New multibeam metal 3D printer testbed to understand laser-material interactions

Feb. 26, 2019- 
Lawrence Livermore National Laboratory (LLNL) scientists and engineers have created the first research-grade, open-architecture multibeam metal 3D printer and are developing advanced diagnostics to understand the mechanics behind the multibeam process under a project funded by the Air Force Research Laboratory. To address the need for larger builds and faster print times, commercial metal 3D...

Researchers look to computing's past to unlock 3D-printed mechanical logic gates for the future

Feb. 20, 2019- 
Taking a page from the past, Lawrence Livermore National Laboratory scientists and engineers are combining mechanical computing with 3D printing as part of an effort to create "sentient" materials that can respond to changes in their surroundings, even in extreme environments that would destroy electronic components, such as high radiation, heat or pressure. Original computers, like Charles...

Going deep: Lab employees get an introduction to world of machine learning, neural networks

Feb. 1, 2019- 
Deep learning is one of the most popular and widely used machine learning methods due to its success with autonomous vehicles, speech recognition and image classification, to name a few emergent technologies. But what exactly is deep learning, and how can it best be applied to Lab projects? Lawrence Livermore National Lab (LLNL) employees discovered the answers during a recent "Deep Learning...

3D printing method creates objects in one piece

Jan. 31, 2019- 
It looks like something you might find aboard the Starship Enterprise. A projector beams a three-dimensional video into a container of photosensitive resin. The video plays while the container rotates for a few minutes — then the fluid drains, leaving behind a complete, fully formed 3D object. Though it seems like science fiction, it’s not, thanks to scientists and engineers at Lawrence...

Playing video games may help researchers find personalized medical treatment for sepsis

Dec. 18, 2018- 
A deep learning approach originally designed to teach computers how to play video games better than humans could aid in developing personalized medical treatment for sepsis, a disease that causes about 300,000 deaths per year and for which there is no known cure. Lawrence Livermore National Laboratory (LLNL), in collaboration with researchers at the University of Vermont, is exploring how...

Lab develops metamaterials that change mechanical properties under magnetic fields

Dec. 7, 2018- 
Lawrence Livermore National Laboratory (LLNL) researchers have introduced a new class of metamaterials that can nearly instantly respond and stiffen 3D-printed structures when exposed to a magnetic field, a development that could be applied to next-generation helmets, wearable armor and a host of other innovations. The Lab-developed "field-responsive mechanical metamaterials" (FRMMs) employ...

Call for HPC for Energy Innovation proposals

Nov. 14, 2018- 
The U.S. Department of Energy's (DOE) High Performance Computing for Energy Innovation (HPC4EI) Initiative today issued its first joint solicitation for the High Performance Computing for Manufacturing Program (HPC4Mfg) and the High Performance Computing for Materials Program (HPC4Mtls). The call for proposals seeks American companies interested in collaborating with DOE’s national...

Research team achieves record performance for 3D-printed graphene aerogel supercapacitors

Nov. 2, 2018- 
Researchers at Lawrence Livermore National Laboratory (LLNL) and the University of California, Santa Cruz (UCSC) have created 3D-printed supercapacitor electrodes capable of achieving record-breaking performance and overcoming conventional tradeoffs for supercapacitors in the process.   In a paper published Oct. 18 by the online journal Joule, the joint research team demonstrated 3D-printed...

DOE to issue joint solicitation for HPC programs

Oct. 24, 2018- 
The U.S. Department of Energy's (DOE) High Performance Computing for Energy Innovation (HPC4EI) Initiative has announced it will issue its first joint solicitation in November for two of its pillar initiatives, the High Performance Computing for Manufacturing Program (HPC4Mfg) and the High Performance Computing for Materials Program (HPC4Mtls). The call for proposals will seek industry...

HPC4Materials announces first awards

Sept. 26, 2018- 
The Department of Energy (DOE) today announced the first round of awardees for the new HPC4Materials (HPC4Mtls) Program, a public-private effort aimed at using high-performance computing to advance U.S. industry’s discovery, design and development of materials for severe environments. The nine projects, totaling $2.7 million in DOE funding, involve five national laboratories and eight...

