Browsing by Issue Date, starting with "2023-05-15"
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- Avaliação do Desempenho Mecânico de Materiais para Elementos Moldantes de Moldes Híbridos Produzidos por Tecnologias de Fabrico AditivoPublication . Dias, Humberto Ponce Gonçalves; Martinho, Pedro Miguel Gonçalves; Mateus, Artur Jorge dos SantosNo processo de infiltração para a produção de um postiço com canais conformáveis para moldes híbridos a ser utilizado na moldação por injeção, analisaram-se as tentativas de infiltração de cobre e bronze em provetes produzidos pela tecnologia de fabrico aditivo de deposição digital seletiva de pó (DDSP). Como pó da matriz base foram utilizados dois materiais: um aço inoxidável, o 16316D.04, e uma liga sem crômio em sua composição (W722). As tentativas de infiltração ocorreram em forno com atmosfera controlada, neste caso foram testadas atmosferas de hidrogénio e argônio, e em forno sem atmosfera controla, neste caso foram utilizados eléctrodos de grafite para minimizar a oxidação nos materiais e foram testadas 3 disposições dos materiais no interior do forno. Tanto um forno quanto outro, foram testadas diferentes temperaturas e tempos até que fosse obtida estabilidade no processo de infiltração. Após esta estabilização, foram produzidos provetes que passaram por ensaios de dureza e tração. Por fim, com os resultados avaliados, realizou-se a infiltração de bronze para a produção do postiço.
- Chilero Coffee: The feasibility of opening a Guatemalan specialty coffee shop with a sustainable focus in LisbonPublication . Garcia, Genesis; Oliveira, Fernanda Maria Fernandes; Eurico, Sofia TeixeiraThis project examines the feasibility of opening Chilero Coffee, a Guatemalan specialty coffee shop with a sustainable focus in Lisbon, Portugal. The investigation includes a literature review, interviews with specialty coffee stakeholders in Lisbon, as well as a SWOT analysis. The purpose of the study is to identify the potential of the specialty coffee shop concept as well as the challenges it may face. The literature review introduces the world of specialty coffee, explores culture and tourism trends in Lisbon as they relate to specialty coffee, presents relevant sustainability issues, and offers a case study on Guatemalan coffee production. Methodologically, and with the aim of better understanding local market trends and consumer preferences, an interview was conducted with a panel of 10 people, experts in specialty coffee shops and representatives of Lisbon’s Tourism and Hospitality industry. Lastly, a SWOT analysis was applied to assess how Chilero Coffee as a business concept compares to its competition, as well as to present strategies it can use to give it a competitive edge. The study’s findings reveal numerous strengths Chilero Coffee already holds as a one-of-a-kind coffee shop concept that will attract a loyal customer base. These include showcasing high-quality Guatemalan coffee, engaging in sustainable coffee production and consumption practices, offering engaging intercultural programming, and making creative use of the café’s space as an educational and cultural hub to distribute comprehensive knowledge about specialty coffee and Guatemalan culture. From the research, a few weaknesses emerged. These include high operational costs, a narrow product offer, and potential price barriers for some customers. However, the analysis also introduced compelling opportunities for Chilero, such as expanding upon Portugal’s existing coffee knowledge and Lisbon’s eveloping specialty coffee scene, cultivating cultural exchange, fostering community between foreigners and locals, and inspiring slow tourism practices. Lastly, some of the potential threats to Chilero Coffee’s success include high competition in the market, a lack of awareness of Guatemalan culture in Portugal, and unpredictable environmental conditions that could affect specialty coffee production. While Chilero Coffee may face some challenges, the café has commensurable strengths and opportunities to responsibly promote Guatemalan culture, nurture intercultural exchange, and encourage sustainable production and consumption practices in consumers and other similar business types. The findings presented in the study provide valuable insights and support for starting a Guatemalan specialty coffee shop with a sustainable focus in Lisbon, Portugal.