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Autonomous taxis would deliver significant environmental and economic benefits

A new study from Lawrence Berkeley National Laboratory found that autonomous taxis could significantly reduce per-mile greenhouse gas emissions, with savings ranging from 63-82% compared to hybrid vehicles and 90% compared to gasoline-powered cars. The use of right-sizing, where the size of the taxi is tailored to each trip's occupancy...

SourceDOE/Lawrence Berkeley National Laboratory·JournalNature Climate Change·DateJul 6, 2015

Scientists tune X-rays with tiny mirrors

Researchers at Argonne National Laboratory develop a new way of manipulating high-intensity X-rays using a small microelectromechanical system (MEMS) mirror. The device acts as an ultrafast mirror reflecting X-rays at precise times and specific angles, allowing for the selection of extremely brief but precise X-ray bursts.

SourceDOE/Argonne National Laboratory·JournalNature Communications·DateJun 11, 2015

Lawrence Livermore researchers use seismic signals to track above-ground explosions

Researchers created a method to determine source characteristics of near-earth surface explosions using seismic stations in Turkey. They found the Syrian tunnel bomb blast was likely around 40 tons, contradicting initial claims of 60 tons. The technique serves as a forensic tool for investigators and governmental agencies.

SourceDOE/Lawrence Livermore National Laboratory·JournalGeophysical Research Letters·DateMay 21, 2015

Self-destructive effects of magnetically-doped ferromagnetic topological insulators

A new study reveals extreme disorder in a fundamental property of the surface electrons known as the Dirac mass in ferromagnetic topological insulators. The research found that the disorder is directly related to fluctuations in the density of magnetic dopant atoms on different parts of the crystal surface.

SourceDOE/Brookhaven National Laboratory·JournalProceedings of the National Academy of Sciences·DateJan 19, 2015

Fueling the future

A team of researchers at Argonne National Laboratory has developed an integrated modeling approach to understand the fluid dynamics of fuel injectors in modern engines. The study aims to improve engine design and simulation, reducing trial and error and increasing efficiency.

Lawrence Livermore researchers develop efficient method to produce nanoporous metals

Nanoporous metals with superior qualities have numerous applications due to their high surface area for electron transfer and increased sites for analyte adsorption. Lawrence Livermore National Laboratory researchers developed a cost-effective method to manufacture nanoporous metals over various scales, from nanoscale to macroscale.

SourceDOE/Lawrence Livermore National Laboratory·JournalAdvanced Materials Interfaces·DateNov 25, 2014

LLNL researchers develop high-quality 3-D metal parts using additive manufacturing

Researchers at Lawrence Livermore National Laboratory have developed a new and efficient approach to 3D metal parts using selective laser melting. They used simple simulations and experiments to identify optimal parameters for high-density metal parts, which can be used to certify properties of metal parts built using SLM.

SourceDOE/Lawrence Livermore National Laboratory·JournalThe International Journal of Advanced Manufacturing Technology·DateJun 16, 2014