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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Vieira, Joana Filipa Carvalho;

    Os subprodutos da vinha são resíduos agrícolas abundantemente disponíveis em Portugal. O sector vitivinícola é um dos sectores mais representativos da economia agrícola, sendo a vinha e o olival as duas culturas permanentes dominantes em Portugal. Da atividade vitivinícola resultam várias toneladas de subprodutos entre os quais se destaca a madeira de poda de videira, o subproduto da vinha disponível em maior quantidade (massa). Os objetivos do presente trabalho consistiram na quantificação da madeira de poda de videira produzida a nível nacional (Portugal Continental) e na proposta de soluções para aproveitamento do subproduto em questão. A quantificação da madeira foi efetuada recorrendo a pesquisas realizadas junto de empresas e entidades do ramo vitivinícola. Por outro lado, a proposta de soluções de aproveitamento da madeira de poda foi feita recorrendo a exemplos estudados/implementados em Portugal e/ou noutros países, não só para este tipo de subprodutos como para outros semelhantes (como por exemplo: poda de oliveira e madeira florestal). Pelo que a presente dissertação é baseada em pesquisa e análise de dados existentes e posteriormente tratamento dos mesmos (se aplicável). Atualmente, a madeira de poda de videira representa maioritariamente uma perda de recursos e em muito dos casos acarreta para o produtor, um custo sem qualquer retorno. Para procurar soluções que permitissem conferir valor acrescentado a este subproduto da vinha, primeiramente, realizou-se um levantamento da quantidade de madeira de poda resultante das vinhas a nível nacional por NUTS II de forma a determinar a sua dispersão no território, tendo-se obtido um valor estimado de 974 mil toneladas. Seguidamente, foram estudadas três possibilidades de aproveitamento da madeira de poda: produção de Biochar, produção de biocombustíveis e produção de energia em centrais de biomassa. Para cada uma das possibilidades de aproveitamento avaliadas, foi feita uma análise da implementação de um polo industrial de conversão do subproduto num produto de valor acrescentado, tendo em conta os locais de maior produção de madeira de poda no país, as vias de transporte disponíveis e ainda o custo associado ao seu transporte. Foi ainda analisado o aproveitamento das indústrias existentes na periferia das regiões vitivinícolas de modo a avaliar a sustentabilidade do processo tanto a nível económico como ambiental. Vine by-products are agricultural residues abundantly available in Portugal. The winemaking sector is one of the most important areas of the Portuguese agriculture economy. The vineyards alongside olive groves are the two dominant permanent crops in Portugal. The winemaking activity creates several tons of by-products, among those there is the vine pruning wood, which is the biggest by-product created in this activity. The aim of the present dissertation is to quantify the available vine pruning wood at national level (Mainland Portugal) and to propose solutions for its use as a by-product. Moreover, the proposal solutions for pruning wood uses were based into studied/implemented examples in Portugal and/or in other countries, not only for this type of by-products but for similar ones (such as: olive pruning and forest wood). Therefore, the present dissertation was based on the research and analysis of existing data and the later treatment of them (if applicable). So far, vine pruning represents a great loss of resources and in most cases an unavoidable cost for the producer. In order to find solutions to add value to this by-product, surveys were carried out to determine the amount of pruning wood available at a NUTS II level. The surveys were done at the NUTS II level in order to determine their dispersal in the country. From the surveys, it was possible to estimate 974 tons of vine pruning wood available at national level. Then, three solutions for the pruning wood were studied: Biochar production, biofuel production and energy production in biomass plants. For each of the solutions, studies were carried out regarding the feasibility of the proposed processing plants to convert the by-product in an added value product. The studies analyzed the places with the greatest pruning wood production in the country, the transport routes available and the cost associated with shipping. It was also studied the use of industries near the wine regions to evaluate the sustainability of the process at both economic and environmental level.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Instituc...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Instituc...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Nunes, Sara Deolinda da Costa;

