Sökning: "Activated"

Visar resultat 21 - 25 av 2324 avhandlingar innehållade ordet Activated.

  1. 21. Ligand-activated proteolysis in nutrient signaling

    Författare :Claes Andréasson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Cells respond to changing nutrient availability and make adjustments in physiological processes. Central for making proper adjustments is the ability to execute appropriate changes in patterns of gene expression. LÄS MER

  3. 22. Pharmaceutical compounds; a new challenge for wastewater treatment plants

    Författare :Maja Dlugolecka; Elzbieta Plaza; Bengt Hultman; Nicklas Paxéus; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; activated sludge; biodegradation; granular activated carbon GAC ; membrane bioreactor MBR ; pharmaceutical compounds; wastewater; Water engineering; Vattenteknik;

    Sammanfattning : Analytical analyses conducted at the Himmerfjärden WWTP (285.000 PE connected) identified 70 pharmaceutical compounds belonging to different therapeutic classes. Such organic micropollutants at low detected concentration range of µg - ng l-1 did not affect the treatment processes at WWTP. LÄS MER

  4. 23. Hydraulic Behaviour in an Activated Sludge Tank : From Tracer Test through Hydraulic Modelling to Full-Scale Implementation

    Författare :Robert Kjellstrand; Högskolan i Borås; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Hydraulic behaviour in a large denitrifying activated sludge tank, located at the Rya Wastewater treatment plant (WWTP) in Göteborg Sweden, was investigated and optimized by using fullscale tracer test and hydraulic modelling. The Rya WWTP is a high loaded plant with a small footprint. Expansion of the site is limited due to several restrictions. LÄS MER

  5. 24. Use of the solids flux theory for activated sludge wastewater treatment process

    Författare :Puhua Li; KTH; []
    Nyckelord :Activated sludge process; Limiting solids flux; Nitrogen; Removal; Sedimentation; Sludge age; Sludge blanket; Solid flux theory; Volatile fraction; Wastewater treatment;

    Sammanfattning : .... LÄS MER

  7. 25. Activated Recrystallization of Non-Sag Tungsten Wire

    Författare :Zonghe Lai; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The objective of the present investigation was to explore the mechanism of activated recrystallization of heavily drawn doped (non-sag) tungsten wire material. The recrystallization can be induced at low temperatures by the presence of some metals, such as palladium, nickel, iron and others, on the wire surface, which is important as it can seriously deteriorate the mechanical properties of non-sag tungsten wires, when the wires serve as reinforcement material in metal matrix composites. LÄS MER