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Sökning: swepub > Umeå universitet > Rapport > Uppsala universitet

  • Resultat 1-10 av 15
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1.
  • Adams, Robin, et al. (författare)
  • What is the word for 'Engineering' in Swedish : Swedish students conceptions of their discipline
  • 2007
  • Rapport (övrigt vetenskapligt)abstract
    • Engineering education in Sweden – as in the rest of the world – is experiencing a decline in student interest. There are concerns about the ways in which students think about engineering education, why they join an academic programme in engineering, and why they persist in their studies. In this context the aims of the Nationellt ämnesdidaktiskt Centrum för Teknikutbildning i Studenternas Sammanhang project (CeTUSS) is to investigate the student experience and to identify and support a continuing network of interested researchers, as well as in building capacity for disciplinary pedagogic investigation.The Stepping Stones project brings together these interests in a multi-researcher, multi-institutional study that investigates how tudents and academic staff perceive engineering in Sweden and in Swedish education. The first results of that project are reported here. As this study is situated uniquely in Swedish education, it allows for exploration of “a Swedish perspective” on conceptions of engineering. The Stepping Stones project was based on a model of research capacity-building previously instantiated in the USA and Australia (Fincher & Tenenberg, 2006).
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  • Aronsson, Thomas, et al. (författare)
  • The Standard Deviation of Life-Length, Retirement Incentives, and Optimal Pension Design
  • 2010
  • Rapport (övrigt vetenskapligt)abstract
    • In this paper, we consider how the retirement age as well as a tax financed pension system ought to respond to a change in the standard deviation of the length of life. In a first best framework, where a benevolent government exercises perfect control over the individuals’ labor supply and retirement-decisions, the results show that a decrease in the standard deviation of life-length leads to an increase in the optimal retirement age and vice versa, if the preferences for “the number of years spent in retirement” are characterized by constant or decreasing absolute risk aversion. A similar result follows in a second best setting, where the government raises revenue via a proportional tax (or pension fee) to finance a lump-sum benefit per year spent in retirement. We consider two versions of this model, one with a mandatory retirement age decided upon by the government and the other where the retirement age is a private decision-variable.
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4.
  • Fazlhashemi, Mohammad, 1961- (författare)
  • Akademiskt lärarskap
  • 2010
  • Rapport (övrigt vetenskapligt)abstract
    • Syftet med rapporten har varit att på uppdrag av Malmö högskola utvärdera den högskolepedagogiska utbildning som ges vid högskolan. Rapporten granskar styrkor och svagheter i verksamheten och avslutas i enlighet med uppdraget med ett antal förslag på hur verksamheten skall fortsätta i framtiden.
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  • Noreland, Daniel, et al. (författare)
  • An efficient loudspeaker horn designed by numerical optimization : an experimental study
  • 2010
  • Rapport (övrigt vetenskapligt)abstract
    • Using rapid prototyping, we manufacture an acoustic horn designed by gradient-based shape optimization to have virtually perfect impedance-matching properties. The horn is 161.5 mm long, has a mouth diameter of 300 mm, and a throat diameter intended for a 1.5 inch driver. We optimize the horn with the aim of having perfect radiation efficiency at 31 frequencies in the range 1.6–9.05 kHz, while satisfying a convexity constraint on the flare. The acoustical properties, as needed by the optimization algorithm, are calculated through numerical solutions with the finite-element method of the axisymmetric Helmholtz equation. The prototype has been analyzed in an anechoic chamber. In the design frequency band, the acoustic input impedance agrees reasonably well with the ideal characteristic impedance of a waveguide with the same cross sectional area as the horn throat.
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  • Resultat 1-10 av 15
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