Ali Mosleh

INSTITUTE DIRECTOR

Ali Mosleh, NAE
Distinguished Professor and Evalyn Knight Chair in Engineering

Address

Engineering VI Room 500
404 Westwood Plaza
Los Angeles, CA 90095

  • Email: mosleh@ucla.edu

  • Phone: (310)825-6559

Research Interests

  • Dynamic Probabilistic Risk Assessment of Complex Systems (Nuclear Power, Petrochemical Process, Space Missions)
  • Impact of Organizational Factors on Socio-technical Systems Risk
  • Nuclear Power Plant Human Reliability Analysis (Cognitive Modeling, Simulation, Experimental Validation)
  • Common Cause Failure Analysis (Reliability Models, Data Classification and Analysis)
  • Bayesian Methods (Inference with Uncertain Evidence, Use of Expert Opinion, Causal Modeling with Bayesian Belief Networks)
  • Model Uncertainty (Bayesian Framework, Application to Complex Computational Codes – Such as Thermal Hydraulics Codes for Nuclear Power Plants)
  • Aviation Systems Safety Assessment and Monitoring (Risk-based oversight and inspection)
  • Risk Informed Healthcare System Management
  • Reliability Growth Tracking and Prediction Methods
  • Software Reliability Assessment Methodology
  • Information Systems Security Risk Management

Education

  • Ph.D., University of California, Los Angeles, 1981

Honors and Awards

  • Member, National Academy of Engineering (Elected, 2010)
  • Fellow, Society for Risk Analysis (Elected 1999)
  • Nicole J. Kim Eminent Professor of Engineering (2005-present)
  • Glenn L. Martin Institute Professor (2010-present)
  • Gilbert White Fellow, Resources for the Future (2010)
  • Evans- McElroy Award, IEEE Reliability Society (2009)
  • Rotary National Award for Space Achievement (1998)
  • NASA Flight Safety Award (1998)
  • Ford Quality Award, Ford Motor Company (1997)
  • P.K. McElroy Award, IEEE Reliability Society (1995)
  • Best Paper Awards: American Nuclear Society, European Nuclear Society, System Safety Society, IEEE Reliability Society, Society for Risk Analyses, American Society of Mechanical Engineers, ICONE

Professional Memberships

  • Fellow, Society for Risk Analysis
  • American Nuclear Society
  • Society of Reliability Engineering
  • IEEE Society

Selected Publications

+ Books


  • Probabilistic Safety Assessment and Management, Mosleh, Ali Ph.D., R.A. Bari, April 15, 1999
  • Statistical Distribution Functions and Tables Used in Reliability Engineering, Modarres Mohammed Ph.D., Mosleh, Ali Ph.D., Willie Webb, Carol Smidts

+ Refereed Papers for Technical Journals


  • Kazemi, R., Mosleh, A., “Improving Default Risk Prediction Using Bayesian Model Uncertainty Analysis Technique”, Accepted for Publication in Risk Analysis, 2011
  • Groth, K.M., and A. Mosleh “Deriving causal Bayesian networks from human reliability analysis data: A methodology and example model”, Accepted for Publication, Risk and Reliability, 2011.
  • Li, J., A. Mosleh, and R. Kang, “From Blind to Guided Simulation: Biased Monte Carlo Based on Zero-variance Importance Sampling Approximation for Risk and Reliability Applications”, Accepted for Publication in Reliability Engineering & System Safety, 2011
  • Li, J., A. Mosleh, and R. Kang, “Likelihood Ratio Gradient Estimation for Dynamic Reliability Applications”, Reliability Engineering & System Safety, 2011,69(12):1667–1679.
  • Li, J., R. Kang, A. Mosleh, and X. Pan, “Simulation-based Automatic Generation of Risk Scenarios", Systems Engineering & Electronics, 2011,22(3):437–444

+ Conference Proceedings


  • Human Reliability Models: Theoretical and Practical Challenges, Mosleh, Ali Ph.D., H.S. Blackman, N. Siu
  • Model Uncertainty: Its Characterization and Quantification, Mosleh, Ali Ph.D., Carol Smidts, Christiana Lui, Nathan Siu
  • Reliability Growth Modeling: Objectives, Expectations, and Approaches, Mosleh, Ali Ph.D., K.J. Farquhar

