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August 26, 2016


2018
 J.P. Senecal and W. Ji, “Development of an Efficient Tightly Coupled Method for Multiphysics Reactor Transient Analysis,” Progress in Nuclear Energy, Vol. 103, pp. 3344 (2018).
[online]

2017
 J.P. Senecal and W. Ji, “Approaches for Mitigating OverSolving in Multiphysics Simulations”, International Journal for Numerical Methods in Engineering Vol. 112, pp. 503528 (2017). [online]
 J.P. Senecal and W. Ji, “Addressing OverSolving in Multiphysics Codes with Nested Solvers”, ANS Annual Meeting 2017, San Francisco, CA (2017).
 M.D. Eklund, M. Dupont, P.F. Caracappa, W. Ji, “Neutronics Simulations of the RPI Walthousen Reactor Critical Facility (RCF) Using ProteusSN”, ANS Winter Meeting 2017, Washington, D.C. (2017).
 M. Dupont, M.D. Eklund, P.F. Caracappa, W. Ji, “Design of Neutronics and Thermal Hydraulics Coupling Critical Experiments”, ANS Winter Meeting 2017, Washington, D.C. (2017).
 C.G. Morrison and W. Ji, “Improving Prompt Temperature Feedback By Stimulating Doppler Broadening in Heterogeneous Composite Nuclear Fuel Forms,” Annals of Nuclear Energy, accepted (2017)

2016
 C.G. Morrison, W. Ji, and J.P. Senecal, “Coupled Neutronics and Heat Transfer in Accident Tolerant Composite Matrix Nuclear Fuels”, Transactions of the American Nuclear Society PHYSOR, Sun Valley, ID (2016).
 A.T. Pavlou, W. Ji, and F.B. Brown, “Verification of the OntheFly Thermal Scattering Sampling Method for Bound Hydrogen in Light Water”, Transactions of the American Nuclear Society PHYSOR, Sun Valley, ID (2016).
 J.P. Senecal and W. Ji, “A Novel Tightly Coupled Method for Reactor Transient Simulations”, Transactions of the American Nuclear Society PHYSOR, Sun Valley, ID (2016).
 M. Dupont, M.D. Eklund, P.F. Caracappa, W. Ji, “Development of Critical Experiments to Benchmark Moderator Temperature Reactivity Worth”, ANS Winter Meeting 2016, Las Vegas, NV (2016).
 M.D. Eklund, M. Dupont, P.F. Caracappa, W. Ji, “Computational Modeling, Simulation and Analysis of the RPI Walthousen Reactor Critical Facility (RCF)”, ANS Winter Meeting 2016, Las Vegas, NV (2016).
 E.N. Pusateri, H.E. Morris, E.M. Nelson, and W. Ji, “Comparison of Equilibrium Ohmic and NonEquilibrium Electron Swarm Models for Monitoring Conduction Electron Evolution in High Altitude EMP Calculations,” Journal of Geophysical Research: Atmospheres, Vol. 121, pp. 11,88411,899 (2016). [online]
 A.T. Pavlou, W. Ji, and F.B. Brown, “Implementation and Testing of the OntheFly Thermal Scattering Monte Carlo Sampling Method for Graphite and Light Water in MCNP6,” Annals of Nuclear Energy, Vol. 91, pp. 111126 (2016). [online]
 A.T. Pavlou and W. Ji, “PhononBased Mesh Optimization for the Monte Carlo OntheFly Thermal Scattering Temperature Fit Coefficients,” Nuclear Engineering and Design, Vol. 302B, pp. 7080 (2016). [online]

