13 documents found, page 1 of 2
Hydrogen refueling stations: a review of the technology involved from key energ...
Pereira, Rafael; Monteiro, Vitor; Afonso, João L.; Teixeira, JoniOver the last few years, hydrogen has emerged as a promising solution for problems related to energy sources and pollution concerns. The integration of hydrogen in the transport sector is one of the possible various applications and involves the implementation of hydrogen refueling stations (HRSs). A key obstacle for HRS deployment, in addition to the need for well-developed technologies, is the economic factor...
Enhancing storage stability of smoke-flavored horse mackerel filets using natur...
Barros, Diana; Nova, Paulo; Cunha, Sara; Monteiro, Vitor; Fernandes, Élia; Pereira-Pinto, Ricardo; Barbosa, Carla; Pintado, Maria; Gomes, AnaThe Atlantic horse mackerel (Trachurus trachurus) is a globally favored fish due to its abundance, nutritional value, and aordability, but it faces quality preservation challenges. To address this, this study aimed to enhance its value by creating low-salt smoked products with natural bioactive compounds from seafood and forest sources. The fish filets were divided into four groups: one as a control, and the ot...
Enhancing storage stability of smoke-flavored horse mackerel filets using natur...
Barros, Diana; Nova, Paulo; Cunha, Sara; Monteiro, Vitor; Fernandes, Élia; Pereira-Pinto, Ricardo; Barbosa, Carla; Pintado, Maria; Gomes, AnaThe Atlantic horse mackerel (Trachurus trachurus) is a globally favored fish due to its abundance, nutritional value, and affordability, but it faces quality preservation challenges. To address this, this study aimed to enhance its value by creating low-salt smoked products with natural bioactive compounds from seafood and forest sources. The fish filets were divided into four groups: one as a control, and the ...
Wireless device with energy management for mlosed-loop deep brain stimulation (...
Matheus Nordi, Tiago; Augusto Ginja, Gabriel; Gounella, Rodrigo; Talanoni Fonoff, Erich; Colombari, Eduardo; Moreira, Melkzedekue M. AlcântaraDeep brain stimulation (DBS) is an effective and safe medical treatment that improves the lives of patients with a wide range of neurological and psychiatric diseases, and has been consolidated as a first-line tool in the last two decades. Closed-loop deep brain stimulation (CLDBS) pushes this tool further by automatically adjusting the stimulation parameters to the brain response in real time. The main contrib...
Enhancing storage stability of smoke-flavoured horse mackerel fillets using nat...
Barros, Diana; Nova, Paulo; Cunha, Sara; Monteiro, Vitor; Fernandes, Élia; Pereira-Pinto, Ricardo; Barbosa, Carla; Gomes, Ana; Vaz-Velho, ManuelaThe Atlantic horse mackerel (Trachurus trachurus) is a globally favored fish due to its abundance, nutritional value, and affordability, but it faces quality preservation challenges. To address this, this study aimed to enhance its value by creating low-salt smoked products with natural bioactive compounds from seafood and forest sources. The fish filets were divided into four groups: one as a control, and the ...
New operation opportunities for the solid-state transformer in smart homes: a c...
Monteiro, Vítor Duarte Fernandes; Monteiro, Vitor; Moreira, Carlos; Afonso, João L.With the expansion of power electronics possibilities for smart homes, new perceptions for power control are emerging, suggesting new possibilities also for smart grids. In this prospect, the solid-state transformer (SST) has a substantial impact to interface smart homes with smart grids, guaranteeing high levels of power quality in both grid (consumed current) and load side (produced voltage). Nevertheless, as...
Experimental evaluation of a control system based on a dual-DSP architecture fo...
Monteiro, Luís; Exposto, Bruno; Pinto, Gabriel; Monteiro, Vitor; Aredes, Maurício; Afonso, João L.An experimental evaluation of a digital control system based on a dual Digital Signal Processor (DSP) architecture is proposed for a three phase Unified Power Quality Conditioner (UPQC). A classical UQPC is constituted by two power conditioners, connected in series and shunted with the power grid, and sharing a common DC-link. In a smart grid scenario of operation, a UPQC will be fundamental for compensating po...
Lactobacillus plantarum isolated from cheese: production and partial characteri...
Nero, Luis Augusto; Fernandes, Paulo; Loureiro, Daniela; Monteiro, Vitor; Ramos, Carla; Todorov, Svetoslav Dimitrov; Guerreiro, Joana SantosLactobacillus plantarum B391, a strain isolated from an artisanal French cheese, is a producer of a bacteriocin, expressing activity against Enterococcus faecalis NCTC 775, Clostridium perfringens NCTC 13170 and several Listeria monocytogenes strains. High stability was recorded after heat treatment at 121 °C for 20 min and when stored at 4 °C for more than 40 days. A challenge test performed in milk for 11 day...
Renewable energy system for an isolated sustainable social centre
Pinto, J. G.; Fernandes, Fábio; Exposto, Bruno Fernandes; Monteiro, Vitor; Afonso, João L.This paper describes the development of the power converters and control algorithms to implement an isolated microgrid based in renewable energy sources used to feed a Sustainable Social Centre in a remote place. The microgrid is designed to work with photovoltaic panels, micro wind and micro-hydro turbines, or even with diesel generators. The control system of the power converters is totally digital and implem...
Model predictive current control of a proposed single-switch three-level active...
Monteiro, Vitor; Meléndez, Andrés A. Nogueiras; Couto, Carlos; Afonso, João L.This paper presents a model predictive current control applied to a proposed new topology of single-switch three-level (SSTL) active rectifier, which is exemplified in an application of single-phase battery charger for electric vehicles (EVs). During each sampling period, this current control scheme selects the state of the SSTL active rectifier that minimizes the error between the grid current and its referenc...