Gating System Optimization for EV31A Magnesium Alloy Engine Body Sand Casting.

The research presented in this paper aimed to change the existing gating system that would enable the engine body casting, from a new EV31A magnesium alloy, of the required quality. For this reason, the casting process simulations used the MAGMASoft software, followed by the experimental validation of the achieved results. The results achieved in the first stage of the cast computer simulation enabled the identification of potential problems and factors that reduce the casting quality.

[Anatomical variations of vermiform appendix].

Vermiform appendix (VA) is characterized by great variability of its location and morphology. Acute inflammatory changes are the most frequent cause of surgical abdominal interventions. Inflammation of atypically located VA may imitate inflammation of other organs, which leads to diagnostic errors.