Sökning: "point contacts"

Visar resultat 16 - 20 av 103 avhandlingar innehållade orden point contacts.

  1. 16. Condition Monitoring of Water Contamination in Lubricating Grease for Tribological Contacts

    Författare :Nicholas J. Dittes; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machine Elements; Maskinelement;

    Sammanfattning : The purpose of this thesis is to summarize the research carried out that led to the development of measurement techniques which measure the water content of lubricating grease. A simple and effective grease mixing method for preparing grease samples was developed and tested for repeatability. LÄS MER

  3. 17. Collective Electron Dynamics in Mesoscopic Systems

    Författare :Oleksandr Zazunov; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Andreev reflection; Josephson effect; qubit; composite fermions; Andreev levels; resonant tunneling; superconductivity; high-T c superconductors; quantum point contact; fractional quantum Hall effect;

    Sammanfattning : This work is devoted to a theoretical investigation of collective electron dynamics in low dimensional materials and mesoscopic structures. A common feature of these studies is the focus on the properties of the low energy dynamics of conduction electrons. One class of studied materials is the high-Tc superconductor Nd2CuO4 and related compounds. LÄS MER

  4. 18. Functional Nanostructures for Gas Sensors

    Författare :Hossein Fashandi; Per Eklund; Hans Högberg; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This research focuses on three main topics within the aims of FUNMAT, which are:Ohmic contacts to high-temperature chemical gas sensors.Studies of catalytic monolayers on active gate metal in SiC-based gas sensors.Investigating potential sensing properties of the nanoscale material MXene. LÄS MER

  5. 19. Akademibondens plikt, universitetets rätt : Feodala produktionsförhållanden vid Uppsala universitets gods 1650-1790

    Författare :Anders Thoré; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; History; customary tenants; landlords; peasants of the university; the estate of Uppsala University; copyholds of the university; feudal mode of production; feudal relations of production; forces of production; means of production; class struggle; exploitation; coercion; resistance; possessery rights; use-rights; rent; Uppland; Västmanland; Sweden; Historia; History subjects; Historieämnen; historia; History;

    Sammanfattning : This doctoral dissertation studies the relationship between customary tenants (landbor) and landlords in Sweden during the 17th and 18th centuries. This was a basic relationship within Swedish society and thus fundamental to economic, social, juridical and political life. LÄS MER

  7. 20. The Peshitta and the versions : A study of the Peshitta variants in Joshua 1-5 in relation to their equivalents in the ancient versions

    Författare :Johann E. Erbes; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Languages and linguistics; Old Testament; Book of Joshua; Hebrew; Masoretic Text; Peshitta; Syriac manuscripts; Syriac; Targum; Septuagint; Syro-Hexapla; Coptic; Ethiopic; Vulgate; textual criticism; translation technique; Språkvetenskap; Languages and linguistics; Språkvetenskap; semitiska språk; Semitic Languages;

    Sammanfattning : The dissertation focuses on the relationship between the Peshitta readings and their equivalent readings in the ancient versions. The purpose of this study is to discover the possible influences of the Masoretic Text on the one hand, and the versions, especially the Septuagint, on the other. The material is too scarce to attempt creating a stemma. LÄS MER