Award Data

Currnet Ni-based metallic turbine shrouds, coated with ceramic abradable materials, are limited to temperatures not exceeding 2,100 F. Integrated High Performance Turbine Engine Technology (IHPTET) demands gas turbine hot sections with operational temperatures up to 2,500 F (1,370 C). Ceramic fiber reinforced ceramic matrix composites (CMCs) such as SiC/RBSN are candidate materials for these hig ...

ARPA has identified an important need for improved noise abatement while providing increased fuel economy for automobiles and other motor driven vehicles. This proposal is responsive to this need. It provides for a Phase I project to design and prove the feasibility of a noise abatement device for use on automobiles instead of conventional resonators and mufflers. This concept uses active noise ab ...

N/A

To reduce size, weight, power and cost (SWaP-c), military platforms have been evolving towards more integrated platforms that utilize all available space. For radiating systems, this will require exploring innovative design methods, materials and manufacturing approaches to realize cost-effective, customizable and conformal antennas. An attractive solution to this challenge is offered by additive ...

N/A

In recent years, the natural language research community has embraced constraint-based unification formalisms, largely for their expressiveness and their facility for implementation on computers. Despite years of research on the paradigm, there is not a portable, embeddable natural language processing software with a wide-coverage grammar and lexicon which is if practicable use for military, gover ...

As a National information resource, the Internet makes available vast amounts of information to a broad range of consumers. For most users, however, only a tiny fraction of the aggregate information is significant, and the overall resource only has value if that fraction can be located reliably, quickly, and automatically. Today's tools are incapable of meeting users' needs - they are too slow and ...

N/A

This Small Business Innovation Research Phase I project will fabricate an array of gas-sensing elements from pulsed-laser deposited (PLD) metal oxide thin films on silicon wafers, which will be integrated with fiberoptics and a digital signal processor (DSP) for device operation, readout, and signal conditioning. The developed sensor instrument that can be used as a subsystem for combustion contr ...

N/A