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Microstructures Self-Assemble into New Materials

03-03-20

A new process developed at Caltech makes it possible for the first time to manufacture large quantities of materials whose structure is designed at a nanometer scale—the size of DNA's double helix. Pioneered by Professor Julia R. Greer, "nanoarchitected materials" exhibit unusual, often surprising properties—for example, exceptionally lightweight ceramics that spring back to their original shape, like a sponge, after being compressed. Now, a team of engineers at Caltech and ETH Zurich have developed a material that is designed at the nanoscale but assembles itself—with no need for the precision laser assembly. "We couldn't 3-D print this much nanoarchitected material even in a month; instead we're able to grow it in a matter of hours," says Carlos M. Portela, Postdoctoral Scholar. "It is exciting to see our computationally designed optimal nanoscale architectures being realized experimentally in the lab," says Dennis M. Kochmann, Visiting Associate. [Caltech story]

Tags: APhMS research highlights GALCIT MCE Julia Greer Dennis Kochmann Carlos Portela

Best Paper Award

10-30-19

Postdoctoral Scholar Carlos M. Portela, working with Professor Julia Greer and Dennis Kochmann, has won the Gold Paper Award. The title of the paper is "Supersonic Impact on Carbon Nano-architected Materials." The award was granted to the best student contribution across all topic areas at the Society of Engineering Science (SES) 56th Technical Meeting.

Tags: APhMS honors Julia Greer Dennis Kochmann Carlos Portela

"Neural Lander" Uses AI to Land Drones Smoothly

05-23-19

Professors Chung, Anandkumar, and Yue have teamed up to develop a system that uses a deep neural network to help autonomous drones "learn" how to land more safely and quickly, while gobbling up less power. The system they have created, dubbed the "Neural Lander," is a learning-based controller that tracks the position and speed of the drone, and modifies its landing trajectory and rotor speed accordingly to achieve the smoothest possible landing. The new system could prove crucial to projects currently under development at CAST, including an autonomous medical transport that could land in difficult-to-reach locations (such as a gridlocked traffic). "The importance of being able to land swiftly and smoothly when transporting an injured individual cannot be overstated," says Professor Gharib who is the director of CAST; and one of the lead researchers of the air ambulance project. [Caltech story]

Tags: research highlights Morteza Gharib Yisong Yue Soon-Jo Chung Animashree Anandkumar

President Rosenbaum Highlights Postdocs as "Unsung Heroes"

09-24-18

In a letter to the Caltech community during National Postdoc Appreciation Week, the Caltech President emphasizes the role this key group plays at the Institute. He stated, “Caltech's mission of world-leading research and education depends crucially on our postdoctoral scholars. Although their time at Caltech may be short, they quickly become vital parts of the Institute's intellectual fabric.” [President’s Letter] [EAS Postdoc Resource Page]

Tags: APhMS EE GALCIT MedE MCE CMS ESE Thomas Rosenbaum postdocs

A Gift of Autonomy

06-21-18

Trustees Lynn Booth and Kent Kresa have decided to endow the Booth-Kresa Leadership Chair for Center for Autonomous Systems and Technologies (CAST). Professor Mory Gharib explains, “in science and technology, freedom is the most powerful gift you can offer. The Booth-Kresa Leadership Chair will help ensure that CAST can move nimbly into our emerging more autonomous future, unleashing the creativity of our faculty, students, and scholars. I am personally grateful to Lynn and Kent for their generosity, enthusiasm, and trust in our vision.” [Breakthrough story]

Tags: GALCIT Morteza Gharib Kent Kresa Lynn Booth Caltech Trustees

The Future is Autonomous

05-01-17

On April 19, 2017 Electrical Engineering alumnus Evangelos Simoudis (BS '83) moderated a panel titled "The Road Ahead: A Panel on the Future of Driverless Vehicles," hosted by the Caltech Associates. The panel members were Professors Mory Gharib, Richard Murray, and Pietro Perona, along with Reuters automotive industry reporter, Paul Lienert. They discuss a variety of opportunities and challenges associated with autonomous technologies and systems. Beyond the legal and ethical challenges, several technological obstacles must be overcome before driverless cars become common on the road. One key challenge is teaching driverless cars how to read the behavior of other cars and react accordingly. Professor Perona described the problem of a car attempting to merge onto a crowded freeway. A driverless car would see an impenetrable wall of vehicles, but a human driver could edge forward and wave at other drivers to work his or her way into the line of traffic. [Caltech story]

Tags: EE GALCIT CMS Morteza Gharib Pietro Perona alumni Richard Murray Evangelos Simoudis Paul Lienert

2017 Caltech Space Challenge

04-03-17

Last week 32 students from around the world met up at Caltech for the 2017 Caltech Space Challenge. This year’s competition involved designing a launch-and-supply station—dubbed Lunarport—for future space missions. Lunar in-situ resource utilization could allow larger payloads to be launched from Earth, bringing deep-space a little closer for human exploration. The Caltech student organizers were Ilana Gat and Thibaud Talon. The Caltech and JPL faculty advisers were Professor Paul Dimotakis, Dr. Jakob van Zyl, and Dr. Anthony Freeman. It was an extremely close competition but Team Explorer was finally called the winner because their business plan and cost estimates were more realistic than those of Team Voyager. [Pasadena Weekly] [Radio interview with Ilana Gat] [Caltech story]

Tags: GALCIT Paul Dimotakis Space Challenge Jakob van Zyl Ilana Gat Thibaud Talon Anthony Freeman

Mechanics of Materials Across Nano to Geological Time and Length Scales

09-29-16

A symposium was organized at Brown University on September 16-17, 2016 to celebrate the technical contributions of Professor Ares Rosakis on the occasion of his 60th birthday. The symposium was chaired by Professors Pradeep Guduru, Huajian Gao, and G. Ravichandran. It brought together distinguished engineers and scientists from multiple disciplines to discussion research frontiers relating to the mechanics of materials across nano to geological time and length scales. [Symposium program] [Photos]

Tags: research highlights Guruswami Ravichandran Ares Rosakis Pradeep Guduru Huajian Gao

Professor Dimotakis Elected to the National Academy of Engineering

02-09-16

Paul E. Dimotakis, John K. Northrop Professor of Aeronautics and Professor of Applied Physics, has been elected to the National Academy of Engineering (NAE). Professor Dimotakis was elected for his contributions to the fluid mechanics of jet propulsion and other processes involving turbulence, mixing, and transport. [Caltech story]

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Tags: APhMS honors GALCIT Paul Dimotakis National Academy of Engineering Adam Steltzner

Dr. van Zyl Receives Honorary Doctorate

10-02-15

Dr. Jakob J. van Zyl (PhD ’86 EE), Caltech Senior Faculty Associate in Electrical Engineering and Aerospace, as well as the Associate Director of Project Formulation and Strategy at JPL, will receive an honorary Doctor of Engineering (DIng) degree from Stellenbosch University in South Africa. Dr. van Zyl was born in Outjo, Namibia and received his first degree in electrical engineering from the University of Stellenbosch . He then came to Caltech where he obtained his Masters and PhD in electrical engineering.

Tags: EE honors GALCIT alumni JPL Jakob van Zyl