Blar i Institutt for fysikk på emneord "NATURAL SCIENCES: Physics"

Viser treff 1-13 av 13

    • A TEM study of the precipitates in a 6082 Al-Mg-Si alloy system 

      Marioara, Calin Daniel (Dr. ingeniøravhandling, 0809-103X; 2000:103, Doctoral thesis, 2001)
      The purpose of this work has been to gain a better understanding of the details of the precipitation sequence in Al-Mg-Si alloys. Because of the complexity of such ternary systems is has been necessary to limit the study ...

    • Atomistic modeling of the Al-Mg-Si alloy system 

      Frøseth, Anders G. (Dr. ingeniøravhandling, 0809-103X; 2003:28, Doctoral thesis, 2003)
      The atomic and electronic structure of bulk crystalline and solid state phases related to Al-Mg-Si (6xxx) alloys have been studied using Density Functional Theory (DFT) and total energy Tight Binding (TB). We present a ...

    • Critical Properties of the Abelian Higgs Model.: A Monte Carlo Study 

      Hove, Joakim (Dr. ingeniøravhandling, 0809-103X; 2002:27, Doctoral thesis, 2002)
      We have studied various aspects of the critical properties of the Abelian Higgs model. The initial motivation to study this model is its relation to superconductivity, but the results extend beyond the realms of ...

    • Magnetic and Thermodynamic Properties of Layered and Thin Film Superconductors 

      Thisted, Ulrik Schou (Doktoravhandlinger ved NTNU, 1503-8181; 2004:63, Doctoral thesis, 2004)
      A large variety of measurements, most of magnetic nature, performed on single crystals of high temperature superconductors and thin films of lead, are presented. Furthermore, numerical calculations of the magnetic properties ...

    • Measurement and Models of Solar Irradiance 

      Lysko, Meena Devi (Doktoravhandlinger ved NTNU, 1503-8181; 2006:152, Doctoral thesis, 2006)
      Solar radiation is the main driving force for the Earth’s weather and climate. It is also the prime source for renewable energy technologies.Solar energy technologies can satisfy the current energy demand and at the same ...

    • Nanoparticles in dilute solution: Theory and experiments 

      Næss, Stine Nalum (Doktoravhandlinger ved NTNU, 1503-8181; 2004:49, Doctoral thesis, 2004)
      My thesis focuses on nanoparticles in dilute solution. The nanoparticles that interest us the most are biopolymers (DNA, RNA, proteins, and polysaccharides). Biopolymers are molecules of biological origin. Biopolymers are ...

    • Ordering and Preferred Orientation in Films of Polymeric Semiconductors 

      Breiby, Dag W. (Dr. ingeniøravhandling, 0809-103X; 2002:145, Doctoral thesis, 2003)
      Various aspects related to molecular ordering and preferred orientation in films of polymeric semiconductors is presented. The polymers poly(alkylthiophene)s (PATs) and poly(3,4- ethylenedioxythiophene)s (PEDOTs), being ...

    • Phase structure and critical properties of an abelian gauge theory 

      Mo, Sjur (Dr. ingeniøravhandling, 0809-103X; 2001:116, Doctoral thesis, 2002)
      Chapter 1 to 4 give a short introduction to superconductivity, microscopic theory, phase transitions, and Monte-Carlo simulations. Chapter 2 is about Cooper pairing in different settings, but I also give a short introduction ...

    • Phototherapy of newborns suffering from hyperbilirubinaemia: An experimental study 

      Bruzell, Ellen (Doctoral thesis, 2003)

    • Quantitative Convergent Beam Electron Diffraction and Charge Density Studies 

      Friis, Jesper (Dr. ingeniøravhandling, 0809-103X; 2003:97, Doctoral thesis, 2003)
      Very accurate low-order structure factors have been measured in copper, magnesium and strontium titanate using quantitative convergent beam electron diffraction (QCBED). The charge density distribution in these materials ...

    • Rotational Diffusion Processes in Segmented Polymers. Theory and Computer Simulations 

      Ådland, Hans Magne (Dr.ingeniøravhandling, 0809-103X; 2002:139, Doctoral thesis, 2003)
      All biological macromolecules (DNA, RNA, proteins, polysaccarids) are polymers. These are extremely complex systems, with thousands or millions of atomic degrees of freedom. However, a range of important properties of such ...

    • Statistical Thermodynamics of Proteins 

      Bakk, Audun (Dr. ingeniøravhandling, 0809-103X; 2002:26, Doctoral thesis, 2002)
      The subject of this thesis is to formulate effective energy expressions (Hamiltonians) of proteins and protein related systems. By use of equilibrium statistical mechanics we calculate thermodynamical functions, whereupon ...

    • Tem study of microstructure in relation to hardness and ductility in Al-Mg-Si (6xxx) alloys 

      Mageto, Maxwell Joel (Master thesis, 2003)
      Two different solution heat treatments (2hours at 570ºC and 10minutes at 520ºC) have been used to study precipitation in two 6xxx (Al-Mg-si) dispersoid-freealloys with composition: 0.721 at % Si, 0.577 at % Mg (alloy A3) ...