Spack, a Lab-developed 'app store for supercomputers,' becoming standard-bearer

Sept. 18, 2018- 
Spack, a Lawrence Livermore National Laboratory-developed open source package manager optimized for high performance computing (HPC), is making waves throughout the HPC community, including internationally, as evidenced by a recent tour of European HPC facilities by the tool’s developers. Despite its niche status, Spack (short for Supercomputer PACKage manager), is one of the most popular...

LLNL explores machine learning to prevent defects in metal 3D-printed parts in real time

Sept. 13, 2018- 
For years, Lawrence Livermore National Laboratory engineers and scientists have used an array of sensors and imaging techniques to analyze the physics and processes behind metal 3D printing in an ongoing effort to build higher quality metal parts the first time, every time. Now, researchers are exploring machine learning to process the data obtained during 3D builds in real time, detecting...

Electrochemical 'roughening' improves LLNL-developed flexible biological sensors

Sept. 11, 2018- 
Lawrence Livermore National Laboratory (LLNL) engineers and scientists have developed a new technique that enhances the performance of Lab-developed flexible thin-film biological sensors, increasing the sensitivity of the implantable arrays to chemicals for biosensing applications, among other performance improvements. In the latest edition of the Journal of the Electrochemical Society, LLNL...

DOE funds LLNL project aimed at improving energy efficiency in buildings

Sept. 10, 2018- 
The Department of Energy’s Building Technologies Office (BTO) within the Office of Energy Efficiency & Renewable Energy (EERE) recently awarded Lawrence Livermore National Laboratory (LLNL) researchers with $3 million for a three-year project aimed at using building energy more efficiently to shave peak electric energy usage. The project, led by LLNL power systems researcher Jhi-Young Joo...

Hierarchical 3D printing of nanoporous gold could 'revolutionize' electrochemical reactor design

Aug. 31, 2018- 
Nanoporous metals are superior catalysts for chemical reactions due to their large surface area and high electrical conductivity, making them perfect candidates for applications such as electrochemical reactors, sensors and actuators. In a study published today in the journal Science Advances, Lawrence Livermore National Laboratory (LLNL) researchers, along with their counterparts at Harvard...

Energy Secretary honors Lab scientist's contributions to stockpile stewardship

Aug. 30, 2018- 
Secretary of Energy Rick Perry recognized Lawrence Livermore National Laboratory (LLNL) chemist Bill McLean with a Secretary’s Achievment Award Wednesday in recognition of "pioneering technical contributions that have led to significant advancements in science-based stockpile stewardship."   The Secretary’s Honor Awards are bestowed on individuals who have a singular accomplishment that...

Manufacturing program calls for proposals focused on challenges in steel, aluminum

Aug. 29, 2018- 
Lawrence Livermore National Laboratory (LLNL) has issued a special High Performance Computing for Manufacturing (HPC4Mfg) call for proposals for projects aimed at addressing key challenges in U.S. steel and aluminum manufacturing. The solicitation officially opened on Aug. 23. Funding of up to $1.2 million will be made available from the Advanced Manufacturing Office of the Department of...

Researchers developing deep learning system to advance nuclear nonproliferation analysis

Aug. 21, 2018- 
Artificial neural networks are all around us, deeply embedded in routine functions on the internet. They help online merchants make personalized shopping recommendations, enable social media sites to recognize faces in photos and assist email programs in filtering out spam. Neural networks also have the potential to play a critical role in national security, helping nonproliferation analysts...

Optogenetics – controlling neurons with light – may lead to cures for PTSD, Alzheimer's

Aug. 20, 2018- 
Through the emerging field of optogenetics, a technology that allows genetically modified neurons in living tissue to be precisely controlled by means of light, scientists are attempting to gain a better understanding of how the brain works in hopes of discovering cures for debilitating neural disorders such as post-traumatic stress disorder (PTSD) and Alzheimer’s disease. A Lawrence...

LLNL and Virginia Tech researchers achieve more complex 3D-printed graphene aerogel

Aug. 17, 2018- 
Graphene aerogel is lighter than air but as strong as steel, and it’s already proven useful in aerospace, energy storage and insulation. While there have been recent advances in 3D printing of the novel material, achieving complex structures has been elusive, hampering the unique material’s full potential. To date, 3D printing of graphene aerogel has been done using direct-ink or other...