2 documents found, page 1 of 1
Improving the design of nozzles used in zamak high-pressure die-casting process
Sousa, V.F.C.; Silva, Francisco J. G.; Ferreira, Luís Pinto; Campilho, R.D.S.G.; Pereira, Maria Teresa; Braga, E.The injection of light alloys is an activity that requires a high effort on the part of Engineering to maintain its competitiveness. Due to the temperatures used, the wear of the components connected to this manufacturing process is quite intense, requiring a constant updating effort. This work was developed with a view to solving problems related to the excessive wear of injection nozzles used in the die casti...
Do ticks and Borrelia burgdorferi s.l. constitute a burden to birds?
Norte, A.; Lobato, D.; Braga, E.; Antonini, Y.; Lacorte, G.; Gonçalves, M.; Lopes de Carvalho, I.; Gern, L.; Núncio, M.; Ramos, J.Ticks consume resources from their hosts shaping their life-history traits and are vectors of many zoonotic pathogens. Several studies have focused on the health effects of blood sucking ectoparasites on avian hosts, but there is limited information on the effects of ticks on adult and sub-adult birds, which may actively avoid ticks and are likely to present low infestation intensities. We evaluated the effects...