+ Conference Papers


  • M. Azarkhil and A. Mosleh, “Modeling and Simulation of the Impact of Team Characteristics on Crew Performance,” Proceedings of the 11th International Conference on Probabilistic Safety Assessment and Management (PSAM-11), Helsinki, Finland, 2012
  • R. Boring, D.L. Kelly, C. Smidts, A. Mosleh, and B. Dyre, “Microworlds, Simulators, and Simulation: Framework for a Benchmark of Human Reliability Data Sources,” Proceedings of the 11th International Conference on Probabilistic Safety Assessment and Management (PSAM-11), Helsinki, Finland, 2012
  • Y-H Chang, A. Mosleh, E.M. Roth, R.E. Richards, S-H Shen, D. Bley, and B. Kirwan, “Methodology for Collection and Analysis of Simulator Data for HRA Applications,” Proceedings of the 11th International Conference on Probabilistic Safety Assessment and Management (PSAM-11), Helsinki, Finland, 2012
  • K. Coyne, C. Huntera, G. DeMossa, N. Siu, Y. Li, and A. Mosleh, “Nuclear Power Plant Precursor Risk Assessment Using a Dynamic Probabilistic Risk Method,” Proceedings of the 11th International Conference on Probabilistic Safety Assessment and Management (PSAM-11), Helsinki, Finland, 2012
  • K. Groth, S-H Shen, J.H. Oxstrand, A. Mosleh, and D.L. Kelly, “A Model-Based Approach to HRA: Example Application and Quantitative Analysis,” Proceedings of the 11th International Conference on Probabilistic Safety Assessment and Management (PSAM-11), Helsinki, Finland, 2012
  • S.M.L. Hendrickson, J.A. Forester, V.N. Dang, A. Mosleh, E. Lois, and J. Xing, “HRA Method Analysis Criteria,” Proceedings of the 11th International Conference on Probabilistic Safety Assessment and Management (PSAM-11), Helsinki, Finland, 2012
  • R. Kazemi, M. Dierks, and A. Mosleh, “A Hybrid Methodology for Modeling Risk of Adverse Events in Complex Healthcare Settings,” Proceedings of the 11th International Conference on Probabilistic Safety Assessment and Management (PSAM-11), Helsinki, Finland, 2012
  • J.L. Lachance, J.N. Cardoni, Y. Li, A. Mosleh, D. Aird, D.M. Helton, and K. Coyne, “Development and Application of a Dynamic Level 1 and 2 Probabilistic Safety Assessment Tool,” Proceedings of the 11th International Conference on Probabilistic Safety Assessment and Management (PSAM-11), Helsinki, Finland, 2012
  • Y. Li and A. Mosleh, “Simulation of Nuclear Power Plant Operators Reasoning Process for Situation Assessment in ADS-IDAC Dynamic PRA Platform,” Proceedings of the 11th International Conference on Probabilistic Safety Assessment and Management (PSAM-11), Helsinki, Finland, 2012
  • Z. Mohaghegh, A. Mosleh, and M. Modarres, “Hybrid Incorporation of Physical & Social Failure Mechanisms into Probabilistic Risk Assessment,” Proceedings of the 11th International Conference on Probabilistic Safety Assessment and Management (PSAM-11), Helsinki, Finland, 2012
  • A. Mosleh, S-H Shen, D.L. Kelly, J.H. Oxstrand, and K. Groth, “A Model-Based Human Reliability Analysis Methodology,” Proceedings of the 11th International Conference on Probabilistic Safety Assessment and Management (PSAM-11), Helsinki, Finland, 2012
  • J.H. Oxstrand, D.L. Kelly, S-H Shen, A. Mosleh, and K. Groth, “A Model-Based Approach to HRA: Qualitative Analysis Methodology,” Proceedings of the 11th International Conference on Probabilistic Safety Assessment and Management (PSAM-11), Helsinki, Finland, 2012
  • M. Pourali and A. Mosleh, “A Bayesian Belief Network Method of Sensor Placement Optimization for System Reliability Monitoring,” Proceedings of the 11th International Conference on Probabilistic Safety Assessment and Management (PSAM-11), Helsinki, Finland, 2012
  • R.E. Richards, E.M. Roth, D. Bley, Y-H Chang, A. Mosleh, and A. Koonce, “Human Performance/Error Data Collection for Incident Analysis via Timeline Generation Method and Tool: A Case Study,” Proceedings of the 11th International Conference on Probabilistic Safety Assessment and Management (PSAM-11), Helsinki, Finland, 2012
  • E.M. Roth, A. Mosleh, Y-H Chang, R.E. Richards, D. Bley, S-H Shen, and A. Zoulis, “Model-based Framework for Characterizing Contextual Factors for HRA Applications,” Proceedings of the 11th International Conference on Probabilistic Safety Assessment and Management (PSAM-11), Helsinki, Finland, 2012
  • C. Smith and A. Mosleh, “Quantifying Impact of Project Risk Decisions and Dependencies Within an Integrated Methodology,” Proceedings of the 11th International Conference on Probabilistic Safety Assessment and Management (PSAM-11), Helsinki, Finland, 2012
  • T.T. Pires and A. Mosleh, “Organizational interface failures: A historical perspective and risk analysis framework,” Proceedings of the 2011 Annual Conference of the European Society for Reliability (ESREL 2011), Troyes, France, 2011.
  • J. Li, R. Kang, and A. Mosleh, “Reliability Sensitivity Analysis via the Likelihood Ratio Method,” Proceedings of the 9th International Conference on Reliability, Maintainability & Safety (ICRMS 2011), Guiyang, China, 2011.
  • K. Groth and A. Mosleh, “Development and Use of a Bayesian Network to Estimate Human Error Probability,” Proceedings of the 2011 International Topical Meeting on Probabilistic Safety Assessment and Analysis (PSA 2011), Wilmington, NC, 2011.
  • D. Chrun, M. Cukier, A. Mosleh, and G. Sneeringer, “Development and Validation of an Information Security Model for Decision Makers,” Proceedings of the 2010 Annual Conference of the European Society for Reliability (ESREL 2010), Rhodes, Greece, 2010.
  • E. Lois, A. Mosleh, and J. A. Forester, “Addressing HRA Model Differences, ” Proceedings of the 2010 Annual Conference of the European Society for Reliability (ESREL 2010), Rhodes, Greece, 2010.
  • D. Chrun, M. Cukier, A. Mosleh, and G. Sneeringer, “Investigating the Impact of Humans in Information Technology Security: A Case Study at the University of Maryland,” Proceedings of the 10th International Conference on Probabilistic Safety Assessment and Management (PSAM-10), Seattle, WA, 2010.
  • K. Coyne and A. Mosleh, “Dynamic Probabilistic Risk Assessment Model Calibration and Validation Using Simulator Data - Another Application of HRA Empirical Study Data,” Proceedings of the 10th International Conference on Probabilistic Safety Assessment and Management (PSAM-10), Seattle, WA, 2010.
  • V. N. Dang, J. A. Forester, and A. Mosleh, “Developing a New HRA Quantification Approach from Best Methods and Practices,” Proceedings of the 10th International Conference on Probabilistic Safety Assessment and Management (PSAM-10), Seattle, WA, 2010.
  • K. Groth and A. Mosleh, “A Performance Shaping Factors Causal Model for Nuclear Power Plant Human Reliability Analysis,” Proceedings of the 10th International Conference on Probabilistic Safety Assessment and Management (PSAM-10), Seattle, WA, 2010.
