Search for dissertations about: "pure"

Showing result 1 - 5 of 1371 swedish dissertations containing the word pure.

  1. 1. Towards a pure kraft lignin

    Author : Rufus Ziesig; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LignoBoost; black liquor; lignin; impurities; purification; carbohydrate; inorganics; precipitation;

    Abstract : The most widely used production method for paper pulp in the world is kraft pulping. In chemical pulping the polymer, lignin, which binds the wood fibres together, is partly depolymerized. This allows the wood fibres to be separated from each other. READ MORE

  2. 2. Pure Functional Parsing - an advanced tutorial

    Author : Peter Ljunglöf; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; context-free grammars; parsing algorithms; parser combinators; functional programming;

    Abstract : Parsing is the problem of deciding whether a sequence of tokens is recognized by a given grammar, and in that case returning the grammatical structure of the sequence. This thesis investigates di erent aspects of the parsing problem from the viewpoint of a functional programmer. READ MORE

  3. 3. In Search of the Pure Photograph : A Historiographic Study of the Farm Security Administration, Walker Evans, and the Survey Histories of Photography

    Author : Cecilia Strandroth; Marta Edling; Jan von Bonsdorff; Karin Becker; Uppsala universitet; []
    Keywords : HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; Art history; photography; historiography; documentary; history of photography; Farm Security Administration; Walker Evans; propaganda; modernism; media specificity; photographic archives; Konstvetenskap; History Of Art; konstvetenskap; Art;

    Abstract : The photographic archive of the American New Deal agency Farm Security Administration (created 1935-1943) occupies an important place in the history of photography as an exemplar of documentary photography and as symbol of the Great Depression. This dissertation is a historiographic study of this narrative of FSA photography, which investigates the archive's monumental position in the historical narration and demonstrates other possible readings. READ MORE

  4. 4. Electronic transitions and correlation effects : From pure elements to complex materials

    Author : Johan Jönsson; Igor A. Abrikosov; Marcus Ekholm; Sergei Dudarev; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Electronic transition; solid state physics; condensed matter physics; correlation effects;

    Abstract : Macroscopic properties of real materials, such as conductivity, magneticproperties, crystal structure parameters, etc. are closely related or evendetermined by the configuration of their electrons, characterized by electronicstructure. By changing the conditions, e.g, pressure, temperature, magnetic/electric field, chemical doping, etc. READ MORE

  5. 5. Pure shear fracture of brittle rock : a theoretical and laboratory study

    Author : Qiuhua Rao; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och Berganläggningsteknik;

    Abstract : This doctoral thesis deals with determination of Mode II fracture toughness, KIIc, for rock. Three types of specimens, antisymmetric four-point bending, direct shearing and compression-shear specimens, are experimentally and numerically investigated. READ MORE