments
• Deep Learning-Interpretive Reliability Predictive Models Using Test and Field Data Presented at Amazon Lab 126 Workshop on Reliability on February 21st, 2024
• Beyond Throwaway Culture: Attaining Sustainability Through the Strength of Durable Products Durability Presentation  Amazon Workshop  February 20th, 2024
• A Deep Learning Approach for Discovering the Underlying Physics of Degradation for Date Driven Prognostics Presented at RAMS 2024 January 24th, 2024

2023 

• PRA Research at CRR  Presentation to Constellation Energy Presented at University Of Maryland Center for Risk and Reliability November 15th, 2023
• CRR FM Presentation  – Presented at the Technical University Of Denmark on A Quick Overview of GTST Functional Modeling, August 7th, 2023
• Sustainable, Safe and Carbon Free Nuclear Energy   Sustainable, Safe and Carbon-Free Nuclear Energy Presented at ARCH 272 April 20, 2023
• RAMS2023 Workshop Lecture   Presented at RAMS2023 in Orlando, Florida January 27th, 2023

2022

• Probabilistic Risk Assessment: Frontiers and Prospects  Presented at College of Safety and Ocean Engineering China University of Petroleum- Beijing (CUP) November 1st, 2022
• Fundamental Sciences of Reliability. Presented at the Distinguished Lecture Series on Quality, Reliability, Availability, Maintainability and Safety (QRAMS). IIT Kharagpur – INDIA, February 2022.
• Deep Learning in R&M: Challenges, Opportunities and Future Perspective. Panel talk at the 68th Annual Reliability and Maintainability Symposium, Tucson, Arizona. January 2022.

2021

• Multi-Unit PRA Advances, Issues, Impediments and Promise. Presented at the University of Maryland, November 2021.
• Research Frontiers in Probabilistic Risk Assessment. Keynote Talk at ABRISCO 2021 Congress, November 2021.
• Safe and Clean Nuclear Power: A path to No Carbon Future. Presented at ARCH 289i: Sustainability at the University of Maryland, April 2021.

2020

• Reliability Engineering: Today and Beyond, Keynote at the 6th Annual Conference of the Institute for Quality and Reliability, Tsinghua University, People’s Republic of China
• Sustainable, Safe and Clean Nuclear Energy, Lecture Presented to ARCH 289i: Sustainability at the University of Maryland, College Park, MD

2019

• Advances in Probabilistic Physics-of-Failure, Keynote at Well Engineering Reliability Workshop, Rio de Janeiro, Brazil
• Summary of the April 26, 2019 Workshop on Safety and Risks of Autonomous Vehicles, Panel on Advancing Safety Technologies for Autonomous Vehicles, U.S. Congress
• Reliability Science, Entropy and Applications to Corrosion-Fatigue, Presented at Department of Civil, Structural and Environmental Engineering, University of Buffalo, Buffalo, NY
• Characterization and Quantification of Uncertainties in Probabilistic Fracture Mechanics with Applications to Probability of Detection and Sizing of Flaws and Cracks, Presented at the 3rd International Seminar on Probabilistic Methods for Nuclear Applications, Rockville, MD
• What’s Accomplished and What’s Remained in MUPSA Methods and Applications, Keynote at Technical Meeting on Multiunit Probabilistic Safety Assessment, Vienna, Austria
• A Machine Learning Approach to Integrity Management of Pipelines, Presented at SPE Workshop: Digital Asset Integrity Management (D-AIM), Abu Dhabi, UAE
• A Review of Multi-Unit PRA Issues, Presented at PSA 2019 Topical Meeting, Charleston, SC
• R&D Prioritization, Panel Presented at PSA 2019 Topical Meeting, Charleston, SC
• Role of Universities in Keeping PRA a Vital Force, Panel Presented at PSA 2019 Topical Meeting, Charleston, SC
• The Panel Session on PRA Knowledge Management Preserving Data and Information, Panel presented at PSA 2019 Topical Meeting, Charleston, SC
• Lessons from the Nuclear Risk-Informed Assessments, Presented at Workshop on Autonomous Vehicles: Issues and Future Directions, College Park, MD

