Tempo e Narrativa Não-Linear: conceção de projeto audiovisual

Trabalho de projeto apresentado à Escola Superior de Comunicação Social como parte dos requisitos para obtenção de grau de mestre em Audiovisual e Multimédia.O cinema e a literatura são artes que consistem por si só em transmissores bastante flexíveis e influentes no que diz respeito à divulgação de significados, mostrando-se bastante eficientes nos seus conceitos ou a revolucionar ideias. São, portanto, os meios adequados à exploração da narrativa não-linear, possibilitando enorme liberdade a quem pretende estudar os seus conceitos e analisar qual o melhor caminho a seguir. Com o desejo de averiguar como este tema é colocado em prática, bem como trazer novos contributos, optou-se pelo desenvolvimento de um guião cinematográfico onde se pudessem implementar os conceitos estudados e, assim, entender de forma esclarecedora o mecanismo de todo o processo de escrita de uma narrativa estruturada numa ordem não-cronológica. Ao dividir o presente trabalho de projeto em três momentos distintos possibilita que seja encontrada uma coerência antes de alcançar a fase do guião cinematográfico desenvolvido. Numa primeira fase, o foco estará sobretudo no quadro teórico, ou seja, será contextualizado todo o tema do projeto, apresentando os principais conceitos acerca da organização de uma narrativa e da união entre cinema e tempo. Ainda na primeira fase do projeto, a concentração está no formato de narrativa cujos princípios serão empregues no projeto final, ou seja, a narrativa não – linear. Neste caso, o estudo de uma representação cinematográfica contemporânea de não-linearidade considera se fundamental antes do processo de escrita. Por fim, no terceiro segmento do trabalho, são clarificadas todas as decisões tomadas em relação ao guião cinematográfico desenvolvido, quer acerca do seu enredo e organização, quer acerca da linha temporal narrativa pela qual se optou. Tratando-se de um tema oportuno no atual contexto audiovisual nacional, pretende se que o projeto contribua de forma útil para o progresso da indústria audiovisual, incentivando a criação e a escrita de conceitos e ideias originais.ABSTRACT: Cinema and literature are arts that consist in very flexible and influential components to disseminate meanings, proving themselves to be very efficient in their concepts or in revolutionizing ideas. They are, therefore, the best way to explore non-linear narrative, allowing all the freedom to those who intend to study its concepts and analyze the best way forward. To find out how to put this theme into practice, as well as to bring new contributions, it was decided to develop a screenplay where the studied concepts could be implemented and understand the mechanisms of the entire process of writing a narrative structured in a non-chronological order. By dividing the present project work into three distinct moments, it allows to find a coherence before reaching the stage of the developed screenplay. In a first phase, the entire theme of the project will be contextualized and the main concepts related to the organization of a narrative and the union between cinema and time will be analyzed. Still in the first phase of the project, the concentration is on the narrative format combined with the principles employed in the final project, that is, a non-linear narrative. In this case, studying a contemporary cinematographic representation of non-linearity is fundamental before the writing process. Finally, in the third segment of the project, all decisions related to the developed script are clarified, whether about its plot and organization, or the narrative timeline chosen. Since this is a relevant theme in the current national audiovisual context, it is intended that the project may contribute to the progress of the audiovisual industry, encouraging the creation and the writing of original concepts and ideas.N/

Analysis of new indicators for fault detection in grid connected PV systems for BIPV applications