  • S. M. Hendrickson, A. M. Whaley, R. L. Boring, Y-H Chang, S. H. Shen, A. Mosleh, J. H. Oxstrand, J. A. Forester, and D. L. Kelly, “A Mid-Layer Model for Human Reliability Analysis: Understanding the Cognitive Causes of Human Failure Events,” Proceedings of the 10th International Conference on Probabilistic Safety Assessment and Management (PSAM-10), Seattle, WA, 2010.
  • R. Kazemi, A. Mosleh, and M. Dierks, “On Modeling Risk of Adverse Events In Complex Healthcare Settings,” Proceedings of the 10th International Conference on Probabilistic Safety Assessment and Management (PSAM-10), Seattle, WA, 2010.
  • A. Khoshkhou, M. Cukier, and A. Mosleh, “A Framework for Software Reliability Management Based on the Software Development Profile Model,” Proceedings of the 10th International Conference on Probabilistic Safety Assessment and Management (PSAM-10), Seattle, WA, 2010.
  • J. Li, A. Mosleh, and R. Kang, “From Blind to Guided Simulation: Biased Monte Carlo Based on Entropy and Zero Variance for Dynamic PSA Applications,” Proceedings of the 10th International Conference on Probabilistic Safety Assessment and Management (PSAM-10), Seattle, WA, 2010.
  • Z. Mohaghegh and A. Mosleh, “Development of an Aviation Safety Causal Model Using Socio-Technical Risk Analysis (SoTeRiA),” Proceedings of the 10th International Conference on Probabilistic Safety Assessment and Management (PSAM-10), Seattle, WA, 2010.
  • A. Mosleh, J. A. Forester, R. L. Boring, S. M. . Hendrickson, A. M. Whaley, S. H. Shen, D. L. Kelly, Y-H Chang, V. N. Dang, J. H. Oxstrand, and E. L. Lois, “A Model-Based Human Reliability Analysis Framework,” Proceedings of the 10th International Conference on Probabilistic Safety Assessment and Management (PSAM-10), Seattle, WA, 2010.
  • M. Pourgol-Mohamad, A. Mosleh, and M. Modarres, “Application of Structured Treatment of Model Uncertainty in Complex Thermal-Hydraulics System Codes,” Proceedings of the 10th International Conference on Probabilistic Safety Assessment and Management (PSAM-10), Seattle, WA, 2010.
  • L.M. Ross and A. Mosleh, “Methodology for Detection and Assessment of the Impact of Informal Processes on Organizational Output,” Proceedings of the 10th International Conference on Probabilistic Safety Assessment and Management (PSAM-10), Seattle, WA, 2010.
  • S. H. Shen, A. Mosleh, D. L. Kelly, and R. L. Boring, “Example Application of Model-Based HRA Approach,” Proceedings of the 10th International Conference on Probabilistic Safety Assessment and Management (PSAM-10), Seattle, WA, 2010.
  • C. Shirazi and A. Mosleh, “Expert Panel Size vs. Accuracy of Aggregated Estimates: An Empirical Study,” Proceedings of the 10th International Conference on Probabilistic Safety Assessment and Management (PSAM-10), Seattle, WA, 2010.
  • C. Smith and A. Mosleh, “New Approach to Integrating Various Risk Types Throughout a Development Project,” Proceedings of the 10th International Conference on Probabilistic Safety Assessment and Management (PSAM-10), Seattle, WA, 2010.
  • C. Jackson and A. Mosleh, “Downwards Propagating: Bayesian Analysis of Complex on-demand Systems,” Proceedings of the 2010 Reliability and Maintenance Symposium (RAMS 2010), San Jose, CA, 2010.
  • C. Wang and A. Mosleh, “Qualitative-Quantitative Bayesian Belief Networks for reliability and risk assessment,” Proceedings of the 2010 Reliability and Maintenance Symposium (RAMS 2010), San Jose, CA, 2010.
  • Z. Mohaghegh and A. Mosleh, “Modeling Organizational Influences for New-Generation Probabilistic Risk Analysis of Technical Systems,” Proceedings of the American Nuclear Society Risk Management Embedded Topical Meeting, Washington, DC, 2009.
  • K. Coyne and A. Mosleh, “Modeling nuclear power plant operator knowledge and procedural adherence in the ADS-IDAC simulation model,” Proceedings of the 2009 Annual Conference of the European Society for Reliability (ESREL 2009), Prague, Czech Republic, 2009.
  • K. Groth and A. Mosleh, “A Data-Informed Model of Performance Shaping Factors and their Interdependencies for Use in Human Reliability Analysis,” Proceedings of the 2009 Annual Conference of the European Society for Reliability (ESREL 2009), Prague, Czech Republic, 2009.
  • R. Kazemi, M. Dierks, and A. Mosleh, “A hybrid technique to model dynamic aspects of risk in healthcare settings,” Proceedings of the 2009 Annual Conference of the European Society for Reliability (ESREL 2009), Prague, Czech Republic, 2009.
  • C. Shirazi and A. Mosleh, “Data-informed calibration of experts in Bayesian framework,” Proceedings of the 2009 Annual Conference of the European Society for Reliability (ESREL 2009), Prague, Czech Republic, 2009.
  • K. Groth, C. Wang, D. Zhu, and A. Mosleh, “Methodology and Software Platform for Multi-Layer Causal Modeling,” Proceedings of the 2008 Annual Conference of the European Society for Reliability (ESREL 2008), Valencia, Spain, 2008.
  • K. Coyne and A. Mosleh, "Modeling Nuclear Plant Operator Knowledge and Actions - The ADS-IDAC Simulation Approach,” Proceedings of the 2008 International Topical Meeting on Probabilistic Safety Assessment and Analysis (PSA 2008), Knoxville, TN, 2008.
  • K. Groth and A. Mosleh, “Data-Driven Modeling of Dependencies among Influencing Factors in Human-Machine Interactions,” Proceedings of the 2008 International Topical Meeting on Probabilistic Safety Assessment and Analysis (PSA 2008), Knoxville, TN, 2008.
  • Z. Mohaghegh and A. Mosleh, “Theoretical Foundations for Building Organizational Safety Models for PRA Applications,” Proceedings of the 2008 International Topical Meeting on Probabilistic Safety Assessment and Analysis (PSA 2008), Knoxville, TN, 2008.
  • M. Pourgol-Mohamad, A. Mosleh, and M. Modarres, “A Survey of Uncertainty Analysis Methodologies and Comparison with IMTHUA,” Proceedings of the 2008 International Topical Meeting on Probabilistic Safety Assessment and Analysis (PSA 2008), Knoxville, TN, 2008.
  • D. M. Rasmuson, A. Mosleh, and T. E. Wierman, “Some Component Insights From Analyzing NRC’s Common-Cause Failure Database,” Proceedings of the 2008 International Topical Meeting on Probabilistic Safety Assessment and Analysis (PSA 2008), Knoxville, TN, 2008.
  • E. L. Droguett and A. Mosleh, “Use of heritage data and other partially applicable information in reliability prediction of systems under development,” Proceedings of the 2008 Reliability and Maintenance Symposium (RAMS 2008), Las Vegas, NV, 2008, pp. 224–230.
  • K. Groth, D. Zhu, and A. Mosleh, “Hybrid methodology and software platform for probabilistic risk assessment,” Proceedings of the 2008 Reliability and Maintenance Symposium (RAMS 2008), Las Vegas, NV, 2008, pp. 411–416.
  • H. S. Nejad, D. Zhu, and A. Mosleh, “Hierarchical planning and multi-level scheduling for simulation-based probabilistic risk assessment,” Proceedings of the 2007 Winter Simulation Conference (WSC 2007), Washington DC, 2007, pp. 1189–1197.
