Award Data

70508B02-II To reduce the cost of burning-plasma experiments conducted for fusion energy research, refractory metals are required to increase high heat flux limitations for plasma facing component applications. For refractory metals such as tungsten (W) to be used in fusion applications, improvements in both mechanical and physical properties are needed. Because recent work identified the be ...

70281S02-II There is a critical need for safe, reliable and cost effective repair of aging and expanding natural gas transmission and distribution polyethylene (PE) pipelines in the United States. The industry is moving to ¿keyhole¿ access to repair these pipelines because of safety, reliability, and cost benefits. The critical first step in gas line maintenance and repair is to stop t ...

High resolution modeling of the aerosolization process for relatively large liquid jets is needed to quantify the dispersion of hazardous chemical or biological agents from damaged/punctured containers. A second application is the prediction of thedistribution of neutralization agents injected into clouds of hazardous chemical or biological agents. A high fidelity model is needed to provide accura ...

Reducing the cost of launching payloads into low earth orbit by a factor of 10 or 100 requires revolutionary changes in launching architectures. The Laser Lightcraft holds the potential for such savings by placing the bulk of the propulsion system on theground by using a ground-based laser to provide the impulse for lifting the payload. Attitude control for the Lightcraft is critical. This Phas ...

This research will determine extent and nature of the neutralization of bacterial spores when they are exposed, for very short times to high temperatures, pressures, and chemicals important in Agent Defeat weapons.. An exposure system will be constructedcapable of providing the ultra-short exposure times (on the order of ms) that are characteristic of bomb explosions and will be capable of exposi ...

The Phase II project will address enhancing ATR by developing techniques that use single and fused remotely sensed data sets to precisely characterize terrain environments, areas of potential trafficability, and areas of EOC clutter that can be ignored bythe ATR algorithms. These precision EOC identification and clutter-removal processes can be utilized as (1) a pre-ATR (terrain/ target potential ...

Military aircraft are largely constructed from special aluminum alloys, which typically have secondary precipitate phases that substantially improve mechanical strength. However, these regions also promote corrosion in such common environmental conditionsas acid rain, saltwater, and thermal cycling. The problem is significant enough that the U.S. Air Force expends approximately $1 billion per year ...

THE HIGH PERFORMANCE POTENTIAL OF COMPOSITE PROPULSION SYSTEMS MAKE THEM ATTRACTIVE FOR WINGED HORIZONTAL TAKE-OFF BOOSTER AND SINGLE STAGE TO ORBIT LAUNCH VEHICLES. NUMEROUS TYPES OF SYSTEMS HAVE BEEN PROPOSED, RESEARCHED, ANALYZED, AND TESTED. THE OVERALL OBJECTIVE OF THIS EFFORT IS A CRITICAL EXAMINATION OF PAST STUDIES AND ANALYSES TO IDENTIFY PROMISING CONCEPTS FOR TECHNOLOGY DEVELOPMENT FOR ...

THIS PROPOSAL DESCRIBES A FEASIBILITY STUDY FOR IMPLEMENTING A REALTIME, THREE-DIMENSIONAL CLOUD MODEL TO SUPPORT REENTRY VEHICLE TEST OPERATIONS. AN EXISTING RESEARCH CLOUD MODEL WOULD BE INTERFACED TO A MESOSCALE ATMOSPHERIC MODEL. THE COMBINED MODELING SYSTEM WOULD BE ADAPTED FOR USE AT THE KWAJALEIN MISSILE RANGE (KMR). FORECASTS OF DETAILED CLOUD FEATURES SUCH AS WATER CONTENT, RADAR REFLECTI ...

THE PROPOSED RESEARCH WILL EXAMINE THE ANTI-SIMULATION TACTIC BOTH FROM THE STANDPOINT OF THE OFFENSE AND FROM THAT OF THE DEFENSE. THE OFFENSE POINT OF VIEW INCLUDES DETERMINING THE SIGNATURE FEATURES THAT THE ANTI-SIMULATION TACTIC ATTEMPTS TO DISGUISE AND THE DEGREE TO WHICH THESE FEATURES CAN BE MODIFIED BY PRACTICAL ALTERATIONS OF BOTH THE RV AND THE DECOY. THIS PORTION OF THE RESEARCH WILL A ...