Award Data

THE PROPOSED WORK AIMS TO DEVELOP NOVEL, HIGH PERFORMANCE SPATIAL LIGHT MODULATORS (SLM) MADE FROM ARRAYS OF FERROELECTRIC LIQUID CRYSTAL (FLC) LIGHT VALVES. THE FLC TECHNOLOGY ALLOWS SIMPLE, ECONOMICAL FABRICATION OF SLMS WITH A LARGE NUMBER OF ELEMENTS THAT CAN BE EASILY ADDRESSED EITHER ELECTRONICALLY OR OPTICALLY. PERFORMANCE FEATURES INCLUDE SUBMICROSECOND WRITE TIMES, HIGH OPTICAL THROUGHPUT ...

THE PROPOSED PROJECT AIMS TO DEVELOP A 1 X 2 ELECTRO-OPTIC SWITCH FOR USE WITH MULTIMODE OPTICAL FIBERS. BY EMPLOYING LIGHT VALVES HAVING FERROELECTRIC LIQUID CRYSTALS AS THE ELECTRO-OPTIC MEDIUM, THE DEVICES TO BE DEVELOPED WOULD EXHIBIT SWITCHING TIMES AT OR BELOW 1 MICROSECOND. THE DEVICES WOULD BE SMALL IN SIZE, CONSUME LITTLE ELECTRICAL POWER AND WOULD COMPLETELY SWITCH UNPOLARIZED LIGHT WHIL ...

A GOAL OF ERYTHROCYTE HYPOTHERMIC PRESERVATION IS TO DEVELOP A NONTOXIC, METABOLIZABLE CRYOPROTECTANT TO DECREASE THE INHERENT CYTOTOXICITY AND TO MINIMIZE OR ELIMINATE THE COSTLY AND TIME CONSUMING CELL WASHING PROCEDURES POSTTHAW. WE PROPOSE THAT CRYOPROTECTANTS BE ELIMINATED OR USED AT MINIMAL CONCENTRATIONS BY VITRIFYING (FREEZING WITHOUT ICE CRYSTALS) RED CELLS BY ULTRARAPID COOLING, AND THEN ...

A NEW TYPE OF LIQUID CRYSTAL MATERIAL, POLYMER DISPERSED LIQUID CRYSTALS (PDLC), WILL BE DEVELOPED FOR USE AS A HEADS-UP DISPLAY. THIS PROPOSAL IS CENTERED ON RECENT DRAMATIC ADVANCES IN LIQUID CRYSTAL TECHNOLOGY DEMONSTRATED BY THESE PDLC UNITS. THESE NEW MATERIALS EXHIBIT EXCELLENT TRANSMISSION (>90%) IN THE POSITIVE CLEAR MODE, ALONG WITH RAPID RESPONSE TIME (\1 MILLISECOND) AND LOW VOLTAGE (\3 ...

OVER THE LAST SEVERAL YEARS, THE EPA HAS DEVOTED MAJOR EF- FORTS TO IDENTIFY AND DOCUMENT THE MAGNITUDE OF THE RISKS OFENVIRONMENTAL POLLUTION DUE TO LEAKING UDERGROUND STORAGE TANKS (UST). IN APRIL 1987, THE EPA PUBLISHED THE PROPOSED REGULATIONS FOR THE OWNERS AND OPERATORS OF UST, WHICH ARE EXPECTED TO BE FINALIZEDD IN EARLY 1988. THESE REGULATIONS INCLUDE REQUIREMENTS FOR TANK TIGHTNESS TESTS, ...

AN INNOVATIVE TECHNIQUE IS PROPOSED TO ACQUIRE AND DIGITIZE 200 SAMPLES OF DATA TO 8-BIT ACCURACY AT LNS INTER VALS EVERY 67 MS. A UNIQUE CHARGE- COUPLED DEVICE (CCD) S SAMPLES THE DATA AND TEMPORARILY STORES 200 SAMPLES AT 1 GS/S. AT SLOWER RATE, THIS SAME CCD CONVERTS THE 200 SAMPLESOF SAMPLED-ANALOG DATA TO A DIGITAL FORM COMPATIBLE WITH CONVENTIONAL MICROPROCESSORS AND DITITAL MEMORY. IT CAN A ...

CARBON MONOXIDE IS A COLORLESS, ODORLESS, POISONOUS GAS PRO-DUCED BY THE INCOMPLETE COMBUSITON OF HYDROCARBON FUELS. IT IS A SIGNIFICANT OUTDOOR AND INDOOR AIR POLLUTANT. AUTOMO ARE THE MJOR SOURCE OF OUTDOOR CARBON MONOXIDE, AND IT IS EMITTED AT THE HIGHEST RATE DURING THE FIRST FEW MINUTES WHEN THE CATALYTIC CONVERTER IS NOT ACTIVE. MAJOR SOURCES OF INDOOR POLLUTION ARE APPLIANCES AND CIGARETTES ...

CANDIDATE POLARIZEDS FOR MISSILE FUSE ASSEMBLIES CAN EXHIBIT STRONG SPACIAL AND WAVE LENGTH VARIATIONS IN TRANSMISSION AND CONTRAST. A PROTOTYPE INSTRUMENT IS PROPOSED FOR RAPID, AUTOMATED TRANSMISSION AND CONTRAST MEASUREMENTS TO CHARACTERIZE POLARIZERS DURING DEVELOPMENT OR IN PRODUCTION QUANTITIES. A SPINNING CALCITE PRISM POLARIZER IS USED TO PROVIDE HIGH CONTRAST CAPABILITY OVER VISIBLE AND N ...

THIS PROJECT DEVELOPS AN ON-LINE RHEOMETER APPLYING THE PRINCIPLES OF THE HAGAN-POISEULLE EQUATION. THE RHEOMETER IS DESIGNED TO MEASURE ACCURATELY THE VISCOSITY OF MUNITION PROPELLANTS BEING EXTRUDED BY A TWIN-SCREW EXTRUDER. THE PROPELLANT EXTRUDATE IS A PSEUDOPLASTIC FLUID CONTAINING SUSPENDED SOLIDS. THE POISEULLE METER IS AN ACCURATE RHEOMETER FOR PSEUDOPLASTIC EXTRUDATES AND CAN BE IMPLEMENT ...

THIS PAPER PROPOSES AN ADVANCED KINETIC ENERGY WEAPONS SYSTEM THAT WILL SUPPORT NAVAL MISSION WORLD WIDE. THE WARFARE CONCEPT IS BASED ON AN ELECTROMAGNETIC LAUNCH CONCEPT WHERE LARGE NUMBERS OF 150 KG PROJECTILES ARE LAUNCHED IN ANTICIPATION OF A CONFLICT. THE PROJECTILES WOULD BE BOOSTED INTO 120 MINUTE ORBITS BY SMALL SOLID ROCKETS. THE PROJECTILES COULD BE CALLED DOWN INDIVIDUALLY BY FORCES UN ...