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THERE IS A NEED TO IMPROVE RECEPTION OF AND SYNCHRONIZATION OF WIDEBAND SIGNALS OF UNKNOWN PARAMETERS. FURTHER DEVELOPMENT OF THE MATHEMATICAL THEORY OF THE ESTIMATION OF GENERATOR CONFIGURATIONS FROM THEIR OUTPUTS WILL HELP TO ACCOMPLISH THIS GOAL. A PROMISING APPROACH IS TO APPLY SHIFT-AND-ADD AND OTHER PROPERTIES OF LINEAR SEQUENCES TO THE DETERMINATION OF THE GENERATOR CONFIGURATION. A PROPOSE ...

A RAPID FIELD TEST IS PROPOSED TO EVALUATE THE PERMEABILITY OF OPEN-GRADED ROAD BASES AND OTHER DRAINAGE LAYERS. THE SAME TEST ALSO SHOULD BE ADAPTABLE TO EVALUATE PERMEABILITIES OF OTHER EXPOSED PAVEMENT LAYERS INCLUDING THOSE COMPOSED OF BITUMINOUS OR PORTLAND CEMENT CONCRETES, AS AN INDEX TO PERMEATION AND POSSIBLY TO DETERIORATION. IT IS PROPOSED THAT THE PERMEABILITY BE EVALUATED THROUGH USE ...

THE PROPOSED PROJECT WILL DETERMINE THE FEASIBILITY OF THE USE OF ADVANCED TYPE II FLUIDS FOR THE DE-ICING/ANTI-ICING OF GENERAL AVIATION (GA) AIRCRAFT WITH TAKEOFF SAFETY SPEEDS (V2) OF GENERALLY LESS THAN 85 KNOTS. TYPE II FLUIDS WILL BE APPLIED TO SEVERAL GA CATEGORY AIRCRAFT. THE ICE PROTECTION CAPABILITY OF THE FLUID WILL BE EVALUATED FOR DIFFERENT FREEZING PRECIPITATION CONDITIONS. THE EFFEC ...

Ignition of rocket motors can be performed using low-volt firing components, but MIL-STD-1901A requires mechanical isolation for safety. While traditional safe & arm devices are available, they are relatively large and heavy. Recent progress in MEMS has developed miniature safe & arm devices for low-cost munitions such as 40MM grenade and airburst munitions. The Black Hills Nanosystems team has ...

ABSTRACT:The need for a natural language query capability for DoD regulations is identified. A technical solution based on artificial intelligence, cognitive computing, and natural language query technology is presented. In Phase I, various techniques will be investigated, and one or more solutions will be developed and tested. In Phase II, the down-selected technologies will be refined and built- ...

ABSTRACT:Specialty elastomers, such as hydrogenated acrylonitrile-butadiene rubber (HNBR) and fluoroelastomer (FKM), are widely utilized as high performance seals in numerous aerospace vehicles and components. The elastomer sealing industry and its products are primarily based on a limited pool of feedstocks that were last advanced in the 1970's. Using current technology, elastomeric seals must b ...