19 documents found, page 1 of 2
Circularity Micro-Indicators to Building and Construction Sector: Plastic Produ...
Matos, J.; Martins, C.I.; Simões, C.L.; Simões, R.The civil construction sector has been a large contributor for the continuous global increase in the consumption of plastics. However, while the properties of plastics make them very suitable for several civil construction applications, their sustainability is a concern, mostly because current approaches for design and manufacturing do not properly consider their entire lifecycle and end-of-life management. The...
A digital transformation approach to scaffold tourism crowding management: Pre-...
Brito e Abreu, F.; Marinheiro, R. N.; Boavida-Portugal, I.; Lopes, A.; Santos, T.; Sampaio de Almeida, D.; Simões, R.Tourism would probably not be economically sustainable without some localized crowding phenomena. Whatever the carrying capacity of the points of interest, their tourism managers should plan, monitor, and analyze visitors' crowding data to either prevent or mitigate the well-known effects of tourism overcrowding, such as degrading the tourists' experience, impacting negatively the environment and the local popu...
Circularity Micro-Indicators to Building and Construction Sector: Plastic Produ...
Matos, J.; Martins, C.I.; Simões, C.L.; Simões, R.O setor da Construção Civil é um dos maiores contribuintes da atualidade para o aumento continuo no consumo global dos plásticos. No entanto, apesar das propriedades dos plásticos se adequar a várias aplicações neste setor, a sua sustentabilidade é uma preocupação, principalmente porque as aplicações plásticas atuais são projetadas e fabricadas sem uma prudente reflexão sobre o seu ciclo de vida e a sua gestão ...
Software development analytics in practice: A systematic literature review
Caldeira, J.; Brito e Abreu, F.; Cardoso, J.; Simões, R.; Oliveira, T. C.; Reis, J.Software development analytics is a research area concerned with providing insights to improve product deliveries and processes. Many types of studies, data sources and mining methods have been used for that purpose. This systematic literature review aims at providing an aggregate view of the relevant studies on Software Development Analytics in the past decade, with an emphasis on its application in practical ...
Boosting the optical properties of polylactic acid/ lanthanide-based metal-orga...
Simões, R.; Rodrigues, J.; Granadeiro, C.M.; Rino, L.; Neto, V.; Monteiro, T.; Gonçalves, G.Luminescent lanthanide metal-organic frameworks (LnMOF) are gathering much interest in the scientific community due to their exceptional optical properties, which have the potential to revolutionize several application fields, including anti-counterfeiting. The traceability of the original products is an ever- growing demand for producers and end-users to verify the authenticity of produced goods. Following this ...
Phytochemical characterization of phloem in maritime pine and stone pine in thr...
Simões, R.; Pimentel, C.; Ferreira-Dias, S.; Miranda, I.; Pereira, H.This study analyzes the content and chemical profile of extractives present in the young phloem of mature trees of maritime pine (Pinus pinaster) and stone pine (P. pinea) in three sites in Portugal located in different climatic environments. The cross-sites average of extractives was similar in both pines with 38.5% in P. pinea and 37.7% in P. pinaster phloem. The hydrophilic fraction represented 82% and 70% o...
Effect of numerical parameters on plastic CTOD
Antunes, F. V.; Simões, R.; Branco, R.; Prates, PedroFatigue crack growth (FCG) is associated with irreversible and non-linear processes happening at the crack tip. This explains different problems observed in the use of da/dN-K curves, namely the inability to explain stress ratio and load history effects. The replacement of K by nonlinear crack tip parameters, namely the crack tip opening displacement (CTOD) is an interesting alternative. However, the determin...
Optimization of EDOT polymerization by using Design Expert®
Baptista, P.; Soares, Graça M. B.; Simões, R.; Miguel, R.The objective of this work was to study the effect of the drying time at 60ºC, the polymerization temperature and the polymerization time on the electrical characteristics of the textile substrates coated with poly (3, 4–ethylenedioxythiophene) (PEDOT). Plain weave fabrics were coated by the vapor phase polymerization method, to provide textile fabrics of polyester with high electrical conductivity for smart te...
Electrically conductive polymers for wearable electronics
Baptista, P.; Trindade, I. G.; Soares, Graça M. B.; Simões, R.; Miguel, R.The objective of this work was to produce electrically conductive coatings of poly (3, 4–ethylenedioxythiophene) on plain weave fabrics with the vapor phase polymerization method, to provide textile fabrics of polyester with high electrical conductivity for smart textile applications. The method used oxidant solutions of Iron (III) ptoluenesulfonate hexahydrate (FTS) and was optimized to maximize electrical con...
Qualitative analysis of vehicle needs and perceptions towards the adoption of a...
Carvalho, I.; Costa, P.; Simões, R.; Silva, A.; Silva, S. A.We explore in which extent the notion of a reconfigurable vehicle, presented as an innovation, is an anticipated need given the current patterns of vehicle occupancy. The main goals of this study are: (i) Identify latent needs towards vehicle purchase choices and use; (ii) Characterize the individual perceptions about car use, in general; (iii) Characterize the individual perceptions about the reconfigurable no...