Since 1993, Jack Dongarra, professor of computer science at the Univ. of Tennessee, Knoxville, has led the ranking of the world's top 500 supercomputers. But Dongarra says Linpack and the TOP500 ranking hasn't kept pace with supercomputing needs and must be updated. He and a colleague are developing a new benchmark that is expected to be released in time for the next TOP500 list release in November.
Sandia National Laboratories researchers captured three 2013 R&D 100 Awards. R&D Magazine presents the awards each year to researchers whom its editors and independent judging panels determine have developed the year’s 100 most outstanding advances in applied technologies. The Sandia winners are: Membrane Projection Lithography, Mantevo Suite 1.0 and the Solar Glare Hazard Analysis Tool.
Sandia National Laboratories will help East Coast communities devastated by Hurricane Sandy boost the resiliency of their electric grids, so they can be better prepared to deal with natural disasters in the future. Sandia’s Energy Surety Design Methodology is a quantitative, risk-based assessment approach that has been applied at more than 25 sites nationwide in cooperation with more than 20 local and regional utilities.
Hydrogen fuel cells are already powering mobile lighting systems, forklifts, emergency backup systems and light-duty trucks, among other applications. Now, researchers at Sandia National Laboratories have found that hydrogen fuel cells may be both technically feasible and commercially attractive as a clean, quiet and efficient power source for ships at berth, replacing on-board diesel generators.
Sandia National Laboratories researchers want airports, border checkpoints and others to detect homemade explosives made with hydrogen peroxide without nabbing people whose toothpaste happens to contain peroxide. That’s part of the challenge faced in developing a portable sensor to detect a common homemade explosive called a FOx mixture, made by mixing hydrogen peroxide with fuels.
Researchers at Sandia National Laboratories have confirmed the particle-by-particle mechanism by which lithium ions move in and out of electrodes made of lithium iron phosphate (LFP), findings that could lead to better performance in lithium-ion batteries in electric vehicles, medical equipment and aircraft.
Sandia National Laboratories and SRI International will join forces to explore, test and evaluate a broad range of hydrogen and natural gas fuel systems and components for transportation applications under a new agreement. The five-year memorandum of understanding is the first agreement in Sandia’s new Center for Infrastructure Research and Innovation, an alternative fuel research and innovation facility.
Sandia National Laboratories has developed key components of a software tool to help the Army's PEO GCS analyze countless what-if scenarios that can be manipulated as technology advances and the global environment, the federal budget, or other factors change. Sandia calls this advanced combination of modeling, simulation, and optimization decision support software the Capability Portfolio Analysis Tool (CPAT).
One of the most promising new kinds of battery to power electric cars is called a lithium-air battery. But progress has been slow. Researchers have used transmission electron microscope (TEM) imaging to observe, at a molecular level, what goes on during a reaction called oxygen evolution as lithium-air batteries charge; this reaction is thought to be a bottleneck limiting further improvements to these batteries.
A Sandia engineer who trained U.S. soldiers to avoid improvised explosive devices (IEDs) has developed a fertilizer that helps plants grow but can’t detonate a bomb. It’s an alternative to ammonium nitrate, an agricultural staple that is also the raw ingredient in most of the IEDs in Afghanistan. Sandia has decided not to patent or license the formula, but to make it freely available in hopes of saving lives.
The National Nuclear Security Administration announced that its Sequoia supercomputer at Lawrence Livermore National Laboratory has completed its transition to classified computing in support of the Stockpile Stewardship Program, which helps the United States ensure the safety, security, and effectiveness of its aging nuclear weapons stockpile without the use of underground testing.
Technology used in downhole applications—such as geothermal or oil-well monitoring—must endure punishing conditions, from very high temperatures to tremendous pressures. Finding a solder material that can perform in these harsh environments is a constant challenge. Researchers have recently repurposed a solder alloy once intended defense applications that has all the right properties for well tasks.
Sandia National Laboratories researchers Lisa Deibler and Arthur Brown had a ready-made problem for their computer modeling work when they partnered with the National Nuclear Security Administration’s Kansas City Plant to improve stainless steel tubing that was too hard to meet nuclear weapon requirements.
Researchers have successfully measured reaction rates of a second Criegee intermediate, CH3CHOO, and proven that the reactivity of the atmospheric chemical depends strongly on which way the molecule is twisted. The measurements will provide further insight into hydrocarbon combustion and atmospheric chemistry.
Sandia National Laboratories is developing a suite of complementary technologies to help the emerging algae industry detect and quickly recover from algal pond crashes, an obstacle to large-scale algae cultivation for future biofuels. The research draws upon Sandia's longstanding expertise in microfluidics technology, its strong bioscience research program and significant internal investments.
Researchers at Sandia National Laboratories are developing a medical instrument that will be able to quickly detect a suite of biothreat agents, including anthrax, ricin, botulinum, shiga, and SEB toxin. The device, once developed, approved by the U.S. Food and Drug Administration, and commercialized, would most likely be used in emergency rooms in the event of a bioterrorism incident.
Trapped atomic ions are a promising architecture that satisfies many of the critical requirements for constructing a quantum computer. Scientists who hope to push the capabilities of ion traps even further using cryogenics have recently published a report in Science that speculates on ion trap technology as a scalable option for quantum information processing.
Sandia National Laboratories has become a pioneer in large-scale passive optical networks, building the largest fiber optical local area network in the world. The network pulls together 265 buildings and 13,000 computer network ports and brings high-speed communication to some of the laboratories' most remote technical areas for the first time.
Researchers at Rice University and Sandia National Laboratories have made a nanotube-based photodetector that gathers light in and beyond visible wavelengths. It promises to make possible a unique set of optoelectronic devices, solar cells, and perhaps even specialized cameras.
Sandia National Laboratories has completed $199 million in facilities construction and repair as part of an 11-year national effort to revitalize the physical infrastructure of nuclear security enterprise sites.
In a public-private partnership that takes full advantage of the Livermore Valley Open Campus for the first time, Sandia National Laboratories and Cool Earth Solar have signed an agreement that could make solar energy more affordable and accessible. The five-year Cooperative Research & Development Agreement calls for researchers with Sandia's New Mexico solar energy program to help pilot, characterize, and validate Cool Earth Solar's inflated, concentrated photovoltaic technology.
Sandia National Laboratories has issued three information technology (IT) contracts totaling $353 million over a potential term of seven years. The awards streamline IT contracting at the laboratories.
“Zombie” mammalian cells that may function better after they die have been created by researchers at Sandia National Laboratories and the University of New Mexico (UNM). The simple technique coats a cell with a silica solution to form a near-perfect replica of its structure. The process may simplify a wide variety of commercial fabrication processes from the nano- to macroscale.
If a nuclear device were to unexpectedly detonate anywhere on Earth, the ensuing effort to find out who made the weapon probably would be led by aircraft rapidly collecting airborne radioactive particles for analysis. Relatively inexpensive UAVs—equipped with radiation sensors and specialized debris-samplers—could fly right down the throat of telltale radiation over a broad range of altitudes without exposing a human crew to hazards. A Sandia National Laboratories-developed airborne particulate-collection system demonstrated those kinds of capabilities.
Sandia National Laboratories Truman Fellow Anne Ruffing has engineered two strains of cyanobacteria to produce free fatty acids, a precursor to liquid fuels, but she has also found that the process cuts the bacteria’s production potential.