News & Events


Progress for Paraplegics


Joel W. Burdick, Richard L. and Dorothy M. Hayman Professor of Mechanical Engineering and Bioengineering, and Yu-Chong Tai, Professor of Electrical Engineering and Mechanical Engineering, are developing new technologies to expand their research which has enabled a paraplegic man to stand and move his legs voluntarily. The team has until now used intelligent guesswork to determine which stimuli might work best. But soon, using a new algorithm developed by Professor Burdick, they will be able to rely on a computer to determine the optimum stimulation levels, based on the patient's response to previous stimuli. This would allow patients to go home after the extensive rehab process with a system that could be continually adjusted by computer. [Caltech Release] [ENGenious Progress Report]

Tags: EE research highlights MedE health Yu-Chong Tai MCE Joel Burdick

Number One Engineering and Technology University


For the third year the Times Higher Education world university rankings has ranked Caltech as number one in engineering and technology. [View Rankings] [Caltech Feature]

Tags: APhMS EE GALCIT MCE CMS ESE Graduate school rankings

Professor Greer Receives Breakthrough Award from Popular Mechanics magazine


Julia R. Greer, Assistant Professor of Materials Science and Mechanics, is receiving a 2012 Breakthrough Award from Popular Mechanics magazine as part of the team that engineered the world's lightest solid material. "I am delighted that Professor Greer is being honored with this award," says Ares Rosakis, chair of the Division of Engineering and Applied Science (EAS) at Caltech. "She is a great example of how we in EAS are working at the edges of fundamental science to invent the technologies of the future." [Caltech Release]

Tags: APhMS honors MCE Popular Mechanics Julia Greer

Winners of the 2012 Demetriades - Tsafka - Kokkalis Prizes Announced


The student winners of the 2012 Demetriades - Tsafka - Kokkalis Prizes were announced at a special luncheon with the Demetriades - Tsafka – Kokkalis family. Philip Romero received the prize in Biotechnology for his work on developing statistical models of proteins with Frances Arnold. Michael Mello was the recipient of the prize in Seismo-Engineering, Prediction, and Protection for his work with Ares Rosakis on developing a novel methodology for identifying the unique ground motion signatures of supershear earthquakes. Leslie O’Leary received the prize in Environmentally Benign Renewable Energy Sources for her pathbreaking work on the properties of semiconductor interfaces with Nate Lewis and Bob Grubbs. This year there were two winners for the prize in Nanotechnology. One winner was Andrew Jennings for his experimental and modeling work in nanomechanics with Julia Greer. The other winner of the Nanotechnology prize was Jordan Raney who has worked with Chiara Daraio to develop new chemical synthesis methods to control the properties of carbon nanotubes.

Tags: APhMS honors research highlights Chiara Daraio GALCIT MCE Nate Lewis Julia Greer Demetriades - Tsafka - Kokkalis Prizes Ares Rosakis Frances Arnold Philip Romero Leslie O’Leary Bob Grubbs Andrew Jennings Jordan Raney Michael Mello

Better, Stronger, Lighter Armor


Kaushik Bhattacharya, Howell N. Tyson, Sr., Professor of Mechanics and Professor of Materials Science, is the Caltech lead on a $90 million U.S. Army Research Laboratory funded program to improve protective gear and vehicles for soldiers. "…studying materials in very extreme conditions is an area where Caltech engineering really stand out," says Bhattacharya. "The tools we bring, on both the theoretical and experimental sides uniquely bridge deep fundamental principles with unprecedented application.” [Caltech Feature]

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Tags: APhMS GALCIT MCE Guruswami Ravichandran Julia Greer William Goddard Michael Ortiz Dennis Kochmann Kaushik Bhattacharya

New Faculty Members in EAS Zoom in on the Nanoscale


Hyuck Choo, Dennis Kochmann, and Austin Minnich focus on quite different challenges, but they all home in on the nanoscale. "Caltech and EAS take pride in lowering the barriers between disciplines to create collaborative environments for researchers such as Hyuck, Dennis, and Austin to work on a variety of topics including understanding and predicting behavior of materials at the nanoscale, which already is an area of strength within EAS," says Ares Rosakis, Theodore von Karman Professor of Aeronautics and Professor of Mechanical Engineering; Chair, Division of Engineering and Applied Science. [Caltech Feature]

Tags: EE GALCIT MCE Hyuck Choo Dennis Kochmann Austin Minnich

Light as a Feather, Stiffer Than a Board


Julia R. Greer, Assistant Professor of Materials Science and Mechanics, and colleagues have developed the world’s lightest solid material, with a density of 0.9 milligrams per cubic centimeter. The new material, called a micro-lattice, relies, on a lattice architecture: tiny hollow tubes made of nickel-phosphorous are angled to connect at nodes, forming repeating, asterisklike unit cells in three dimensions. "We're entering a new era of materials science where material properties are determined not only by the microscopic makeup of the material but also by the architecture of the constituents," Greer says. [Caltech Feature]

Tags: APhMS research highlights Julia Greer

Professor Greer Receives Sia Nemat-Nasser Early Career Award


Julia R. Greer, Assistant Professor of Materials Science and Mechanics, has been selected by the American Society of Mechanical Engineers (ASME) Materials Division Executive Committee to receive the 2011 Sia Nemat-Nasser Early Career Award for her research contributions in “physical origins of size-dependent mechanical properties in nano-scale solids”.

Tags: APhMS honors Julia Greer

Cell-phone Medical Devices


Mani Chandy, Simon Ramo Professor and Professor of Computer Science; Deputy Chair for Education, and Julian J. Bunn, Principal Computational Scientist at CACR, are working with a group of Summer Undergraduate Research Fellowships (SURF) in CMS, EE, and MCE to building a collection of medical devices that can be connected to a cell phone. "We want to exploit cell-phone technology and the Internet to provide inexpensive health-care tests for the poor in remote rural villages," says Chandy. [Caltech Feature]

Tags: EE research highlights health MCE CMS Kanianthra Mani Chandy Julian Bunn SURF

Stimulating Electrode Array Assists Paraplegic Man to Stand and Move Legs Voluntarily


Joel W. Burdick, Professor of Mechanical Engineering and Bioengineering, and colleagues including Yu-Chong Tai, Professor of Electrical Engineering and Mechanical Engineering, have used a stimulating electrode array to assist a paralyzed man to stand, step on a treadmill with assistance, and, over time, to regain voluntary movements of his limbs. Using a combination of experimentation, computational models of the array and spinal cord, and machine-learning algorithms, Professor Burdick and his colleagues are now trying to optimize the stimulation pattern to achieve the best effects, and to improve the design of the electrode array. Further advances in the technology should lead to better control of the stepping and standing processes. 

Tags: EE research highlights MedE health Yu-Chong Tai MCE Joel Burdick