Sökning: "phase balance"

Visar resultat 31 - 35 av 237 avhandlingar innehållade orden phase balance.

  1. 31. Energy balance during active carbon uptake and at excess irradiance in three marine macrophytes

    Författare :Herman Carr; Mats Björk; Lennart Axelsson; Félix López Figueroa; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plant physiology; Växtfysiologi;

    Sammanfattning : The marine environment is an important habitat where many processes occur that affect life conditions on earth. Macrophytes and planktonic oxygen evolvers are an essential component for almost all marine life forms and have developed in an environment that differs largely from the terrestrial habitats. LÄS MER

  3. 32. Modeling aerosol-cloud interactions in the Arctic

    Författare :Hannah Frostenberg; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Mixed-phase clouds; ice nucleating particles; heterogeneous freezing; Arctic; LES-modeling; parameterization;

    Sammanfattning : Clouds have a large impact on Earth’s energy balance, especially in the Arctic. Through their warming or cooling effect on the surface, clouds can play a critical role in the onset of melting and freezing of Arctic sea ice, which itself has a large effect on energy and moisture fluxes between the ocean and the atmosphere. LÄS MER

  4. 33. Numerical methods for the Navier–Stokes equations applied to turbulent flow and to multi-phase flow

    Författare :Martin Kronbichler; Gunilla Kreiss; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Beräkningsvetenskap med inriktning mot numerisk analys; Scientific Computing with specialization in Numerical Analysis;

    Sammanfattning : This thesis discusses the numerical approximation of flow problems, in particular the large eddy simulation of turbulent flow and the simulation of laminar immiscible two-phase flow. The computations for both applications are performed with a coupled solution approach of the Navier-Stokes equations discretized with the finite element method. LÄS MER

  5. 34. Models of the Distribution of Persistent Organic Pollutants in the Marine Environment

    Författare :N. Johan Persson; Dag Broman; Kevin Jones; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; persistent organic pollutants; mass balance models; fugacity models; eutrophication; PCDD F; PCB; PCN; soot carbon.; Environmental chemistry; Miljökemi;

    Sammanfattning : Persistent organic pollutants (POPs) is a group of chemicals that are toxic, undergo long-range transport and accumulate in biota. Due to their persistency the distribution and recirculation in the environment often continues for a long period of time. LÄS MER

  7. 35. Numerical and Experimental Studies on the Effects of Flow on Drop Formation in Cross-flow Membrane Emulsification

    Författare :Anna Timgren; Livsmedelsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Particle image velocimetry; Drops; Force balance model; Membrane emulsification; Volume of fluids; Computational fluid dynamics;

    Sammanfattning : Membrane emulsification is a gentle process that produces emulsions with a narrow drop size distribution, which increases the stability of the emulsion. The dispersed phase is forced through the pores in a membrane and drops are formed at the other side of the membrane where a continuous phase, flowing along the membrane surface, sweeps away the forming drops. LÄS MER