Modeling Jet Engine Noise
11-06-12
Tim Colonius, Professor of Mechanical Engineering, and his group have been building models to understand how jet engines generate noise and the Office of Naval Research recently awarded him funding to develop a better way to control the din. “Now we are getting a much more detailed picture of the actual mechanism by which the turbulence makes the sound,” Colonius says. [E&S Article in pdf]
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Tim Colonius
Progress for Paraplegics
10-25-12
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]
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Joel Burdick
Yu-Chong Tai
Reconsidering the Global Thermostat
10-24-12
Doug MacMartin, Senior Research Associate in Computing and Mathematical Sciences, and colleagues have shown that the outcome of geoengineering can be tunable. Geoengineering is the concept of how the planet's climate could be manipulated to counteract the effects of global warming. Using computer modeling, they have shown that varying the amount of sunlight deflected away from the earth by season and by region can significantly improve the parity of the situation. [Caltech Release]
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Doug MacMartin
Clean-Energy Research Accelerates
10-22-12
Caltech clean-energy research is accelerating thanks to the renovation of the Earle M. Jorgensen Laboratory. Transformed into a cutting-edge facility for energy science, the lab unites two powerhouse programs: the Resnick Sustainability Institute and the Joint Center for Artificial Photosynthesis (JCAP). "Our researchers are working with Caltech's chemists and chemical engineers to challenge the status quo and translate scientific discovery into clean-energy innovations that will directly benefit society for generations to come," says Chair Ares Rosakis. [Caltech Release]
Developing the Next Generation of Microsensors
10-19-12
Oskar J. Painter, Professor of Applied Physics; Executive Officer for Applied Physics and Materials Science; and Co-Director, Kavli Nanoscience Institute, and colleagues have engineered a microscale optical accelerometer. In addition to transforming consumer electronics, such sensors could help with oil and gas exploration deep within the earth, could improve the stabilization systems of fighter jets, and could even be used in some biomedical applications where more traditional sensors cannot operate. "Professor Painter's research in this area nicely illustrates how the Engineering and Applied Science faculty at Caltech are working at the edges of fundamental science to invent the technologies of the future," says Chair Ares Rosakis. [Caltech Release]
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Oskar Painter
A "Gifted" Professor
10-11-12
Twenty former PhD and graduate student advisees of Frank E. Marble, Richard L. and Dorothy M. Hayman Professor of Mechanical Engineering and Professor of Jet Propulsion, Emeritus, have joined together to honor and thank their mentor by creating the Frank and Ora Lee Marble Endowed Professorship. Chair Ares Rosakis, remarks, “Inspirational teachers and researchers like Frank Marble and his adviser Theodore von Kármán create new schools of thought which nurture generation after generation of academics. It is this long term commitment to education and research that helps the Engineering and Applied Science Division and Caltech maintain their number one position in the recently announced world university rankings." [Learn More]
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Frank E. Marble