Sökning: "Anders Nordenfelt"

Hittade 3 avhandlingar innehållade orden Anders Nordenfelt.

  1. 1. Self Oscillations and Cooling of Carbon Based NEMS Devices

    Författare :Anders Nordenfelt; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nano electro-mechanics; carbon nanotubes;

    Sammanfattning : We investigate the electromechanical properties of a number of system geometries featuring a doubly clamped Carbon Nanotube or Graphene sheet with a deflection sensitive resistance and an electronic feedback in the form of a Lorentz force or an electrostatic attraction. The nanotube is subjected to a constant current- or voltage bias and it is shown that when the electro-mechanical coupling exceeds a certain critical value the system becomes unstable to self-excitations of the mechanical vibrations accompanied by oscillations in the voltage drop and current through the nanotube. LÄS MER

  3. 2. Mental health : a philosophical analysis

    Författare :Per-Anders Tengland; Lennart Nordenfelt; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Health; mental health; positive mental health; acceptable mental health; ill health; normality; ability; mental ability; ability to co-operate; practical rationality; measuring mental health; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Sammanfattning : The present dissertation is an attempt to analyze, philosophically, the notion of "positive mental health". In doing so the author presents a number of suggestions found in the literature. The discussion of these suggestions leads to a number of general conclusions. LÄS MER

  4. 3. Att vara i särklass : om delaktighet och utanförskap i gymnasiesärskolan

    Författare :Martin Molin; Lennart Nordenfelt; Anders Gustavsson; Jerry Rosenqvist; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; participation; intellectual disability; special education; autonomy; belonging; involvement; specialundervisning; gymnasieskolan; Sverige; personer med funktionshinder; delaktighet; gymnasiesärskolan; utvecklingsstörning; Disability research; Handikappsforskning; Social work; Socialt arbete;

    Sammanfattning : In the Swedish debate concerning disability issues it has been shown, as in many other countries, that the concept ‘participation’ has been used in a very vague and obscure way. For example, at an ideological level the concept often refers to ‘accessibility’. LÄS MER