Award Data

A LARGE PERCENTAGE OF THE ELECTRONIC INSTRUMENTS IN USE TODAY HAVE AN OSCILLATOR OR WAVEFORM GENERATOR OF SOME SORT. AN OSCILLATOR MAY BE USED SIMPLY AS A SOURCE OR REGULARLY SPACED PULSES, A CLOCK, OR AS THE LOCAL OSCILLATOR IN A RECEIVER. NO MATTER HOW THE OSCILLATOR IS USED IT MUST MAINTAIN ITS FREQUENCY OF OSCILLATION TO A SPECIFIC DEGREE OF ACCURACY. IN A GROWING NUMBER OF APPLICATIONS THESE ...

LOW-COST CIG SIMULATORS FOR WEAPONS TRAINING COULD BE PRODUCED THROUGH THE USE OF VLSI CHIPS SPECIFICALLY DESIGNED TO CARRY OUT THE MAJOR FUNCTIONS OF IMAGE GENERATION, NAMELY 3-D PERSPECTIVE, DIFFUSE REFLECTION AND SHADING, HIDDEN SURFACE REMOVAL AND OCCULTATION IN GENERAL, CLIPPING AND AREA FILL. THESE CHIPS WILL BE FAST ENOUGH TO ALLOW COMPUTATION AT 60 FRAMES/SEC WITH A RESOLUTION OF 1024 X 10 ...

THIS PROPOSED STUDY WILL EXAMINE THE FEASIBILITY OF USING A EULERIAN LIMITED AREA MODEL (LAM) TO IMPROVE PREDICTION OF CHEMICAL, BIOLOGICAL, AND OBSCURANT CLOUDS DURING AMPHIBIOUS OPERATIONS. THE LAM HAS BEEN USED TO PREDICT MESOSCALE AND MICROSCALE METEORO LOGICAL PHENOMENA FOR A WIDE VARIETY OF CLIMATIC REGIMES AND HAS BEEN TESTED FOR A NUMBER OF EXTENSIVE METEOROLOGICAL FIELD EXPERIMENTS. THE L ...

METHYLENE BIS O-CHLORO ANILINE HAS LONG BEEN RECOGNIZED AS A SUPERIOR URETHANE CURATIVE BUT TOXICITY CONCERNS HAVE LIMITED ITS USE. ALTERNATIVE COMPOUNDS ARE AVAILABLE, BUT THEY CANNOT MATCH THE HANDLING AND ULTIMATE PHYSICAL PROPERTIES OF MOCA CURED ELASTOMERS. AN INVESTIGATIONS OF NOVEL PLYAMINE AND POLYOL COMPOUNDS SHOULD YIELD NEW AND USEFUL URETHANE CURATIVES. THE PROGRAM WOULD IN VOLVE SCREE ...

FLAME RETARDANT FLEXIBLE POLYURETHANE FOAM FINDS WIDESPREAD COMMERCIAL USE AS A SEATING MATERIAL DUE TO ITS FAVORABLE COST, SUPPORT, AND RESILIENCE CHARACTERISTICS. HOWEVER, SMOKE AND TOXIC GAS EVOLUTION IN THE EVENT OF FIRE IS A MAJOR PROBLEM. THE GOAL OF THIS PROGRAM IS TO CREATE A FIRE RESISTANT COMPOSITE FOAM STRUCTURE WHICH WILL GENERATE NEGLIGIBLE QUANTITIES OF TOXIC FUMES WHEN EXPOSED TO FI ...

IMPROVED PERFORMANCE OF TONPILZ-TYPE TRANSDUCER ELEMENTS CAN RESULT FROM (1) INCREASING THE AREA OF THE RADIATING FACE AND (2) DECREASING THE MASS OF THE RADIATING HEAD. HOWEVER, SUCH IMPROVEMENT IS LIMITED BY THE INTRODUCTION OF A FLEXURE MODE, WITH THE OUTER RING MOVING AT A DIFFERENT VELOCITY AND PHASE FROM THE INNER AREA OF THE HEAD-MASS. THE UNDESIRABLE RESULT IS A BI-MODAL RESPONSE WITH, GEN ...

FOR NONDESTRUCTIVE EVALUATION TO REMAIN A VERSATILE TOOL, NOT LIMITED BY COMPLEX GEOMETRIES OR MATERIAL TYPES, INDUSTRY MUST REFINE THE EXISTING NONDESTRUCTIVE EVALUATION TECHNIQUES OR DEVELOP NEWER ONES. BECAUSE OF THE RECENT ADVANCES IN HIGHER SENSITIVITY INFRARED DETECTORS, THE AVAILABILITY OF A WIDER SPECTRUM OF OPTICAL MATERIALS, IMPROVEMENTS INFILTERING AND DATA PROCESSING TECHNIQUES, AND TH ...

THE ARRHENIUS METHODOLOGY IS CURRENTLY ACCEPTED AS STATE-OF-THE-ART IN THE REALM OF PREDICTING THERMAL LIFE ON NON-METALLIC MATERIALS. APPLICATION OF THE ARRHENIUS METHODOLOGY REQUIRES THE AVAILABILITY OF EMPIRICAL LIFE TESTING DATA, WHICH MAY BE GENERATED FOR A VARIETY OF PHYSICAL/ELECTRICAL PROPERTIES FOR ANY GIVEN MATERIAL. A LARGE QUANTITY OF SUCH DATA HAS BEEN GENERATED BY A MULTITUDE OF SOUR ...

A PROPOSAL IS PRESENTED HEREIN TO DEVELOP A NUMERICAL PROCEDURE FOR ANALYZING THE SHIP NUMERICAL PROCEDURE FOR ANALYZING THE SHIP PROPELLER TIP VORTEX PROBLEM. THE FLOW IN THIS REGION IS VERY COMPLEX AS IT CONTAINS THREE-DIMENSIONAL, VISCOUS AND CENTRIFUGAL EFFECTS. THE LONG TERMS GOAL OF THE PROPOSED EFFORT WOULD DEVELOP A COMPREHENSIVE PREDICTIVE PROCEDURE FOR THE SHIP PROPELLER TIP REGION WITH ...

TAC PROPOSES TO CONDUCT A STUDY TO EVALUATE THE COMPARATIVE EFFECTIVENESS OF VARIOUS FORWARD-LOOKING AUTONOMOUS SENSORS AND ALGORITHMS FOR TLAM-C. THE CURRENT TLAM-C USES A TERRAIN MAPPING RADAR ALTIMETER AND CORRELATES THE SENSED AREA AT KEY WAYPOINTS WITH A STORED DIGITAL REPRESENTATION OF THE TERRAIN AREA AT THE WAYPOINTS TO PROVIDE MID-COURSE AND TERMINAL GUIDANCE CORRECTION TO THE INERTIAL NA ...