Blar i Fakultet for teknologi, naturvitenskap og maritime fag på dokumenttype "Doctoral thesis"

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    • A Mathematical Theory for Mixing of Particulate Materials 

      Ghaderi, Ali (Doctoral thesis, 2006)
      A theoretical framework for sampling theory is developed. In this relation, concepts like mixture heterogeneity and representative samples are mathematically defined. Further, the relation between Gy's concepts of accuracy ...

    • Durability of selected membrane materials when exposed to chlorine gas 

      Eikeland, Marianne Sørflaten (Doctoral thesis; Peer reviewed, 2001)
      This thesis is focusing on the durability of selected membrane materials when exposed to chlorine gas in the temperature range 30-100°C. Studies of the changes of membrane separation properties and the mechanisms promoting ...

    • Dynamic system multivariate calibration for optimal primary output estimation 

      Ergon, Rolf (Doctoral thesis; Peer reviewed, 1999)
      In industrial plants and other types of dynamic systems, it is a common situation that measurements of primary system outputs are not available on-line. The primary outputs may for example be quality properties, that can ...

    • Genetic variation and structure in Norwegian red deer 

      Haanes, Hallvard (Doctoral thesis; Peer reviewed, 2008-07)
      In all species the abundance and distribution of populations vary through time and space, but recently major changes in the size and range of many populations have been observed. Population contractions and founder events ...

    • Hydrogen gas explosions in pipelines, modeling and experimental investigations 

      Knudsen, Vegeir (Doctoral thesis; Peer reviewed, 2006)
      Gas explosions in closed pipes with a single obstacle have been investigated both numerically and experimentally. Most of the work is related to hydrogen and air mixtures, but other fuels have also been used. At the present ...

    • Nosé-Hoover simulations of aqueous mixtures of small alcohols 

      Holta, Randi Toreskås (Doctoral thesis; Peer reviewed, 1996)
      We have performed constant energy and constant temperature equilibrium molecular dynamics simulations of model liquids of water, methanol, and ethanol, and of the binary aqueous mixtures of the alcohols at mole fractions ...

    • Re-initiation of detonation across an inert region 

      Bjerketvedt, Dag (Doktor ingeniøravhandling;374, Doctoral thesis, 1985)
      Re-initiation of gaseous C-J detonation waves across a region of air has been studied experimentally. The experimental apparatus consisted of a 9 meter long square tube with internal dimensions of 125 mm. The Random Choice ...

    • The function of scent marking in beaver (Castor fiber) territorial defence 

      Rosell, Frank (Doctoral thesis; Peer reviewed, 2001)
      This thesis examines how scent marking in Eurasian beaver (Castor fiber) functions in territorial defence. Beavers usually deposit scent (castoreum and/or anal gland secretion (AGS)) onto small piles of mud and debris, and ...

    • The impact of staged combustion on the operation of a precalciner cement kiln 

      Tokheim, Lars-André (Doctoral theses at NTNU;1999:89, Doctoral thesis; Peer reviewed, 1999)
      In this thesis, the impact of staged combustion on the operation of a precalciner cement kiln, is considered. Mathematical modelling and full-scale experiments at the Norcem cement works in Brevik, Norway, is the basis for ...

    • The Influence of the Physical Characteristics of Particulate Materials on their Conveyability in Pneumatic Transport Systems 

      Martinussen, Svein Erlend (Doctoral thesis; Peer reviewed, 1996-12)
      The aim of the investigation has been to establish a link between the physical characteristics of particulate materials, measurable on small samples in a laboratory, and the conveyability of these materials in a pneumatic ...