Award Data

IN RECENT YEARS, CONSIDERABLE ATTENTION HAS BEEN FOCUSED ON THE DEVELOPMENT OF TECHNIQUES FOR GENETIC TRANSFORMATION OF HIGHER PLANTS. MOST ADVANCES HAVE BEEN MADE USING EITHER PETUNIA OR NICOTIANA AS A MODEL EXPERIMENTAL SYSTEM, MAINLY BECAUSE THESE PLANTS RESPOND WELL FOR REGENERATION IN CELL CULTURE. THERE IS AN OBVIOUS NEED TO EXTEND THESE STUDIES TO OTHER SPECIES, FOREST TREES IN PARTICULAR, ...

THE OBJECTIVE IS TO DEVELOP A TOOL FOR DESIGNING VORTEX FLAPS ON ADVANCED FIGHTER AIRCRAFT INCLUDING THE EFFECTS OF VISCOSITY. ANALYTICAL METHODS, INC. PROPOSES TO USE AN UNSTEADY TIME-STEPPING VERSION OF ITS SURFACE SINGULARITY PANEL METHOD, VSAERO, AS A BASIS FOR THIS WORK. THIS WILL GENERATE THE PRELIMINARY VORTEX STRUCTURE (LEADING-EDGE VORTICE, FOREBODY VORTICES, ETC.) FOR THE COMPLETE CONFIG ...

THE FLOW FIELD ABOUT POWERED LIFT VEHICLES CAN BECOME VERY COMPLEX DUE TO HIGH ANGLES OF ATTACK AND LIFTING JETS. IN ADDITION TO MODELING PROPULSION/AIRFRAME INTERACTIONS, THEREFORE, FLOW PREDICTION METHODS MUST TREAT THE PROBLEMS OF SEPARATION AND THE TRANSIENT EFFECTS OF PASSING VORTICAL STRUCTURES INTERACTING WITH THE AIRFRAME. ANALYTICAL METHODS, INC. (AMI) PROPOSES TO EXTEND ITS POWERED LIFT ...

N/A

WOOD WAFERBOARD COULD BE UTILIZED FOR SIDING AND OTHER EXTERIOR EXPOSURE APPLICATION IF IT WERE MORE DIMENSIONALLY STABLE WHEN EXPOSED TO CYCLIC HUMIDITY CONDITIONS OR ENVIRONMENTS WHERE THE PRODUCT ABSORBS MOISTURE. ASPEN WAFERBOARD MARKETS COULD BE EXPANDED IF THE THICKNESS SWELLING AND LINEAR EXPANSION UNDER WET CONDITIONS WERE EQUAL TO OR LESS THAN PLYWOOD. A FEASIBILITY STUDY WILL DETERMINE T ...

THE USE OF COMPUTER CODES THAT SIMULATE FLUID FLOWS IS BECOMING INCREASINGLY IMPORTANT IN THE DESIGN OF AIRCRAFT COMPONENTS. THE CURRENT STATE OF THE TECHNOLOGY OF NUMERICAL SIMULATION OF VISCOUS FLUID FLOWS IS SUFFICIENT FOR DEVELOPING ENGINEERING TOOLS FOR FLOW ANALYSIS OF VARIOUS TYPES OF COMPLEX THREE-DIMENSIONAL FLUID FLOWS. OF PARTICULAR INTEREST ARE FLOWS WITH AERODYNAMIC BODIES PERIODICALL ...

N/A

OPTOELECTRONIC SOURCES, INTEGRATED AS MONOLITHIC ELEMENTS ON SILICON VLSI CHIPS, OFFER IMPORTANT ADVANTAGES IN THE TRANSMISSION OF INFORMATION WITHIN THE CHIP OR BETWEEN CHIPS IN ADVANCED COMPUTER SYSTEMS. THE SPEED OF OPTICAL-INTEGRATED VLSI DEVICES IS EXPECTED TO BE CONSIDERABLY HIGHER THAN EQUIVALENT VLSI WITH METALLIC INTERCONNECTS, DUE TO ABSENCE OF THE RC DELAY INHERENT IN THE METALLIC CONDU ...

THE ULTIMATE HIGH-EFFICIENCY CRYSTALLINE SILICON SOLAR CELL DESIGN CONSISTS OF A THIN FILM OF ELECTRICALLY-ACTIVE SILICON EPITAXIALLY GROWN ON AN OXIDE-OVERCOATED, INFRARED-TRANSPARENT GALLIUM PHOSPHIDE (GAP) SUBSTRATE. IN ADDITION TO HIGH CONVERSION EFFICIENCY AND INTRINSIC RADIATION RESISTANCE DUE TO THE THIN ACTIVE LAYERS, THIS NOVEL DESIGN HAS SEVERAL UNIQUE PERFORMANCE ENHANCING FEATURES. THE ...

THE EFFECT OF SCALING DOWN DEVICE DIMENSIONS OF VLSI STRUCTURES AND THE COMBINATION OF INCREASED CIRCUIT COMPLEXITY DURING THE SCALING PROCESS IS PLACING SEVERE LIMITATIONS ON THE MINIMUM PROPAGATION DELAY OF METALLIC INTERCONNECTS. OPTICAL INTERCONNECTS REMOVE THOSE SPEED LIMITATIONS AND OFFER A DEGREE OF FLEXIBILITY THAT ELECTRICAL INTERCONNECTS COULD NEVER OBTAIN. THE KEY OPPORTUNITY IS TO INTE ...