Search for dissertations about: "Johan Sandström"

Showing result 1 - 5 of 13 swedish dissertations containing the words Johan Sandström.

  2. 1. Organizational approaches to greening : technocentrism and beyond

    Author : Johan Sandström; Umeå universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; organizational greening; organizational approach; technocentrism; ecocentrism; anthropocentrism; reflexivity; postmodernism; environmental management; sustainable development; symbolic agora satisfiers;

    Abstract : How and why do organizations approach greening? How can we conceptualize approaches and how can we encourage reflexive dialogues on them? These are the main questions addressed in this qualitative study on organizational greening. The study sets off by discussing matters of research philosophy, arguing that our trust in science ought to be revised and that a more postmodern and constructionist philosophy might be a way to go. READ MORE

  4. 2. Analysis of rail breaks and insulated joint deterioration

    Author : Johan Sandström; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rail breaks; Heavy Haul; Insulated joints; Wheel flats; Railway mechanics; Material fatigue;

    Abstract : The thesis deals with fatigue related issues in the field of railway mechanics. In particular rail breaks and deterioration of insulating joints are investigated. The study is largely motivated by plans to increase allowed axle loads in Sweden. READ MORE

  5. 3. Wheels, Rails and Insulated Joints - Damage and Failure Probability at High Speed and Axle Load

    Author : Johan Sandström; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; rail breaks; probability; railway mechanics; contact mechanics; insulated joints; defects; fatigue;

    Abstract : The thesis deals with some fatigue related problems in railway mechanics related to increased axle loads and speeds. The focus is on defects and discontinuities in the wheel--rail system that affect the risk of fatigue and fracture of railway components such as wheels, rails and insulated joints. READ MORE

  6. 4. Does firm or household borrowing react to monetary policy shocks

    Author : Maria Sandström; Nils Gottfries; Johan Lyhagen; Knut Are Aastveit; Uppsala universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; Nationalekonomi;

    Abstract : .... READ MORE

  7. 5. The fracture mechanisms in duplex stainless steels at sub-zero temperatures

    Author : Johan Pilhagen; Pavel Korzhavy; Rolf Sandström; Kim Wallin; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Duplex stainless steel; Weldments; Delamination; Fracture toughness; Impact toughness; Cleavage fracture; Nickel;

    Abstract : The aim of the thesis was to study the susceptibility for brittle failures and the fracture process of duplex stainless steels at sub-zero temperatures (°C). In the first part of the thesis plates of hot-rolled duplex stainless steel with various thicknesses were used to study the influence of delamination (also known as splits) on the fracture toughness. READ MORE