150 research outputs found

    Serra: património imaterial do Tâmega e Sousa

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    Coleção Património imaterial do Tâmega e SousaEste livro faz parte de uma coleção de quatro publicações dedicadas ao património imaterial nos vales do Sousa, do Douro e do Tâmega. Esta coleção é o resultado de dois anos de levantamento no terreno e de pesquisas documentais, com a intenção de dar a conhecer a riqueza imaterial e patrimonial deste território desenhado por vales, rios e serras. Neste primeiro livro, a serra é o elemento aglutinador, com enfoque especial para a agricultura, a pastorícia e o artesanato.info:eu-repo/semantics/publishedVersio

    Influence of pressure-relief insoles developed for loaded gait (backpackers and obese people) on plantar pressure distribution and ground reaction forces

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    The aims of this study were to test the effects of two pressure relief insoles developed for backpackers and obese people on the ground reaction forces (GRF) and plantar pressure peaks during gait; and to compare the GRF and plantar pressures among normal-weight, backpackers, and obese participants. Based on GRF, plantar pressures, and finite element analysis two insoles were manufactured: flat cork-based insole with (i) corkgel in the rearfoot and forefoot (SLS1) and with (ii) poron foam in the great toe and lateral forefoot (SLS2). Gait data were recorded from 21 normal-weight/backpackers and 10 obese participants. The SLS1 did not influence the GRF, but it relieved the pressure peaks for both backpackers and obese participants. In SLS2 the load acceptance GRF peak was lower; however, it did not reduce the plantar pressure peaks. The GRF and plantar pressure gait pattern were different among the normal-weight, backpackers and obese participants.info:eu-repo/semantics/publishedVersio

    Rio: património imaterial do Tâmega e Sousa

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    Coleção Património imaterial do Tâmega e SousaEste livro faz parte de uma coleção de quatro publicações dedicadas ao património imaterial nos vales do Sousa, do Douro e do Tâmega. Esta coleção é o resultado de dois anos de levantamento no terreno e de pesquisas documentais, com a intenção de dar a conhecer a riqueza imaterial e patrimonial deste território desenhado por vales, rios e serras. Neste segundo livro, o rio é o elemento aglutinador, com enfoque para o árduo esforço dos arrais e mareantes, para as rezas, as cantigas e as festividades relacionadas com os rios do território em estudo.info:eu-repo/semantics/publishedVersio

    Automated design of microwave discrete tuning differential capacitance circuits in Si-integrated technologies

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    A genetic algorithm used to design radio-frequency binary-weighted differential switched capacitor arrays (RFDSCAs) is presented in this article. The algorithm provides a set of circuits all having the same maximum performance. This article also describes the design, implementation, and measurements results of a 0.25 lm BiCMOS 3-bit RFDSCA. The experimental results show that the circuit presents the expected performance up to 40 GHz. The similarity between the evolutionary solutions, circuit simulations, and measured results indicates that the genetic synthesis method is a very useful tool for designing optimum performance RFDSCAs

    Responsiveness and value chain in sugar-ethanol production

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    Brazil is the world’s major sugarcane producer. In 2018/19, the country will have produced about 47.34 million tons of sugar and 58.8 billion liters of ethanol. Sugar and ethanol are produced in the same production process and the definition of both quantities is pre-established to sugarcane agro-industry. The purpose of this paper is to identify how managers define the production mix of sugar-ethanol in an agro-industry and how this decision adds value to its operations. The results showed that the searched mill adds value to its production through responsiveness and flexibility while orienting the production to sugar and/or ethanol according to the most profitable market during the moment of the decision making

    Carcass study of braford males weaned at 72 or 210 days, slaughtered at fourteen months

