Encontrados 22 documentos, a visualizar página 1 de 3
Estudo das propriedades físicas de algumas rochas da Península de Hurd (Ilha Li...
Amaral, Paulo Maciel; Correia, António; Vieira, Gonçalo; Ramos, M.; Trindade, A.; Lopes, José CarrilhoEstudo das propriedades físicas de algumas rochas da Península de Hurd (Ilha Livingston, Antárctida Marítima) Physical properties of some rocks from Hurd Peninsula (Livingston Island, Maritime Antarctica) P. M. Amaral1 *, A. Correia1, G. Vieira2, M. Ramos3, A. Trindade2, J. Carrilho4 1 Universidade de Évora, Departamento de Física, Centro de Geofísica de Évora, Évora, Portugal. 2 Universidade de Lisboa, Cen...
New method for the measurement of fibres orientation on the paper faces applied...
Pereira, M.J.T.; Costa, A.P.; Trindade, A.C.; Fiadeiro, P. T.; Silvy, J.; Tosio, J.M.SerraFor a given change in the humidity of a paper the hygro-instability of the sheet depends of two main factors: the sheet structural parameters which reflects its structure: the sheet porosity, the fibres orientation distribution mainly in the sheet plane and the variations of these parameters across the paper sheet thickness. the water reactivity of the components of the paper sheet which depends mainly of t...
Diferentes vias de administração da solução de fosfato monobásico e dibásico de...
Trindade,A.B.; Brun,M.V.; Pöhl,V.H.; Basso,P.C.; Bortolini,C.E.; Bracellos,L.J.G.Foram comparadas duas vias de administração, oral e retal, com a solução de fosfato monobásico e dibásico de sódio (NaP), juntamente com bisacodil via oral, no preparo do cólon para colonoscopia rígida em cães, para avaliar parâmetros clínicos, qualidade do preparo e variações dos eletrólitos fósforo, cálcio, potássio (K+) sódio (Na+) e magnésio (Mg+), além da creatinina, albumina e hemograma. Todos os eletróli...
Membranas de látex natural na herniorrafia diafragmática experimental em cães
Zimmermann,M.; Raiser,A.G.; Braga,F.V.A.; Trindade,A.L.B.; Lopes,S.T.A.Utilizaram-se membranas de látex para o reparo de defeitos diafragmáticos em 12 cães, distribuídos em três grupos: no G1 utilizou-se membrana comercial e no G2, membrana experimental. O G3 foi usado como controle. Foi feito um defeito retangular no músculo diafragma, com 4cm de comprimento por 3cm de largura, que nos grupos G1 e G2 foi substituído pelo implante da membrana de látex correspondente. Os animais fo...
Overexpression of delta-like 4 induces arterialization and attenuates
Trindade, A.; Kumar, S.R.; Scehnet, J.S.; Lopes-da-Costa, L.; Becker, J.D.The importance of Notch signaling pathway in the regulation of vascular development and angiogenesis is suggested by the expression of Notch receptors and ligands in vascular endothelial cells (ECs) and the observed vascular phenotypes in mutants of Notch receptors or ligands, especially Dll4. DLL4 is specifically expressed in arterial ECs during development, and haplo-insufficiency is embryonically lethal in m...
Clear-PEM: A PET imaging system dedicated to breast cancer diagnostics
Abreu, M. C.; Aguiar, D.; Albuquerque, E.; Almeida, F. G.; Almeida, P.; Amaral, P.; Auffray, E.; Bento, P.; Bruyndonckx, P.; Bugalho, R.; Carriço, B.The Clear-PEM scanner for positron emission mammography under development is described. The detector is based on pixelized LYSO crystals optically coupled to avalanche photodiodes and readout by a fast low-noise electronic system. A dedicated digital trigger (TGR) and data acquisition (DAQ) system is used for on-line selection of coincidence events with high efficiency, large bandwidth and small dead-time. A sp...
Staphylococcus epidermidis adhesion on modified urea/urethane elastomers
Teixeira, P.; Trindade, A. C.; Godinho, M. H.; Azeredo, Joana; Oliveira, Rosário; Fonseca, J. G.Block urea/urethane co-polymer films present elastomeric properties with the possible tuning of their surface properties within a wide range and are therefore considered relevant surfaces for possible medical applications. In particular, thin free standing films of urea/urethane elastomers with two soft segments, polypropylene oxide and more hydrophobic polybutadiene, develop multistable states with surface top...
The effect of interparticle cohesive forces on the simulation of fluid flow in ...
Trindade,A. L. G.; Passos,M. L.; Costa Jr,E. F.; Biscaia Jr,E. C.As reflected in the literature, solid-fluid flow characteristics in spouted beds can vary widely when particles are coated by a suspension. This work is aimed at describing the effect of interparticle forces on airflow distribution in conical spouted beds of inert particles coated by Eucalyptus black liquor. The simulator developed earlier is modified to incorporate this effect. Two corrective functions with ad...
Staphylococcus epidermis adhesion on modified urea/urethane elastomers
Teixeira, P.; Trindade, A. C.; Fonseca, J. G.; Azeredo, Joana; Oliveira, Rosário; Godinho, M. H.Block Urea/Urethane copolymer films present elastomeric properties with the possible tuning of their surface properties within a wide range, and are therefore considered relevant surfaces for microbial adhesion studies. In particular, Urea/Urethane elastomers develop multi-stable statesª with surface topography features with remarkable regularity b. Moreover, complex surface structures may be obtained by suitab...
A model for coated surface hardness
Fernandes, J. V.; Trindade, A. C.; Menezes, L. F.; Cavaleiro, A.The authors present a model that predicts the hardness of a film deposited on the surface of a substrate. The model is based on a simple mathematical relationship involving the hardness of the film and the hardness of the substrate, together with the hardness of the composite film/substrate at a given film thickness/penetration depth ratio. The parameters of the present model depend on the mechanical properties...
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