Encontrados 31 documentos, a visualizar página 1 de 4
Experimental performance comparison of indoor positioning algorithms based on r...
Silva, Hélder D.; Afonso, José A.; Rocha, Luís A.Publicado em "Proceedings of the World Congress on Engineering 2014, vol. 1. ISBN 978-988-19252-7-5" ; The work presented here compares the performance of indoor positioning systems suitable for low power wireless sensor networks. Map matching, approximate positioning (weighted centroid) and exact positioning algorithms (least squares) were tested and compared in a small predefined indoor environment. We found...
A telerehabilitation system based on wireless motion capture sensors
Macedo, Pedro; Afonso, José A.; Rocha, Luís A.; Simões, RicardoThe constant growth of the elderly population in the world creates new challenges and opportunities in health care systems. New technological solutions have to be found in order to meet the needs and demands of our aging society. The welfare and quality of life of the elderly population must be a priority. Continuous physical activity will play an important role, due to the increase of the retirement age. Howev...
HIV/AIDS Prevention: Intervention Project Of The Higher School Of Nursing. Univ...
Frias, Ana; Rocha, Luis; Sim-Sim, Margarida; Caldeira, Ermelinda; Casas Novas, VitóriaIntroduction: With an estimate of 1400 new cases of HIV/AIDS infection in Portugal every year, recent UNAIDS' reports (2010) reveal that there are around 42000 people infected with HIV/AIDS in our country. These are indeed disturbing indicators of the Portuguese epidemic, which place Portugal, within the context of West Europe, in the group of countries where the HIV/AIDS incidence rate is higher. For this reas...
Evaluation of linear classifiers on articles containing pharmacokinetic evidenc...
Kolchinsky, A.; Lourenço, Anália; Li, L.; Rocha, Luís M.Background. Drug-drug interaction (DDI) is a major cause of morbidity and mortality. DDI research includes the study of different aspects of drug interactions, from in vitro pharmacology, which deals with drug interaction mechanisms, to pharmaco-epidemiology, which investigates the effects of DDI on drug efficacy and adverse drug reactions. Biomedical literature mining can aid both kinds of approaches by extrac...
Conceptualizing a credits trading approach towards corporate social responsibil...
Hede, Shantesh; Ferreira, Paula Varandas; Nunes, Manuel L.; Rocha, Luís A.Life Cycles of both products and services significantly consume renewable and non-renewable resources across a worldwide scale. Thus, eliciting an enormous environmental impact, that is known to disproportionately instigate crises into the socio-economic and political domains of our civilization. Therefore, Creation of Shared Value and Corporate Social Responsibility (CSR) have been considered by Policy makers,...
Optical clock recovery for high speed networks
Pedro Miguel Marques Tavares; José Rodrigues Ferreira da Rocha; Luis Filipe Botelho RibeiroWith the increasing traffic and consequent demand dor higher bit-rates, telecommunications networks based in optical fibre, embed new systems that operate excluvely in the optical domain, avoiding the conversion to electrical domain. (...)Keywords: satellite links; mobile communication networks; signalingM.S., 1999more info. - http://opac.ua.pt/F/?func=find-b&find_code=SYS&REQUEST=000123552 ; ...
Reciprocal dry sliding wear behaviour of B4Cp reinforced aluminium alloy matrix...
Toptan, Fatih; Kerti, Isil; Rocha, Luís A.Manuscript Draft ; In the present work, AlSi9Cu3Mg alloy matrix composites reinforced with 15 and 19% (vol.) B4Cp were produced by squeeze casting route at 850 °C under low vacuum. Titanium-containing flux (K2TiF6) was used to promote the wetting between B4C and liquid aluminium metal. It was found, from the microstructural observations, that the wetting improved by the formation of a thin Ti-rich reaction lay...
A linear classifier based on entity recognition tools and a statistical approac...
Lourenço, Anália; Conover, M.; Wong, A.; Nematzadeh, A.; Pan, F.; Shatkay, Hagit; Rocha, Luís M.Background We participated, as Team 81, in the Article Classification and the Interaction Method subtasks (ACT and IMT, respectively) of the Protein-Protein Interaction task of the BioCreative III Challenge. For the ACT, we pursued an extensive testing of available Named Entity Recognition and dictionary tools, and used the most promising ones to extend our Variable Trigonometric Threshold linear classifier. O...
IT-REHAB : Integral Telerehabilitation System
Fernández-López, Helena; González-Jiménez, Daniel; González-Castaño, Francisco J.; Rocha, Luís A.; Afonso, José A.The main functionalities of the physical rehabilitation module of IT-REHAB are briefly described in this paper. IT-REHAB is a telerehabilitation system under development for patients with physical or cognitive rehabilitation needs. It supports wireless biomechanical and physiological data collection and includes advanced functionalities based on a custom-designed Medium Access (MAC) protocol for improved bandwi...
Logística flexível baseada em AGVs
Rocha, Luís Augusto Sousa da RochaTese de mestrado integrado. Engenharia Electrotécnica e de Computadores (Major automação). Faculdade de Engenharia. Universidade do Porto. 2010
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