106 documents found, page 1 of 11
Thermally modified wood: assessing the impact of weathering on mechanical stren...
Godinho, Delfina; Lourenco, Ana; Araújo, Solange; Machado, José Saporiti; Nunes, Lina; Duarte, Marta; Duarte, Sónia; Ferreira, Cristina; Quilhó, TeresaABSTRACT: The main objective of this study was to evaluate the mechanical properties of three thermal-modified wood species when exposed to weathering in urban and maritime/industrial environments and their durability against subterranean termites. The wood species studied were Maritime pine, ash, and blackwood acacia. All wood samples were exposed to two different environments (urban and maritime/industrial) f...
Detection of corrosion on silvered glass reflectors via image processing
Wiesinger, Florian; Baghouil, Sarah; Le Baron, Estelle; Collignon, Romain; Santos, Filipa; Cunha Diamantino, Teresa; Catarino, Isabel; Facão, JorgeABSTRACT: A novel characterization technique based on image analysis is presented, intended to complement state-of-the-art reflectometer measurements. The technique is developed by experts from different laboratories (OPAC, AGC, CEA and LNEG), which subsequently conduct two Round Robin experiments on corroded solar reflectors for validation. Regarding the inter-comparability, it is found that parameters like th...
Dielectric UV filters for protection of fire-resistant glass based on intumesce...
Silva, Ricardo Magno Lopes; Hashim, Hurraira; Roy, Deepto; Oliveira Fernandes, Carolina; Oliveira, Kevin; Leitão Pinheiro, Xavier AlexandreABSTRACT: Structures such as OLEDs, perovskite solar cells, intumescent glasses, and other components in modern devices and buildings contain materials suscep-tible to degradation when exposed to UV radiation, requiring protection to with-stand outdoor environmental conditions. In this work, multilayer coating config-ured as a Bragg Reflector on glass is employed as spectral filtering to protect the intumescent...
Protection of Steel Structures against Fire and Corrosion by Paint Coatings: A ...
Ferreira, Cristina; Gonçalves, Rita; Alves, Isabel N.; Vieira, Ana; Donato, Mariana; Morgado, Vanessa; Silva, HelenaABSTRACT: Steel structural systems in modular construction must be protected against corrosion and fire exposure. The durability of both protective properties plays a key role in ensuring long-term service life and minimizing maintenance costs. The present work aims to validate anticorrosive protection systems for steel structures, with and without fire protection properties, evaluating degradation mechanisms a...
Dual modulation of cytotoxic and checkpoint receptors tunes the efficacy of ado...
Blanco Dominguez, Rafael; Barros, Leandro; Carreira, Mariana; van der Ploeg, Manon; Condeço, Carolina; Marsères, Gabriel; Ferreira, CristinaColorectal cancer (CRC) remains a challenge for current immunotherapies. Vδ1+ γδ T cells offer a promising alternative because of their HLA-I-independent cytotoxicity and natural tissue tropism. We developed Delta One T (DOT) cells, a Vδ1+ γδ T cell-based adoptive cell therapy clinically explored for hematological malignancies but not yet for solid tumors. Here we demonstrate the capacity of DOT cells to target...
Water quality for bivalve molluscs and consumer safety: application of novel an...
Cravo, Alexandra; Barbosa, Ana; Borlido Oliveira Lima, Maria João; Ferreira, Cristina; Correia, Cátia; Matos, André Filipe; Jacob, José; Caetano, SandraWater quality degradation associated with wastewater discharges compromises the production of marine living resources. Water quality indices (WQIs) are relevant tools for water quality management, but most applications are limited to the suitability of freshwater for drinking. In this study, a novel WQI was developed to assess the effects of urban wastewater treatment plant (WWTP) discharges on the water qualit...
Report of a rare 3q29 interstitial microdeletion: prenatal diagnosis and postna...
Simão, Laurentino; Pedro, Sónia; Marques, Bárbara; Serafim, Sílvia; Ferreira, Cristina; Tarelho, Ana; Brito, Filomena; Silva, Marisa; Alves, CristinaDistal interstitial deletions in the 3q29 region are rare. The characterization of new prenatal diagnosis (PND) cases and their follow-up may add knowledge about the affected region.
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Lourenço, Alexandra; Catrola, Albertina; Henriques, Alxandra; Dias, António; Ferreira, Cristina; Nunes, Inês; Ramos, RuteO desafio da SGMJ é gerir o ciclo de vida da informação digital.
The behavior of thermally modified wood after exposure in maritime/industrial a...
Godinho, Delfina; Ferreira, Cristina; Lourenço, Ana; Araújo, Solange; Quilhó, Teresa; Cunha Diamantino, Teresa; Gominho, JorgeABSTRACT: Natural and thermally modified Pine, Ash, and Acacia woods were exposed in two different environments: urban and maritime/industrial. The weathering effects were evaluated during 24 months regarding color, chemical, and structural changes. In all wood species, thermal modification induced color, chemical, and structural changes. All woods became darker (Pine Delta L*: -32.01; Ash Delta L*: -36.83; Aca...
The behavior of thermally modified wood after exposure in maritime/industrial a...
Godinho, Delfina; Ferreira, Cristina; Lourenço, Ana; Araújo, Solange; Quilhó, Teresa; Diamantino, Teresa C.; Gominho, JorgeNatural and thermally modified Pine, Ash, and Acacia woods were exposed in two different en- vironments: urban and maritime/industrial. The weathering effects were evaluated during 24 months regarding color, chemical, and structural changes. In all wood species, thermal modifi- cation induced color, chemical, and structural changes. All woods became darker (Pine ΔL*: 32.01; Ash ΔL*: 36.83; Acacia ΔL*: 27.50), t...