39 documents found, page 1 of 4
Comparison of the corrosion of ferritic and austenitic stainless steel (AISI 43...
Gil, Mafalda; Pedrosa, Fátima; Paiva Luís, Teresa; Figueira Vasques, Isabel; Oliveira, Fernando; Cunha Diamantino, TeresaABSTRACT: This study focuses on the corrosion rates and mechanisms of two stainless steels, austenitic AISI 316L and ferritic AISI 430, in contact with a eutectic mixture of LiNaK carbonates in long-term tests at 650 degrees C. The selection of these two stainless steels was based on their differences, both in their intrinsic characteristics and in the cost associated with each one. The research also underscore...
Thermochemical performance of ceria coated-macroporous 3D-printed black zirconi...
Oliveira, Fernando; Barreiros, Maria Alexandra; Sardinha, Manuel; Leite, Marco; Fernandes, Jorge; Abanades, StéphaneABSTRACT: The use of macroporous structured ceria for the solar thermochemical splitting of CO2 and H2O to produce clean fuels through two-step redox cycles was investigated. The research aimed to assess the reactivity of 3D-printed black zirconia gyroid structures coated with a microporous layer of pure CeO2 for producing CO and H2. Such porous designs are intended to increase both the absorption of solar radi...
Mechanical Performance of Ceria-Coated 3D-Printed Black Zirconia Cellular Struc...
Oliveira, Fernando; Sardinha, Manuel; Justino Netto, Joaquim Manoel; Leite, Marco; Farinha, Miguel; Barreiros, Maria Alexandra; Abanades, StéphaneABSTRACT: Solar fuels production requires developing redox active materials with porous structures able to withstand thermochemical cycles with enhanced thermal stability under concentrated solar irradiation conditions. The mechanical performance of 3D-printed, macroporous black zirconia gyroid structures, coated with redox-active ceria, was assessed for their suitability in solar thermochemical cycles for CO2 ...
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...
Imagery analysis requirements in the context of brand visual language: The case...
Gastal, Manuela; Oliveira, Fernando; Raposo, DanielImage has been studied from various disciplines, persisting the lack of studies on the role of imagery in the symbolic repertoire or creation of brand meaning and to brand communication. This research seeks to establish connections between a brand’s imagery and its personality in order to provide parameters that may contribute to defining the photographic aesthetics for the visual language of a particular brand...
Principles of design applied from the perspective of semiotics and branding.: O...
Gastal, Manuela; Oliveira, FernandoThis article aims to discuss and explain the benefits of a model for the definition of brand imagery, created based on design principles applied to image semiotics, namely used in its interpretation.The methodology used in this research work has a mixed methodological basis, based on the literature review. From the perspective of semiotics, parameters used in the interpretation of images are identified, namely ...
Visual synthesis languages of the DNA of the Star Michelin gastronomic brands: ...
Magalhães, Alexandre; Oliveira, FernandoThis study focuses on the use of Diagrams in the process of systems analysis and Visual Brand Identity language. The comparative study of Gastronomic Star Michelin brands cases was developed in order to understand their DNA and positioning in relation to the communication elements used.The results obtained, allowed us to understand the different visual languages among the BRANDS, from their visual component, th...
Involvement of the Iron-Regulated Loci hts and fhuC in Biofilm Formation and Su...
Oliveira, Fernando; Lima, Tânia; Correia, Alexandra; Silva, Ana Margarida; Soares, Cristina; Morais, Simone; Weißelberg, Samira; Vilanova, ManuelStaphylococcus epidermidis is a major nosocomial pathogen with a remarkable ability to persist on indwelling medical devices through biofilm formation. Nevertheless, it remains intriguing how this process is efficiently achieved under the host’s harsh conditions, where the availability of nutrients, such as essential metals, is scarce. Following our previous identification of two iron-regulated loci putatively ...
The relevance of communication design and the undeniable power of brands
Raposo, Daniel; Oliveira, Fernando; Lélis, CatarinaCommunication design can well be framed as the heartland of effective communication. Brands are the result of a communication design exercise and their impact on lifestyles, either in terms of behaviour change or adaptation, ways of communicating, or one’s own perception of the human condition and the world, is well established. On the other hand, research fulfils the purpose of questioning, understanding, and ...
As ferramentas de branding como um importante recurso para as marcas de moda du...
Nepomuceno, Gisele; Moura, Catarina Grácio; Oliveira, FernandoEste artigo tem como objetivo analisar como as marcas de moda utilizaram ferramentas de branding em sua comunicação e como essas estratégias foram importantes recursos durante os períodos de confinamento da pandemia, de forma a manter sua ligação com os consumidores e/ou atrair novos clientes para a marca. Por meio de revisão bibliográfca, pode-se observar a influência das redes sociais no fortalecimento do vín...