Invited Presentations (& organizer):
  • "Recent developments on NekCEM/NekLBM codes for electromagnetics and fluids," The 2nd Nek5000 Users and Development Meeting, Swiss Federal Institute of Technology Zurich (ETHZ), Zurich, Switzerland, Dec 7-8, 2012.
  • "Extreme-scale modeling for transport simulations," UC Review for CELS at Argonne National Laboratory, Sept. 19, 2012.
  • “Hybrid programming and performance for beam propagation modeling,” The 11th International Computational Accelerator Physics Conference (ICAP12), Rostock-Warnemünde, Germany, Aug. 19-24, 2012,
  • Minisymposium on Massively Parallel, Scalable Algorithms and Software for Scientific Applications, at SIAM Parallel Processing for Scientific Computing, Savannah, Georgia, Feb 15-17, 2012.
  • "Scaling PDE solvers to exascale," at DOE Applied Math PI Meeting, Washington DC, Oct. 17-19, 2011.
  • "Efficient high-order time integration algorithms for transport simulations," Minisympoium on Computational Methods for Hyperbolic Problems at the Laurier Centennial Conference: AMMCS-2011, Waterloo, Ontario, Canada, July 25-29, 2011.
  • "High-performance high-order simulations for scientific applications in accelerator physics, plasmonic nanodevices, and fluids," Seminar at the Department of Mechanical Engineering, The City College of New York, New York, Mar 31, 2011.
  • "High-performance high-order simulations for electromagnetics and fluids," Meeting with UIC SIAM students, MCS/ANL, Mar 14, 2011.
  • "Performance Analysis on the IBM BG/P for High-Order Electromagnetic Modelings," (Organizing Chair) at Minisymposium on Large-Scale Computing for Scientific Applications, SIAM Conference on Computational Science and Engineering, Reno, Nevada, Feb.28-Mar 4, 2011.
  • "Towards extreme-scale: high-order algorithms for electromagnetic and fluid modeling", Advanced Scientific Computing Advisory Committee (ASCAC) meeting, MCS/ANL, Nov 10, 2010.
  • "An efficient high-order time integration method based on Krylov approximations for electromagnetic modeling," AMS Fall Central Section Meeting, Notre Dame, IN, Nov. 5-7, 2010.
  • "Efficient high-order algorithms for nanoscience simulations," DOE Applied Mathematics Research Program PI Meeting, Poster Session, Berkeley, CA, May 3-5, 2010.
  • "Scalable High-Order Algorithms for Applications in Plasmonics, Particle Accelerator Physics, and Fluids," Computational and Applied Mathematics Seminar, Department of Mathematics, Purdue University, April 23, 2010.
  • "High-Order Methods in Space and Time for Time-Dependent Electromagnetic Problems," Computational Science and Engineering MiniWorkshop, Yonsei Univerisity, Seoul, Korea, Dec. 18, 2009.
  • "Large scale simulations based on spectral-element discontinuous Galerkin methods: Nanoscience and accelerator applications," The First Joint Meeting of KMS and AMS, Computational Science and Engineering Session, Seoul, Korea, Dec. 16-20, 2009.
  • "Spectral element discontinuous Galerkin simulations with moving window for wakefield calculations", International Computational Accelerator Physics (ICAP) Conference, San Francisco, CA, Aug. 31- Sept.4, 2009.
  • "High-Performance Electromagnetic Modeling: Scientific applications in nanoscience and accelerator physics," (Co-Chair) at Mathematics Symposium for UKC Conference 2009, Raleigh, NC, July 16-19, 2009.
  • "Light transmission calculations for nano arrays: spectral element discontinuous Galerkin method," (Organizing Chair) at a Minisymposium for ICOSAHOM 2009, Computational Electromagnetics: Theory and Applications for high Order Methods, Trondheim, Norway, Jun. 22-26, 2009.
  • "Large-scale electromagnetic modeling based on high-order methods: Nanoscience applications," SciDAC Conference 2009, Poster Session, San Diego, CA, Jun. 15-18, 2009.
  • "NekCEM: High-performance electromagnetic simulations," Mathematics and Its Applications Seminar at University of Illinois at Chicago, Feb. 25, 2009.
  • "High-performance electromagnetic modeling," Applied and Computational Math Seminar at U. North Carolina at Charlotte, Charlotte, NC, Jan. 28, 2009.
  • "High-performance electromagnetic simulations," DOE Applied Mathematics Research Program PI Meeting, Poster Session, Argonne, IL, Oct. 15-16, 2008.