  • Z. Mohaghegh, “Multi-dimensional measurement perspective in modeling organizational safety risk,” Proceedings of the 2007 European Safety and Reliability Association Conference (ESREL 2007), Stavanger, Norway, 2007.
  • Y.H. Chang, D. Mercurio, V. N. Dang, and A. Mosleh, “Recent Developments and Insights from Application of ADS-IDAC Dynamic PRA Platform,” Proceedings of the 9th International Conference on Probabilistic Safety Assessment and Management (PSAM-9), Hong Kong, 2007.
  • K. Coyne and A. Mosleh, “Implementation of a Dynamic PRA Approach for the Prediction of Operator Errors During Abnormal Nuclear Power Plant Events,” Proceedings of the 9th International Conference on Probabilistic Safety Assessment and Management (PSAM-9), Hong Kong, 2007.
  • Z. Mohaghegh, R. Kazemi, and A. Mosleh, “A Hybrid Technique for Organizational Safety Risk Analysis,” Proceedings of the 9th International Conference on Probabilistic Safety Assessment and Management (PSAM-9), Hong Kong, 2007.
  • H. S. Nejad and A. Mosleh, “SimPRA: A Simulation-Based Probabilistic Risk Assessment Framework for Dynamic Systems,” Proceedings of the 9th International Conference on Probabilistic Safety Assessment and Management (PSAM-9), Hong Kong, 2007.
  • M. Pourgol-Mohamad, M. Modarres, and A. Mosleh, “Application of Integrated Methodology for Thermal Hydraulics Uncertainty Analysis (IMTHUA) on LOFT Test Facility Large Break Loss of Coolant Accident,” Proceedings of the 9th International Conference on Probabilistic Safety Assessment and Management (PSAM-9), Hong Kong, 2007.
  • M. Pourgol-Mohammad, A. Mosleh, and M. Modarres, “Methodology for Thermal-Hydraulic Code Structure Uncertainty Assessment,” Proceedings of the 9th International Conference for Probabilistic Safety Assessment and Management (PSAM-9), Hong Kong, 2007.
  • A. Roelen, R. Wever, A. Mosleh, and K. Groth, “Development and Validation of a Comprehensive Hybrid Causal Model for Safety Assessment and Management of Aviation Systems,” Proceedings of the 9th International Conference for Probabilistic Safety Assessment and Management (PSAM-9), Hong Kong, 2007.
  • D. Zhu, Y-H Chang, and A. Mosleh, “The Use of Distributed Computing for Dynamic PRA: The ADS Approach,” Proceedings of the 9th International Conference on Probabilistic Safety Assessment and Management (PSAM-9), Hong Kong, 2007.
  • D. Zhu, K. Groth, and A. Mosleh, “A PRA Software Platform for Hybrid Causal Logic Risk Models,” Proceedings of the 9th International Conference on Probabilistic Safety Assessment and Management (PSAM-9), Hong Kong, 2007.
  • M. Pourgol-Mohamad, M. Modarres, and A. Mosleh, “Modified Phenomena Identification and Ranking Table (PIRT) for Uncertainty Analysis,” Proceedings of the ICONE14 International Conference on Nuclear Engineering, Miami, FL, 2006.
  • M. Pourgol-Mohamad, A. Mosleh, and M. Modarres, “Treatment of Uncertainties; Output Updating in Complex Thermal-Hydraulics (TH) Computational Codes,” Proceedings of the ICONE14 International Conference on Nuclear Engineering, Miami, FL, 2006.
  • Y-H Chang and A. Mosleh, “Nuclear Power Plant Crew Problem Solving Behavior According to IDAC,” Proceedings of the 8th International Conference on Probabilistic Safety Assessment and Management (PSAM-8), New Orleans, LA, 2006.
  • Y-H Chang and A. Mosleh, “Performance Influencing Factors Modeling in the IDAC Model,” Proceedings of the 8th International Conference on Probabilistic Safety Assessment and Management (PSAM-8), New Orleans, LA, 2006.
  • F.J. Groen and A. Mosleh, “An Algorithm for the Quantification of Hybrid Causal Logic Models,” Proceedings of the 8th International Conference on Probabilistic Safety Assessment and Management (PSAM-8), New Orleans, LA, 2006.
  • Y. Hu, H. Nejad, D. Zhu, and A. Mosleh, “Solution of Phased-Mission Benchmark Problem Using the SIMPRA Dynamic PRA Methodology,” Proceedings of the 8th International Conference on Probabilistic Safety Assessment and Management (PSAM-8), New Orleans, LA, 2006.
  • A. Mosleh and Z. Mohaghegh, “A Causal Modeling Framework for Assessing Organizational Factors and their Impacts on Safety Performance,” Proceedings of the 8th International Conference on Probabilistic Safety Assessment and Management (PSAM-8), New Orleans, LA, 2006.
  • M. Pourgol-Mohamad, A. Mosleh, and M. Modarres, “A general thermal hydraulics uncertainty analysis methodology,” Proceedings of the 8th International Conference on Probabilistic Safety Assessment and Management (PSAM-8), New Orleans, LA, 2006.
  • D. Zhu, A. Mosleh, and C. Smidts, “Software Modelling In A Dynamic PRA Environment,” Proceedings of the 8th International Conference on Probabilistic Safety Assessment and Management (PSAM-8), New Orleans, LA, 2006.
  • F. J. Groen and E. L. Droguett, “Prior specification for multi-failure mode weibull reliability models,” Proceedings of the 2006 Reliability and Maintenance Symposium (RAMS 2006), Newport Beach, CA, 2006, pp. 201–207.
  • A. Jacopino, F.J. Groen, and A. Mosleh, “Modelling imperfect inspection and maintenance in defence aviation through Bayesian analysis of the KIJIMA type I general renewal process (GRP),” Proceedings of the 2006 Reliability and Maintenance Symposium (RAMS 2006), Newport Beach, CA, 2006, pp. 470–475.
  • S. W. Yates and A. Mosleh, “A Bayesian approach to reliability demonstration for aerospace systems,” Proceedings of the 2006 Reliability and Maintenance Symposium (RAMS 2006), Newport Beach, CA, 2006, pp. 611–617.
  • F.J. Groen and E. L. Droguett, “Competing failure mode modeling in a bayesian reliability assessment tool,” Proceedings of the 2005 Reliability and Maintenance Symposium (RAMS 2005), Alexandria, VA, 2005, pp. 393–397.
  • Y-H Chang, K. Almenas, A. Mosleh, and D. Bessette, “Thermal-Hydraulic Uncertainty Analysis in the Context of Pressurized Thermal Shock Risk Scenarios,” Proceedings of the 7th International Conference on Probabilistic Safety Assessment and Management (PSAM-7), Berlin, Germany, 2004.
  • Y-H Chang, A. Mosleh, and A. P. Macwan, “Insights from Analysis of Procedural Errors in Telecommunications Industry,” Proceedings of the 7th International Conference on Probabilistic Safety Assessment and Management (PSAM-7), Berlin, Germany, 2004.
  • E. L. Droguett, F. J. Groen, and A. Mosleh, “Bayesian Methodology for Reliability Assessment of Products under Development: Application to a Medical Diagnostic System,” Proceedings of the 7th International Conference on Probabilistic Safety Assessment and Management (PSAM-7), Berlin, Germany, 2004.
  • F. J. Groen, A. Mosleh, and E. L. Droguett, “Treatment of Partial Homogeneity in Population Variability Analysis of Data,” Proceedings of the 7th International Conference on Probabilistic Safety Assessment and Management (PSAM-7), Berlin, Germany, 2004.
