Sökning: "Klas Johansson"

Visar resultat 1 - 5 av 15 avhandlingar innehållade orden Klas Johansson.

  1. 1. Cost efficient provisioning of wireless access : infrastructure cost modeling and multi-operator resource sharing

    Författare :Klas Johansson; Jens Zander; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telecommunication; Telekommunikation;

    Sammanfattning : .... LÄS MER

  3. 2. Cost Effective Deployment Strategies for Heterogenous Wireless Networks

    Författare :Klas Johansson; Jens Zander; Preben Mogensen; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telecommunication; Telekommunikation;

    Sammanfattning : Wireless access to the Internet is expected to be very valuable for both individuals and the society. However, advances in transmission technology alone may not be sufficient to support the anticipated demand for higher data rates and greater traffic volumes. LÄS MER

  4. 3. Fluid Dynamics and Erosion in a Fluidized Bed for Energy Production. A Numerical and Experimental Study

    Författare :Klas Johansson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; experimental validation; multiphase flow; energy; two-fluid model; environment;

    Sammanfattning : This thesis presents an experimental and a numerical investigation of fluid dynamics and erosion of heat transfer tubes in fluidized beds for energy conversion. The objective is to obtain recommendations for suitable models that can be used to predict the fluid dynamics and material wastage of heat exchanger tubes in fluidized beds. LÄS MER

  5. 4. Fluid dynamics and tube wastage in fluidized beds

    Författare :Klas Johansson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : .... LÄS MER

  7. 5. Heavy metal-induced activation of the murine immune system and autoimmunity : a comparative study of mercury and silver

    Författare :Uno Johansson; Klas Nordlind; Östergötlands Läns Landsting; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : The activation and proliferation ofT- and B-cells induced by treatment with mercuric chloride (HgC12) or silver·nitrate (AgN03) was studied in mouse strains genetically susceptible (SJL, A. SW, A.TH, BALE/C) or resistant (A.TL, BALB. LÄS MER