1. The Biot Conference on Poromechanics,Université catholique de Louvain, Belgium, founded in 1998, with J.-F. Thimus, E. Detournay, Y. Abousleiman, and O. Coussy. (2nd Conference, Grenoble, France, 2002; 3rd Conference, Norman, Oklahoma, USA, 2005; 4th Conference, Columbia University, New York, USA, 2009.)
  2. The International Conference and Workshop on Saltwater Intrusion and Coastal Aquifers-Monitoring, Modeling, and Management, Essaouira, Morocco, founded in 2001, with D. Ouazar, J. Bear, L. Konikow, C.I. Voss, and G. Barrocu. (2nd Conference, Merida, Mexico, 2003; 3rd Conference, Cagliari, Italy, 2006; 4th Conference, Florida, USA, 2008.)


  1. Conference Chair, The Fifth International Conference on Boundary Element Technology, University of Delaware, Newark, Delaware, July 10-12, 1990, with C.A. Brebbia and S. Grilli.
  2. Conference Chair, The Third International Conference on Computer Methods and Water Resources, Beirut, Lebanon, September 25-28, 1995, with Y. Abousleiman, C.A. Brebbia, and D. Ouazar.
  3. Conference Co-Chair, The Fourth International Conference on Computer Methods and Water Resources, Byblos, Lebanon, June 16-18, 1997, with Y. Abousleiman and C.A. Brebbia (Conference Chairs), R. Ghanem and D. Ouazar (Co-Chairs).
  4. Conference Chair, The First International Conference on Water Resources Management, Halkidiki, Greece, September 24-26, 2001, with C.A. Brebbia, P. Anagnostopoulos, and K. Katsifarakis.
  5. Conference Co-Chair, The Third Biot Conference on Poromechanics, May 24-27, 2005, University of Oklahoma, with Y. Abousleiman (Conference Chair) and F. Ulm (Co-Chair).
  6. Conference Technical Co-Chair, Mid-South Area Engineering and Sciences Conference, May 17-18, 2007, Oxford, Mississippi, with K.-F. Lee (Conference Chair) and A. Elsherbeni (Technical Co-Chair).


  1. "Poroelasticity and BEM," Keynote Lecture, 14th International Conference on Boundary Element Technology, Orlando, Florida, March 12-14, 2001.
  2. "Recent advances in meshless methods," Keynote Lecture, 22nd Ibero Latin-American Congress on Computational Methods in Engineering, Campinas, Brazil, November 7-9, 2001.
  3. "Recent advances in meshless methods and radial basis functions," Keynote Lecture, 15th International Conference on Boundary Element Technology, Detroit, May 19-21., 2003.
  4. "Pumping optimization in coastal aquifers," Keynote Lecture, 18th Salt Water Intrusion Meeting, Cartagena, Spain, May 31-June 3, 2004.
  5. "Modeling and management of coastal aquifers," Magistral Lecture, Quinto Congreso Nacional de Aguas Subterráneas, Hermosillo, Sonora, México, October 26-28, 2005.
  6. "Collocation (meshless) method for well- and ill-posed problems in partial differential equations," Plenary Lecture, 1st Workshop on Method of Fundamental Solutions, Ayia Napa, Cyprus, June 11-13, 2007.
  7. "Radial basis function collocation method," Semi-Plenary Lecture ,International Symposium on Computational Mechanics, Beijing, China, July 30-August 1, 2007.
  8. "Meshless collocation method for high accuracy computation," Shi Yen-Ping Lecture, National Taiwan Ocean University, Keelung, Taiwan, December 28, 2007.
  9. "Stability and error estimates of Trefftz method and method of fundamental solutions," Keynote Lecture, 5th Workshop on Trefftz Methods, Katholieke Universiteit Leuven, Belgium, March 31-April 2, 2008.
  10. "Meshless collocation method for high accuracy computation," Plenary Lecture, 9th International Conference on Numerical Analysis and Optimization, Faculty of Science and Technology-Mohammedia, Morocco, December 17-19, 2008.