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BECAUSE OF THE COMPLEXITY OF THE HELICOPTER FLOW FIELD, A ZONAL METHOD OF ANALYSIS OF COMPUTATIONAL AERODYNAMICS IS REQUIRED. IN THIS RESEARCH, A NEW PROCEDURE FOR COUPLING POTENTIAL AND VISCOUS FLOW CALCULATION SCHEMES IS PROPOSED. AN OVER-LAPPING, VELOCITY-COUPLING TECHNIQUE IS TO BE DEVELOPED WITH THE UNIQUE FEATURE THAT THE POTENTIAL FLOW SURFACE SINGULARITY STRENGTHS ARE OBTAINED DIRECTLY FRO ...

A GRID ADAPTION PROCEDURE IS PROPOSED FOR A RECENTLY DEVELOPED CLASS OF NAVIER-STOKES SOLVERS WHICH USE RELAXATION RATHER THAN APPROXIMATE FACTORIZATION TO SOLVE THE LINEAR SYSTEM OF EQUATIONS. THE OBJECTIVE OF THE PROPOSED WORK IS THE IMPLICIT COUPLING OF AN EXISTING TWO-DIMENSIONAL NAVIER-STOKES CODE AND AN EXISTING TWO-DIMENSIONAL GRID ADAPTION CODE. THE GRID ADAPTION USES A SPRING/DAMPER ANALO ...

DESIGN AND FABRICATION OF SOLID-STATE DIRECTION-INDICATING APPARATUS, WITH TILT-IMMUNITY, THAT PROVIDES AN AUDIBLE OR TACTILE INTERFACE WITH THE USER. REDUCED SIZE TO ALLOW ENCAPSULATION IN A TYPICAL WALKING CANE. A DEVICE WILL BE DESIGNED THAT WILL PROVIDE A VISUALLY IMPAIRED PERSON WITH AN INDICATION OF HORIZONTAL DIRECTION, WITH RESPECT TO THE EARTH'S MAGNETIC FIELD. THE DEVICE WILLALSO SIGNAL ...

THIS PROPOSAL REQUESTS DEPARTMENT OF EDUCATION SUPPORT FOR EDMARK, A SMALL BUSINESS IN BELLEVUE, WASHINGTON, TO DEVELOPAND FIELD-TEST A HARDWARE/SOFTWARE PACKAGE TO ADDRESS THE POSSIBLE DISABILITIES BY TEACHERS AND PARAPROFESSIONALS. PUBLIC LAW 99-457 REQUIRES THE IDENTIFICATION AND PROVISION OF SERVICES TO YOUNG CHILDREN WITH DISABILITIES. QUALIFIED PERSONAL, REMOTE LOCATION, OR OTHER REASONS. A ...

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STIRLING TECHNOLOGY COMPANY (STC) WILL DEVELOP AND TEST THE TECHNOLOGY DEMONSTRATION MODEL (TDM) MODEL OF A LONG LIFE VIRTUALLY VIBRATIONLESS CRYOFLEX STIRLING CRYOCOOLER FOR COOLING SENSORS TO THE 65 TO 80 K TEMPERATURERANGE. FLEXURAL BEARING AND GAS CLEARANCE SEAL TECHNOLOGIESPROVIDE THE POTENTIAL FOR 10- TO 15-YEAR LIFE. STC HAS LONGSTANDING EXPERIENCE AND CURRENT RESEARCH INTERESTS AND ACTIVIT ...

STIRLING TECHNOLOGY COMPANY (STC) WILL DEVELOP AND TEST THE TECHNOLOGY DEMONSTRATION MODEL (TDM) MODEL OF A HIGH EFFICIENCY, LONG LIFE, LOW VIBRATION CRYOFLEX DOUBLE-EXPANSION CRYOGENIC PRE-COOLER TO BE USED AS A STANDARD FLIGHT PRE-COOLER FOR REJECT HEAT REMOVAL FROM ALTERNATIVE VERY LOW TEMPERATURE CRYOCOOLER STAGES. THE KEY OBJECTIVES FOR THE CRYOGENIC PRE-COOLER ARE HIGH EFFICIENCY, LOW VIBRAT ...

THE PROGRESSIVE SCIENCE INSTRUCTION PACKAGE WILL BE A SOFTWARE AND COURSEWARE PACKAGE WHICH WILL TEACH SCIENCE IN GRADES 6-9 TO STUDENTS WHOSE NATIVE LANGUAGE IS NOT ENGLISH. STUDENTS USING THE PACKAGE WILL LEARN SCIENCE MATERIAL IN MICROCOMPUTER-BASED TUTORIAL DIALOGS THAT INCORPORATE INTERACTIVE VIDEO, GRAPHICS, AND MULTIPLE LEVELSOF TEXTUAL RESPONSES AND REMEDIATIONS. THE STUDENTS WILL WORK PAP ...

SPATIAL INFORMATION SCIENCES, INC. PROPOSES TO CONDUCT A RESEARCH PROJECT LEADING TO THE ESTABLISHMENT OF A CAPABILITY TO COMBINE RASTER AND VECTOR DATA STRUCTURES INTO A UNIFIED DATA SET. THIS UNIFICATION OF DATA STRUCTURES WILL ALLOW FOR THE SIMULTANEOUS, INTERACTIVE EDIT OF THE COMBINED STRUCTURES TO INCLUDE GEOGRAPHICAL POSITION EDITS AND DATA VALUE MODIFICATIONS, AND THE RESTRUCTURING OF RAST ...

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