Abstract:THE CURRENT INVENTORY OF INSTRUMENTS TO MEASURE AERODYNAMIC HEATING DURING SUPERSONIC AND HYPERSONIC FLIGHT OF A SPACE VEHICLE IS EXTREMELY LIMITED. THE EVALUATION OF MUCH OF THEHEAT TRANSFER DATA MEASURED BY SCHMIDT - BOELTER AND GORDON CALORIMETERS HAS POINTED OUT THE LARGE ERRORS INHERENT TO… more
Abstract:SOME OF THE PROPOSED ENGINES SUCH AS THOSE BEING CONSIDERED FOR SPACE OPERATIONS USE REGENERATIVELY-COOLED NOZZLES FOR ENHANCING THEIR PERFORMANCE. THE EXPANDING GAS IN THE NOZZLE LOSES HEAT THROUGH THE WALL TO THE COOLANT FLOWING OUTSIDE THE NOZZLE IN A DIRECTION OPPOSITE TO THE NOZZLE FLOW. IN… more
Abstract:DURING THE TESTS OF SOME INTRUSION DETECTION SYSTEMS (IDS), VARIOUS SPURIOUS ALARMS HAVE BEEN PRODUCED, THE ORIGINS OF WHICH ARE NOT KNOWN. THESE INTERFERING SIGNALS ARE CLASSIFIED AS EITHER NUISANCE ALARMS OR FALSE ALARMS. THIS PROPOSED PHASE I INVESTIGATION WILL OBTAIN DATA ABOUT THE PERSONNEL… more
Abstract:THE DEVELOPMENT OF A HYPERSONIC MERGED LAYER (HML) PROGRAM IS PROPOSED TO INVESTIGATE THE NEAR-WAKE FLOW ON THE AOTV INTHE RAREFIED AND TRANSITIONAL FLOW REGIMES. DUE TO THE LOW DENSITY, HIGH ENERGY VISCOUS FLOW IMPINGEMENT ON THE PAYLOAD BAY, IT IS NECESSARY TO ASSESS THE THERMAL ENVIRONMENT,… more
Abstract:THE DEVELOPMENT OF A COMPUTATIONAL FLUID DYNAMICS (CFD) MODEL BASED ON VARIATIONAL PRINCIPLES AND USED TO SIMULATE AERODYNAMIC FLOWS IS PROPOSED. THE CFD MODEL WILL BE DESIGNED TO DESCRIBE TURBULENT, MULTI-DIMENSIONAL, UNSTEADY FLOWS, BUT THE VARIATIONAL FORMULATION WILL BE CAST TO AUTOMATICALLY… more
Abstract:THE LONG RANGE OBJECTIVE OF THE PROPOSED RESEARCH IS TO APPLY IMAGE PROCESSING TECHNOLOGY TO THE DEVELOPMENT OF AN AUTOMATED OPHTHALMIC INSTRUMENT THAT WILL RAPIDLY MEASURE THE ALIGNMENT OF BOTH EYES IN PRIMARY GAZE AND QUANTITATIVELY DETERMINE PHORIAS AND TROPIAS FOR THE OPHTHALMOLOGIST, THE… more
Abstract:THE PROPOSED RESEARCH IS TO ADVANCE THE STATE-OF-THE-ART OF DETERMINISTIC RISK ANALYSIS AND FIRE PROTECTION METHODOLOGY OF NUCLEAR POWER PLANTS. A COMPUTER CODE, BASED ON THE USE OF A FIELD (DISCRETIZATION) MODELING TECHNIQUE, WILL BE DEVELOPED THAT HAS SUFFICIENT FLEXIBILITY FOR ACCURATE/REALISTIC… more
Abstract:THE OBJECTIVE OF THIS PROPOSAL IS TO IMPROVE THE EXISTING REFLAN3D-SPRAY COMPUTER CODE TO PROVIDE A STATE-OF-THE-ART MODEL FOR SIMULATING ROCKET THRUST CHAMBERS. THREE MAJOR AREAS OF IMPROVEMENT ARE PROPOSED: (A) ACCURACY; (B) PHYSICAL REALISM; AND (C) COMPUTATIONAL EFFICIENCY. THEIMPROVED PHYSICAL… more
Abstract:AN ANALYTICAL MODEL AND A COMPUTER CODE FOR THE DETAILED SIMULATION OF THREE-PHASE FLOWS IN LIQUID ROCKET THRUST CHAMBERS IS PROPOSED. THE MODEL DESCRIBES BEHAVIOR OF THE LIQUID, DISPERSED AND GASEOUS PHASES IN A MOST EFFICIENT FORM. THE CONTINOUS GAS-PHASE FLOW AND COMBUSTION ARE DESCRIBED IN… more
Abstract:THLL IS THE TRIDENT HIGHER LEVEL LANGUAGE WHICH IS USED FOR TRIDENT FIRE CONTROL PROGRAM DEVELOPMENT AND FOR SYSTEMS PROGRAMMING ON THE VAX. THIS SBIR OBJECTIVE IS TO DEVELOP THE FEASIBILITY OF INTERFACING THE THLL COMPILER TO THE VAX SYMBOLIC DEBUGGER.
Abstract:NEW APPROACHES TO AUTOMATIC CONTROL ARE NEEDED IF VARIABLE POLARITY PLASMA ARC (VPPA) WELDING IS TO REALIZE ITS FULL POTENTIAL AS A RELIABLE, REPEATABLE, COST EFFECTIVE PROCESS.PRESENT VPPA CONTROL SYSTEMS ARE FIRST GENERATION, ELEMENTARY COMPUTER-BASED SYSTEMS THAT DEPEND ON PROGRAMS WHICH ARE… more
Company:Hubb Systems Inc.Agency/Program/Year/Phase:DOD / SBIR / 1987 / 1
Abstract:THE PROPOSED WORK CONSISTS OF DEVELOPING A CONCEPT FOR ADAPTIVELY CONTROLLING THE COMMUNICATION NETWORK FOR THE DISTRIBUTED SPARSE ARRAY OF SPACECRAFT SYSTEM. THIS CONCEPT WILL PROVIDE FOR SCHEDULING, ACQUIRING, MAINTAINING AND TERMINATING HIGH BANDWIDTH, NARROW BEAM, SPACE-SPACE AND… more
Abstract:THE GOAL OF THE OVERALL PROGRAM IS TO INVESTIGATE THE RELEVANT INFORMATION CONTENT CONTAINED IN A PHYSIOLOGICALLY BASED MODEL OF THE HUMAN VISUAL SYSTEM WITH REGARDS TO THE EFFICIENT AND EFFICACIOUS EXTRACTION OF DEPTH THROUGH STEREOPSIS. IN THE CONTEXT OF A MODEL OF THE HUMAN VISUAL SYSTEM THIS… more
Abstract:THIS PROPOSAL IS FOR JAYCOR TO DEVELOP AN UNIQUE MICROWAVE-DRIVEN VOLUMETRIC NEGATIVE HYDROGEN ION SOURCE AS CONCEIVED BY JAYCOR SCIENTISTS FOR THE SDIO. THIS SOURCE OFFERS THE PROMISE OF ENHANCED BEAM CURRENT DENSITY AND LOW BEAM DIVERGENCE. THE ENHANCEMENT IS ACCOMPLISHED UNDER NONEQUILIBRIUM… more
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