Award Data

State of the art yttria stabilized zirconia (YSZ) based thermal barrier coatings (TBCs) are typically limited to maximum use temperatures of 1200-1300C. A thermal barrier coating (TBC) with a 1500C temperature capability would be a major gas turbine materials breakthrough. New coatings with a 200C temperature advantage can be used by the gas turbine industry to significantly increase turbine effi ...

A novel pressurized gasfilled multiRFcavity beam profile monitor has been studied that is simple and robust in highradiation environments. Charged particles passing through each RFcavity in the monitor produce intensitydependent ionized plasma, which changes the gas permittivity. Standard RF techniques to measure the change in quality factor (Q) and frequency (f) as a function of time are then use ...

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Achieving a systems-level understanding of science associated with climate change is a key topic within the DOE mission. Light absorbing particles are an important atmospheric constituent and have a direct impact on climate. They also impact air quality and health and human activities play a major role in their abundance and distribution. There is a critical need for improved observational capacit ...

A new high-value product zero calorie sweetener L-arabinose has been identified because it may be produced from the D-xylose-rich aqueous biomass intermediate stream at low costs. L-arabinose is an FDA approved healthy sweetener with dual functions as a sucrase inhibitor and a prebiotic, but its current high price ($30/kg) prevents wide use. The co-production of high-value products such as L-ara ...

The increased accessibility via remote login, along with steadily growing numbers of HPC users and projects, poses a challenging question for HPC system management: How to secure HPC systems and protect the data inside these systems? There are several challenging issues that prevent the direct deployment of existing personal computer or cloud security tools in HPC systems: 1) The overhead introduc ...

Most radioisotopes are produced by nuclear reactors or positive ion accelerators, which are expensive to construct and to operate. Photonuclear reactions using bremsstrahlung photon beams from less-expensive electron linacs can generate isotopes of critical interest, but much of the beam energy in a conventional electron linac is dumped, making unwanted radioactivation. GENERAL STATEMENT OF HOW T ...

The Defense Threat Reduction Agency (DTRA) has been supporting research of energetic materials and incendiaries as payloads for weapons to defeat targets containing chemical and biological agents. Several universities and Navy labs have been involved in this research, and have narrowed down on a few material formulations that are efficient biocides. These formulations contain a chemical ingredient ...

With missions surrounding counterproliferation, nonproliferation and WMD reduction, the stakes for DTRA are incredibly high. Effectively conducting this work involves cooperation and coordination across a wide range of military and government organizations throughout the United States and the world. The decentralization of threats has led to an explosion in the sources and types of data needed to ...