6,426 research outputs found
Wallis, Richard (SC 677)
No full textFinding aid and scan of a sample (Click on additional files below) for Manuscripts Small Collection 677. Pages from a copybook containing penmanship samples of Richard Wallis
SC author and illustrator Kate Salley Palmer signing book
No full textPhotograph of SC author and illustrator Kate Salley Palmer signing boo
Book signing by SC author and illustrator Kate Salley Palmer
No full textPhotograph of Book signing by SC author and illustrator Kate Salley Palme
High-resolution clean-sc
No full textIn 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
SC author and illustrator Kate Salley Palmer talking to event attendees
No full textPhotograph 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
No full textAl-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.
No full textThis 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 textThis 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
Crescimento, composição corporal e estilo de vida de escolares no município de Florianópolis - SC, Brasil
No full textDissertação(mestrado) - Universidade Federal de Santa Catarina, Centro de Desportos. Programa de Pós-Graduação em Educação FísicaEste estudo objetivou analisar, através de abordagem transversal, variáveis de crescimento, da composição corporal e do estilo de vida de escolares com idades entre 11 e 17 anos, no Município de Florianópolis. A amostra compreendeu 2.384 escolares, sendo 1.201 moças (50,4%) e 1.183 rapazes (49,6%), selecionada aleatoriamente por unidade escolar, estratificada por regiões geográficas, redes de ensino (pública e particular) e por conglomerados de classes. A média de idade dos escolares foi de 14,45±1,99, sendo 14,42±2,00 para as moças e 14,48±1,97 para os rapazes. Foram analisados o nível sócio-demográfico, as variáveis de crescimento (massa corporal e estatura), a composição corporal (somatório das dobras cutâneas, percentual de gordura e índice de adiposidade) e o estilo de vida (atividades diárias, níveis de estresse e hábitos alimentares). A coleta de dados foi efetuada através de questionário envolvendo aspectos sócio-demográficos, estilo de vida e medidas antropométricas. Nos procedimentos estatísticos, foram utilizados os recursos do programa Microsoft Excel 97 para a tabulação dos dados, e o pacote estatístico SPSS versão 10.0. Para as devidas análises, utilizou-se a estatística paramétrica (estatísticas descritivas, teste "t" de Student para amostras independentes e análise de variância com dois fatores) e não-paramétrica (teste Qui-quadrado, Kruskal-Wallis e Mann-Whitney), adotando-se o nível de significância p<0,05. Os resultados demonstraram que: (a) os escolares pertenciam a famílias de classes socioeconômicas intermediárias, com poucos irmãos, vivendo a grande maioria com os pais. Poucos trabalhavam e a maioria estudava em escolas públicas. Quase 40% dos escolares não eram nativos de Florianópolis; (b) com relação ao crescimento independentemente do sexo, os escolares apresentaram resultados crescentes para as variáveis de massa corporal e estatura dos 11 aos 17 anos de idade. Diferenças estatisticamente significativas foram encontradas entre moças e rapazes para massa corporal dos 15 aos 17 anos, estatura aos 11 e dos 14 aos 17 anos, e na variável percentual de gordura em todas as idades; (c) quanto ao índice de adiposidade, 19,3% das moças e 13,2% dos rapazes apresentaram obesidade; (d) no que se refere ao estilo de vida, moças e rapazes diferiram significativamente no tempo gasto com atividades sedentárias e físicas diárias das 6h as 24h. Com o avançar da idade moças e rapazes apresentaram um declínio no tempo gasto com atividades físicas. Com relação ao estresse, as moças mostraram-se mais estressadas do que os rapazes. Quanto aos hábitos alimentares, moças e rapazes apresentaram comportamentos similares, preferindo alimentos mais saudáveis
Supply Chain (SC) Network Optimization
No full textSupply chain network design and optimization is one of the most important strategic decisions that an organization has to make. SC network design decisions are strategic-level SC decisions because they have long-lasting effect on the firms' supply chain performance and the decisions cannot be changed in a short period. In this chapter, the author aims to introduce the concept of SC network optimization to the managers of medium-sized enterprises. The chapter also explains the importance of the SC network optimization studies, educates readers about how they can benefit from the concept, and tries to show how the implementation of SC network optimization/design will improve the competitiveness of these organizations. The readers are also guided through the four steps of SC network optimization process. Finally, the chapter provides a brief review of the SC network optimization literature and proposes future research directions. </jats:p
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