In the present study, ductile iron camshafts low alloyed with 0.2 and 0.3 wt % vanadium were produced to study microstructural mechanical evaluation of lobes camshaft. For this purpose, in one largest manufacturers camshaft México by phenolic urethane no-bake sand mold casting method. The microstructure was studied three zones located at top, middle, bottom optical microscopy, tests performed o...

Abstract This work focused on producing and characterizing high silicon cast irons (microstructural analysis, tensile properties, damping capacity, elastic properties). Moreover, it also evaluated the influence of RE alloying capacity. The samples present a step-casting geometry to verify cooling rate’s impact their microstructures and, consequently, mechanical properties. Si SGI presented full...

Medulloblastoma (MB) is an embryonal brain tumor of the cerebellum. MB accounts for 46% of all primary intracranial tumors. It is the most common malignant brain tumor in children it represents 15-30% of all pediatric brain tumors, with 85% of MBs being diagnosed in patients younger then 18 years of age. The peak incidence occurs between the ages 3-9 years, with about 35% metastasis disease(Cra...

quite well. In six of the seven false negative US examinations, chest CT identified malignancy based on parenchy-mal opacities, adenopathy or the identification of metastatic disease. Although well conducted, there are several methodological issues that may limit generalisability of the results. First, there was a high incidence of MPE (especially mesothelioma) in this study population. The pro...