Abstract:THE OVERALL OBJECTIVE OF THE PROPOSED EFFORT IS TO DEVELOP A LOW POWER, COMPACT MULTICOLOR, FLAT PANEL DISPLAY. OUR APPROACH IS BASED ON ILLUMINATING A 3-COLOR PHOSPHOR SCREEN WITH AN INFRARED SEMICONDUCTOR LASER DIODE AND SCANNING IT WITH AN INTEGRATED OPTICS BASED LOW POWER LASER SCANNER. APA… more
Abstract:MULTISPECTRUM GUIDANCE SYSTEMS ARE BEING DEVELOPED WHICH CONTAIN EXTREMELY SMALL, NON-SPHERICAL OPTICAL COMPONENTS FOR LONG WAVELENGTH IR SEEKERS. THE NAVY REQUIRES A NONCONTACT METHOD OF TESTING THESE PARTS FOR CONFORMANCE TO SPECIFICATIONS PRIOR TO THEIR ASSEMBLY INTO THE SYSTEM. APA OPTICS… more
Abstract:WE PROPOSE A UNIQUE ELECTRO-OPTIC LWIR BEAM SCANNING DEVICE. THIS ALXGA1-XN PLANAR WAVEGUIDE BASED ELECTRO-OPTIC DEVICE CAN BE USED EITHER IN A SCANNER OR A RECEIVER CONFIGURATION. IT HAS THE POTENTIAL OF LARGE FIELD OF VIEW (20 DEGREES), FAST RANDOM ACCESS AND LOW POWER OPERATION. THE DEVICE IS… more
Abstract:WE PROPOSE THE DEPOSITION OF HIGH TC YBACUO LAYERS, USING ATOMIC LAYER CVD OVER A COMPOSITE ALXGA1-XAS/ALXGA1-XN/SAPPHIRE SUBSTRATE. THE UNIQUE ATOMIC LAYER PROCESS IS EXPECTED TO REDUCE THE EPITAXY TEMPERATURE WELL BELOW THAT REQUIRED FOR CONVENTIONAL MOCVD. THIS WILL ELIMINATE THE NEED FOR A POST… more
Abstract:IN THIS PROPOSAL WE DISCUSS THE DEVELOPMENT OF A BLUE (POTENTIALLY GREEN AND OTHER WAVELENGTHS ALSO) SOLID STATE LASER BASED ON PN-JUNCTION HETEROSTRUCTURES IN THE AIXGA1-XN MATERIAL SYSTEM. THESE AIXGA1-XN BASED LASERS WILL BE IDEAL FOR USES IN OPTICAL RECORDING, COMMUNICATION AND LARGE SCREEN… more
Abstract:THE KEY PROBLEM TO BE ADDRESSED IN PHASE I OF THIS PROJECT WILL BE TO DETERMINE THE FEASIBILITY OF A NOVEL POSITION MEASURING SYSTEM FOR A FAMILY OF COMPUTER CONTROLLED MACHINE TOOLS. THE MULTIPLE LASER MEASUREMENT SYSTEM (MLMS), WHICH FORMS THE BASIS OF THIS PROPOSAL, WILL MEASURE THE (X, Y, Z)… more
Abstract:MANY LIFE-SAVING PROCEDURES NOW REQUIRE THE INSERTION OF LONG-DWELLING PERCUTANEOUS CATHETERS (I.E., SEVERAL TYPES OFVASCULAR CATHETERS AND PERITONEAL DIALYSIS CATHETERS). IDEALLY, THESE CATHETERS SHOULD BE BOTH COMPATIBLE WITH THE TISSUES THEY ENCOUNTER AND PROVIDE AN EFFECTIVE BARRIER AT THE… more
Abstract:ENZYME DEFICIENCIES ASSOCIATED WITH INBORN METABOLIC DEFECTSARE USUALLY FATAL WITHIN THE FIRST FEW YEARS OF LIFE. TREATMENTS SUCH AS DIET MANIPULATION, GENE REPLACEMENT THERAPY, CHEMOTHERAPY, TRANSFUSIONS, TRANSPLANTATIONS, AND PERITONEAL DIALYSIS HAVE PRODUCED MARGINAL IMPROVEMENTS IN THESE… more
Abstract:NO ADEQUATE SMALL DIAMETER VASCULAR PROSTHESES ARE NOW COMMERCIALLY AVAILABLE, WITH THE MAJOR REASONS FOR LOSS OF PATENCY BEING THROMBUS FORMATION AND NEOINTIMAL FIBROUS HYPERPLASIA. ALSO, GRAFTS ARE OFTEN THE SITE OF CHRONIC INFECTIONS. THIS PROPOSED FEASIBILITY STUDY EXPECTS TO IMPROVE THE… more
Abstract:INFECTIONS ARE THE MOST SERIOUS COMPLICATION OF MEDICAL DEVICES. A HIGH INCIDENCE OF INFECTION IS ASSOCIATED WITH ALL DEVICES, INCLUDING CONTACT LENSES, CATHETERS, DIALYSIS MATERIALS, AND CARDIOVASCULAR IMPLANTS. INFECTIONS ARE TREATED AS THEY OCCUR, BUT PREVENTION IS THE MOST PROMISING APPROACH TO… more
