Hydrodynamic and sediment fluxes through the inlets of the Ria Formosa

Tese de dout., Ciências do Mar, da Terra e do Ambiente (Ciências do Mar-Oceanografia Física), Faculdade de Ciências e Tecnologia, Univ. do Algarve, 2011

Experimental study of the macrobenthic colonisation and secondary production in the artificial reefs of Algarve coast

Tese de dout., Ciências do Mar, Faculdade de Ciências do Mar e do Ambiente, Universidade do Algarve, 2010

Estratégias de controlo da poluição das águas subterrâneas pelos nitratos de origem agrícola

Tese de dout., Ciências Agrárias, Faculdade de Engenharia de Recursos Naturais, Univ. do Algarve, 2003

Aplicação de realidade aumentada para o ensino de sólidos geométricos

Soluções de realidade virtual e aumentada têm vindo a ser utilizadas no segmento de ensino explorando diferentes modalidades de interação de forma a proporcionar ao aluno acesso efetivo de informação em situações de experiências imersivas em tempo real. Na internet podemos encontrar variadíssimas aplicações educacionais, que nos ajudam a todos, desde as crianças em idade escolar até a profissionais de todas as áreas, proporcionando o estudo mais interativo, divertido e mais envolvente. Neste artigo, onde assumimos que o contexto de ensino é propício para a experimentação de novos modelos de ensino/aprendizagem, apresentamos uma aplicação educacional na área da geometria com o objetivo de potencializar a transferência de conhecimento, salientando as características dimensionais dos sólidos.

Atitudes dos enfermeiros perante morte cerebral e transplantação de órgãos

Dissertação de mest., Psicologia (Psicologia da Saúde), Faculdade de Ciências Humanas e Sociais, Univ. do Algarve, 2010

Special issue on the 6th Portuguese Conference on Automatic Control (Controlo 2004)

The Portuguese Association of Automatic Control (APCA) organizes, every two years, the Portuguese Conference on Automatic Control. Its 6th edition (Controlo 2004) was held from 7 to 9 June, 2004 at the University of Algarve, Faro, Portugal, by its Centre for Intelligent Systems (CSI). CONTROLO 2004 International Program Committee (IPC) has decided, from the very start, to ask for submission of full draft papers, to encourage special sessions with well-defined themes, and for student papers. All papers have been reviewed by three separate reviewers. From the 122 contributions submitted, the IPC selected 89 oral papers, 20 special session papers, and 5 student posters. CONTROLO 2004 Technical Programme consists of 33 oral sessions (5 being special sessions) and 1 poster session, covering a broad range of control topics, both from theory and applications. The programme also includes three plenary lectures, given by leading experts in the field, Professors Ricardo Sanz, João Miranda Lemos and Rolf Isermann.

Special section on intelligent control systems and signal processing

The IFAC International Conference on Intelligent Control Systems and Signal Processing (ICONS 2003) was organized under the auspices of the recently founded IFAC Technical Committee on Cognition and Control, and it was the first IFAC event specifically devoted to this theme. Recognizing the importance of soft-computing techniques for fields covered by other IFAC Technical Committees, ICONS 2003 was a multi-track Conference, co-sponsored by four additional Technical Committees: Computers for Control, Optimal Control, Control in Agriculture, and Modelling, Identification and Signal Processing. The Portuguese Society for Automatic Control (APCA) hosted ICONS 2003, which was held at the University of Algarve, Faro, Portugal.

Remote data acquisition system of environmental data

The implementation of an accurate and reliable data acquisition system is the first step to develope a good control system. This data acquisition should provide valuable data readings, not only for control purposes but also for applications in different research areas.

Temperature, pH, and conductivity control of the nutrient solution of an hydroponic greenhouse

One of the aspects of modern agriculture is characterised by a culture without soil (hydroponic cultures). These culture techniques are identified by possessing automatic control systems to control the nutrient solution. In first hydroponic cultures this control was accomplished by “on- off” analog controllers that applied a single control law implemented in hardware. Therefore, the changes of the control law resulted in the change of all interface electronics. In digital control implemented by micro-controllers the alteration of such control law is easily performed by changing only a computer program, leaving untouched all the interface hardware. In this way, the use and substitution of the control strategy is improved, as well, the use of advanced control strategies.

Supervised training approach using spiking neural networks

One of the basic aspects of some neural networks is their attempt to approximate as much as possible their biological counterparts. The goal is to achieve a simple and robust network, easy to understand and able of simulating the human brain at a computational level. Recently a third generation of neural networks (NN) [1], called Spiking Neural Networks(SNN) was appeared. This new kind of networks use the time of a electrical pulse, or spike, to encode the information. In the first and second generation of NN analog values are used in the communication between neurons.

A soft-computing approach for non-invasive temperature estimation

The domain of thermal therapies applications can be improved with the development of accurate non-invasive timespatial temperature models. These models should represent the non-linear tissue thermal behaviour and be capable of tracking temperature at both time-instant and spatial position. If such estimators exist then efficient controllers for the therapeutic instrumentation could be developed, and the desired safety and effectiveness reached.

Prediction of the solar radiation using RBF neural networks and ground-to-sky images

In this study, Artificial Neural Networks are applied to multistep long term solar radiation prediction. The networks are trained as one-step-ahead predictors and iterated over time to obtain multi-step longer term predictions. Auto-regressive and Auto-regressive with exogenous inputs solar radiationmodels are compared, considering cloudiness indices as inputs in the latter case. These indices are obtained through pixel classification of ground-to-sky images. The input-output structure of the neural network models is selected using evolutionary computation methods.

Training neuro-fuzzy models using evolution based algorithms

The normal design process for neural networks or fuzzy systems involve two different phases: the determination of the best topology, which can be seen as a system identification problem, and the determination of its parameters, which can be envisaged as a parameter estimation problem. This latter issue, the determination of the model parameters (linear weights and interior knots) is the simplest task and is usually solved using gradient or hybrid schemes. The former issue, the topology determination, is an extremely complex task, especially if dealing with real-world problems.

Um escritor algarvio do século XVIII em Ayamonte: Damião António de Lemos Faria e Castro

Damião António de Lemos Faria e Castro foi o mais importante escritor algarvio do século XVIII. Viveu entre 1715 e 1789, em Portimão e em Faro, e foi autor de duas obras de grande dimensão: Aula da nobreza lusitana, em sete tomos (entre 1749 e 1761), e História Geral de Portugal e suas Conquistas, em vinte tomos (o primeiro dos quais aparecido em 1786 e os últimos, já póstumos, em 1806). Em ambas recorre amiúde a autores espanhóis, demonstrando a integração e a unidade fundamental da cultura ibérica. Além disso, escrevia correntemente em língua castelhana. Mas Damião esteve também vinculado muito especialmente a Ayamonte. Com efeito, durante cerca de dois anos – 1749/1750 – esteve refugiado em Ayamonte, porque perseguido pela justiça portuguesa. E nesta cidade andaluza da foz do Guadiana compôs alguns opúsculos que mandou imprimir em Sevilha. Outros escritos seus de Ayamonte ficaram manuscritos, como seja a Relación Geográfico-Historica de algunos terrenos de la Frontera de Portugal, y España, desde Ayamonte hasta Badajoz.

Jovens em risco: projectos de vida e motivação para a frequência do ensino profissional

Dissertação de mest., Psicologia da Educação (Necessidades Educativas Especiais), Faculdade de Ciências Humanas e Sociais, Univ. do Algarve, 2011