Morteza Gharib and Abbas Nasiraei Moghaddam Show Function of Helical Band in Heart
Using an MRI technique, Morteza Gharib, Hans W. Liepmann Professor of Aeronautics and Professor of Bioengineering, and his colleague Abbas Nasiraei Moghaddam, a Caltech graduate and visitor in Bioengineering, were able to create some of the first dynamic images of normal heart muscle in action at the tissue level. They showed that a muscular band--which wraps around the inner chambers of the heart in a helix--is actually a sort of twisting highway along which each contraction of the heart travels. "We tagged and traced small tissue elements in the heart, and looked at them in space, so we could see how they moved when the heart contracts," Gharib explains. "In this way, we were able to see where the maximum physical contraction occurs in the heart and when--and to show that it follows this intriguing helical loop."
Chiara Daraio Wins Richard von Mises Prize
Chiara Daraio, Professor Aeronautics and Applied Physics, has won the 2008 Richard von Mises Prize. This prize is awarded each year by the International Association of Applied Mathematics and Mechanics (GAMM) to a young scientist for exceptional scientific achievements in the field of Applied Mathematics and Mechanics. The prize was awarded at the opening ceremony of the Annual meeting of GAMM in March, in Bremen, Germany.
John Dabiri and Joel Tropp Win ONR Young Investigator Awards
Two EAS faculty have won ONR Young Investigator Awards: John Dabiri, Assistant Professor of Aeronautics and Bioengineering, and Joel Tropp, Assistant Professor of Appliedand Computational Mathematics. The objectives of the Young Investigator Program are to attract to naval research outstanding new faculty members, to support their research, and to encourage their teaching and research careers. Tropp's award is for his research into "Compressive Signal Processing - Theory and Algorithms"; and Dabiri's award is for work in "Optimal Propulsion Methodologies for Hybrid Screw-based, Bio-inspired Systems". ONR announced 27 new awards for 2008.
PSAAP Established Under the Direction of Michael Ortiz
A National Nuclear Security Administration (NNSA) Center of Excellence will be established at Caltech, under the direction of Michael Ortiz, Dotty and Dick Hayman Professor of Aeronautics and Mechanical Engineering. This center, PSAAP, one of five new centers to be established, will develop not only the science and engineering models and software for large-scale simulations, but also methods associated with the emerging disciplines of verification and validation and uncertainty quantification. The goal of these emerging disciplines is to enable scientists to make precise statements about the degree of confidence they have in their simulation-based predictions. The center will be funded for $17 million over a five-year period.