Sökning: "points of gravity"

Visar resultat 6 - 10 av 24 avhandlingar innehållade orden points of gravity.

  1. 6. Torn, Spun and Chopped : Various Limits of String Theory

    Författare :Fredric Kristiansson; Ulf Danielsson; Per Sundell; Bo Sundborg; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Theoretical physics; Theoretical physics; String theory; D-branes; Non-commutative open string theory; AdS CFT; Higher spin gauge theory; BMN; String bits; Fermion doubling; Teoretisk fysik; Physics; Fysik;

    Sammanfattning : For the first time in the history of physics we stand in front of a theory that might actually serve as a unification of it all - string theory. It provides a self-consistent framework for gravity and quantum mechanics, which naturally incorporates matter and gauge interactions of the type seen in the standard model. LÄS MER

  3. 7. Numerical Investigation of Rotating and Stratified Turbulence

    Författare :Enrico Deusebio; Erik Lindborg; Johan Nilsson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Geostrophic turbulence; stable stratification; rotation; wall-bounded turbulence; gravity waves; atmospherical dynamics; direct numertical simulations; SRA - E-Science SeRC ; SRA - E-vetenskap SeRC ;

    Sammanfattning : Atmospheric and oceanic flows are strongly affected by rotation and stratification. Rotation is exerted through Coriolis forces which mainly act in horizontal planes whereas stratification largely affects the motion along the vertical direction through buoyancy forces, the latters related to the vertical variation of the fluid density. LÄS MER

  4. 8. A simple model of the mechanics of trombone playing

    Författare :Gitte Ekdahl; KTH; []
    Nyckelord :;

    Sammanfattning : To study human motion in general, the motion when playingthe trombone has been examined. This makes it possible to workwith a simple mechanical model and thus get results that areeasier to interpret. Calculations from the model have beencompared to measurements from experiments. LÄS MER

  5. 9. Morphology of Tigris River inside Baghdad City

    Författare :Ammar Adel Ali; Govand H. M. Sherwani; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Soil Mechanics; Geoteknik;

    Sammanfattning : Tigris and Euphrates rivers represent the artery of life in Iraq. Tigris River rises from Turkey and flows toward the southeast to enter Iraq. It drains a catchment area of 473 100 km² of which about 58% lies in Iraq. In this study the reach, about 50 km long, of the river inside Baghdad was been studied. LÄS MER

  7. 10. Essays on African Growth, Productivity, and Trade

    Författare :Ludvig Söderling; Nationalekonomiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; ekonomiska system; ekonomisk teori; ekonometri; Nationalekonomi; Africa; economic policy; economic systems; economic theory; econometrics; Economics; trade; gravity model; general equilibrium model; oil; diversification; Dutch disease; productivity; ekonomisk politik; International commerce; Internationell ekonomi; Economics of development; Utvecklingsekonomi; growth;

    Sammanfattning : The thesis comprises an introductory chapter and four research papers. The introductory chapter provides a brief overview of recent economic growth performance in Africa, places the individual papers into a coherent context, summarizes the main findings, and discusses their relevance for economic policy. LÄS MER