Invited Talks

• Molecular dynamics simulation of large scale Si and C systems using tight-binding O(N) method, Local orbital methods for large scale atomistic simulations, CECAM workshop, Lyon, France (July 1998)
• Extended Si defects, Electronic structure workshop at Pohang University of Science and Technology, Republic of Korea (May 1998); Physics of insulators, workshop at Aspen center for physics, Aspen, CO (June 1998).
• Tight-binding quantum simulations for thousands of atoms, APS March Meeting, Los Angeles, CA (Mar. 1998).
• Parallel implementation of the Car-Parrinello fictitious Lagrangian algorithm, The annual workshop on recent developments in electronic structure algorithms, ITP, Santa Babara, CA (June 1994).

Contributed Talks

• Pseudopotential calculations of semiconductor nanostructures -- Russian Doll GaAs/AlAs and strained InAs/GaAs, APS March Meeting, Kansas City, MO (Mar. 1997).
• Extended Si defects, APS March Meeting, Kansas City, MO (Mar. 1997).
• Simulations of C₂₄ collisions by orbital-based O(N) method, The annual workshop on recent developments in electronic structure algorithms, St. Mary's College of Maryland, MD (May 1995); APS March Meeting, St. Louis, MO (Mar. 1996).
• Total energy global optimization using nonorthogonal localized orbitals, APS March Meeting, San Jose, CA (Mar. 1995).
• Surface phonons of the Si(111)-7x7 reconstructed surface, APS March Meeting, Pittsburgh, PA (Mar. 1994).