The papers in this volume were selected for presentation at the 16th Int- national Meshing Roundtable (IMR), held October 14-17, 2007 in Seattle, Washington, USA. The conference was started by Sandia National Labora- riesin1992asasmallmeetingoforganizationsstrivingtoestablishacommon focus for research and development in the ?eld of mesh generation. Now after 16 consecutive years, the International Meshing Roundtable has become r- ognized as an international focal point annually attended by researchers and developers from dozens of countries around the world. The 16th International Meshing Roundtable consists of technical pres- tations from contributed papers, keynote and invited talks, short course p- sentations, and a poster session and competition. The Program Committee would like to express its appreciation to all who participate to make the IMR a successful and enriching experience. The papers in these proceedings were selected from among 41 submissions by the Program Committee. Based on input from peer reviews, the committee selected these papers for their perceived quality, originality, and appropria- ness to the theme of the International Meshing Roundtable. We would like to thank all who submitted papers. We would also like to thank the colleagues who provided reviews of the submitted papers. The names of the reviewers are acknowledged in the following pages. We extend special thanks to Lynn Washburn, Bernadette Watts, and Jacqueline Finley for their time and e?ort to make the 16th IMR another outstanding conference.

The papers in this volume were selected for presentation at the 16th Int- national Meshing Roundtable (IMR), held October 14–17, 2007 in Seattle, Washington, USA. The conference was started by Sandia National Labora- riesin1992asasmallmeetingoforganizationsstrivingtoestablishacommon focus for research and development in the ?eld of mesh generation. Now after 16 consecutive years, the International Meshing Roundtable has become r- ognized as an international focal point annually attended by researchers and developers from dozens of countries around the world. The 16th International Meshing Roundtable consists of technical pres- tations from contributed papers, keynote and invited talks, short course p- sentations, and a poster session and competition. The Program Committee would like to express its appreciation to all who participate to make the IMR a successful and enriching experience. The papers in these proceedings were selected from among 41 submissions by the Program Committee. Based on input from peer reviews, the committee selected these papers for their perceived quality, originality, and appropria- ness to the theme of the International Meshing Roundtable. We would like to thank all who submitted papers. We would also like to thank the colleagues who provided reviews of the submitted papers. The names of the reviewers are acknowledged in the following pages. We extend special thanks to Lynn Washburn, Bernadette Watts, and Jacqueline Finley for their time and e?ort to make the 16th IMR another outstanding conference.

Tetrahedral Meshing 1.- Aggressive Tetrahedral Mesh Improvement.- Three-dimensional Semi-generalized Point Placement Method for Delaunay Mesh Refinement.- SVR: Practical Engineering of a Fast 3D Meshing Algorithm*.- Construction of Sparse Well-spaced Point Sets for Quality Tetrahedralizations.- Optimization and Adaptivity.- Interleaving Delaunay Refinement and Optimization for 2D Triangle Mesh Generation.- A New Meccano Technique for Adaptive 3-D Triangulations.- Well-centered Planar Triangulation – An Iterative Approach.- Generation of Quasi-Optimal Meshes Based on a Posteriori Error Estimates.- Geometry.- An Efficient Geometrical Model for Meshing Applications in Heterogeneous Environments.- A Hole-filling Algorithm Using Non-uniform Rational B-splines.- Removing Small Features with Real CAD Operations.- Automatic Extraction of Quadrilateral Patches from Triangulated Surfaces Using Morse Theory.- Hexahedral Meshing.- An Extension of the Reliable Whisker Weaving Algorithm.- Methods and Applications of Generalized Sheet Insertion for Hexahedral Meshing.- A Selective Approach to Conformal Refinement of Unstructured Hexahedral Finite Element Meshes.- pCAMAL: An Embarrassingly Parallel Hexahedral Mesh Generator*.- Surface Meshing.- An Extension of the Advancing Front Method to Composite Geometry.- A Mesh Morphing Technique For Geometrically Dissimilar Tessellated Surfaces.- Mesh Sizing with Additively Weighted Voronoi Diagrams.- Overlaying Surface Meshes: Extension and Parallelization.- Applications and Three-dimensional Techniques.- Automatic 3D Mesh Generation for a Domain with Multiple Materials.- Mixed-Element Mesh for an Intra-Operative Modeling of the Brain Tumor Extraction.- Geometric Algorithms for 3D Interface Reconstruction.- k-Compatible Tessellations*.-Tetrahedral Meshing 2.- Meshing 3D Domains Bounded by Piecewise Smooth Surfaces*.- Automatic tetrahedral out-of-core meshing.- A Practical Delaunay Meshing Algorithm for a Large Class of Domains*.- Efficient Delaunay Mesh Generation from Sampled Scalar Functions.- Applications and Software.- Parallel Mesh Adaptation for Highly Evolving Geometries with Application to Solid Propellant Rockets.- New Applications of the Verdict Library for Standardized Mesh Verification Pre, Post, and End-to-End Processing.- An Immersive Topology Environment for Meshing.- CUBIT and Seismic Wave Propagation Based Upon the Spectral-Element Method: An Advanced Unstructured Mesher for Complex 3D Geological Media.

The papers in this volume were selected for presentation at the 16th Int- national Meshing Roundtable (IMR), held October 14–17, 2007 in Seattle, Washington, USA. The conference was started by Sandia National Labora- riesin1992asasmallmeetingoforganizationsstrivingtoestablishacommon focus for research and development in the ?eld of mesh generation. Now after 16 consecutive years, the International Meshing Roundtable has become r- ognized as an international focal point annually attended by researchers and developers from dozens of countries around the world. The 16th International Meshing Roundtable consists of technical pres- tations from contributed papers, keynote and invited talks, short course p- sentations, and a poster session and competition. The Program Committee would like to express its appreciation to all who participate to make the IMR a successful and enriching experience. The papers in these proceedings were selected from among 41 submissions by the Program Committee. Based on input from peer reviews, the committee selected these papers for their perceived quality, originality, and appropria- ness to the theme of the International Meshing Roundtable. We would like to thank all who submitted papers. We would also like to thank the colleagues who provided reviews of the submitted papers. The names of the reviewers are acknowledged in the following pages. We extend special thanks to Lynn Washburn, Bernadette Watts, and Jacqueline Finley for their time and e?ort to make the 16th IMR another outstanding conference.