Lista de Projetos

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Glow Discharge Detectors (GDD) offer a low cost solution for the detection of THz and millimeter waves with high sensitivity and fastresponse at room temperature. This work aims to contribute with a detailed study on the role of frequency dependent resonant effects inthe detection mechanism of GDDs and present an optimal design for detection. It has a laboratory component (TD-THz spectroscopy andCW High Frequency THz measurements) supported by theoretical and numerical analysis of THz wave propagation in these devices.A research field, started in the 70s, which consisted in using glow discharge lamps to detect THz and millimeter waves has becomerelevant again in the international arena due to the high interest in developing THz technologies. By forming the discharge in a gas keptat high pressure between two leads, the lamp generates light and a plasma is formed inside the device which drives it to be sensitive,and consequently to detect, THz and/or millimeter waves. Our research not only support this, but using the METU-Ankara Turkeyhome-built THz pulsed spectrometers we also see frequency resonant effects as the THz pulse passes through the plasma. We believethat these are due to the structure of the plasma glow discharge region and the physical structure of the cathode and anode. Our goal isto understand the role of these resonant effects in the detection mechanism of the glow discharge lamp. We intend to investigate this byusing the time-domain THz spectroscopy systems as well as CW high frequency THz measurements, available at the laboratories in

O estudo enquadra-se no processo de revisão do modelo de apoio financeiro às artes do MC/SEC/DGArtes, que se pretende o mais participado possível, e visa identificar posicionamentos a partir dos contributos expressos pelas entidades artísticas, sobre um conjunto alargado de dimensões, no quadro e a partir da experiência de relação com o referido modelo. O universo é constituído pelas entidades profissionais, coletivas e singulares, registadas na plataforma de gestão dos apoios da DGArtes. A metodologia é extensiva quantitativa, de inquérito por questionário, com questões fechadas, pré-codificadas, com tratamento estatístico, para caraterização das entidades participantes, e com perguntas abertas para recolha de contributos, com codificação a posteriori e análise de conteúdo. O questionário é de resposta autoadministrada, aplicado online na plataforma Qualtrics.

The ongoing post-doctoral research on the Modern Movement in Sub-Saharan Africa aims to recover a vision of modern architecture as a formal system still in force today, connecting local culture with global influence [SFRH/BPD/117157/2016]. It focuses on Portuguese-Angolan tropical architecture's potential, highlighting Castro Rodrigues, Simões de Carvalho and Vieira da Costa. These three authors' legacy represents Portuguese-Angolan architecture's potential, underlining this singular heritage's iconic, tectonic and programmatic qualities and its political, social, disciplinary and ideological motivations. However, the fight for independence and the subsequent conflicts in Angola interrupted this impulse-momentum, recognizing modernity as an unfinished project. Despite recognizing the fragility of these buildings without maintenance for more than fifty years, the majority still show a surprising kind of resilience. The proposed project methodology highlights the constructive and formal elements that solve innovatively and efficiently the site's adaptability. It aims to contribute to the urgency of elaborating sustainable proposals in the framework of maintaining and re-using modern housing complexes in the 21st century.