Award Data

Conventional coagulation tests use an isolated portion of the blood coagulation cycle to assess blood function by activating pathways of the cycle via chemical additives. Thromboelastography (TEG) is an effective tool for monitoring the entire coagulation cycle as a whole from a physical standpoint i.e. from the clot formation to fibrinolysis. Information about the quality and dynamics of clot for ...

Night vision has been a key enabling technology for the past 30 years that has allowed US pilots to"own the night". One of the big disadvantages of current night vision systems is that they have not provided pilots with good peripheral vision, since most have a total field of view (TFOV) of only 40 degrees. A large survey of USAF pilots found that the most often requested improvement to night visi ...

The currently fielded AN/AVS-9 night vision goggles (NVG) for use by air crew with a 40degrees Field of View (FOV) creates the so-call soda straw-effect that significantly hinders situational awareness desired for many types of missions. This FOV restriction limit has been identified as a causal factor in numerous aviation mishaps. Recognizing the needs for expanding FOV on NVG, we propose to deve ...

Over-The-Horizon (OTH) radar plays a crucial role in naval situational awareness and the ultimate safety of the naval warfighter and navy assets. Traditionally, OTH detection has been enabled by large land based radars exploiting the interaction of high frequency (HF) radio waves with the ionosphere, but this method is susceptible to instabilities in propagation and the limitations of HF systems. ...

A diagnostic is proposed for aircraft engine exhausts that provides three velocity components at each point in an image of a slice through the plume. The method measures the Doppler shift of laser light scattered from soot particles naturally present in the exhaust, and may also be useful for measuring non-combustion flows outside the exhaust using naturally occurring environmental aerosols. An im ...

A detail computational model is important in the construction and optimization of a slow-light gyroscope. Such a model needs to take into account many physical conditions such as Doppler broadening and cavity boundary conditions. As a result, the computational cost and resources for a full model can become very demanding even for today"s powerful computing capabilities. The proposed effort develop ...

Precise rotation sensors are critical components for stabilization, navigation, and targeting applications. The most sensitive commercial devices are fiber optic gyroscopes based on the Sagnac effect. There is the potential to enhance the performance of these gyroscopes using media with large positive (''slow light') or negative (''fast light') dispersion. In order to ...

We proposed to perform innovative research towards the developing of a simulation tool consisting of a comprehensive set of models and including modeling techniques that account for the complex interactions between optical network components in WDM LANs, such as those planned for aerospace platforms. To a large extent, the modeling effort will be guided by the ongoing work of the AS-3 WDM LAN work ...

Wavelength-division multiplexing has been employed to great success in long-haul transmission systems to increase capacity and provide a new means (wavelength) of routing. Their application to local-area networks (LANs) on aircraft is promising due to the light weight and narrow cross section of optical fiber, as well as fiber"s immunity to EMI. However, the dominant transmission impairments for a ...

This research is dedicated to developing high fidelity lag damper models to significantly improve the accuracy of the analysis of the rotor lead-lag damper forces over a wide range of blade lead-lag motion amplitudes, temperatures, and frequencies in support of aircraft design and engineering applications. The model development will emphasize the dampers with various configurations (e.g., linear ...