Sökning: "transition regime"

Visar resultat 16 - 20 av 158 avhandlingar innehållade orden transition regime.

  1. 16. Enabling socio-technical transitions – electric vehicles and high voltage electricity grids as focal points of low emission futures

    Författare :Martin Albrecht; Åsa Svenfelt; Göran Finnveden; Jonas Åkerman; Anna Kramers; Måns Nilsson; Anna Bergek; KTH; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Socio-technical system; innovation system; transition; MLP; TIS; low emission future; electric vehicles; high voltage transmission grid; Sweden; Norway; Denmark; Finland; United Kingdom; Planering och beslutsanalys; Planning and Decision Analysis;

    Sammanfattning : Today humankind is facing numerous sustainability challenges that require us to question CO2 intensive practices like those present in the transport and energy sector. To meet those challenges, many countries have adopted ambitious climate targets. Achieving such targets requires an understanding of the wider socio-technical context of transitions. LÄS MER

  3. 17. Öst är Väst men Väst är bäst : Östtysk identitetsformering i det förenade Tyskland

    Författare :Sofi Gerber; Mats Lindqvist; Birgitta Almgren; Markus Idvall; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; East German identity; GDR; unification of Germany; East-West-dichotomy; dislocation; transition; post-socialism; discourse theory; life story interviews; narrative; östtysk identitet; DDR; Tysklands enande; Öst-Väst-dikotomi; dislokation; diskursteori; Ethnology; Etnologi; Ethnology; etnologi;

    Sammanfattning : In the German Democratic Republic (GDR) the overthrow of the socialist regime did not only bring about both an economic and political shift, it resulted also in the inclusion of the GDR into the Federal Republic of Germany. The fall of the Wall brought with it transformations in everyday life as well as changes in social identities. LÄS MER

  4. 18. Modelling of Turbulent Flow and Heat Transfer for Building Ventilation

    Författare :Peng Shia-Hui; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; large eddy simulation; turbulent buoyant convection; ventilation performance assessment; purging flow rate; SGS modelling; ventilation flow; stochastic Markov chain model; turbulence modelling; LRN k-w model; two-equation models; building ventilation; transfer probability; transition regime; modified SGS buoyancy model; energy backscatter;

    Sammanfattning : This thesis contributes to studies on the assessment of building ventilation performance and the development of turbulence models accounting for Low-Reynolds-number (LRN) effects and buoyant convection with heat transfer. Assessments of building ventilation performance are discussed with respect to indoor air distribution and passive contaminant dispersion. LÄS MER

  5. 19. Boundary layer streaks as a novel laminar flow control method

    Författare :Sohrab Sattarzadeh Shirvan; Jens H. M. Fransson; Edward B. White; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; boundary layer stability; laminar to turbulent transition; laminar flow control; drag reduction; Tollmien-Schlichting waves; oblique waves; streaky boundary layers; miniature vortex generators; discrete suction;

    Sammanfattning : A novel laminar flow control based on generation of spanwise mean velocity gradients (SVG) in a flat plate boundary layer is investigated where disturbances of different types are introduced in the wall-bounded shear layer. The experimental investigations are aimed at; (i) generating stable and steady streamwise streaks in the boundary layer which set up spanwise gradients in the mean flow, and (ii) attenuating disturbance energy growth in the streaky boundary layers and hence delaying the onset of turbulence transition. LÄS MER

  7. 20. The Legal Regime of International Watercourses : Progress and Paradigms Regarding Uses and Environmental Protection

    Författare :Katak Malla; Said Mahmoudi; Phoebe Okowa; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Legal regimes of navigational use; non-navigational uses and environmental protection; equitable utilization; sustainable development and integrated management; International law; Folkrätt;

    Sammanfattning : This study deals with the law of international watercourses that are shared by two or more States, the legal regimes of which have evolved significantly, especially in the past two centuries. The developments of and paradigm shifts in the legal regimes for the multiple uses and environmental protection are studied through an examination of different sources of international law since the early 19th century. LÄS MER