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Visualizing the Complex Behavior of Vortices Surrounding Hummingbird Wings

08-11-17

Peter Schröder, the Shaler Arthur Hanisch Professor of Computer Science and Applied and Computational Mathematics, and his team have built a computational algorithm to model the behavior of vortices—rotating regions of fluids that form phenomena such as tornados or whirlpools. [Caltech story]

Tags: research highlights CMS Peter Schröder

Deep Learning Networks and Sensorimotor Control

08-08-17

Professor John Doyle and colleagues are among only nineteen groups in the United States to receive National Science Foundation (NSF) funding to conduct innovative research focused on neural and cognitive systems. They aim is to integrate the capabilities of deep learning networks into a biologically inspired architecture for sensorimotor control that can be used to design more robust platforms for complex engineered systems. [NSF release]

Tags: EE research highlights CMS John Doyle

Creature-Cataloging Contest for Computers

08-02-17

Caltech and Cornell teamed up to create the iNaturalist Challenge, a competition to create the best machine-learning algorithm for identifying the world's plant and animal species. The contest was an outgrowth of the institutions' previous work together on Visipedia, a visual encyclopedia created by a network of people and machine-learning computers that harvest image information off the internet. The technology was developed for the encyclopedia by Pietro Perona's Vision Group at Caltech and Serge Belongie's Computer Vision Group at Cornell Tech. [Caltech story]

Tags: EE research highlights CMS Pietro Perona

Bergles-Rohsenow Young Investigator Award

08-01-17

Austin Minnich, Professor of Mechanical Engineering and Applied Physics, is a recipient of the Bergles-Rohsenow Young Investigator Award in Heat Transfer from the American Society of Mechanical Engineers (ASME). The award recognizes an engineer who is under 36 years of age and is committed to pursuing research in heat transfer, and has demonstrated the potential to make significant contributions to the field.

Tags: APhMS honors MCE Austin Minnich

Professor Rosakis Elected Fellow of the American Geophysical Union

07-28-17

Ares J. Rosakis, Theodore von Karman Professor of Aeronautics and Mechanical Engineering, has been elected a Fellow of the American Geophysical Union (AGU). This honor is given to individual AGU members who have made exceptional scientific contributions and gained prominence in their respective fields of Earth and space sciences. [AGU release]

Tags: honors GALCIT MCE Ares Rosakis

Professor Minnich Receives IPPA Junior Prize

07-22-17

Austin Minnich, Professor of Mechanical Engineering and Applied Physics, is a recipient of the International Photothermal and Photoacoustics Association (IPPA) Junior Prize. He received the prize for outstanding contributions to the understanding of quasiballistic thermal transport, including the development of photothermal methods to directly probe heat conduction at length scales comparable to phonon mean free paths; for demonstrating how microscopic transport properties of thermal phonons in solids may be obtained using photothermal experimental methods along with ab-initio calculations; and for advances in the mathematical treatment of quasiballistic transport using the Boltzmann equation.

Tags: APhMS honors MCE Austin Minnich

Neural Networks Model Audience Reactions to Movies

07-21-17

Yisong Yue, Assistant Professor of Computing and Mathematical Sciences, and colleagues have created a new deep-learning software capable of assessing complex audience reactions to movies using the viewer's facial expressions. "Understanding human behavior is fundamental to developing AI [artificial intelligence] systems that exhibit greater behavioral and social intelligence. For example, developing AI systems to assist in monitoring and caring for the elderly relies on being able to pick up cues from their body language. After all, people don't always explicitly say that they are unhappy or have some problem," Professor Yue says. [Caltech story]

Tags: research highlights CMS Yisong Yue

Professor Rosakis Named ICF Honorary Fellow and Vice President

07-21-17

Ares J. Rosakis, Theodore von Karman Professor of Aeronautics and Mechanical Engineering, has been named an honorary fellow of the International Congress on Fracture (ICF) which is the premier international body for promotion of worldwide cooperation among scientists and engineers concerned with the mechanics and mechanisms of fracture, fatigue, and strength of solids. He has also been elected as one of the group's three vice presidents.

Tags: honors GALCIT MCE Ares Rosakis

Holographic Imaging Could Be Used to Detect Signs of Life in Space

07-21-17

Jay Nadeau, Research Professor of Medical Engineering and Aerospace, and colleagues are exploring ways to sample and identify living microbes in the outer solar system. Her proposal is to use new microscopes on spacecraft that could visit the icy moons of Enceladus (Saturn) and Europa (Jupiter) and to collect and search water samples for life. [Caltech story]

Tags: research highlights GALCIT Jay Nadeau

Reflective Nanostructures

07-13-17

Andrei Faraon, Assistant Professor of Applied Physics and Materials Science, and colleagues have discovered how to use computer-chip manufacturing technologies to create the kind of reflective materials that make safety vests, running shoes, and road signs appear shiny in the dark. The new technology uses surfaces covered by a metamaterial consisting of millions of silicon pillars, each only a few hundred nanometers tall. By adjusting the size of the pillars and the spacing between them, Faraon can manipulate how the surface reflects, refracts, or transmits light. [Caltech story]

Tags: APhMS research highlights Andrei Faraon