Award Data

GAASP SOLAR CELLS PLACED ON TOP OF CONVENTIONAL SILICON SOLAR CELL ARRAYS CAN INCREASE THE ENERGY CONVERSION EFFICIENCY OF THE SYSTEM AS MUCH AS 100%. ASTROPOWER DIVISION OF ASTROSYSTEMS, INC. PROPOSES TO DEVELOP A HIGH BAND GAP TOP SOLAR CELL FOR ATTACHMENT TO CONVENTIONALS ILICON SOLAR CELLS. TRANSPARENT GAP SUBSTRATES WILL BE USED WITH EPITAXIALLY GROWN LAYERS OF GAASPH HAVING A BAND GAP OF 1.7 ...

THE GROWTH OF GAAS ON SILICON HAS LONG BEEN RECOGNIZED AS A DESIRABLE APPROACH FOR ADVANCE OPTOELECTRONIC DEVICES INCLUDING OPTICAL INTEGRATED CIRCUITS, OPTICAL COMMUNICATIONBETWEEN CIRCUITS AND AS A SOURCE OF LOW-COST GAAS LAYERS FORSOLAR CELL AND DISPLAY APPLICATIONS. PROGRESS ON THE DEVELOPMENT OF THIS TECHNOLOGY HAS BEEN AFFECTED BY STRAINS AND DISLOCATIONS INTRODUCED INTO THE GAAS LAYER BY TH ...

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THE GOAL OF THIS PROJECT IS TO DETERMINE THE FEASIBILITY OF DEVELOPING A GENERAL PURPOSE TACTILE SENSOR CAPABLE OF IDENTIFYING THE TEXTURE, COMPLIANCE, AND SURFACE FEATURES OF AN OBJECT. THE TACTILE SENSOR WILL CONSIST OF A PIEZOELECTRIC POLYMER MATERIAL WHICH GENERATES AN ELECTRICAL SIGNAL IN RESPONSE TO AN APPLIED FORCE. THE SENSOR WILL BE DESIGNED TO MOVE ACROSS THE OBJECT BEING EXAMINED, AND T ...

HEAT EXCHANGE MATRIX THE FUNCTION OF A HEAT EXCHANGER IS DEPENDENT UPON THE AREA OF EXPOSURE TO THE FLUIDS IN PROCESS. FINS ARE COMMONLY USED TO INCREASE EXTERNAL SURFACE AREAS. TO EXTEND THE INNER SURFACE OF A TUBE OR VESSEL IS MORE DIFFICULT AND THERE IS CURRENTLY NO COST EFFECTIVE METHOD TO DO SO. THIS REDEARCH IS TO DEVELOP THE USE OF A MATRIX COMPOSED OF SMALL, HOLLOW, METAL CYLINDERS, BRAZED ...

FERRIMAGNETIC OXIDES WITH HEXAGONAL CRYSTAL STRUCTURE ARE CHARACTERIZED PRIMARILY BY THEIR FOLIATE (LEAF-LIKE OR PLATELET) STRUCTURE AND HIGH ANISOTROPY FIELDS. THESE HIGHLY ANISOTROPIC COMPOUNDS CAN BE PREPARED AS A COMPOSITE COMPOSED OF SINGLE DOMAIN GRAINS POSSESS ING A SPECTRUM OF CONTROLLED VALUES OF ANISOTROPY FIELDS AND ATTENDANT PREFERRED DIRECTION OF MAGNETIZATION. THESE HEXAGOAL SINGLE D ...

THE RESEARCH IS FOCUSED ON EVALUATING THE FEASIBILITY OF USING A NOVEL ELECTROFORMING PROCESS TO PRODUCE LOW LOSS FERRITE COMPONENTS FOR APPLICATION IN THE EHF REGION. THE PROPOSED PROCESS HAS POTENTIAL FOR REDUCING CONDUCTION LOSS AND IMPROVING DIMENSIONAL CONTROL. ADDITIONAL BENEFITS REGARDING CONFIGURATION AND RELIABILITY ARE ANTICIPATED.

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RECENT ADVANCES IN MICROCOMPUTER TECHNOLOGY HAVE MADE IT POSSIBLE FOR VISUALLY IMPAIRED PERSONS TO CONTINUE NORMALLY WITH THEIR EDUCATION. VOICE SYNTHESIZERS AND TEXT MAGNIFI CATION ENABLE HANDICAPPED INDIVIDUALS TO BEAR RO READ BOOKS,MAGAZINES, AND OTHER PUBLICATIONS WHICH ARE STORED IN D N DIGITAL FROM IN THE MICROCOMPUTER. THE RECENT INTRODUCTION OF A LOW COST, MANUALLY OPERATED, OPTICAL SCANNE ...