Award Data

Surface detection of specific radioisotopes of the noble gases xenon and argon are essential for detection and discrimination of underground nuclear explosions. We propose a unique combination of numerical modeling and stable isotope release experiments to enhance the predictability of subsurface transport of the noble gases of interest. Our proposed research will identify and quantify the physi ...

In the defense industry today, high level SysML system models are used by engineers beginning early in the design process to functionally decompose the system being designed and to flow down requirements to sub-systems and components. Despite their usefulness, these system models are by and large descriptive models and not analytical (executable) models. In contrast, domain level engineers (struct ...

Current cooling systems are limited by the heat carrying capacity of the fluid, which is in turn limited by the pumping technology to move the fluid. This proposal allows a much higher heat capacity in the fluid, due to allowing the fluid to go from a 5% to 95% quality within the cooling circuit, which is enabled by an innovative and unique pumping technology that will be developed in this proposa ...

The objective of this proposal is to further explore and refine the use of hydrogen based propellants for use in high velocity gun systems. This proposal will build on the ongoing and very novel research being conducted with direct combustion of hydrogen-oxygen mixtures at high initial pressures. While the research performed to date has demonstrated the performance potential inherent in this app ...

ABSTRACT: Regardless of age or service history, machine equipment at AEDC must be reliable and ready for operation when required by test and evaluation schedules. Condition based maintenance of rotating machinery using embedded instrumentation has proven to be an effective approach for increasing the reliability of plant equipment. It is anticipated that broader monitoring capabilities would resu ...

Next generation ballistic missile warning, defense and surveillance systems need to anticipate, through modeling and simulation, the background radiation of the battlespace environment, including geometries that intercept the ocean background. This objective requires prior knowledge of the environmental radiance conditions for development of optimal sensors and detection approaches. Much work has ...

With evolutionary acquisition the preferred DoD strategy for rapid acquisition of mature technology, an evolutionary approach to easily update requirements validation techniques is required to enable delivering functional capability in increments. This evolutionary validation approach needs to recognize, up front, the need for future capability improvements and the subsequent adaptation of test va ...

In this collaborative STTR project between Vibratess LLC and UVA, we intent to conduct a combined theoretical and experimental study of plasmonic architectures for utilization with biological and chemical sensing in the THz spectral range. Plasmon Polariton (SSPP) devices that utilize metamaterials constructed of a conductor with sub-wavelength periodic structural features on it surface can tailor ...

The problem is that current high resolution penetrating RF sensors are incapable of reliably detecting obscured/buried threats to human life, and both military and civilians are dying as a result. Moreover, the high costs and productivity losses caused by destructive testing make this topic of extremely high importance. This SBIR addresses the key element that drives the performance"the waveform, ...

Deployment of Health and Usage Monitoring Systems (HUMS) on rotorcraft has resulted in significant improvements in maintenance action efficiency, increases in safety, and reductions in cost. Current HUMS provide diagnostic/prognostic information to maintenance crews through Condition Based Maintenance (CBM), which allows parts to be replaced on an as-needed basis. This marks an improvement over le ...