Search for dissertations about: "large technical systems"

Showing result 6 - 10 of 286 swedish dissertations containing the words large technical systems.

  2. 6. On the Deployment of Large-Scale High-Capacity Wireless Systems with Secondary Spectrum Access

    Author : Evanny Obregon; Jens Zander; Ki Won Sung; William Webb; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SRA - ICT; SRA - Informations- och kommunikationsteknik;

    Abstract : The avalanche in mobile data consumption represents a big challenge for mobile networks operators and national regulators. This thesis focuses on finding additional spectrum to meet this demand in a cost-efficient way by considering shared spectrum access. READ MORE

  4. 7. The Triumph of Technology Over Politics? : Reconstructing Television Systems: The Example of Sweden

    Author : Lena Ewertsson; Lars Ingelstam; Martin Kylhammar; Linköpings universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Interdisciplinary studies; Television broadcasting; cable television; satellite television; socio-technical systems; large technical systems; entrepreneurship; Industriförvaltnings AB Kinnevik; TV3; Sweden; Tvärvetenskap; Kabel-TV; Satellit-TV; Public service; Sverige; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Abstract : Based upon perspectives and concepts from social and historical research on technical systems, this dissertation describes and analyses events and processes relating to the dramatic change in television in Western Europe during the 1980s and early 1990s. In particular, it focuses on how Swedish television, conceived as a large socio-tecnical system, has shifted from a traditional 'public service' system to a more open and mixed system. READ MORE

  5. 8. Energy Storage Systems in Electrical Distribution Grids : Analysis and implementations of use cases for service stacking

    Author : Johannes Hjalmarsson; Cecilia Boström; Karin Thomas; Louise Ödlund; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ancillary services; congestion management; distribution grids; energy storage systems; scheduling optimization; service stacking.;

    Abstract : This Ph.D. thesis investigates the possibility of using energy storage systems for multiple services by implementing service stacking, with special emphasis on congestion management in distribution grids. READ MORE

  6. 9. Energy Efficiency Improvements of Tumble Dryers : -Technical Development, Laundry Habits and Energy Labelling

    Author : Lena Stawreberg; Lars Nilsson; Jonas Berghel; Roger Renström; Björn Palm; Karlstads universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; drying; domestic; energy efficiency; textile; energy labelling standard; Thermal energy engineering; Termisk energiteknik; Miljö- och energisystem; Environmental and Energy Systems;

    Abstract : Tumble dryers are becoming more and more common in ordinary households as a complement to the washing machine. Tumble dryers offer a fast drying cycle independent on weather conditions and require small space. They do, however, considering the large number of units use a large amount of electricity. READ MORE

  7. 10. Live help systems : an approach to intelligent help for Web information systems

    Author : Johan Åberg; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Computer science; Datavetenskap;

    Abstract : Since the creation of the World-Wide Web we have seen a great growth in the complexity of Web sites. There has also been a large expansion in number of Web sites and in amount of usage. As a consequence, more and more Web site users are having problems accomplishing their tasks, and it is increasingly important to provide them with support. READ MORE