Search for dissertations about: "cold surface layer"

Showing result 11 - 15 of 46 swedish dissertations containing the words cold surface layer.

  2. 11. Modeling of frost heave and surface temperatures in roads

    Author : Åke Hermansson; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Soil Mechanics; Geoteknik;

    Abstract : Temperature and moisture are very essential parameters when describing the condition of a pavement. In most cases, a high moisture content involves a decreased bearing capacity and, consequently, a shorter durability of the pavement. A frozen pavement has a greater bearing capacity than the corresponding construction in spring or late autumn. READ MORE

  4. 12. Influence of grinding operations on surface integrity and chloride induced stress corrosion cracking of stainless steels

    Author : Nian Zhou; Rachel Pettersson; Ru Lin Peng; Clara Anghel; Per-Lennart Osk Larsson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kemi; Chemistry; Steel Forming and Surface Engineering;

    Abstract : Stainless steels were developed in the early 20th century and are used where both the mechanical properties of steels and corrosion resistance are required. There is continuous research to allow stainless steel components to be produced in a more economical way and be used in more harsh environments. READ MORE

  5. 13. Effects of coastal forcing on turbulence and boundary-layer structure

    Author : Linda Ström; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Geovetenskap; Earth sciences; Geovetenskap; Meteorology; meteorologi;

    Abstract : Coastal mountains of significant elevation impose constraints for the surrounding flow. The aim of this study is to describe the modifications of the marine atmospheric boundary layer that occur offshore of the west coast of the United States. Aircraft measurements, up to 1000 km off the coast from two experiments, are used. READ MORE

  6. 14. Nanoparticle assisted tribofilm formation and material transfer studied with SEM and TEM

    Author : István Zoltán Jenei; Stefan Csillag; Urban Wiklund; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; WS2 inorganic fullerene-like nanoparticles; lubrication; tribofilm; SEM; TEM; EELS; EDS; coating; surface analysis; friction; wear; titanium; material transfer; fysik; Physics;

    Abstract : The discovery and subsequent synthesis of metal containing fullerenes- IFS (Inorganic Fullerene-like Structures) by R. Tenne et al. has generated considerable scientific interest with great potential impact in many industrial application areas such as lubrication. READ MORE

  7. 15. Freezing Temperature Flows in Railway Tunnels and its Consequence on the Rock Supporting Structure, the Rock and the Reinforcing Elements

    Author : Anna Andrén; Lars-Olof Dahlström; Erling Nordlund; Lars O Ericsson; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tunnel; frost penetration; ice formation; freeze-thaw test; frost shattering; temperature measurement; maintenance; degradation of rock and shotcrete; cold climate; Tunnel; köldinträngning; isbildning; frystester; frostsprängning; temperaturmätning; underhåll; nedbrytning av berg och sprutbetong; kallt klimat; Mining and Rock Engineering; Gruv- och berganläggningsteknik;

    Abstract : Water in the surrounding rock mass flows into the tunnel via naturally occurring joints and via cracks caused by the blasting used to excavate the tunnel. The most common method in Sweden to reduce or prevent leakage problems are first and foremost the use of grouting. READ MORE