12 research outputs found

    Fully adaptive multiresolution schemes for strongly degenerate parabolic equations with discontinuous flux

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    A fully adaptive finite volume multiresolution scheme for one-dimensional strongly degenerate parabolic equations with discontinuous flux is presented. The numerical scheme is based on a finite volume discretization using the Engquist--Osher approximation for the flux and explicit time--stepping. An adaptivemultiresolution scheme with cell averages is then used to speed up CPU time and meet memory requirements. A particular feature of our scheme is the storage of the multiresolution representation of the solution in a dynamic graded tree, for the sake of data compression and to facilitate navigation. Applications to traffic flow with driver reaction and a clarifier--thickener model illustrate the efficiency of this method

    Training, development and learning

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    This chapter discusses and explores a number of critical issues related to training, development and learning (TDL). It does this by highlighting the differ­ences between the terms, reflecting on older, more classical approaches to training versus more contemporary and recent trends that are more situation­ or context-specific. Such context-specificity means that the older approaches to training, although useful, have to be rethought. More recent trends in global organizations such as technological advances, human expectations of what constitutes a valuable job, organizational expectations related to capabilities that match strategic business needs, and increased social interaction, have meant that the older approaches are now less valuable

    The domains of intellectual capital: an integrative discourse across perspectives

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    This chapter explores the domains of intellectual capital (IC) more commonly known as human, organisation and social capital. This theoretical analysis draws together these three disciplinary domains through an integrative discourse in terms of leveraging accumulative resources, connecting complementary themes and distinguishing between interdependent cognitions and behaviours. It seeks to answer scholarly concerns that the IC construct is vague and misleading, resulting in erroneous and generalised relationships. The chapter adopts a theoretical lens and explores complementary discourses of the relationships between human capital (HC), human capital resources (HCR), organisational capital and social capital (SC). For HC and HCR, the discussions build on the resource-based view and the micro-foundations approaches in the strategy literature, where recent research has explored linkages between HCR and competitive advantage. The SC literature is outlined and the discourse between internal SC and external SC is spelled out. The discourses between the domains suggest that through a process of emergence, firms can develop dynamic capabilities that enable them to achieve competitive advantage in factor markets. In light of this, the chapter builds on and complements other recent research that has extended scholarly concerns about the lack of an integrative framework by which the IC linkages and variables can be developed and tested

    Upscaling Of Biological Processes And Multiphase Flow In Highly Heterogeneous Media

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    In order to remediate contamination of our aquifers or optimize the recovery of hydrocarbon from subsurface reservoirs, one must be able to accurately simulate the multiphase flow of fluids through highly heterogeneous media. The fine-scale interfacial interactions greatly influence ow properties particularly in the presence of bioprocesses; these effects must be upscaled through many scales of heterogeneities in the subsurface lithologies. Large-scale correlations of flow properties in the subsurface can cause chanelling, which greatly influences the production or remediation strategies. We will discuss various difficulties in this upscaling process in the context of bioremediation and will present some directions for future research
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