2015
 A.T. Pavlou, W. Ji, F.B. Brown, “Implementation of a Least Squares Temperature Fit of the Thermal Scattering Law in MCNP6″, Proceedings of the Joint International Conference on Mathematics and Computation (M&C), Supercomputing in Nuclear Applications (SNA) and the Monte Carlo (MC) Method, Nashville, TN (2015).
 A.T. Pavlou, W. Ji, “A Study of the Frequency Spectrum of Thermal Excitations for OntheFly Monte Carlo Thermal Scattering Sampling”, Transactions of the American Nuclear Society Student Conference at Texas A&M University, College Station, TX (2015).
 J.P. Senecal and W. Ji, “Comparison of Multiphysics Boundary Value Problem Coupling Strategies in MOOSE”, Transactions of the American Nuclear Society Student Conference at Texas A&M University, College Station, TX (2015).
 E. N. Pusateri, H. E. Morris, E. M. Nelson, and W. Ji., “Determination of Equilibrium Electron Temperature and Times Using an Electron Swarm Model with BOLSIG+ Calculated Collision Frequencies and Rate Coefficients”, Journal of Geophysical Research: Atmospheres, 2015. (2015).
 A.T. Pavlou and W. Ji, “The Temperature Zoning Method for OntheFly Thermal Scattering Sampling Procedure”, ANS Winter Meeting 2015, Washington, D.C. (2015).
 J.P. Senecal and W. Ji, “Comparison of Novel Coupling Methods in MOOSE”, ANS Winter Meeting 2015, Washington, D.C. (2015).
 J. Ortensi, M. Ellis, Y. Wang, H.R. Hammer, J.P. Senecal, F.N. Gleicher, S. Schunert, M.D. DeHart, K. Smith, and R. Martineau, “Solution of the Hot Zero Power BEAVRS Using a PinCell Homogenized Model”, ANS Winter Meeting 2015, Washington, D.C. (2015).

2014
 A.T. Pavlou, W. Ji, “A New OntheFly Sampling Method at Thermal Energies for Monte Carlo Codes”, ANS Winter Meeting 2014, Anaheim, CA (2014).
 E. N. Pusateri, H.E. Morris, and W. Ji, “Analysis of Electron Evolution in Air using Updated Cross Section Data”, Bulletin of the American Physical Society, APS:DPP Conference Abstract, LAUR1425207, New Orleans, LA (2014).
 E. N. Pusateri, H.E. Morris, “Determination of Equilibrium Electron Temperature and Time using an Electron Swarm Model with Updated Collision Frequencies and Rate Coefficients”, DOE/LANL Sponsored Technical Report LAUR1429015, Los Alamos, NM (2014).
 A.T. Pavlou, F.B. Brown, W. Ji, “A New OntheFly Sampling Method for Incoherent Inelastic Thermal Neutron Scattering Data in MCNP6″, Los Alamos National Laboratory Report LAUR1426856 (2014).
 A.T. Pavlou, W. Ji, “A Temperature Dependence Study of Alpha/Beta Cumulative Distribution Functions Based on S(α,β) Data”, ANS Annual Meeting 2014, Reno, NV (2014).
 A.T. Pavlou, W. Ji, “OntheFly Sampling of TemperatureDependent Thermal Neutron Scattering Data for Monte Carlo Simulations”, Annals of Nuclear Energy, Vol. 71, pp. 411426 (2014).
 A.T. Pavlou, M. Wart, W. Ji, T. H. Trumbull, “OntheFly Sampling of Thermal Scattering S(α,β,T) Data for Monte Carlo Codes”, International Congress on Advances in Nuclear Power Plants (ICAPP) 2014, Charlotte, North Carolina (2014).
 A.T. Pavlou, W. Ji, “A Temperature Dependence Study of Alpha/Beta Cumulative Distribution Functions Based on S(α,β) Data”, ANS Student Conference 2014, State College, PA (2014).

