Unidade de Investigação - LIDA - Laboratório de Investigação em Design e Artes
Permanent URI for this community
Browse
Browsing Unidade de Investigação - LIDA - Laboratório de Investigação em Design e Artes by Issue Date
Now showing 1 - 10 of 85
Results Per Page
Sort Options
- A eficiência da materialidade - O recurso a ferramentas digitais de simulação e fabricação aditiva na procura de uma maior eficácia dos dispositivosPublication . Gonçalves, Sérgio; Mateus, João Vasco; Hernandis-Ortuño, BernabéA praxis do Design de produtos, condicionada pelas crises sociais e ambientais que o mundo atravessa, deve passar pela procura de uma cada vez maior eficiência dos objetos na sua dimensão ambiental. Embora esta questão esteja a jusante de questões eventualmente mais relevantes na minimização deste problema, e que têm a ver com a legitimação da própria existência dos dispositivos, a otimização do recurso a matérias primas no fabrico de objetos é de fulcral importância. A possibilidade de otimizar os produtos pela redução da incorporação de matéria prima no seu fabrico e adequar o material a uma determinada utilização é central no seu processo de desenvolvimento. Por outro lado, as novas possibilidades trazidas pela fabricação aditiva no sentido de reduzir a quantidade de materiais e processos industriais associados à produção de componentes técnicos complexos permite perspetivar uma melhoria significativa do impacto ambiental tradicionalmente associado à sua obtenção. O presente artigo procura examinar como as tecnologias digitais de análise, otimização e fabricação aditiva poderão constituir uma resposta viável para uma produção mais eficiente do ponto de vista da incorporação de recursos não-renováveis e da minimização do impacto ambiental associado às tecnologias de produção tradicionais.
- The Fourth “R” - The Reversion of Objects as a Way of Reducing WastePublication . S. GonçalvesGiven the evident inefficiency of the policies and mechanisms established to deal with environmental degradation, it is essential to understand the reasons for their failures and to try alternative ways to mitigate the environmental problems associated with the replacement of objects. The ideas behind the so-called “3 R’s” policy, born of a sequence of two defining moments in the definition of environmental policies in Europe, - Agenda XXI in 1992 [1] and the 5th European Environment and Development Program of 1993 - have produced encouraging results since their creation, but failed to halt the increasing degradation of the environment on a planetary level. One of the problems derives from the fact that any of r's is strongly dependent on the environmental conscience, or even ethics, of the citizens responsible for the decisions regarding the products in their different moments of existence - from their design and production to their use and subsequent destination. This dependence leads to a high fallibility of environmental policies, insofar as western society suggests, in the way it behaves, a direction opposite to that which they advocate. It is thus important to reflect on ways of designing and producing things whose environmental performance is less dependent on the environmental consciousness of the end user, so that this awareness is not so decisive in the impact resulting from the disposal of objects. The present work tries to analyse the response of a group of students of design to the introduction of a “4thR”, that we call Reversion, and that is to think products of daily use whose form is conditioned by the necessity of its components can be, when dismantled of the system, seen as raw material directly usable for another purpose, easily determined by the user, and not as a technical component of an obsolete system. Functional prototypes will be realized in order to evaluate and validate the products regarding their effective performance in terms of production and use, as well as the possibility of reuse of their components in contexts other than those for which the objects were designed.
