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IT IS A RECOGNIZED PROBLEM THAT CURRENT COMPUTER AIDED DESIGN (CAD) AND COMPUTER AIDED ENGINEERING (CAE) INTERFACES(1) LIMIT PRODUCTIVITY OF HUMAN DRAFTSPERSONS, (2) DENY CONCEPT SUPPORT TO PRODUCT DEFINERS, AND (3) INHIBIT USE OF THESE SYSTEMS FOR DELIVERY OF KNOWLEDGE BASED CONCURRENT ENGINEERING SUPPORT. THESE PROBLEMS LIMIT INITIATIVES TO BOTH PRODUCE BETTER FIRST DESIGNS AND TO REDUCE THE PRO ...

RESEARCHERS ARE DEVELOPING AND DEMONSTRATING ADAPTABLE VIBRATION ANALYSIS SENSORS WHICH USE SPECIALIZED WEIGHTED-SENSITIVITY OPTICAL FIBER WAVEGUIDE STRUCTURES. SEVERAL METHODS TO CREATE THE NECESSARY SENSITIVITY VARIATIONS ALONG THE LENGTH OF THE WAVEGUIDE ARE SUGGESTED. EXTENSIONS OF THIS WORK TO FURTHER PERMIT THE REAL-TIME MODIFICATION OF SUCH SPATIAL FIBER SENSITIVITY PROFILES, AND HENCE THE ...

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RECENT DEVELOPMENTS IN PULSED POWER TECHNOLOGIES FOR GENERATING TERAWATT LEVEL POWERS HAVE MADE ELECTROCRUSHING AND THE ELECTROHYDRAULIC (EH) EFFECT MORE PRACTICAL FOR COMMERCIAL APPLICATIONS SUCH AS DISINTEGRATION OF ROCKS, ORE COMMINUTION, MINING AND SPARK DRILLING. DATA OBTAINED AT TETRA CORPORATION ON EH COAL PULVERIZATION AND OTHER DATA ON ORE SEPARATION THROUGH ELECTROCRUSHING HAS DEMONSTRAT ...

INTENSE X-RAY SOURCES HAVE BEEN USED IN GEOPHYSICAL RESEARCH PODS TO DETERMINE STRATA FORMATION DENSITY, LITHOLOGY, AND POROSITY. THE SCATTERING OF -RAYS FROM (137)CS OR (60)CO SOURCES WITH DECAY ACTIVITIES OF UP TO SEVERAL CI HAVE BEEN USED EXTENSIVELY IN BOREHOLE LOGGING. A NON-RADIOACTIVE PHOTON SOURCE IS HIGHLY DESIRABLE SINCE IT REDUCES THE RADIOLOGICAL HANDLING RISK AND THE RISK OF DOWN HOLE ...

THE COMBINATION OF GAS CHROMATOGRAPHY WITH MASS SPECTROMETRY(GC/MS) PROVIDES THE BEST GENERAL PURPOSE ANALYTICAL INSTRUMENT FOR SENSITIVE CHARACTERIZATION OF COMPLEX MIXTURES. IT IS USED IN THE FIELDS OF CHEMISTRY, BIOLOGY, GEOCHEMISTRY, ENVIRONMENTAL SCIENCE AND FORENSICS. IN MOST CASES, THE GAS CHROMATOGRAPH SEPARATES THE STARTING MIXTURE INTO ITS CONSTITUENT COMPOUNDS PRIOR TO ANALYSIS BY THE M ...

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ION BEAM FIGURING TECHNIQUES WILL BE APPLIED TO FIGURE ASPHERE OPTICAL ELEMENTS. A MIRROR WILL BE ASPHERIZED TO REMOVE THE R(0)6 ZERNIKE CONTRIBUTION TO CORRECT FOR THIRD-ORDER AND FIFTH-ORDER SPHERICAL ABBERRATION AND DEFOCUS. IN ADDITION, A PHASE CORRECTION PLATE WITH THE SAME OPTICAL CORRECTION WILL BE INVESTIGATED FOR FABRICATION. SIMULATED ION BEAM FIGURING OF MORE COMPLEX ELEMENTS WILL BE IN ...

A NEURAL NETWORK ARCHITECTURE CALLED THE PARAMETRIC AVALANCHE SCHOLASTIC FILTER, WAS DEVELOPED TO SOLVE DIFFICULT PROBLEMS DEALING WITH NONLINEAR DYNAMICAL SYSTEMS. RESEARCHERS ARE APPLYING THIS NETWORK ARCHITECTURE TO AUTOMATIC RECOGNITION OF SPEECH. ADDITIONALLY, RESEARCH IN THE FIELD OF ACOUSTIC EMISSION IN VARIOUS STRUCTURES, PARTICULARLY AS APPLIED TO FATIGUE MONITORING IS BEING CONDUCTED. ...

IMPROVED RELIABLE ACCELEROMETERS SUITABLE FOR WIDE DEPLOYMENT IN SEISMIC ARRAYS ARE NEEDED FOR EARTHQUAKE PREDICTION STUDIES. IN RESPONSE TO THIS NEED OPTICAL TECHNOLOGIES, INC. (OPTECH) IS PROPOSING A FIBER-OPTIC ACCELEROMETER SYSTEM THAT PROVIDES THE DESIRED PERFORMANCE IMPROVEMENTS OF BROAD-BAND, WIDE DYNAMIC RANGE, AND LOW POWER CONSUMPTION, AS WELL AS OTHER SIGNIFICANT BENEFITS ANDFEATURES: B ...