2 documents found, page 1 of 1
Occupational noise exposure and cardiovascular diseases: A pilot study in a met...
Filipe, J.; Carvalhais, Carlos; Neves, P.; Sena, M.; Baeta, Cristina; Teixeira, J. P.; Pereira, C. C.Exposure to noise is an important risk to human health. Despite that, its control in the occupational environment is only made considering the prevention of hearing loss. Portuguese law for this subject neglect the non-auditory effects, such as sleep disturbances, annoyance and stress, reduction of cognitive performance and cardiovascular diseases.
Development of SLM cellular structures for injection molds manufacturing
Malca, C.; Santos, C.; Sena, M.; Mateus, A.Using selective laser melting (SLM) is possible to manufacture molds with cellular internal structures with different porosity degree. Furthermore, internal geometry design can be improved as a function of the desired structural and thermal stress solicitations. In this work two types of cellular internal structures – hexagonal and cub-octahedral – were developed and manufactured using the SLM process. These to...