Award Data

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 ...

IT IS WIDELY RECOGNIZED THAT BEHAVIORAL MEASURES OF WORKLOADARE INADEQUATE. EVENT-RELATED POTENTIALS (ERPS) RECORDED FROM THE HUMAN SCALP ARE A PROMISING ALTERNATIVE IN THAT THEY HAVE BEEN SHOWN TO REFLECT SELECTIVE ATTENTION, EXPECTANCIES, AND DECISION-MAKING PROCESSES. MOST PREVIOUS ERP STUDIES OF WORKLOAD HAVE BURDENED THE SUBJECT WITH A CONTRIVED SECONDARY TASK. THE PRESENT STUDY, BY TAKING AC ...

POLAR GRAPHIC DISPLAYS PRESENT QUANTITATIVE INFORMATION ABOUT A SYSTEM'S PARAMETERS AT THE NODES OF A GEOMETRIC FIGURE. BY TAKING ADVANTAGE OF HUMAN PATTERN RECOGNITION CAPABILITIES, THIS DISPLAY CONCEPT MAY ENHANCE OPERATOR'S ABILITY TO RAPIDLY ASSESS SYSTEM STATUS. THE PRESENT RESEARCH ADDRESSES BASIC AND APPLIED ISSUES IN HUMAN VISUAL PROCESSING AND DECISION-MAKING WITH POLAR GRAPHICS, IN AN EF ...

SENSITIVITY OF STELLAR GUIDANCE OPTICS IS LIMITED BY REFLECTION OF STRAY LIGHT INSIDE THE OPTICAL SYSTEM. IMPROVEMENT BY 50-100% OR MORE CAN BE OBTAINED WITH A BLACK COATING, DISCOVERED BY CHARLES FELDMAN AT JOHNS HOPKINS APPLIED PHYSICS LABROATORY, CONSISTING OF SUBMICROSCOPIC COLUMNS OF AMORPHOUS SILICON PRODUCED BY ETCHING THE SURFACE OF A SOLID SILICON LAYER. THE PROGRAM, WITH DR. FELDMAN AS C ...

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THE MARINE CORPS TRAINS ITS COMMANDERS AND THEIR STAFFS UNDER A NUMBER OF CONSTRAINTS (TIME, MONEY, TRAINING AREAS, ETC.) NEW C3I SYSTEMS AND WEAPON SYSTEMS REQUIRE MORE TRAINING THAN EVER BEFORE. ONE INNOVATIVE TOOL THE MARINE CORPS HAS DEVELOPED IS THE TACTICAL WARFARE SIMULATION EVALUATION AND ANALYSIS SYSTEM (TWSEAS) IT IS, HOWEVER, BECOMING OBSOLETE AND ITS REPLACEMENT WILL REQUIRE CAREFUL AN ...

THE RESEARCH IN PHASE I IS A TWO-FOLD EFFORT. FIRST, TO OPTIMIZE EXISTING FIRST AND SECOND GENERATION X-RAY IMAGE INTENSIFIERS, A COMPREHENSIVE RESEARCH PROGRAM WILL BE ESTABLISHED TO EVALUATE ALL CRITICAL PARAMETERS. SECOND, TO CREATE A REAL-TIME ANALOG/DIGITAL X-RAY IMAGE DETECTOR, A STATE-OF-THE-ART SOLID STATE TV CAMERA WILL BE COUPLED TO FIRST AND SECOND GENERATION X-RAY IMAGE INTENSIFIERS. T ...

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