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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 ...

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 ...

The US DoD requires robust ways of neutralizing threats posed by hostile powers and terrorist organizations that may be in possession of dangerous weapons of mass destruction (WMDs). Unfortunately, the weapons currently available to the DoD do not offer a way for the WMD to be destroyed without risking the spread of that material throughout the area. The strategy for the defeat of biological weapo ...

Intense neutrino beam facilities for fundamental physics research, e.g. LBNF at Fermilab, T2K at KEK, and LBNO at CERN, require hadron monitors to diagnose primary and secondary beam qualities. Existing beam monitors based on ionization chambers are not robust in the high-radiation environment vicinity of MW-class secondary particle production targets. A novel pressurized ga ...

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 ...

Wind power plays an increasingly important role in satisfying the power needs of the U.S., and serves to reduce dependence on fossil fuels. With increased penetration, significant maintenance costs and reductions in power generation have underscored the need to predict the unsteady loading related to turbine configuration, layout and off-design wind conditions as well as importance of accounting ...

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 ...

The new purity requirements SAE J7219, ISO 14687-2 and ISO 14687 (Table I and Figure 1 below) place a three orders of magnitude increase on the accuracy of the instrumentation that is necessary to detect these extremely low levels of several critical contaminants. The design and verification of the conceptual approach of a cost-effective and reliable instrument that can sample the hydrogen at the ...

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 ...