5,610 research outputs found

    SC author and illustrator Kate Salley Palmer signing book

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    Photograph of SC author and illustrator Kate Salley Palmer signing boo

    Book signing by SC author and illustrator Kate Salley Palmer

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    Photograph of Book signing by SC author and illustrator Kate Salley Palme

    Reconciling Versioning and Context in Hypermedia Structure Servers

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    Contextual structure servers and versioning servers share a similar goal in allowing different views on a stored structure according to the viewer’s perspective. In this paper we argue that a generic contextual model can be used to facilitate versioning. In order to prove our hypothesis we have drawn on our experiences with OHP-Version to extend FOHM’s contextual model

    High-resolution clean-sc

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    In this paper a high-resolution extension of CLEAN-SC is proposed: HR-CLEAN-SC. Where CLEAN-SC uses peak sources in “dirty maps” to define so-called source components, HR-CLEAN-SC takes advantage of the fact that source components can likewise be derived from points at some distance from the peak, as long as these “source markers” are on the main lobe of the Point Spread Function (PSF). This is very useful when sources are closely spaced together, such that their PSFs interfere. Then, alternative markers can be sought in which the relative influence by PSFs of other source positions is minimised. For those markers the source components better agree with the actual sources, which allows for better estimation of their locations and strengths. This paper outlines the theory needed to understand this approach and discusses applications to 2D and 3D microphone array simulations with closely spaced sources

    Biodisponibilidade de zinco de ostras (Crassostrea gigas) cultivadas em Florianópolis/SC

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    Dissertação (mestrado) - Universidade Federal de Santa Catarina. Centro de Ciências da Saúde. Programa de Pós-Graduação em NutriçãoO zinco é um mineral essencial para várias funções orgânicas e está amplamente distribuído no corpo humano. Sua deficiência pode causar anorexia, cicatrização lenta, disfunções imunológicas, desordens de comportamento, entre outras conseqüências. Os alimentos diferem no seu conteúdo de zinco, sendo as ostras consideradas entre as melhores fontes. Este trabalho tem como objetivo avaliar a biodisponibilidade de zinco de dieta contendo ostras Crassostrea gigas cultivadas em região de Florianópolis, SC, em ratas (Rattus norvegicus). As ostras foram coletadas na Fazenda Marinha Atlântico Sul localizada no Ribeirão da Ilha, Baía Sul da Ilha de Santa Catarina. O ensaio biológico durou 49 dias, sendo os animais, com idade média de 50 dias, distribuídos em três grupos: G1: dieta controle (AIN-93M), G2: dieta isenta de zinco (AIN-93M modificada); G3: dieta isenta de zinco e acrescida de ostras. Ao final do experimento foram coletados os fêmures dos animais para análise do teor de zinco. Com as análises das ostras in natura, verificamos 85,21g% de umidade; 1,6g% de cinzas, 6,37g% de proteínas, 1,54g% de lipídeos; 5,28g% de carboidratos, 60,56kcal e 4,38mg% de zinco. Quanto ao teor de zinco no fêmur, os grupos G1 e G3 apresentaram elevadas concentrações (p < 0,05) quando comparados ao grupo G2, sendo em média 246,62; 221,41 e 110,12 µg/g osso, respectivamente. Estes resultados demonstram uma importante correlação entre consumo de zinco e teor de zinco no fêmur e que as ostras Crassostrea gigas, cultivadas em Florianópolis, apresentam alta biodisponibilidade de zinco

    SC author and illustrator Kate Salley Palmer talking to event attendees

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    Photograph of SC author and illustrator Kate Salley Palmer talking to Rita Lewi

    Ca-modified Al–Mg–Sc alloy with high strength at elevated temperatures due to a hierarchical microstructure

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    Al-Mg alloys are normally prone to lose part of their yield and tensile strength at high temperatures due to insufficient thermal stability of the microstructure. Here, we present a Ca-modified Al–Mg–Sc alloy demonstrating high strength at elevated temperatures. The microstructure contains Al4Ca phases distributed as a network along the grain boundary and Al3(Sc,Zr) nano-particles dispersed within the grains. The microstructure evolution and age-hardening analysis indicate that the combination of an Al4Ca network and Sc-rich nano-particles leads to excellent thermal stability even upon aging at 300 °C. The tensile strength of the alloy for temperatures up to 250 °C is significantly improved by an aging treatment and is comparable with the commercial heat-resistant aluminum alloys, i.e., A356 and A319. At a high temperature of 300 °C, the tensile strength is superior to the above-mentioned commercial alloys, even more so when expressed as the specific strength due to the low density of Ca-modified Al–Mg–Sc alloy. The excellent high-temperature strength results from a synergistic effect of solid solution strengthening, grain boundary strengthening and nanoparticle order strengthening.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Novel Aerospace Material

    SC-Square: Overview to 2021.

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    This extended abstract was written to accompany an invited talk at the 2021 SC-Square Workshop, where the author was asked to give an overview of SC-Square progress to date. The author first reminds the reader of the definition of SC-Square, then briefly outlines some of the history, before picking out some (personal) scientific highlights

    SC-Square: Overview to 2021.

    No full text
    This extended abstract was written to accompany an invited talk at the 2021 SC-Square Workshop, where the author was asked to give an overview of SC-Square progress to date. The author first reminds the reader of the definition of SC-Square, then briefly outlines some of the history, before picking out some (personal) scientific highlights

    Exposing potential narrative structure through user choice

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    The reading of a hypertext fiction could simply be viewed as the reordering of events, reviewing and accessing fragments of a story that has already taken place. A different reader experience would come from different orderings and the effects that these might produce. This doesn’t have to be the case however. The fragments of a fiction also can represent possibilities that have yet to occur. This is independent of the over-arching narrative of the piece. At points in the fiction the reader is presented with choices. Do I follow this link or do I choose a different path? Here, the narrative structure of the piece is leaking through the text and not just the read structure but potential future structures. These choices must be presented to the reader by the author. This paper will examine some of the consequences of exposing the visibilities of these narrative structures, using the presentation of choices in hypertext fiction as an exemplar
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