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A SYSTEM IS PROPOSED FOR UTILIZING EXPERT KNOWLEDGE TO AUTOMATICALLY GENERATE DECISION TREES WITH APPLICATIONS IN TARGET DETECTION AND CLASSIFICATION. THE PROPOSED WORK REPRESENTS THE FIRST FORMALIZED ATTEMPT TO COMBINE EXPERT SYSTEM TECHNOLOGY AND AUTONOMOUS DECISION MAKING FOR TASKS SUCH AS COMPUTER VISION, PATTERN RECOGNITION, AND INTELLIGENT CONTROL. IN THE PROPOSED SYSTEM, A KNOWLEDGE BASE CO ...

THE AIR FORCE SPACE DIVISION'S PROGRAM MANAGERS AND PLANNERS DO NOT CURRENTLY HAVE A READILY ACCESSIBLE, EASY TO USE, INTERACTIVE METHODOLOGY FOR ASSESSING SPACE SYSTEM LOGISTICS SUPPORT. PERCEPTRONICS PROPOSES TO DEVELOP A MICRO-COMPUTER HOSTED, ANALYSIS AIDED, FORMAL MODELING SYSTEM TO BE USED TO ASSESSING SPACE SYSTEM PLANNED LOGISTICS SUPPORT. PHASE I OF THIS EFFORT IS DESIGNED TO DETERMINE TH ...

A SYSTEM IS PROPOSED FOR THE UTILIZATION OF EXPERT KNOW- KNOWLEDGE TO GENERATE HIGHLY EFFICIENT SOLUTIONS TO DECISIONMAKING PROBLEMS. STARTING FROM EITHER A PRODUCTION RULE OR A DECISION TREE REPRESENTATION OF THE PROBLEM, AS SUPPLIED BY A SYSTEM DESIGNER, THE EXPERT DECISION TREE GENERATOR SYSTEM CAN PRODUCE AN EFFICIENT DECISION TREE REPRESENTATION THE USER CAN THEN EXPLORE SOME OF THE POSSIBLE ...

TO INCREASE THE BASIC UNDERSTANDING OF THE CARDIAC FUNCTION TO IMPROVE TECHNIQUES TO AID IN THE DIAGNOSIS OF HEART DISEASE. WE PROPOSE TO CONDUCT RESEARCH ON AN IMPROVED METHOD OF EVALUATING MYOCARDIAL FUNCTION IN ACTIVE PATIENTS. THIS APPROACH INVOLVES THE USE OF A VERY COMPACT, VESTLIKE INSTRUMENT WHICH USES NUCLEAR MEDICINE TECHNIQUES TO MEASURE THE EJECTION FRACTION OF THE HIGH VENTRICLE ON A ...

TWO DIMENSIONAL X-RAY DETECTORS ARE FINDING INCREASING USE IN DIFFRACTION STUDIES OF BIOLOGICAL MACROMOLECULES, ESPECIALLY WITH THE ADVENT OF HIGH INTENSITY X-RAY SOURCES AND COMPUTER AIDED ANALYSIS SYSTEMS. CURRENTLY AVAILABLE DETECTORS ALL SUFFER FROM PERFORMANCE LIMITATIONS, MAINTENANCE REQUIREMENTS AND/OR EXORBITANT COSTS. THE PROPOSED RESEARCH IS AIMED AT THE DEVELOPMENT OF A LARGE AREA SINGL ...

ONE OF THE MOST IMPORTANT CRITERIA FOR SUCCESSFUL RADIATION THERAPY IS THE ABILITY TO DELIVER THE HIGHEST POSSIBLE TUMOR DOSE AND MINIMIZE THE DOSE TO NORMAL TISSUE. MOST TECHNIQUES CURRENTLY USED FOR SHAPING RADIATION THERAPY BEAMS INVOLVE THE FABRICATION OF CUSTOM MADE, DENSE ALLOY BLOCKS. WHILE THESE BLOCKS HAVE PROVEN TO BE RELATIVELY EFFECTIVE, THEIR CONSTRUCTION IS VERY LABOR INTENSIVE AND E ...

THE USEFUL OPERATING LIFE OF MOST MECHANICAL SYSTEMS QUITE OFTEN IS DETERMINED BY THE CONTINUED EFFECTIVENESS OF A VARIETY OF TRIBO-ELEMENTS. THESE TRIBO-ELEMENTS ARE THE DEVICES AND MECHANISMS THAT PROVIDE FOR PROPER LUBRICATION AND FRICTIONAL CONTACT BETWEEN MOVING PARTS. SYSTEMS WHICH CAN MONITOR TRIBO-ELEMENT WEAR CAN PERFORM TWO VERY USEFUL FUNCTIONS: 1) THEY CAN MINIMIZE DOWN TIME BY ENSURIN ...

SINCE THEIR DISCOVERY NEUTRONS HAVE REMAINED ONE OF THE MOST DIFFICULT FORMS OF RADIATION TO DETECT. THE MOST EFFECTIVE NEUTRON DETECTORS IN CURRENT USE ARE GAS FILLED DETECTORS EMPLOYING EITHER 3HE OR BF3 AS THE DETECTION MEDIUM. UNFORTUNATELY, GAS FILLED DETECTORS SUFFER FROM A NUMBER OF DEFICIENCIES INCLUDING LARGE SIZE (GASES HAVE LOW VOLUMETRIC EFFICIENCY FOR STOPPING NEUTRONS), MECHANICAL FR ...

LEAD IODIDE (PBI2) IS A LITTLE USED COMPOUND SEMICONDUCTOR. THE HIGH ATOMIC NUMBERS OF ITS CONSTITUENT ELEMENTS GIVES ITEXTRAORDINARY PHOTOELECTRIC ABSORPTION EFFICIENCY FOR GAMMA PHOTONS, WHILE ITS 2.5 EV BANDGAP PROMISES PERFORMANCEAT TEMPERATURES UP TO 250 DEGREES C. IT HAS SHOWN SOME PROMISE AS A HIGH EFFICIENCY SOLID-STATE DETECTOR, BUT EARLYDEVICES WERE LIMITED BY MATERIAL IMPURITIES AND IMP ...