Doktorgradsavhandlinger (NT-fak): Nye registreringer

Viser treff 301-305 av 305

    • Quality of service aware binding in open systems 

      Hanssen, Øyvind (Doctoral thesis; Doktorgradsavhandling, 2008-02-07)
      This thesis addresses negotiation of bindings in QoS aware open systems and in particular how to characterize possible contracts, requirements and capabilities of heterogeneous environments. Our approach is (1) to use trading of policies as the principle for negotiation and (2) the use of declared or rule-based conformance for QoS statements to be used in negotiation and (3) a middleware binding ...

    • Angles as tool for grasping space. Teaching of angles based on students’ experiences with physical activities and body movement 

      Fyhn, Anne Birgitte (Doctoral thesis; Doktorgradsavhandling, 2007-06-13)
      The thesis enlightens how the choice of context as well as the approach to mathematics is important in introducing the concepts of angles. The analyses indicate that students should not be introduced to measuring angles before they are able to sort out angles according to their sizes. Angles can be introduced by use of the students’ bodies in a climbing context, where the word angle refers to ...

    • Low-frequency noise characterization of silicon-germanium resistors and devices 

      Johansen, Jarle Andre (Doctoral thesis; Doktorgradsavhandling, 2004-06-03)
      The main topic of this thesis is experimental low-frequency electrical noise characterization of semiconductor devices. In particular, we concentrate on applications of the silicon-germanium alloy (SiGe). Low-frequency electrical noise is a sensitive measure of defects and non-idealities in semiconductor devices, which directly or indirectly impact device performance and reliability. Thus, it ...

    • Wave damping and momentum transfer. Manifestation of momentum transfer in case of ocean surface waves being damped by an elastic film or a viscous layer 

      Foss, Marianne (Doctoral thesis; Doktorgradsavhandling, 2001-02-28)
      Virkninga av å ha et bølgedempende overflatemateriale i ei havoverflate er studert, med særlig vekt på betydninga av strålingstrykket (-stresset) eller bølgetrykket fra et innfallende, udempet bølgefelt. Det er et teoretisk studium av den dynamiske prosess som foregår når udempede overflatebølger propagerer inn i et område med bølgedempende overflatesjikt, i lys av det bølgetrykk bølgene øver på ...

    • Interferometric and high time-resolution observations of naturally enhanced ion-acoustic echoes at the EISCAT Svalbard radar: Software radar and incoherent scattering 

      Grydeland, Tom (Doctoral thesis; Doktorgradsavhandling, 2003-06-24)
      We know that the visible Aurora Borealis is structured on many different scales, down to a few tens of metres. By using the EISCAT radars on Svalbard as an interferometer, we have found structures in the radio echoes from the auroral ionosphere on a scale approaching that of the visible aurora, and simultaneously with it, but at far greater ranges. In this thesis we discuss how these radar observations ...