2018

• A Physics-of-Failure Approach for Common Cause Failures Subject to Age-Related Degradation, Presented at PSAM 14, Los Angeles, CA
• A Review of Multi-Unit Nuclear Power Plant Probabilistic Risk Assessment Research, Presented at 26th International Conference on Nuclear Engineering (ICONE26), London, England
• Some Misconceptions About Multi-Unit PSAs, Presented at International Workshop on Status of Site Level PSA Developments, Munich, Germany
• An Outline of MUPSA Risk Metrics, Safety Goals and Risk Information, Presented at International Workshop on Status of Site Level PSA Developments, Munich, Germany
• Entropy as an Indication of Damage in Engineering Materials, Presented at Entropy 2018: From Physics to Information Sciences and Geometry, Barcelona, Spain
• Probabilistic Physics-of-Failure: An Entropic Perspective

2017

• MUPSA Methodology Future Developments and Safety Goals, Presented at IAEA Consultancy Meeting on Multi-Unit Probabilistic Safety Assessment, Vienna, Austria
• Overview of the PSA2017 Meeting, Presented at American Nuclear Society Winter Meeting, Washington, DC
• The Panel Session on MUPRA Advances Issues, Impediments, and Promise, Presented at PSA2017, Pittsburgh, PA
• An Acoustic Emission Approach to Assess Remaining Useful Life of Aging Structures under Fatigue Loading, Presented at 4th Multifunctional Materials for Defense Workshop, Arlington, VA
• MUPSA Aggregation and Safety Goals Consideration, IAEA Consultancy Meeting on Multi-Unit Probabilistic Safety Assessment, Vienna, Austria
• Current Trends in Reliability Engineering Research, Presented at Chevron Company, Houston, TX
• Entropic Methods to Study The Evolution of Damage and Degradation of Materials, Presented at 14th International Conference on Fracture, Rhodes, Greece
• Damage Precursors of Acoustic Emission Parameters from Fatigue Loading, Presented at 14th International Conference on Fracture, Rhodes, Greece
• MU-PRA Metrics and Safety Goals Implication, Presented at IAEA Meeting on Multi-Unit Probabilistic Safety Assessment, Vienna, Austria
• Entropic Damage: A New Physics-of-Failure and Prognosis Perspective, Presented at University of Chile, Santiago, Chile
• Characterizing Uncertainty of Engineering Events: Deterministic vs. Probabilistic Analysis of Mechanistic Damages and Failure, Presented at the 29th Annual Regulatory Information Conference (RIC2017), North Bethesda, MD
• Thermodynamics of Damage: A Reliability Engineering Perspective, Presented at Department of Materials Science and Engineering Seminar, Los Angeles, CA

2016

• MU-PRA Methodology and Implications on QHO: Summary of NRC Grant Findings, Presented at the U.S. Nuclear Regulatory Commission
• MU-PRA Methodology, Safety Goals Implication, Current Research at UMD, Presented at IAEA Meeting on Multi-Unit Probabilistic Safety Assessment, Vienna, Austria
• Probabilistic Risk Assessment of Multi-Unit Nuclear Power Plant Sites: Advances and Implication on the Safety Goals, Presented at Ohio State University, Department of Mechanical and Aerospace Engineering, Columbus, OH
• An Acoustic Emission Approach to Assess Remaining Useful Life of Aging Structures Under Fatigue Loading, Presented at Office of Naval Research, Science, & Technology
• Small Crack Fatigue Growth and Detection Modeling with Uncertainty and Acoustic Emission Application, Presented at ITISE 2016 Conference, Granada, Spain
• Overview of Reliability Engineering and My Current Research, Presented at Workshop on Aging and Failure in Biological, Physical and Engineered Systems, Cambridge, MA
• Probabilistic Risk Assessment and Management in the Nuclear Industry: Overview and Applications, Presented at Meeting on Nuclear Energy and Cyber Security, U.S. Naval Academy
• Frontiers of Risk and Reliability Engineering Research, Presented at Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, AZ

