Caracterização do espaço poroso em rochas por esferas máximas exatas

Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência da ComputaçãoNeste trabalho, uma modificação ao algoritmo de esferas máximas (MB) é proposto. Essa abordagem recebe o nome de esferas máximas exatas (EMB), por utilizar os raios exatos ao invés de duas aproximações. Tal mudança, traz consequências para o resultado final, definindo de forma mais detalhada a estrutura interna do espaço poroso, gerando cinquenta por cento mais poros e gargantas. Dessa forma, a rede gerada de modo exato é comparada a rede original, em características básicas e nas simulações de escoamento monofásico, obtendo-se resultados bem correlacionados e em mesma escala de grandeza para ambas, apesar de diferentes. Muitas otimizações para paralelização e dados comprimidos são propostas e o algoritmo exato, mesmo processando mais esferas, é de duas a seis mais rápido para todos os casos de estudo.In this work a maximum balls (MB) modification is presented. This novel approach receives the name of exact maximum balls (EMB) because it uses one exact radius instead of two approximations. Therefore, there are consequences to the generated pore network which is found out to define the pore space with at least fifty porcent more detail, that is, pores and throats. That way, the exact pore network is compared with the original and it is discovered that there is a strict correlation between their results and that these are always of the same magnitude, although different. Also, a lot of optimizations to process compressed data and to allow data parallelization are shown and the EMB pore network extraction is, in every test case, consistently faster than MB. The obtained speedup was from two up to six times

Determining Priority and Sustainable Strategies in Agribusiness Management using an Analytic Hierarchy Process model

Publisher Copyright: © 2023, ANPAD - Associacao Nacional de Pos-Graduacao e Pesquisa em Administracao. All rights reserved.The aim of this study was to analyze which business sustainability factors are adopted in the strategic process of the agricultural sector using the model named Strategic Planning for Business Sustainability (PEPSE). To achieve the proposed aim, the PEPSE model was applied to the Analytic Hierarchy Process multicriteria decision tool. During the research, the farm adopted sanitary measures due to the COVID-19 pandemic, which compromised access to managers and, consequently, data collection. Based on the application of a model developed especially for the identification and formulation of sustainable strategies, the study identified how sustainability is considered in the strategic planning of an agricultural unit in Brazil and the strategies adopted to deal with environmental variables. It was possible to understand how the stakeholders influence the planning of the farm and the variables and priority strategies for the environmental positioning of the farm. Thus, the main limitation of the research was the time and the collection of information, therefore, only an analysis of the external scenario of the farm was carried out.publishersversionpublishe

Avaliação de brise-soleil responsivo para sombreamento de câmara climática

Neste trabalho realizou-se a avaliação por simulação computacional das condições de conforto térmico no interior de uma câmara climática localizada na Universidade Tecnológica Federal do Paraná, em Curitiba, proporcionadas por diferentes estratégias de sombreamento, incluindo o conceito responsivo, em três diferentes regiões do território brasileiro. Os resultados permitiram concluir que, para as condições analisadas neste estudo de caso (sem sistema de proteção solar, brise soleil fixo, brise-soleil sazonal e brise-soleil responsivo), a estratégia de sombreamento responsivo se mostrou a mais eficiente e proporcionou um maior aumento do conforto em relação às demais.info:eu-repo/semantics/publishedVersio

Sulfate reduction and alterability of sulfur species in sediments of an estuary with irregular hydrological regime

The irregular hydrological regime in Patos Lagoon estuary has been suggested as having a distinctive influence on sulfur speciation in sediments. We performed an investigation for different prolonged hydrological conditions focusing on the distribution of sulfides (acid volatile sulfide (AVS), chromium reducible sulfide (CRS), and Free-S2-) in sediment cores from salt marsh and non-vegetated shallow zone. Significant differences in sulfides content and distribution between the different hydrological periods were found. The predominance of more reducing conditions was observed during the freshwater period. It reflects a higher total reducible inorganic sulfur (TRIS) content in this period, with a great accumulation of AVS in sediments (> 100 mg kg-1). In the maximum salinity period, more oxidizing conditions prevailed, which significantly decreased the concentrations of metastable sulfides. The intense bioirrigation process exerts control over sulfide formation and distribution, which is as important as that exerted by the variations of the hydrological regime

Transistor sizing analysis of regular fabrics

This paper presents an extensive transistor sizing analysis for regular transistor fabrics. Several evaluation methods have been exploited, such as DC simulations, ring oscillators and single-gate open chain structures. Different design aspects are addressed taking into account stacked transistors, cells with drive strengths and circuit critical paths. The performance degradation of using regular fabrics in comparison to standard cells is naturally expected, but it is quite important to evaluate the dimension of such impact. The results were obtained for predictive PTM45 CMOS parameters, and the conclusions can be easily extrapolated to other technology nodes and fabrication processesPostprint (published version

Raleio de cachos próximo ao ‘véraison’ nas variedades ‘Montepulciano’ e ‘Cabernet Franc’ em região de elevada altitude do sul do Brasil

