Award Data

THE OBJECTIVE OF THIS PROGRAM IS TO DESIGN AND BUILD A STAPLER FOR PERFORMING END-TO-END AND END-TO-SIDE ANASTOMOSES ON MEDIUM TO LARGE VESSELS, AND FOR REPAIRING BLOOD VESSELS AND VASCULAR ANEURYSMS, AND TO DEVELOP A SURGICAL PROTOCOL FOR ITS USE. THE METHOD PROPOSED USES A SPECIAL STAPLER AND CONFIGURATION OF STAPLES WHICH MINIMIZESBLOOD CONTACT WITH THE STAPLES, DOES NOT RESTRICT THE FLOW OF BL ...

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THIS RESEARCH PROJECT WILL DEMONSTRATE THE TECHNICAL AND ECONOMIC FEASIBILITY OF A MAGNETIC SEPARATOR FOR OPERATION ON PULVERIZED COAL. A THEORETICAL COMPARISON OF THE SEPARATOR WITH WORK PUBLISHED ON OPEN GRADIENT MAGNETIC SEPARATION BY THE OAK RIDGE NATIONAL LABORATORY INDICATES THAT THE SEPARATOR WILL HAVE HIGH LEVELS OF ASH CLEANING. THIS IS BECAUSE OF ITS COUNTERCURRENT PRINCIPLE OF OPERATION ...

THE RECENT DISCOVERY OF HIGH TEMPERATURE SUPERCONDUCTING MATERIALS HAS LED TO RENEWED INTEREST IN THE APPLICATION OF SUPERCONDUCTIVITY. THE NEW CERAMIC SUPERCONDUCTORS OFFER THE OPPORTUNITY OF USING THESE MATERIALS AS DETECTORS OF INFRARED RADIATION MORE CONVENIENTLY THAT THE OLDER, CLASSICAL SUPERCONDUCTORS. THE LARGER ENERGY GAP OF THESE NEW HIGH CRITICAL TEMPERATURE (T(C)) MATERIALS ALSO PROVID ...

IT HAS BEEN DETERMINED IN BENCH SCALE AND PILOT SCALE COAL LIQUEFACTION EXPERIMENTS THAT A PRETREATMENT AT MODERATE TEMPERATURES PRIOR TO LIQUEFACTION CAN SUBSTANTIALLY IMPROVELIQUEFACTION YIELDS AND QUALITY. HOWEVER, THERE IS LITTLE BASIC UNDERSTANDING OF THE PROCESSES THAT GIVE RISE TO THE OBSERVED PHENOMENA. THIS PROJECT SUGGESTS THE IDENTIFICATION AND OPTIMIZATION OF THE PRELIQUEFACTION CHEMIS ...

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THERE IS A NEED FOR AN INEXPENSIVE, COMPACT, LOW MAINTENANCE SUB-PICOSECOND OPTICAL PULSE SOURCE TO DRIVE AN OPTICALLY SAMPLED AND TRIGGERED OSCILLOSCOPE. ADEQUATE LASER SOURCES PRESENTLY OCCUPY TEN SQUARE FEET AND REQUIRE REGULAR MAINTENANCE, 20 KW OF ELECTRICITY, AND COOLING WATER; AND THEY COMPRISE THE MAIN COST ITEM IN THE PICOSECOND OSCILLOSCOPE. THE NEW PULSED LASER UNDER DEVELOPMENT IN THIS ...

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ONE OF THE MOST ACTIVE AND CHALLENGING FIELDS IN MOLECULAR BIOLOGY TODAY IS THE GENETIC STUDY OF EUKARYOTIC SYSTEMS. THE PRELIMINARY, BUT OFTEN RATE LIMITING, STEPS IN THIS AREA ARE THE DNA TRANSFER/HYBRIDIZATION TECHNOLOGIES ASSOCIATED WITH GENE MAPPING, AND THE SCREENING OF DNA LIBRARIES FOR GENE ISOLATION. THESE PROCEDURES USE RADIOLABELED HYBRIDIZATION TECHNIQUES AND AUTORADIOGRAPHY TO ACHIEVE ...