• Practical Thermal and Electrical Parameter Extraction Methods for Modelling HBT´s and their Applications in Power Amplifiers 

      Olavsbråten, Morten (Dr. ingeniøravhandling, 0809-103X; 2003:20, Doctoral thesis, 2003)
      A new practical technique for estimating the junction temperature and the thermal resistance of an HBT was developed. The technique estimates an interval for the junction temperature. The main assumption in the new technique ...
    • Roll-out of model based control with application to paper machines 

      Hauge, Tor Anders (Dr. ingeniøravhandling, 0809-103X; 2003:31, Doctoral thesis, 2003)
       A mechanistic nonlinear model of the wet end of paper machine 6 (PM6) at Norske Skog Saugbrugs, Norway has been developed, and used in an MPC application. The MPC provides reduced variability in many key variables, ...
    • Interactive Process Models 

      Jørgensen, Håvard D. (Doktoravhandlinger ved NTNU, 1503-8181; 2004:2, Doctoral thesis, 2004)
      Contemporary business process systems are built to automate routine procedures. Automation demands well-understood domains, repetitive processes, clear organisational roles, an established terminology, and predefined plans. ...
    • Subgroup membership problems and public key cryptosystems 

      Gjøsteen, Kristian (Doktoravhandlinger ved NTNU, 1503-8181; 2004:69, Doctoral thesis, 2004)
      Public key encryption was first proposed by Diffie and Hellman [16], and widely popularised with the RSA cryptosystem [37]. Over the years, the security goals of public key encryption have been studied [17, 22], as have ...
    • A Model-based Approach for Clinical Evaluation of Left Ventricular Deformation 

      Remme, Espen W. (Doktoravhandlinger ved NTNU, 1503-8181; 2004:48, Doctoral thesis, 2004)
      Assessment of left ventricular (LV) deformation is essential for clinical evaluation of LV function and cardiac images are frequently used to evaluate the LV motion and function. By combining the images with mathematical ...
    • Error-robust coding and transformation of compressed hybered hybrid video streams for packet-switched wireless networks 

      Halbach, Till (Doktoravhandlinger ved NTNU, 1503-8181; 2004:84, Doctoral thesis, 2004)
      This dissertation considers packet-switched wireless networks for transmission of variable-rate layered hybrid video streams. Target applications are video streaming and broadcasting services. The work can be divided into ...
    • An experimental study of Hydrodynamic Forces on Cylinders and Cables in Near Axial Flow 

      Ersdal, Svein (Doktoravhandlinger ved NTNU, 1503-8181; 2004:125, Doctoral thesis, 2004)
      The thesis addresses the hydrodynamic forces on cylinders where the angle between incoming flow and the cylinder axis, the angle of attack, is low. Measured results for a rigid cylinder with length to diameter ratio of ...
    • Effects of the Force Distribution in Dry Granular Materials 

      Bratberg, Ivar (Dr. ingeniøravhandling, 0809-103X; 2003:113, Doctoral thesis, 2004)
      This work concentrates on the force-network of dry granular materials. The dynamical and static properties of the force-network are studied through simulations and experiments. We study the structural properties of ...
    • Macromodelling of Microsystems 

      Westby, Eskild R. (Doktoravhandlinger ved NTNU, 1503-8181; 2004:66, Doctoral thesis, 2004)
      The aim of this work has been to develop new knowledge about macromodelling of microsystems. Doing that, we have followed two different approaches for generating macromodels, namely model order reduction and lumped modelling. ...
    • Estimation and Correction of Aberration in Medical Ultrasound Imaging 

      Måsøy, Svein-Erik (Doktoravhandlinger ved NTNU, 1503-8181; 2004:157, Doctoral thesis, 2004)
      The work presented in this thesis is devoted to studying aberration in ultrasound medical imaging, and to provide methods for correcting aberration of ultrasound signals in order to obtain optimum image quality. The thesis ...
    • Distributed Energy Systems with Wind Power and Energy Storage 

      Korpås, Magnus (Doktoravhandlinger ved NTNU, 1503-8181; 2004:39, Doctoral thesis, 2004)
      The topic of this thesis is the study of energy storage systems operating with wind power plants. The motivation for applying energy storage in this context is that wind power generation is intermittent and generally ...
    • Population balance modeling and passivity-based control of particulate processes, applied to the Silgrain® process 

      Dueñas Diéz, Marta (Doktoravhandlinger ved NTNU, 1503-8181; 2004:35, Doctoral thesis, 2004)
      This thesis deals with the systematic development of mechanistic models of particulate processes for the purposes of nonlinear controller design and implementation.The methods investigated in this thesis were illustrated ...
    • Searching and Classifying non-textual information 

      Arentz, Will Archer (Doktoravhandlinger ved NTNU, 1503-8181; 2004:51, Doctoral thesis, 2004)
      This dissertation contains a set of contributions that deal with search or classification of non-textual information. Each contribution can be considered a solution to a specific problem, in an attempt to map out a common ...
    • Quality of service differentiation, teletraffic analysis and network layer packet redundancy in optical packet switched networks 

      Øverby, Harald (Doktoravhandlinger ved NTNU, 1503-8181; 2005:122, Doctoral thesis, 2005)
      Optical Packet Switching (OPS) has emerged as a promising candidate for the next-generation Wavelength Division Multiplexed (WDM) based alloptical network. By enabling packet switching in the optical domain, OPS networks ...
    • Rate-distortion optimal vector selection in frame based compression 

      Ryen, Tom (Doktoravhandlinger ved NTNU, 1503-8181; 2005:107, Doctoral thesis, 2005)
      In signal compression we distinguish between lossless and lossy compression. In lossless compression, the encoded signal is more bit efficient than the original signal and is exactly the same as the original one when ...
    • Process Support for Requirements Engineering: A Requirements Engineering Tool Evaluation Approach 

      Matulevičius, Raimundas (Doktoravhandlinger ved NTNU, 1503-8181; 2005:142, Doctoral thesis, 2005)
      Requirements engineering (RE) tools are software tools which provide automated assistance during the RE process. However, the RE practice relies on office tools rather than RE-tools provided by various companies. Reasons ...
    • OntoLog: Flexible Management of Semantic Video Content Annotations 

      Heggland, Jon (Doktoravhandlinger ved NTNU, 1503-8181; 2005:161, Doctoral thesis, 2005)
      To encode, query and present the semantic content of digital video precisely and flexibly is very useful for many kinds of knowledge work: system analysis and evaluation, documentation and education, to name a few. However, ...
    • Diagnostic applications of diffuse reflectance spectroscopy 

      Randeberg, Lise Lyngsnes (Doktoravhandlinger ved NTNU, 1503-8181; 2005:100, Doctoral thesis, 2005)
      This thesis covers a wide field of applications, with an emphasis on applications of reflectance spectroscopy for diagnostic purposes. Reflectance spectroscopy in the visible part of the spectrum has been proved to be a ...
    • Hardware-accelerated analysis of non-protein-coding RNAs 

      Snøve Jr., Ola (Doktoravhandlinger ved NTNU, 1503-8181; 2005:196, Doctoral thesis, 2005)
      A tremendous amount of genomic sequence data of relatively high quality has become publicly available due to the human genome sequencing projects that were completed a few years ago. Despite considerable efforts, we do not ...
    • Multilevel Power Electronic Converters for Electrical motor Drives 

      Lund, Richard (Doktoravhandlinger ved NTNU, 1503-8181; 2005:62, Doctoral thesis, 2005)
      Power electronic converters are widely used in industrial power conversion systems both for utility and drives applications. As the power level increases, the voltage level is increased accordingly to obtain satisfactory ...