Award Data

THE MAJOR PORTION OF THE EFFORT WILL BE TO DEVELOP A CO:MGF2 LASER SYSTEM SUITABLE FOR USE IN POSSIBLE NASA MISSIONS. MOST OF THE WORK ON CO:MGF2 LASERS HAS INVOLVED THE USE OF LIQUID NITROGEN FOR COOLING OF THE CRYSTAL, A MAJOR INCONVENIENCE FOR PRACTICAL APPLICATIONS. THE PROPOSED RESEARCH WOULD, BY A COMBINATION OF THEORETICAL ANDEXPERIMENTAL WORK, INVESTIGATE OPERATION OF THE CO:MGF2 LASER AT ...

AN INNOVATIVE APPROACH TO DEVELOPING A RETURN FLUX EXPERIMENT OF VEHICLE EMITTED GASES, VIA COLLISIONS WITH THEAMBIENT ATMOSPHERE, IS PRESENTED. THE SENSORS AND SOURCES REQUIREMENTS ARE DEVELOPED IN CONJUNCTION WITH NECESSARY MODELING PARAMETERS ASSESSMENT. THE EXPERIMENT PACKAGE IS DESIGNED FOR DEPLOYMENT IN THE SHUTTLE PAYLOAD BAY. THE SENSORS TO BE EVALUATED INCLUDE A PRESSURE GAUGE WITH DIRECT ...

EXISTING CONTAMINATION ASSESSMENT MODELS FOR SPACECRAFT UTILIZE A SINGLE COLLISION SCATTERING MODEL TO PREDICT FLUXES OF CONTAMINANTS ON SURFACES AND CONTRIBUTIONS TO OPTICAL LINES-OF-SIGHT. THEY ALSO DO NOT INCLUDE THE RAM PRESSURE BUILDUP OF AMBIENT GASES NEAR SPACECRAFT SURFACES. AN INNOVATIVE APPROACH IS PRESENTED THAT UPDATES THE GAS DYNAMICS MODELING OF CONTAMINANTS AND AMBIENT ATMOSPHERE IN ...

DIRECT COMPUTATION OF TURBULENCE NOISE IS A LOGICAL APPLICATION FOR ADVANCED COMPUTATIONAL FLUID DYNAMICS, CFD, PROGRAMS RUN ON SUPERCOMPUTERS. THIS WOULD ELIMINATE THE HIGHLY EMPIRICAL ASPECTS OF PRESENT NOISE PREDICTION TECHNIQUES AND ENABLE STUDY OF ADVANCED HYPERSONIC PROPULSION SYSTEMS. HOWEVER, MANY OF THE SAME PERSISTENT PROBLEMS OF IMPLEMENTATION THAT EXIST IN AEROACOUSTIC THEORY AND MEASU ...

THE DIGITAL ACTIVE MATERIALS-PROCESSING PLATFORM EFFORT BE- ING PROPOSED HERE SEEKS TO DEVELOP AN ACTIVELY STABILIZD PLATFORM UPON WHICH MICRO-G MATERIALS PROCESSING EXPERIMENTSCAN BE PERFORMED IN SPACE. WITH THE SUC- CESSFUL COMPLETION OF THE TWO-STEP PHASE I WORKPLAN APPLIED TECHNOLOGY ASSOCIATES (ATA) HAS CLEARLY AND SUCCINTLY DEFINED THE PROBLEM OF PLATFORM ISOLATION IN SPACE AND HAS COMPLETEL ...

LASER RADAR (LADAR) IMAGING HAS BEEN POSTULATED AS PROVIDING DATA SIGNIFICANT TO ROBOTIC VISION. WE PROPOSE TOADD DOPPLER VELOCITY MEASUREMENT TO EXISTING 3D AND INTENSITY IMAGING AND AN INTERACTIVE PROGRAMMABLE SCANNER/SIGNAL PROCESSOR CONCEPT, USING LONG RANGE CO2 LASERHETERODYNE IMPLEMENTATION. A DUAL FOV SCANNER APPROACH WILLBE INVESTIGATED TO ALLOW SIMULATNEOUS WIDE FOV BODY TRACKINGAND NARRO ...

THE ROTORCRAFT COMMUNITY HAS A CONTINUING NEED FOR IMPROVED DESIGN TECHNIQUES FOR HOVER AND AXIAL FLIGHT. SUCH TECHNIQUES CAN BE EMPLOYED TO BEST ADVANTAGE IF THEY ARE COUPLED WITH NUMERICAL OPTIMIZATION METHODS. THIS COUPLING WOULD MINIMIZE TRIAL AND ERROR COMPUTATIONS WHEN SEARCHING FOR CONFIGURATIONS TO MEET PARTICULAR DESIGN SPECIFICATIONS. A NEW, HIGHLY ADVANCED HOVER PERFORMANCE ANALYSIS REC ...

WE PROPOSE TO OPTIMIZE EPITAXIAL LAYERS OF IN.53GA.47AS ALLOYS WHICH DETECT LIGHT IN THE 1.0-1.7 MICRON SPECTRAL REGION. THE GOAL OF THE PROGRAM IS TO BRING THE YIELD OF INGAAS PHOTODIODES TO SUCH A LEVEL THAT PRODUCTION OF MULTI-ELEMENT (>50) LINEAR ARRAYS WITH 10% UNIFORMITY BECOMEPRACTICAL WITHIN THE PHASE I EFFORT. WE PLAN TO GROW DETECTOR STRUCTURES IN OUR HYDRIDE VAPOR PHASE EPITAXIAL (VPE) ...

FLIGHT SIMULATION IS A PRIMARY AND CRITICAL FORM OF TRAINING. HOWEVER, CURRENT SIMULATORS HAVE NOT YET BEEN INTEGRATED WITH COMPUTER-BASED TRAINING (CBT) TECHNOLOGY. THIS MEANS THAT AUTHORING TOOLS AND OTHER TYPICAL CBT CAPABILITIES SUCH AS PERFORMANCE MONITORING, GIVING ADVISE TO STUDENTS AND ANSWERING QUESTIONS, AND RECORD KEEPING FUNCTIONS ARE NOT AVAILABLE FOR TRAINING WITH SIMULATORS. WE BELI ...

THIS PROPOSAL IS A REQUEST FOR AN EVALUATION OF AN AIRFLOW MONITOR AND STALL WARNING DEVICE ON A HIGH PERFORMANCE AIRCRAFT EXHIBITING THE CHARACTERISTICS OF A MODERN JET TRANSPORT. THE DEVICE PROVIDES A METHOD OF SENSING LOCAL AIRFLOW PHENOMENA OVER AN AIRCRAFT WING, INCLUDING THE TRANSITION FROM LAMINAR TO TURBULENT FLOW, AND USING THIS PHENOMENA TO PREDICT THE APPROACH TO A STALL. THE DEVICE EMP ...