Sökning: "2007"

Visar resultat 21 - 25 av 4339 avhandlingar innehållade ordet 2007.

  1. 21. Strengthening of timber structures with flax fibres

    Författare :Alann Andre; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träbyggnad; Timber Structures;

    Sammanfattning : The natural defects present in timber are the source of large variations in mechanical properties. This drawback has been partially counteracted with the use of Engineered Wood Products EWP (glulam, composite I-beam, parallel strand lumber, etc.) instead of solid wood. LÄS MER

  3. 22. Towards dynamic array processing for GNSS software receivers

    Författare :Staffan Backén; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industriell elektronik; Industrial Electronics;

    Sammanfattning : Since the very first Global Positioning System satellite was launched in 1978, Global Navigation Satellite Systems (GNSS) have developed into a world wide utility, providing everyone with an affordable method for determining accurate position and time. However, the system is susceptible to multipath (when the signal is reflected off a surface), interference (other signals in the same frequency band) and attenuation (for example canopies blocking some of the signal energy). LÄS MER

  4. 23. Production assurance : concept, implementation and improvement

    Författare :Javad Barabady; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance;

    Sammanfattning : The dynamic business environment is characterized by short-term and long- term uncertainties in the business processes, combined with a short-term focus on meeting customers' and share-holders' requirements. Therefore, making correct decisions in a dynamic business environ-ment is a major challenge for production plant engineers and managers all over the world. LÄS MER

  5. 24. Algorithms for aggregate information extraction from sequences

    Författare :Fredrik Bengtsson; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dependable Communication and Computation Systems; Kommunikations- och beräkningssystem;

    Sammanfattning : In this thesis, we propose efficient algorithms for aggregate information extraction from sequences and multidimensional arrays. The algorithms proposed are applicable in several important areas, including large databases and DNA sequence segmentation. LÄS MER

  7. 25. Designing R&D organisations in process industry : essays on context, process, and structure

    Författare :Markus Bergfors; Luleå tekniska universitet; []
    Nyckelord :;

    Sammanfattning : This doctoral thesis reports on a research project in R&D organisational design carried out at Promote - the Centre for Management of Innovation and Technology in Process Industry. The thesis itself consists of six appended papers and an extended summary covering the background of the project, the theoretical frameworks and methodologies used in studying R&D organisations in process industry, as well as a discussion of the research findings. LÄS MER