Sökning: "State railways"

Visar resultat 6 - 10 av 20 avhandlingar innehållade orden State railways.

  1. 6. Ramverk för en drift- och underhållsstrategi ur ett regelstyrt infrastrukturperspektiv

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

    Sammanfattning : Managing the Swedish state railways is a complex task where internal and external factors must be taken into consideration at the same time as demands for efficiency are made by owners, customers and end customers. Banverket (‘The National Swedish Rail Administration') was formed in 1988 by the Swedish State Railways, a public service corporation, being divided into an infrastructure unit, Banverket, and a transport enterprise, SJ (‘the Swedish State Railways'). LÄS MER

  3. 7. Train Based Automated Inspection for Railway Fastening System

    Författare :Praneeth Chandran; Matti Rantatalo; Rolf Dollevoet; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rail fastening system; clamps; visual inspection; differential eddy current sensor; machine learning; anomaly detection; Drift och underhållsteknik; Operation and Maintenance;

    Sammanfattning : Rail transportation is a sustainable mode of transportation and is a key enabler of the socio-economic development of modern society through passenger and freight services. Growth in overall transport demand has led to railways experiencing higher demand on operational capacity, service quality, and safety. LÄS MER

  4. 8. Staten som kapitalist : Marknadsanpassningen av de affärsdrivande verken 1976-1994

    Författare :Anders Berg; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Political science; public enterprises; public services; market orientation; tele communications; postal service; railway traffic; public sector reform; Statsvetenskap; Political science; Statsvetenskap; statskunskap; statskunskap;

    Sammanfattning : During the 1980's a transformation of the Swedish public sector took place. A term that has frequently been used to describe this chain of events is market orientation. This dissertation deals with the market orientation of a particular group of public authorities, the public enterprises. LÄS MER

  5. 9. Enablement of digital twins for railway overhead catenary system

    Författare :Amit Patwardhan; Ramin Karim; Rikard Granström; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Railway catenary; Maintenance; eMaintenance; LiDAR; Point Cloud; Digital Twin; Software Architecture; Drift och underhållsteknik; Operation and Maintenance;

    Sammanfattning : Railway has the potential to become one of the most sustainable mediums for passenger and freight transport. This is possible by continuous updates to the asset management regime supporting Prognostics and Health Management (PHM). Railway tracks and catenaries are linear assets, and their length plays a vital role in maintenance. LÄS MER

  7. 10. Aspects of improving punctuality : from data to decision in railway maintenance

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

    Sammanfattning : The increasing demand for transportation and sustainability makes railways attractive. The ongoing deregulation of state-owned railways means that many new organisations are entering the railway sector. LÄS MER