  • Y. Hu, F.J. Groen, and A. Mosleh, “An Entropy-Based Exploration Strategy in Dynamic PRA,” Proceedings of the 7th International Conference on Probabilistic Safety Assessment and Management (PSAM-7), Berlin, Germany, 2004.
  • A. Mosleh, A. Dias, G. Eghbali, and K. Fazen, “An Integrated Framework for Identification, Classification, and Assessment of Aviation Systems Hazards,” Proceedings of the 7th International Conference on Probabilistic Safety Management and Assessment (PSAM-7), Berlin, Germany, 2004.
  • F.J. Groen, S. Jiang, A. Mosleh, and E. L. Droguett, “Reliability data collection and analysis system,” Proceedings of the 2004 Reliability and Maintenance Symposium (RAMS 2004), Los Angeles, CA, 2004, pp. 43–48.
  • A. Jacopino, F.J. Groen, and A. Mosleh, “Behavioural study of the general renewal process,” Proceedings of the 2004 Reliability and Maintenance Symposium (RAMS 2004), Los Angeles, CA, 2004, pp. 237–242.
  • F. J. Groen and E. L. Droguett, “Bayesian estimation of the variability of reliability measures,” Proceedings of the 2003 Reliability and Maintenance Symposium (RAMS 2003), Tampa, FL, 2003, pp. 182–187.
  • F.J. Groen and A. Mosleh, “A Comparison of Methods for Representing the Meaning of Uncertain Evidence,” Proceedings of the 6th International Conference on Probabilistic Safety Assessment and Management (PSAM-6), San Juan, PR, vol. 1, pp. 207–213.
  • F.J. Groen, C. Smidts, and A. Mosleh, “QRAS – The Quantitative Risk Assessment System,” Proceedings of the 2002 Reliability and Maintenance Symposium (RAMS 2002), Seattle, WA, 2002.
  • F.J. Groen, A. Mosleh, and C. Smidts, “Automated Modeling and Analysis of Common Cause Failure with QRAS,” Proceedings of the 20th International System Safety Conference, Denver, CO, 2002.
  • E. L. Droguett and A. Mosleh, “Assessment of Model Uncertainty - a Bayesian Approach,” Proceedings of the 2001 Annual Conference of the European Society for Reliability (ESREL 2001).
  • E. L. Droguett and A. Mosleh, “Methodology for the Treatment of Model Uncertainty - Applications to Fire Risk Models,” Proceedings of the 2001 Annual Conference of the European Society for Reliability (ESREL 2001), Torino, Italy, 2001.
  • F.J. Groen and A. Mosleh, “Principles of Uncertain Evidence in the Context of a Failure Rate Assessment Problem,” Proceedings of the 2001 Annual Conference of the European Society for Reliability (ESREL 2001), Torino, Italy, 2001.
  • Z. Tan, F.J. Groen, and A. Mosleh, “An Extension of the FMEA Technology for Identifying System Failures due to Interactions,” Proceedings of the 19th International System Safety Conference, Huntington AL, 2001. (Best Paper Award)
  • E. L. Droguett, A. Mosleh, F. Joglar, and F. Mowrer, “Methodology for the Treatment of Model Uncertainty: An Application to Fire Risk Models,” Proceedings of the 5th International Conference on Probabilistic Safety Assessment and Management (PSAM-5), Tokyo, Japan, 2000.
  • E. L. Droguett and A. Mosleh, “Methodology For The Treatment Of Model Uncertainty,” Proceedings of the 5th International Conference on Probabilistic Safety Assessment and Management (PSAM-5), Tokyo, Japan, 2000
  • E. L. Droguett and A. Mosleh, “Development of a Bayesian procedure to the power-Weibull model with nonconstant shape parameter,” Proceedings of the 1999 Annual Conference of the European Society for Reliability (ESREL 99), Munich, Germany, 1999.
  • E. L. Droguett and A. Mosleh, “On Models and Model Uncertainty,” Proceedings of the 1999 Annual Conference of the European Society for Reliability (ESREL 99), Munich, Germany, 1999.
  • F.J. Groen and A. Mosleh, “Behavior of weighted likelihood and weighted posterior methods for treatment of uncertain data,” Proceedings of the 1999 Annual Conference of the European Society for Reliability (ESREL 99), Munich, Germany, 1999.
  • F. J. Groen and A. Mosleh, “Taxonomy of X-ware failures,” Proceedings of the 1999 Annual Conference of the European Society for Reliability (ESREL 99), Munich, Germany, 1999.
  • N. Siu, E. L. Droguett, and A. Mosleh, “Model Uncertainty in Fire Risk Assessment,” Proceedings of the 1999 Annual Symposium of the Society of Fire Protection Engineers.
  • A. Mosleh, “Applying Human Reliability Techniques to Improve Procedural Errors in Telecommunication Systems,” Proceedings of the 1999 International Symposium on Communications Quality and Reliability (CQR), IEEE Communications Society, San Diego, CA, 1999.
  • D. Rasmuson, F.M. Marshall, A. Mosleh, and T.E. Wierman, “Insights about Emergency Diesel Generator Failures from the USNRC’s Common Cause Failure Database,” Proceedings of the ICONE7 International Conference on Nuclear Engineering, Tokyo, Japan, 1999.
  • Y-H Chang and A. Mosleh, “Dynamic PRA Using ADS with RELAP5 Code as Its Thermal Hydraulic Module,” Proceedings of the 4th International Conference on Probabilistic Safety Assessment and Management (PSAM-4), New York, NY, 1998, pp. 2468-2473
  • E. L. Droguett, A. Mosleh, and C. Smidts, “Identification and Quantification of Software Dependencies in Reliability Models,” Proceedings of the 4th International Conference on Probabilistic Safety Assessment and Management (PSAM-4), New York, NY, 1998, pp. 1319-1330.
  • F. M. Marshall, D. M. Rasmuson, and A. Mosleh, “Common Cause Failure Susceptibilities at Nuclear Power Plants,” Proceedings of the 4th International Conference on Probabilistic Safety Assessment (PSAM-4), New York, NY, 1998, pp. 213–220.
  • D. M. Rasmuson and A. Mosleh, “Uncertainty Considerations in Common Cause Failure Analysis,” Proceedings of the 4th International Conference on Probabilistic Safety Assessment and Management (PSAM-4), New York, NY, 1998, pp. 404-409.
  • D. M. Rasmuson, A. Mosleh, and F. M. Marshall, “Some General Insights from the USNRC’s Common Cause Failure Database,” Proceedings of the 4th International Conference on Probabilistic Safety Assessment and Management (PSAM-4), New York, NY, 1998, pp. 195-200.
  • P. J. Rutledge and A. Mosleh, “Prevention of Dependent Failures in Spacecraft,” Proceedings of the 4th Annual International Conference on Probabilistic Safety Assessment and Management (PSAM-4), New York, NY, 1998, pp. 393-398.
  • T. Shukri and A. Mosleh, “A Dynamic PRA Model, ADS-IDA: Its Advantages and Possible Applications,” Proceedings of the 4th International Conference on Probabilistic Safety Assessment and Management (PSAM-4), New York, NY, 1998, pp. 2667-2672.
  • A. Mosleh, E. Goldfeiz, and S. Shen, “The Omega-factor approach for modeling the influence of organizational factors in probabilistic safety assessment,” Proceedings of the 1997 IEEE Sixth Conference on Human Factors and Power Plants, Orlando, FL, 1997, pp. 9–18.
