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THE PRIMARY OBJECTIVE OF THE PROPOSED RESEARCH IS TO DESCRIBE A METHODOLOGY FOR DEVELOPING AN INTERACTIVE MULTIMEDIA ENVIRONMENT THAT MOTIVATES YOUNG STUDENTS TO PURSUE PATHS OF LEARNING IN SCIENCE AND MATHEMATICS. A VARIED ASSORTMENT OF TECHNOLOGIES AND INSTRUCTIONAL TECHNIQUES WILL BE EMPLOYED TO CREATE AN ENGAGING LEARNING ENVIRONMENT THAT INTUITIVELY ILLUSTRATES THE MEANING AND SIGNIFICANCE OF ...

THIS PROJECT IS DEVELOPING A NEW SOLID-STATE BIOSENSOR TECHNOLOGY FOR BIOLOGICAL MEASUREMENTS. THIS TECHNOLOGY IS BASED ON THE MERGING OF TWO RELATIVELY DIFFERENT TECHNOLOGIES: NUCLEIC ACID PROBES (DNA HYBRIDIZATION TECHNOLOGY) WITH ACOUSTIC PLATE MODE (APM) MICROSENSORS. RECENT ADVANCES IN THE DESIGN AND OPERATION OF APM DEVICES HAVE DEMONSTRATED A DNA HYBRIDIZATION SENSOR PRINCIPLE WITH EXCELLEN ...

EARLIER WORK HAD SHOWN THAT THERE EXISTS A SYNERGISTIC EFFECT BETWEEN QUATERNARY AMMONIUM COMPOUNDS AND CHLORINE DIOXIDE (US PATENT 4,073,888 TO PETTIBONE LABORATORIES, A SUBSIDIARY OF INTERNATIONAL DIOXCIDE, INC.) THIS COMPOSITION IS A SOLUTION WHICH RECENTLY WAS SHOWN TO PASS THE SUTURE LOOP TEST (AOAC SPOROCIDAL OFFICIAL METHOD) IN 6-9 HOURS INDICATING THE COMPOSITION TO BE SPOROCIDAL AND A COL ...

A NEW SYSTEM FOR THE ELECTROLYTIC RECOVERY OF METALS FROM AQUEOUS SOLUTIONS WITH A UNIQUE ELECTRODE CONFIGURATION IS PROPOSED. THIS SYSTEM WOULD USE A CATHODE CONSISTING OF A LIQUID FLUIDIZED BED OF METAL POWDER, CARBON POWDER, OR METALLIZED PLASTIC BALLS. THE CATHODE SHOULD PROVIDE A SIGNIFICANTLY LARGER SURFACE AREA THAN A STANDARD SOLID CATHODE AND CONSEQUENTLY WILL INCREASE THE EFFICIENCY OF T ...

COMPOSITE MATERIALS OFFER A WIDE RANGE OF ATTRIBUTED THAT CAN IMPROVE THE PERFORMANCE AND REDUCE THE COST OF NEW SUBMARINES. COMPOSITES HAVE NOT YET BEEN USED EXTENSIVELY IN SUBMARINES BECAUSE THERE IS LITTLE EXPERIENCE IN THE SUBMARINE ENGINEERING COMMUNITY ON WHICH TO BASE COMPONENT DESIGN. COMPOSITES, UNLIKE METALS, HAVE A VERY LIMITED BODY OF DESIGN GUIDANCE SPECIFICALLY ORIENTED TO SUBMARINE ...

1Reliable and continuous power to submarine electronics is essential for mission execution and for the safe operation of the ship. Digital electronics cannot continue operation through even very short power outages cause by bus transfer devices that have historically been sufficient for analog combat systems. The restart and reload that a digital system must execute after a short power interruptio ...

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We are developing erbium doped fiber amplifiers (EDFAs) for optical communication systems, local area networks, fiber sensors and optical measuring instruments. The EDFA is a new and revolutionary technology that is having a profound effect on the design of lightwave system architectures and other applications. Never has a technology blossomed as fast as the EDFA: it went from a twinkle in the eye ...

LIKE HUMAN RECOGNITION PERFORMANCE, COMPUTER RECOGNITION PERFORMANCE DEGRADES INEVITABLY IN THE PRESENCE OF INTERFERENCE AND DISTORTION. THERE ARE TWO BASIC APPROACHES TO MINIMIZING THE DEGRADATION: (1) SEEK NEW ACOUSTIC FEATURES THAT YIELD PERFORMANCE THAT IS LESS SENSITIVE TO SIGNAL CORRUPTION; (2) TRY TO "SEE THROUGH" THE CORRUPTION AND TO THE "TRUE" VALUES OF THE INFORMATION-BEARING FEATURES. ...

This program on high-strength piezocermaic fibers probes a critical gap in the technology of smart materials which interconvert electrical and mechanical energy. Strong piezoceramic fibers that can function as load bearing members in structures and survive the large mechanical strains encountered in highly stressed engineering components are not developed. It is envisioned that piezoelectric fabri ...