Percorrer por autor "Fernandes, S."
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- Heatsinks to Cool Batteries for Unmanned Aerial VehiclesPublication . Galvão, J.; Faria, P.; Mateus, A.; Pereira, T.; Fernandes, S.This study aims to develop several different models of heatsinks, designed to cool a vertical take-off and landing unmanned aerial vehicle (UAV) battery, through topology optimization, aimed at being manufactured through selective laser melting (SLM) technology. A battery’s temperature must be properly managed for a safe and efficient operation. The methodology developed was with the support of software to carry out several simulations which, starting from several scenarios and restrictions imposed by the small space available to accommodate these small batteries in this type of aircraft. The conception resulted in several battery thermal management systems (BTMS) models, with different applications and efficiency degrees. A relevant aspect is the topology optimization being coupled to computational thermal analysis to reduce the mass of the heatsink whilst ensuring a maximum battery temperature threshold. Together with the use of topology optimization, the SLM process was selected to manufacture the heat sinks, under conditions of geometric freedom, using several high thermal conductivity metal alloys, such as, aluminium and copper to obtain the designed models.
- Mysterious Bones Unearthed:Development of an Online Therapeuticserious Game for Children with Attention Deficit-hyperactivity DisorderPublication . Rijo, R.; Costa, P.; Bastos, D.; Bastos, D.; Matos, P.; Silva, A.; Ferrinho, J.; Almeida, N.; Oliveira, A.; Xavier, S.; Santos, S.; Oliveira, C.; Brites, S.; Martins, V.; Pereira, A.; Fernandes, S.Attention deficit-Hyperactivity Disorder is a disease that affects 3 to 5 percent of children globally. The treatment roots on medication and behavioral exercises. There are unwanted, documented, side effects of the medication, and the behavioral exercises are very demanding for children. In this context the goal of the present research was the development of a serious game for children with 6-8 years old with behavioral exercises as the basis for the action of the game, using a ludic approach. This ludic approach intends to increase the motivation for the game. The present work is part of the research project Therapy4All. The objective of the project is not to replace the traditional form of treatment, but to complement it by allowing a physician to maintain her/his patients under supervision between their regular consultations. The goalis the development of research on serious games to provide patients a better control of their symptoms more than with just traditional therapy. Our first results, with a very small sample, show encouraging improvements in the children's competencies.