Search for dissertations about: "Operators"

Showing result 16 - 20 of 807 swedish dissertations containing the word Operators.

  2. 16. Interacting with command and control systems : Tools for operators and designers

    Author : Pär-Anders Albinsson; Linköpings universitet; []
    Keywords : Geographical information systems; Military operations; Command and control research; Command and control systems; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Command and control is central in all distributed tactical operations such as rescue operations and military operations. It takes place in a complex system of humans and artefacts, striving to reach common goals. READ MORE

  4. 17. Studies of safety and critical work situations in nuclear power plants : a human factors perspective

    Author : Lena Kecklund; Erik Hollnagel; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Safety; nuclear power; operators; work-related factors; performance; human error; annual outage; MTO; Psychology; Psykologi; psykologi; Psychology;

    Abstract : The purpose of this thesis was to develop and apply different approaches for analyzing safety in critical work situations in real work settings in nuclear power plants, and also to identify safety enhancing measures by using the framework of interaction between human, organizational and technical subsystems (MTO, man-technology-organization). A Cognitive Psychology as well as a Stress Psychology framework was used. READ MORE

  5. 18. G-convergence and homogenization for some monotone operators with multiple scales

    Author : Liselott Flodén; Mittuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; G-convergence; homogenization; monotone operators; multiscale convergence; parabolic equations; MATHEMATICS; MATEMATIK;

    Abstract : This thesis deals with questions concerning the convergence of sequences of functions and operators. G-convergence is studied for elliptic and parabolic equations and the necessary investigations of the properties of certain monotone operators are made. READ MORE

  6. 19. Continuity and compositions of operators with kernels in ultra-test function and ultra-distribution spaces

    Author : Yuanyuan Chen; Joachim Toft; Nenad Teofanov; Linnéuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Composition; modulation spaces; positivity; pseudo-differential operators; Schatten-von Neumann operators; twisted convolutions; ultra-distributions; Matematik; Mathematics;

    Abstract : In this thesis we consider continuity and positivity properties of pseudo-differential operators in Gelfand-Shilov and Pilipović spaces, and their distribution spaces. We also investigate composition property of pseudo-differential operators with symbols in quasi-Banach modulation spaces. READ MORE

  7. 20. Reiterated homogenization and G-convergence for some sequences of monotone operators

    Author : Marianne Olsson; Mårten Gulliksson; Anders Holmbom; Nils Svanstedt; Mittuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Homogenization; G-convergence; Multiple scales; Monotone operators; MATHEMATICS; MATEMATIK;

    Abstract : In this thesis, the main focus is on G-convergence and homogenization of monotone parabolic equations with multiple scales. This kind of equation is examined with respect to existence and uniqueness of the solution, in view of the properties of some monotone operators. READ MORE