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Creep behavior of concrete elements strengthened with NSM CFRP laminate strips ...

The present work intends to contribute for the knowledge on the long-term deformational performance of concrete structures strengthened with the near-surface mounted (NSM) technique. For that purpose a wide experimental program has been initiated using beam pullout and slab specimens submitted to sustained loads under the following environmental conditions: (i) 20ºC temperature and 55% relative humidity; (ii) i...

The impact of the Sentinel Node concept on the overall survival, disease-free s...

Introduction and aims: The Sentinel Node (SN) concept emerged as a way to improve Breast Cancer (BC) staging and to reduce the morbidity of the Axillary Dissection (AD). But the influence of the SN concept on long term BC outcomes is not well defined. The aim of this work is to assess the impact of the SN concept on the overall and disease-free survival and on the axillary recurrence, in a prospectively control...

Removal of copper (II), chloride and methylene blue using eggshell residues as ...

Métodos numéricos para a simulação de escoamentos atmosféricos sobre topografia...

Dissertação apresentada para obtenção do grau de Doutor em Engenharia Mecânica, na Faculdade de Engenharia da Universidade do Porto, Departamento de Engenharia Mecânica, sob a orientação dos Prof. Doutores António Restivo e José Laginha Palma

Climate Change in the Mediterranean over the Last Five Hundred Years

Global Warming (GW) is expected to affect the Mediterranean area with three major challenges, i.e. increase in temperature, decrease in precipitation and sea level rise that will likely submerge the coastal areas, including Venice. Aim of this Chapter is to discuss the expected changes under the light of long-term observations. Documentary proxies and instrumental readings in Portugal, Spain, France and Italy h...

Development of a meso-microscale coupling procedure for site assessment in comp...

A procedure for coupling mesoscale and CFD codes is presented, enabling the inclusion of realistic stratification flow regimes and boundary conditions in CFD simulations of relevance to site and resource assessment studies in complex terrain. Two distinct techniques are derived: (i) in the first one, boundary conditions are extracted from mesoscale results to produce time-varying CFD solutions; (ii) in the second ...

Materialismo histórico e definição de psíquico

No Brasil, autores de referência no campo da Saúde Mental e trabalho vêm trabalhando no sentido de demarcar o objeto da Psicologia com base no materialismo histórico, em função de uma série de insuficiências teóricas detectadas na ciência psicológica. Este artigo analisa as fontes teóricas da definição de psíquico utilizada por Codo e colaboradores baseados no materialismo histórico em seus estudos sobre o sofr...

Frequency domain concurrent channel equalization for multicarrier systems

Receivers for wireless Orthogonal Frequency Division Multiplexing (OFDM) systems usually perform the channel estimation based on pilot carriers in known positions of the channel spectrum. Interpolation between pilot carriers is applied to determine the channel transfer function in all carrier frequencies. Channel variations along time are compensated by means of interpolation between successive channel estimate...

Concurrent blind channel equalization with phase transmittance rbf neural networks

This paper presents a new complex valued radial basis function (RBF) neural network (NN) with phase transmittance between the input nodes and output, which makes it suitable for channel equalization on quadrature digital modulation systems. The new Phase Transmittance RBFNN (PTRBFNN) differs from the classical complex valued RBFNN in that it does not strictly rely on the Euclidean distance between the input vec...

Cations extraction of sandy-clay soils from cavado valley, portugal, using sodi...

Cases of contamination by metals in the water wells of the Cavado Valley in north-west Portugal can be attributed to the heavy leaching of clay soils due to an excess of nitrogen resulting from the intensive use of fertilisers in agricultural areas. This work focuses on the natural weathering characteristics of soils, particularly the clay material, through the study of samples collected near the River Cavado. ...