    A presente dissertação aborda a Bioeconomia enquanto estratégia económica que tem como plano de ação a utilização sustentável dos recursos renováveis para fins industriais e alimentares, garantindo simultaneamente a proteção do meio ambiente. Dado o caráter transversal da Bioeconomia esta constitui uma oportunidade única para enfrentar desafios atuais da sociedade interligados, tais como: a segurança alimentar, a escassez de recursos naturais, a dependência de recursos fósseis e as alterações climáticas, a par com um crescimento económico sustentável. Com este trabalho pretende-se compreender a Bioeconomia enquanto novo paradigma económico. É analisada a Bioeconomia na produção de recursos biológicos renováveis e na conversão dos mesmos recursos e fluxos de resíduos em produtos de valor acrescentado, tais como alimentos para consumo humano e animal, produtos de base biológica e bioenergia. Neste contexto, a investigação e a inovação são determinantes, assim como a interação entre as atuais políticas de promoção da Bioeconomia a nível da União Europeia e do mundo, de modo a fomentar as melhores práticas em questões globais em domínios como os da saúde, alterações demográficas e bem-estar da população mundial e com vista à implementação de uma política bioeconómica global. Com o trabalho, pretende-se ainda obter uma visão de como a Bioeconomia vem sendo implementada no mundo, verificando-se que vem avançando a um ritmo acelerado em muitos países europeus, bem como em alguns países americanos e asiáticos. This dissertation is about Bioeconomy as an economic strategy that aims the sustainable use of renewable resources for industrial and food purposes, while ensuring the protection of the environment. Given the cross-cutting nature of Bioeconomy, it is a unique opportunity to address today's interlinked societal challenges such as: food security, natural resources scarcity, dependence on fossil fuels and climate change, together with sustainable economic growth. The dissertation aims a better understanding of Bioeconomy as a new economic paradigm. It focuses the production of renewable biological resources and the conversion of the same resources and waste streams into value added products such as food and feed, biobased products and bioenergy. In this context, research and innovation are crucial, as well as the interaction between the current promotion policies of Bioeconomy in the European Union and in the world, in order to promote best practices in global issues such as health, demographic change and well-being of the world's population and also aiming the implementation of a global Bioeconomy strategy. The dissertation also aims to get a global picture about how Bioeconomy is being implemented worldwide. It has gained special emphasis in many European countries, as well as in some American and Asian countries.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Instituc...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Instituc...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Nunes, Fábio Emanuel Santos;

    As alterações climáticas são um tema de extrema importância nos dias de hoje sendo um tópico que preocupa a população mundial. Alguns fatores humanos são responsáveis por este fenómeno, tais como a queima de combustíveis fósseis, nomeadamente a queima de petróleo, carvão ou gás que liberta CO2 e N2O para a atmosfera, o uso de fertilizantes, aumento da atividade pecuária e causas associadas à desflorestação. O impacto cada vez mais acentuado do CO2 atmosférico, assim como da temperatura, tem desencadeado um avanço de fenómenos naturais desde secas e precipitação intensa, até à evidência de perda nutricional de proteína, ferro (Fe) e zinco (Zn) em diversos vegetais, incluindo as leguminosas como soja (Glycine max. L.) e feijão (Phaseolus vulgaris L.). Em particular, as populações de países em desenvolvimento, que tenham grande dependência nas leguminosas como fontes de nutrientes, poderão vir a ser especialmente impactadas devido ao CO2 elevado. Neste projeto estudaram-se duas leguminosas, a soja cv. Thorne e o cv. Papo de rola. Realizaram-se dois ensaios: o primeiro a 400 ppm (CO2 ambiental), e o segundo a 800 ppm (valores previstos para 2050) e, em cada um