7,962 research outputs found
An hp-version discontinuous Galerkin method for integro-differential equations of parabolic type
No full textWe study the numerical solution of a class of parabolic integro-differential equations with weakly singular kernels. We use an -version discontinuous Galerkin (DG) method for the discretization in time. We derive optimal -version error estimates and show that exponential rates of convergence can be achieved for solutions with singular (temporal) behavior near caused by the weakly singular kernel. Moreover, we prove that by using nonuniformly refined time steps, optimal algebraic convergence rates can be achieved for the -version DG method. We then combine the DG time-stepping method with a standard finite element discretization in space, and present an optimal error analysis of the resulting fully discrete scheme. Our theoretical results are numerically validated in a series of test problems
Método sem malha hp-clouds na análise de placas Reissner-Mindlin /
Full text linkDissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico.O conteúdo deste trabalho trata da aplicação do método sem malha hp-Clouds ou simplesmente método de nuvens (C. A. Duarte e J. T. Oden [8]) à solução de problemas de placas de Reissner-Mindlin
Prevalence and laboratory findings of canine tick-borne diseases in the National Taiwan University Veterinary Hospital
No full textMolecular modeling studies of the conserved B12-binding motif and its variants from Clostridium tetanomorphum glutamate mutase.
No full textThe Impact of strategic implementation on the employees and contractors of the Hewlett-Packard Company.
No full textConducted within the global corporation of the Hewlett-Packard Company, (HP),this research examines employee and contractor responses to strategic implementation. The research environment is a relatively small UK group withinthe corporation that has continuously experienced significant change as new strategies were implemented. Employee and contractor responses to three separate cycles of change are analysed together with data drawn from the wider corporation by using a psychological contract framework, semi-structured interviewing, a research diary and secondary data from the literature and electronic sources. The research is essentially qualitative but draws on quantitative data where appropriate. A case study approach within an action research paradigm is the chosen methodology to allow consideration and triangulation of multiple sources of data relevant to the natural workplace setting. The research has confirmed a change from old or original psychological contracts to new contracts where employees and contractors are more insecure in, and more cynical of, their employment. This change is perceived as a
violation of their psychological contract and is causing employees and contractors to adopt a more mercenary approach to their employment with HP. The special bond between HP and its employees generated by the values and
egalitarian working environment created by its founders has been broken by new leadership. Acquisition of the Compaq Computer Company has further impacted employees and contractors resulting in declining morale and increasing scepticism about its proposed benefits. Indeed the very legitimacy of the acquisition and the leadership of HP are being questioned as HP changes to a new form. According to the founders, the values established that made HP successful in its first fifty years were expected to continue for at least another fifty years. This research shows how changing these values has collectively impacted
employees and contractors resulting in a major threat to the continuing existence of HP in its present form
Cloning, sequencing, heterologous expression, purification, and characterization of adenosylcobalamin-dependent D-ornithine aminomutase from Clostridium sticklandii.
No full text
Uma nova técnica de aproximação para o método de Galerkin aplicado às equações integrais de contorno /
Full text linkTese (Doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico.No presente trabalho é apresentada uma nova estratégia de adaptatividade p para a aproximação de Galerkin das equações integrais de contorno. Essa nova proposta é baseada no método hp-Clouds (Duarte, 1996), desenvolvido para os elementos finitos
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