Daniel J. Inman; Director, Center for Intelligent Material Systems and Structures.Since 1980, he has published five books (on vibration, control, statics, and dynamics), eight software manuals, seven book chapters, over 160 journal papers and 300 proceedings papers, graduated 35 Ph.D. students and supervised more than 55 MS degrees. He is currently Technical Editor of the Journal of Intelligent Material Systems and Structures (1999-2004), Technical Editor of the Shock and Vibration Digest (1998-2001), and Technical Editor of the journal Shock and Vibration (1999-2004). Charles R. Farrar, MS T-001, Los Alamos National Laboratory. Farrar is President of Los Alamos Dynamics.  He is an expert in structural health monitoring and in technologies for detecting changes or damage in complex mechanical systems, ranging from bridges to nuclear weapons. He has authored dozens of papers and conference reports and has served as an editor for the International Journal of Structural Health Monitoring and the American Society of Mechanical Engineers Journal of Vibration and Acoustics. Farrar was instrumental in the recent establishment of the joint Engineering Institute for educational collaboration between the Laboratory and the Jacobs School of Engineering at the University of California, San Diego. Vicente Lopes Junior, Director of the Faculty of Engineering of Ilha Solteira, UNESP, Universidade Estadual de São Paulo, Brazil. Valder Steffen Junior, Federal University of Uberlandia, School of Mechanical Engineering, Campus Santa Mùnica, Brazil.