News

Work resumes in support of stockpile modernization

June 3, 2020- 
The effort to resume hands-on work in support of stockpile modernization programs reached a major milestone May 7 with the successful execution of a focused experiment at the High Explosives Applications Facility (HEAF) at Lawrence Livermore National Laboratory (LLNL). The experiment is the first using high explosives at the Laboratory since Alameda County issued a shelter-in-place order...

Pinpointing the effects of nanoconfinement on water

June 2, 2020- 
Researchers have spent decades studying the properties of water and how they change when there are disruptions to their normal behavior. Research on the topic has a wide range of applications, from biochemical systems to water desalination. A team of scientists from Lawrence Livermore National Laboratory (LLNL), Argonne National Laboratory and the University of Chicago explored how the...

LLNS, North Wind sign supplemental labor agreement

June 1, 2020- 
North Wind Services (NWS), LLC, has been selected by Lawrence Livermore National Security (LLNS) as the supplemental labor provider for Lawrence Livermore National Laboratory (LLNL). LLNS manages the Laboratory for the U.S. Department of Energy/National Nuclear Security Administration. The transition from Akima Infrastructure Services (AIS), the current supplemental labor provider, to NWS...

Lab team studies calibrated AI and deep learning models to more reliably diagnose and treat disease

May 29, 2020- 
As artificial intelligence (AI) becomes increasingly used for critical applications such as diagnosing and treating diseases, predictions and results regarding medical care that practitioners and patients can trust will require more reliable deep learning models. In a recent preprint (available through Cornell University’s open access website arXiv), a team led by a Lawrence Livermore...

Lab activities increase, but remote work will continue

May 28, 2020- 
Since I spoke to you during my virtual all hands meeting, activity at the Laboratory has continued to increase, with approximately 25 percent of the Lab’s workforce now on site to support work prioritized by the National Nuclear Security Administration (NNSA), as well as some non-NNSA work supported by other sponsors. The scope of these efforts puts us in a new posture defined by NNSA as...

Simulations explain detonation properties in TATB

May 26, 2020- 
Two Lawrence Livermore National Laboratory (LLNL) scientists have discovered a new mechanism for ignition of high explosives that explains the unusual detonation properties of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB). The research will allow for systematic improvements to continuum mechanics models used to assess the performance and safety of the material accurately and reliably. Hi...

AI identifies change in microstructure in aging materials

May 26, 2020- 
Lawrence Livermore National Laboratory (LLNL) scientists have taken a step forward in the design of future materials with improved performance by analyzing its microstructure using AI. The work recently appeared online in the journal Computational Materials Science. Technological progress in materials science applications spanning electronic, biomedical, alternate energy, electrolyte...

Lab provides assistance in national swab shortage

May 21, 2020- 
In this era of COVID-19, tracking the disease adequately enough to allow state and local officials to lift shelter-in-place orders and return to a semblance of normalcy in the absence of a vaccine will require widespread testing, according to medical experts. However, such extensive testing efforts have been hampered due to a shortage of nasopharyngeal (NP) swabs, the preferred tool used by...

Membrane nanopore transport gets picky

May 20, 2020- 
Trying to determine how negatively charged ions squeeze through a carbon nanotube 20,000 times smaller than a human hair is no easy feat. Not only did Lawrence Livermore National Laboratory (LLNL) scientists do that but they found that those ions are unexpectedly picky depending on the anion (a negatively charged ion). The research appears in ACS Nano. Inner pores of carbon nanotubes...

COVID-19 research goes public through new portal

May 18, 2020- 
To help accelerate discovery of therapeutic antibodies or antiviral drugs for SARS-CoV-2, the virus that causes COVID-19, Lawrence Livermore National Laboratory (LLNL) has launched a searchable data portal to share its COVID-19 research with scientists worldwide and the general public. The portal houses a wealth of data LLNL scientists have gathered from their ongoing COVID-19 molecular...