  • "Transport simulations with spectral element discontinuous Galerkin methods," Minisymposium of SIAM Annual Meeting, Advances in Numerical Methods for PDEs and Their Applications, San Diego, CA, July 7- July 11, 2008.
  • "Fourier spectral simulations for beam dynamics in accelerating structures," Minisymposium for The International Conference On Spectral and High Order Methods (ICOSAHOM), Beijing, China, Jun. 18-22, 2007.
  • "Computational Nanophotonics: NEKCEM," DOE Applied Mathematics Research Program PI Meeting, Poster Session, Livermore, CA, May 22-24, 2007.
  • "Computational Nanophotonics," Science Careers in Search of Women Conference, Poster Session, Argonne National Laboratory, Mar 8, 2007.
  • "High Order Development on Wakefield Calculation," Advanced Photon Source Division, Argonne National Laboratory, Jan 22, 2007
  • "Spectral methods for electromagnetic waves in discontinuous media," The 6th International Conference on Spectral and High-Order Methods (ICOSAHOM), Recent Advances in Spectral Methods and High Order Finite Difference Schemes, Brown University, RI, Jun. 21-25, 2004.
  • "Spectral methods for 2D photonic band structures," Photonic Band gap Materials and Devices II(OE12) as a part of SPIE's International Symposium on Integrated Optoelectronic Devices at San Jose, CA, Jan. 26-29, 2004.
  • "Spectral methods for discontinuous problems," Computer Science and Mathematics Division, Argonne National Laboratory, Oct. 2003.
  • "Spectral methods for discontinuous problems," Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oct. 2003.
  • "Spectral methods for discontinuous problems," Colloquium, Department of Mathematics, University of Central Florida, FL, Mar. 2003.
    • Contributed Presentations:
  • "Performance Analysis on the IBM BG/P for wakefield calculations," Particle Accelerator Conference (PAC'11), Poster Session, New York, Mar. 28-Apr.1, 2011.
  • "Developing software packages for electromagnetics simulations," Particle Accelerator Conference (PAC'11), Poster Session, New York, Mar. 28-Apr.1, 2011.
  • "Scalable High-order Algorithms for Wakefield Simulations," The 1st International Particle Accelerator Conference (IPAC'10), Poster Session, Kyoto, Japan, May 23-28, 2010.
  • "Spectral element discontinuous Galerkin simulations with moving window," The 23rd Particle Accelerator Conference (PAC'09), Poster Session, Vancouver, Canada, May 4-8, 2009.
  • "Wake fields for TESLA cavity structures: Spectral element discontinuous Galerkin simulations," RF Superconductivity (SRF07), Poster Session, Beijing, China, Oct.14-19, 2007.
  • "Accelerator Modeling," LANS Seminar, Mathematics and Computer Science, Argonne, Aug. 29, 2007.
  • "Spectral-element discontinuous Galerkin simulations for bunched beam in accelerating structures," The 22nd Particle Accelerator Conference (PAC'07), Poster Session, Albuquerque, NM, Jun. 25-29, 2007.
  • "Fourier spectral simulations for wake field in conducting cavities," The 22nd Particle Accelerator Conference (PAC'07), Poster Session, Albuquerque, NM, Jun. 25-29, 2007.
  • "Spectral element discontinuous Galerkin simulations for waveguiding structures," PIERS 2006 in Tokyo- Progress in Electromagnetics Research Symposium, Tokyo, Japan, Aug. 2-5, 2006.
  • "Exponential Integrator based on a Krylov projection method," LANS Seminar, Mathematics and Computer Science Division, Argonne National Laboratory, Jun. 13, 2006.
  • "Spectral element discontinuous Galerkin simulations for metallic nanoparticles," PIERS 2006 in Cambridge - Progress in Electromagnetics Research Symposium, Cambridge, MA, Mar. 26-29, 2006.
  • "Spectral element discontinuous Galerkin simulations for photonic crystals," Photonic Band Gap Material and Devices II (OE12) as a part of SPIE's International Symposium on Integrated Optoelectronic Devices at San Jose, CA, Jan. 22-26, 2006.
  • "High-order methods for nanophotonics and photonic crystals," Mathematics and Computer Science Division, Argonne National Laboratory, Oct. 14, 2005.
  • "Discontinuous Galerkin method based on quadrilateral mesh for Maxwell's equations," The ACES/IEEE International Conference on Wireless Communications and Applied Computational Electromagnetics, Honolulu, HI, Apr. 4-7, 2005.
  • "A fast version of the Gegenbauer method and its application to medical image reconstruction," Applied Math Days in Rensselaer Polytechnic Institute, NY, Oct. 2000.