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Performance evaluation of ZigBee protocol for high data rate body sensor networks
Gomes, Diogo; Gonçalves, Carlos; Afonso, José A.Publicado em "Proceedings of the World Congress on Engineering 2013", Vol. 2, ISBN 978-988-19252-8-2 ; This paper presents an experimental performance evaluation of ZigBee networks in the context of data-intensive body sensor networks (BSNs). IEEE 802.15.4/ZigBee devices were mainly developed for use in wireless sensors network (WSN) applications; however, due to characteristics such as low power and small for...
Motores monofásicos série de colector : considerações sobre o funcionamento : d...
Carvalho, Carlos Afonso de Araújo CastroDissertação apresentada para obtenção do grau de Doutor na Faculdade de Engenharia da Universidade do Porto
Metodologia para a monitorização e gestão da pesca de arrasto em Portugal. O e...
Simões, Joana; Pinto, Carlos; Afonso-Dias, ManuelA METHODOLOGY FOR THE MONITORING AND MANAGEMENT OF TRAWL FISHERIES IN PORTUGAL. THE SIG EXAMPLE OF GEOCRUST 1.0. This paper aims to present the Geographical Information System GEOCRUST 1.0, a computer programme developed within the fishery research project DGXIV 99/059, Use of Satellite GPS data to map effort and landings of the Portuguese crustacean fleet (GEOCRUST), in the University of Algarve. This stand-al...
Assessment of a battery charger for electric vehicles with reactive power control
Monteiro, Vítor; Pinto, J. G.; Exposto, Bruno; Gonçalves, Henrique; Ferreira, João C.; Couto, Carlos; Afonso, João L.Batteries of Electric Vehicles (EVs) and Plug-in Hybrid Electric Vehicles (PHEVs) have a large potential not only to provide energy for the locomotion of these vehicles, but also to interact, in dynamic way, with the power grid. Thereby, through the energy stored in the batteries, these vehicles can be used to regulate the active and the reactive power, as local Energy Storage Systems. This way, EVs can contrib...
Comparison of current-source and voltage-source shunt active power filters for ...
Pinto, J. G.; Exposto, Bruno; Monteiro, Vítor; Monteiro, Luís F. C.; Couto, Carlos; Afonso, João L.This paper presents the comparison between two three-phase Shunt Active Power Filters (SAPFs), one with Current-Source Inverter (CSI) and the other with Voltage-Source Inverter (VSI), which are used to compensate current harmonics and to control reactive power. The control algorithm of both SAPFs is based on the Instantaneous Reactive Power Theory (p-q Theory). The comparison here presented fo...
Sistema de controlo, regulação e comando de pisos radiantes hidráulicos
Batista, Gilberto Carlos AfonsoEsta dissertação apresenta uma alternativa de controlo, regulação e comando de pisos radiantes hidráulicos, inovadora, mais flexível e eficiente que garante ótimos níveis de conforto térmico à custa do mínimo de energia. Atualmente, o controlo dos pisos radiantes hidráulicos é feito, na maioria dos sistemas, recorrendo a termostatos que comandam os atuadores do sistema de modo a regular a temperatura do ar do(s...
Disgerminoma bilateral e hiperplasia endometrial cística com piometra em cadela...
Rolim, Veronica Machado; Pinto, Thadeu Mourão; Lopes, Lucila Maria de Almeida; Sonne, Luciana; Oliveira, Eduardo Conceição deBackground: Ovarian tumors are considered rare both in dogs and cats. Germ cell neoplasms correspond to approximately 15% of the cases and can be classified into dysgerminomas, teratomas and teratocarcinomas. Reports of bilateral dysgerminoma in dogs and cats are rare. The aim of this work was to describe a case of bilateral dysgerminoma and cystic endometrial hyperplasia with pyometra in a bitch by presenting ...
Luxação lateral de patela em um Poodle toy = Lateral patellar luxation in Poodl...
Dal Bo, Isis dos Santos; Ferreira, Márcio Poletto; Alievi, Marcelo Meller; Silva, Luciana Machado da; Nóbrega, Fernanda SilveiraBackground: Luxating patella is one of the most frequent conditions of the stifle joint in dogs and it can evolve into a degenerative joint disease. The occurrence of the condition can be medial or lateral, unilateral or bilateral. Its origin can be traumatic or congenital and, additionally, it may undergo genetic and environmental influence. Lateral luxation is more common in large breed dogs, and it can rarel...
Raiva em equino no município de Porto Alegre - RS, Brasil = Equine rabies in th...
Merini, Luciana Paula; Cormelato, Alexandra Tiso; Beck, Carlos Afonso de Castro; Garbade, Petra; Bueno, Flavia Umpierre; Pedroso, Pedro Miguel OcamposBackground: rabies is a fatal zoonosis caused by a highly neurotropic RNA virus which causes neurological signs and that is distributed almost worldwide. Rabies affects domestic and wild animals and this is a disease transmitted by their bites, through which the virus present in the saliva is inoculated. In Brazil, Desmodus rotundus is the main hematophagous bat species that transmits rabies, especially to herb...
Estudo preliminar da ligação hormônio-receptor da insulina à membranas de múscu...
Pöppl, Alan Gomes; Mottin, Tatiane da Silva; Dias, Cinthia Brum; Breitsameter, Irene; Beck, Carlos Afonso de Castro; Lasta, Camila
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