LLNL team helps develop tularemia vaccine

May 18, 2020- 
Two Lawrence Livermore National Laboratory (LLNL) researchers who have worked for more than eight years to develop a tularemia vaccine are part of a three-institution team that has been funded to bring their candidate to readiness for use. The two biomedical scientists, Nick Fischer and Amy Rasley, will collaborate with scientists from the University of New Mexico and the Tulane National...

Deactivating coronavirus on N95 respirators for reuse

May 14, 2020- 
Lawrence Livermore National Laboratory (LLNL) researchers are studying ways to safely and rapidly remove viral threats from N95 respirators, without compromising the device’s fit and its ability to filter airborne particles, so they can be reused. As seen during the COVID-19 pandemic, a shortage of personal protective equipment, including surgical masks and respirators, can impede efforts...

Building scientific insight through machine learning

May 13, 2020- 
A team of Lawrence Livermore National Laboratory (LLNL) materials and computer scientists developed machine learning tools that extract and structure information from the text and figures of nanomaterials articles using state-of-the-art natural language processing, image analysis, computer vision and visualization techniques. They are applying this technique to COVID-19 literature to...

Lab devises plan to reduce defects in 3D metal printing

May 7, 2020- 
Combining high-fidelity computer simulations with ultra-high-speed X-ray imaging, researchers at Lawrence Livermore National Laboratory (LLNL) have discovered a strategy for reducing or even eliminating defects in parts built through a common, laser-based metal 3D-printing process. In work published by the journal Science, a research team at LLNL, along with collaborators at the Air Force...

Second skin protects against chem, bio agents

May 6, 2020- 
Recent events such as the COVID-19 pandemic and the use of chemical weapons in the Syria conflict have provided a stark reminder of the plethora of chemical and biological threats that soldiers, medical personnel and first responders face during routine and emergency operations. Personnel safety relies on protective equipment which, unfortunately, still leaves much to be desired. For...

Spring 2020 solicitation for HPC4EI Program now open

May 5, 2020- 
The U.S. Department of Energy (DOE) and Lawrence Livermore National Laboratory (LLNL) today issued the spring 2020 solicitation for the High Performance Computing for Energy Innovation (HPC4EI) Program, aimed at improving manufacturing processes and energy efficiency through supercomputing. Managed by LLNL, the HPC4EI Program provides industry with HPC expertise and resources from DOE...

Virtual Teacher Research Academy offered this summer

May 5, 2020- 
Lawrence Livermore National Laboratory (LLNL) has a long history of providing professional development courses each summer for all levels of educators via the Teacher Research Academy (TRA). Under normal circumstances, courses are offered in a hands-on classroom environment with access to equipment and facilities. This year, in response to limitations due to COVID-19 and social distancing...

Experiment improves predictions of uranium dispersion

May 4, 2020- 
The predictive models that describe the fate and transport of radioactive materials in the atmosphere following a nuclear incident (explosion or reactor accident) assume that uranium-bearing particulates would attain chemical equilibrium during vapor condensation. In a new study, funded by the Office of Defense Nuclear Nonproliferation Research and Development (DNN R&D) within the U.S...

Guidance regarding extended shelter-in-place orders

May 1, 2020- 
Local, state and national response to the COVID-19 pandemic continues to evolve, with the state of California establishing a four-stage plan to slowly modify its shelter-in-place order and Bay Area counties extending their shelter-in-place orders through May. Under the extended Alameda County order, current restrictions will largely remain, with limited easing for a small number of lower-risk...

LLNL’s new machine learning platform generates novel COVID-19 antibody sequences for experimental testing

May 1, 2020- 
Lawrence Livermore National Laboratory (LLNL) researchers have identified an initial set of therapeutic antibody sequences, designed in a few weeks using machine learning and supercomputing, aimed at binding and neutralizing SARS-CoV-2, the virus that causes COVID-19. The research team is performing experimental testing on the chosen antibody designs. Currently, treating COVID-19 with...