  • A. Mosleh, S. H. Shen, and T. Shukri, “Implementation of a Cognitive Human Reliability Model in Dynamic Probabilistic Risk Assessment of a Nuclear Power Plant (ADS-IDA),” Proceedings of the International Symposium on Artificial Intelligence, Robotics, and Intellectual Human Activity, Wako-shi, Saitama, Japan, 1997, pp. 117–125.
  • E. Schade, S.-H. Shen, and A. Mosleh, “Methodology for the Analysis of Human Error Probabilities,” Proceedings of the International Conference and Embedded Topical Meetings of the American Nuclear Society and the European Nuclear Society, Washington, DC, 1996.
  • S. Bell, K. Rudolph, R. J. Mulvihill, B. Bream, C. Smidts, A. Mosleh, S. Swaminathan, and J. Y. Van-Halle, “Application of Two Different Methods to Accident Probabilistic Analysis of the Cassini Mission,” Proceedings of the 3rd International Conference on Probabilistic Safety Assessment and Management (PSAM-III), Crete, 1996, vol. 2, pp. 1079–1084.
  • J. Julius, G. W. Parry, and A. Mosleh, “Procedure for the Analysis of Errors of Commission during Non-Power Modes of Operation,” Proceedings of the 3rd International Conference on Probabilistic Safety Assessment and Management (PSAM-III), Crete, 1996, vol. 1, pp. 146–151.
  • A. Mosleh and E. Goldfeiz, “Methodology for Explicit Inclusion of Organizational Factors into PSAs,” Proceedings of the 3rd International Conference on Probabilistic Safety Assessment and Management (PSAM-III), Crete, 1996, vol. 2, pp. 916–921.
  • F. M. Marshall, A. Mosleh, and D. Rasmuson, “Common-Cause Failure Data Collection and Analysis System Results,” Proceedings of the 1996 International Topical Meeting on Probability, Reliability, and Safety Assessment (PSA ’96), Park City, UT, 1996, pp. 769-776.
  • A. Mosleh, “Prospects for Standardizing Data Analysis in HRA,” Proceedings of the 1996 International Topical Meeting on Probability, Reliability, and Safety Assessment (PSA ’96), Park City, UT, 1996, pp. 1108-1111.
  • A. Mosleh, C. Smidts, and S-H. Shen, “Modeling Cognition Dynamics and Its Applications to Human Reliability Analysis,” Proceedings of the International Conference and Embedded Topical Meetings of the American Nuclear Society and the European Nuclear Society, Washington DC, 1996.
  • E. Goldfeiz and A. Mosleh, “A Model for Analysis of Organizational Factors in Probabilistic Risk Assessment of Nuclear Power Plants,” Proceedings of the International Topical Meeting on Computer-Based Human Support Systems: Technology, Methods, and Future, Philadelphia, PA, 1995.
  • S-H Shen, A. Mosleh, and C. Smidts, “Application of a Model-Based Human Error Taxonomy to the Analysis of Reactor Operating Events,” Proceedings of the International Topical Meeting on Computer-Based Human Support Systems: Technology, Methods, and Future, Philadelphia, PA, 1995.
  • K. J. Farquhar and A. Mosleh, “An approach to quantifying reliability-growth effectiveness,” Proceedings of the 1995 Reliability and Maintenance Symposium (RAMS 1995), Washington, DC, 1995, pp. 166–173.
  • P. J. Rutledge and A. Mosleh, “Dependent-failures in spacecraft: Root causes, coupling factors, defenses, and design implications,” Proceedings of the 1995 Reliability and Maintenance Symposium (RAMS 1995), Washington DC, 1995, pp. 337–342.
  • C. Smidts, S. H. Shen, and A. Mosleh, “A Taxonomy and Root Cause Analysis of Human Cognitive Behavior Based on a Cognitive Model,” Proceedings of the 1995 Reliability and Maintenance Symposium (RAMS 1995), Washington, DC, 1995, pp. 303–314.
  • S.B. Guarro, J. Swider, R.J. Mulvihill, A. Mosleh, and K. Rudolph, Probabilistic Risk Assessment for the Cassini Space Mission,” Proceedings of the ASME 1994 International Mechanical Engineering Congress.
  • K. S. Hsueh and A. Mosleh, “A Simulation Study of Errors of Commission in Nuclear Accidents,” Proceedings of the 2nd International Conference on Probabilistic Safety Assessment and Management (PSAM-II), San Diego, CA, 1994.
  • F. Hubbard and A. Mosleh, “CCDAT, an automated tool for common cause failure data analysis and parameter estimation,” Proceedings of the 2nd International Conference on Probabilistic Safety Assessment and Management (PSAM-II), San Diego, CA, 1994.
  • F. Hubbard and A. Mosleh, “The Search for Dependencies or How Two Current Design Nuclear Power Plants Produce IPE Results Three Orders of Magnitude Different,” Proceedings of the 2nd International Conference on Probabilistic Safety Assessment and Management (PSAM-II), San Diego, CA, 1994.
  • A. Macwan, F.J. Groen, P.A. Wieringa, and A. Mosleh, “HIT-SIM: A Computer Code to Analyze Errors of Commission for Probabilistic Risk Assessment,” Proceedings of the 2nd International Conference on Probabilistic Safety Assessment and Management (PSAM-II), San Diego, CA, 1994.
  • A. Mosleh, “On the Objectivity of Subjective Theory of Probability for PSA Applications,” Proceedings of the 2nd International Conference on Probabilistic Safety Assessment and Management (PSAM-II), San Diego, CA, 1994.
  • G. W. Parry, J. A. Julius, E. Jorgenson, and A. Mosleh, “A Procedure for the Analysis of Errors of Commission in a PSA,” Proceedings of the 2nd International Conference on Probabilistic Safety Assessment and Management (PSAM-II), San Diego, CA, 1994.
  • D. M. Rasmuson, A. Mosleh, F. M. Marshall, and K. Kvarfordt, “Development of a Database of Common Cause Failure Events at U.S. Nuclear Power Plants,” Proceedings of the 2nd International Conference on Probabilistic Safety Assessment and Management (PSAM-II), San Diego, CA, 1994.
  • S. H. Shen, C. Smidts, and A. Mosleh, “Elements of a Model for Operator Problem Solving and Decision Making in Abnormal Conditions,” Proceedings of the 2nd International Conference on Probabilistic Safety Assessment and Management (PSAM-II), San Diego, CA, 1994.
  • F. Hubbard and A. Mosleh, “Effects of Dependencies on Component Importances Derived from IPE Results,” Proceedings of the 1994 Winter Meeting of the American Nuclear Society (ANS), Washington, DC, 1994.
  • S. Bell, K. Rudolph, B. Bream, R. J. Mulvihill, C. Smidts, A. Mosleh, S. Swaminathan, and J. Y. Van-Halle, “A Probabilistic Risk Assessment for the Cassini Space Mission,” Proceedings of the 1994 International Mechanical Engineering Congress and Exposition, Chicago, IL, 1994.
  • K. S. Hsueh and A. Mosleh, “ADS: Accident Dynamic Simulator for Nuclear Power Plant Accident Analysis,” Proceedings of the Simulation Multi-Conference of the Society for Computer Simulation, Arlington, VA, 1993.
  • A. Mosleh, G. W. Parry, and A. F. Zikria, “An Approach to the Parameterization of Judgement in the Analysis of Common Cause Failure Data,” Proceedings of the ANS International Topical Meeting on Probabilistic Safety Assessment, Clearwater Beach, FL, 1993.
