Sökning: "Jan Pettersson"

Visar resultat 1 - 5 av 30 avhandlingar innehållade orden Jan Pettersson.

  1. 1. Finite Element Analysis of Case-Hardened Roller Bearings

    Författare :Jan Pettersson; Roland Fortunier; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis deals with the material modelling of case-hardened bearing steel, with special reference to hardened roller bearing components. The result of a case-hardening process is a hardened component with substantially improved material properties within a restricted region beneath the heat-treated surface. LÄS MER

  3. 2. Kristidsekonomi och företagsutveckling : industrin i Uppsala län 1939-49

    Författare :Jan-Erik Pettersson; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economic history; Ekonomisk historia;

    Sammanfattning : .... LÄS MER

  4. 3. Three Empirical Studies on Development : Democracy, the Resource Curse and Aid

    Författare :Jan Pettersson; Fabrizio Zilibotti; Ragnar Torvik; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Democracy; Economic Growth; Consolidation; Political Systems; Natural Resources; Appropriability; Property Rights; Institutions; Development; Foreign Aid; Fungibility; Poverty; Public Expenditure; Economics; Nationalekonomi;

    Sammanfattning : This thesis presents three self-contained essays focusing on empirical questions in growth and development economics. Each article addresses specific questions on why countries perform differently. LÄS MER

  5. 4. Glokal institutionalisering : mötet mellan globala och lokala idéer i kommunal näringspolitik för hållbar utveckling

    Författare :Conny Pettersson; Jan Olsson; Marie Louise von Bergmann Winberg; Örebro universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Municipal economic policy for sustainable development; United Nations’ thoughts on sustainability; the globalisation of sustainable thinking; glocal institutionalisation; spreading and institutionalisation of ideas; double dynamics of translation; agenda 21; faktor 10; Abduction; Karlskoga; Hällefors; Political science; Statsvetenskap; Political Science; Statskunskap;

    Sammanfattning : This thesis treats the globalisation of processes for sustainable development. It focuses, by means of both empirical and theoretical arguments, on the ways in which the United Nations’ thoughts on sustainability have been circulated, adopted and implemented in the economic policies of a Swedish municipality. LÄS MER

  7. 5. New concepts and techniques for quantification and trace analysis by gas chromatography

    Författare :Johan Pettersson; Johan Roerrade; Jan Åke Jönsson; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry; quantitative accuracy; calibration; extenal standards; valume contraction; molar excess volume; Kemi; Chemistry; Kemi;

    Sammanfattning : In the first part of this thesis, strategies for avoiding systematic errors when quantifying the main components in mixtures of solvents has been developed (paper I). It is shown that variations in density caused by variations in sample composition and/or volume contraction need to be taken into account. In this way, quantification can be improved. LÄS MER