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PROPOSED IS A NEW INSTRUMENT BASED ON THE REFRACTION MODE OFSEISMIC SURVEYING TO MEASURE THE DEVELOPMENT OF SCOUR ADJACENT TO A BRIDGE PIER OR ABUTMENT. THE INSTRUMENT USES A REPEATABLE ACOUSTIC SOURCE PLACED NEXTTO THE CONCRETE STRUCTURE AND AN ARRAY OF HYDROPHONES IN A PVC PIPE THAT IS BURIED VERTICALLY IN THE RIVER BED NEXT TO THE PIER. THE ACOUSTIC SOURCE EMITS REPEATED SIGNALS THAT ARE REFRAC ...

ELECTRICALLY CONDUCTING ORGANIC POLYMERS ARE A NEW CLASS OF LOW-COST LIGHTWEIGHT CONDUCTING MATERIALS THAT HAVE A LARGE NUMBER OF IMPORTANT PRACTICAL APPLICATIONS. THESE POLYMERS ARE OF PARTICULAR INTEREST AS A MEANS OF FABRICATING ENZYME-BASED ELECTROCHEMICAL BIOSENSORS THAT HAVE UNIQUE CAPABILITIES. HOWEVER, SEVERAL ASPECTS OF THE ELECTROCHEMICAL METHODS PRESENTLY USED FOR THE FORMATION OF THESE ...

MANY U.S. MUNICIPALITIES AND COMMUNITIES ARE INTEGRATING RECYCLING PROGRAMS IN THE MANAGEMENT OF THEIR SOLID WASTE IN ORDER TO MINIMIZE LANDFILL REQUIREMENTS. INCREASINGLY, THESE RECYCLING PROGRAMS INCLUDE MATERIALS RECOVERY FACILITIES (MRF) WHERE THE MUNICIPAL SOLID WASTE (MSW), CURBSIDE COLLECTED RECYCLABLE MATERIALS, AND OTHER BAGGED WASTES ARE TRANSPORTED TO A CENTRAL LOCATION FOR THE RETRIEVA ...

FUSION SYSTEMS HAS DEVELOPED A MERCURY-FREE, HIGH COLOR RENDERING, EFFICIENT LAMP USING PROPRIETARY BUT BENIGN LAMP FILLS. THEY PROPOSE TO INVESTIGATE VARIATIONS OF THE LAMP SYSTEM PARAMETERS WITH THE DUAL GIALS OF FURTHER INCREASING SYSTEM EFFICIENCY BY 1.5 X AND TO IMPROVE LAMP STARTING DOWN TO MINUS 40C. BOTH FACTORS ARE CRITICAL TOWARD ACHIEVING COMMERCIAL SUCCESS. THE NEW LAMP IS A MICROWAVE ...