Award Data

Conducting operations and defending the nations critical networks in cyberspace requires processing and analyzing massive quantities of graph data in near-real time.New approaches for high performance graph analytics and query are needed for cyber defense and operations at massive data scales. Scaling graphs is a hard problem.Due to non-locality, CPU-based solutions are limited bymain memory bandw ...

The use of non-native substrates for GaN-based devices leads to devices with high densities of defects stemming from misfit dislocation formation due to lattice mismatch and large values of wafer bow stemming from thermal mismatch. The latter is particularly problematic as one attempts to grow device films on large area substrates. The high defect densities give rise to degraded performance and re ...

Future nuclear power plant designs call for large numbers of metallic fuel pins made from uranium alloys. Existing methods for casting these pins are very slow and costly. This project aims to enable largescale production of metallic nuclear fuel by developing an innovative continuous casting process. We are developing a continuous casting method that uses innovative process equipment, instrumenta ...

Development of liquid transportation fuels from biomass is an essential part of diversifying the U.S. energy portfolio. Algae represents a promising next generation bioenergy source for producing energy from renewable sources because of the fast growth and high oil content of certain algae strains. However, because of very dilute concentrations of algae in the feed and consequently very large volu ...

A low cost compact modular pointofuse, ondemand production system for the reforming of currently abundant supplies of natural gas will be developed. A nonequilibrium dielectric barrier discharge system provides scalable capacity for reforming methane into valuable products such as acetylene, hydrogen and other related hydrocarbon molecules. The high power density and high average electron energies ...

Increased electricity demand amid infrastructure development restrictions continues to foster innovation for distributed generation. Whereas pumped hydro installations are fixed locations, battery, thermal, compressed air, and flywheel storage can be mobile and competitive if they are cost effective, reliable, and safe, and have regulatory approvals and industry acceptance. Improvements to effici ...

Liquid metal cooled fission reactors are both moderated and cooled by a liquid metal solution. These reactors are typically very compact and they can be used in regular electric power production, for naval and space propulsion systems or in fission surface power systems for planetary exploration. Liquid metals in fusion reactors can be used in heat exchange, tritium breeder systems and in first wa ...

Remediation and long term management of contaminated sites is likely torequire hundreds of billions of dollars. Effective remediation of these sites requires actionable understanding on coupled surface/ subsurface system behavior and water, heat, contaminant and nutrient fluxes at these sites. A similar understanding is needed for water resource management and agriculture. How Problem is Addresse ...

Unmanned Aerial Vehicles (UAVs) are being used extensively by the military for operations in theatre, but they are largely remotely piloted.In particular, for smaller UAVs, added autonomy would make them much more useful.Current FAA regulations make commercial operation of UAVs very difficult and expensive, and a prerequisite for changing the status quo would be added autonomy.The development of s ...

Representing networks and complex associations, graphs are an important data structure within the Department of Defense.Applying graph analytics and mining to large data sets enables conducting operations, gathering intelligence, and defending the nations critical capabilities.Graphics Processing Units (GPUs) are demonstrated to provide 10-1000X acceleration for graphs.Building analytics for GPUs ...