2007 Fall Meeting of the American Geophysical Union, San Francisco
2007 AMS Congressional Luncheon Briefing, Capitol Hill, Washington D.C.
2007 SIAM Conference on Mathematical and Computational Issues in the Geosciences, Santa Fe
2006 Seventh International Conference on Electrical Transport and Optical Properties of Inhomogeneous Materials, Sydney
2006 International Conference on Antarctic Sea Ice Thickness, Hobart, Tasmania
2005 International Glaciological Society Symposium on Sea Ice, Dunedin, New Zealand
2004 Society for Engineering Science, Prager Medal Symposium, Lincoln, NE
2004 International Workshop on Nonlinear Waves, Hong Kong
2003 Applied Mathematics and Applications of Mathematics, European Mathematical Society (EMS) and the French Mathematical Societies (SMAI - SMF), Nice
2003 Random Phenomena in Applied Mathematics, A Conference in Honor of George Papanicolaou's 60th Birthday, Stanford
2002 Sixth International Conference on Electrical Transport and Optical Properties of Inhomogeneous Materials, Snowbird, UT
2001 Plenary Lecture, Hong Kong Mathematical Society, Hong Kong
2000 Distinguished Lecture Series in Mathematical and Physical Sciences, National Science Foundation, Washington, D.C.
2000 International Conference on Homogenization and Materials Science, Akron
2000 International Glaciological Society Symposium on Sea Ice and its Interactions with the Ocean, Atmosphere and Biosphere, Fairbanks, Alaska
2000 Statistical Mechanics Conference in Honor of Joel Lebowitz' 70th Birthday, Rutgers University
2000 Plenary Lecture, Third SIAM Conference on Mathematical Aspects of Materials Science, Philadelphia
1999 Fifth International Conference on Electrical Transport and Optical Properties of Inhomogeneous Materials, Hong Kong
1999 IUTAM Symposium 99/4: Mechanical and Electromagnetic Waves in Structured Media, Sydney
1998 American Mathematical Society Meeting, Penn State
1997 Fourth International Conference on Composites Engineering, Hawaii
1997 Plenary Address, Joint Assemblies of the International Association for the Physical Sciences of the Oceans and the International Association of Meteorolgy and Atmospheric Sciences, Melbourne
1997 First Congress of the International Society for Analysis, Applications and Computation, U. of Delaware
1997 SPIE 4th Annual Symposium on Smart Structures and Materials, San Diego
1997 Gordon Conference on Sea Ice Ecology (invited poster), Ventura, CA
1997 PIERS97, Hong Kong
1996 Sea Ice Electromagnetics Workshop, Universtity of Kansas, Lawrence
1996 Applied Mathematics Workshop for Materials Studies and Industrial Applications, Penn State
1996 PIERS96, Innsbruck
1996 Conference on Homogenization and Random Media in Honor of Serguei Kozlov, Marseille
1996 International Geoscience and Remote Sensing Symposium, Lincoln, NE
1996 Workshop on the Antarctic Zone Flux (ANZFLUX) Experiment, Barcelona
1995 Fall Meeting of the American Geophysical Union (invited poster), San Francisco
1995 Tutorial for the Workshop on Disordered Media and Percolation, IMA, U. of Minnesota
1995 Workshop on Sea Ice Electromagnetics, CRREL, NH
1995 PIERS95, Seattle
1994 Workshop on Waves in Complex and Random Media, Institute for Mathematics and its Applications (IMA), U. of Minnesota
1994 Workshop on Sea Ice Electromagnetics, CRREL, NH
1994 Prager Medal Symposium on Heterogeneous Solids, Society for Engineering Science Annual Meeting, Texas A&M
1994 Conference on Emerging Issues in Matematics and Computation from the Material Sciences, Pittsburgh
1993 Second Workshop on Composite Media and Homogenization Theory, Trieste
1993 Third International Conference on Electrical Transport and Optical Properties of Inhomogeneous Materials, Guanajuato, Mexico
1993 PIERS93 (Progress in Electromagnetics Research Symposium), Cal Tech
1993 Invited Address, AMS Meeting, Salt Lake City
1992 Sea Ice Electromagnetics Workshop, CRREL, N.H.
1991 Homogenization Workshop, MSRI, Berkeley
1990 Workshop on Random Partial Differential Equations, Trieste
1989 Conference on Random Partial Differential Equations, Oberwolfach
1989 AMS-SIAM Summer Seminar on the Mathematics of Random Media, Blacksburg, VA