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TODAY AN OVERWHELMING MAJORITY OF CFD CALCULATIONS ARE DONE WITH STANDARD FIXED GRID FINITE DIFFERENCE METHODS. HOWEVER, A SIMPLE CALCULATION CAN ESTABLISH THAT SUCH METHODS CANNOT POSSIBLY EXPLOIT THE FULL COMPUTING POWER OF TODAY'S COMPUTING EQUIPMENT NOR CAN THEY DELIVER HIGHLY ACCURATE SIMULATIONS OF FINE SCALE FLOW PHENOMENA IN COMPLEXFLOW DOMAINS. TO FULLY EXPLOIT CONTEMPORARY COMPUTING CAPA ...

THIS PROJECT INVOLVES ANALYSIS AND DESIGN OF SEVERAL CONFIGURATIONS FOR PASSIVE AIRBLAST VALVES TO STRONGLY ATTENUATE BLAST FROM CONVENTIONAL WEAPONS. DESIGN GOALS ARE ATTENUATION OF INCIDENT BLAST OVERPRESSURES BY AT LEAST TWO ORDERS OF MAGNITUDE, WHILE OFFERING NO MORE RESTRICTION TO NORMAL AIRFLOW THAN EXISTING ACTIVE BLAST VALVES. WE PROPOSE TO BASE OUR DESIGNS ON VENTED PANEL CONFIGURATIONS W ...

THE U.S. AIR FORCE AND OTHER DEFENSE ELEMENTS HAVE RECOGNIZED THE NEED TO SOLVE THE PROBLEM OF LACK OF SURVIVABILITY OF CURRENT AIR TRAFFIC MANAGEMENT CAPABILITIES IN A TACTICAL ENVIRONMENT. AS PART OF THE TRANS-CENTURY SOLUTION TO THIS PROBLEM, THE DEVELOPMENT OF THE AUTOMATED TACTICAL LAUNCH AND RECOVERY SYSTEM (ATALARS) MUST INTEGRATE EMERGING AUTOMATION CAPABILITIES AND DISPLAY TECHNOLOGIES IN ...

THE MAIN OBJECTIVE OF THIS PHASE I PROJECT WAS TO ESTABLISH A SOURCE OF SERUM-FREE MEDIUM SUITABLE FOR SUSTAINED GROWTH OF EARLY PASSAGE SYRIAN HAMSTER EMBRYO (SHE) CELLS. SPECIFIC AIMS INCLUDED SELECTION OF A BASAL MEDIUM SUPPORTIVE OF CLONAL GROWTH IN LIMITING SERUM CONCENTRATIONS, REPLACEMENT OF SERUM BY SELECTED GROWTH FACTORS AND HORMONES, OPTIMIZATION OF SUPPLEMENTS BY CLONAL TITRATIONS, AND ...

THE PURPOSE OF THIS RESEARCH IS TO FABRICATE AND TEST THE EFFICACY OF CULTURE DISHES WITH UNIQUE SURFACES. THIN FILMSOF METAL, METAL ALLOYS AND CERAMICS WILL BE APPLIED TO STANDARD POLYSTYRENE CULTURE DISHES. GROWTH OF FIBROBLAST AND OSTEOBLAST CELL LINES ON THE CULTURE PLATES WILL SERVE AS MODELS OF SOFT TISSUE AND HARD TISSUE MAMMALIAN CELLS. CELL MORPHOLOGY AND GROWTH WILL BE MONITORED BY PHASE ...

ACOUSTO-OPTIC (AO) BRAGG CELLS OFFER THE ADVANTAGES OF RELATIVELY LOW POWER CONSUMPTION AND THE ABILITY TO PRODUCE MULTIPLE OUTPUT OPTICAL BEAMS OF VARYING INTENSITY FOR ONE BEAM ENTERING THE SYSTEM. THE MAJOR DISADVANTAGE OF THEAO DEVICE IS ITS ACOUSTIC WAVEFORM PROPAGATION DELAY, WHICH SETS A FUNDAMENTAL LIMIT ON DEVICE SPEED. ELECTRO-OPTIC (EO) DEVICES, ON THE OTHER HAND, OFFER AN ORDER OF MAGN ...

A NEW AND INNOVATIVE CLASS OF ADAPTIVE COMPUTATIONAL PROCEDURES IS TO BE DEVELOPED FOR THE SPECIFIC PURPOSE OF NUMERICALLY-MODELING COMPLEX FLOWS INHERENT IN ADVANCED HELICOPTER-BLADE DESIGNS. THESE PROCEDURES MAKE USE OF MATHEMATICALLY CONSISTENT ESTIMATES OF LOCAL NUMERICAL ERROR, AND AUTOMATICALLY REFINE OR UNREFINE THE MESH OR INCREASE OR DECREASE THE LOCAL SPECTRAL ORDER OF THE APPROXIMATION ...

THE PROPOSED PROGRAM INVESTIGATES THE USE OF MULTI-EXPERT SYSTEM CONCEPTS FOR TERRAIN AND TACTICAL KNOWLEDGE, AND APPLIED THOSE CONCEPTS TO TRACK HISTORY FILES PRODUCED BY A GROUND SURVEILLANCE RADAR TRACK PROCESSOR. PRESENTLY, A TRAINED OPERATOR MUST EXAMIND THE TARGET REPORTS, WHICH ARE DISPLAYED AGAINST A TERRAIN OVERLAY, AND ATTEMPT TO DETERMINE THE NATURE OF THE TARGET AND ITS HOSTILE INTENT. ...

THE OBJECTIVE OF THIS PROJECT IS TO (1) PROCESS LARGE NUMBERS OF CLONES THROUGH COLONY PICKING, (2) REPOSITION THECOLONIES IN LARGE RECTANGULAR ARRAYS, (3) PURIFY COLONIES BYRECLONING AS NECESSARY, (4) PROCESS THE DNA FROM EACH COLONYTO ALLOW RECOMBINANT DNAS TO BE TRANSFERRED TO NITROCELLULOSE OR OTHER FILTER MATERIALS, (5) PROBE THE ARRAYS EN MASSE WITH DNA PROBES UNDER DIFFERENT STRINGENCY COND ...