Award Data

ABSTRACT: Nanocrystals (NCs) offer many potential benefits for optical refrigeration; these quantum-confined materials have discrete energy levels, large optical transition dipole moments, and high photoluminescence quantum efficiency. Using well-characterized upconverting ion-doped metal oxide NCs and core-shell semiconductor nanocrystals as a baseline, a design of experiments (DOE) will be cond ...

ABSTRACT: The United States Air Force and the Department of Defense are investigating synthesis, scale-up and production of novel energetic materials including high energy density compounds and fuels. Five-membered heterocyclic rings containing nitro groups have demonstrated great potential as energetic materials. Synthetic and engineering challenges are impeding scientists from safely producing ...

ABSTRACT: The behavior of the Chalcogenide based ion-conducting memristor lends itself for use as an element in a simple neuromorphic computing circuit. The reaction of a circuit to an external stimulus may be the result of its ability to learn from previous similar, yet unrelated exposures to environmental stimulus. A highly specialized variation of the memristor, previously developed by the Ad ...

A software tool for residual strength and life prediction of advanced hybrid structures will be developed by enhancing and integrating an existing mesh independent 3D X-FEM solid element with a partially bonded cohesive interface element in Abaqus. The tool will be able to model arbitrary location, size of damage, and geometric configuration of fiber metal laminates with the coexistence of metal l ...

ABSTRACT: Primordial, Panoptic, and intuVision propose the development of Tentaclea multi-camera immersive surveillance system that synthesizes information from hundreds of video streams into an intuitive 3D representation. Team Primordial will start with our existing state-of-the-art baseline componentsPanoptic C-Thru, intuVision Panoptes, and intuVision Video Recallwhich already fully meet 6 a ...

ABSTRACT: In order to avoid potential collisions with space debris future spacecraft in geosynchronous (GEO) orbit may be required to detect all objects in their local environment and will be required to have 4pi steradian coverage. Unfortunately the sun can blind and/or damage these sensors if precautions are not built into the sensor. APS is proposing to use an ultra-narrowband filter (0.001 ...

ABSTRACT: The objective of this project is to develop nondestructive evaluation technology to locate and characterize defects and damage in ceramic matrix composite material with sufficient quantification to be usable in material performance models. The Evisive microwave interferometry technique has been successfully applied to nondestructive examination and determination of density and porosity ...

The primary focus of this proposed effort development of methods to allow for ultra fast wideband RF sensing and classification of unknown RF devices. In order for cognitive radio methods and techniques to be implemented substantial improvement in sensing and classification of non-cooperative RF devices must be addressed. The team is proposing a comprehensive approach that first provides ultra f ...

Use of projection photolithography allows for fabrication of high fidelity diffraction gratings with individual control on location and shape of each groove using modern semiconductor tools and powerful computer-based simulation and CAD software. The method yields master-grade highly efficient diffraction gratings with high batch-to batch reproducibility at the fraction of the cost of regular hol ...

Carbon nanotubes form conductive composites at such low loading ratios and thus could be a key component in EMI shielding and conductors for lightweight aircraft wiring. Compared to conventional metal-based materials, electrically conducting polymer composites has attracted interest due to their light weight, resistance to corrosion, flexibility, and processing advantages. Minnesota Defense propos ...