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Vítor Caldeirinha, João Lemos Nabais and Cláudio Pinto
Supply chains are complex systems that have grown in dimension and spread worldwide. In supply chains, physical and information flows have strict service quality requirements, namely transparency conditions and traceability. Seaports, connecting land and...
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Vítor H. Pinto, Inês N. Soares, Marco Rocha, José Lima, José Gonçalves and Paulo Costa
This paper presents a legged-wheeled hybrid robotic vehicle that uses a combination of rigid and non-rigid joints, allowing it to be more impact-tolerant. The robot has four legs, each one with three degrees of freedom. Each leg has two non-rigid rotatio...
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Vítor H. Pinto, José Gonçalves and Paulo Costa
Throughout this paper, the model, its parameter estimation and a controller for a solution using a DC motor with a gearbox worm, coupled to a non-rigid joint, will be presented. First, the modeling of a non-linear system based on a DC Motor with Worm Gea...
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Vítor H. Pinto, José Gonçalves and Paulo Costa
The following paper presents an improved, low cost, non-rigid joint that can be used in both robotic manipulators and leg-based traction robotic systems. This joint is an improvement over the previous one presented by the same authors because it is more ...
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José Gabriel Oliveira Pinto, Rui Macedo, Vitor Monteiro, Luis Barros, Tiago Sousa and João L. Afonso
This paper presents a single-phase Shunt Active Power Filter (SAPF) with a multilevel converter based on an asymmetric full-bridge topology capable of producing five distinct voltage levels. The calculation of the SAPF compensation current is based on th...
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Fernando Silva Parreiras,Vitor Afonso Pinto,Marco Antônio Calijorne Soares,Daniel Henrique Mourão Falci
For many years, plant engineers have used data collected from industrial sensors for supporting the diagnosis of failures. Recently, data scientists are using these data to make predictions on industrial processes. However, the meaning and the relationsh...
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Andresa Baptista, Gustavo Pinto, Francisco J. G. Silva, Andreia A. Ferreira, Arnaldo G. Pinto and Vitor F. C. Sousa
The automotive industry is a pioneer in solutions that meet market expectations. However, in the automotive industry, some less environmentally friendly technologies are still used, such as electroplating. Due to legislative restrictions in several count...
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Mohamed Tanta, J. G. Pinto, Vitor Monteiro, Antonio P. Martins, Adriano S. Carvalho and Joao L. Afonso
This paper presents a deadbeat predictive current control methodology to reduce the circulating currents in a modular multilevel converter (MMC) when it operates as a rail power conditioner (RPC) in a conventional railway system-based V/V connection. For...
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Ana Paula Cláudio, Maria Beatriz Carmo, Vítor Pinto, Renato Teixeira, Diana Galvão, Afonso Cavaco, Mara Pereira Guerreiro
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Este artigo descreve um protótipo de Realidade Virtual destinado ao treino de competências técnicas e de comunicação dos estudantes de Ciências Farmacêuticas. Numa situação simulada, um humano virtual desempenha o papel de um paciente/doente que requer o...
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Alberto Cruz da Silva Junior, Paulo Jorge de Oliveira Ponte de Souza, Denis de Pinho Sousa, Lucieta Guerreiro Martorano, Carina Melo da Silva, Carolina Melo da Silva, Hildo Giuseppe Garcia Caldas Nunes, Marcus José Alves de Lima, Adriano Marlisom Leão de Sousa, João Vitor de Nóvoa Pinto, Maria de Lourdes Pinheiro Ruivo, José Darlon Nascimento Alves and Heráclito Eugênio Oliveira da Conceição
Energy and water dynamics are crucial for citrus development in the Eastern Amazon. This study aimed to determine the energy balance, water demand, and crop coefficient of acid lime in the northeast region of Pará. A micrometeorological tower was install...
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Thays A. Oliveira, Yuri B. Gabrich, Helena Ramalhinho, Miquel Oliver, Miri W. Cohen, Luiz S. Ochi, Serigne Gueye, Fábio Protti, Alysson A. Pinto, Diógenes V. M. Ferreira, Igor M. Coelho and Vitor N. Coelho
Cities are constantly transforming and, consequently, attracting efforts from researchers and opportunities to the industry. New transportation systems are being built in order to meet sustainability and efficiency criteria, as well as being adapted to t...
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Igor Cristian de Oliveira Vieira,Hildo Giuseppe Garcia Caldas Nunes,Denis de Pinho Sousa,Deborah Luciany Pires Costa,João Vitor de Nóvoa Pinto,Vivian Dielly da Silva Farias,Bruno Gama Ferreira,Erika de Oliveira Teixeira,Carmen Grasiela Dias Martins,Matheus Yan Freitas Silva,Paulo Jorge Jorge de Oliveira Ponte de Souza
O feijão-caupi possui grande importância socioeconômica para a população, principalmente a de baixa renda. O modelo AquaCrop foi calibrado e validado para analisar a sua eficiência na simulação do teor de água no solo, produção de biomassa e produtividad...
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