Scientists at Brookhaven National Laboratory and Stony Brook University have been awarded processing time on a new supercomputer at Oak Ridge National Laboratory to study how proteins fold into their 3D shapes.
Researchers donned safety glasses and put their arms into a high-purity, inert atmosphere glove box recently, to prepare protein samples for neutron scattering on the Cold Neutron Chopper Spectrometer at the Spallation Neutron Source at Oak Ridge National Laboratory. In their experiment, they are using picosecond time lengths to study the dynamics of green fluorescent protein.
An Oak Ridge National Laboratory and University of Tennessee team has used the Jaguar supercomputer to calculate the number of isotopes allowed by the laws of physics. The team used a quantum approach known as density functional theory, applying it independently to six models of the nuclear interaction to determine that there are about 7,000 possible combinations of protons and neutrons allowed in bound nuclei with up to 120 protons.
Future automotive batteries could cost less and pack more power because of a new manufacturing research and development facility at Oak Ridge National Laboratory. The $3 million Department of Energy facility allows for collaboration with industry and other national labs while protecting intellectual property of industrial partners.
Sensors that work flawlessly in laboratory settings may stumble when it comes to performing in real-world conditions, according to researchers at Oak Ridge National Laboratory. These shortcomings are important as they relate to safeguarding the nation's food and water supplies.
Shape-memory alloys are an engineer's dream, able to shape-shift spontaneously to accommodate changing operating conditions. A research team from NASA and the University of Central Florida is studying the internal mechanisms of these real-life "transformers" at the Spallation Neutron Source at Oak Ridge National Laboratory, with an eye toward increasing their use in everyday scenarios.
Researchers at Oak Ridge National Laboratory and Yale University have developed a new concept for use in a high-speed genomic sequencing device that may have the potential to substantially drive down costs. The researchers have created nanopores with a radio frequency electric field capable of trapping segments of DNA and other biomolecules.
The boundary between electronics and biology is blurring with the first detection by researchers at Oak Ridge National Laboratory of ferroelectric properties in an amino acid called glycine. A multi-institutional research team used a combination of experiments and modeling to identify and explain the presence of ferroelectricity in the simplest known amino acid—glycine.
According to recent research at Oak Ridge National Laboratory, light of specific wavelengths can be used to boost an enzyme's function by as much as 30-fold, potentially establishing a path to less expensive biofuels, detergents and a host of other products.
Materials such as bismuth samarium ferrite and lead zirconium titanate are often called "materials on the brink" in reference to their enigmatic behavior, which is closely tied to the transition between two different phases. Recent electron microscopy sponsored by Oak Ridge National Laboratory has helped build knowledge about these materials and related flexoelectric theory, which describes materials that change polarization when bent.
Scientists have for decades contemplated communicating via neutrinos when other methods won’t do. For the first time, physicists and engineers at Fermi National Accelerator Laboratory’s MINERvA detector have successfully transmitted a message through 240 m of rock using these ghost-like particles.
Small-angle neutron scattering instrument at the High Flux Isotope Reactor at Oak Ridge National Laboratory can be used for a surprising variety of biological studies. Recently, researchers in The Netherlands successfully analyzed and characterized the internal protein structure and composite particles of a cow named Martha.
Scientists have recently carried out the first investigation of 2D fermion liquids using neutron scattering, and discovered a new type of very short wavelength density wave. The team believes their discovery will interest researchers looking at electronic systems, since high temperature superconductivity could result from this type of density fluctuations.
Common material such as polyethylene used in plastic bags could be turned into something far more valuable through a process being developed at Oak Ridge National Laboratory. In a recently published paper, a team led by Amit Naskar of the Materials Science and Technology Division outlined a method that allows not only for production of carbon fiber but also the ability to tailor the final product to specific applications.
While several recent studies suggest that much of the world is likely to experience freshwater shortages as the population increases and temperatures rise, determining the relative impact of each has been difficult. A recent Oak Ridge National Laboratory paper outlines a process that might help.
Identifying chemicals from a distance could take a step forward with the introduction of a two-laser system being developed at Oak Ridge National Laboratory. The technique uses a quantum cascade laser to "pump," or strike, a target, and another laser to monitor the material's response as a result of temperature-induced changes. That information allows for the rapid identification of chemicals and biological agents.
Oak Ridge National Laboratory's Spallation Neutron Source's Spallation Neutrons and Pressure Diffractometer (SNAP) puts the squeeze on methane hydrate cages, unraveling their high-pressure structure.
Determining with precision the carbon balance of North America is complicated, but researchers at Oak Ridge National Laboratory have devised a method that considerably advances the science. In developing their approach, the team took advantage of inventory records from the U.S., Canada, and Mexico that track changes in the amount of carbon in various reservoirs such as plants, soils, and wood.
Oak Ridge National Laboratory's Jaguar supercomputer has completed the first phase of an upgrade that will keep it among the most powerful scientific computing systems in the world. When the upgrade process is completed this autumn, the system will be renamed Titan and will be capable of 10 to 20 petaflops.
A technology developed at Oak Ridge National Laboratory could streamline and strengthen the process for siting power plants while potentially enhancing the nation's energy security.
Researchers at Oak Ridge National Laboratory are sharing computational resources and expertise to improve the detail and performance of the Community Earth System Model, a scientific application code that is the product of one of the world's largest collaborations of climate researchers.
A mysterious phenomenon detected by space probes has finally been explained, thanks to a massive computer simulation that was able to precisely align with details of spacecraft observations. The finding could not only solve an astrophysical puzzle, but might also lead to a better ability to predict high-energy electron streams in space that could damage satellites.
Inventing new metal products is tough. R&D finds out how recent R&D 100 Award-winning technologies have fared in the marketplace.
Individual atoms can make or break electronic properties in one of the world's smallest known conductors—quantum nanowires. Microscopic analysis at Oak Ridge National Laboratory is delivering a rare glimpse into how the atomic structure of the conducting nanowires affects their electronic behavior.
A series of neutron scattering experiments at Oak Ridge National Laboratory and other research centers is exploring the key question about a long-sought quantum state of matter called supersolidity: Does it exist?