Award Data

A ONE-MILLION POUND COMPRESSION REACTION LOADER IS REQUIRED TO OPERATE IN CONJUNCTION WITH THE WATERWAYS EXPERIMENT STATION 6-KBAR TRIAXIAL TEST DEVICE. TERRA TEK HAS DESIGNED AND CONSTRUCTED SIMILAR TEST SYSTEMS FOR IN-HOUSE TESTING. TERRA TEK HAS ALSO DEVELOPED UNIQUE COMPUTER CONTROL CODES SPECIFICALLY FOR ROCK MECHANICS APPLICATIONS. THE PROPOSED PHASE I EFFORT IS TO DESIGN A COMPRESSION REACT ...

THE NAVY IS DEVELOPING METHODS TO DETERMINE THE SIZE AND TYPE OF DEFECTS IN HELICOPTER GEARBOXES. WITH THIS KNOWLEDGE A BETTER UNDERSTANDING OF THE FATIGUE-CRACK PROPAGATION CHARACTERISTICS OF THE GEARS AND BEARINGS WILL BE POSSIBLE AND ENHANCE THE ACCURACY IN PREDICTING THE FATIGUE LIFE. THE PURPOSE OF THIS PROPOSAL IS TO UNDERTAKE THIS STEP BY INVESTIGATING THE THREE-DIMENSIONAL STRESS DISTRIBUT ...

The objective of this work is to determine the best possible polycrystalline zirconia from the standpoint of properties and cost for applications in storage heaters. Our prior work has shown that highly stable tetragonal t'-zirconia with domain structure containing (

NA-BETA-ALUMINA IS THE SOLID ELECTROLYTE MEMBRANE USED IN SODIUM-SULFUR BATTERIES WITH APPLICATIONS IN LOAD LEVELING, ELECTRIC AUTOMOBILES, AND SATELLITE COMMUNICATIONS. THE STATE-OF-THE-ART ELECTROLYTES ARE FABRICATED BY GREEN-FORMING FOLLOWED BY SINTERING AT ~1540 DEGREES CENTIGRADE. ENCAPSULATION IN PLATINUM CONTAINERS OR MAGNESIA CRUCIBLES IS NECESSARY TO PREVENT LOSS OF SODA. TYPICAL THICKNES ...

INITIAL DESIGN AND TESTING OF THE MICROMATH SCIENTIFIC COMPUTING ENVIRONMENT (MMSCE) WILL BE CARRIED OUT. THE MMSCE EMBODIES AN OBJECT ORIENTED APPROACH TO SCIENTIFIC COMPUTING. "COMPUTATIONAL NODES" ARE DEFINED HERE AS ENTITIES BETWEEN WHICH DATA AND OTHER MESSAGES FLOW. IN THE MMSCE, THE SCENTIST-USER MANIPULATES COMPUTATIONAL NODES, AUTOMCATICALLY LINKING POTENTIALLY DIVERSE TYPES OF SCIENTIFIC ...

N/A

PROBABLY THE MOST POWERFUL METHOD FOR STRUCTURE ELUCIDATION OF AN ORGANIC COMPOUND, SUCH AS A BIOLOGICALLY ACTIVE NATURAL PRODUCT, IS THE TWO-DIMENSIONAL INADEQUATE (INCREDIBLE NATURAL ABUNDANCE DOUBLE QUANTUM TRANSFER EXPERIMENT) NMR EXPERIMENT WHICH ALLOWS ONE TO TRACE THE CARBON SKELETON OF ONE OR MORE MOLECULES FROM A SINGLE SPECTRUM. THE DEVELOPED PROGRAM CCBOND ("CARBON-CARBON BOND") WITH AL ...

High rate-of-fire weapons are subject to significant barrel erosion as projectile velocity and burst lengths are increased. Bore temperatures exceeding the melting point of steel can be easily reached because of the low thermal conductivity of the steel barrel. Barrels comprised of copper/graphite composite materials potentially have an order of magnitude greater thermal conductivity than steel an ...

High-power ammonia arcjet thrusters are being investigated as primary propulsion systems for carrying satellites into high altitude orbits. As a method to enhance the power levels and efficiency of the engine, the thermal emissivity of the outer anode surface must be substantially enhanced. Ideally, the anode material should be low density, both highly electrically and thermally conductive, and be ...

In the next generation of air-breathing high-performance engines, significant engine performance improvements are envisioned by combusting hydrogen with air in a regeneratively cooled carbon/carbon composite combustion chamber. Surfaces subjected to aerodynamic heating will also be cooled by recirculating hydrogen through cooling tubes. To date, approaches investigated have not had desired levels ...