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Winners of the 2015 Demetriades - Tsafka - Kokkalis Prizes Announced

06-09-15

The student winners of the 2015 Demetriades - Tsafka - Kokkalis Prizes were announced at a special luncheon with the Demetriades - Tsafka – Kokkalis family. Alborz Mahdavi received the prize in Biotechnology for his work with David Tirrell developed a set of important new tools for analyzing protein synthesis in complex biological systems. Srivatsan Hulikal was the recipient of the prize in Seismo-Engineering, Prediction, and Protection for his work with Nadia Lapusta on linking macroscopic frictional properties of interfaces to their micromechanics. Lingwen Gan working with Steven Low received the prize in Environmentally Benign Renewable Energy Sources for his work on sustainable power systems and specifically the control and optimization of distributed energy resources in future smart grids. The winner of the prize in Nanotechnology was Niranjan Srinivas  for designing and building a system of DNA machines that, in bulk, implement an oscillator. Niranjan's advisor was Erik Winfree.

Tags: EE honors MCE CMS Demetriades - Tsafka - Kokkalis Prizes Erik Winfree Nadia Lapusta Steven Low Alborz Mahdavi David Tirrell Srivatsan Hulikal Lingwen Gan Niranjan Srinivas

Faulty Behavior

01-09-13

Nadia Lapusta, Professor of Mechanical Engineering and Geophysics, and colleagues have created new earthquake fault models showing that “stable” zones may contribute to the generation of massive earthquakes. "Lapusta and Noda's realistic earthquake fault models are critical to our understanding of earthquakes—knowledge that is essential to reducing the potential catastrophic consequences of seismic hazards," says Chair Ares Rosakis. "This work beautifully illustrates the way that fundamental, interdisciplinary research in the mechanics of seismology at Caltech is having a positive impact on society." [Caltech Release]

Tags: research highlights MCE Nadia Lapusta

Greater Insight into Earthquake Cycles

05-10-12

Nadia Lapusta, Professor of Mechanical Engineering and Geophysics, and colleagues have developed the first computer model of an earthquake-producing fault segment that reproduces, in a single physical framework, the available observations of both the fault's seismic (fast) and aseismic (slow) behavior. "Earthquake science is on the verge of building models that are based on the actual response of the rock materials as measured in the lab—models that can be tailored to reproduce a broad range of available observations for a given region," says Lapusta. "This implies we are getting closer to understanding the physical laws that govern how earthquakes nucleate, propagate, and arrest." [Caltech Press Release]

Tags: research highlights MCE Nadia Lapusta

Aseismic Slip as a Barrier to Earthquake Propagation

05-06-10

Tectonics Observatory researchers including Nadia Lapusta, Associate Professor of Mechanical Engineering and Geophysics, have explored the effects of aseismic slip in the aftermath of the 2007 Peru earthquake. "This large area of aseismic slip is good news," says Jean-Philippe Avouac, Director of the Tectonics Observatory and Professor of Geology. "It lowers the seismic hazard in that region, and allows us to be a little bit predictive. We cannot tell you when there will be an earthquake, but we can tell you where there is stress buildup, and where there is no stress buildup. Where there is no stress buildup, there will be no seismic rupture. That is where the earthquakes are going to stop." [Caltech Press Release]

Tags: research highlights MCE Nadia Lapusta Jean-Philippe Avouac