- CAPÍTULO III - PROMOVENDO COMPORTAMENTOS SAUDÁVEIS NA ADOLESCÊNCIA COM UMA APLICAÇÃO MÓVEL: O PROCESSO DE ILUSTRAÇÃO, DESIGN E GAMIFICAÇÃO.Publication . Reis, Catarina; Pernencar, Cláudia; Carvalho, Marta; Fragata, Nuno; Martinho, Ricardo; Alves, Rodrigo; Morais, Teresao Projeto TeenPower adotou um conjunto de estratégias com o intuito de promover a solução de mHealth especialmente concebida para adolescentes. No sentido de divulgar, promover e envolver os adolescentes na utilização desta aplicação móvel foi necessário definir e seguir orientações de promoção que viabilizassem a utilização da aplicação. A imagem da marca TeenPower e o seu logotipo customizado foram utilizados em operações de marketing e divulgação junto dos adolescentes, numa perspetiva de gerar afinidade e identificação/reconhecimento com o projeto. Foram criadas ilustrações e grafismos específicos para adolescentes, no sentido de promover hábitos de vida saudáveis através de cartazes para impressão ou digitais especialmente concebidos para adolescentes. Este processo decorreu no âmbito de uma unidade curricular uC de Design e Composição Gráfica do curso de Ilustração e Produção Gráfica e envolveu todos os estudantes no sentido de lhes permitir experimentar com um caso real a temática da uC. Toda a experiência de utilização da aplicação móvel foi cuidadosamente concebida, validada e implementada, de forma incremental e continuada. A geração desta experiência de utilização foi merecedora de um estudo em 3 fases que apostou fortemente na realimentação do sistema recorrendo ao feedback obtido pelos utilizadores/avaliadores num determinado momento. o envolvimento de estudantes das áreas de design, enfermagem e engenharia permitiu tirar partido de uma equipa multidisciplinar que, conjuntamente com utilizadores adolescentes, concebeu a base de trabalho para a implementação descrita posteriormente na secção 3 do presente capítulo. Finalmente, e diretamente relacionado com o envolvimento continuado dos adolescentes surge a aposta na utilização de uma aplicação móvel. A gamificação foi uma das técnicas utilizadas, tanto na fase de conceção e desenho, como posteriormente, na fase de implementação. o grande objetivo foi conseguir manter os utilizadores envolvidos e dar uma resposta efetiva à redução da taxa de retenção dos utilizadores, da plataforma de mHealth TeenPower
- Homegreens - Aquaponics System as an Educational Tool towards a Sustainable FuturePublication . Carreira, Rute; Diz, Francisco; Pessanha, Luis; Bernardino, Raul; Franco, Inês M.; Mota, Alexandra; Faustino, Emanuel; Silva, Orlando R.; Ferreira, Susana M. F.Aquaponics is an integrated production practice that emerges from the combi-nation of two farming techniques: hydroponics and aquaculture. It consists in a simulation of a natural ecosystem that grows plants without soil substrate in the nutrient enriched waters recirculated from aquaculture systems. This type of production offers several advantages, namely economic and ecological ones. Homegreens is a project that aims to create small saltwater and freshwater aquaponic sys-tems, which can be installed in schools and serve as a didactic tool for introducing contents such as biology and sustainability to a juvenile audience. Implemented by a designers, biol-ogists and agronomists’ multidisciplinary team, the methodology was based on the develop-ment and quantitative validation of prototypes, and the installation and qualitative analyses of user’s interaction. These small scale aquaponic systems consists on a grow bed, an aquarium with a capacity for 45L, a protection barrier for the plant’s roots, aeration, biofilters and a thermostat. Sever-al simplified models were developed, presented and installed in two primary schools. Labor-atory tests were conducted to validate the use of a cork grow bed and a 3D printed polya-cid lactic (PLA) aeration and biofilter system. Children’s engagement and interaction with these simplified models, indicates that these systems will provide a biology and sustainability related group learning opportunity.
- Personagens de representação inclusiva: em busca da diversidade de representação no projeto ProLearn4ALLPublication . Marques, Nuno Fragata; Freire, Carla; Mangas, Catarina
- Língua Gestual e Filmes de animação - Cruzamento de Arte e Cultura em Prol da Inclusão.Publication . Rodrigues, Andreia; Sousa, Joana; Fragata, NunoO trabalho apresentado surge no âmbito do desenvolvimento de uma dissertação decorrente no mestrado em Comunicação Acessível, abarcando temáticas como “Inclusão pelas artes e cultura”, “Tecnologia da informação para a Inclusão” e “Comunicação Acessível”. O presente resumo irá explicitar a importância de pensarmos o cinema de animação como potenciador de inclusão da comunidade Surda, promovendo o Deaflore no público Surdo24 e, simultaneamente, apresentar um produto que possa mostrar uma das línguas reconhecidas no nosso país, despertando curiosidades e sensibilizando para uma forma de expressão diferente. Este estudo pretende culminar num guião orientador sobre como criar desenhos animados se expressem em Língua Gestual e ambiciona um protótipo experimental de uma curtametragem com vista à replicação do mesmo.
