Award Data

THE PROPOSED RESEARCH IS FOR DEVELOPMENT OF ABDUCTIVE AND INDUCTIVE REASONING ALGORITHMS THAT WILL AID IN THE DEVELOPMENT OF FLIGHT CONTROL SYSTEM (FCS) MAINTENANCE DIAGNOSTIC SYSTEMS AND THAT WILL OVERCOME MANY OF THE LIMITATIONS OF EXISTING DIAGNOSTIC TECHNOLOGY. A FOCUS OF THE EFFORT WILL BE THE DEVELOPMENT OF A CAPABILITY TO REASON ABOUT FSC FAULTS AT A SYSTEM LEVEL WITH UNCERTAIN INFORMATION. ...

SOLID BORON HAS LONG BEEN RECOGNIZED AS A POTENTIAL HIGH VOLUMETRIC DENSITY PROPELLANT FOR VOLUME LIMITED ROCKET AND AIR BREATHING PROPULSION SYSTEMS. HOWEVER, ACHIEVING THIS POTENTIAL HAS BEEN DIFFICULT DUE TO LOW COMBUSTION AND HEAT RELEASE EFFICIENCIES IN CONVENTIONALLY DESIGNED COMBUSTORS. A THREE PHASE MODEL OF BORON ASSISTED COMBUSTION IS POSTULATED AND THE ROLE THAT KINETIC SENSITIVITY ANAL ...

THE OBJECTIVE IS TO DEVELOP A KNOWLEDGE-BASED ASSISTANT FOR THE SOFTWARE ENGINEERING (SE) PROCESS. A CASE-BASED-REASONING (CBR) APPROACH TO KNOWLEDGE ELICITATION IS PROPOSED AS A SENSITIVE AND EFFECTIVE STRATEGY TO DERIVE AND REPRESENT CRITICAL KNOWLEDGE. PHASE I WILL DEMONSTRATE THE FEASIBILITY OF USING A CBR APPROACH TO DEVELOPING A KNOWLEDGE-BASED ASSISTANT FOR THE EXTENSIVE AND COMPLEX TASKS A ...

THE USE OF THERMAL NEUTRONS AS A TOOL FOR BAGGAGE INSPECTIONIS AN ESTABLISHED TECHNIQUE, WITH A PROTOTYPE SYSTEM CURRENTLY BEING TESTED FOR AIRPORT FEASIBILITY AS AN EXPLOSIVE DETECTION DEVICE. THIS SYSTEM COULD POSSIBLY BE MODIFIED FOR INDIVIDUAL BAGGAGE IDENTIFICATION THROUGH THE USE OF IMAGING OR ACTIVATION DETECTION OF SUITABLE TAGS. HOWEVER, FEASIBILITY TESTING OF THIS CONCEPT AND THE COMMERC ...

THERMAL MANAGEMENT SYSTEMS FOR HYPERSONIC AEROSPACE VEHICLES MUST SIMULTANEOUSLY MEET THREE CHALLENGING REQUIREMENTS: (1) HEAT MUST BE REMOVED AT VERY HIGH HEAT FLUXES FROM SURFACES SUCH AS THE COMBUSTION CHAMBER WALL AND AERODYNAMICALLY HEATED SURFACES, (2) THE PROPELLANT MUST BE PREHEATED TO VERY HIGH TEMPERATURES PRIOR TO COMBUSTION, AND (3) THE SYSTEM'S SIZE AND MASS MUST BE HELD TO A MINIMUM. ...

N/A

PROPOSED IS THE DEVELOPMENT OF AN INNOVATIVE APPROACH TO UNIFIED LIFE CYCLE ENGINEERING (ULCE) FOR EVALUATION OF DIGITAL ELECTRONICS DESIGN. THIS APPROACH CAN BE APPLIED CONTINUOUSLY THROUGHOUT THE BIDDING, INITIAL AND FINAL DESIGN PROCESSES. THE DEVELOPMENT WILL FOCUS ON THE INTEGRATION OF COMPUTER AIDED DESIGN TECHNIQUES WITH A ULCE METHODOLOGY SO THAT BOTH THE CONTRACTOR AND SUPPLIER CAN CONTIN ...

COOLING CONCEPTS FOR RE-ENTRY VEHICLE NOSE TIPS EMPLOY EITHER PASSIVE ABLATIVE TECHNIQUES OR ACTIVE COOLING TECHNIQUES. ABLATIVE TECHNIQUES CAUSE FOREIGN GAS SPECIES FROM THE ABLATION PROCESS TO BE PRESENT IN THE AMBIENT AIR AND EFFECT THE AERODYNAMIC PERFORMANCE OF THE VEHICLE. THE ACTIVE COOLING TECHNIQUES CONSIST OF EITHER A GAS JET NOSE TIP (GJNT) OR A TRANSPIRATION COOLED NOSE TIP (TCNT). THE ...

THE DESIGN OF FEEDBACK CONTROL LAWS FOR SYSTEMS WITH UNKNOWN PARAMETERS AND OTHER SIGNIFICIANT UNCERTAINTIES IS A FUNDAMENTAL PROBLEM IN THE AREA OF AEROSPACE VEHICLE CONTROL. THE APPLICATION OF DISTURBANCE ACCOMMODATING CONTROL (DAC) THEORY TO THIS AREA HAS RESULTED IN A REVOLUTIONARY APPROACH TO THE DESIGN OF ADAPTIVE CONTROL LAWS. THIS APPROACH HAS PROVEN TO BE EXTREMELY EFFECTIVE WHILE, AT THE ...

SEVERAL EXHAUST GAS NO(X) ABATEMENT PROCESSES EXIST BASED ON HETEROGENEOUS REACTION OF A REDUCED NITROGEN CONTAINING ADDITIVES SUCH AS NH(3). NONE OF THESE EXISTING PROCESSES CAN BE USED IN ITS PRESENT FORM TO MEET PROPOSED NO(X) EMISSIONS REGULATIONS ON JET TEST STATIONS AND INCINERATORS. WE PROPOSE TO TEST COMBINATIONS OF ADDITIVES AND CATALYSTS THAT HAVE THE POTENTIAL TO LEAD TO A NEW PROCESS O ...