Several members of our group wrote papers and chaired sessions for the 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit held in Sacramento, California, July 9 through 12, 2006. Here is a list of our activities:

• AIAA-2006-4979: Initial Noise Assessment of an Embedded-Wing-Propulsion Concept Vehicle. J. Stone, Westlake, OH; E. Krejsa, Middleburg Heights, OH; J. Berton and H. Kim, NASA Glenn Research Center, Cleveland, OH
• AIAA-2006-4556: Reactor Modeling for Bimodal Nuclear Thermal Rockets. J. Clough, R. Starkey, and M. Lewis, Dept. of Aerospace Engineering University of Maryland, College Park, MD; and T. Lavelle, NASA Glenn Research Center, Cleveland, OH
• AIAA-2006-5105: Assessment of Adaptive Engine Technologies for Aviation CO2 Emissions Reduction. C. Mercer, W. Haller and M. Tong, NASA Glenn Research Center, Cleveland, OH
• High-Fidelity Propulsion System Simulations; Session chaired by: J. Lytle and T. Lavelle, NASA Glenn Research Center, Cleveland, OH
• Turbine Engines IV; Session Chaired by: R. Bruckner, NASA Glenn Research Center, Cleveland, OH, and I. Halliwell, Belcan Corporation, Medina, OH