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FATIGUE LIFE ENHANCEMENT OF BUSHED TITANIUM LUGS WILL BE INVESTIGATED. A UNIQUE TECHNBIQUE, FORCEMATE (FM), FOR INSTALLATION OF BUSHINGS WILL BE DEMONSTRATED. EFFECT OF PROCESS PARAMETERS WILL BE EVALUATED AND THOSE PARAMETERS OPTIMIZED FOR THE PARTICULAR CONFIGURATION UNDER INVESTIGATION. AT EACH PHASE OF THE INVESTIGATION, FATIGUE LIFE COMPARISONS WILL BE MADE BETWEEN LUGS AND BUSHINGS INSTALLED ...

THE DRUG INFORMATION SYSTEM (DIS) SOFTWARE AND ASSOCIATED DATABASES PROVIDE FOR THE REGISTRATION OF NEW CHEMICALS, SAMPLE TRACKING, INVENTORY CONTROL, AND THE STORAGE AND RETRIEVAL OF TEXTUAL AND NUMERIC DATA IN SUPPORT OF THE NCI DEVELOPMENTAL THERAPEUTICS PROGRAM, UNDER WHICH LARGE NUMBERS OF CHEMICALS ARE SCREENED FOR ANTI-CANCER ACTIVITY. THIS SOPHISTICATED AND COMPLEX DATABASE SYSTEM IS PRESE ...

THE PHARMACEUTICAL RESOURCES BRANCH (PRB) OF THE DIVISION OF CANCER TREATMENT OF THE NATIONAL CANCER INSTITUTE IS RESPONSIBLE FOR THE PROVISIONS OF PHARMACEUTICAL SERVICES TO THE CLINICAL PROGRAMS WITHIN THE DIVISION. THESE SERVICES INCLUDE THE SYNTHESIS OF DRUGS, AS WELL AS THE STORAGE AND DISTRIBUTION OF THE DRUGS TO VARIOUS CONTRACTORS. THIS PROPOSAL DESCRIBES A TRACKING SYSTEM TO SUPPORT THE P ...

THE DEVELOPMENT OF A NEW MATERIAL TERMED "FIBROUS CARBON" IS PROPOSED. THIS MATERIAL IS FORMED BY THE PLASTICIZATION AND COMPACTION OF STABILIZED POLYACRYLONITRILE FIBERS FOLLOWED BY PYROLYSIS. PREVIOUS WORK HAS SHOWN GOOD TRANSLATION OF AXIAL FIBER PROPERTIES INTO THE FIBROUS CARBON. THIS PROPOSAL ADDRESSES THE DEVELOPMENT OF IMPROVED SHEAR PROPERTIES IN CARBON BASED MATERIALS NEEDED FOR AIR FORC ...

A DURABLE, LIGHTWEIGHT, REUSABLE MATERIAL IS REQUIRED FOR THERMAL PROTECTION OF ATMOSPHERIC SYSTEMS AND EXO-ATMOSPHERIC VEHICLES. THIS PROJECT IS DIRECTED TOWARDS 3-DIMENSIONALLY (CARTESIAN) WOVEN CONSTRUCTIONS OF NEXTEL 312 AND NICALON FIBERS IMPREGNATED WITH A POLYCARBOSILANE RESIN. FOLLOWING IMPREGNATION, THESE CONSTRUCTIONS WILL BE PYROLYZED TO YIELD A SIC MATRIX TO PROVIDE HIGH TEMPERATURE RE ...

A SUBSTANTIAL AMOUNT OF THERMAL PROTECTION SYSTEM (TPS) MATERIAL CAN BE REMOVED BY ABLATIVE AND MECHANICAL EROSION. THIS CAN CAUSE CATASTROPHIC FAILURE OR STABILITY AND ACCURACY PROBLEMS OF REENTRY VEHICLES. THE TPS MUST BE ABLE TO PROTECT THE SUBSTRUCTURE AND INTERNAL COMPONENTS FROM DAMAGE INCURRED BY AERODYNAMIC HEATING AND PARTICLE IMPACT BUT NOT SUFFER WEIGHT PENALTIES ASSOCIATED WITH "OVERKI ...

THE EXCELLENT PROPERTIES OF CARBON-CARBON (C/C) COMPOSITES MAKE THESE MATERIALS PRIME CANDIDATES FOR HIGH TEMPERATURE RESISTANT STRUCTURES ON ADVANCED MISSILES. HOWEVER, C/C COMPONENTS MUST BE JOINED TOGETHER TO PRODUCE A FINAL STRUCTURE. THE USE OF ADHESIVE BONDING AND METALLIC FASTENERS IS NOT PRACTICAL AT HIGH TEMPERATURES. THE MOST DESIRABLE FASTENER TO JOIN C/C COMPOSITES TOGETHER WOULD BE FA ...

A MAJOR CAUSE OF ENGINE FAILURE IN COMBAT AND TACTICAL VEHICLES IS OVERHEATING DUE TO DETERIORATION OF COOLING SYSTEM PERFORMANCE WITH TIME AND USE. THIS PROPOSAL DESCRIBES THE EXPLORATORY DEVELOPMENT OF A COOLING SYSTEM DEGRADATION INDICATOR. THE EFFICIENCY OF A COOLING SYSTEM WILL BE ASSESSED BY COMPARING THE DEGREE OF COOLING PRESENTLY BEING ACHIEVED WITH A STANDARD VALUE THAT IS INDICATIVE OF ...

AN ICING DETECTION SYSTEM BASED ON OPTICAL REFRACTOMETRIC TECHNIQUES IS DESCRIBED IN THIS PROPOSAL. THE FIRST OMEGA GROUP, INC. PROPOSES TO DEMONSTRATE THE APPLICABILITY OF THIS CONCEPT TO ENABLE THE CONSTRUCTION OF ICING MONITORING EQUIPMENT SUITABLE FOR INCLUSION IN PROPULSION TEST UNITS CONDUCTING SIMULATED ALTITUDE TESTING OF TURBINE ENGINES WITH INLET TEMPERATURES AS LOW AS MINUS 80 DEGREES F ...