destes, as plantas foram crescidas na presença e na ausência de Fe. As plantas foram mantidas em câmaras de fitoclima com temperatura, humidade e CO2 controlado. Após a recolha de dados e análise estatística percebeu-se que na soja existe um aumento do peso seco a alto CO2 (+ 52,09 % em folhas e + 60,47 % em raízes). Também se verifica que as amostras de soja e feijão que que cresceram com Fe desenvolvem-se mais (+ 67,49 % em peso seco das folhas e + 60,70 % em raízes de soja; + 91,11 % em folhas e + 77,95 % em raízes de feijão). No entanto, houve reduções na atividade da redutase férrica radicular (94,79 % em soja e 72,19 % para feijão), no teor de clorofila foliar (75,42 % em soja e 73,39 % em feijão) e na taxa fotossintética (90,46 % em soja e 58,13 % em feijão) quando comparadas com as plantas crescidas a CO2 ambiental e na ausência de Fe. Nas análises nutricionais, verifica-se maior teor proteico (55,32 %), retenção mineral (especialmente Fe e Zn), assim como, maior teor de ácidos e açúcares a CO2 ambiental com Fe. Em síntese, a soja e o feijão crescidos com Fe indicam melhores condições de sobrevivência para a planta, sendo que o maior crescimento a alto CO2 não determina necessariamente maior teor nutricional. Climate change is a topic of great importance these days being a subject of concern to the world´s population. Several human factors are responsible for this event, such as the burning of fossil fuels, namely of oil, coal or gas -that release CO2 and N2O to the atmosphere, the use of fertilizers, increased livestock production and deforestation. The increasing impact of atmospheric CO2, as well as temperature has triggered an advance of natural phenomena from droughts and intense precipitation to the evidence of nutritional loss of protein, iron (Fe) and zinc (Zn) in several plants, including legumes such as soybean (Glycine max. L.) and common bean (Phaseolus vulgaris L.). Populations in developing countries which are highly reliant on legumes as main sources of nutrients may be especially vulnerble in the future due to elevated CO2. Here, two legume grains, soybean cv. Thorne and common bean cv. Papo de rola were analyzed. Plants were grown in growth chambers, with controlled temperature, humidity and CO2. Two experiments were carried out, the first one at 400 ppm (environmental CO2) and the second at 800 ppm (values predicted for 2050). In each experiment, a set of plants grew with Fe and another set without this mineral. After data collection and statistical analysis it was observed that in soybean there is an increased dry weight at high CO2 (52.09 % in leaves and 60.47 % in roots). It is also verified that the samples of soybean and beans that grew with Fe had higher biomass (67.49 % in leaves and 60.70 % in roots of soybean; 91.11 % in leaves and 77.95 % in roots of common beans). However, there was a reduction in the activity of the root iron reductase (94.79 % in soybeans and 72.19 % in beans), in leaf chlorophyll content (75.42 % in soybean and 73.39 % in bean) and photosynthetic rate (90.46 % in soybean and 58.13 % in beans) when compared to plants that grew at ambient CO2 and in the absence of Fe. With regards to the nutritional analysis, a higher protein concentration (55.32 %), mineral retention, especially Fe and Zn, was verified, as well as a higher content of organic acids and sugars at ambient CO2 with Fe. In summary, Fe promotes better survival conditions for soybean and bean, and the higher growth at high CO2 does not reflect in higher nutritional content.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Instituc...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Instituc...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Nunes, Bárbara Sofia Ribeiro Fagulha;

    O número de talhos em Portugal tem vindo a decrescer há vários anos, devido à crescente influência das grandes redes de supermercados, como o Continente e o Pingo Doce. Além de oferecerem uma vasta gama de carnes embaladas, estes supermercados disponibilizam igualmente, na sua grande maioria, serviços de atendimento personalizados, como sucede nos talhos tradicionais de rua. Com a recente recessão económica, temos assistido à perda de poder de compra por parte de diversos consumidores, que optam, cada vez mais, por hard discounts, como o LIDL e o Aldi. A entrada de novos players no mercado português, como a Mercadona, o líder de mercado espanhol, aumenta ainda mais a pressão e faz-nos querer desenvolver a área de negócio do talho, de forma a potenciar os seus