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WAVEGUIDES ARE USED TO TRANSMIT LIGHT THROUGH OPTICAL PROCESSORS. COMBINING THE RESOLUTION POTENTIAL OF DEEP-UV PHOTOLITHOGRAPHY AND THE EXTREME SENSITIVITY/HIGH CONTRAST OF CHEMICALLY AMPLIFIED POSITIVE ACTING (CAMP) RESISTS OFFERS A POTENTIALLY SIMPLE METHOD FOR FABRICATING HIGHLY RESOLVED, POLYMERIC WAVEGUIDES STRUCTURES. CAMP RESISTS CAN BE MATED WITH OTHER CLADDING MATERIALS WITH LOWER REFR ...

PIEZORESISTIVE PROPERTIES OF MATERIALS FORM THE BASIS OF MANY TYPES OF SENSORS, INCLUDING STRAIN GAUGES, MICROMACHINED ACCELEROMETERS AND PRESSURE SENSORS, TACTILE SENSORS, AND FLOW SENSORS. AS GREATER DEMANDS ARE PLACED ON DEVICES FROM THE STAND-POINT OF SIZE AND COST PER CONTROLLED POINT, EASIER METHODS OF PROCESSING WHICH CAN PRODUCE SMALLER DEVICES WITH GREATER PERFORMANCE ARE REQUIRED. RESE ...

THREE METHODS ARE PROPOSED FOR MAKING NET SHAPE HIGH TEMPERATURE MANDRELS TO FORM CHEMICALLY VAPOR DEPOSITED NICKEL SHELL TOOLING BASED ON SOLID FREEFORM FABRICATION (SFF) MODELS. THE THREE METHODS ARE DISTINGUISHED BY THE NUMBER OF GENERATIONS OR REPLICATIONS THE NICKEL SHELL WILL BE FROM THE SFF MODEL:3, 2, OR 1. THE 3 AND 2 GENERATION METHODS USE CHEMICALLY BONDED CERAMIC MATERIALS TO FORM THE ...

ENVIRONMENTAL REGULATIONS INCREASINGLY LIMIT EMISSION OF GASEOUS SUBSTANCES FROM INDUSTRIAL PROCESSES NECESSITATING SEPARATION AND RECOVERY OF MANY COMPOUNDS. IT IS INCREASINGLY IMPORTANT TO RECOVER DILUTE GASES IN PROCESS WASTE STREAMS FOR RECYCLE OF VALUABLE CHEMICALS ECONOMICALLY, AND TO LIMIT EMISSIONS. THE RESEARCH IS DEVELOPING TECHNOLOGY FOR SEPARATION, CONCENTRATION, AND REVOVERY OF GASE ...

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THE PROJECT EXPLORES THE FEASIBILITY OF USING BIOLOGICAL MATERIALS, WHICH HAVE NOT BEEN TRADITIONALLY UTILIZED IN EDUCATIONAL SETTINGS, FOR DEVELOPING NEW PROBLEM-BASED LABORATORY EXPERIMENTS IN LIFE SCIENCE CURRICULA. THE RESEARCH EXPLORES THE USE OF PLANT BIOLOGICAL MATERIALS, SUCH AS PLANT MUTANTS WHICH ARE AVAILABLE THROUGH GENETIC STOCK CENTERS AND GERMPLASM COLLECTIONS, TO CONSTRUCT CLASSRO ...

INDIVIDUALS IN MANY OCCUPATIONS AND ENVIRONMENTAL SITUATIONS CAN BE SUBJECTED TO CONDITIONS THAT MAY HAVE ADVERSE EFFECTS ON SUBJECTIVE WELL-BEING, PRODUCTIVITY, AND PERFORMANCE. THESE CONDITIONS INCLUDE TRADITIONAL CONDITIONS SUCH AS JOB STRESS, THERMAL STRESS, DRUGS, AND SLEEP LOSS, AS WELL AS IN THE MORE MODERN SYSTEMS SUCH AS SIMULATORS AND VIRTUAL REALITY SYSTEMS. RESEARCHERS ARE PROVIDING A ...

THE AVAILABILITY OF HYPERTEXT AND MULTIMEDIA TECHNOLOGIES PRESENTS AN OPPORTUNITY TO ASSIMILATE VAST ENGINEERING PROBLEM AND SOLUTION RESOURCES INTO ONE READILY ACCESSIBLE KNOWLEDGE BASE, IN A WAY THAT MAKES THE ENGINEERING PROBLEMS AND SOLUTIONS "COME ALIVE". RESEARCHERS ARE DEVELOPING: (1) A SET OF DATABASES OF APPLIED MECHANICS PROBLEMS, THEIR SOLUTIONS, AND RELATED ATTRIBUTES; (2) A DESIGN FO ...

CURRENT SMOKE DETECTION TECHNOLOGIES SUFFER FROM SIGNIFICANT FALSE ALARM RATES. THESE PROBLEMS ARE CURRENTLY BEING ADDRESSED BY REDUCING THE SENSITIVITY OF EXISTING PARTICULATE DETECTORS. IN THIS WORK, THE FEASIBILITY OF A COMBINED PARTICULATE AND CARBON MONOXIDE DETECTOR WILL BE EVALUATED. THE USE OF MULTIPLE FIRE SIGNATURES HAS THE POTENTIAL FOR REDUCING THE FALSE ALARM PROBLEMS WHILE INCREASING ...

A NEW TYPE OF COMPOSITE COLOR FILTER IS BEING DEVELOPED. THIS COLOR FILTER IS COMPOSED OF A POLYMER (METHYL METHACRYLATE) REINFORCED WITH COLORED OPTICAL GLASS AND HAS THE COMBINED PROPERTIES OF A GLASS SOLUTION AND GELATIN FILTER. GLASS COMPOSITION IS BEING DEVELOPED AND TECHNIQUES FOR PREPARING COMPOSITE COLOR FILTER ESTABLISHED. BASIC PROPERTIES OF GLASS FIBERS OR COMPOSITE FILTERS ARE BEING ...