Sökning: "Metaller"

Visar resultat 16 - 20 av 102 avhandlingar innehållade ordet Metaller.

  1. 16. Treatment conditions for the removal of contaminants from road runoff

    Författare :Magnus Hallberg; Gunno Renman; Jiri Marsalek; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dissolved matter; filter bed; particulate matter; sedimentation; suspended solids; Environmental engineering; Miljöteknik;

    Sammanfattning : The pollutant load in road runoff is related to traffic densities and road maintenance activities. Inurbanised areas treatment of road runoff is common and often considered necessary. The pollutantsare partitioned between the particulate and dissolved matter. However, the contaminantstend to have an affinity to the particulate material. LÄS MER

  3. 17. Weathering and water quality in an area with mineralized till, Liikavaara, northern Sweden

    Författare :Jonas Thunberg; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Applied Geology; Tillämpad geologi;

    Sammanfattning : Avhandlingen består av tre artiklar som behandlar olika aspekter på vittring och vattenkvalitet i området vid kopparfyndigheten Liikavaara Östra i norra Norrbotten. Moränen i området har naturligt förhöjda metallhalter, särskilt av koppar, och i lic-avhandlingen redovisas med olika metoder att naturligt vittring i detta område kan leda till förhöjda metallhalter i lokalt grundvatten i jämförelse med ett referensområde med låga metallhalter i moränen. LÄS MER

  4. 18. Impact wave process modeling and optimization in high energy rate explosive welding

    Författare :Mohammad Tabatabaee Ghomi; Jafar Mahmoudi; Nils Erik Hannerz; Mälardalens högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Explosive welding; Impact; Wave; Deformation; Velocity; Engineering mechanics; Teknisk mekanik; Energy- and Environmental Engineering; energi- och miljöteknik;

    Sammanfattning : Impact waves are used in many different industries and are classified according to whether they cause plastic or elastic deformations. In the plastic deformation mode, these waves can be used to produce special electrical joints. In the elastic deformation mode, they can be used to detect leakage or to measure the thickness of pipes. LÄS MER

  5. 19. Ab Initio Investigation of Interfacial and Grain Boundary Properties of Metals and Alloys

    Författare :Changle Li; Levente Vitos; Song Lu; Hongbin Zhang; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Materials Science and Engineering; Teknisk materialvetenskap;

    Sammanfattning : Phase interface (IF) and grain boundary (GB) are both common yet critical planar defects influencing the mechanical and physical properties of polycrystalline materials. Due to the complex nature of IFs and GBs in terms of structure and chemistry, determining the accurate excess energies associated with these defects is challenging for both experimental measurements and theoretical simulations. LÄS MER

  7. 20. Studies on surface proteins of Gram-positive bacteria

    Författare :Robert Janulczyk; Institutionen för experimentell medicinsk vetenskap; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ABC transport; complement; surface protein; Gram-positive; Streptococcus pyogenes; Streptococcus pneumoniae; Klinisk biologi; Clinical biology;

    Sammanfattning : Despite the availability of antibiotics and modern health care, infectious diseases continue to cause great suffering and costs. Bacterial surface proteins are important for the interaction between host and pathogen. LÄS MER