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.