- Are you ready for the challenge? Social Media Health Challenges for Behaviour ChangePublication . Saboia, Inga; Almeida, Ana Margarida Pisco; Sousa, Pedro; Pernencar, CláudiaChallenges are one of the most common strategies used by Opinion Leaders on Social Media to engage users. They are often found in different areas; in the Health field, the use of challenges is growing, namely through initiatives aiming at eating behaviour change. Instagram is considered to be one of the most used Social Media applications to develop these initiatives, allowing Opinion Leaders to communicate and engage with their online followers. Despite this scenario, little is known regarding how Health Challenges are being used and what is their impact on behaviour change. Previous research has already shown how Opinion Leaders use Instagram to promote eating behaviour change. The purpose of this paper is to conceptualize, describe and discuss Social Media Health Challenges, aiming to analyse Instagram challenges on healthy eating. The study was organized in two phases: the first one is a literature review based on Prisma method that supported the conceptualisation of SocialMedia Challenges and the design for the second phase where Social Media Health Challenges of Opinion Leaders, such as Nutritionists, Health Lifestylers and Patient Opinion Leaders (POLS) were analysed. Results showed that most of the challenges are promoted by Patient Opinion Leaders and Health Lifestylers. Followers adhere to Social Media Health Challenges related to weight loss, engaging with Opinion Leaders. The psychological-cognitive components (such as habits, motivation, and self-control) were found in the analysed challenges, and Instagram is one of the used tools to promote these Initiatives. These results point to new paths regarding future research on other behaviour change online initiatives.
- Aluminum-to-Steel Cladding by Explosive WeldingPublication . Carvalho, Gustavo H. S. F. L.; Galvão, Ivan; Mendes, Ricardo; Leal, Rui M.; Loureiro, AltinoThe production of aluminum-carbon steel and aluminum-stainless steel clads is challenging, and explosive welding is one of the most suitable processes to achieve them. The present work aims to investigate the coupled effect of two strategies for optimizing the production of these clads by explosive welding: the use of a low-density interlayer and the use of a low-density and low-detonation velocity explosive mixture. A broad range of techniques was used to characterize the microstructural and the mechanical properties of the welds, specifically, optical microscopy, scanning electron microscopy, energy dispersive spectroscopy, electron backscatter diffraction, microhardness and tensile-shear testing with digital image correlation analysis. Although aluminum-carbon steel and aluminum-stainless steel have different weldabilities, clads with sound microstructure and good mechanical behavior were achieved for both combinations. These results were associated with the low values of collision point and impact velocities provided by the tested explosive mixture, which made the weldability difference between these combinations less significant. The successful testing of this explosive mixture indicates that it is suitable to be used for welding very thin flyers and/or dissimilar materials that easily form intermetallic phases.
- Explosive welding of aluminium to stainless steel using carbon steel and niobium interlayersPublication . Carvalho, G.H.S.F.L.; Galvão, I.; Mendes, R.; Leal, R. M.; Loureiro, A.This work aimed to study aluminium to stainless steel explosive welds produced using two different interlayers: carbon steel and niobium. The use of each interlayer was analysed and compared microstructurally and mechanically using many characterisation techniques. The final joints using both interlayers presented favourable interfacial microstructure: waves on both interfaces. However, the joint using the carbon steel interlayer showed the best mechanical properties compared to the joints using the niobium interlayer. All interfaces found on both welds were wavy. However, depending on the metallic alloy combination, the shape of the wave is completely different. The results suggest that the shape of the waves is influenced by the shock impedance mismatch of the materials being welded. The impedance mismatch parameter (IMP) developed for explosive welding in this work proved to be a compelling method to order metallic combinations in a single axis to estimate the tendency to form typical or curled waves. Typical symmetrical waves tend to develop less quantity of IMCs than curled waves. However, the mechanical tests performed did not detect differences that could have been caused by this difference.
- Homegreens: Aquaponics and EducationPublication . Carreira, Rute; Pessanha, LuisThe Homegreens project aims to develop small freshwater or saltwater aquaponic systems, which can be in-stalled in schools, serving as a pedagogical tool for the apprenticeship of subjects such as biology and sustaina-bility to the juvenile audience. A multidisciplinary team of designers, biologists, and agronomists was responsi-ble for the project’s research. The development and installation of experimental models, for qualitative analy-sis of user interaction, determined the methodology layout. This small-scale aquaponic system consists of two different grow beds, an aquarium with a capacity of 45L, a separating barrier for plants’ roots, a biofilter mesh with an integrated aerator, a valve for sediment cleaning, and two tripods. The involvement and the interaction with the Homegreens’ aquaponic system provides a group learning oppor-tunity, which contributes to environmental literacy in children with relevant values and experiences.