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Feb 28, 2021

Supercomputer-Powered Machine Learning Supports Fusion Energy Reactor Design

Posted by in categories: nuclear energy, particle physics, robotics/AI, supercomputing

Energy researchers have been reaching for the stars for decades in their attempt to artificially recreate a stable fusion energy reactor. If successful, such a reactor would revolutionize the world’s energy supply overnight, providing low-radioactivity, zero-carbon, high-yield power – but to date, it has proved extraordinarily challenging to stabilize. Now, scientists are leveraging supercomputing power from two national labs to help fine-tune elements of fusion reactor designs for test runs.

In experimental fusion reactors, magnetic, donut-shaped devices called “tokamaks” are used to keep the plasma contained: in a sort of high-stakes game of Operation, if the plasma touches the sides of the reactor, the reaction falters and the reactor itself could be severely damaged. Meanwhile, a divertor funnels excess heat from the vacuum.

In France, scientists are building the world’s largest fusion reactor: a 500-megawatt experiment called ITER that is scheduled to begin trial operation in 2025. The researchers here were interested in estimating ITER’s heat-load width: that is, the area along the divertor that can withstand extraordinarily hot particles repeatedly bombarding it.

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Feb 28, 2021

This robot sweats to cool itself down

Posted by in category: robotics/AI

Wait, robots can sweat now?

Feb 27, 2021

Perseverance’s Eyes See a Different Mars

Posted by in categories: robotics/AI, space

The Red Planet’s red looks different to an Earthling than it would to a Martian—or to a robot with hyperspectral cameras for eyes.

Feb 27, 2021

Video shows NYPD’s new robotic dog in action in the Bronx

Posted by in category: robotics/AI

Who’s a good bot?

The NYPD deployed its new robotic dog to a home invasion crime scene in the Bronx on Tuesday morning, new video shows.

Video shows the blue and black, four-legged “Digidog” trotting along the sidewalk, joined by its handlers.

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Feb 27, 2021

Researchers examine how multilingual BERT models encode grammatical features

Posted by in category: robotics/AI

Over the past few decades, researchers have developed deep neural network-based models that can complete a broad range of tasks. Some of these techniques are specifically designed to process and generate coherent texts in multiple languages, translate texts, answer questions about a text and create summaries of news articles or other online content.

Feb 27, 2021

The current pandemic highlights how remote healthcare robots could be beneficial in the future

Posted by in categories: biotech/medical, robotics/AI

Robots that could take on basic healthcare tasks to support the work of doctors and nurses may be the way of the future. Who knows, maybe a medical robot can prescribe your medicine someday? That’s the idea behind 3D structural-sensing robots being developed and tested at Simon Fraser University by Woo Soo Kim, associate professor in the School of Mechatronic Systems Engineering.

Feb 27, 2021

Explainable AI: A must for nuclear nonproliferation, national security

Posted by in categories: robotics/AI, security, transportation

We’ve all met people so smart and informed that we don’t understand what they’re talking about. The investment advisor discussing derivatives, the physician elaborating about B cells and T cells, the auto mechanic talking about today’s computerized engines—we trust their decisions, even though we do not completely grasp the meaning of their words.

Feb 27, 2021

Revive the map: 4D building reconstruction with machine learning

Posted by in categories: mapping, robotics/AI

A research team from Skoltech and FBK (Italy) has presented a methodology to derive 4D building models using historical maps and machine learning. The implemented method relies on geometric, neighborhood, and categorical attributes in order to predict building heights. The method is useful for understanding urban phenomena and changes that contributed to defining our cities’ actual shape. The results were published in Applied Sciences.

Feb 27, 2021

AI predicts if storms will cause blackouts many days in advance

Posted by in categories: climatology, robotics/AI

In Finland, stormy weather can happen at any time of year. This is an issue because Finland is heavily forested, and falling trees can knock out power lines and disable transformers, causing power blackouts for hundreds of thousands of people a year. Researchers at Aalto University and the Finnish Meteorological Institute (FMI) are using artificial intelligence and machine learning to try and predict when these weather-inflicted blackouts happen. Their new method can now predict these storms days in advance, allowing electricity companies to prepare their repair crews before the storm has even happened.

Feb 26, 2021

A deep learning technique to solve Rubik’s cube and other problems step-by-step

Posted by in category: robotics/AI

Colin G. Johnson, an associate professor at the University of Nottingham, recently developed a deep-learning technique that can learn a so-called “fitness function” from a set of sample solutions to a problem. This technique, presented in a paper published in Wiley’s Expert Systems journal, was initially trained to solve the Rubik’s cube, the popular 3D combination puzzle invented by Hungarian sculptor Ernő Rubik.

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