Encontrados 2 documentos, a visualizar página 1 de 1
Influence of tool shoulder geometry on properties of friction stir welds in thi...
Galvão, I.; Leal, R. M.; Rodrigues, D. M.; Loureiro, A.The aim of this work is to study the influence of the shoulder geometry on friction stir welding of 1 mm-thick copper-DHP plates. The welds were produced using three different shoulder geometries, flat, conical and scrolled, and varying the rotation and traverse speeds of the tool. The flat shoulder tool proved to be inadequate for performing welds, because many defects were produced for all welding conditions....
Severe Megaloblastic Anaemia in an Infant
Rodrigues, V; Dias, A; Brito, MJ; Galvão, I; Cordeiro Ferreira, GVitamin B 12 or cobalamin deficiency, a rare clinical entity in pediatric age, is found most exclusively in breastfed infants, whose mothers are strictly vegetarian non-supplemented or with pernicious anaemia. In this article, the authors describe a 10-month-old infant admitted for vomiting, refusal to eat and prostration. The infant was exclusively breastfed and diffi culties in introduction of new foods were ...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||