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Showing result 1 - 5 of 36 swedish dissertations matching the above criteria.

  2. 1. Particle Packing for Chromatography - Lagrangian Simulations

    Author : Rasmus Hemph; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chromatography columns; Particle Packing; DEM;

    Abstract : .... READ MORE

  4. 2. The influence of particle shape of coating pigments on their packing ability and on the flow properties of coating colours

    Author : Sven Lohmander; KTH; []
    Keywords : aspect ratio; capillary viscometry; coating colour; filtration. Particle packing;

    Abstract : The influence of particle shape of coating pigments on theirpacking ability and on the flow properties of coating colourshas been investigated. The particle shapes considered werespherical, flaky and acicular (needle-shaped). READ MORE

  5. 3. Aggregates in Concrete Mix Design

    Author : Yahya Ghasemi; Mats Emborg; Andrzej Cwirzen; Martin Nilsson; Gram Hans-Erik; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mix design; water layer theory; particle packing; aggregates; specific surface area; Byggproduktion; Construction Engineering and Management;

    Abstract : The importance of studying the behaviour and properties of concrete can be highlighted by considering the fact that concrete is the most used man-made material in the world. The very first step in making concrete is its mix design and deciding the type and amount of constitutes used in the production of concrete which should fulfil the requirements of the final product. READ MORE

  6. 4. Flowability and proportioning of cementitious mixtures

    Author : Yahya Ghasemi; Mats Emborg; Andrzej Cwirzen; Martin Nilsson; Stefan Jacobsen; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Particle packing; excess layer theory; mix design; Structural Engineering; Konstruktionsteknik;

    Abstract : Understanding the role of constituents of cementitious mixtures as the most globally used human-made material and their effect on the flowability of the blends is of great importance. A comprehensive understanding of the ingredients of mixtures allows for optimized proportioning of constituents and can lead to a reduction in cement and water demand of the blends. READ MORE

  7. 5. A numerical study on orientational arrest and size segregation of dense particle flows using discrete element modeling

    Author : Zakiyeh Yousefian; Beräkningskemi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; particle flows; dense suspensions; granular materials;

    Abstract : The thesis focuses on studying dense particle flows, which are either dry or submerged in a Newtonian fluid through two dimensional numerical simulations using the discrete element method (DEM). The First paper deals with dense suspensions in viscous regime under oscillatory planar shear. READ MORE