The widespread use of heat treatable7075 aluminum alloy in the aerospace industry requires a high machinability performance. main objective this study is to examine and surface quality conditions AA7075 material with different temper conditions. For purpose, various treatments are implemented evaluate impact microstructural properties on tool wear drilled holes. drilling operations have been do...

Purpose: MRI is very sensitive to motion, particularly in 3D imaging where temporally localized motion can propagate across the whole reconstructed volume. In cardiac and abdominal imaging applications, subjects are required to suspend their respiration for a period of 15-25s to minimize ghosting and blurring artifacts. Breathholding poses difficulties in pediatric and elderly subjects and in p...