99 research outputs found
Ocorrência de granulitos empobrecidos nas porções basais da Nappe de Empurrão Socorro-Guaxupé
Geoquímica das rochas granulíticas do complexo Juiz de Fora, segmento central da faixa ribeira
A new staggered algorithm for thermomechanical coupled problems
This study presents a new staggered coupled strategy to deal with thermomechanical problems. The proposed strategy is based on the isothermal split methodology, i.e. the mechanical problem is solved at constant temperature and the thermal problem is solved for a fixed configuration. Nevertheless, the procedure for this strategy is divided into two phases within each increment: the prediction and the correction phases, while the interchange of information is performed on both. This allows taking advantage of automatic time-step control techniques, previously implemented for the mechanical problem, which is the main feature that distinguishes it from the classical strategies. The aim of the proposed strategy is to reduce the computational cost without compromising the accuracy of the results. The new coupling strategy is validated using three numerical examples, comparing its accuracy and performance with the ones obtained with the classical (commonly employed) strategies for solving thermomechanical problems. Moreover, the influence of the time-step size on the accuracy is analysed. The results indicate that the proposed strategy presents accuracy close to the one obtained with the implicit coupling algorithm, while the computational cost is only slightly higher than the one required by the explicit strategy. (C) 2017 Elsevier Ltd. All rights reserved.The authors gratefully acknowledge the financial support of the Portuguese Foundation for Science and Technology (FCT) under projects P2020-PTDC/EMS-TEC/0702/2014 (POCI-01-0145-FEDER-016779) and P2020-PTDC/EMS-TEC/6400/2014 (POCI-01-0145-FEDER-016876) by UE/FEDER through the program COMPETE 2020. The second author is also grateful to the FCT for the Postdoctoral grant SFRH/BPD/101334/2014.info:eu-repo/semantics/publishedVersio
Cross-sectional Survey of Hantavirus Infection, Brazil
A cross-sectional serosurvey was conducted to assess the proportion of persons exposed to hantaviruses in a virus-endemic area of the state of Minas Gerais, Brazil. Findings of this study suggested the presence of >1 hantaviruses circulating in this region causing hantavirus pulmonary syndrome, mild disease, or asymptomatic infection
Intake, performance and nutrient digestibility of sheep fed sugarcane treated and ensiled with calcium oxide or urea
Current and Future Prospects of Nitro-compounds as Drugs for Trypanosomiasis and Leishmaniasis
Eficiências Reprodutiva e Produtiva em Vacas das Raças Gir, Holandês e Cruzadas Holandês x Zebu
PRESERVATION OF PRIMARY FOREST CHARACTERISTICS DESPITE FRAGMENTATION AND ISOLATION IN A FOREST REMNANT FROM VIÇOSA, MG, BRAZIL1
SEMEADURA DIRETA COM TRANSPOSIÇÃO DE SERAPILHEIRA COMO METODOLOGIA DE RESTAURAÇÃO ECOLÓGICA1
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