6 documents found, page 1 of 1
5 Anos das agressões sexuais: análise da prevalência e fatores do risco
Smyk, B.; Ramalho, M.; Mendonça, Ricardo; Teixeira, Helena M.; Carreira, Carla
Powered smart textile-based exoskeleton for human support movement
Ferreira, C.; Fertuzinhos, A.; Silva, R.; Ramalho, M.; Vale, B.; Silva, J.; Costa, L.; Oliveira, C.; Ramôa, A.; Aguiar, F.; Pilastri, A.; Matta, A.Industrial environments require people’s physical efforts related to excessive force, poor posture, and repetitive tasks that increase the risk of developing musculoskeletal diseases. Due to the high prevalence of postural complaints and consequent global health burdens, a significant demand has been conducted to build and implement powered lower and upper limb devices for human enhancement, considering the wor...
2D PCA-Based localization for mobile robots in unstructured environments
Carreira, Fernando; Christo, C.; Valerio, D.; Ramalho, M.; Cardeira, C.; Calado, João Manuel Ferreira; Oliveira, P.In this paper a new PCA-based positioning sensor and localization system for mobile robots to operate in unstructured environments (e. g. industry, services, domestic ...) is proposed and experimentally validated. The inexpensive positioning system resorts to principal component analysis (PCA) of images acquired by a video camera installed onboard, looking upwards to the ceiling. This solution has the advantage...
O inventário nacional do património geológico: abordagem metodológica e resultados
Brilha, J. B.; Alcala, L.; Almeida, A.; Araújo, A.; Azeredo, A.; Azevedo, M.; Barriga, F.; Silveira, A. Brum; Cabral, J.; Cachão, M.; Caetano, P.A existência de um inventário nacional de património geológico é fundamental para se poderem implementar estratégias de geoconservação. Este trabalho apresenta a metodologia usada no desenvolvimento do mais completo inventário de geossítios, realizado até ao momento em Portugal, assim como os principais resultados obtidos. O inventário vai integrar o Sistema de Informação do Património Natural e o Cadastro Naci...
Ionometric and fricke electron and gamma dosimetry for the implementation of wa...
Ferreira, P.; Jacob, K.; Rosat, M.; Galhós, R.; Serrai, F.; Oliveira, S.; Teixeira, Nuno; Ramalho, M.Application of radiation as an efficient process to reduce the microbial levels in materials (food, environmental, health care products). Irradiation of organic and inorganic compounds with electron and gamma rays can modify the micro organisms, depending on the energy, dose rate, and others variables related to the irradiation conditions. Anthropogenic sources have been responsible for introducing high levels ...
Failure modes and effects analysis (FMEA) applied to two modern radiotherapy ce...
Teixeira, Nuno; Cunha, Gilda; Moreno, L.; Pontes, M.; Rosa, M.; Jacob, K.; Cardoso, I.; Ferreiras, P.; Ramalho, M.; Carvoeiras, P.; Galhós, R.FMEA is a quality improvement technique, generally applied to industry, that can provide an efficient, structured approach to assessing interconnected system failures. It is a bottom up analytical process, which identifies process hazards. According to this technique, each potential failure mode in the system is analysed to determine its effect and to classify it according to its severity. The objective is to i...