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Advancing New Battery Design with Deep Learning

Semantic segmentation: Automated detection of dendrites (blue) and pitts (red) using Y-net, a deep-learning algorithm to automate the quality control and assessment of new battery designs that was run at NERSC on Cori and Perlmutter.

Michael Mahoney Tapped to Lead the Machine Learning and Analytics Group

Hydrogen Fuel Cells: An Environmentally Friendly Alternative

Hydrogen Fuel Cell Electric Vehicles: How they Work Hydrogen fuel cell electric vehicles (FCEVs) are similar to electric vehicles in that they use an electric motor instead of an internal combustion engine to power the wheels. However, while electric vehicles run on batteries that must be plugged in to recharge, FCEVs generate their electricity onboard. In a fuel cell, hydrogen gas from the vehicle’s fuel tank combines with oxygen from the air to generate electricity with only water and heat as byproducts of the process. Fueling a hydrogen FCEV is similar to refilling a vehicle’s gas tank, but using a nozzle from a designated hydrogen dispenser at a public station. Refueling times are also similar: FCEVs can be refueled in as little as 5 minutes. Some FCEVs can go more than 300 miles on one tank of hydrogen fuel — greater than the distance from St. Louis to Chicago — and fuel economy close to 70 MPGe (miles per gasoline gallon equivalent). For more details about hydrogen FCEVs and how they work, visit this U.S. Environmental Protection Agency information site.

Berkeley Lab Computing Resources Enable Deeper Understanding of Supernovae Explosions

A dead star explodes as a Type Ia supernova. (Image credit: NASA)

X-Ray Crystallography Goes Even Tinier

A new method for x-ray crystallography expands the technique to identify the structures of molecules that don't easily form large, symmetrical nanocrystals.

HYPPO: Leveraging Prediction Uncertainty to Optimize Deep Learning Models for Science

Climate Simulations Redefine Causes of North American Monsoon

The North American Monsoon pattern can cause heavy rainfall in Mexico and the American Southwest in the late summer. New research using a more granular model shows that this monsoon is mechanically, rather than thermally, forced.

Hopper Fellow Brings ML, Math, and Algorithmic Expertise to NERSC

Richard Barnes

Open Sourced Control Hardware for Quantum Computers

Cutting Through the Noise

The researchers demonstrated this new error mitigation approach by simulating the evolution of a chain of six spins (top). Simulating for the longest time requires a circuit that contains 210 CNOT gates. The comparison of the real data from the quantum computer and the mitigated data shows how close the group’s approach comes to the exact results.

AMCRD’s Sherry Li Part of Team Honored by SIAM for Best Paper

Sherry Li stands with arms crossed in front of a whiteboard filled with complex mathematical equations, diagrams, and notes. The whiteboard includes various symbols, graphs, and annotations related to statistical models, including a hidden Markov model. The individual is dressed in a dark, long-sleeved top, and the background is a classroom or office setting, suggesting an academic or research environment.

Postdocs Present Wide-Ranging Research at 2022 Symposium

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