Sökning: "RAMS"

Visar resultat 11 - 15 av 15 avhandlingar innehållade ordet RAMS.

  1. 11. Dependability and safety evaluation of railway signalling systems based on field data

    Författare :Amparo Morant; Patrik Hilber; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance Engineering;

    Sammanfattning : Railway signalling systems can be considered a group of complex systems that together provide control, supervision and protection of railway operation. When a failure occurs in the railway signalling system, other safety mitigation measures are put into place to continue railway operation, e.g. LÄS MER

  3. 12. Systems Dependability Engineering for Wind Power Applications : Challenges, Concepts, and System-Level Methodologies

    Författare :Idriss El-Thalji; Anders Karlsson; Linnéuniversitetet; []
    Nyckelord :System Dependability; Systems Engineering; Terotechnology; Terotechnology; Systemekonomi;

    Sammanfattning : Complexity and uncertainty have impacted wind power systems and their applications.Commercial wind power asset exhibits complex system behaviour due tostochastic loading characteristics of its installation context. However, differentstakeholders’ practices in whole life cycle processes try to treat multi-disciplinarycomplexity issues. LÄS MER

  4. 13. Optimization of track geometry maintenance : a study of track geometry degradation to specify optimal inspection intervals

    Författare :Iman Arasteh khouy; Per-Olof Larsson-Kråik; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance;

    Sammanfattning : Railway infrastructure is a complex system which comprises different subsystems. Long useful life span is one of the important aspects of this prime mode of transport. The useful life length of its assets is highly dependent on the maintenance and renewal strategy used during its life cycle. LÄS MER

  5. 14. Assays for monitoring HIV therapy in low-middle income countries

    Författare :Eva Agneskog; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The purpose of this thesis was to develop and/or evaluate assays for HIV viral load (VL) monitoring and HIV drug resistance testing of potential importance for research studies and clinical care in low- and middle income countries (LMICs). This was achieved using reverse transcriptase based (RT) assays and blood samples from Vietnamese and Swedish HIV-1 infected patients. LÄS MER

  7. 15. Railway Infrastructure Robustness : Attributes, evaluation, assurance and improvement

    Författare :Per Norrbin; Ragnar Hedström; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance Engineering;

    Sammanfattning : According to the European program Horizon 2020, multifaceted challenges in transportinfrastructure include 1) making infrastructure more resilient to keep pace with the increasing mobility needs; 2) reducing the impact of infrastructure on the environment;and 3) dealing with declining resources to maintain and upgrade transport infrastructure. New design and maintenance approaches must be developed to handle these issues, ascurrent methods are inadequate. LÄS MER