Award Data

ABSTRACT: We propose to fabricate a high performance signal and pump combiner for high-power fiber lasers and fiber amplifiers. We will use advanced glass micromachining processes that will alleviate the fabrication challenges associated with either tapered fused fiber couplers or side-pumped fused coupler. A central robust fused silica structure will be micromachined. The pumps and signal fib ...

ABSTRACT: The physical scalability of Si based nonvolatile memory is problematic for the terascale integration of space memory. In particular and with regards to Flash, this problem is two-fold as device designs breakdown and photolithographic patterning approaches its limits to minimum feature size. Whereas phase-change and ferroelectric polymer devices have shown promise to scale beyond Flash ...

Directionally solidified (DS) superalloy blades provided the basis for substantial gains in turbine engine performance in recent decades. Now, single crystal (SX) nickel-base alloy blades can be grown directionally with interior passages for cooling air, enabling more advances in engine performance and durability SX blades are composed of single crystals oriented parallel to one another span-wise, ...

Spectral Energies, LLC and The Ohio State University proposes a comprehensive research effort to advance the state-of-the-art in seamless computation of the interior of a nozzle in high performance turbine exhaust and downstream plume aerodynamics. The focus is on higher-fidelity methods using robust, efficient and scalable high-order accurate implicit schemes couched in a Large-Eddy Simulation (L ...

Catapult shuttle wheel bearing loading is a function of the aircraft take-off weight and the acceleration of the catapult. The resultant load on the bearings of the existing catapult has significantly changed from the time the subject bearings were selected in 1980. If the projected aircraft take-off weight is 100,000 lbs., the bearing life will be reduced by approximately 94%. The Phase I objecti ...

As aircraft technology continues to evolve, there becomes a need for advanced takeoff systems for aircraft carriers. Increases in aircraft weight and takeoff speed require takeoff systems with reliable components to withstand the increase in force put on the system by the advanced aircraft. In this project, Powdermet will target the improvement of wheel bearings for both steam catapult shuttles an ...

The goal of this Phase I research is to demonstrate a scaleable pulse power modulator circuit with a resistive load, meeting scaleable voltage, current and peak power requirements for high power radio frequency (HPRF) source. Gallium Arsenide (GaAs) based high gain Photoconductive Semiconductor Switches (PCSS) will be used for this demonstration. The Phase I demonstration will be limited to 10-100 ...

This proposal is in response to rapid modeling need in our military force. We plan to develop and demonstrate a framework that will allow warfighters to rapidly acquire and edit geospecific terrain databases, including both building exterior and interiors. The output of our models will be in standard 3D format, which can be used in a variety of simulation and training software, including VBS2. We ...

SC2RAM ( Simulated Cognitive Cyber Red-team Attacker Model) is a cyber red-team-in-a-box that enables proactive response to cyber-attacks by developing a deeper understanding of the cognitive behavior of the players in the cyber-ecology (attackers, users, and defenders), embedding this understanding in a computational model, and translating it to tools that can help detect and respond to unfolding ...

Torch proposes a holistic, efficient, high fidelity approach for development of terrain models suitable for use in high fidelity EO/IR rendering applications and simulations. Torch will decrease development complexity and timelines through the generation of efficient characterization algorithms, artifact rectification algorithms, rapid clutter classification, and discrete element creation algorith ...