Award Data

BY OPTIMIZING CONDITIONS, CONVENTIONAL ELECTRON BEAM BY OPTIMIZING CONDITIONS, CONVENTIONAL ELECTRON BEAM RESISTS, SUCH AS PBS, CAN BE USED TO PRODUCE GEOMETRIES IN THE 0.3 TO 0.5 MICRON RANGE IN A CONTROLLED MANNER, USING RASTER SCAN WRITING TECHNIQUES IN A LIMITED PRODUCTION ENVIRONMENT. IN ORDER FOR THESE PATTERNING TECHNIQUES TO BE USEFUL, THE DEFECT DENSITY OF THE FINAL PRODUCT MUST BE VERY T ...

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RECENT SHUTTLE FLIGHTS HAVE SHOWN THAT SIGNIFICANT TEMPORARYOR PERMANENT DEGRADATION OF OPTICAL SURFACES CAN OCCUR IN FLIGHT. SEVERAL OSMIUM-COATED SAMPLES, FLOWN ON SHUTTLE FLIGHT STS 5, EXPERIENCED A PERMANENT LOSS OF REFLECTIVITY BY FACTORS OF 2-3 IN THE VACUUM ULTRAVIOLET PORTION OF THE SPECTRUM. OTHER COATING MATERIALS AND WINDOWS CARRIED ABOARD EARLIER SHUTTLE FLIGHTS SUFFERED LESS OR EVEN N ...

ONE OF THE MOST COMMON PROBLEMS IN THE FIELDS OF SYSTEM DYNAMICS AND PATTERN RECOGNITION IS THE IDENTIFICATION OF THE DYNAMIC CHARACTERISTICS OF A SYSTEM ARE KNOWN THAN AN ACCURATE MATHERMATICAL MODEL COULD BE CONSTRUCTED AND A BETTER UNDERSTANDING OF THE BEHAVIOR OF THE SYSTEM COULD BE DEVELOPED. THIS WOULD HELP IMPROVE ITS DESIGN AND PERFORMANCE, MADE ITS IDENTIFICATION EASIER, FACILITATE INSPEC ...

INTENSE, FINELY-FOCUSSED ION BEAMS WOULD FIND MANY APPLICATIONS IN RESEARCH AND PRODUCTION IF SUFFICIENTLY BRIGHT ION SOURCES COULD BE MADE. THE PROPOSED RESEARCH IS AN INVESTIGATION OF THE FEASIBILITY OF A CONCEPT FOR AN EXTREMELY BRIGHT ION SOURCE WHEREIN AN INTENSE SUPERSONIC MOLECULAR BEAM IS IONIZED AND IONS ARE CAREFULLY EXTRACTED FROM A SYNTHETIC PLASMA. THE TOPICS TO BE INVESTIGATED ARE TH ...

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A SYSTEM IDENTIFICATION TECHNICAL IS PROPOSED FOR NON-DESTRUCTIVE TEST TO DETECT UNBOUNDS IN LARGE BONDED COMPONENTS. THE TECHNIQUE USES THE SYSTEM'S TIME RESPONSE DATA DUE TO RANDOM INPUT EXCITATION. SYSTEM'S EIGENVALUES AND EIGENVECTORS ARE RETRIEVED FROM THE TIME RESPONSES AND USED FOR THE CONSTRUCTION OF ACCURATE SYSTEM MATHEMATICAL MODELS. SYSTEM'S CHANGE DUE TO CRACKS, VOIDS, UNBONDS BETWEEN ...

METHODS ARE DESPERATELY NEEDED TO DISCERN THE STRUCTURAL INTEGRITY OF CRITICAL COMPONENTS OF WEAPON SYSTEMS SUCH AS PRESSURE VESSEL CASES. AT THIS TIME, NO TECHNIQUE EXISTS WHICH PERMITS A GLOBAL MONITORING OF THE OPERATIONAL READINESS OF ANY STRUCTURES, INCLUDING COMPOSITE MOTOR CASES. THE RANDOMDEC PROCEDURE, WHICH IS PLANNED TO BE UTILIZED UNDER THIS PROPOSED STUDY, APPEARS TO HAVE THE CAPABILI ...

THE TECHNICAL OBJECTIVE OF THE PROPOSED RESEARCH IS TO DETERMINE THE EXTENT TO WHICH LANGUAGE INSTRUCTION CAN BE IMPLEMENTED AND ENHANCED BY THE EMERGING CAPABILITIES OF COMPUTER SYSTEMS PROVIDING PERSONALIZATION, MULTIMEDIA PRESENTATION, AND A HIGH DEGREE OF HUMAN/MACHINE INTERACTION. IF SUCCESSFUL, THIS WORK WILL LEAD TO NEW TECHNIQUES FOR TEACHING LANGUAGES, TECHNIQUES WHICH WILL OVERCOME CURRE ...