2013
 Xu, X. G., Tianyu Liu, Lin Su, Xining Du, Matthew Riblett, W. Ji and F. B. Brown, “An Update of ARCHER, a Monte Carlo Radiation Transport Software Testbed for Emerging Hardware Such as GPUs,” Trans. Am. Nucl. Soc., 108, 433434 (2013) [pdf]
 Li, Y. and W. Ji, “Stability and Convergence Analysis of a Dynamicsbased Collective Method for Random Sphere Packing,” Journal of Computational Physics, 250, 373287 (2013) [preprint] [online]
 Li, Y. and W. Ji, “Convergence Analysis of a Heuristic Collective Sphere Packing Algorithm,” International Journal of Applied Nonlinear Science, 2013 [preprint] [online]
 Peng Q., C. Liang, W. Ji, and S. De, “A Firstprinciples Study of the Mechanical Properties of gGeC,” Mechanics of Materials, 64, 135141 (2013) [online]
 Liang, C., and W. Ji, “A Neutronic Feasibility Study of AP1000 Design Loaded with Fully Ceramic MicroEncapsulated Fuel,” Proceedings of International Conference on Mathematics and Computational Methods Applied to Nuclear Science & Engineering (M&C 2013), Sun Valley, Idaho, USA, May 59, 2013, on CDROM, pp.15221533, American Nuclear Society, LaGrange Park, IL (2013) [pdf]
 Liang, C., A. T. Pavlou, and W. Ji, “The Impact of Fuel Particle Size Distribution on Neutron Transport in Stochastic Media,” Proceedings of International Conference on Mathematics and Computational Methods Applied to Nuclear Science & Engineering (M&C 2013), Sun Valley, Idaho, USA, May 59, 2013, on CDROM, pp.22792290, American Nuclear Society, LaGrange Park, IL (2013) [pdf]
 Li, Y., and W. Ji, “Contact Detection Acceleration in Pebble Flow Simulation for Pebble Bed Reactor Systems,” Proceedings of International Conference on Mathematics and Computational Methods Applied to Nuclear Science & Engineering (M&C 2013), Sun Valley, Idaho, USA, May 59, 2013, on CDROM, pp.16991708, American Nuclear Society, LaGrange Park, IL (2013) [pdf]
 Liu, T., X. Du, W. Ji, and X. G. Xu, “Development of GPUBased Monte Carlo Code for Fast CT Imaging Dose Calculation on CUDA Fermi Architecture,” Proceedings of International Conference on Mathematics and Computational Methods Applied to Nuclear Science & Engineering (M&C 2013), Sun Valley, Idaho, USA, May 59, 2013, on CDROM, pp.11991210, American Nuclear Society, LaGrange Park, IL (2013) [pdf]
 Du, X., T. Liu, W. Ji, X. G. Xu, and F. B. Brown, “Evaluation of Vectorized Monte Carlo Algorithms on GPUs for a Neutron Eigenvalue Problem,” Proceedings of International Conference on Mathematics and Computational Methods Applied to Nuclear Science & Engineering (M&C 2013), Sun Valley, Idaho, USA, May 59, 2013, on CDROM, pp.25132522, American Nuclear Society, LaGrange Park, IL (2013) [pdf]
 Li, Y. and W. Ji, “Acceleration of Coupled Granular Flow and Fluid Flow Simulations in Pebble Bed Energy Systems,” Nuclear Engineering and Design, 258, 275283 (2013) [preprint] [online]
 Peng, Q., W. Ji, H.C. Huang and S. De, “Axial Ratio Dependence of the Stability of SelfInterstitials in HCP Structures,” Journal of Nuclear Materials, 437, 293296 (2013) [online]
 Peng, Q., X. Chen, W. Ji, and S. De, “Chemically Tuning Mechanics of Graphene by BN,” Advanced Engineering Materials, 15, 718727 (2013) [online]
 Peng, Q., W. Ji, and S. De, “FirstPrinciples Study of the Effects of Mechanical Strains on the Radiation Hardness of Hexagonal Boron Nitride Monolayers,” Nanoscale, 5, 695703 (2013) [online]
 Liang, C., W. Ji, and F.B. Brown, “Chord Length Sampling Method for Analyzing Stochastic Distribution of Fuel Particles in Continuous Energy Simulations,” Annals of Nuclear Energy, 53, 140146 (2013) [preprint] [online]
 Li, Y. and W. Ji, “Pebble Flow and Coolant Flow Analysis Based on a Fully Coupled MultiPhysics Model,” Nuclear Science and Engineering, 173, 150162 (2013). [preprint] [online]
 Peng, Q., C. Liang, W. Ji, and S. De, “Mechanical Properties of gGaN: A First Principles Study,” Applied Physics A , (2013) doi: 10.1007/s0033901375514 [online]
 Peng, Q., C. Liang, W. Ji, and S. De, “A Theoretical Analysis of the Effect of the Hydrogenation of Graphene to Graphane on Its Mechanical Properties,” Physical Chemistry Chemical Physics , 15, 20032011 (2013) [online]
 Peng, Q., C. Liang, W. Ji, and S. De, “A First Principles Investigation of the Mechanical Properties of gZnO: the Graphenelike Hexagonal Zinc Oxide Monolayer,” Computational Materials Science , 68, 320324 (2013) [online]
 Tierney, Heidi E., Pusateri, Elise N., Nelson, Eric M., Holmes, Richard L., “Progress on the Development of an Electron Swarm Model for
Use in CHAPLA”, HEART Poster (2013), Albuquerque NM.
 Pusateri, E., & Tierney, H., “Improving upon an Electron Swarm Model for Investigating Electron Equilibrium Using the Boltzmann Equation.”, LANL Student Symposium (2013), Los Alamos, New Mexico, U.S.: Los Alamos National Lab.

