Award Data

Wind noise in outdoor measuemetn micropnones can mask an acoustic signal. Windscreens provide some wind noise reduction; however, those typically used for outdoor applications provide noise reductions of approximately 10-15 dB. Planning Systems Incorporated (PSI) proposes to design and test a Multiple Aperture Sensor System (MASS) consisting of a microphone, a processor, and data acquisitio and ...

The Air Force Research Laboratory Materials and Manufacturing Directorate (AFRL/MLMS) has initiated a multi-phase project to produce a Weapon System Integrated Cost Model (WS-ICM). To support the requirements presented by rapidly changing weapons acquisition environments, WS_ICM's methodology is based on cost as an independent variable through the total life cycle. The model comprises three modu ...

We propose to design and build a tunable, non-contact optical figure-measurement system to measure surface aberrations on a large membrane or segmented mirror. Our approach uses novel electro-optic devices to vary the resolution of the system over four orders of magnitude. Our concept also incorporates algorithms to interface with the mirror-actuator system so that the aberrations in the mirror' ...

Technology in Blacksburg, Inc., is proposing to use Micro-Electro-Mechanical-Systems (MEMS) to reduce boundary-layer losses in the stators of highly-loaded transonic compressor stages. MEMS-based micropumps will bleed-off the low velocity fluid on the blade suction surface resulting from the boundary layer separation. The work added by the micropump to this low momentum fluid will re-energize th ...

Bends in waveguides are a problem for high-voltage Ultra-Wideband (UWB) systems. The difficulty arises because only a straight section of standard transmission line can support a pure TEM mode. And a pure TEM mode is necessary to preserve the risetime of the transmitted impulse. When there is a bend in the waveguide, the transmitted signal is a broader impulse than the incident signal. This ca ...

The problem of mine detection and location is particularly difficult when the mines are built from a plastic or dielectric material. Metal detectors are able to detect metal mines, but plastic mines blend in very well with the background soil and rocks. A promising approach for detecting plastic mines is the use of Ultra-Wideband (UWB) radar. In this project we will explore and develop methods ...

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A THREE-DIMENSIONAL, NONHYDROSTATIC CLOUD MODEL IS USED AS A TOOL TO INVESTIGATE THE PROBLEM OF THUNDERSTORM INITIATION. OPERATIONAL NUMERICAL MODELS DO A POOR JOB OF PREDICTING THE GEOGRAPHIC DISTRIBUTION OF CONVECTIVE ACTIVITY, ESPECIALLY DURING THE WARM SEASON, WHEN THE LARGE SCALE CIRCULATION IS RELATIVELY WEAK. THE CUMULUS PARAMETERIZATION SCHEMES USED IN CURRENT MESO-BETA-SCALE RESEARCH MODE ...

With the development of compact, rugged laser diodes that can be powered with bateries, it appears that medical procedures that utilize lasers can now be brought into the field environment. The goal of this effort is to develop a fieldable laser diode tissue soldering system for wound stabilization. In this technique, a laser is used to thermally cure a protein solution placed onto a wound. Thi ...