2015

• Frontiers of Risk and Reliability Engineering Research, Plenary Keynote at ASME-IMECE2015 Conference, Houston, TX
• An Acoustic Emission Approach to Assess Remaining Useful Life of Aging Structures under Fatigue Loading, Presented at the Office of Naval Research, Science & Technology
• Framework for Assessing Integrated Site Risk of Small Modular Reactors Using Dynamic Probabilistic Risk Assessment Simulation, Presented at ESREL 2015, Zurich, Switzerland
• A Thermodynamic Entropy Based Approach for Fault Detection and Prognostics of Samples Subjected to Corrosion Fatigue Degradation Mechanism, Presented at ESREL 2015, Zurich, Switzerland
• Development of a Generalized Entropic Framework for Damage Assessment
• A Generalized Entropic Framework of Damage: Theory and Applications to Corrosion-Fatigue, Presented at the Structural Mechanics (TIM 2015), Falls Church, VA
• Small Fatigue Crack Initiation and Sizing Using Acoustic Emission, Presented at SAMPE North America Conference, Baltimore, MD
• Multi-Unit Nuclear Plant Risks and Implications of the Quantitative Health Objectives, Presented at the International Topical Meeting on Probabilistic Safety Assessment and Analysis (PSA2015), Sun Valley, ID
• Risk Perspectives and Academic Research on Severe Accidents and Dynamic Simulation-Based Risk Assessment, Presented at NPIC & HMIT 2015, Charlotte, NC
• Prognostics and Health Management in Petroleum Structures, Presented at 2015 Plant Maintenance & Reliability 6th Global Praxis Interactive Technology Workshop
• UMD Reliability Engineering Program: Structure, Philosophy, and Activities, Presented at RAMS-2015 Symposium, Palm Harbor, FL
• Center for Risk and Reliability: Structure, Philosophy, and Research Activities, Presented at Mechanical Engineering Departmental Retreat, College Park, MD

2014

• Center for Risk and Reliability: Structure, Philosophy, and Activities, Presented to Visiting Committee, Mechanical Engineering, College Park, MD
• Significance of Multi-Unit Nuclear Plant Risks and Implications of the Site-Level Quantitative Health Objectives, Presented at the International Workshop on Multi-Unit Probabilistic Safety Assessment, Ottawa, Canada
• Nuclear Power Plant Safety in the Aftermath of Major Emergencies, Presented to Jiangsu Nuclear Power, Plant Emergency Management
• Assessing Reliability Using Developmental and Operational Test Data, Presented at RAMS-2014 Symposium, Colorado Springs, CO
• UM Reliability Engineering Curriculum: Structure and Philosophy, Presented at RAMS-2014 Symposium, Colorado Springs, CO
• Overview of My Research

2013

• Recent Developments in Risk Assessment: Future Perspectives, Presented to GSE Systems
• Advances in Science-Based Reliability Engineering, Presented to FM Global, Norwood, MA
• A Probabilistic Characterization of Simulation Model Uncertainties
• Multi-Module PRA Issues, Presented at American Nuclear Society Embedded Meeting on SMRs
• Agent Autonomy Approach to Probabilistic Physics of Failure Modeling of Complex Dynamic Systems with Interacting Failure Mechanisms, Presented at ANS Risk Management Meeting, Washington, DC
• Reliability Monitoring Using Log Gaussian Process Regression, Presented at PSA 2013, Columbia, SC
• Quantitative Risk Assessment and Modeling: Fire Risks of CNG-Powered Buses, Presented at DOE-Sandia/HySafe QRA Workshop, Washington, DC
• Celebrating Fifty Years of Physics of Failure, Presented at RAMS-2013 Symposium, Orlando, FL
• Risk Analysis and Modeling, Presented at Transportation Research Board’s 92nd Annual Meeting

2012

• Safety Aspects of SMRs A PRA Perspective (ANS DC Talk), Presented at DC ANS Monthly Dinner
• Thermodynamic Assessment of Fatigue Crack Initiation, Presented to Army/Navy TIM, Irvine, CA
• Probabilistic Mechanistic Approach to Modeling Stress Corrosion Cracking in Alloy 600 Components with Applications, Presented at PSAM 2011/ESREL 2012, Helsinki, Finland
• Structuring a Probabilistic Model for Reliability Evaluation of Piping Subject to Corrosion-Fatigue Degradation, Presented to ADNIC/PI Visitors
• Safety and Performance Goals and Measures for Nuclear Power Plant

