Award Data

FABRICATION OF ADVANCED COMPOSITES INCLUDES MANY PROCESSES, SOME ARE AUTOMATED, OTHERS ARE ENTIRELY MANUAL. ROBOTIC WINDING SYSTEMS (ROWS) WAS INVENTED BY THE PRINCIPLEINVESTIGATOR IN AN ATTEMPT TO CREATE AN AUTOMATED TECHNIQUE OF LAYING UP PRE-IMPREGNATED MATERIAL AROUND A FORM WITH COMPLEX SHAPE. CONVENTIONAL WINDING EQUIPMENT REQUIRES THE MANDREL TO ROTATE WHILE THE MATERIAL IS DRAGGED ALONG TH ...

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DURING THE DEVELOPMENT OF COMPLEX COMPUTER SYSTEMS, PERFORMANCE ENGINEERING TECHNIQUES ARE OFTEN NOT APPLIED OR ARE MISAPPLIED WHICH RESULTS IN SYSTEMS THAT DO NOT MEET THESPECIFIED PERFORMANCE CRITERIA OR MUST UNDERGO COSTLY REDESIGNS. AN INTEGRATED COMPUTER SYSTEM MODELING LANGUAGE OVERCOMES THE DEFICIENCIES OR TRADITIONAL ANALYTIC AND SIMULATION MODELING TOOLS BY EXPLOITING THE STRENGTHS FROM B ...

NASA IS CONTINUALLY DEVELOPING NEW SYSTEMS RANGING FROM COMPUTER SOFTWARE TO TEST FACILITIES TO LARGE SPACECRAFT. EACH SYSTEM DEVELOPMENT IS INITIATED AND CONTROLLED THROUGH THE USE OF REQUIREMENTS SPECIFICATIONS. THE PROPOSED STUDY WILL DETERMINE THE FEASIBILITY OF DEVELOPING AN AUTOMATED TECHNICAL DOCUMENTATION SYSTEM FOR A DESK TOP COMPUTER. THE SYSTEM WILL BE PROTOTYPED TO DEVELOP AND TEST CON ...

THIS PROJECT WILL PRODUCE A DECISION AID TO ASSIST SYSTEM DESIGNERS AND MISSION PLANNERS IN THE ALLOCATION OF SYSTEM FUNCTIONS TO HUMAN PERFORMANCE OR TO SOME DEGREE AUTOMATION. THE DECISION AID IS MADE UP OF: 1. A DATA BASE AND DATA CLASSIFICATION SCHEME; 2. AN EXPERT SYSTEM TO: A) INTEGRATE AND PRIORITIZE REQUIREMENTS DATA THAT WILL INFLUENCE THE ALLOCATION DECISION, B) ACTUALLY MAKE THE DECISIO ...

THE PHASE I RESEARCH IS A FUNDAMENTAL INVESTIGATION OF THE OPTICAL PROPERTIES OF THREE NARROW BANDGAP, SEMICONDUTING TRANSITION METAL SILICIDES. THESE MATERIALS MAY BE SUITABLE FOR THE DEVELOPMENT OF A NEW CLASS OF INTRINSIC INFRARED DETECTORS INTEGRATED DIRECTLY ONTO A SILICON CHIP. DISTINCT ADVANTAGES INCLUDES A COMPATABILITY WITH EXISTING SILICON MICROELECTRONICS PROCESSING ENABLING THE MONOLIT ...

SUPER ACCURATE ADAPTIVE COMPUTATIONAL SCHEMES FOR THE ANALYSIS OF FLUID STRUCTURE INTERACTION AND COMPLEX THREE-DIMENSIONAL INTERNAL FLOWS ARE TO BE DEVELOPED. NEW PETROV-GALERKIN FINITE ELEMENT METHODS FOR SOLVING THE NAVIER-STOKES EQUATIONS. COUPLED WITH THE EQUATIONS OF MOTION OF ELASTIC DUCTS AND MANIFOLDS, ARE TO BE DEVELOPED AND USED TO SIMULATE FLOWS IN AEROSPACE PROPULSION SYSTEMS (SUCH AS ...

EACH TIME NASA DEVELOPS A SPACECRAFT, IT DEVELOPS, AT THE SAME TIME, A LARGE BODY OF INFORMATION AND KNOWLEDGE IN THE FORM OF ENGINEERING DATA, SPACECRAFT TEST PROCEDURES, AND OPERATIONAL CONSTRAINTS. UNFORTUNATELY, MUCH OF THIS KNOWLEDGE IS NEVER TRANSITIONED TO OPERATIONS, WHICH FREQUENTLY REINVENTS IT (OR WORSE, NEVER DISCOVERS IT). CTA PROPOSES A SYSTEMS TECHNIQUE, A KNOWLEDGE BASE DICTIONARY, ...

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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 ...