Sökning: "Final causes"

Visar resultat 16 - 20 av 138 avhandlingar innehållade orden Final causes.

  1. 16. Process chain simulation of forming, welding and heat treatment of Alloy 718

    Författare :Joachim Steffenburg-Nordenström; Lars-Erik Svensson; Lars-Erik Lindgren; Fredrik Niklasson; Högskolan Väst; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Forming; Welding; Stress relieve annealing; Heat treatment; Finite Element Simulation; Manufacturing process chain; Alloy 718; Production Technology; Produktionsteknik; Manufacturing and materials engineering; Produktions- och materialteknik;

    Sammanfattning : Manufacturing of aero engine components requires attention to residual stress and final shape of the product in order to meet high quality product standards.This sets very high demands on involved manufacturing steps to meet design requirements. LÄS MER

  3. 17. The Morphology of Laser Arc Hybrid Welds

    Författare :Jan Frostevarg; Veli Kujanpää; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Manufacturing Systems Engineering; Produktionsutveckling;

    Sammanfattning : This thesis is about formation of surface imperfections formed in welding when using the manufacturing methods of laser welding and laser arc hybrid welding. In hybrid welding a traditional arc welding source and a laser share the same melt pool, making the process even more complex. LÄS MER

  4. 18. Aggregating Case Studies of Vehicle Crashes by Means of Causation Charts : An Evaluation and Revision of the Driving Reliability and Error Analysis Method

    Författare :Jesper Sandin; Per Lövsund; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Accident; Cause; Classification; Characteristics; Driver; Error; 81 Road: Accidents; 81 Road: Accidents; 841 Road: Road user behaviour; 841 Road: Road user behaviour;

    Sammanfattning : There is a need for increased knowledge about causes to motor-vehicle crashes and their prevention. Multidisciplinary in-depth case studies can provide detailed causation data that is otherwise unattainable. Such data might allow the formulation of hypotheses of causes and causal relationships for further study. LÄS MER

  5. 19. De arbetslösa och 1930-talskrisen : en kollektivbiografi över hjälpsökande arbetslösa i Stockholm 1928-1936

    Författare :Thomas Fürth; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Arbetslöshet historia Stockholm 1920-talet 1930-talet;

    Sammanfattning : Few states of crisis are more readily associated with each other than mass unemployment and the depression of the 1930s. The depression and its accompanying widespread and prolonged unemployment were experienced by contemporaries as a time of unrest. LÄS MER

  7. 20. Idioternas tid : Tankestilar inom den tidiga idiotskolan 1840 - 1872

    Författare :Owe Rören; Anders Gustavsson; Birgit Kirkebaek; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; history of education; idiocy; thought-style; Education; Pedagogik; pedagogik; Education;

    Sammanfattning : The purpose of this thesis is to increase our knowledge about the thinking of idiocy behind the formation of the first institutional schools for idiots in the Scandinavian countries. The source materials – publications, articles, documents, photos – has been studied and interpreted through a hermeneutic existential method. LÄS MER