Award Data

There is a global trend towards utilization of satellite communications for information services. Equivalent system temperature, Ts, is a significant parameter in quantifying the antenna system/link performance, because it represents the noise power spectral density in antenna system figures-of-merit, such as receiver gain/system temperature (G/T), and end-to-end Signal to Noise Ratio (SNR). Unf ...

Mistakes made by programmers in the use of pointer variables and dynamic memory allocation is a significant cource of software errors. The development of a suite of tools to aid in the detection of these errors is addressed. These tools will operate both statically and dynamically in order to provide as wide a range of services as possible. The static tool will guarantee that certain pointer ba ...

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A solution to the need for OD 3 to OD 10 neutral density filters in the infrared (2 to 25 um) with flat wavelength dependence is suggested using submicron thickness polymer films as substrates for multi-layer or co-deposited metallic alloy coatings. Initial studies used Lexan and although they showed feasibility, a stronger and more temperature resistant ultrathin substrate such as polyimide film ...

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This project will advance the state of the art of ultrahigh-pressure (UHP) jet machining technology. Existing technology uses water as the working fluid that accelerates abrasive particles in high-velocity, highly coherent jets. Despite successful demonstration and industrial utilization of the technology in cutting, cleaning, drilling, turning, milling, and surface-preparation operations, it re ...

MCNC PROPOSES A FEASIBILITY STUDY AND EVALUATION OF THREE PROMISING APPROACHES TO THE FABRICATION OF SURFACE TEST STRUCTURES ON SILICON. SURFACE FEATURES ON THE FIRST STRUCTURE WILL BE PRODUCED BY CONTROLLABLY ETCHING THERMALLYGROWN OXIDES. FEATURES ON THE SECOND WILL BE MADE BY ETCHING PIEZOELECTRIC THIN FILMS. USING THE PIEZOELECTRIC FILM AS PART OF A CAPACITOR, STEP-HEIGHT CAN BE VARIED AND PRO ...

SURPLUS OFFSHORE OIL PLATFORMS AND SIMILAR STRUCTURES HAVE POTENTIAL AS BASES FOR THE SUPPORT OF OFFSHORE AQUACULTURE OPERATIONS. ONE CONCEPT DEVELOPED AT NET SYSTEMS ENVISIONS A PLATFORM SURROUNDED BY, AND HELPING TO SUPPORT, A RINGSHAPED ARRANGEMENT OF FLOATING FISH PENS. HOWEVER, BEFORE SUCH STRUCTURES CAN BE INCORPORATED INTO AQUACULTURE SYSTEMS, WE NEED TO BE ABLE TO PREDICT THEIR RESPONSE TO ...

INADEQUATE STARTER FEEDS SEVERELY HOLD BACK NEW AQUACULTURE ENTERPRISES SUCH AS PRESENT ATTEMPTS TO RAISE FISHES WHOSE LARVAE DEVELOP FROM SMALL EGGS AND HAVE VERY "DIFFICULT" FOOD REQUIREMENTS. INERT LARVAL FEEDS HAVE NOT SUCCESSFULLYELIMINATED THE STRICT DEPENDENCY ON NATURAL FORAGE DURING THE CRITICAL POST-LARVAL STAGE AFTER YOLK ABSORPTION AND BEFORE THE DEVELOPMENT OF A DIGESTIVE SYSTEM WITH ...