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    O objetivo deste trabalho foi comparar as características de carcaça de machos desmamados em duas idades, aos 72 (T72) e aos 210 (T210) dias. Utilizaram-se 36 terneiros 5/8 Hereford e 3/8 Nelore, não castrados, os quais foram terminados em confinamento e abatidos aos 14 meses de idade. Não houve diferença significativa quanto ao peso de fazenda (T72=424 kg e T210=406 kg), rendimento de carcaça quente (T72=54,7% e T210=54,4%), peso de carcaça quente (T72=232 kg e T210=221 kg) e fria (T72=224 kg e T210=214 kg) entre os dois grupos. Os animais desmamados aos 72 dias apresentaram carcaça com conformação ligeiramente superior (11,8 pontos vs. 11,3 pontos) e maior percentagem de costilhar em relação aos novilhos desmamados aos 210 dias, cujos cortes dianteiro e traseiro não diferiram significativamente. Não houve diferença significativa entre as variáveis comprimento de carcaça, comprimento de perna, comprimento de braço, perímetro de braço e espessura de coxão. A espessura de gordura de cobertura não diferiu significativamente entre os dois grupos de carcaça, sendo 4,6 mm e 4,2 mm, respectivamente para T72 e T210 dias. Os resultados mostraram que animais desmamados aos 72 dias de idade apresentam carcaça comparável aos desmamados com 210 dias, com peso e acabamento dentro dos limites exigidos pelos frigoríficos.The objective of this experiment was to compare the carcass characteristics of males weaned at two ages: 72 (T72) and 210 days (T210). Thirty-six 5/8 Hereford 3/8 Nellore calves, not castrated, finished in feedlot and slaughtered at 14 months of age, were used. No significant differences were observed between treatments for final weight (T72=424 kg and T210=406 kg), dressing percentage (T72=54.7% and T210=54.4%), hot carcass weight (T72=232 kg and T210=221 kg) and cold carcass weight (T72=224 kg and T210=214 kg). T72 carcasses showed better conformation (11.8 points vs 11.3 points) and higher sidecut percentage than T210, both having similar sawcut and hindquarter percentages. No significant differences were observed for carcass, leg and arm length, arm perimeter, cushion thickness and subcutaneous fat thickness (T72=4.6 mm and T210=4.2 mm). Results demonstrate that calves weaned at 72 days of age showed similar carcasses than calves weaned at 210 days, with adequate weight and fat thickness for slaughter

    Mobility of highly qualified portuguese professionals to Europe

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    Skilled emigration has been analyzed according to two contrasting models: a) the model of the exodus that stresses the idea that more skilled individuals are forced to the exile, allowing them to get a job and a remuneration corresponding to their training; b) the model of the Diaspora that stresses the mutual benefits of intercultural exchanges opened by the circulation of academic, scientific and cultural cosmopolitan elites. This research aims to test the comprehensive power of each of these theses referencing to the various types of mobility of highly qualified Portuguese professionals to Europe in the last decade. The research strategy is suitable to the characteristics of an exploratory study. Articulating an extensive research with an in-depth analysis we seek to identify the subjectivity of the direct actors of emigration in some of its main working contexts. We use a mixed strategy which makes use of multilateral technical quantitative and qualitative data collection: questionnaire surveys; life stories and interviews with focus groups that will draft the life trajectories. Using a multiple case methodology we will describe and compare the circumstances, the modalities and the characteristics of the mobility of two types of migration of high skilled Portuguese individuals in Europe

    Single-Objective Front Optimization: Application to RF Circuit Design

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    This paper proposes a new algorithm which promotes well distributed non-dominated fronts in the parameters space when a single- objective function is optimized. This algorithm is based on ǫ-dominance concept and maxmin sorting scheme. Besides that, the paper also presents the results of the algorithm when it is used in the automated synthesis of optimum performance CMOS radiofrequency and microwave binary-weighted differential switched capacitor arrays (RFDSCAs). The genetic synthesis tool optimizes a fitness function which is based on the performance parameter of the RFDSCAs. To validate the proposed design methodology, a CMOS RFDSCA is synthesized, using a 0.25 μm BiCMOS technology.N/

    Analysis of the backpack loading efects on the human gait

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    Gait is a simple activity of daily life and one of the main abilities of the human being. Often during leisure, labour and sports activities, loads are carried over (e.g. backpack) during gait. These circumstantial loads can generate instability and increase biomechanicalstress over the human tissues and systems, especially on the locomotor, balance and postural regulation systems. According to Wearing (2006), subjects that carry a transitory or intermittent load will be able to find relatively efficient solutions to compensate its effects.info:eu-repo/semantics/publishedVersio

    Gastronomia: património imaterial do Tâmega e Sousa

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    Coleção Património imaterial do Tâmega e SousaEste livro faz parte de uma coleção de quatro publicações dedicadas ao património imaterial nos vales do Sousa, do Douro e do Tâmega. Esta coleção é o resultado de dois anos de levantamento no terreno e de pesquisas documentais, com a intenção de dar a conhecer a riqueza imaterial e patrimonial deste território desenhado por vales, rios e serras. Neste quarto e último livro, a gastronomia é o elemento aglutinador, com enfoque para um receituário com cerca de três dezenas de pratos e doces típicos do território, como o bazulaque ou verde, o capão à Freamunde, as lérias e o famoso Pão de ló de Margaride.info:eu-repo/semantics/publishedVersio
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