Sökning: "rotary diffusion"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden rotary diffusion.

  1. 1. Angular dynamics of non-spherical particles in linear flows related to production of biobased materials

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Tomas Rosén; KTH.; KTH.; KTH.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fluid mechanics; dispersed particle flows; inertia; non-linear dynamics; rotary diffusion; characterization techniques;

    Sammanfattning : Dispersed particle flows are encountered in many biological, geophysical but also in industrial situations, e.g. during processing of materials. In these flows, the particles usually are non-spherical and their angular dynamics play a crucial role for the final material properties. LÄS MER

  2. 2. Orientation of elongated, macro and nano-sized particles in macroscopic flows

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Karl Håkansson; KTH.; [2014]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Orientation; fibre; fibril; turbulent channel flow; particle streaks; flow focusing; cellulose nanofibrils; extensional flow; Smoluchowski; rotary diffusion;

    Sammanfattning : Non-spherical particles are present all around us, in biological, industrial and environmental processes. Making predictions of their impact on us and systems in our vicinity can make life better for everyone here on earth. LÄS MER

  3. 3. Degradation mechanisms in refractory lining materials of rotary kilns for iron ore pellet production

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Jesper Stjernberg; Luleå tekniska universitet.; [2012]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materialteknik; Engineering Materials;

    Sammanfattning : Iron is one of the most important resources in the lithosphere; 90% of all metal ores extracted are based on iron. Many steps are included in the extraction of iron from ore, with extraction processes varying among different producers. Iron ore pellets are a prepared burden material for ironmaking in the blast furnace or by direct reduction. LÄS MER

  4. 4. Optical manipulation and heating of gold nanoparticles near interfaces

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Daniel Andrén; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LSPR spectroscopy; particle-surface separation distance; thermal reshaping; TIRM; nanomotor; plasmonics; photothermal effects; Brownian dynamics; gold nanorod; optical tweezers;

    Sammanfattning : By focusing laser light to small volumes, its momentum can be used to trap and manipulate objects in the size range from cells down to single atoms. Devices using this effect are called optical tweezers, and have found use in measuring and applying minuscule forces and torques, contributed to deepening our knowledge of molecular motors, unraveling the mechanics of cells and DNA, and better understand statistical mechanics and hydrodynamic interactions at the nanoscale. LÄS MER

  5. 5. Viscous Behaviour of Fibre-filled Liquids

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Mina Djalili-Moghaddam; [2004]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; viscosity; geometry effects; short-range interactions; parallel plate; fibre suspension; normal force; cone and plate;

    Sammanfattning : Process simulation of discontinuous fibre composites is of importance in automotive industries. The performance of a fibre composite part depends to a great extent on the fibre orientation pattern. LÄS MER