58 documents found, page 1 of 6
Relationship Between Quality of Life, Level of Physical Activity, Physical Fitn...
Gazolla, Jeann C.; Ferreira-Júnior, João; Encarnação, Samuel; Schneider, André; Monteiro, António M.; Teixeira, José Eduardo; Forte, PedroAdolescence is a critical period for the development of physical and cognitive health. Understanding how lifestyle and physical health parameters relate to academic performance and quality of life may inform school-based interventions. Purpose: This study aimed to evaluate the relationship between physical activity level (PAL), quality of life (QoL), physical fitness (PF), strength, speed and agility, body comp...
Tuning the properties of gelatin films through crosslinking and addition of ion...
Etxabide, Alaitz; Carvalho, Estela; Pereira, Nelson; Correia, Daniela; Guerrero, Pedro; Costa, Carlos M.; Caba, Koro de la; Lanceros-Mendez, S.The exploration into biopolymer applications has experienced fast growth in recent years due to the ever-growing environmental and societal demand for a greener and safer environment. In this study, fish gelatin-based films with fructose and different choline-based ionic liquids, such as choline dihydrogen phosphate, choline acetate, and choline serinate, were prepared to assess the effect of Maillard reaction ...
Viticulture under climate change: a case study on a water scarcity model
Pereira, Leonor; Valente, António; Soares, Bruno; Costa, Carlos M.; Soares, Salviano; Lima, José; Gonçalves, IgorChanges in climatic patterns hinder the prediction of water availability, being imperative to develop new strategies to optimise water management in the agricultural sector. A multi-sensor network is being developed by ADVID/CoLAB VINES&WINES and University of Trás-os-Montes and Alto Douro (UTAD), aiming to determine water stress in vineyards, as a Decision Support System (DSS) for winegrowers. Remote wireless ...
Cognitive workload and fatigue in a human-robot collaborative assembly workstat...
Santos, Joana; Ferraz, Mariana; Pinto, Ana; Rocha, Luís Freitas; Costa, Carlos M.; Simões, Ana Correia; Bombeke, Klass; Vaz, MárioIndustry 5.0 represents a novel approach that builds upon the advancements of Industry 4.0 and is aimed at fostering a more harmonious relationship between humans and machines to prioritize resource efficiency and user-centered manufacturing.Objective: This paper presents a study, integrated in the COBOSHe project, for assessing and analyzing the cognitive workload and fatigue, using heart rate (HR) and a perce...
A LoRaWAN IoT system for smart agriculture for vine water status determination
Valente, António; Costa, Carlos M.; Pereira, Leonor Sousa; Soares, Bruno; Lima, José; Soares, SalvianoIn view of the actual climate change scenario felt across the globe, resource management is crucial, especially with regard to water. In this sense, continuous monitoring of plant water status is essential to optimise not only crop management but also water resources. Currently, monitoring of vine water status is done through expensive and time-consuming methods that do not allow continuous monitoring, which is...
Three-dimensional printing for solid-state batteries
Pinto, Rafael S.; Gonçalves, Renato Ferreira; Lanceros-Méndez, S.; Costa, Carlos M.Driven by the urgent need of decarbonization of the economy, the necessity of storage clean electric energy generated from renewable sources and increasing growth of the use of portable devices, raise the necessity of new batteries systems capable of integrate in new devices and substrates, with improved efficiency and energy/power density. In this scope, solid-state batteries associated with printing technolog...
Multifunctional ternary composites with silver nanowires and titanium dioxide n...
Tubio, Carmen R.; Pereira, Nelson Miguel Macedo Silva; Campos, Lia; Martins, Pedro Manuel; Vilas-Vilela, Jose Luis; Costa, Carlos M.Multifunctional polymer composites are of increasing interest as they allow tuning of physical–chemical properties for specific applications. A ternary composite material is presented based on the incorporation of titanium dioxide (TiO2) nanoparticles and conductive silver nanowires (AgNWs) into a poly(vinylidene fluoride) (PVDF) polymer matrix. The films were prepared by solvent casting, varying the contents o...
Environmentally friendly conductive screen‐printable inks based on N‐Doped grap...
Franco, Miguel; Motealleh, Azadeh; Costa, Carlos M.; Hilliou, L.; Perinka, Nikola; Ribeiro, Clarisse; Viana, Júlio César; Costa, PedroThe development of polymer-based conductive inks has gained increasing interest in the areas of printed and molded electronics. Graphene-based materials are explored in this scope, reduced graphene oxide (rGO) being among the most used conductive filler components of the inks. Herein, rGO is doped with nitrogen to obtain N-rGO; the replacement of oxygen atoms by nitrogen ones increases the electrical conductivi...
Tailoring physicochemical properties of collagen-based composites with ionic li...
Andonegi, Mireia; Correia, Daniela Maria Silva; Costa, Carlos M.; Lanceros-Méndez, S.; Caba, Koro de la; Guerrero, PedroWool, choline dihydrogen phosphate ([Ch][DHP]) or choline serinate ([Ch][Seri) ionic liquids (ILs) were incorporated into native collagen formulations and films were prepared by compression molding. Scanning electron microscopy (SEM) images showed no agglomeration, indicating good dispersion of additives within films. The denaturation peak observed by differential scanning calorimetry (DSC), along with infrared...
3D-printed carrageenan-based nanocomposites for sustainable resistive sensing d...
Macedo, Vera M.; Pereira, Nelson Miguel Macedo Silva; Tubio, Carmen R.; Martins, Pedro; Lanceros-Méndez, S.; Costa, Carlos M.In the scope of natural based materials for sustainable technologies, this work reports on resistive sensors based on carrageenan composites with multi-wall carbon nanotubes (MWCNT). The materials were processed by direct-ink-writing with water as a solvent and mechanical, thermal and electrical property of printed composites have been tailored by varying filler content. It is shown that the inclusion of the ca...