Deep learning infiltrating HPC physics domains
Fluid dynamics model, from Next Platform.
Researchers from Los Alamos National Lab compared three deep learning models, generative adversarial networks, LAT-NET, and LSTM against their own observations about homogeneous, isotropic, and stationary turbulence and found that deep learning, “which do not take into account any physics of turbulence explicitly, are impressively good overall when it comes to qualitative description of important features of turbulence.” Even still, they add that there are some shortcomings that can be addressed by making corrections to the deep learning frameworks through reinforcement of special features of turbulence that the models do not pick out on their own after training. (Full story)
New space instrument goes for a spin
The High Explosives Centrifuge in action,
LANL photo.
Scientists and engineers at Los Alamos National Laboratory are using a unique centrifuge facility to evaluate a flight-ready telemetry system for evaluating a nuclear weapons test missile launch.
"The purpose of the centrifuge test is to subject the electronics to a high gravitational load (G-load) that's representative of what the system will experience when re-entering the Earth's atmosphere," said weapons test engineer Alex Cusick. (Full story) See the video at: https://youtu.be/gZ1e_N63W7E
Also in the Los Alamos Daily Post
Bizarre particles keep flying out of Antarctica's ice
A team prepares ANITA for flight over
the Antarctic ice, NASA photo.
Since March 2016, researchers have been puzzling over two events in Antarctica where cosmic rays did burst out from the Earth, and were detected by NASA's Antarctic Impulsive Transient Antenna (ANITA)
"I think it's very compelling," said Bill Louis, a neutrino physicist at Los Alamos National Laboratory who was not involved in the paper and has been following research into the ANITA events for several months. (Full story)
How not to be fooled in physics
Original LSND experiment at Los Alamos.
LANL photo.
In the 1990s, an experiment conducted in Los Alamos, about 35 miles northwest of the capital of New Mexico, appeared to find something odd.
Scientists designed the Liquid Scintillator Neutrino Detector experiment at the US Department of Energy’s Los Alamos National Laboratory to count neutrinos, ghostly particles that come in three types and rarely interact with other matter. LSND was looking for evidence of neutrino oscillation, or neutrinos changing from one type to another. (Full story)
First Los Alamos Global Security Medal awarded
Marc Kippen, LANL photo.
R. Marc Kippen is the first recipient of the Los Alamos Global Security Medal, with Los Alamos National Laboratory announcing it Sept. 24 and reporting it recognizes his innovative professional and scientific excellence supporting the laboratory's global security mission -- specifically, Kippen's leadership and achievements in developing, promoting, and sustaining national security capabilities and programs in space-based sensing and nuclear detonation detection. (Full story)
