Search for dissertations about: "Particle length"

Showing result 1 - 5 of 139 swedish dissertations containing the words Particle length.

  1. 1. Particle Measurements Using Fluctuations in the Regular Transmittance of Light Through a Particle Dispersion Concentration and Particles size - Theory, Measurement Principles and Applications for Pulp and Paper Production

    University dissertation from Stockholm : KTH

    Author : Staffan Rydefalk; Lars Mattsson; John Gregory; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Particle concentration; Particle size; Cylindrical particles; Large particles; Cellulose fibres; Wood pulp fibres; Suspensions; Particle length; Particle length distribution; Particle width; TECHNOLOGY Industrial engineering and economy Manufacturing engineering and work sciences Manufacturing engineering; TEKNIKVETENSKAP Industriell teknik och ekonomi Produktion och arbetsvetenskap Produktionsteknik;

    Abstract : The regular transmittance of light or similar radiation through a flowing suspension of particles fluctuates because of the random occurrence of particles in the beam.In the work presented here, a theory for this fluctuating behaviour with the emphasison dispersions of mm-length slender cylindrical particles having circular crosssections is given. READ MORE

  2. 2. Model predictions of turbulent gas-particle shear flows

    University dissertation from Stockholm : KTH

    Author : Tobias Strömgren; Gustav Amberg; Arne V. Johansson; Martin Sommerfeld; [2010]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; turbulent gas-particle flows; modelling; turbophoresis; two-way coupling; particle-particle collisions; numerical simulations; TECHNOLOGY Engineering mechanics Fluid mechanics; TEKNIKVETENSKAP Teknisk mekanik Strömningsmekanik;

    Abstract : A turbulent two-phase flow model using kinetic theory of granularflows for the particle phase is developed and implmented in afinite element code. The model can be used for engineeringapplications. However, in this thesis it is used to investigateturbulent gas-particle flows through numerical simulations. READ MORE

  3. 3. Particle Interferometry in e+e- Annihilation

    University dissertation from Lund University, Elementary Particle Physics Department, Box 118, S-22100, Lund, Sweden

    Author : Raluca Muresan; [2000]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; quantum field theory; DELPHI; Elementary particle physics; LEP; e e- annihilation; Interferometry; Correlation; Bose-Einstein; Elementarpartikelfysik; kvantfältteori; Fysicumarkivet A:2000:Muresan;

    Abstract : This thesis is the result of three years of work in Lund University, as a member of DELPHI group, at the Elementary Particle Physics Department. The work concerns the study of Bose-Einstein correlations in electron-positron collisions at LEP. READ MORE

  4. 4. Modeling of dielectrophoresis in micro and nano systems

    University dissertation from Stockholm : KTH

    Author : Yuan Lin; Gustav Amberg; Hywel Morgan; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Dielectrophoresis; micro particle; molecular dynamics; single-walled carbon nanotubes; hydrodynamics; particle-particle interaction; superimposed; multi-step; TECHNOLOGY Engineering mechanics Fluid mechanics; TEKNIKVETENSKAP Teknisk mekanik Strömningsmekanik;

    Abstract : This thesis presents models and simulations of dielectrophoretic separation of micro and nano particles. The fluid dynamics involved and the dielectric properties of water inside single-walled carbon nanotube are studied as well. READ MORE

  5. 5. Fine and ultrafine particle exposure: Health effects and biomarkers

    University dissertation from Lund University: Faculty of Medicine

    Author : Yiyi Xu; [2017]
    Keywords : particulate matter; Occupational Exposure : adverse effects; mitochondrial dna; telomere length;

    Abstract : Particle, especially fine and ultrafine particle exposure has been linked to lower airway infections, asthma, chronic obstructive pulmonary disease (COPD), ischemic heart disease, stroke and cancer. The underlying mechanisms are under active investigation, and are still not fully understood. READ MORE