41 documents found, page 1 of 5
Assessment of the thermal comfort of a masonry building - numerical study
Carneiro, Ana; Gonçalves, Pedro; Saraiva, Rafael; Oliveira, Daniel V.; Martins, Luís Barreiros; Teixeira, J. Carlos; Rodrigues, NelsonThe need to preserve masonry buildings in earthquake-prone areas leads to the analysis of their behavior when subjected to seismic actions. When studying different strengthening solutions, it is important to reassess the behavior of the building that has been reinforced regarding its initial resistance performance. In parallel, energy studies should be carried out to understand if the reinforcement solution bei...
Numerical evaluation and experimental validation of fluid flow behavior within ...
Carvalho, Violeta Meneses; Gonçalves, Inês M.; Rodrigues, Nelson; Sousa, Paulo; Pinto, Vânia; Minas, Graça; Kaji, Hirokazu; Shin, Su RyonBy combining biomaterials, cell culture, and microfluidic technology, organ-on-a-chip (OoC) platforms have the ability to reproduce the physiological microenvironment of human organs. For this reason, these advanced microfluidic devices have been used to resemble various diseases and investigate novel treatments. In addition to the experimental assessment, numerical studies of biodevices have been performed aim...
Cooperative Projects to Share Good Practices towards More Effective Sustainable...
Dino, Giovanna; Mancini, Susanna; Lasagna, Manuela; Bonetto, Sabrina; De Luca, Domenico; Pereira, Maria; Baptista, EstherThe supply of raw materials is a global challenge to be addressed; themes such as “sustain-ability”, “responsibility”, and “eco-compatibility” represent the cornerstones for proceeding towards a “wise” management of georesources. According to the United Nations’ SDGs, the economic development of countries must go hand in hand with the improvement of their environmental, health, and social sustainability. From t...
A system for the generation of in-car human body pose datasets
Silva, João Pedro Borges Araújo Oliveira; Queirós, Sandro; Oliveira, Bruno; Torres, Helena Daniela Ribeiro; Rodrigues, Nelson; Coelho, VictorWith the advent of autonomous vehicles, detection of the occupants’ posture is crucial to tackle the needs of infotainment interaction or passive safety systems. Generative approaches have been recently proposed for human body pose in-car detection, but this type of approaches requires a large training dataset for a feasible accuracy. This requirement poses a difficulty, given the substantial time required to a...
Numerical simulation of the flow inside a horizontal closed refrigerated displa...
Silva, João; Guedes, Vitor; Teixeira, S. F. C. F.; Lobarinhas, Pedro M.; Teixeira, J. Carlos; Rodrigues, NelsonA refrigerated display cabinet is a device often used to preserve the products contained inside while enabling the costumer to have a view to the products stored. The main objective of this work was to investigate, using the ANSYS Fluent software, the airflow in a horizontal closed refrigerated display cabinet to better understand the fluid flow behavior in its interior. The turbulent airflow and non-isothermal...
Modular data acquisition architecture for thin-film sensors surfaces
Rodrigues, Nelson; Lima, José; Rodrigues, Pedro João; Carvalho, José Augusto; Laranjeira, Jorge; Maidana, Wellington; Leitão, PauloThin-film sensors surfaces are becoming popular to collect data in several specific and complex processes, namely plastic injection or metal stamping, allowing the digitization of such processes through the use of Internet of Things technologies. A particular challenge in such thin-film sensors surfaces is the data acquisition and signal conditioning system, which implementation is complex due to the characteri...
Automated generation of synthetic in-car dataset for human body pose detection
Borges, João; Oliveira, Bruno; Torres, Helena Daniela Ribeiro; Rodrigues, Nelson; Queirós, Sandro Filipe Monteiro; Shiller, Maximilian; Coelho, VictorIn this paper, a toolchain for the generation of realistic synthetic images for human body pose detection in an in-car environment is proposed. The toolchain creates a customized synthetic environment, comprising human models, car, and camera. Poses are automatically generated for each human, taking into account a per-joint axis Gaussian distribution, constrained by anthropometric and range of motion measuremen...
Empowering humans in a cyber-physical production system: human-in-the-loop pers...
Costa, David; Pires, Flávia; Rodrigues, Nelson; Barbosa, José; Igrejas, Getúlio; Leitão, PauloIn the Industry 4.0 context, humans are taking upnew roles in Cyber-Physical Systems (CPS) since it was realizedthat they constitute the most flexible part of an automated system.With this new reality, humans are becoming integral parts ofCPS, entering in the realm of the Human-in-the-Loop of Cyber-Physical Systems (HiLCPS). In this paper, the challenges andtechnologies for the integration of humans in CPS envi...
A lightweight dynamic monitoring of operational indicators for a rapid strategi...
Leitao, Paulo; Rodrigues, Nelson; Ferreira, Adriano; Pagani, Arnaldo; Petrali, Pierluigi; Barbosa, JoséIn the era of the 4th industrial revolution, manufacturing companies are digitally transforming their businesses, processes and factories to address the current market demands. Among several opportunities, the dynamic monitoring of strategical indicators assume a crucial importance for the rapid awareness of the adaptation and optimization of a manufacturing process. In particular, the analysis of the effect th...
Top-down human pose estimation with depth images and domain adaptation
Rodrigues, Nelson; Torres, Helena Daniela Ribeiro; Oliveira, Bruno; Borges, João; Queirós, Sandro Filipe Monteiro; Mendes, José A.; Fonseca, Jaime C.In this paper, a method for estimation of human pose is proposed, making use of ToF (Time of Flight) cameras. For this, a YOLO based object detection method was used, to develop a top-down method. In the first stage, a network was developed to detect people in the image. In the second stage, a network was developed to estimate the joints of each person, using the image result from the first stage. We show that ...