2 documents found, page 1 of 1
Cyclic plastic behaviour of 7075 aluminium alloy
Nogueira, F. de Moura; Cunha, J.; Mateus, A.; Malça, C.; Costa, J. D; Branco, R.This paper aims at studying the cyclic plastic behaviour of the 7075-T651 aluminium alloy under fully-reversed strain-controlled conditions. Tests are conducted under strain-control mode, at room temperature, in a conventional servo-hydraulic machine, from smooth samples, using the single step method, with strain amplitudes (/2) in the range ±0.5 to ±2.75%. This material has exhibited a mixed behaviour, i.e. ...
Cardosins in postembryonic development of cardoon: towards an elucidation of th...
Pereira, Cláudia Sofia; Costa, Diana Soares da; Pereira, Susana; Nogueira, F. de Moura; Albuquerque, P. M.; Teixeira, J.; Faro, C.; Pissarra, J.Summary. Following on from previous work, the temporal and spatial accumulation of the aspartic proteinases (EC 3.4.23) cardosin A and cardosin B during postembryonic seed development of cardoon (Cynara cardunculus) was studied. mRNA and protein analyses of both cardosins suggested that the proteins accumulate during seed maturation, and that cardosin A is later synthesised de novo at the time of radicle emerge...