resultados, tornando-o líder de mercado. Deste modo, este estudo tem como objetivo analisar a importância do Marketing no desenvolvimento do talho e contribuir para a alteração das perceções negativas de que o talho do grupo SONAE tem sido alvo. Através da análise do contexto interno e externo, conseguimos perceber que o Pingo Doce é líder de mercado no talho, com insígnia com maior quota e também com o maior Net Promoter Score (NPS) e é também percecionado como supermercado com as melhores promoções e com o melhor talho. Contudo, a Sonae tem vindo a melhorar os seus indicadores. O crescente foco e investimento numa estratégia de Marketing têm aumentado o crescimento do talho a longo prazo. The number of butchers has been declining for several years, largely due to the growing influence of large supermarket chains such as Continente and Pingo Doce. In addition to offering a wide range of packaged meats, these supermarkets also offer a personalized service, as we can see in traditional street butchers. Due to the recent economic recession, we have witnessed losses of purchasing power from several consumers, who increasingly choose supermarkets with hard discounts, such as LIDL and Aldi. The entry of new players in the Portuguese market, such as Mercadona, the Spanish market leader, increases the pressure even more and makes us want to develop the butcher's business area, in order to maximize its results, making it the leader in Marketplace. Thus, this study aims to analyze the importance of Marketing in the development of the butchery and contribute to changing the negative perceptions that SONAE´s butcher shop group has been targeting. Through the analysis of the internal and external context, we are able to perceive that Pingo Doce is the market leader in the butcher shop, with the highest share brand and also the highest Net Promoter Score (NPS) and is also perceived as a supermarket with the best promotions and the best butcher. However, Sonae has been improving its indicators. The growing focus and investment in a Marketing strategy has increased the butcher's longterm growth.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Instituc...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Instituc...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Vieira, Joana Filipa Carvalho;

    Os subprodutos da vinha são resíduos agrícolas abundantemente disponíveis em Portugal. O sector vitivinícola é um dos sectores mais representativos da economia agrícola, sendo a vinha e o olival as duas culturas permanentes dominantes em Portugal. Da atividade vitivinícola resultam várias toneladas de subprodutos entre os quais se destaca a madeira de poda de videira, o subproduto da vinha disponível em maior quantidade (massa). Os objetivos do presente trabalho consistiram na quantificação da madeira de poda de videira produzida a nível nacional (Portugal Continental) e na proposta de soluções para aproveitamento do subproduto em questão. A quantificação da madeira foi efetuada recorrendo a pesquisas realizadas junto de empresas e entidades do ramo vitivinícola. Por outro lado, a proposta de soluções de aproveitamento da madeira de poda foi feita recorrendo a exemplos estudados/implementados em Portugal e/ou noutros países, não só para este tipo de subprodutos como para outros semelhantes (como por exemplo: poda de oliveira e madeira florestal). Pelo que a presente dissertação é baseada em pesquisa e análise de dados existentes e posteriormente tratamento dos mesmos (se aplicável). Atualmente, a madeira de poda de videira representa maioritariamente uma perda de recursos e em muito dos casos acarreta para o produtor, um custo sem qualquer retorno. Para procurar soluções que permitissem conferir valor acrescentado a este subproduto da vinha, primeiramente, realizou-se um levantamento da quantidade de madeira de poda resultante das vinhas a nível nacional por NUTS II de forma a determinar a sua dispersão no território, tendo-se obtido um valor estimado de 974 mil toneladas. Seguidamente, foram estudadas três possibilidades de aproveitamento da madeira de poda: produção de Biochar, produção de biocombustíveis e produção de energia em centrais de biomassa. Para cada uma das possibilidades de aproveitamento avaliadas, foi feita uma análise da implementação de um polo industrial de conversão do subproduto num produto de valor acrescentado, tendo em conta os locais de maior produção de madeira de poda no país, as vias de transporte disponíveis e ainda o custo associado ao seu