  • K. S. Hsueh and A. Mosleh, “Dynamic Accident Sequence Simulator for Probabilistic Safety Assessment,” Proceedings of the ANS International Topical Meeting on Probabilistic Safety Assessment, Clearwater Beach, FL, 1993.
  • A. P. Macwan and A. Mosleh, “A Simulation-Based Approach to Modeling Errors of Commission During Nuclear Power Plant Accidents: Application to PRA,” Proceedings of the ANS International Topical Meeting on Probabilistic Safety Assessment, Clearwater Beach, FL, 1993.
  • M. Modarres, A. Mosleh, and J. Wreathall, “Framework for Assessing the Influence of Organization on Plant Safety,” Proceedings of the 1992 Annual Meeting of the American Nuclear Society (ANS), Boston, MA, 1992.
  • J. H. Zamanali, F. Hubbard, A. Mosleh, and M. A. Waller, “Evolutionary Enhancement of the SLIM-MAUD Method of Estimating Human Error Rates,” Proceedings of the 1992 Annual Meeting of the American Nuclear Society (ANS), Boston, MA, 1992.
  • V. M. Bier and A. Mosleh, “More New Insights Gained from Accident Precursor Data,” Proceedings of the 1992 Annual Meeting of the American Nuclear Society (ANS), Boston, MA, 1992.
  • A. Macwan, K. S. Hsueh, and A. Mosleh, “An Approach to Modelling Operator Behaviour in Integrated Dynamic Accident Sequence Analysis,” Proceedings of the International Symposium on the Use of Probabilistic Safety Assessment for Operational Safety, PSA ’91, Vienna, Austria, 1991.
  • A. Mosleh and A. Afzali, “Coupling Mechanism Classification for Common Cause Failure Analysis,” Proceedings of the International Symposium on the Use of Probabilistic Safety Assessment for Operational Safety, PSA ’91, Vienna, Austria, 1991.
  • N. Grossman, M. Modarres, and A. Mosleh, “Assessing Plant Safety Performance Using Direct and Indirect Indicators,” Proceedings of the 11th International Conference on Structural Mechanics in Reactor Technology, Tokyo, Japan, 1991.
  • A. Mosleh, N. Grossman, and M. Modarres, “A Method for Evaluation and Integration of Safety Performance Indicators,” Proceedings of the 1st International Conference on Probabilistic Safety Assessment and Management (PSAM-1), Beverly Hills, CA, 1991.
  • A. Mosleh and S. Kaplan, “A Bayesian Method for Estimation of Aircraft Crash Frequency,” Proceedings of the 1st International Conference on Probabilistic Safety Assessment and Management (PSAM-1), Beverly Hills, CA, 1991.
  • F. Zikria and A. Mosleh, “Unavailability of Systems Subject to Time-Delay Common Cause Failures,” Proceedings of the 1st International Conference on Probabilistic Safety Assessment and Management (PSAM-1), Beverly Hills, CA, 1991.
  • A. Mosleh, “A Framework for Computer Security Risk Management,” Proceedings of the 3rd Annual Computer Security Model Builders Workshop, Santa Fe, NM, 1990.
  • A. Mosleh and V.M. Bier, "On the Optimum Level of Decomposition in Estimation: Some Basic Principles and Examples," Proceedings of the 5th International Conference on the Foundations and Applications of Utility, Risk, and Decision Theories, Duke University, Durham, NC, 1990.
  • F. Zikria and A. Mosleh, “A Parametric Model for Time-Delay Common Cause Failures,” Proceedings of the 1990 Annual Meeting of the American Nuclear Society, Nashville, TN, 1990.
  • A. Mosleh, “Mapping Between a Risk Management Methodology and the Proposed Conceptual Framework,” in Proceedings of the Second International Computer Security Risk Modeling Workshop, Ottawa, ON, 1989.
  • A. Mosleh, “Interaction Between Model and Data in Common Cause Failure Analysis,” Proceedings of the 10th International Conference on Structural Mechanics in Reactor Technology, Anaheim, CA, 1989.
  • V.M. Bier and A. Mosleh, “The Analysis of Accident Precursors and Near Misses: Implications for Risk Assessment and Risk Management,” Proceedings of the 1989 International Topical Meeting on Probability, Reliability, and Safety Assessment (PSA ’89), Pittsburgh, PA, 1989, pp. 1125-1130 (Best Paper).
  • A. Mosleh, K. N. Fleming, G. W. Parry, H. M. Paula, D. H. Worledge, and D. M. Rasmuson, “Methodological Advancements in Procedures for Common Cause Failure Analysis,” Proceedings of the International Topical Meeting on Probability, Reliability, and Safety Assessment PSA ’89, Pittsburgh, PA, 1989.
  • A. Mosleh and N. Siu, “A multi-parameter common cause failure model,” Proceedings of the 9th International Conference on Structural Mechanics in Reactor Technology, Lausanne, Switzerland, 1987, vol. M, pp. 147–152.
  • A. Mosleh and N. Siu, “On the Use of Uncertain Data in Common Cause Failure Analysis,” Proceedings of the International ENS/ANS Topical Conference on Probabilistic Safety Assessment and Risk Management, Zurich, Switzerland, 1987.
  • A. Mosleh, V. M. Bier, and G. Apostolakis, “The Elicitation and Use of Expert Opinion in Risk Assessment: A Critical Review,” Proceedings of the PSA ’87, International Topical Conference on Probabilistic Safety Assessment and Risk Management, European Nuclear Society, Zurich, Switzerland, 1987.
  • N. Siu and A. Mosleh, “Current Trends in Nuclear PRA Dependent Events Analysis,” Proceedings of the First ASME Forum on Risk Analysis, Anaheim, CA, 1986.
  • A. Mosleh and G. Apostolakis, “The Development of a Generic Data Base for Failure Rates,” Proceedings of the International ANS/ENS Topical Meeting on Probabilistic Safety Methods and Applications, San Francisco, CA, USA, 1985.
  • A. Mosleh, “Model Uncertainty and Its Implications in Probabilistic Risk Assessment,” Proceedings of the 8th International Conference on Structural Mechanics in Reactor Technology, Brussels, Belgium, 1985.
  • K. N. Fleming and A. Mosleh, “Common Cause Data Analysis and Implications in System Modeling,” Proceedings of the International Topical Meeting on Probabilistic Safety Methods and Applications, San Francisco, CA, 1985.
  • K. N. Fleming, A. Mosleh, and D. L. Acey, “Event Classification and Systems Modeling of Common Cause Failures,” Proceedings of the 1984 Annual Meeting of the American Nuclear Society (ANS), New Orleans, LA, 1984, pp. 519-521.
  • A. Mosleh, “A Bayesian Approach to the Assessment of Risk for Computer and Communication Systems,” Proceedings of the Seventh Annual DoD-NBS Computer Security Conference, Washington, DC, 1984.
  • A. Mosleh and G. Apostolakis, “Combining Various Types of Data in Estimating Failure Rate Distributions,” in Transactions, American Nuclear Society Annual Meeting, San Francisco, CA, 1983.
  • A. Mosleh and G. Apostolakis, “A Method for Estimating Fragility Curves using Expert Opinions,” Proceedings of the 7th International Conference on Structural Mechanics in Reactor Technology, Chicago, IL, 1983.
  • G. Apostolakis and A. Mosleh, “A Study on the Quantification of Judgment,” Proceedings of the ANS/ENS Topical Meeting on Probabilistic Analysis of Nuclear Safety, Newport Beach, CA, 1978.

