Peripheral zone model

FIGURE 6 Planning and execution of MRI-guided prostate brachytherapy. Left three-dimensional model of the prostate, tumor, rectum, bladder, and seminal vesicles. The pelvic anatomy was segmented based on MR images. Middle the planning of the procedure. The peripheral zone and central zone of the prostate are depicted on a cross-sectional MRI slice acquired with an endorectal coil. The dashed lines represent individual needle trajectories. Right display of dose distribution on two-dimensional MRI of the prostate. 

A model of an ore geochemical system has been developed (Goldberg et al, 2003), which can be applied to ore entities of various categories ore bodies, deposits and ore regions. The nuclear section of the system contains a zone of accumulation of the principal ore and associated elements. The peripheral areas contain zones of depletion of ore-forming elements. Anomalies of siderophile elements (Ni, Co, Mn, Ti, V, Cr), which are the subject of this paper, are located on the periphery of the nuclear sections of these systems. 

The mathematical description of a fluid kinetics of the scrubber, allowing defining profiles an axial and peripheral component of speed of a gas stream Is offered. The model reflects essential features of the twirled motion of phases in characteristic hydrodynamic zones of the apparatus. 

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