Now showing items 14-33 of 100

    • CAGISTrans: Adaptable Transactional Support for Cooperative Work 

      Ramampiaro, Herindrasana (Dr. ingeniøravhandling, 0809-103X; 2001:94, Doctoral thesis, 2001)
      The theme of this thesis is on transactional support for cooperative work environments, focusing on data sharing. It is thus concerned with the provision of suitable mechanisms to manage concurrent access to shared data ...
    • Cantor minimal systems and AF-equivalence relations 

      Dahl, Heidi (Doktoravhandlinger ved NTNU, 1503-8181; 2008:54, Doctoral thesis, 2008)
    • Charge accumulation in rod-plane air gap with covered rod 

      Mauseth, Frank (Doktoravhandlinger ved NTNU, 1503-8181; 2006:239, Doctoral thesis, 2007)
      The focus of this work has been on hybrid insulation in inhomogeneous electric fields under lightning impulse voltage stress. The principal idea behind hybrid insulation is the intentional use of surface charges to ...
    • Coordinated Control of Marine Craft 

      Ihle, Ivar-Andre Flakstad (Doctoral Theses at NTNU, 1503-8181; 2006:164, Doctoral thesis, 2006)
      This thesis contains new results on the problem of coordinating a group of vehicles. The main motivation driving this work is the development of control laws that steer individual members of a formation, such that desired ...
    • Decision Aid for Planning Local Energy Systems: Application of Multi-Criteria Decision Analysis 

      Catrinu, Maria (Doctoral Theses at NTNU, 1503-8181; 2006:62, Doctoral thesis, 2006)
      Planning is what sustains an energy system. It is a process of analysis and ongoing decision making about what resources and energy technologies to use when supplying energy to society. This research focuses on integrated ...
    • Design of Low-Power Reduction-Trees in Parallel Multipliers 

      Oskuii, Saeeid Tahmasbi (Doctoral Theses at NTNU, 1503-8181; 2008:61, Doctoral thesis, 2008)
      Multiplications occur frequently in digital signal processing systems, communication systems, and other application specific integrated circuits. Multipliers, being relatively complex units, are deciding factors to the ...
    • 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 ...
    • Discernibility and Rough Sets in Medicine: Tools and Applications 

      Øhrn, Aleksander (Dr. ingeniøravhandling, 0809-103X; 1999:133, Doctoral thesis, 2000)
      This thesis examines how discernibility-based methods can be equipped to posses several qualities that are needed for analyzing tabular medical data, and how these models can be evaluated according to current standard ...
    • 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 ...
    • Distributed Generation - Power Electronic Converters, Communication and Control 

      Hoff, Erik Stjernholm (Doktoravhandlinger ved NTNU, 1503-8181; 2007:89, Doctoral thesis, 2007)
      This thesis tries to explain the changes in the control of power electronic converters that are possible by the use of communication. Many of the renewable energy sources such as photovoltaic panels are geographically ...
    • Domain Model-Centric Distributed Development: An approach to semantics-based change impact management 

      Strasunskas, Darijus (Doctoral Theses at NTNU, 1503-8181; 2006:12, Doctoral thesis, 2006)
      Today’s information systems engineering involves large number of stakeholders, wide geographical distribution and wide range of tools. Success in system engi-neering depends on effective human communication. Early understanding ...
    • Dynamical systems of interacting units: Information transport and higher order structures 

      Helvik, Torbjørn (Doktoravhandlinger ved NTNU, 1503-8181; 2006:1, Doctoral thesis, 2006)
      How can one model, characterize and analyse systems consisting of a large number of interacting units? This thesis addresses various related aspects of this issue using dynamical systems theory. The thesis is constituted ...
    • 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 ...
    • Electrical Power Supply to Offshore Oil Installations by High Voltage Direct Current Transmission 

      Myhre, Jørgen Chr. (Dr. ingeniøravhandling, 0809-103X; 2001:24, Doctoral thesis, 2001)
      This study was initiated to investigate if it could be feasible to supply offshore oil installations in the North Sea with electrical power from land. A prestudy of alternative converter topologies indicated that the most ...
    • Encrypted Computation 

      Brekne, Tønnes (Dr.ingeniøravhandling, 0809-103X; 2001:67, Doctoral thesis, 2001)
      The ability to construct software, call it a functional ciphertext, which can be remotely executed in encrypted form as an entirely self-contained unit, has the potential for some interesting applications. One such application ...
    • 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 ...
    • 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 ...
    • Explanation Awareness and Ambient Intelligence as Social Technologies 

      Cassens, Jörg (Doctoral Theses at NTNU, 1503-8181; 2008:119, Doctoral thesis, 2008)
      This work focuses on the socio-technical aspects of artificial intelligence, namely how (specific types of) intelligent systems function in human workplace environments. The goal is first to get a better understanding of ...
    • Feature Extraction for Automatic Speech Recognition in Noisy Acoustic Environments 

      Gajic, Bojana (Dr. ingeniøravhandling; 2002:60, Doctoral thesis, 2002)
      This thesis presents a study of alternative speech feature extraction methods aimed at increasing robustness of automatic speech recognition (ASR) against additive background noise. Spectral peak positions of speech ...
    • Fiber DFB Lasers for Sensor Applications 

      Rønnekleiv, Erlend (Dr. ingeniøravhandling, 0809-103X; 1999:136, Doctoral thesis, 2000)