2011

• Improvements Needed in Nuclear Power Plant Probabilistic Risk Assessments: Lessons Learned from Fukushima, Presented at Nuclear Power Safety 2011, Washington, DC
• An Integrated Approach for Characterization of Uncertainty in Complex Best Estimate Safety Assessment (BCN Uncertainty Analysis), Presented at BCN Workshop
• A Probabilistic Physics-of-Failure Approach to Assessment of Frequency of In-Vessel Steam Generator Tube Rupture Accident in SMRS, Presented at the Nuclear Science and Engineering, MIT
• Nuclear Safety at Calvert Cliffs: Review of Issues Arising from the Japanese Accident, Presented at League of Women Voters Nuclear Forum, Solomons, MD
• Bayesian Knowledge Fusion in Prognostics and Health Management of Structures, Presented at 2011 Pressure Vessels and Piping Conference, Baltimore, MD
• The NuScale Reactor Design, Presented at the US-China Green Development Symposium
• Options for Defining LRF for Applications to the Level-2 PRA and Licensing of SMRS, Presented at PSA-2011

2010

• Bayesian Knowledge Fusion in Prognostics and Health Management: A Case Study, Presented at MaxEnt2010, Chamonix, France
• Risk Assessment Approaches to Managing Weather Extremes in Energy Systems, Presented at ICTP-IAEA Workshop on the Vulnerability of Energy Systems to Climate Change and Extreme Events, Trieste, Italy
• Assessment of the Integrity of Pipelines Subject to Corrosion-Fatigue, Pitting Corrosion, Creep and Stress Corrosion Cracking, Presented at the 1st Annual PI Partner Schools Research Workshop, Abu Dhabi, UAE

Prior to 2010

• A Probabilistic Framework for Model Uncertainty in Fire Simulation Codes, Presented at the American Nuclear Society Risk Management Embedded Meeting
• A Two-Stage Aircraft Tracking Approach Using Probabilistic Fracture Mechanisms and On-Board Condition Monitoring, Presented at IRF 2009 3rd International Conference on Integrity, Reliability, & Failure, Porto, Portugal
• Assessment of the Integrity of Pipelines Subject to Corrosion-Fatigue and Pitting Corrosion, Presented at the 3rd International Conference on Integrity, Reliability, & Failure, Porto Portugal
• A Bayesian Framework for Model Uncertainty Considerations in Fire Simulation Codes, Presented at the 17th International Conference on Nuclear Engineering ICONE17, Brussels, Belgium
• Implications of Nuclear Power Plant Regulation for Future Nuclear Plants Based on Risk and Performance Information, Presented at the 17th International Conference on Nuclear Engineering ICONE17, Brussels, Belgium
• Examples of Uncertainty Analysis in Risk-Informed Applications Involving Physical Processes, Material Degradation and Fracture, Presented at Uncertainty Workshop, Rockville, MD
• Future of Nuclear Energy, Presented at the Clark School of Engineering Sustainability Workshop
• Perspectives from Using PRA in Designing Advanced Reactors: An Iterative Approach to Uses of Risk Information in NuScale Design, Presented at the Workshop on PRA in Design: Increasing Confidence in Pre-Operational Assessments of Risk
• Consideration of Corrosion Induced Degradation in Design and Operation of Equipments: Example of Corrosion-Fatigue Cracking Degradation Modeling
• Nuclear Energy Research Interests
• A Simulation Approach to Risk-Based Design of Complex Dynamic Systems Used in Space Missions, Presented at MCM 2007
• Probabilistic Models to Estimate Fire-Induced Cable Damage at Nuclear Power Plants
• Probabilistic Risk Assessment & Management
• Opportunities in Research Related to Reliability Engineering, Presented to CMC Technology Planning Group, Toshiba Corp.
• UMD Approach TH Code Uncertainty* Assessment Application on LOFT LBLOCA Test Facility
• Engineering Approach to Reliability: Modeling and Probabilistic Assessment, Lecture for ENRE 607 Seminar
• Probabilistic Risk Assessment Model to Study Risk of E. coli O157: H7 Contamination in Hard Cheeses
• Characterization and Modeling of Complex Engineering Systems