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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 ...

A PARTICLE SIZE SENSOR IS REQUIRED FOR ON-LINE PROCESS CON- TROL IN A METAL POWDER FORMING FACILITY. INSTRUMENTS AVAILABLE COMMERCIALLY FOR THIS SENSING RELY ON MEASUREMENTS OF LIGHT SCATTERING AT VERY SMALL ANGULAR INCREMENTS. IT IS PROBABLE THAT THE HIGHLY TURBULENT ENVIRONMENT IN WHICH THE METAL POWDERS ARE FORMED WILL PRODUCE SUFFICIENT ANGULAR DE-VIATION OF THE PROBING LIGHT BEAM TO INVALIDAT ...

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 ...

THE UNIQUE PROPERTIES OF DIAMOND MAKE IT ATTRACTIVE AS A MATERIAL FOR USE IN HIGH FREQUENCY, HIGH POWER, MILLIMETER MICROWAVE TUBES AND TRANSMISSION LINES. RECENT ADVANCES IN GYROTRONS AND FREE ELECTRON LASERS (FELS) AS POWER SOURCES, AND EXCELLENT PHYSICS RESULTS FROM THE T-10 TOKAMAK IN THE U.S.S.R. AND BIG-D AT GA TECHNOLOGIES IN THE U.S., HAVE HAD A MAJOR IMPACT ON THE FUSION PROGRAM. AN EXPER ...

THE OBJECTIVE OF THE RESEARCH PLAN IS TO DEVELOP A PROCESS OF PREPARING THIN POLYACRYLAMIDE GELS FOR DNA SEQUENCING, SUBSTITUTING PLASTIC FILM FOR GLASS PLATES AS THE SUPPORTINGMATERIAL. A PROCESS TO MAKE PLASTIC FILM-SUPPORTED GELS WITH SATISFACTORY ELECTROPHORETIC PROPERTIES WILL ALLOW PREPARATION OF READY-TO-USE GELS AND FORM THE BASIS OF A USEFUL MANUFACTURING PROCESS. COMMERCIAL AVAILABILITY ...