Doktorgradsavhandlinger (Fakultet for ingeniørvitenskap og teknologi): Nye registreringer

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    • Engineering methods for enhancing railway geometry and winter road assessment: A safety and maintenance perspective 

      Brustad, Tanita Fossli (Doctoral thesis; Doktorgradsavhandling, 2020-06-22)
      In many areas around the world there are limited transportation possibilities when travelling between key cities. If these areas also experience demanding weather conditions or geography, getting from A to B, during difficult conditions, is usually not optimal in regards to accessibility, safety, and comfort. Under challenging conditions, two essential elements in strengthening accessibility, safety, ...

    • Some new contributions related to structural problems in engineering 

      Seger, Andreas (Doctoral thesis; Doktorgradsavhandling, 2020-06-17)
      <p>The studies in this PhD thesis are focused on some problems of general interest in applied mathematics and engineering sciences. A very broad view is used from contributions which can be directly used for solving some important structural problems in engineering sciences, to contributions which also are of interest in pure mathematics. The main body of the PhD thesis consists of five papers (papers ...

    • Optimization models and methods for sustainable reverse logistics network design 

      Yu, Hao (Doctoral thesis; Doktorgradsavhandling, 2018-11-29)
      With the increased focus on sustainable development and circular economy, as never before, the value recovery and re-creation from the End-of-Use and End-of-Life products has been paid considerable attention by the whole society. Reverse logistics is believed as one of the most effective and promising means for the value recovery of the End-of-Use and End-of-Life products, which is the process for ...

    • Studies of some Operators of Harmonic Analysis in certain Function Spaces with Applications to PDEs 

      Lundberg, Staffan (Doctoral thesis; Doktorgradsavhandling, 2018-12-05)
      The study in this PhD thesis aims at development of certain mathematical methods used in applications, in particular, in the study of regularity properties of solutions in various mathematical models described by Partial Differential Equations (PDEs). To this end, we study various operators of harmonic analysis in certain function spaces, since solutions to many PDEs may be expressed in terms of ...

    • Solutions to some problems related to Diophantine equation, power means and homogenization theory 

      Høibakk, Ralph (Doctoral thesis; Doktorgradsavhandling, 2017-05-19)
      This Ph.D. thesis consists of an introduction and 7 papers where we investigate the requirements for finding integer or rational solutions to a selection of Diophantine equations leading to problems connected to power means and homogenization. In Paper 1 we present a modern view of classic number theory in a historic context. In Paper 2 we introduce the Crossed Ladders Problem and present a proof ...

    • Atmospheric icing on wind turbines : Modeling and consequences for energy production 

      Homola, Matthew Carl (Doctoral thesis; Doktorgradsavhandling, 2011)

    • Control of rigid bodies : with applications to leader-follower spacecraft formations 

      Schlanbusch, Rune (Doctoral thesis; Doktorgradsavhandling, 2012)