19 resultados para MRIO
em SAPIENTIA - Universidade do Algarve - Portugal
Resumo:
É sempre um prazer e um desafio ler os livros de Mário Zambujal. Desde o marco que foi o sucesso do seu primeiro romance, Crónica dos bons malandros, que o deslocou da referência como jornalista (que nunca deixou de ser) e o colocou no rol dos nossos autores de literatura, a sua produção tem continuado a dar-nos bons momentos.
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Passei os olhos pelas estantes e reparei num conjunto de livros, deitados (e não na vertical como os outros dessa prateleira, que é como eu os ponho quando me falta espaço numa qualquer letra, o C, neste caso). Não eram muitos (apenas 9, num universo bem mais extenso). Entortei a cabeça, para ler os títulos, e lá estava o nome de Mário Cláudio, autor sobre o qual aqui nunca tinha escrito. A cor da lombada de um deles, em bordeaux, com letras brancas, destacava-se das outras (brancas ou pretas) e eu lembrava-me bem do livro, lido recentemente (2014): Retrato de Rapaz.
Resumo:
A generalidade dos problemas de ordem prática no domínio do dimensionamento das estruturas incluem variáveis discretas. Os métodos matemáticos tradicionais apresentam dificuldades na procura dos óptimos globais em problemas não lineares discretos. Os algoritmos genéticos constituem uma heurística eficaz na optimização de sistemas estruturais que envolvem variáveis discretas e contínuas. No presente trabalho, descreve-se uma metodologia que visa a optimização da forma geométrica da secção, do dimensionamento e colocação das armaduras em vigas de betão armado, com recurso a algoritmos genéticos. Apresenta-se um exemplo de aplicação da metodologia proposta.
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Tese dout., Biologia, Universidade do Algarve, 2006
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Tese dout., Ciências do Mar, Universidade do Algarve, 2006
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Dissertação de mest., Agricultura Sustentável, Faculdade de Engenharia de Recursos Naturais, Universidade do Algarve, 2007
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Most simultaneous localisation and mapping (SLAM) solutions were developed for navigation of non-cognitive robots. By using a variety of sensors, the distances to walls and other objects are determined, which are then used to generate a map of the environment and to update the robot’s position. When developing a cognitive robot, such a solution is not appropriate since it requires accurate sensors and precise odometry, also lacking fundamental features of cognition such as time and memory. In this paper we present a SLAM solution in which such features are taken into account and integrated. Moreover, this method does not require precise odometry nor accurate ranging sensors.
Resumo:
The goal of the project "SmartVision: active vision for the blind" is to develop a small and portable but intelligent and reliable system for assisting the blind and visually impaired while navigating autonomously, both outdoor and indoor. In this paper we present an overview of the prototype, design issues, and its different modules which integrate a GIS with GPS, Wi-Fi, RFID tags and computer vision. The prototype addresses global navigation by following known landmarks, local navigation with path tracking and obstacle avoidance, and object recognition. The system does not replace the white cane, but extends it beyond its reach. The user-friendly interface consists of a 4-button hand-held box, a vibration actuator in the handle of the cane, and speech synthesis. A future version may also employ active RFID tags for marking navigation landmarks, and speech recognition may complement speech synthesis.
Resumo:
The Tourism activity, due to its own characteristics, causes high environmental impact and its development should be influenced by the environmental characteristics of each region. The Information Systems, mainly those which represent the geographical information, will permit the development of a design, allowing the Decision-Maker the consult, the management and the presentation of decision schemes based on the defined measures of the Tourism Planning of a region. As the information associated with this design should be real and update, the Internet should be used as a means of access to the information of the region. The design presents the schemes associated to each decision, offering competitive advantages to the Decision-Makers involved in the decision process, since it is possible to evaluate, foresee and control the future environmental impacts of Tourism.
Resumo:
The environment is one of the greatest concerns of humankind. Nowadays, the activities which improve or destroy it must be assessed and controlled by efficient means which should permit the control of environmental impact caused by the development of these activities. This document presents an information system implementation, as a Decision Support system, allowing the Decision Maker to evaluate, foresee and control the future environmental impact of Tourism through consultation, the management and the presentation of decision schemes based on defined measures of a regional tourism planning.
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Tese de dout., Ciências Económicas e Empresariais, Faculdade de Economia, Univ. do Algarve, 2012
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Tese de dout., História Contemporânea, Faculdade de Ciências Humanas e Sociais, Univ. do Algarve, 2007
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Human-robot interaction is an interdisciplinary research area which aims at integrating human factors, cognitive psychology and robot technology. The ultimate goal is the development of social robots. These robots are expected to work in human environments, and to understand behavior of persons through gestures and body movements. In this paper we present a biological and realtime framework for detecting and tracking hands. This framework is based on keypoints extracted from cortical V1 end-stopped cells. Detected keypoints and the cells’ responses are used to classify the junction type. By combining annotated keypoints in a hierarchical, multi-scale tree structure, moving and deformable hands can be segregated, their movements can be obtained, and they can be tracked over time. By using hand templates with keypoints at only two scales, a hand’s gestures can be recognized.
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Dissertação de mest., Engenharia Eléctrica e Electrónica (Tecnologias de Informação e Telecomunicações), Instituto Superior de Engenharia, Univ. do Algarve, 2011
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Dissertação de mest., Energias Renováveis e Gestão de Energia, Faculdade de Ciências e Tecnologia, Univ. do Algarve, 2011