Award Data

Environmental degradation of aerospace turbine components is a major concern for aircraft and power generation systems, and various surface treatments are utilized to extend the lifetimes of these critical components. This Phase II project is targeted toward extending the durability of thermal barrier coatings (TBCs) on hot section turbine components. TBCs are highly susceptible to degradation b ...

Laser-induced breakdown spectroscopy (LIBS) and Raman spectroscopy are developing rapidly for chemical and biochemical sensing applications. There is an urgent need for high-sensitivity detectors so as to minimize sample quantity and maximize detection range from the source. In most field-deployable spectrometers, a photo-detector array is used for analyzing the spectral contents. The sensitivitie ...

This proposal addresses topic A07-124 ``Geospatial Database Generation Agents'' aiming at developing the technology to populate the geometry and attribution of geospatial databases with information mined from open source text, tables, and non-spatial databases on the Web. As our solution, we propose to build the GeoEngine, a ``vertical-search'' system for finding and ranking information about geos ...

One of the most important problems encountered in an electromagnetic environment is that of providing compatibility between radiating and receiving RF equipment within the environment. This problem is a type of EMI and the goal of RF system designers and analysts is to achieve EMC where no interference problems exist. We propose to develop a software tool named Electromagnetic Interference Toolki ...

Modern aircraft include numerous RF systems and associated antennas of diverse types. The designed performance of antennas is typically degraded by their installation on the airframe. Also, the presence of many RF systems in a small region creates enormous opportunity for undesired interference via antenna-to-antenna coupling. These conditions present serious challenges for engineers tasked with i ...

The goal of this project is to reduce the cooling requirements of MWIR HgCdTe infrared photon detectors and improve detector performance at present-day cryogenic operating temperatures. During Phase I, we designed innovative Pn-N detectors and established the feasibility of growing the required HgCdTe-based structures by molecular beam epitaxy. Using this approach in a collaborative effort with th ...

This program is intended to advance the state-of-the-art d36 shear mode projector. Phase I of this effort produced a projector which demonstrates promising bandwidth and source level, especially considering its compact size. It is also the first known d36 underwater projector in the history of piezoelectrics. To develop a robust, high power, and broad bandwidth d36 shear mode projector array and b ...

In this proposal we exploit the remote sensing attributes of ultrasound to conduct heat transfer studies on hypersonic propulsion components and vehicle materials. In the Phase I program, we have successfully demonstrated the viability of the ultrasonic method to measure surface temperature, local temperature and heat flux. In a series of laboratory studies, we have remotely measured surface temp ...

A compact heavy fueled engine is progressing from a desire to a requirement. A miniature Meyer Nutating Disk Engine provides the means of propulsion that the military has been seeking. An unmanned air vehicle (UAV) will have capabilities that are not currently possible with present internal combustion engines. The miniature high power density Meyer Nutating Disk Engine designed during the Phase I ...

Our tool will combine a new urban growth model with a web-based content management system to create an environment where planners can leverage an urban growth model to review proposed infrastructure changes, new public policies, and other forms of interventions that may effective urban development patterns. Results of the urban growth model can be used to assess costs associated with new urban de ...