Applications research magnet systems

Once it was realized and accepted that expert systems worked best on problems limited to a specific domain, then a considerable number of applications of such systems in analytical science rapidly developed. This is particularly the case in automating the interpretation of spectral data. The apparently obvious correlation or correspondence between a spectral pattern and its parent molecular structure has proved to be an attractive and fruitful field for researchers developing expert system technologies and applications. Initially mass spectrometry, and later infrared (IR), EI, and nuclear magnetic... 

NASA NCREN NCSA NES NIH NIST NMR NSEC NSF National Aeronantics and Space Administration North Carolina Research and Edncation Network National Center for Snpercompnting Applications Network File System National Institntes of Health National Institnte of Standards and Technology nnclear magnetic resonance National Science and Engineering Center National Science Fonndation... 

NMR instrumentation consists of three chief components a magnet, a spectrometer console, and a probe. While in the past much solid state NMR research was conducted on home-built equipment, the current trend is toward the acquisition of commercial systems. The magnets used for solid state NMR applications generally are superconducting solenoids with a cylindrical bore of 89-mm diameter. The most common field strengths available, 4.7, 7.0, 9.4, and 11.7 Tesla, correspond to proton resonance frequencies near 200, 300, 400, and 500 MHz, respectively. 

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