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THE U.S. HAS AN ESTIMATED 327 BILLION BARRELS OF OIL IN EXISTING PRODUCTION FIELDS WHICH REMAINS IN PLACE EVEN AFTERPRIMARY AND SECONDARY RECOVERY TECHNIQUES HAVE BEEN EMPLOYED. HIGH RESOLUTION BOREHOLE-TO-BOREHOLE SEISMIC TOMOGRAPHY CAN PROVIDE THE INFORMATION NEEDED TO LOCATE THESE UNPRODUCED REGIONS THROUGH THE IDENTIFICATION OF SUBTLE GEOLOGIC ANOMALIES AND CAN BE USED TO ASSESS THE PROGRESS O ...

IMPROVED ELECTRONICS IN THE PREAMPLIFIER CIRCUIT OF CALORIMETER DETECTORS IS DESIRED TO IMPROVE THE ABILITY TO COLLECT DATA FROM HIGH ENERGY ACCELERATORS FOR PHYSICS EXPERIMENTS. EXTREMELY LOW NOISE AMPLIFICATION IS REQUIRED TO AVOID POOR SIGNAL TO NOISE RATIOS SINCE ANALOG SUMS OF ALL THE DETECTOR SIGNALS ARE PERFORMED FOR TRIGGER PURPOSES. FAST SIGNAL PROCESSING SPEED IMPOSED BY THE EVENT RATES ...

A MAJOR PROBLEM ASSOCIATED WITH THE USE OF ULTRA-HIGH-RESOLUTION GAS CHROMATOGRAPHY FOR EFFLUENT MONITORING IS THE RELATIVELY LOW SPEED OF ANALYSIS. WE PROPOSE TO DEVELOP AN ULTRA-HIGH-SPEED CAPILLARY GAS CHROMATOGRAPH WHICH WOULD BE SUITABLE FOR THE ANALYSIS OF EFFLUENT SAMPLES IN JUST A FEW SECONDS. THE HEART OF THE NEW INSTRUMENT WOULD BE A MICROBORE COLUMN WITH AN INTERNAL DIAMETER OF 50 MUM O ...

MOTOR OPERATED GATE VALVE OPERABILITY PROBLEMS AND FAILURES AT NUCLEAR POWER PLANTS ARE A MAJOR SAFETY CONCERN AS STATEDIN NRC IE BULLETIN 85-03 AND GENERIC LETTER 89-10. THIS PROPOSAL IS AIMED AT IMPROVING GATE VALVE PERFORMANCE BY (1) DEVELOPING COMPREHENSIVE PERFORMANCE PREDICTION MODELS FOR USE OVER A RANGE OF OPERATING CONDITIONS, (2) DEFINING LIMITS, BASED ON SPECIFIC DESIGNS, BEYOND WHICH E ...

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DURING THE REFUELING OPERATIONS AT A NUCLEAR POWER PLANT, IT IS NECESSARY TO FLOOD LARGE CAVITIES ABOVE THE REACTOR PRESSURE VESSEL WITH WATER TO PROVIDE RADIATION SHIELDING. THE SPENT FUEL IS TRANSPORTED THROUGH THESE CAVITIES TO A TEMPORARY STORAGE POOL LOCATED NEAR THE REACTOR. OTHER CONTAMINATED INTERNAL REACTOR COMPONENTS ARE ALSO STORED WITHIN THESE CAVITIES DURING REFUELING. ONCE THE REFUEL ...

THE PURPOSE OF THIS PROJECT IS TO DETERMINE THE FEASIBILITY OF DEVELOPING AN INTELLIGENT CUSTOMER LOAD CONTROLLER IMPLEMENTED WITH AN EXPERT SYSTEM. CONVENTIONAL ELECTRICAL LOAD CONTROL DEVICES IMPLEMENT CONTROLLING FUNCTIONS BASED ON PREDETERMINED ALGORITHMS WHICH MAKE ASSUMPTIONS ABOUT TYPICAL USE PATTERNS. USE OF AN EXPERT SYSTEM WITH A LEARNING ALGORITHM IN A LOAD CONTROLLER WOULD PERMIT THE C ...

HIGH POWER TRANSIT-TIME AMPLIFIERS ARE A NEW CLASS OF RF SOURCE THAT CONVERTS THE KINETIC ENERGY OF AN ELECTRON BEAM INTO RF RADIATION IN A VERY EFFICIENT WAY. WHEN THE BEAM CROSSES THE CAVITY OF PROPER DIMENSIONS, IT WILL INTERACT WITH A SINGLE CAVITY MODE THEREBY RADIATING COHERENTLY AT THE MODE'S FREQUENCY. MODE GROWTH CONTINUES UNABATED UNTIL THE RF FIELDS ARE LARGE ENOUGH TO MODIFY THE BEAM O ...