Award Data

Interference of unburned and activated carbon in fly ash with air-entraining admixtures (AEA’s) in fresh concrete mixtures is a major concern in the concrete industry. Therefore, a rapid and accurate measurement of adsorption capacity of fly ash is of great interest to this industry. In this project, a new method is suggested, which can qualitatively and quantitatively measure different surfact ...

We propose a methodology for modeling and computationally optimizing anodic metal-filled primers using extensions of approaches that we already employ for corrosion analysis. Modeling will be developed using Star CCM+, a Computer Aided Engineering (CAE) platform from CD-Adapco. We presently use this for corrosion analysis when we need to incorporate computational fluid dynamics to take the variab ...

We will develop a simple, lightweight, compact, robust, and inexpensive instrument package that will report essentially all ultrashort-laser-pulse characteristics. It will yield, on a single shot, the pedestal power and complete pulse spatiotemporal field, E(x,y,z,t)i.e. all possible pulse information, including pulse-shape stability, even if multi-shot operation is required. It will include user- ...

The ultimate goal of the phase II effort is to build Si-based PCSS 10kV-modules and compare coupling of those modules to different microwave radiation technologies. The microwave radiating technologies include at least non-linear transmission lines and direct drive antenna; comparisons and system-level tradeoffs will be identified through normalized field measurements.

The increase in unmanned systems, also known as UxVs, on the battlefield creates the need for coordinated activity among multiple UxVs that work effectively in collaboration with the Warfighters who must be able to rapidly and easily command their operations, insure their compliance with intent in a highly unpredictable world, and receive needed situation awareness (SA) from their sensors. In orde ...

Many military and commercial applications have turned to power electronics to run a variety of systems efficiently, quietly, cheaply, and precisely. Therefore, there is an urgent need for efficient energy storage systems with both high energy and power densities. Supercapacitors have gained substantial attention for these applications since they offer outstanding advantages over conventional capac ...

Traditional selection and training practices are essential initial selection tools that show some general levels of predictive validity overall. However, current Navy selection tools are not good predictors of performance for Navy air system AVOs. In our targeted solution, we utilize proprietary methodologies that combine standard methods for selection and training of industry personnel, such as t ...

In Phase II, Propagation Research Associates, Inc., (PRA) proposes to complete the development of a real-time nowcast of ionospheric scintillation impacts on GPS users. Continuing its partnership with NASA’s Jet Propulsion Laboratory, PRA will implement real-time production of a map of ionospheric scintillation parameters over the United States using real-time data streamed from the National Geo ...

Compared to Lithium-Ion (Li-ion) batteries, which have earned the largest share of the battery storage market, flywheel energy storage systems (FESS) offer significant advantages in cycle life, power density and turnaround efficiency for short charge/discharge times, but normally at a higher cost. The goal for this Phase II program is to develop a FESS design that has lower acquisition cost than a ...

Navy command and control (C2) personnel must make decisions about events and activity they are not able to directly perceive. They must interpret information represented on an interface or over a communication device into a mental picture of the relevant environment - a mental model of the current situation. Sustaining high levels of team performance in this environment is difficult. A tool to pre ...