509 research outputs found

    Characterization and modeling of fiber reinforced concrete for structural applications in beams and plates

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    Sonnet

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    Sonnet

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    Fire Fly

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    Evaluation of test methods used to characterize fiber reinforced cementitious composites

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    This paper describes an investigation of fiber reinforced cementitious composites in terms of their behavior under tensile and flexural loading. Flexural testing and subsequent derivation of the tensile stress-deformation response from the flexural test data are preferred in the assessment of the tensile properties of Fiber Reinforced Cement Composites (FRCC) over the direct measurement of the tensile behavior because of the more convenient test setup and ease of specimen preparation. Three and four-point bending tests and round determinate panel test were carried out to evaluate the flexural response of FRCC. The assumptions made in the inverse analysis on the formation of cracking suggested in many standardized evaluation methods and established correlation methods have a strong influence on the results of the conversion from flexure to tension. In this paper, the formation of cracking and crack development have been quantitatively documented using a digital image correlation (DIC) system to investigate the validity of the commonly made assumptions

    Gameanalyticsapp: projeto de aplicativo para estudo de anatomia humana utilizando analítica de aprendizagem para jogos

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    TCC (graduação) - Universidade Federal de Santa Catarina. Campus Araranguá. Tecnologias da Informação e ComunicaçãoO uso de tecnologias modernas para aplicações Web em conjunto com boas práticas no desenvolvimento de software permite criar uma base de código com qualidade e com potencial de escalabilidade para adição de funcionalidades durante o ciclo de desenvolvimento de software. Este trabalho de conclusão de curso tem como objetivo o desenvolvimento de uma base de código utilizando tecnologias Web baseadas em aplicações do tipo single-page e melhores práticas no desenvolvimento de software, tais como padrões de projeto (design patterns). Utilizando como base o projeto do EducaAnatomia3D (2020), desenvolveu-se uma estrutura para uma aplicação móvel onde o jogo sério poderá expandir em termos de possíveis funcionalidades futuras de forma rápida e escalável. Além disso a coleta de informações a respeito da sessão de estudo foi incorporada no projeto possibilitando explorar técnicas de analítica de aprendizagem e visualização dos dados através de painéis de controlo (dashboards). Dentro deste contexto, os resultados preliminares do projeto e desenvolvimento de um aplicativo intitulado GameAnalyticsApp são apresentados neste trabalho e disponíveis em uma url para acesso via web browser para testes durante o ciclo de desenvolvimento do software

    Experimental Study of Neuropeptide Containing Nerve Fibres

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    Ozone and stratospheric height waves for opposite phases of the QBO

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    The stratospheric quasi-biennial oscillation (QBO) provides an important source of interannual variations in the Northern Hemisphere. O'sullivan and Salby (1990) related extra-tropical eddy transport with the phase of the tropical QBO. When the tropical wind is easterly, the zero wind line is shifted into the winter hemisphere. Enhanced wave activity in middle latitudes acts to weaken the polar vortex. When the tropical wind is in the westerly phase the situation reverses. Heights at 30 mb and ozone configurations are contrasted in this paper for these two QBO phases. When the winter vortex deforms due to the amplification of planetary waves 1 and 2, extends westward and equatorward, the complementary band of low vorticity air spirals in toward the pole from lower latitudes. Sometimes, these planetary waves break (Juckes and McIntyre, 1987) and an irreversible mixing of air takes place between high and mid-latitudes. Global ozone patterns, as obtained form satellite observations, appear to be affected by planetary wave breaking (Leovy et al. 1985). This mixing results on regions with uniform ozone and potential vorticity. In the Southern Hemisphere (SH), Newman and Randel (1988) using Total Ozone Mapping Spectrometer (TOMS) data and the NMC analyses have found strong spatial correlation between the October mean temperature in the lower stratosphere and total ozone for the 1979 through 1986 years. Recently Nogues-Paegle et al.(1992) analyzed SH ozone and height data from 1986 to 1989. They found that leading empirical orthogonal functions (EOFs) for both ozone and 50 mb heights exhibit zonal wave 1 and 2 and that the correlations between ozone and 50 mb principal components (PCs) are high. The results were found to be consistent with a linear planetary wave advecting a passive tracer. In this paper, the dominant patterns of variability for 30 mb NMC heights and TOMS total ozone are obtained for the winter to summer transition (January to May) in the Northern Hemisphere (NH) for the years 1987-1990
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