The objective of this study was to evaluate the effects of pre- and post-veraison cluster thinning on the physicochemical characteristics of Montepulciano and Cabernet Franc grape varieties grown in regions 900 m above sea level (ASL) in Santa Catarina, southern region of Brazil. The experiment was conducted in two commercial vineyards, Montepulciano vineyard located at 28º12'58''S, 50º06'45''W, 1,185 m ASL during the 2007, 2008 and 2009 vintages; and Cabernet Franc vineyard located at 28°15'20"S, 49°56'60"W, 1,284 m ASL, during the 2010 and 2011 vintages. Treatments consisted on cluster thinning at three distinct moments for both varieties: during veraison, about 15 days pre-veraison and 15 days post-veraison. For Montepulciano, when cluster thinning is performed post-veraison, there is a reduction in cluster mass and a slight reduction on the acidity of grapes. For Cabernet Franc, when cluster thinning is performed during veraison, there is an increase in total soluble solids of grapes. In general, cluster thinning is recommended two weeks pre- or post-veraison for Montepulciano and Cabernet Franc wine grapes produced in southern Brazilian highlands.O presente trabalho teve como objetivo avaliar o efeito do raleio de cachos próximo ao ‘véraison’ sobre as características físico-químicas das variedades ‘Montepulciano’ e ‘Cabernet Franc’ cultivadas em regiões acima de 900m de altitude no estado de Santa Catarina, Sul do Brasil. Os ensaios foram conduzidos em vinhedos comerciais da variedade ‘Montepulciano’ coordenadas 28º12'58''S, 50º06'45''W, 1,185 m de altitude durante as safras 2007, 2008 e 2009; e da variedade ‘Cabernet Franc’ coordenadas 28°15'20"S, 49°56'60"W, 1,284 m de altitude durante as safras 2010 e 2011. Os tratamentos consistiram no raleio de cachos realizado em três momentos para ambas as variedades: Na ‘véraison’', cerca de 15 dias antes da ‘véraison’ e 15 dias após 'véraison'. Para ‘Montepulciano’, quando o raleio de cachos é realizado após a 'véraison' há uma redução da massa do cacho, bem como uma redução na acidez das uvas. Para ‘Cabernet Franc’ quando o raleio de cachos é realizado durante a 'véraison' há um aumento no teor de sólidos solúveis. Em geral, o raleio de cachos pode ser indicado durante as duas semanas que antecedem ou sucedem a virada de cor das bagas para as variedades ‘Montepulciano’ e ‘Cabernet Franc’ produzidos nas regiões de altitude do sul do Brasil

Composição fenólica do vinho de uvas 'Cabernet Sauvignon' submetidas a diferentes épocas de desfolha na região Sul do Brasil

The objective of this work was to evaluate the phenolic composition of wine from 'Cabernet Sauvignon' (Vitis vinifera) grapes subjected to leaf removal management at different timing, in a high-altitude region. The experiment was carried out in the 2015 and 2016 vintages, in a vineyard located in the municipality of São Joaquim, in the state of Santa Catarina, Brazil. The treatments consisted of different periods of leaf removal in the clusters, at five phenological stages ‒ full bloom, buckshot berries, pea-sized berries, veraison, and 15 days after veraison ‒, and of a control without leaf removal. At harvest, 50 kg of each treatment were collected for winemaking. The contents of gallic acid, catechin, p-coumaric acid, vanillic acid, resveratrol, quercetin, rutin, and kaempferol were evaluated. The results showed the importance of leaf removal before veraison, to obtain wine with a higher concentration of phenolic compounds, which favors wine quality. The leaf removal management promotes the increase of gallic acid, vanillic acid, p-coumaric acid, resveratrol, quercetin, and kaempferol in wine. The early leaf removal before veraison results in increases in vanillic acid, p-coumaric acid, resveratrol, quercetin, and kaempferol. The wine made from grapes not subjected to leaf removal shows higher values of catechin and rutin. O objetivo deste trabalho foi avaliar a composição fenólica de vinho elaborado com uvas 'Cabernet Sauvignon' (Vitis vinifera) submetidas ao manejo de desfolha em várias épocas, em região de elevada altitude. O experimento foi conduzido nas safras de 2015 e 2016, em um vinhedo localizado no munícipio de São Joaquim, no estado de Santa Catarina, Brasil. Os tratamentos consistiram de diferentes épocas de desfolhas na região dos cachos, em cinco estádios fenológicos ‒ plena florada, baga-chumbinho, baga-ervilha, mudança de cor das bagas (véraison) e 15 dias após o véraison ‒, e de um controle sem desfolha. Na fase da colheita, 50 kg de uvas de cada tratamento foram colhidos para a elaboração do vinho. Avaliaram-se as concentrações de ácido gálico, catequina, ácido p-cumárico, ácido vanílico, resveratrol, quercetina, rutina e campferol. Os resultados evidenciaram a importância do manejo precoce da desfolha antes do estágio de véraison, para a obtenção de vinho com maior conteúdo de compostos fenólicos, benéficos à qualidade do vinho. O manejo da desfolha promove o aumento de ácido gálico, ácido vanílico, ácido p-coumárico, resveratrol, quercetina e campferol no vinho. A desfolha precoce antes do estágio de véraison resulta em aumento de ácido vanílico, ácido p-coumárico, resveratrol, quercetina e campferol. O vinho elaborado com uvas não submetidas ao manejo da desfolha apresenta valores superiores de catequina e rutina

Satisfação dos clientes em relação aos serviços prestados pelos ginásios e health clubs de Setúbal

info:eu-repo/semantics/publishedVersio

SARS-CoV-2 infection with bilateral intralabyrinthine hemorrhage

A 47-year-old woman presented with the complaint of sudden hearing loss associated with vertigo. Serological testing was positive for IgM and negative for IgG COVID-19 antibodies, with no other associated factors. Magnetic resonance imaging of the brain showed bilateral intralabyrinthine hemorrhage