Supercritical Fluids at PNNL
   High pressure NMR and super critical fluids.
   http://www.pnl.gov/supercriticalfluid/basicresearch.stm#high

Torus Basics
   Toroidal NMR detection coils and High Pressure NMR.
   http://www.thch.uni-bonn.de/pc/torus/torus_basics.html