This paper presents a 3D boundary element model (BEM), formulated in the frequency domain, to simulate heat diffusion by conduction in the vicinity of 3D cracks. The model intends to contribute to the interpretation of infrared thermography (IRT) data results and to explore the features of this non-destructive testing technique (NDT) when it is used to detect and characterize defects. The defect is assumed to b...
A actividade enzimática de polifenoloxidases foi avaliada em folhas e na zona apical, média e basal de ramos de duas cultivares de oliveira (Olea europaea L.), comuns no Alentejo ( Galega vulgar e Cobrançosa ), mostrando que a actividade enzimática nas folhas foi muito superior à encontrada em tecidos de ramos do ano. Maior actividade enzimática foi também detectada na variedade Cobrançosa versus Galega vu...
The immunohistochemistry standardization for bovine viral diarrhea virus (BVDV) diagnostic was described. The formalin-fixed tissue samples from a heifer with mucosal disease were used as positive control. The validation of the first phase results was performed using samples from an aborted fetus and a calf infected with reference strains of BVDV. The best results were seen using monoclonal antibodies and a com...
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