Award Data

ABSTRACT: This program targets development of a high-performance thermoelectric (TE) cooler with a figure-of-merit, ZT>3, which greatly exceeds currently available technology. The cooler is fabricated using Group II-VI compound semiconductors, i.e. HgCdSe or HgCdTe, using a low dimensional structure know as a"superlattice"(SL). The proposed TE coolers will operate at temperatures ranging from 5 ...

ABSTRACT: High temperature wind tunnels are needed to replicate the environment vehicles will experience during high Mach number flight. Of particular interest are sustained airflow temperatures of 2800 F. Although this level of performance has been obtained by two of NASA's wind tunnel facilities (i.e. High Temperature Tunnel (HTT) at Langley Research Center and Hypersonic Tunnel Facility ...

ABSTRACT: Optical Sciences Corporation (OSC) and the University of Alabama in Huntsville"s Center for Applied Optics (UAH/CAO) will demonstrate the feasibility and present a plan for developing optical instrumentation for the monitoring, mitigation, and removal of cryodeposits accumulated on optical and mechanical surfaces in cryogenic-vacuum radiometric calibration chambers. OSC will investigat ...

ABSTRACT: Operating in a Service-Oriented Architecture (SOA) environment is risky because there is limited ability to gauge the quality of information, especially information that has been transformed multiple times as it flows within the SOA. To address this problem, CFDRC built METSI (Metadata Establishing Trust in SOA-based Information) to quantify the Quality of Information (QoI) using seven ...

ABSTRACT: In today"s limited government budget environment, the push is towards smaller spacecraft with more rapid development times (

ABSTRACT: Leveraging the results of our Phase I work, Torch proposes developing/integrating an innovative instrumentation system along with automated data processing and data fusion algorithms to better characterize debris damage effects from static detonating weapon tests. Our Phase II work plan will focus on developing the instrumentation suite and live-fire field test measurements to gather th ...

ABSTRACT: Scientic, Inc. will team with Vanderbilt University to produce innovative new vacuum field emission (VFE) devices developed from Vanderbilt proprietary laterally configured VFE triode configurations. As a prototype demonstration device, Scientic and Vanderbilt will develop a novel low noise/low distortion VFE differential amplifier, which achieves the properties of ultrafast switching s ...

In this STTR Phase I project, CFD Research Corporation and University of Nebraska at Omaha will develop a preliminary computationally-driven first-principles framework for discovery and design of non-RE-containing alloys for high temperature applications. While rare-earth (RE) based alloys have played a pivotal role in modern defense and high-tech industry, sustainability of RE-based materials is ...

ABSTRACT: Unsteady aerodynamic loading and flow separation on modern high speed aircraft weapons bay doors can excite aircraft structural modes and lead to buffet, flutter, or fatigue-induced failures. Rigorous numerical simulations, wind tunnel and flight tests are typically carried out to investigate the aerodynamic loading on the doors, but analyses often only consider steady loads on rigid do ...

ABSTRACT: Electromagnetic (EM) devices are used increasingly in society, with applications in communication, medicine, security, and defense, among others. To study safety and potential health hazards of EM devices, high-fidelity voxelized anatomical body models have been used in conjunction with sophisticated EM and thermal solvers to predict energy absorption rates and tissue temperature elevat ...