Sökning: "experiments"

Visar resultat 6 - 10 av 6903 avhandlingar innehållade ordet experiments.

  1. 6. Sintering of cemented carbides : experiments and modeling

    Författare :Sven Haglund; KTH; []
    Nyckelord :;

    Sammanfattning : During sintering of cemented carbides large volumetricshrinkage takes place. About half the volume of the originalgreen body is lost during this process. Due to lotal densitydifferentes within the green body undesired shape changes mayalso occur during sintering. LÄS MER

  3. 7. WC grain growth during sintering of cemented carbides : Experiments and simulations

    Författare :Karin Mannesson; John Ågren; Annika Borgenstam; Håkan Engqvist; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cemented carbide; Grain growth; Abnormal grain growth; Image analysis; Modeling; 3-D grain size distribution; Inverse Saltykov; Materials science; Teknisk materialvetenskap;

    Sammanfattning : Cemented carbides are composite materials consisting of a hard carbide and a ductile binder. They are powdermetallurgically manufactured, where liquid-phase sintering is one of the main steps. The most common cemented carbide consists of WC and Co and it is widely used for cutting tools. LÄS MER

  4. 8. Multi-unit common value auctions : theory and experiments

    Författare :Joakim Ahlberg; Lars Hultkrantz; Jan-Eric Nilsson; Jerker Holm; Statens väg- och transportforskningsinstitut; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Multi-Unit Auction; Common Value Auction; Laboratory Experiment; Game Theory; Economics; Q Economics; Q Economics; Economics;

    Sammanfattning : Research on auctions that involve more than one identical item for sale was,almost non-existing in the 90’s, but has since then been getting increasing attention. External incentives for this research have come from the US spectrum, sales, the European 3G mobile-phone auctions,  and Internet auctions. LÄS MER

  5. 9. Active Control of Noise in Ventilation Systems : Analysis and Experiments

    Författare :Martin Larsson; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : In many kinds of buildings, the ventilation system constitute a well known source of broadband noise. Traditionally, duct born noise is attenuated using passive resistive silencers which produce a high level of attenuation over a broad frequency range. However, they tend to become large and bulky if designed for low frequency attenuation. LÄS MER

  7. 10. Studies in climate change policy : theory and experiments

    Författare :Björn Carlén; Jason Shogren; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; nationalekonomi;

    Sammanfattning : Emission Quota Trade Among the Few: Laboratory Evidence of Joint Implementation Among Committed Countries. The purpose of the laboratory tests reported here is to identify a well-functioning design, tailored for an upcoming unique experiment using real-world relevant decision makers for carbon emission reductions trade among four countries committed to binding carbon emission limits, a form of so-called joint implementation. LÄS MER