Encontrados 6 documentos, a visualizar página 1 de 1
Efeito de inseticidas sobre o tripes Frankliniella schultzei (Trybom) em mangue...
MESQUITA, A. L. M.; GUIMARÃES, J. A.; MARTINS, A. G.; MONTEIRO, R. C.2008
Surface modification of stainless steel powders for microfabrication
Vieira, M. T.; Martins, A. G.; Barreiros, F. M.; Matos, M.; Castanho, J. M.The current trend towards miniaturization has led to the increasing use of stainless steel powders as raw material in the manufacture small parts with complex shapes, e.g. medical devices. This paper focuses on the role of coated and uncoated low carbon stainless steel powders, having d50 = 7.3 [mu]m, normal particle size distribution and a shape factor of 1 on additive processes used in micromanufacturing, e.g...
Designing the input vector to ANN-based models for short-term load forecast in ...
Santos, P. J.; Martins, A. G.; Pires, A. J.The present trend to electricity market restructuring increases the need for reliable short-term load forecast (STLF) algorithms, in order to assist electric utilities in activities such as planning, operating and controlling electric energy systems. Methodologies such as artificial neural networks (ANN) have been widely used in the next hour load forecast horizon with satisfactory results. However, this type o...
Short-term load forecast using trend information and process reconstruction
Santos, P. J.; Martins, A. G.; Pires, A. J.; Martins, J. F.; Mendes, R. V.The algorithms for short-term load forecast (STLF), especially within the next-hour horizon, belong to a group of methodologies that aim to render more effective the actions of planning, operating and controlling electric energy systems (EES). In the context of the progressive liberalization of the electricity sector, unbundling of the previous monopolistic structure emphasizes the need for load forecast, parti...
Application of aspiration cytology in the diagnosis of tumor lesions in children.
Almeida, M M; Serviço de Patologia Morfológica, Instituto Português de Oncologia de Francisco Gentil, Lisboa.; Mendonça, M E; Sousinha, M; Martins, A GFine needle aspiration cytology (FNAC) became increasingly popular for evaluating of both superficial and deep seated lesions, but its use in children has been limited. We report our recent experience with FNAC in the pediatric group. The study population included 34 males and 12 females and the age ranged between 11 months to 16 years. The aspirated sites were: testis (n = 14), lymph node (n = 12), bone (n = 9...
Euthanasia and the physician.
Martins, A G; Serviço de Cirurgia Pediátrica, Hospital Dona Estefânia, Lisboa.The problem of Euthanasia is approached in the light of the Hippocratic principles, which have not changed with time but have only been adapted to new scientific and social developments. The definition of what constitutes Euthanasia is clarified and the need to avoid that semantic mutations may manipulate ideas is stressed, so that what is certainly wrong does not seem to appear as right. The uniqueness and ind...
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