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Professor Knauss Receives the 2010 Timoshenko Medal

05-04-10

Wolfgang G. Knauss, Theodore von Kármán Professor of Aeronautics and Applied Mechanics, Emeritus, has been selected to receive the 2010 Timoshenko Medal from the American Society of Mechanical Engineers "for fundamental contributions to the mechanics of fracture, covering mixed-mode fracture, dynamic fracture, and interface and adhesive fracture; and the characterization of material response and failure at the microscale, with an emphasis on experimental mechanics." The Timoshenko Medal was established in 1957 and is conferred in recognition of distinguished contributions to the field of applied mechanics.

Tags: honors research highlights GALCIT Wolfgang Knauss

Novel Negative-Index Metamaterial that Responds to Visible Light

04-23-10

Stanley Burgos, researcher at the Light-Material Interactions in Energy Conversion Energy Frontier Research Center, Harry A. Atwater, Jr., Howard Hughes Professor and Professor of Applied Physics and Materials Science, and colleagues have engineered a novel negative-index metamaterial that responds to visible light. This material bends light in the "wrong" direction from what normally would be expected, irrespective of the angle of the approaching light. [Caltech Press Release]

Tags: APhMS energy research highlights Harry Atwater Stanley Burgos

Caltech Researchers Create "Sound Bullets"

04-22-10

Alessandro Spadoni, Postdoctoral Scholar, and Chiara Daraio, Assistant Professor of Aeronautics and Applied Physics, have built a nonlinear acoustic lens that produces highly focused, high-amplitude acoustic signals dubbed "sound bullets." The combination of the acoustic lens and sound bullets have "the potential to revolutionize applications from medical imaging and therapy to the nondestructive evaluation of materials and engineering systems," says Professor Daraio. [Caltech Press Release]

Tags: APhMS research highlights Chiara Daraio GALCIT health Alessandro Spadoni postdocs

Professor Effros and Colleagues Appear in Scientific American

04-09-10

Michelle Effros, Professor of Electrical Engineering, and colleagues have written an interesting piece in Scientific American on how wireless networks that do not depend on a fixed infrastructure will allow for ubiquitous connectivity. [Scientific American Article]

Tags: EE research highlights Michelle Effros

Christof Koch and Pietro Perona Found that Human Decisions are Influenced by Both Value and Saliency

04-02-10

Christof Koch, Lois and Victor Troendle Professor of Cognitive and Behavioral Biology and Professor of Computation and Neural Systems, Pietro Perona, Allen E. Puckett Professor of Electrical Engineering, and colleagues' research on decision making and visual saliency has found that human decisions are influenced by both value and saliency in a way that is consistent with the ideal Bayesian observer. [Abstract]

Tags: EE research highlights Pietro Perona Christof Koch

Beverely McKeon Shares Her Perspectives on Controlling Turbulence in Science Magazine

03-26-10

Beverley McKeon, Assistant Professor of Aeronautics, shares her perspectives on controlling turbulence in the March 2010 issue of Science. Professor McKeon states, "more than 100 years after Osborne Reynolds's seminal experiments on the transition of flow through a pipe from a laminar to a turbulent state, the exact physical mechanism that drives this phenomenon still vexes the fluid mechanics community." [Science Magazine Article]

Tags: research highlights GALCIT Beverley McKeon

Joel Tropp is a Recipient of the 2010 Sloan Research Fellowship

02-23-10

Congratulations to Joel Tropp, Assistant Professor of Applied and Computational Mathematics, for being a recipient of the 2010 Sloan Research Fellowship. The Sloan Research Fellowships are awarded yearly to 118 researchers in recognition of distinguished performance and a unique potential to make substantial contributions to their field.

Tags: honors CMS Joel Tropp Sloan Research Fellowship

Anthony Leonard and Richard Flagan Elected Members of the 2010 Class of the NAE

02-18-10

Anthony Leonard, Theodore von Kármán Professor of Aeronautics, Emeritus, and Richard C. Flagan, Irma and Ross McCollum-William H. Corcoran Professor of Chemical Engineering and Professor of Environmental Science & Engineering; Executive Officer of Chemical Engineering, have been elected members of the 2010 class of the National Academy of Engineering (NAE). NAE membership honors those who have made important contributions to engineering theory and practice, and those who have demonstrated unusual accomplishments in the pioneering of new and developing fields of technology. Election to the NAE is one the highest professional distinctions an engineer can receive. Professor Flagan was elected to the NAE "for leadership in invention, measurement, production, and technology of aerosols" and Professor Leonard was elected "for contributions to simulation of turbulence, new vortex methods of flow simulation, and understanding of flow-induced vibration." [Caltech Today Article]

Tags: honors GALCIT ESE Anthony Leonard Richard Flagan National Academy of Engineering

First Brain Recordings from Behaving Fruit Flies

02-16-10

Michael Dickinson, the Esther M. and Abe M. Zarem Professor of Bioengineering, with postdoctoral scholars Gaby Maimon and Andrew Straw have obtained the first recordings of brain-cell activity in an actively flying fruit fly. The work suggests that at least part of the brain of the fruit fly "is in a different and more sensitive state during flight than when the fly is quiescent," Dickinson says. [Caltech Press Release]

Tags: research highlights Michael Dickinson postdocs

Nanoscale Structures with Superior Mechanical Properties

02-09-10

Julia Greer, Assistant Professor of Materials Science and Mechanical Engineering, and Dongchan Jang, Postdoctoral Scholar, have developed a way to make some notoriously brittle materials ductile—yet stronger than ever—simply by reducing their size. Professor Greer describes, "We are entering a new era in materials science, where structural materials can be created not only by utilizing monolith structures, like ceramics and metals, but also by introducing 'architectural' features into them." [Caltech Press Release]

Tags: APhMS research highlights MCE Julia Greer Dongchan Jang postdocs