Tese de mestrado integrado em Engenharia da Energia e do Ambiente, apresentada à Universidade de Lisboa, através da Faculdade de Ciências, 2014Neste trabalho apresentamos um novo procedimento para deteção automática de falhas em sistemas fotovoltaicos (PV) ligados à rede. A maioria dos métodos de diagnóstico para deteção de falhas em sistemas PV já conhecidos são consumidores de tempo e precisam de equipamento caro. De forma a evitar completamente o uso de modelação e simulação do sistema PV no processo de deteção de falhas, nós definimos dois novos indicadores de corrente e voltagem, NRc e NRv, respetivamente, no lado DC do inversor do sistema PV. Este método é baseado na avaliação desses novos indicadores. Foram definidos limites para esses indicadores de forma a ter em conta a configuração do sistema PV: número de módulos PV incluídos em série e em paralelo que formam o PV array. A definição desses limites para os indicadores de voltagem e corrente têm que ser adaptados ao sistema PV específico a supervisionar e um período de treino é recomendado de forma a garantir um diagnóstico correto e reduzir assim a probabilidade de falsas falhas detetadas. Um estudo de simulações foi feito em MatLab e usando informação monitorizada pelo inversor, piranómetros, termopares e células de referência instaladas no sistema PV conectado à rede localizado no Centro de Desenvolvimento das Energias Renováveis (CDER), Algéria. O método proposto é simples mas eficaz na deteção das falhas principais de um sistema PV e foi experimentalmente validado e demonstrou a sua eficácia na deteção de falhas presentes em aplicações conectadas à rede.In this work we present a new procedure for automatic fault detection in grid connected photovoltaic (PV) systems. Most diagnostic methods for fault detection of PV systems already known are time consuming and need expensive hardware. In order to completely avoid the use of modeling and simulation of the PV system in the fault detection procedure we defined two new current and voltage indicators, NRc and NRv respectively, in the DC side of the inverter of the PV system. This method is based on the evaluation of these indicators. Thresholds for these indicators are defined taking into account the PV system configuration: Number of PV modules included in series and parallel interconnection to form the PV array. The definition of these thresholds for the voltage and current indicators must be adapted to the specific PV system to supervise and a training period is recommended to ensure a correct diagnosis and reduce the probability of false faults detected. A simulation study was carried using MatLab and the data used was monitored by the inverter, pyranometers, thermocouples and reference cells installed in a grid connected PV system located in the Centre de Développement des Energies Renouvelables (CDER), Algeria. The proposed method is simple but effective detecting the main faults of a PV system and was experimentally validated and has demonstrated its effectiveness in the detection of main faults present in grid connected applications

Processo integrado para gestão de serviços TI

Mestrado em Tecnologia e Gestão de Sistemas de Informação na Escola Superior de Tecnologia e Gestão do Instituto Politécnico de Viana do CasteloA gestão e governação de serviços em sistemas de informação pretende alinhar as estratégias da área de negócio e da área de TI. As frameworks e os standards existentes, facilitam este alinhamento, visando redução de custos, geração de valor, controlo eficiente de processos, aumento na performance do negócio e alinhamento com boas práticas de mercado. Neste trabalho de projeto são consideradas e analisadas várias frameworks e standards e é proposto um processo integrado de condução de um projeto TI no seu ciclo de vida. Este processo pretende-se de fácil adoção e facilitador do comprometimento e responsabilização de todos os intervenientes em atingir os objetivos da empresa com base em serviços de TI.IT service management and IT governance has alignment between business strategy and information technology strategy as the main goal. Existing IT frameworks and standards in this matter can help achieving this alignment, by trying to reduce costs, creating value, controlling processes efficiently, improving business performance and aligning with best practices. In this document, after considering and analysing several frameworks and standards, it is presented an end- to end process for all IT project management lifecycle. This process is intended to be easily adopted and to facilitate commitment and responsibility among all project stakeholders to meet company’s goals based on IT services

Neural Network–Based Sensitivity Analysis of Summertime Convection over the Continental United States

Although land–atmosphere coupling is thought to play a role in shaping the mean climate and its variability, it remains difficult to quantify precisely. The present study aims to isolate relationships between early morning surface turbulent fluxes partitioning [i.e., evaporative fraction (EF)] and subsequent afternoon convective precipitation frequency and intensity. A general approach involving statistical relationships among input and output variables, known as sensitivity analysis (SA), is used to develop a reduced complexity metamodel of the linkage between EF and convective precipitation. Two additional quantities characterizing the early morning convective environment, convective triggering potential (CTP) and low-level humidity (HIlow) deficit, are included. The SA approach is applied to the North American Regional Reanalysis (NARR) for June–August (JJA) conditions over the entire continental United States, Mexico, and Central America domain. Five land–atmosphere coupling regimes are objectively characterized based on CTP, HIlow, and EF. Two western regimes are largely atmospherically controlled, with a positive link to CTP and a negative link to HIlow. The other three regimes occupy Mexico and the eastern half of the domain and show positive links to EF and negative links to HIlow, suggesting that both surface fluxes and atmospheric humidity play a role in the triggering of rainfall in these regions. The regimes associated with high mean EF also tend to have high sensitivity of rainfall frequency to variations in EF. While these results may be sensitive to the choice of dataset, the approach can be applied across observational, reanalysis, and model datasets and thus represents a potentially powerful tool for intercomparison and validation as well as for characterizing land–atmosphere interaction regimes

Production of enzymatic extracts for aquafeeds by solid-state fermentation with Aspergillus ibericus of winery and olive mill wastes