transporte. Foi ainda analisado o aproveitamento das indústrias existentes na periferia das regiões vitivinícolas de modo a avaliar a sustentabilidade do processo tanto a nível económico como ambiental. Vine by-products are agricultural residues abundantly available in Portugal. The winemaking sector is one of the most important areas of the Portuguese agriculture economy. The vineyards alongside olive groves are the two dominant permanent crops in Portugal. The winemaking activity creates several tons of by-products, among those there is the vine pruning wood, which is the biggest by-product created in this activity. The aim of the present dissertation is to quantify the available vine pruning wood at national level (Mainland Portugal) and to propose solutions for its use as a by-product. Moreover, the proposal solutions for pruning wood uses were based into studied/implemented examples in Portugal and/or in other countries, not only for this type of by-products but for similar ones (such as: olive pruning and forest wood). Therefore, the present dissertation was based on the research and analysis of existing data and the later treatment of them (if applicable). So far, vine pruning represents a great loss of resources and in most cases an unavoidable cost for the producer. In order to find solutions to add value to this by-product, surveys were carried out to determine the amount of pruning wood available at a NUTS II level. The surveys were done at the NUTS II level in order to determine their dispersal in the country. From the surveys, it was possible to estimate 974 tons of vine pruning wood available at national level. Then, three solutions for the pruning wood were studied: Biochar production, biofuel production and energy production in biomass plants. For each of the solutions, studies were carried out regarding the feasibility of the proposed processing plants to convert the by-product in an added value product. The studies analyzed the places with the greatest pruning wood production in the country, the transport routes available and the cost associated with shipping. It was also studied the use of industries near the wine regions to evaluate the sustainability of the process at both economic and environmental level.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Instituc...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Instituc...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Nunes, Sara Deolinda da Costa;

    A presente dissertação aborda a Bioeconomia enquanto estratégia económica que tem como plano de ação a utilização sustentável dos recursos renováveis para fins industriais e alimentares, garantindo simultaneamente a proteção do meio ambiente. Dado o caráter transversal da Bioeconomia esta constitui uma oportunidade única para enfrentar desafios atuais da sociedade interligados, tais como: a segurança alimentar, a escassez de recursos naturais, a dependência de recursos fósseis e as alterações climáticas, a par com um crescimento económico sustentável. Com este trabalho pretende-se compreender a Bioeconomia enquanto novo paradigma económico. É analisada a Bioeconomia na produção de recursos biológicos renováveis e na conversão dos mesmos recursos e fluxos de resíduos em produtos de valor acrescentado, tais como alimentos para consumo humano e animal, produtos de base biológica e bioenergia. Neste contexto, a investigação e a inovação são determinantes, assim como a interação entre as atuais políticas de promoção da Bioeconomia a nível da União Europeia e do mundo, de modo a fomentar as melhores práticas em questões globais em domínios como os da saúde, alterações demográficas e bem-estar da população mundial e com vista à implementação de uma política bioeconómica global. Com o trabalho, pretende-se ainda obter uma visão de como a Bioeconomia vem sendo implementada no mundo, verificando-se que vem avançando a um ritmo acelerado em muitos países europeus, bem como em alguns países americanos e asiáticos. This dissertation is about Bioeconomy as an economic strategy that aims the sustainable use of renewable resources for industrial and food purposes, while ensuring the protection of the environment. Given the cross-cutting nature of Bioeconomy, it is a unique opportunity to address today's interlinked societal challenges such as: food security, natural resources scarcity, dependence on fossil fuels and climate change, together with sustainable economic growth. The dissertation aims a better understanding of Bioeconomy as a new economic