Sökning: "defects"

Visar resultat 16 - 20 av 1373 avhandlingar innehållade ordet defects.

  1. 16. Evolution of artificial defects during shape rolling

    Författare :Mirjana Filipovic; Stefan Jonsson; Per-Olov Perä; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; shape rolling; wire rod rolling; artificial defects; defect evolution; surface cracks; porosity; FEM; high speed steel; stainless steel; Other materials science; Övrig teknisk materialvetenskap; Initiering och utveckling av defekter under spårvalsning;

    Sammanfattning : Very often defects are present in rolled products. For wire rods, defects are very deleterious since the wire rods are generally used directly in various applications. For this reason, the market nowadays requires wire rods to be completely defect-free. Any wire with defects must be rejected as scrap which is very costly for the production mill. LÄS MER

  3. 17. Dependable Distributed Control System : Redundancy and Concurrency defects

    Författare :Bjarne Johansson; Thomas Nolte; Alessandro Papadopoulos; Luis Almeida; Mälardalens universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Computer Science; datavetenskap;

    Sammanfattning : Intelligent devices, interconnectivity, and information exchange are characteristics often associated with Industry 4.0. A peer-to-peer-oriented architecture with the network as the system center succeeds the traditional controller-centric topology used in today's distributed control systems, improving information exchange in future designs. LÄS MER

  4. 18. Atomistic simulations of defects

    Författare :Nils Sandberg; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik;

    Sammanfattning : .... LÄS MER

  5. 19. International Capital Flows : Effects, Defects and Possibilities

    Författare :Petroulas Pavlos; Rikard Forslid; Mårten Palme; Frode Steen; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; Nationalekonomi;

    Sammanfattning : Short-Term Capital Flows and Growth in Developed and Emerging Markets: A lot of attention has been directed towards recent financial crises. Empirical studies have found that short-term flows increase financial fragility and also increase the probability of financial crises. LÄS MER

  7. 20. On hydrogen point defects in perovskite oxides

    Författare :Erik Jedvik Granhed; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; density functional theory; oxyhydride; phonon; point defects; chemical expansion; polaron; BaZrO3; proton conductor; BaTiO3;

    Sammanfattning : Oxides based on the perovskite structure exhibit a surprisingly large diversity in materials properties and are found in many different applications, several related to clean energy technologies, such as solar cells, batteries and fuel cells. Many properties in materials are the result of lattice imperfections, commonly denoted \emph{defects}, and much effort is devoted to fine tuning materials properties through controlling the defects therein. LÄS MER