Richard Murray Named to DOD Panel on Innovation


Richard M. Murray, Thomas E. and Doris Everhart Professor of Control and Dynamical Systems and Bioengineering, has been named to the Defense Innovation Advisory Board by Secretary of Defense Ash Carter. Professor Murray joins 14 other scholars and innovators who will focus on new technologies and organizational behavior and culture. Secretary Carter has asked them to identify technology and practices from the private sector that could be used by the Department of Defense (DOD). [Caltech story]

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Improving Computer Graphics with Quantum Mechanics


The Schrödinger equation, the basic description of quantum mechanical behavior, can be used to describe the motion of superfluids—fluids, supercooled to temperatures near absolute zero, that behave as though they are without viscosity. Professor Peter Schröder and his colleagues realized that the same equation with some small modifications can also be used to describe vorticity dominated phenomena of fluids at the macroscopic level--from smoke gently rising from a flame to the concentrated vorticity of a twister. [Caltech story & video]

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Counting L.A.’s Trees


Professor Pietro Perona, has developed a method using Google Earth and Google Street View to count the trees in the city of Los Angeles. The process of counting the trees using human tree counters is very expensive and would cost about $3 million today. The last time the city did such counting was more than two decades ago and at the time there were 700,000 street trees. Perona has tested the methodology in a section of Pasadena where the city recently commissioned a sidewalk survey. By comparing the results to the known inventory, he determined that the computer was about 80% accurate. [LA Times story] [KPCC story]

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Professor Schroeder Receives Award for Best Paper in Geometry Processing


Peter Schroeder, Shaler Arthur Hanisch Professor of Computer Science and Applied and Computational Mathematics, and colleagues have received the best paper award at the 2016 Symposium on Geometry Processing for their paper entitled, Splines in the Space of Shells. [Read the paper]

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Professor Doyle Receives Test of Time Paper Award


John Doyle, Jean-Lou Chameau Professor of Control and Dynamical Systems, Electrical Engineering, and Bioengineering, and colleagues have received the ACM SIGCOMM Test of Time Paper Award for their paper, A first-principles approach to understanding the Internet's router-level topology. The award recognizes papers published 10 to 12 years in the past that is deemed to be an outstanding paper whose contents are still a vibrant and useful contribution today. [List of recipients]

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A Microscopic Glowing Van Gogh


Paul Rothemund, Research Professor of Bioengineering, Computing and Mathematical Sciences, and Computation and Neural Systems, and colleagues have developed a technique that allows manmade DNA shapes to be placed wherever desired; to within a margin of error of just 20 nanometers. This technique removes a major hurdle for the large-scale integration of molecular devices on chips. As a demonstration of the technique’s capabilities the group has created one of the world's smallest reproductions of Vincent van Gogh's The Starry Night. [Caltech story]

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Professor Murray Receives IEEE Control Systems Award


Richard M. Murray, Thomas E. and Doris Everhart Professor of Control and Dynamical Systems and Bioengineering, is the recipient of the 2017 IEEE Control Systems Award, for outstanding contributions to control systems engineering, science, or technology. Professor Murray is receiving the award, “for contributions to the theory and applications of nonlinear and networked control systems." [List of award recipients]

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Best Paper Award at Symposium on Geometry Processing


Professor Mathieu Desbrun and colleagues’ paper, Symmetry and Orbit Detection via Lie-Algebra Voting, has won the best paper award at the Symposium on Geometry Processing. The award is giving by the Geometry Processing community to authors of seminal papers. The aim is to feature the scientific highlights and breakthroughs in the field and to promote the reproducibility of research results. [Read the paper]

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Community Seismic Network Detected Air Pulse From Refinery Explosion


The Community Seismic Network’s (CSN) tight network of low-cost detectors are improving the resolution of seismic data gathering and could offer city inspectors crucial information on building damage after a quake. On February 18, 2015, an explosion rattled the ExxonMobil refinery in Torrance, causing ground shaking equivalent to that of a magnitude-2.0 earthquake and blasting out an air pressure wave similar to a sonic boom. Traveling at 343 meters per second the air pressure wave reached a 52-story high-rise in downtown Los Angeles 66 seconds after the blast. The building's seismometers, which are part of the CSN, noted and recorded the motion of each individual floor. "We want first responders, structural engineers, and facilities engineers to be able to make decisions based on what the data say," explained Monica Kohler, Research Assistant Professor of Mechanical and Civil Engineering, and the lead author of a paper detailing the high-rise's response that recently appeared in the journal Earthquake Spectra. [Caltech story]

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