Tarannom Parhizkar

Tarannom Parhizkar
Research Scientist

Ph.D. Sharif University of Technology
M.S. Sharif University of Technology
B.S. K.N. Toosi University of Technology

Dr. Parhizkar’s specialties are modeling, prognostic health monitoring, and operation optimization of complex systems. She was formerly a Postdoctoral fellow at the Department of Marine Technology, Norwegian University of Science and Technology (NTNU), working on dynamic probabilistic risk assessment and risk-based decision support tools for complex systems. She received her Ph.D. and M.S. in Energy Systems Engineering from Sharif University of Technology. In her Ph.D. work she focused on optimizing machine learning methods to model complex energy systems.

Wadie Chalgham

Wadie Chalgham
Research Scientist

Ph.D. University of California, Los Angeles
M.S. University of California, Los Angeles
M.S. University of Louisiana
B.S. University of Louisiana

Dr. Wadie Chalgham is a Research Scientist at the University of California, Los Angeles (UCLA). He is conducting research at UCLA’s B. John Garrick Institute for the Risk Sciences where he is the lead developer of the Pipeline Health Monitoring and Management project where the predictive physics of failure and system-level pipeline health monitoring and assessment models will be implemented.

Dr. Chalgham obtained his B.S. and his M.S. in Petroleum Engineering with a 4.0 GPA in both degrees. In addition, he has another M.S. and a Ph.D. in Mechanical and Aerospace Engineering with a specialization in Design, Robotics, and Manufacturing from UCLA.

Moreover, he was featured in Top 10 Professors at UCLA when he was teaching in the department of French and Francophone Studies at UCLA.

Furthermore, he holds 4 patents and recently published a US patent about a device and method for detecting leaks and healing pipelines.

Dr. Chalgham’s work has gained other recognitions, including winning the Audience Choice Award at UCLA's 2020 prestigious Grad Slam competition on March 5th at the California Nano-Systems Institute (CNSI). Grad Slam is a UC- wide competition that showcases and awards the best research presentations by graduate students from all departments. His presentation was on “Smart Pipeline Leak Detection and Response System.”

Also, he is the Best Paper Competition winner of the 2020 ASME SERAD (Safety Engineering, Risk and Reliability Analysis Division) Student Safety Innovation Challenge Contest for the paper: ``Sensor Placement Optimization based on Dynamic Bayesian Network Corrosion Prediction Model.” The paper offers a novel approach for identifying optimal sensor network layout to help oil and gas pipeline operators make risk-informed decisions to enhance pipeline system integrity management through optimal mitigation actions. 

His research publications can be found here.

Marilia Ramos

Marilia Ramos
Research Scientist

Ph.D. Federal University of Pernambuco
M.S. Federal University of Parnambuco
B.S. Federal University of Parnambuco

Dr. Marilia holds a Ph.D. in Chemical Engineering with expertise on Human Reliability applied to oil and gas operations from the Federal University of Pernambuco, Brazil. She has extensive experience on Quantitative Risk Assessment of oil refineries and pipelines operations, in particular modeling and quantification of consequences related to flammable/explosive and toxic substances.

She is a former Postdoctoral research fellow of the Department of Marine Technology, Norwegian University of Science and Technology (NTNU), where she worked at the Marine Technology Risk, Safety and Asset Management Group and focused on autonomous vessels risk assessment and human-system interaction modeling.

Her current research focuses on safety of autonomous systems, advanced Human Reliability Analysis methods, and human-system interaction in complex systems.

List of publications

Enrique López Droguett

Enrique López Droguett
Professor
Civil and Environmental Engineering

Ph.D. University of Maryland
M.S. University of Maryland M.S. Federal University of Bahia
B.S. Federal University of Bahia

Dr. Enrique López Droguett is a Professor in the Civil & Environmental Engineering Department and the Garrick Institute for the Risk Sciences at the University of California, Los Angeles (UCLA), USA. He is also an Associate Editor for both the Journal of Risk and Reliability, and the International Journal of Reliability and Safety. Also, he serves in the Board of Directors of the International Association for Probabilistic Safety Assessment and Management (IAPSAM). Prof. López Droguett conducts research on Bayesian inference and artificial intelligence supported digital twins and prognostics and health management based on physics informed deep learning for reliability, risk, and safety assessment of structural and mechanical systems. His most recent focus has been on quantum computing and quantum machine learning for developing solutions for risk and reliability quantification and energy efficiency of complex systems, particularly those involved in renewable energy production. He has led many major studies on these topics for a broad range of industries, including oil and gas, nuclear energy, defense, civil aviation, mining, renewable and hydro energy production and distribution networks. Prof. López Droguett has authored more than 250 papers in archival journals and conference proceedings.

Javier Colin

Javier Colin
Programmer
B.A. UCLA




Hi, my name is Javier, UCLA alumni. There's no better feeling than solving the most complex problems the world has to offer. I am currently developing and maintaining the apps here at the Institute. In my free time depending on the season, you'll either find me snowboarding or riding my bike.

Mohammad Pishahang

Mohammad Pishahang
PhD Student

Majoring in Civil and Environmental Engineering

Mohammad Pishahang is a PhD student of Civil Engineering at UCLA. He studied BSc and MSc of Mining Engineering at University of Tehran, and MSc of Mechanical Engineering at University of Chile. Mohammad's research is focused on natural hazards management. More specifically, his PhD thesis is on wildfire safe egress planning. During his spare time, Mohammad creates web applications, learns new programming libraries, and reads tech trends.

Uzias Rivera

Uzias Rivera
Programmer
B.S. CSU Polytechnic Pomona




A full time application programmer at GIRS. He has contributed to the Fire Risk Application by assisting with the data analysis and fully integrating various features like the mitigation action tool. His years of experience involve database and system design along with building and deploying scalable web apps.

Zhijiong Cao

Zhijiong Cao
PhD Student

Majoring in Geography

Zhijiong Cao is a first-year doctoral student in Department of Geography at the University of California, Los Angeles. She received her master's degree in Department of Atmospheric and Oceanic Sciences at UCLA. Her research interests are land-atmosphere interaction and soil moisture-carbon-weather interaction modeling.

Contact: czj9763@g.ucla.edu