paradigm. It focuses the production of renewable biological resources and the conversion of the same resources and waste streams into value added products such as food and feed, biobased products and bioenergy. In this context, research and innovation are crucial, as well as the interaction between the current promotion policies of Bioeconomy in the European Union and in the world, in order to promote best practices in global issues such as health, demographic change and well-being of the world's population and also aiming the implementation of a global Bioeconomy strategy. The dissertation also aims to get a global picture about how Bioeconomy is being implemented worldwide. It has gained special emphasis in many European countries, as well as in some American and Asian countries.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Instituc...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Instituc...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Nunes, Fábio Emanuel Santos;

    As alterações climáticas são um tema de extrema importância nos dias de hoje sendo um tópico que preocupa a população mundial. Alguns fatores humanos são responsáveis por este fenómeno, tais como a queima de combustíveis fósseis, nomeadamente a queima de petróleo, carvão ou gás que liberta CO2 e N2O para a atmosfera, o uso de fertilizantes, aumento da atividade pecuária e causas associadas à desflorestação. O impacto cada vez mais acentuado do CO2 atmosférico, assim como da temperatura, tem desencadeado um avanço de fenómenos naturais desde secas e precipitação intensa, até à evidência de perda nutricional de proteína, ferro (Fe) e zinco (Zn) em diversos vegetais, incluindo as leguminosas como soja (Glycine max. L.) e feijão (Phaseolus vulgaris L.). Em particular, as populações de países em desenvolvimento, que tenham grande dependência nas leguminosas como fontes de nutrientes, poderão vir a ser especialmente impactadas devido ao CO2 elevado. Neste projeto estudaram-se duas leguminosas, a soja cv. Thorne e o cv. Papo de rola. Realizaram-se dois ensaios: o primeiro a 400 ppm (CO2 ambiental), e o segundo a 800 ppm (valores previstos para 2050) e, em cada um destes, as plantas foram crescidas na presença e na ausência de Fe. As plantas foram mantidas em câmaras de fitoclima com temperatura, humidade e CO2 controlado. Após a recolha de dados e análise estatística percebeu-se que na soja existe um aumento do peso seco a alto CO2 (+ 52,09 % em folhas e + 60,47 % em raízes). Também se verifica que as amostras de soja e feijão que que cresceram com Fe desenvolvem-se mais (+ 67,49 % em peso seco das folhas e + 60,70 % em raízes de soja; + 91,11 % em folhas e + 77,95 % em raízes de feijão). No entanto, houve reduções na atividade da redutase férrica radicular (94,79 % em soja e 72,19 % para feijão), no teor de clorofila foliar (75,42 % em soja e 73,39 % em feijão) e na taxa fotossintética (90,46 % em soja e 58,13 % em feijão) quando comparadas com as plantas crescidas a CO2 ambiental e na ausência de Fe. Nas análises nutricionais, verifica-se maior teor proteico (55,32 %), retenção mineral (especialmente Fe e Zn), assim como, maior teor de ácidos e açúcares a CO2 ambiental com Fe. Em síntese, a soja e o feijão crescidos com Fe indicam melhores condições de sobrevivência para a planta, sendo que o maior crescimento a alto CO2 não determina necessariamente maior teor nutricional. Climate change is a topic of great importance these days being a subject of concern to the world´s population. Several human factors are responsible for this event, such as the burning of fossil fuels, namely of oil, coal or gas -that release CO2 and N2O to the atmosphere, the use of fertilizers, increased livestock production and deforestation. The increasing impact of atmospheric CO2, as well as temperature has triggered an advance of natural phenomena from droughts and intense precipitation to the evidence of nutritional loss of protein, iron (Fe) and zinc (Zn) in several plants, including legumes such as soybean (Glycine max. L.) and common bean (Phaseolus vulgaris L.). Populations in developing countries which are highly reliant on legumes as main sources of nutrients may be especially vulnerble in the future due to elevated CO2. Here, two legume grains, soybean cv. Thorne and common bean cv. Papo de rola were analyzed. Plants were grown in growth chambers, with controlled temperature, humidity and CO2. Two experiments were carried out, the first one at 400 ppm (environmental CO2) and the second at 800 