Search for dissertations about: "Informationsteknik"

Showing result 1 - 5 of 616 swedish dissertations containing the word Informationsteknik.

  1. 1. Track circuits’ robustness : Modeling, measurement and simulation

    Author : Emilio Rodriguez; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Track circuit; Relay; False positive signals; Signalling in railway; Modelling; Simulation; Testing; Robustness; Interoperability; Reliability; Railway Infrastructure; Technology - Electrical engineering; electronics and photonics; Information technology - Telecommunication; Information technology - Computer engineering; Technology - Engineering physics; Information technology - Systems engineering; Teknikvetenskap - Elektroteknik; elektronik och fotonik; Informationsteknik - Telekommunikation; Informationsteknik - Datorteknik; Teknikvetenskap - Teknisk fysik; Informationsteknik - Systemteknik; Drift och underhållsteknik; Operation and Maintenance;

    Abstract : In countries with rough weather conditions, frequent delays cause railway companies to waste time and money. Many of these delays are related to the train detection systems, as the old DC track circuits are still used in some countries, including Sweden, our case study. READ MORE

  2. 2. Dealing with Missing Mappings and Structure in a Network of Ontologies

    Author : Qiang Liu; Patrick Lambrix; Nahid Shahmehri; Henrik Eriksson; He Tan; Heiner Stuckenschmidt; Linköpings universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Ontology; Ontology Engineering; Ontology Alignment; Ontology Debugging; Information technology; Informationsteknik;

    Abstract : With the popularity of the World Wide Web, a large amount of data is generated and made available through the Internet everyday. To integrate and query this huge amount of heterogeneous data, the vision of Semantic Web has been recognized as a possible solution. One key technology for the Semantic Web is ontologies. READ MORE

  3. 3. Digital Content Networks : The Past, the Present and Decentralizing

    Author : Tommo Reti; Marko Turpeinen; Nils Enlund; Jussi Kangasharju; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Information technology; Informationsteknik; SRA - ICT; SRA - Informations- och kommunikationsteknik;

    Abstract : This thesis presents a solution-oriented analysis of current issues in digital content distribution management and content networks. The findings support the view that the recent development in the area has created a few congestion points, both in content distribution and content business, that gather increasing technical, social, financial, and political influence in the world. READ MORE

  4. 4. Performance Analysis of Application-Specific Multicore Systems on Chip

    Author : Iyad Al Khatib; Axel Jantsch; Jari Nurmi; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Multicore; System on Chip; Performance; Information technology; Informationsteknik;

    Abstract : The last two decades have witnessed the birth of revolutionary technologies in data communications including wireless technologies, System on Chip (SoC), Multi Processor SoC (MPSoC), Network on Chip (NoC), and more. At the same time we have witnessed that performance does not always keep pace with expectations in many services like multimediaservices and biomedical applications. READ MORE

  5. 5. Power control and Admission Control in Cellular Radio Systems

    Author : Michael Andersin; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Information technology; Informationsteknik; SRA - ICT; SRA - Informations- och kommunikationsteknik;

    Abstract : .... READ MORE