In terms of emissions, just one pound of sulfur hexafluoride, a nontoxic gas used in electric insulation, is equivalent to about 11 tons of carbon dioxide. Energy Department experts are hunting down this and other fugitive carbon emissions and have already prevented the release of 600,000 metric tons of carbon equivalent.
The University of Tennessee's National Institute for Computational Sciences announced at the SC11 conference that it has entered a multi-year strategic engagement with Intel Corporation to pursue development of next-generation, high-performance computing solutions based on the Intel’s Many Integrated Core architecture.
Heated to extreme temperatures of up to 150 million C, the plasma in ITER's giant experimental fusion reactor will be fed a fuel of frozen pellets of deuterium-tritium, fired into the tokamak vacuum vessel by pellet injectors. This new system, now under testing, is a key component for what will be the largest-ever tokamak.
Tension wood, which forms naturally in hardwood trees in response to bending stress, possesses unique features, such as double the cellulose density of regular wood, that make it attractive as a bioenergy feedstock. For the first time, a comprehensive study of this wood and it’s suitability for sugar release has been conducted.
When doping a disordered magnetic insulator material with atoms of a nonmagnetic material, the conventional wisdom is that the magnetic interactions between the magnetic ions in the material will be weakened. However, when the antiferromagnetic insulator barium manganate was doped, the barium manganate's magnetic excitations were surprisingly unreduced in strength and energy.
Oak Ridge National Laboratory has awarded a contract to Cray Inc. to increase the Jaguar supercomputer's science impact and energy efficiency. The upgrade, which will provide advanced capabilities in modeling and simulation, will transform the DOE Office of Science-supported Cray XT5 system, currently capable of 2.3 million billion calculations per second (petaflops), into a Cray XK6 system with a peak speed between 10 and 20 petaflops.
Oak Ridge National Laboratory has awarded a $13.2 million task order to AREVA Federal Services for fabrication of five drain tanks for the ITER tokamak cooling water system. ITER is an international project to demonstrate the feasibility of commercial fusion energy.
Molecular motion in proteins comes in three distinct classes, according to a collaboration by researchers at Oak Ridge National Laboratory and the University of Tennessee. The research team combined high-performance computer simulation with neutron scattering experiments to understand atomic-level motions that underpin the operations of proteins.
Researchers at the Bio-SANS instrument at the High Flux Isotope Reactor are getting a leg up in their research from a "low tech" lighting tool that can be fixed to their samples and then pushed directly into the neutron beam, to illuminate the response of layers of cyanobacteria to changes in light.
Crystals and ceramics pale when compared to a material researchers at Oak Ridge National Laboratory discovered that has 10 times their piezoelectric effect, making it suitable for perhaps hundreds of everyday uses.
Multiscale complexity is common across all combustion applications—internal combustion engines, rockets, and industrial boilers—and can range from tens of meters to billionths of meters. New techniques being employed at supercomputers covers this huge scale range using fewer computer hours, and could benefit efficiency levels in the combustion industry.
An Oak Ridge National Laboratory invention able to quickly predict 3D structure of protein could have huge implications for drug discovery and human health. While scientists have long studied protein structure and the mechanism of folding, this marks the first time they are able to computationally predict 3D structure independent of size of the protein.
Batteries could get a boost from an Oak Ridge National Laboratory discovery that increases power, energy density, and safety while dramatically reducing charge time. The Oak Ridge team found that titanium dioxide creates a highly desirable material that increases surface area and features a fast charge-discharge capability for lithium-ion batteries.
A team from Tel Aviv University has developed superconducting wires using fibers made of single crystals of sapphire to be used in high powered cables. Factoring in temperature requirements, each tiny wire can carry approximately 40 times more electricity than a copper wire of the same size.
Neutron scattering studies of "cobalt blue," a compound prized by artists for its lustrous blue hue, are revealing unique magnetic characteristics that could answer questions about mysterious properties in other materials.
Solar cells that convert sunlight into electricity could be a widely used renewable energy source. Getting to that point, though, requires breakthroughs in their cost and their efficiency at turning sunbeams into electric current. Neutron scattering experiments conducted at Oak Ridge National Laboratory are helping solar cell makers obtain the hard data they need to refine their materials and manufacturing processes.
Dow Kokam and the Department of Energy's Oak Ridge National Laboratory are working together to enhance the Michigan-based company's capabilities to develop and commercialize advanced lithium ion batteries.
SING, which stands for SNS Instruments, Next Generation, is a project to outfit Oak Ridge National Laboratory’s advanced Spallation Neutron Source with 24 neutron instruments. The latest project to outfit the facility with five new instruments has been a success.
Researchers from North Carolina State University, the Oak Ridge National Laboratory, and CFD Research Corporation have found a new way to develop straight carbon nanofibers on a transparent substrate. The technique utilizes a charged chromium grid, and relies on ions to ensure the nanofibers are straight, rather than curling—which limits their utility.
A novel microscopy method at the Department of Energy's Oak Ridge National Laboratory is helping scientists probe the reactions that limit widespread deployment of fuel cell technologies.
The development of ultra-high magnetic storage devices has been hampered by superparamagnetism, a nanoscale phenomenon that causes data loss. A new type of magnetic media and fabrication process invented at Oak Ridge National Laboratory overcomes this problem.
The developers of New Stainless Steel Alloy Tooling For High Temperature Presses that Form Aircraft Components estimate that tools made with this alloy will have an increase in lifetime over those made using the closest competing alloy.
Oak Ridge National Laboratory's, Oak Ridge, Tenn., Hydrogen safety sensor with nanostructured palladium cantilevers provides rapid detection of hydrogen gas in atmospheric environments, and measures its concentration.
The future of clean water may depend on desalination technology, and engineers at Oak Ridge National Laboratory have championed capacitive deionization, by inventing a mesoporous carbon material that more effectively removes salts and minerals.
CermaClad: Rapid Metal Cladding Process offers a faster process for cladding corrosion resistant alloy, wear resistant alloys, cermet, ceramic, and metal powders on large metal surfaces, and is 25 to 50% cheaper than current technology.