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Subcortical hyperintensities (SH) are a commonly observed phenomenon on MRI of the aging brain (Kertesz et al., 1988). Conflicting behavioral, cognitive and pathological associations reported in the literature underline the need to develop an intracranial volumetric analysis technique to elucidate pathophysiological origins of SH in Alzheimer's disease (AD), vascular cognitive impairment (VCI) and...
β-Ti alloys are highly attractive metallic materials for biomedical applications due to their high specific strength, high corrosion resistance and excellent biocompatibility, including low elastic modulus. This work aims to clarify the hardening mechanism of a β-Ti–Nb–Zr–Ta alloy using different characterization techniques. Ingots (50g) of Ti–35Nb–7Zr–5Ta (wt.%) alloy were arc furnace melted in an...
In this paper the space charge distribution profile along the thickness of tree-retardant crosslinked polyethylene (TR-XLPE) cables, commonly used in medium voltage system and degraded under multiple factors as temperature, AC and impulse voltages are presented. A comparison of the space charge distribution along the insulation thickness (radial direction) of samples extracted from 15 kV TR-XLPE cables,...
Experience of polymer insulators used in transmission lines has now existed for almost 50 years and are widely used by many electricity companies around the world. Their superior performance under high pollution levels, as a consequence of their hydrophobic surface property, constitutes one of most important advantages. Lightweight, low maintenance cost and resistance to vandalism are also additional...
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