Category Technology/Electronics

A safe nuclear battery that could last a lifetime

A safe nuclear battery that could last a lifetime
A small dye-sensitized betavoltaic cell has radiocarbon on both the cathode and anode, which increases its energy-conversion efficiency. Credit: Su-Il In

Sometimes cell phones die sooner than expected or electric vehicles don’t have enough charge to reach their destination. The rechargeable lithium-ion (Li-ion) batteries in these and other devices typically last hours or days between charging. However, with repeated use, batteries degrade and need to be recharged more frequently.

Now, researchers are considering radiocarbon as a source for safe, small and affordable nuclear batteries that could last decades or longer without charging.

Su-il In, a professor at Daegu Gyeongbuk Institute of Science & Technology, presents his results at the spring meeting of the American Chemical Soc...

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Supercomputing memory management tool makes data storage more efficient

Wall of black computer chords with blue wiring

Researchers from the Department of Energy’s Oak Ridge National Laboratory have developed a new application to increase efficiency in memory systems for high-performance computing.

Rather than allow data to bog down traditional memory systems in supercomputers and impact performance, the team from ORNL, along with researchers from the University of Tennessee, Knoxville, created a framework to manage data more efficiently with memory systems that employ more complex structures. Research papers detailing their work were recently accepted in ACM Transactions on Architecture and Code Optimization and the International Journal of High-Performance Computing Applications.

Working under the Exascale Computing Project, or ECP, a multi-year software research, development and deployment pro...

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Electronics-free robots can walk right off the 3D-printer

This robot can walk, without electronics, and only with the addition of a cartridge of compressed gas, right off the 3D-printer. Credit: David Baillot/University of California San Diego

Imagine a robot that can walk, without electronics, and only with the addition of a cartridge of compressed gas, right off the 3D-printer. It can also be printed in one go, from one material.

That is exactly what roboticists have achieved in robots developed by the Bioinspired Robotics Laboratory at the University of California San Diego. They describe their work in an advanced online publication in the journal Advanced Intelligent Systems.

To achieve this feat, researchers aimed to use the simplest technology available: a desktop 3D-printer and an off-the-shelf printing material...

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Engineers develop hybrid robot that balances strength and flexibility—and can screw in a lightbulb

Northeastern engineers develop hybrid robot that balances strength and flexibility — and can screw in a lightbulb
Jeffrey Lipton, assistant professor of mechanical and industrial engineering at Northeastern, has developed a hybrid soft and hard robot. Credit: Matthew Modoono/Northeastern University

How many robots does it take to screw in a lightbulb? The answer is more complicated than you might think. New research from Northeastern University upends the riddle by making a robot that is both flexible and sensitive enough to handle the lightbulb, and strong enough to apply the necessary torque.

“What we found is that by thinking about the bodies of robots and how we can make new materials for them, we can actually make a robot that has the benefits of both rigid and soft robots,” says Jeffrey Lipton, assistant professor of mechanical and industrial engineering at Northeastern.

“It’s flexible...

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