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2012


 Peng, Q., C. Liang, W. Ji, and S. De, “A First Principles Investigation of Mechanical Properties of gTlN,” Modeling and Numerical Simulation of Material Science , 2, 7684 (2012) [preprint] [online]
 Peng, Q., W. Ji, and S. De, “Mechanical Properties of Graphyne Monolayer: A FirstPrinciples Study,” Physical Chemistry Chemical Physics, 14, 1338513391 (2012) [preprint] [online]
 Burke, T., B. R. Betzler, J. C. Lee, W. R. Martin, A. Pavlou and W. Ji, Y. Li, “A Constrained Sampling Methodology for TRISO Microspheres with Continuous Distributions of Diameters,” Trans. Am. Nucl. Soc., 107, 516518 (2012). [pdf]
 Liang, C. and W. Ji, “A Novel Extension of Chord Length Sampling Method for TRISOType Applications,” Trans. Am. Nucl. Soc., 107, 551553 (2012). [pdf]
 Pusateri, E.N. and W. Ji, “A New Analytical Model to Evaluate Dancoff Factors in Stochastic Media,” Trans. Am. Nucl. Soc., 107, 554556 (2012). [pdf]
 Peng, Q., W. Ji, H.C. Huang, and S. De, “Stability of Selfinterstitial Atoms in hcpZr,” Journal of Nuclear Material, 429, 233236 (2012). [preprint] [online]
 Li, Y. and W. Ji, “A Collective Dynamicsbased Method for Initial Pebble Packing in Pebble Flow Simulation,” Nuclear Engineering and Design, 250, 229236 (2012) [preprint] [online]
 Peng, Q., A.R. Zamiri, W. Ji, and S. De, “Elastic Properties of Hybrid Graphene/Boron Nitride Monolayer,” Acta Mechanica, 223, 25912596 (2012). [preprint] [online]
 Liang, C., Y. Li, and W. Ji, “Application of Chord Length Sampling to Analyzing Reactor Systems with Multitype Multisize Fuel Particles,” Trans. Am. Nucl. Soc., 106, 339341 (2012). [pdf]
 Liu, T., L. Su, A. Ding, W. Ji, C. Carothers, X. G. Xu and F. B. Brown, “GPU/CUDAReady Parallel Monte Carlo Codes for Reactor Analysis and Other Applications,” Trans. Am. Nucl. Soc., 106, 378379 (2012). [pdf]
 Liang, C., W. Ji and F.B. Brown, “Chord Length Sampling Method for Analyzing VHTR Unit Cells in Continuous Energy Simulations,” Proceedings of International Topical Meeting on Advances in Reactor Physics (PHYSOR 2012), Knoxville, Tennessee, USA, April 1520, 2012. [pdf]
 Li, Y. and W. Ji, “Stability and Convergence Analysis of the QuasiDynamics Method for Initial Pebble Packing,” Proceedings of International Topical Meeting on Advances in Reactor Physics (PHYSOR 2012), Knoxville, Tennessee, USA, April 1520, 2012. [pdf]
 Liang, C. and W. Ji, “Optimization of Monte Carlo Transport Simulations in Stochastic Media,” Proceedings of International Topical Meeting on Advances in Reactor Physics (PHYSOR 2012), Knoxville, Tennessee, USA, April 1520, 2012. [pdf]
 Li, Y. and W. Ji, “A Simplified DEMCFD Approach for Pebble Bed Reactor Simulations,” Proceedings of International Topical Meeting on Advances in Reactor Physics (PHYSOR 2012), Knoxville, Tennessee, USA, April 1520, 2012. [pdf]
 Liu, T., A. Ding, W. Ji, X. G. Xu, C. Carothers, and F.B. Brown, “A Monte Carlo Neutron Transport Code for Eigenvalue Calculations on a DualGPU System and CUDA Environment,” Proceedings of International Topical Meeting on Advances in Reactor Physics (PHYSOR 2012), Knoxville, Tennessee, USA, April 1520, 2012. [pdf]
 Peng, Q., W. Ji, S. De, “Mechanical Properties of the Hexagonal Boron Nitride Monolayer: ab initio Study,” Computational Materials Science, 56, 1117 (2012). [online]
 Pusateri, Elise N., Snyder, Evan, “Electromagnetic Pulse Simulations – Swarm Electron Time Delay
in Thunderstorm Environment”, Final Reports from the 2012 Computational Physics Workshop (2012), Los Alamos NM

