Search for dissertations about: "Johan Linden"

Showing result 1 - 5 of 10 swedish dissertations containing the words Johan Linden.

  2. 1. On Safe and Secure Communication in Process Automation

    Author : Johan Åkerberg; Mats Björkman; Maria Lindén; Mikael Gidlund; Lutz Rauchhaupt; Mälardalens högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Computer Science; datavetenskap;

    Abstract : In the process industry, network and system security have become important since the introduction of Ethernet-based fieldbus protocols. As an example, a successful attack on a power plant, supporting large cities with energy, could result in a temporal but total power loss. Such attacks could be devastating for the society. READ MORE

  4. 2. On Security in Safety-Critical Process Control

    Author : Johan Åkerberg; Mats Björkman; Maria Lindén; Bengt Ahlgren; Mälardalens högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Computer and systems science; Data- och systemvetenskap; Computer Science; datavetenskap;

    Abstract : This Licentiate thesis is about security in automation networks with emphasis on fieldbus communication. In the process industry, network and system security have become even more important since the introduction of Ethernet-based fieldbus protocols. READ MORE

  5. 3. Circumpolar impacts of herbivores on Arctic tundra vegetation

    Author : Elin Lindén; Johan Olofsson; Maja K. Sundqvist; Mariska te Beest; Elisabeth S. Bakker; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; herbivores; grazing; Arctic; circumpolar; tundra; vegetation; plant defence; secondary metabolites; shrub birch; exclosures; vegetation; species diversity; biology; biologi;

    Abstract : Arctic tundra vegetation provides many ecological services that have implications for the global climate. However, the tundra biome is currently changing in response to increasing temperatures. Herbivores may mitigate some of these responses to warming through their impact on Arctic vegetation. READ MORE

  6. 4. Mössbauer Spectroscopy of Meteoritic and Synthetic Fe-Ni Alloys

    Author : Yassir Ahmed Mohamed Abdu; Hans Annersten; Tore Ericsson; Johan Linden; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Meteorites; Tetrataenite; Antitaenite; Mössbauer spectroscopy; Mechanical alloying; Fe-Ni alloys; High pressure; Geovetenskap; Earth sciences; Geovetenskap; mineralogi; petrologi och tektonik; Mineral Chemistry; Petrology and Tectonics;

    Abstract : This thesis reports on the results of investigating Fe-containing minerals in meteorites, with focus on Fe-Ni minerals and their magnetic properties, along with some synthetic Fe-Ni analogues. The New Halfa meteorite, which fell in Sudan 1994, has been studied using Mössbauer spectroscopy, X-ray diffraction, and electron microprobe analysis techniques, and classified as an ordinary L-type chondrite of petrologic type 4. READ MORE

  7. 5. Evaluating Success Factors of Health Information Systems

    Author : Shahryar Eivazzadeh; Peter Anderberg; Johan Sanmartin Berglund; Tobias Larsson; Markus Fiedler; Maria Lindén; Blekinge Tekniska Högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Health Information Systems; Health Information Technology; Health Informatics; eHealth; Digital Health; Evaluation; Information Systems Evaluation; Health Technology Assessment; User Satisfaction; Technophilia; Evaluation and Research Ethics; System Design;

    Abstract : Health information systems are our technological response to the growing demand for health care. However, their success in their mission can be challenging due to the complexity of evaluating technological interventions in health care. In the series of studies compiled in this dissertation, we looked at the evaluation of these systems. READ MORE