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The variation of electrical conductivity of PVC-Graphite thick film resistors, with parameters such as volume fraction and grain size has been studied. The conductivity of PVC-graphite thick film resistors are calculated using Scarisbrick's model of the conductivity of mixtures.
This investigation is undertaken to determine the reliability of PVC-graphite thick film resistors by determining the potential failure mechanism and the mean time — to — failure. Different drift functions are described for PVC-graphite thick film resistors with different PVC-graphite compositions. The values of the functional parameters depend strongly on the storage test temperature. The mean-to-failure...
Vimentin intermediate filaments (IF) are responsible for regulation of cell attachment and subcellular organization. Using anin vitromodel system of human prostate epithelial cells (267B1-XR), we demonstrate that a series of vimentin proteolytic fragments represent some of the differentially expressed proteins in 2D-gel profiles of the apoptotic cells undergoing ionizing radiation-induced cell death...
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