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2011


 Liang, C. and W. Ji, “On the Chord Length Sampling in 1D Binary Stochastic Media,” Transport Theory and Statistical Physics, 40, 282303 (2011). (Invited Paper) [online] [postprint]
 Li, Y. and W. Ji, “Study on PebbleFluid Interaction Effect in Pebble Bed Reactors,” Trans. Am. Nucl. Soc., 105, 524525 (2011). [pdf]
 Liang, C. and W. Ji, “Parameter Sensitivity Study on the Accuracy of Chord Length Sampling Method,” Trans. Am. Nucl. Soc., 105, 495497 (2011). [pdf]
 Li, Y. and W. Ji, “Modeling of Interactions between FluidDynamics and Pebble Flow in Advanced High Temperature Reactors,” Trans. Am. Nucl. Soc., 104, 404406 (2011). [pdf]
 Liang, C. and W. Ji, “Chord Length Sampling in Stochastic Media Packed with PolySized Spheres,” Trans. Am. Nucl. Soc., 104, 331333 (2011). [pdf]
 Ji, W. and W.R. Martin, “The Application of the Chord Method to Obtain Analytical Expressions for Dancoff Factors in Stochastic Media,” Nuclear Science and Engineering, 169, 1939 (2011) [pdf] [online]
 Li, Y. and W. Ji, “A Collective Dynamicsbased Method for Initial Pebble Packing in Pebble Flow Simulation,” Proceedings of International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2011), Rio de Janeiro, Brazil, May 812, 2011. [pdf]
 Ding, A., T. Liu, C. Liang, W. Ji, M.S. Shephard, X.G. Xu and F.B. Brown, “Evaluation of Speedup of Monte Carlo Calculations of Simple Reactor Physics Problems Coded for the GPU/CUDA Environment,” Proceedings of International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2011), Rio de Janeiro, Brazil, May 812, 2011. [pdf]

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20082010


 Li, Y. and W. Ji, “Pebble Flow Simulation Based on a MultiPhysics Model,” Trans. Am. Nucl. Soc. 103, 323325 (2010). [pdf]
 Liang, C. and W. Ji, “Investigation of Chord Length Sampling Method in Finite 1D Binary Stochastic Media,” Trans. Am. Nucl. Soc., 103, 338341 (2010). [pdf]
 Ji, W. “Impact of the Stochastic Distribution of Fuel Particles on VHTR Neutronic Analysis,” Trans. Am. Nucl. Soc., 100, 312314 (2009). [pdf]
 Ji, W. and W.R. Martin, “Application of chord length sampling to VHTR unit cell analysis,” Proceedings of International Conference on the Physics of Reactors (PHYSOR08), Interlaken, Switzerland, September 1419, 2008. [pdf]

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