Search for dissertations about: "A Niemi"

Showing result 1 - 5 of 37 swedish dissertations containing the words A Niemi.

  1. 1. Towards a new sensing strategy for measuring paper pulp properties : a combination of ultrasonic and optical measurement techniques

    Author : Jan Niemi; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industrial Electronics; Industriell elektronik;

    Abstract : In the manufacturing process of paper the mass fraction and material properties of the fibres in the pulp suspension are important for the strength and quality of the finished product. The properties of the fibres in the pulp suspension that enters the paper machine is not well understood and therefore an adequate prediction of the strength and quality of the finished paper is not possible. READ MORE

  2. 2. Online characterization of wood pulp : foundations for a photoacoustic sensing technique

    Author : Jan Niemi; Mike Somekh; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industriell elektronik; Industrial Electronics;

    Abstract : Today, there is an increasing demand in the paper industry for better utilisation of the raw material and improved energy efficiency. Also, the increasing use of recycled paper in the manufacturing process leads to a situation where the knowledge of pulp properties needs to be improved and controlled. READ MORE

  3. 3. Biochemical and spectral characterization of micro- and macroalgae

    Author : Calle Niemi; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []

    Abstract : Algae contain many compounds which are of interest to the pharmaceutical, agricultural and food industries, among others. Despite the potential for many applications, a quick, accurate and inexpensive method for characterising algae is lacking. READ MORE

  4. 4. Bending, Twisting and Turning : Protein Modeling and Visualization from a Gauge-Invariance Viewpoint

    Author : Martin Lundgren; Antti Niemi; Jørgen Ellegaard Andersen; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; protein folding; discrete frenet frame; solitons; protein visualization; Physics and Astronomy specializing in Theoretical Physics; Fysik och astronomi med inriktning mot teoretisk fysik;

    Abstract : Proteins in nature fold to one dominant native structure. Despite being a heavily studied field, predicting the native structure from the amino acid sequence and modeling the folding process can still be considered unsolved problems. In this thesis I present a new approach to this problem with methods borrowed from theoretical physics. READ MORE

  5. 5. Towards improving perinatal maternal mental health in Vietnam

    Author : Maria Niemi; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Major depression is increasing world-wide, and is the third leading cause of the global disease burden. In Vietnam, perinatal depression is underdiagnosed and under-treated, leading to severe consequences for the pregnant mother, her child and surroundings. READ MORE