Sökning: "constitutional engineering"

Hittade 5 avhandlingar innehållade orden constitutional engineering.

  1. 1. Hot Cracking and Grain Boundary Weaknesses of Nickel - Based Superalloys

    Författare :Joel Håkan Andersson; [2008]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hot cracks; Notch rupture testing; Eutectic; Weldability; Varestraint testing; Grain boundary weaknesses; Superalloys;

    Sammanfattning : Abstract Grain boundary weaknesses of nickel-based superalloys not only materialize during service in the hot turbine engine sections but also during the weld manufacturing. The performance, in this respect, of the most commonly used alloys at Volvo Aero Corporation (VAC), 718 and the higher temperature capacity Waspaloy, are therefore the main subjects for this thesis. LÄS MER

  2. 2. Effect of Microstructure on Mechanical Properties of High Strength Steel Weld Metalsn

    Författare :Enda Keehan; [2004]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; strength; bainite; carbon; TEM; dilatometry; microstructure; impact toughness; neural network modelling; martensite; manganese; FEGSEM; nickel;

    Sammanfattning : The effects of variations in alloying content on the microstructure and mechanical properties of high strength steel weld metals have been studied. Based on neural network modelling, weld metals were produced using shielded metal arc welding with nickel at 7 or 9 wt. %, manganese at 2 or 0.5 wt. LÄS MER

  3. 3. Theoretical modeling of molar volume and thermal expansion

    Författare :Xiao-Gang Lu; KTH.; [2005]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; first-principles calculations; ab initio; Calphad; Debye-Grüneisen model; thermodynamic properties; elastic modulus; volume; thermal expansivity; pressure; Thermo-Calc; VASP; element; carbide; nitride; Materialvetenskap; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap;

    Sammanfattning : Combination of the Calphad method and theoretical calculations provides new possibilities for the study of materials science. This work is a part of the efforts within the CCT project (Centre of Computational Thermodynamics) to combine these methods to facilitate modeling and to extend the thermodynamic databases with critically assessed volume data. LÄS MER

  4. 4. Between the Paths of Modernity : The European Commission’s Shaping of European Nuclear Energy Policy between 1999 and 2012

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Julia Schwabecker; Linköpings universitet.; Linköpings universitet.; [2015]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sustainable development; European Union; nuclear energy; environmental policy; energy policy; frame analysis; reflexive modernization; Hållbar utveckling; EU; kärnkraftspolicy; miljöpolicy; energipolicy; frame analys; reflexiv modernisering;

    Sammanfattning : A powerful symbol of modernity, in its early days, nuclear energy was associated with images of progress and dreams of a better life. At the start of the European process of integration, it was hoped that peaceful cooperation in nuclear matters would bring about lasting peace in the European continent. LÄS MER

  5. 5. Changing the Game : Consociational Theory and Ethnic Quotas in Cyprus and New Zealand

    Detta är en avhandling från Uppsala : Institutionen för freds- och konfliktforskning

    Författare :Anna Jarstad; Uppsala universitet.; [2001]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SOCIAL SCIENCES Social sciences Political science Peace and conflict research; SAMHÄLLSVETENSKAP Socialvetenskap Statsvetenskap Freds- och konfliktforskning; Peace and Conflict Research; freds- och konfliktforskning; Peace and conflict research; consociationalism; game theory; ethnic conflict; divided society; conflict management; constitutional engineering; ethnic quotas; Cyprus; New Zealand; Freds- och konfliktforskning;

    Sammanfattning : This study addresses the question of what makes ethnic quota systems in parliament work to manage ethnopolitical violence. By a reconstruction of Arend Lijphart’s theory on consociationalism, two causal mechanisms are identified. The first mechanism levels the power balance of contending groups by permanent inclusion in parliament. LÄS MER