Sökning: "Johan Jansson"

Visar resultat 11 - 15 av 42 avhandlingar innehållade orden Johan Jansson.

  1. 11. Internetbranschen i Stockholms innerstad : En studie av agglomerationsfördelar, sociala nätverksrelationer och informationsflöden

    Författare :Johan Jansson; Anders Malmberg; Mats Lundmark; Arne Isaksen; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Social and economic geography; Internet industry; economic geography; agglomeration economies; social network relations; information flows; Stockholm; Sweden; Kulturgeografi; Human geography; Kulturgeografi;

    Sammanfattning : This thesis deals with questions concerning spatial agglomeration of economic activities. The object of study is the Internet industry in central Stockholm. LÄS MER

  3. 12. Car(ing) for our environment? : Consumer eco-innovation adoption and curtailment behaviors: The case of the alternative fuel vehicle

    Författare :Johan Jansson; Agneta Marell; Annika Nordlund; John Thøgersen; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Diffusion of innovations DOI ; value-belief-norm VBN theory; alternative fuel vehicles AFV ; eco-innovation; early adoption; curtailment behaviors; proenvironmental attitudes; innovation characteristics; Business studies; Företagsekonomi; företagsekonomi; Business Studies;

    Sammanfattning : Determinants influencing consumer eco-innovation adoption and green curtailment behaviors in a travel context are at the center of this thesis. Previous research on green consumer behavior has uncovered that internalized personal attitudinal factors such as values, beliefs, and norms are influential in determining mainly non-consumption and post-purchase behaviors. LÄS MER

  4. 13. Digester modelling for diagnostics and control

    Författare :Johan Jansson; Erik Dahlquist; Thore Berntsson; Mälardalens högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; pulp production; diagnostics; simulation; control; Cellulose and paper engineering; Cellulosa- och pappersteknik; Energy- and Environmental Engineering; energi- och miljöteknik;

    Sammanfattning : This thesis will show the possibility for the development and use of an on-line model for application to continuous digesters for pulp production. The model is developed by using a program called Dymola (Dynamic Modeling Laboratory). What makes the Dymola software so well suited is that the program solves equations simultaneously. LÄS MER

  5. 14. High performance adaptive finite element methods for turbulent fluid flow

    Författare :Niclas Jansson; Johan Hoffman; Sverker Holmgren; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Numerical analysis; Numerisk analys;

    Sammanfattning : Understanding the mechanics of turbulent fluid flow is of key importance for industry and society as for example in aerodynamics and aero-acoustics. The massive computational cost for resolving all turbulent scales in a realistic problem makes direct numerical simulation of the underlying Navier-Stokes equations impossible. LÄS MER

  7. 15. Fire Spalling of Concrete : Theoretical and Experimental Studies

    Författare :Robert Jansson; Johan Silfwerbrand; Ulrich Diedrichs; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Fire spalling of concrete is not a new phenomenon. To some degree there has always been a risk during rapid heating of concrete. Therefore, to a certain degree the effect of fire spalling is included in the bank of data from fire tests and fires on which our understanding of the fire resistance of concrete is based. LÄS MER