Abstract:THIS PROJECT WILL DEVELOP A METHOD FOR USE IN NONLABORATORY ENZYME IMMUNOASSAY DETECTION KITS THAT WILL USE MODIFIED ANTIBODY FOR EXTRACTING HYDROPHOBIC CHEMICALS (ANALYTES) FROM A LIPID OR OIL PHASE IN A SAMPLE WITHOUT THE USE OF FLAMMABLE OR TOXIC SOLVENTS. THE CONCEPT IS TO COVALENTLY COUPLE A… more
Abstract:THIS RESEARCH WILL DEVELOP METHODS TO SIMULTANEOUSLY IMMOBILIZE AND COVALENTLY CROSS-LINK ANTIBODIES OR ANTIGENS ONTO POLYSTYRENE TUBES OR MICROTITER PLATES. THE COVALENTLYIMMOBILIZED ANTIBODIES WILL BE STABILIZED BY MULTIPOINT COUPLING TO HYDROPHILIC POLYMERS ON THE POLYSTYRENE SURFACE. THUS, THE… more
Abstract:A PROJECT IS PROPOSED TO DEVELOP A BIOSENSOR FOR MEASURING PATHOGENIC MICROORGANISMS IN WATER BY MEASURING CHANGES IN CONDUCTANCE ACROSS MICROPOROUS, POLYCARBONATE MEMBRANE COATE WITH SPECIFIC ANTIBODIES. THE MEMBRANES WILL BE COATED WITH HYDROPHILIC POLYMERS USING PHOTOCHEMICAL COUPLING. ANTIBODIES… more
Abstract:CURRENTLY USED URINARY CATHETERS PRODUCE PAIN UPON INSERTION, INJURE ADJACENT TISSUE, AND CAUSE HIGH RATES OF BACTERIAL INFECTIONS. THESE ADVERSE EFFECTS ARE MEDIATED BYUNDESIRABLE SURFACE PROPERTIES OF THE CATHETER POLYMERS. THIS PHASE I PROJECT WILL UTILIZE PHOTOIMMOBILIZATION TECHNOLOGY TO… more
Abstract:IMMOBILIZATION OF BIOMOLECULES RESULTS IN GREAT LOSSES OF SPECIFIC ACTIVITIES OF THE IMMOBILIZED MOIETIES. THE USE OF HYDROPHILIC SPACERS BETWEEN THE BIOMOLECULES AND THE MATRIX RESULTS IN IMPROVED ACTIVITIES. HOWEVER, FACILE INTRODUCTION OF SUCH SPACERS ONTO MANY INSOLUBLE SUPPORTS ISDIFFICULT… more
Abstract:THE GOAL OF THIS PROJECT IS TO DEMONSTRATE THE BENEFIT OF UTILIZING PHOTOCHEMISTRY AS A GENERIC METHOD FOR INTRODUCINGBONDED, SLIPPERY COATINGS TO MEDICAL DEVICES. IT IS ANTICIPATED THAT THIS APPROACH WILL BE SUPERIOR TO CURRENT METHODS. THIS TECHNOLOGY WILL BE USED TO PREPARE SURFACES THAT ARE… more
Abstract:A NEED EXISTS FOR THE DEVELOPMENT OF A LOW COST, RAPID IDENTIFICATION/MONITORING TEST KIT FOR POTENTIAL PATHOGENS IN FOOD PRODUCTS. A MAJOR INNOVATION WOULD INCREASE THE SCREENING OF DISEASE ORGANISMS WHILE MONITORING POTENTIAL PATHOGENS IN FOOD. THE PROPOSED RAPID EIA-BASED DIAGNOSTIC TEST KIT IS… more
Abstract:THE US MARINE CORPS HAS A DIRECT NEED TO MAINTAIN THE HEALTH AND FUNCTIONAL EFFECTIVENESS OF ITS PERSONNEL AGAINST A VARIETY OF DANGEROUS BIOLOGICAL AGENTS. METHODS TO DETECT THESE AGENTS IN ENVIRONMENTAL OR FIELD SAMPLES MUST BE DEVELOPED FOR USE IN THE NBC LABORATORY PROGRAM. THE PROPOSED NOVEL… more
Abstract:TO ENSURE RELIABLE PRODUCTION OF CARTRIDGE CASINGS, CRITICAL DIMENSIONS, SUCH AS THE PLACEMENT AND SIZE OF THE PRIMER CUP AND VENT HOLE, MUST BE ACCURATELY MAINTAINED. CURRENTLY, THERE IS NO ABILITY TO MEASURE CRITICAL DIMENSIONS OF THE PRIMER CUP DURING THE PRODUCTION OF THE 5.56MM CARTRIDGE CASING… more
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