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MOST TYPICAL PROBLEMS IN STRUCTURAL ENGINEERING ARE BEST ANALYZED BY APPROXIMATING AN OBJECT'S GEOMETRY WITH FINITE ELEMENTS. SELECTING AN APPROPRIATE MESHING STRATEGY FOR A GIVEN SOLID REQUIRES KNOWLEDGE ABOUT FINITE ELEMENT THEORY IN GENERAL, AND ABOUT PACKAGE-SPECIFIC DETAILS IN PARTICULAR. THE ADEPT SYSTEM INTEGRATES A TRADITIONAL SOLIDMODELER WITH AN EXPERT SYSTEM EQUIPPED WITH THIS KNOWLEDGE ...

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THE OBJECTIVE OF THIS PROJECT IS TO DESIGN AND FABRICATE AN INNOVATIVE FINGERTIP-SHAPED TACTILE TELEPRESENCE SYSTEM FOR DEXTEROUS TELEROBOTIC SYSTEMS. THE PRINCIPAL TASKS TO BE PERFORMED ARE: (1) DESIGN OF VARIOUS MINIATURE TACTILE STIMULATOR ELEMENTS AND EVALUATION OF THE ACTUATION STRENGTH, DISPLACEMENT MAGNITUDE, FREQUENCY RESPONSE RANGE, AND THERMAL LOADING CHARACTERISTICS, (2) CONSTRUCTION OF ...

NASA IS CURRENTLY SUPPORTING A VERY PROMISING PROJECT FOR DEVELOPMENT OF A HIGH-POWERED MULTIPROCESSOR SYSTEM, THE NAVIER-STOKES COMPUTER (NSC). WHILE MULTILEVEL ALGORITHMS ARE BEING STUDIED IN THE NSC ENVIRONMENT FOR SOLVING THE ELLIPTIC EQUATIONS THAT ARISE IN DISCRETIZING INCOMPRESSIBLENAVIER-STOKES EQUATIONS, NO RESEARCH HAS YET FOCUSED ON LOCAL ADAPTIVE SCHEMES FOR THIS PURPOSE. THIS IS IMPOR ...

THE USE OF IMAGERY FOR THE PRESENTATION OF DATA IS BECOMING INCREASINGLY COMMON. INTEGRATING IMAGE DATA WITH GRAPHIC DATA STRUCTURES AND FEATURE INFORMATION IS VERY DIFFICULT USING TRADITIONAL DIGITAL REPRESENTATIONS. SEPARATE IMAGE AND FEATURE INFORMATION DATABASES ARE COMMONLY USED, BUT THE ANALYST IS REQUIRED TO MAINTAIN TWO OR MORE DATABASES AND TO PERFORM INTEGRATION OF THE INFORMATION IN HIS ...

THE AIM OF THIS PHASE I PROPOSAL IS AUTOMATE A SIMPLIFIED PROTOTYPE OF A LOGICAL FILE DESIGN METHODOLOGY. THE METHODOLOGY, DEVELOPED BY THE PRINCIPAL INVESTIGATOR, IS BASED ON PROVEN UNDERLYING DATABASE DESIGN PRINCIPALS. OVER80 EMPLOYEES AT MARTIN MARIETTA DATA SYSTEMS HAVE RECEIVED TRAINING IN THIS METHODOLOGY AND HAVE GIVEN IT HIGH MARKS ASA USEFUL DATABASE DESIGN TOOL. THE PROTOTYPE TO BE DEVE ...

PRESENT ELECTRONIC TRAVEL AIDS FOR THE BLIND USE EITHER ULTRASOUND OR LASER AS THE SENSING DEVICE. THEY ALSO PRO- VIDE AN ABSOLUTE REFERENCE RELATIVE TO THE USER WHICH MAY NOT BE THE BEST WAY OF INTERPRETING THE ENVIRONMENT. THIS PROPOSAL WILL INVESTIGATE THE USE OF AN ALTERNATE SENSOR, MICROWAVE, AND PRESENTATION OF THE ENVIRONMENT USING A DOP- PLER SIGNAL. DOPPLER MAY BE A BETTER METHOD OF DISPL ...

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NEW NASA SATELLITE REMOTE SENSING PROGRAMS SUCH AS TRMM, WHICH INTEND TO MEASURE GLOBAL PRECIPITATION, REQUIRE "GROUND TRUTH" CALIBRATION. PRECIPITATION MEASUREMENT IS ESPECIALLY DIFFICULT FROM SHIPS AT SEA, WHICH ARE THE PRIMARY "SEA TRUTH" AVAILABLE OVER MOST OF THE EARTH'S SURFACE. CONVENTIONAL GAGES ARE UNSUITED TO MARINE PLATFORMS. IF SUCCESSFUL, THIS RESEARCH WILL RESULT IN A PRACTICAL AND I ...