News & Events


Dragonfly Larvae Inspire New Designs for Prosthetic Heart Valves


Professor Mory Gharib and postdoctoral researcher Chris Roh (MS '13, PhD '17) have studied the design and control of the jets that dragonfly larvae use to propel themselves to re-design health values. "The current heart valve design is a one-size-fits-all, where no patient-specific design is considered, and this causes many post-transplant complications," Dr. Roh says. "We believe that an intentionally off-centered opening of the heart valve to more closely match the patient's original blood flow will be an important design parameter that can be adjusted based on each patient's heart morphology." [Caltech story]

Tags: research highlights GALCIT MedE Morteza Gharib Chris Roh postdocs

No Motor, No Battery, No Problem


Chiara Daraio, Professor of Mechanical Engineering and Applied Physics, and colleagues have developed robots capable of self-propulsion without using any motors, servos, or power supply. Instead, these first-of-their-kind devices paddle through water as the material they are constructed from deforms with temperature changes. "Combining simple motions together, we were able to embed programming into the material to carry out a sequence of complex behaviors," says Caltech postdoctoral scholar Osama R. Bilal, who is co-first author of the PNAS paper is titled "Harnessing bistability for directional propulsion of soft, untethered robots." [Caltech story]

Tags: research highlights Chiara Daraio MCE APh postdocs Osama Bilal

Solving Pieces of the Genetic Puzzle


Postdoctoral scholar Nathan Belliveau working in the laboratory of Professor Rob Phillips has applied a method called Sort-Seq to mutate small pieces of noncoding regions in E. coli and determined which regions contain binding sites. Binding sites are the locations where specialized proteins that are involved in transcription—the first step in the process of gene expression—attach to DNA. "Humans have such a wide variety of cells—muscle cells, neurons, photoreceptors, blood cells, to name a few," says Professor Phillips. "They all have the same DNA, so how do they each turn out so differently? The answer lies in the fact that genes can be regulated—turned on or off, dialed up and dialed down—differently in different tissues. Until now, there have been no general principles to help us understand how this regulation was encoded." [Caltech story]

Tags: research highlights Rob Phillips APh postdocs Nathan Belliveau

Professor Hou Receives SIAM Outstanding Paper Prize


Yizhao T. (Thomas) Hou, Charles Lee Powell Professor of Applied and Computational Mathematics, and his former postdoc Dr. Guo Luo are recipients of the Society for Industrial and Applied Mathematics (SIAM) 2018 Outstanding Paper Prize for their paper entitled Toward the Finite-Time Blowup of the 3D Axisymmetric Euler Equations: A Numerical Investigation. The prizes are given for outstanding papers published in SIAM journals during the three years prior to the year of the award. [Read the paper]

Tags: honors CMS Thomas Hou postdocs Guo Luo

Best Poster Award At Neural Information Processing Systems Conference


CMS postdoctoral scholar Qi (Rose) Yu, working with Professor Anandkumar, and graduate student Stephan Zheng, working with Professor Yue, have won the Best Poster Presentation Award at the 2017 Neural Information Processing Systems (NIPS) Time Series Workshop. Dr. Yu works on the challenge of long-term forecasting in environments with nonlinear dynamics such as those involving climate and traffic data. She is tackling this challenge uses Tensor-Train RNN which are a novel family of neural sequence models that learn nonlinear dynamics directly using higher order moments and high-order state transition functions. [View her poster]

Tags: honors CMS Yisong Yue Animashree Anandkumar postdocs Qi (Rose) Yu Stephan Tao Zheng

Post Doctoral Scholar Receives Prize for Best Thesis in Mechanics in France


Stella Brach, Postdoctoral Scholar in Mechanical and Civil Engineering, has won the 2017 Paul Germain Prize.The prize is awarded once every two years during the French National Congress on Mechanics for the best PhD thesis in Mechanics. [Read her thesis]

Tags: honors MCE Stella Brach postdocs

IEEEĀ American Control Conference Best Student Paper Award


Postdoctoral Scholar Nikolai Matni and alumnus Yuh-Shyang Wang, working with Professor John Doyle, have received the Best Student Paper Award at the IEEE American Control Conference 2017 for the paper entitled System level parameterizations, constraints and synthesis. [Read the paper]

Tags: EE CMS alumni John Doyle Nikolai Matni Yuh-Shyang Wang postdocs

Best Paper At Conference on Uncertainty in Artificial Intelligence


Leonard J. Schulman, Professor of Computer Science, and postdoctoral scholar Piyush Srivastava have won the best paper award at the 2016 Conference on Uncertainty in Artificial Intelligence for their paper, Stability of Causal Inference. [Read the paper]

Tags: research highlights CMS Leonard Schulman Piyush Srivastava postdocs

Solar Powered, Electrochemical, Wastewater Treatment System


Cody Finke, Environmental Science and Engineering graduate student, and Justin Jasper, Resnick Sustainability Institute Prize Postdoctoral Scholar, are the runner ups for the Dow Resnick Sustainability Innovation Student Challenge Award (SISCA) at Caltech. They have been working Professor Michael Hoffmann to enhance a modular, solar powered, electrochemical, on-site wastewater treatment system created by their group for toilets in the developing and developed world. With an operating cost of less than 5 US cents per day, this wastewater treatment technology meets benchmarks for affordability in the developing world. It also has the potential to protect human health and ecosystem well-being in communities most at risk to disease and resource-loss through environmental pollution. [Resnick Institute story]

Tags: honors energy research highlights health ESE Michael Hoffmann Cody Finke Justin Jasper postdocs

Popping Microbubbles Help Focus Light Inside the Body


Changhuei Yang, Professor of Electrical Engineering, Bioengineering, and Medical Engineering, and his postdoctoral colleague Dr. Haowen Ruan have developed a novel technique called time-reversed ultrasound microbubble encoded (TRUME) that uses gas-filled microbubbles to focus light inside tissue. "Ultrasound and X-ray techniques can only detect cancer after it forms a mass," Yang says. "But with optical focusing, you could catch cancerous cells while they are undergoing biochemical changes but before they undergo morphological changes." [Caltech story]

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