Award Data

N/A

THE ESTIMATION OF THE COMPUTER CAPACITIES REQUIRED TO SUPPORT A MISSION ARE USUALLY THE SUBJECT OF MUCH DISCUSSION. ESTIMATES OF THE WORKLOAD AND OTHER PARAMETERS VARY GREATLY. THE REASON FOR THIS IS THAT MOST APPLICATIONS DO NOT FIT THE TRADITIONAL TIMING AND SIZING EFFORT. NONE OF THE THREE COMPONENTS (WORKLOAD, PERFORMANCE REQUIREMENTS AND ARCHITECTURE) IS USUALLY PRESENT. WE CONTEND THAT THE M ...

N/A

THE OPERATIONS OF A THERMODYNAMIC VENT SYSTEM (TVS) WILL BE INVESTIGATED WITH THE GOAL OF OPTIMIZING THE PERFORMANCE OF THE CRYOGENIC STORAGE SYSTEM FOR LONG TERM STORAGE. A TEN YEAR STORAGE LIFE IS THE ULTIMATE GOAL TO BE ACHIEVED. THE EFFECTS OF THE VENTED GAS ON IMPROVING THE PERFORMANCE OF A MULTILAYER INSULATION SYSTEM WILL BE OPTIMIZED BY VARIATION OF PARAMETERS. THE OBJECTIVE IS TO MINIMIZE ...

A MICROCLIMATOLOGICAL WEATHER STATION DESIGN IS PROPOSED WHICH INCORPORATES RESEARCH QUALITY INSTRUMENTS CAPABLE OF MEASURING HEAT FLUXES DIRECTLY. RECENT TECHNOLOGICAL ADVANCES HAVE ENABLED THESE INSTRUMENTS TO OPERATE IN REMOTE, LOW POWER, UNATTENDED APPLICATIONS. ULTRASONIC TECHNOLOGY IS USED TO MEASURE SENSIBLE AND LATENT HEAT FLUXES USING THE EDDY CORRELATION METHOD. THE WEATHER STATION IS DE ...

N/A

THE PRIMARY OBJECTIVE OF THIS RESEARCH IS TO DEVELOP A METHOD THAT WILL IMPROVE BOTH THE RELIABILITY AND PREDICTABILITY OF WELDING AGE HARDENING ALUMINUM ALLOYS. THIS MAY BE ACCOMPLISHED BY USING AN IMPROVED VASR (VIBRATORY AGING AND STRESS RELIEF) SYSTEM, SQUARE WAVE PULSED ARC WELDING, AND POSSIBLY A COMBINATION OF BOTH TECHNIQUES. VASR TECHNIQUES INCLUDE TESTING IN BOTH THE SUBRESONANT AND RESO ...

CONTRACTOR WILL DEVELOP A LAGRANGIAN FORMULATION FOR THE ELECTROMAGNETIC RESPONSE OF A METALLIC ENCLOSURE WITH THIN, SLIGHTLY DIFFUSIVE WALLS AND A WIRE SPANNING THE ENCLOSURE. CONTRACTOR WILL FIRST DERIVE A LAGRANGIAN OPERATOR ON THE FIELDS WHICH IS STATIONARY WHEN MAXWELL'S EQUATIONS ARE SATISFIED. THE LAGRANGIAN WILL THEN BE USED TO DETERMINE THE ENCLOSURE EIGENMODES (WIRE INCLUDED) AND THE AMP ...

CODES CURRENTLY EXIST THAT WILL CALCULATE THE ELECTROMAGNETIC ENVIRONMENT (EMP) PRODUCED BY A BEAM OF COLLIMATED GAMMA RAYS. THE COLLIMATION MAY BE EITHER CYLINDRICAL OR CONICAL. THE CURRENT EFFORT WILL BE TO INSTALL THE CODES ON AN ARMY CRAY COMPUTER AND TO SET THEM UP AND RUN THEM FOR PROBLEMS OF INTEREST TO THE ARMY.

DEFINITION OF THE STRUCTURE-MEDIA INTERACTION (SMI) LOADS ON A BURIED STRUCTURE IS ONE OF THE LARGEST SOURCES OF UNCERTAINTY IN ANALYZING THE SURVIVABILITY OF STRATEGIC STRUCTURES. ADVANCEMENT OF THE STATEOF-THE-ART IN THE MODELING OF SMI BEHAVIOR IS HAMPERED BY A LIMITED DATA BASE WHICH IS CONFINED TO OVERPRESSURES MUCH SMALLER THAN THOSE CURRENTLY OF INTEREST. THIS EFFORT PROPOSES TO DEVELOP AND ...