Magnetic-field gradients

Figure 4.1.1 CPMG pulse sequence designed for three-dimensional imaging. TE is echo time, and Gi, G2 and G3 represent the gradient magnetic fields along the directions of zlt z2 and z3, respectively.

The use of a high-gradient magnetic field was proposed to separate the paramagnetic and diamagnetic species by a mechanism of focusing FFF [9]. Various aspects of focusing FFF carried out under these conditions were discussed, but no experimental results appeared until now. 

S. N. Semenov and A. A. Kuznetsov, Flow fractionation in a transverse high-gradient magnetic field, Russ. J. Phys. Chem. 60 424-428 (1986) (translated from Zh. Fill Khim.). 

Release the particles by adding ethanol, separate from the mixture by exposure to a gradient magnetic field and wash two times with ethanol and once with water. 

Municipal and Industrial wastewater High gradient magnetic fields 56-59, 82 ... 

Experimental and Theoretical Explorations of Weak- and Strong-gradient Magnetic Fields in Chemical Multiphase Processes... 

Figure 11.12 Spin-density profiles for positive- and negative-gradient magnetic field at (a) bed exit z= L, (b) along wall at r = Djl, Re = 2110, Hor = A z/L (Oe) positive gradient and Fio = A 1-zjL) (Oe) negative gradient, legend gives magnetic field value at bed exit (>0) or bed entrance (<0).

Figure 11.13 Axial velocity component radial profiles and positive/negative-gradient magnetic field at bed exit z = L and various ferrofluid Reynolds numbers (a) Re = 2110 (b) Re = 21.1, (c) Re = 0.21. Box legend syntax ...

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