Percorrer por autor "Ribeiro, Tiago"
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- Application of 2D packing algorithms to the woodwork industryPublication . Ribeiro, Tiago; Coelho, João Paulo; Pereira, Ana I.The paper's objective is to solve the well-known, well-studied problem of 2D Packing applied to the Wood Work industry to reduce waste through a more efficient reintegration of raw materials into the production cycle for this multi-objective strategy, evolutionary and learning processes are explored throughout the problem-solving process. The Wood Work 4.0 (WW4. 0) project aims to develop new approaches to manufacturing furniture, mainly in Small and Medium Enterprises (SMEs). As a sector that modernized by introducing new.
- Application of 2D packing algorithms to the woodwork industryPublication . Ribeiro, Tiago; Pereira, Ana I.Esta pesquisa investiga a aplicação de metodologias computacionais na indústria madeireira, com foco no Problema do Corte de Material (PCE) com duas iterações: guilhotinável e não guilhotinável. O estudo aplica um algoritmo evolucionário baseado no Non-dominated Sorting Genetic Algorithm II (NSGA-II) adaptado às complexidades do problema para otimizar o processo de corte. A metodologia tem como objetivo melhorar a eficiência da utilização de material em tarefas de trabalho em madeira, empregando este algoritmo utilizando sobras de peças ao invés de uma nova placa. O relatório fornece dados empíricos e métricas de desempenho do algoritmo, demonstrando a sua eficácia na redução do desperdício e na otimização do trabalho na indústria. Esta abordagem melhora a eficiência operacional e sublinha os benefícios ambientais da utilização mais sustentável dos recursos de madeira, exemplificando o potencial da integração de técnicas computacionais em indústrias tradicionais para atingir este objetivo.
- Comparação do comportamento agronómico de cinco variedades de colzaPublication . Rodrigues, M.A.; Almeida, Arlindo; Ribeiro, Tiago; Ferreira, Jorge; Arrobas, MargaridaA colza é uma cultura oleaginosa cuja produção mundial está a aumentar, sobretudo pela importância do seu óleo para o fabrico de biocombustíveis. A colza é uma cultura de elevada produção de biomassa, tendo também valor forrageiro. Portugal é, praticamente, o único país europeu que não produz colza. Em Espanha produziram-se 28900 tono de semente em 2009. Contudo, estudos recentes têm mostrado que Portugal tem condições ecológicas favoráveis para a produção desta cultura.
- Modelling with NGSI-LD: the VALLPASS project case studyPublication . Ribeiro, Tiago; Coelho, João Paulo; Jorge, Luísa; Sardão, Joaquim; Gonçalves, José; Rosse, HigorThe smart cities paradigm covers multiple domains which span from citizens' accessibility and mobility to general infrastructures and services. Hence, smart cities can be seen as an excellent showcase of heterogeneity, namely at the data level. For this reason, they are a perfect candidate for linked data and semantic web concept applications. This powerful combination leads to interoperability at the data level which is one of the ultimate goals of the Internet of Things (IoT). In this reference frame, NGSI-LD is an open framework for context information processing consisting of both a semantic information model and a RESTful Application Programming Interface (API). This paper proposes a methodology for creating semantic data models in the context of IoT, namely to represent and describe data associated with digital twins. The methodology is presented in a practical way, through the process of creating an NGSI-LD semantic data model for the VALLPASS project, inserted in the traffic domain, which is one of the most popular in smart cities.
- Response of rapeseed to nitrogen fertilisation in a mediterranean environmentPublication . Rodrigues, M.A.; Almeida, Arlindo; Ferreira, Jorge; Ribeiro, Tiago; Arrobas, MargaridaPortugal needs urgently to increase the production of vegetable oils to be able to meet the mandatory 10% minimum target to be achieved by all member states for the share of biofuels in transport petrol and diesel consumption by 2020 (Directive 2009/28/EC). Rapeseed oils the main raw material used in Europe for the manufacture of biofuels. Portugal, however, does not produce rapeseed oil, in spite of some studies have indicated that there are favourable ecological conditions to do that around the country [I, 2].
- Response of rapeseed to nitrogen fertilisation in a mediterranean environmentPublication . Rodrigues, M.A.; Almeida, Arlindo; Ferreira, Jorge; Ribeiro, Tiago; Arrobas, MargaridaPortugal needs urgency to increase the production of vegetable oils to be able to meet the mandatory 10% minimum target to be achieved by all EU member states for the proportion of biofuels in petrol and diesel consumption by 2020 (Directive 2009128/EC). Rapeseed oil is the main raw material used in Europe for the manufacture of biofuels. Portugal, however, does not produce rapeseed oil, in spite of some studies having indicated that there are favourable ecological conditions to do this throughout the country [I, 2]