Encontrados 61 documentos, a visualizar página 1 de 7
Parametric Models for Characterization, Quantification and Defection of Epilept...
Francisco António Cardoso Vaz; José Carlos PríncipeThis work presents an automated method based on the autoregressive (AR) modelling of the electroencephalogram (EEG). The EEG signal is divided in short segments (typically 2 seconds) and AR models subsequently evaluated. The model parameters quantify each segment and constitute features for classification using pattern recognition techniques. The method was validated with a data set including three types of epi...
Prototype of a side-row Continuous Canopy Shaking Harvester for Intensive Olive...
Peça, José; Dias, António; Cardoso, Vitor; Souza, Domingos; Falcão, José; Pinheiro, AnacletoOlive producing countries worldwide invested largely in high density groves varying from 200 to 550 trees per hectare for which no efficient totally mechanized harvesting methodology and technology is available. Trunk shaking is not an adequate option due to lack of space and intense strain in labour and machinery. Continuous canopy shaking is the obvious approach, not only increasing working capacity but also ...
Can power laws help us understand gene and proteome information?
Costa, António Cardoso; Machado, J. A. Tenreiro; Quelhas, DulceProteins are biochemical entities consisting of one or more blocks typically folded in a 3D pattern. Each block (a polypeptide) is a single linear sequence of amino acids that are biochemically bonded together. The amino acid sequence in a protein is defined by the sequence of a gene or several genes encoded in the DNA-based genetic code. This genetic code typically uses twenty amino acids, but in certain organ...
pH influence on oxygen mass transfer coefficient in a bubble column. Individual...
Ferreira, António; Cardoso, P.; Teixeira, J. A.; Rocha, F.Experiments were performed in a laboratory scale bubble column (10 L), to investigate the pH influence on oxygen mass transfer coefficient, in order to achieve a better control of biological processes. The liquid-side mass transfer coefficient, kL, and the specific interfacial area, a, were studied individually. The specific interfacial area was obtained using the new automatic image analysis technique develope...
Processing sports acquired information from a tracking system
Rodrigues, J. M. F.; Belguinha, António; Cardoso, PedroIn order to improve the players’ and teams' performances in sports, the technical staffs are now using an ever increasing number of technologies. In this paper we present a study based on a video tracking of players and ball, that can return heat, passes and ball losses maps, which can be a good resource to measure a player/team performance and a base to their improvement.
Multi-dimensional scaling applied to histogram-based DNA analysis
Costa, António Cardoso; Machado, J. A. Tenreiro; Quelhas, DulceThis paper aims to study the relationships between chromosomal DNA sequences of twenty species. We propose a methodology combining DNA-based word frequency histograms, correlation methods, and an MDS technique to visualize structural information underlying chromosomes (CRs) and species. Four statistical measures are tested (Minkowski, Cosine, Pearson product-moment, and Kendall τ rank correlations) to analyze t...
A multidimensional scaling analysis of musical sounds based on pseudo phase plane
Lima, Miguel; Costa, António Cardoso; Machado, J. A. TenreiroThis paper studies musical opus from the point of view of three mathematical tools: entropy, pseudo phase plane (PPP), and multidimensional scaling (MDS). The experiments analyze ten sets of different musical styles. First, for each musical composition, the PPP is produced using the time series lags captured by the average mutual information. Second, to unravel hidden relationships between the musical styles th...
Caracterização de betões leves vibrocomprimidos com agregados de argila expandida
Melo, António Cardoso Fontes deTese de mestrado. Construção de edifícios. Faculdade de Engenharia. Universidade do Porto. 2000
Betões leves vibrocomprimidos com agregados de argila expandida : Estudo de com...
Melo, António Cardoso Fontes deDissertação apresentada para obtenção do grau de Mestre, na Faculdade de Engenharia da Universidade do Porto, sob a orientação do Profs.Doutores Hipólito de Sousa e Ana Maria Sarmento
Estudo comportamental de edifícios com base na análise de dados históricos : ca...
Guimarães, José António CardosoTese de mestrado integrado. Engenharia Civil (Especialização em Construções). Faculdade de Engenharia. Universidade do Porto. 2010
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||