Sökning: "jörgen hansson"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden jörgen hansson.

  1. 1. Measurement and Simulation Based Techniques for Real-Time Systems Analysis

    Författare :Markus Lindgren; Hans Hansson; Jörgen Hansson; Uppsala University; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer science; Datavetenskap; Datavetenskap;

    Sammanfattning : Rigorous methods for design and implementation of safety critical real-time systems are vital to avoid loss of human lives and/or severe economic losses.  Unfortunately, many of these systems are designed and evaluated using ad-hoc techniques. LÄS MER

  3. 2. Analysis and control of a hybrid vehicle powered by free-piston energy converter

    Författare :Jörgen Hansson; Mats Leksell; Chandur Sadarangani; Anders Malmquist; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; free-piston energy converter; FPEC; series hybrid electric vehicle; SHEV; power management; energy management; powertrain evaluation; equivalent consumption minimisation; ECMS; linear engine; Electrical engineering; Elektroteknik;

    Sammanfattning : The introduction of hybrid powertrains has made it possible to utilise unconventional engines as primary power units in vehicles. The free-piston energy converter (FPEC) is such an engine. It is a combination of a free-piston combustion engine and a linear electrical machine. LÄS MER

  4. 3. Köp av tjänster för ledningskompetens - en polyfonisk process

    Författare :Jörgen Hansson; Per-Olof Berg; Andreas Werr; Flemming Poulfelt; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Purchase; professional services; management advice services; buyer-seller relationships; polyphony; polyphonic process; polyphonic organization; activity theory; focus group; Business studies; Företagsekonomi; Business Administration; företagsekonomi;

    Sammanfattning : The thesis´ aim is to deepen the understanding about what shapes and characterises the purchase process for management advice services. Such externally, acquired services have increased substantially, and in relation to the services´ impact on management decisions the theoretical and practical understanding of the purchase process is lagging behind. LÄS MER

  5. 4. Value-driven multi-class overload management in real-time database systems

    Författare :Jörgen Hansson; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer science; Datavetenskap;

    Sammanfattning : In complex real-time applications, real-time systems handle significant amounts of information that must be managed efficiently, motivating the need for incorporating real-time database management into real-time systems. However, resource management in real-time database systems is a complex issue. LÄS MER

  7. 5. QoS Control of Real-Time Data Services under Uncertain Workload

    Författare :Mehdi Amirijoo; Jörgen Hansson; Sang Son; Svante Gunnarsson; Joseph Hellerstein; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; real-time system; database; feedback control; Computer science; Datavetenskap;

    Sammanfattning : Real-time systems comprise computers that must generate correct results in a timely manner. This involves a wide spectrum of computing systems found in our everyday life ranging from computers in rockets to our mobile phones. The criticality of producing timely results defines the different types of realtime systems. LÄS MER