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THE OBJECTIVE OF THIS PROJECT IS TO DEVELOP THE DESIGN AND APILOT IMPLEMENTATION OF TWO COMMUNICATIONS PACKAGES WHICH WILL SUPPORT DISTRIBUTED COMPUTING FROM A MICROCOMPUTER WORKSTATION BASE. PARTICLULAR EMPHASIS IS GIVEN TO THE PROBLEM OF DIAL-UP ACCESS TO COMMUNICATION NETWORKS IN THE CONTEXT OF DISTRIBUTED DATA BASE MANAGEMENT SYSTEMS. THE FIRST PACKAGE ADDRESSES THE PROBLEM OF SIMULTANEOUSLY R ...

THE GOAL OF THIS PROJECT IS TO DEVELOP A GENERAL PURPOSE, MODULAR, HOLOGRAPHIC FRINGE ANALYSIS SYSTEM WHICH WILL BE ABLE TO USE EXPERT KNOWLEDGE TO CONTROL THE PROCESSING OF FRINGE PATTERNS INTO USEFUL ENGINEERING DATA. THE PHASE I OBJECTIVE IS TO DEVELOP THE ARCHITECTURAL DESIGN FOR THIS SYSTEM. SYSTEM MODULARITY AND A WELL DEFINED ARCHITECTURE WILL ALLOW FUNCTIONS TO BE ADDED WITHOUT AFFECTING O ...

THE PROBLEM OF ROBOT VISION FOR SPACE CONSTRUCTION IS DIFFICULT AND CHALLENGING. THE IMAGES THAT THE ROBOT VISIONSYSTEM MUST DEAL WITH WILL BE DIFFICULT TO SEGMENT INTO MEANINGFUL PIECES AND DIFFICULT TO INTERPRET. THREE IMAGE PROCESSING METHODOLOGIES BEING STUDIED AT MVI INCLUDE MATHEMATICAL MORPHOLOGY, THE FACET MODEL FOR IMAGE DATA, ANDTHE TOPOGRAPHIC PRIMAL SKETCH. THE PROPOSED PROJECT CONSIST ...

WE PROPOSE TO DEVELOP A FLEXIBLE EFFICIENT COMPUTER CODE TO SIMULATE ELECTROPHORETIC SEPARATION PHENOMENA IN UP TO THREESPATIAL DIMENSIONS. THE CODE WILL ALLOW EITHER A CYLINDRICAL OR A RECTANGULAR GEOMETRY, AND WILL COMPUTE THE TIME EVOLUTION OF THE CONCENTRATIONS OF AN ARBITRARY NUMBER OF CHEMICAL SPECIES, AND OF THE TEMPERATURE. THE PH DISTRIBUTION, CONDUCTIVITY, ELECTRIC FIELD, AND FLUID MOTIO ...

AEROSPACE STRUCTURES/MODELS ARE SUBJECTED TO HIGH TEMPERATURES AND STRONG AERODYNAMIC FORCES UNDER CAREFULLY CONTROLLED ENVIRONMENTAL CONDITIONS DURING INSTRUMENTED LABORATORY TESTING. WIND TUNNEL TESTING REQUIRES INSTRUMENTATION WHICH IS RUGGED, RELIABLE, ACCURATE AND PROVIDES TEST DATA QUICKLY TO THE TEST OPERATOR. MEASUREMENTS OF STATIC AND DYNAMIC STRAINS AND PROOF TESTING ON AEROSPACE STRUCTU ...

A PORTABLE DATA ACQUISITION AND INSTRUMENTATION SYSTEM (DAISY) HAS BEEN DEVELOPED BY AS&M, INC. FOR WIND-TUNNEL TESTS. IT INCORPORATES A UNIQUE AND PATENTED TECHNIQUE TO ACCURATELY IDENTIFY AND DEMARCATE REGIONS OF FLOW SEPARATION, REATTACHMENT, AND THE LEADING-EDGE STAGNATION POINT. SIMULTANEOUSLY, LAMINAR-TO-TURBULENT TRANSITION AND THE SPECTRAL CONTENT OF THE MOST AMPLIFIED DISTURBANCES IN THE ...

THE INNOVATION PROPOSED FOR DEVELOPMENT IS A FUEL-CELL BASED ELECTRIC PROPULSION SYSTEM FOR VERY HIGH-ALTITUDE AIRCRAFT. THIS SYSTEM WOULD POTENTIALLY BE CAPABLE OF REACHING ALTITUDES OF UP TO 40 KM (131,000 FT) WITH A SCIENTIFIC PAYLOAD IN EXCESS OF 450 KG (1000 LBS). IT WOULDBE AN ATTRACTIVE PROPULSION ALTERNATIVE FOR NASA'S PROPOSED HIGH ALTITUDE RESEARCH PLATFORM (HARP) OR OTHER VERY HIGH ALTI ...

NUTRIENT SOLUTIONS USED IN HYDROPONIC PLANT GROWING FACILITIES (SUCH AS NASA'S CELSS) SHOULD BENEFIT FROM ON-LINE MEASUREMENT AND CONTROL OF THE IONIC CONCENTRATIONS OF THE NUTRIENTS THAT MAKE UP SUCH SOLUTIONS. BIOTRONICS HAS DEVELOPED AN ON-LINE FIBER-LINKED FLUOROMETRIC ANALYZER POTENTIALLY CAPABLE OF MEASURING THESE IONIC CONCENTRATIONS. THIS FIBER-OPTIC BASED FLUOROMETRIC ANALYZER, DESIGNATED ...

THERE IS A NEED FOR FIBER COUPLED PROXIMITY SENSORS WITH HIGH SPEED AND ACCURACY FOR APPLICATIONS TO ROBOTIC END EFFECTORS AND TO AUTOMATED INSPECTION AND QUALITY CONTROL. THE PROPOSED PHASE I EFFORT WILL DEMONSTRATE A NOVEL, ROBUST, INTEGRATED SENSOR CONCEPT WITH MULTIPLE SENSOR CAPABILITY. FIBER OPTIC SENSORS HAVE BEEN DEMONSTRATED TO HAVE GEOMETRIC FLEXIBILITY. IN THE CASE OF PHASE MODULATED IN ...

WE PROPOSE TO INVESTIGATE TECHNIQUES TO MAKE A DUAL FREQUENCY (K-BAND AND C-BAND) TRANSPONDER THAT WILL SIMULATE THE SAME SURFACE REFLECTION OF RANGING PULSES TRANSMITTED FROM THE TOPEX/POSEIDON SPACECRAFT. THUS, THE TRANSPONDER MUST RECEIVE AND TRANSMIT ON THE SAME FREQUENCIES. THEREFORE, IT MUST RECEIVE THE SPACECRAFT TRANSMISSIONS AND DETERMINE THEIR CHARACTERISTICS, IN ORDER TO TRANSMIT REPLIC ...