5 documents found, page 1 of 1
Management and evaluation of chronic alcoholic patients in general practice/fam...
Figueiredo, Rita; Santiago, Luiz Miguel; Aveiro, Ana; Graça, Beatriz; Valentim, BrunoIntrodução: A medicina geral e familiar (MGF) tem um papel preponderante na deteção precoce de problemas ligados ao álcool (PLA) e consequente intervenção. No entanto, muitos casos não são diagnosticados e não recebem o devido aconselhamento ou tratamento. Objetivos: Perceber como é feita a avaliação e abordagem de PLA pelos médicos de família (MF) de uma Unidade de Saúde Familiar (USF) e compreender o impacto ...
An analysis of the emergence of multimodal metaphors in the political-religious...
Lisboa, André; Graça, Beatriz; Avelar, MaíraIn this research, we aim to analyse the occurrences of multimodal metaphors in political-religious interactions, considering the verbal variable and, specially, the gestural variable. From excerpts extracted of Evangelical Bench” (Frente Parlamentar Evangélica) members, we identified and categorised gesture to investigate the occurrences of gestural metaphors. The central discussion of this research involves th...
On the friction behaviour of polymer greases
Gonçalves, David; Graça, Beatriz; Campos, Armando José Vilaça; Seabra, J.Non-additized batches of lubricating greases were tribologically characterized through traction coeffi-cient and Stribeck curves at different operating conditions on a ball-on-disc test rig, ensuring that the contact was fully flooded. The tests were performed at constant load, but different operating tempera-tures while varying the slide-to roll ratio (SRR) or the rolling entrainment speed. The results were corr...
Film thickness and friction behaviour of thermally aged lubricating greases
Gonçalves, David; Graça, Beatriz; Campos, Armando José Vilaça; Seabra, J.Non-additized batches of lubricating greases were subjected to an artificial thermal aging procedure. The fresh and aged samples were then tribologically characterized through film thickness measurements and Stribeck curves, over a large range of entrainment speeds on a ball-on-disc test rig at different operating temperatures, ensuring fully flooded conditions. The results were analysed at the light of the physic...
Friction torque in thrust ball bearings lubricated with polymer greases of diff...
Gonçalves, David; Pinho, Samuel; Graça, Beatriz; Campos, Armando José Vilaça; Seabra, Jorge H.O.In this work a series of experimental tests were performed in thrust ball bearings lubricated with polymer greases. The tested greases were formulated with the same base oil but different thickener content. A multi-purpose lithium thickened grease was also tested as reference. The friction torque was measured at constant temperature and load, while varying the rotational speed. The coefficients of friction under...