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EN
Superconducting magnets in the SIS100 particle accelerator require the supply of liquid helium and electric current. Both are transported with by-pass lines designed at Wrocław University of Technology. Bus-bars used to transfer an electric current between the sections of the accelerator will be encased in a steel shell. Eddy currents are expected to appear in the shell during fast-ramp operation of magnets. Heat generation, which should be limited in any cryogenic system, will appear in the shell. In this work the amount of heat generated is assessed depending on the geometry of an assembly of the bus-bars and the shell. Numerical and analytical calculations are described. It was found that heat generation in the shell is relatively small when compared to other sources present in the accelerator and its value strongly depends on the geometry of the shell. The distribution of eddy currents and generated heat for different geometrical options are presented. Based on the results of the calculations the optimal design is proposed.
EN
Liver fibrosis plays a pivotal role in liver function impairment. Hepatic fibrosis is a complex process that involves changes in the amounts of extracellular matrix components, activation of cells capable of producing matrix materials, cytokin release, and tissue remodelling. Chronic disturbed lymph flow from the liver induced fibrosis in this organ has been described. Little is know about the alteration of metabolic pathways of the liver tissue during disturbed lymph flow. Activities of liver enzymes, aldolase and glutamate dehydrogenase were studied in serum and in the liver during disturbed lymph flow from the liver in Wistar rats.
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