[Excerpt] Introduction The replacement of fishmeal by plant ingredients in aquafeeds imposed new formulation strategies to overcome some nutritional restrictions associated with these alternative ingredients. Thus, supplementation of plant-based diets with feed additives, as exogenous enzymes and antioxidants compounds, has recently attracted increasing interest to improve feed utilization and to promote animal health. Solid state fermentation (SSF) of agro-industrial wastes has a high potential for the production of these additives, being a practical, economical, and environmentally-friendly process. Olive mill and winery wastes have valuable compounds that may be valorized thought SSF and that may be used as additives for aquafeeds. This study was conducted to optimize the production of non-starch carbohydrases through the SSF of the olive mill and winery wastes and to test its efficacy to improve the release of pentoses during digestion of a plant-based diet in European seabass.[...]Work supported by FCT PhD grant SFRH/BD/131219/2017, SFRH/BDP/114942/2016, IJFCT-POCI 01-0145-FEDER-030377 and MAR-02.01.01-FEAMP-0111info:eu-repo/semantics/publishedVersio

Process of ontology construction for the development of an intelligent system for the organization and retrieval of knowledge in biodiversity – SISBIO

This work describes the ontology construction process for the development of an Intelligent System for the Organization and Retrieval of Knowledge in Biodiversity – SISBIO. The system aims at the production of strategic information for the biofuel chain Two main methodologies are used for the construction of the ontologies: knowledge engineering and ontology engineering. The first one consists of extracting and organizing the biofuel specialists´ knowledge, and ontology engineering is used to represent the knowledge through indicative expressions and its relations, developing a semantic network of relationships.Applications in Artificial Intelligence - Ontologies and Intelligent WebRed de Universidades con Carreras en Informática (RedUNCI

Improved lignocellulolytic enzyme production and antioxidant extraction using solid-state fermentation of olive pomace mixed with winery waste

Olive pomace is characterized by its low nutritional value and high phenolic content, which hinders its direct use as animal feed, fertilizer, or as a substrate in bioprocesses such as solidstate fermentation (SSF). A possible strategy for bioprocessing olive pomace by SSF is the mixture of olive mill wastes with other wastes produced in the same region, such as winery wastes. This may improve the production of bioactive compounds like enzymes and antioxidant phenolics. A simplexcentroid design was used to evaluate the use of olive mill and winery wastes alone or in combination as a substrate for SSF with Aspergillus niger and Aspergillus ibericus. Synergistic effects of combinations of crude olive pomace (COP), exhausted olive pomace (EOP), vine trimming shoots (VTS), and exhausted grape marc (EGM) were observed in the production of xylanases, cellulases, glucosidases, and in the variation in total phenolics and antioxidant activity of SFF extracts. A multiple response optimization was carried out, leading to the following optimal mixture of substrates: for A. niger, 23% (w/w) COP, 30% EGM, 33% VTS, 14% EOP; for A. ibericus, 30% EGM, 36% VTS, 34% EOP. The scaleup to tray bioreactor with optimal substrate made it possible to achieve the maximum xylanase, cellulase, and glucosidase production of 189.1 ± 26.7, 56.3 ± 2.1 and 10.9 ± 0.8 U/g, respectively. The antioxidant activity of fermented wastes was also improved 2.2fold as compared with unfermented wastes. Thus, a combination of olive mill and winery wastes in SSF is a potential strategy to increase their value and to develop a circular strategy in these industries. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd.José Manuel Salgado was supported by grant CEB/N2020 – INV/01/2016 from Project ‘BIOTECNORTE – Underpinning Biotechnology to foster the north of Portugal bioeconomy’ (NORTE-01-0145-FEDER-000004). This study was supported by SPO3 project, reference POCI-010145-FEDER-030377, funded by European Regional Development Fund (ERDF) and Portuguese Foundation for Science and Technology (FCT), by the InovFeed project, reference MAR-02.01.01- FEAMP-0111. This study was supported by the FCT under the scope of the strategic funding of UID/BIO/04469/2019 unit and by the BioTecNorte operation (NORTE-01-0145- FEDER-000004) funded by the ERDF under the scope of North 2020 – Northern Regional Operational Program. Helena Fernandes and Carolina Castro were supported by PhD grant SFRH/BD/131219/2017 and post-doctoral grant SFRH/BDP/114942/2016, funded by the Portuguese Foundation for Science and Technology (FCT), respectivelyinfo:eu-repo/semantics/publishedVersio