ppm (values predicted for 2050). In each experiment, a set of plants grew with Fe and another set without this mineral. After data collection and statistical analysis it was observed that in soybean there is an increased dry weight at high CO2 (52.09 % in leaves and 60.47 % in roots). It is also verified that the samples of soybean and beans that grew with Fe had higher biomass (67.49 % in leaves and 60.70 % in roots of soybean; 91.11 % in leaves and 77.95 % in roots of common beans). However, there was a reduction in the activity of the root iron reductase (94.79 % in soybeans and 72.19 % in beans), in leaf chlorophyll content (75.42 % in soybean and 73.39 % in bean) and photosynthetic rate (90.46 % in soybean and 58.13 % in beans) when compared to plants that grew at ambient CO2 and in the absence of Fe. With regards to the nutritional analysis, a higher protein concentration (55.32 %), mineral retention, especially Fe and Zn, was verified, as well as a higher content of organic acids and sugars at ambient CO2 with Fe. In summary, Fe promotes better survival conditions for soybean and bean, and the higher growth at high CO2 does not reflect in higher nutritional content.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Instituc...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Instituc...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Nunes, Bárbara Sofia Ribeiro Fagulha;

    O número de talhos em Portugal tem vindo a decrescer há vários anos, devido à crescente influência das grandes redes de supermercados, como o Continente e o Pingo Doce. Além de oferecerem uma vasta gama de carnes embaladas, estes supermercados disponibilizam igualmente, na sua grande maioria, serviços de atendimento personalizados, como sucede nos talhos tradicionais de rua. Com a recente recessão económica, temos assistido à perda de poder de compra por parte de diversos consumidores, que optam, cada vez mais, por hard discounts, como o LIDL e o Aldi. A entrada de novos players no mercado português, como a Mercadona, o líder de mercado espanhol, aumenta ainda mais a pressão e faz-nos querer desenvolver a área de negócio do talho, de forma a potenciar os seus resultados, tornando-o líder de mercado. Deste modo, este estudo tem como objetivo analisar a importância do Marketing no desenvolvimento do talho e contribuir para a alteração das perceções negativas de que o talho do grupo SONAE tem sido alvo. Através da análise do contexto interno e externo, conseguimos perceber que o Pingo Doce é líder de mercado no talho, com insígnia com maior quota e também com o maior Net Promoter Score (NPS) e é também percecionado como supermercado com as melhores promoções e com o melhor talho. Contudo, a Sonae tem vindo a melhorar os seus indicadores. O crescente foco e investimento numa estratégia de Marketing têm aumentado o crescimento do talho a longo prazo. The number of butchers has been declining for several years, largely due to the growing influence of large supermarket chains such as Continente and Pingo Doce. In addition to offering a wide range of packaged meats, these supermarkets also offer a personalized service, as we can see in traditional street butchers. Due to the recent economic recession, we have witnessed losses of purchasing power from several consumers, who increasingly choose supermarkets with hard discounts, such as LIDL and Aldi. The entry of new players in the Portuguese market, such as Mercadona, the Spanish market leader, increases the pressure even more and makes us want to develop the butcher's business area, in order to maximize its results, making it the leader in Marketplace. Thus, this study aims to analyze the importance of Marketing in the development of the butchery and contribute to changing the negative perceptions that SONAE´s butcher shop group has been targeting. Through the analysis of the internal and external context, we are able to perceive that Pingo Doce is the market leader in the butcher shop, with the highest share brand and also the highest Net Promoter Score (NPS) and is also perceived as a supermarket with the best promotions and the best butcher. However, Sonae has been improving its indicators. The growing focus and investment in a Marketing strategy has increased the butcher's longterm growth.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Instituc...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositório Instituc...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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