Sökning: "Paper"

Visar resultat 21 - 25 av 13315 avhandlingar innehållade ordet Paper.

  1. 21. Influence of paper properties and polymer coatings on barrier properties of greaseproof paper

    Författare :Henrik Kjellgren; Gunnar Engström; Lars Järnström; Lennart Stolpe; Torbjörn Helle; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Greaseproof paper; Barrier properties; Gas barrier; Paper properties; Coatings; Chemical engineering; Kemiteknik; Chemical Engineering; Kemiteknik;

    Sammanfattning : Greaseproof paper has a dense structure and therefore provides a natural barrier against materials like fat and oils. The barrier is obtained by extensive refining of the pulp. LÄS MER

  3. 22. Strategies for Reduced Energy Use and Cost in Pulp and Paper Mills by Energy Integration of the Paper Drying Process

    Författare :Kristian Lindell; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Paper; Pappers- och massateknik; pulp and paper technology; Wood; Energiforskning; Chemical technology and engineering; Kemiteknik och kemisk teknologi; Combined dryer; Energy research; Black liquor gasification; Heat recovery; Secondary energy; Co-generation; Costs; Energy; Drying;

    Sammanfattning : The cost of energy for drying paper is substantial for the pulp and paper industry, and studies of various strategies for energy cost reductions such as increased energy efficiency, increased heat recovery from the exhaust drying air and reduced cost of the process heat are presented in this thesis. The energy use and cost studies were performed using a block-model based simulation tool developed for this specific purpose. LÄS MER

  4. 23. Whiteness and Fluorescence in Layered Paper and Board : Perception and Optical Modelling

    Författare :Ludovic Gustafsson Coppel; Per Edström; Caisa Johansson; Markku Hauta-Kasari; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Whiteness; Perception; Colour Appearance Modelling; Paper Optics; Light Scattering; Fluorescence; Lateral Light Scattering; White-Top Mottle; Kubelka-Munk; Radiative Transfer;

    Sammanfattning : This thesis is about modelling and predicting the perceived whiteness of plain paper from the paper composition, including fluorescent whitening agents. This involves psychophysical modelling of perceived whiteness from measurable light reflectance properties, and physical modelling of light scattering and fluorescence from the paper composition. LÄS MER

  5. 24. Optical Response From Paper : Angle-dependent Light Scattering Measurements, Modelling, and Analysis

    Författare :Hjalmar Granberg; KTH; []
    Nyckelord :Light Scattering; Reflectance; BRDF; BSDF; Kubelka-Munk; Radiative Transfer; Optical Properties; Elrepho; Brightness; Opacity; Coated Paper; Fines;

    Sammanfattning : .... LÄS MER

  7. 25. Reverse Logistics Systems : an Interorganisational Perspective, Focusing on Paper Recycling

    Författare :Maria Huge-Brodin; Sten Wandel; Helén Anderson; Susanne Hertz; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reverse Logistics; Recycling; Paper; Interorganisational; Case studies;

    Sammanfattning : The purpose of the study is to describe and analyse reverse logistics systems. The study is a qualitative case study, and the main case comprise three actors: a supplier of recycled paper; their customer, the paper mill, and the transport provider linking the customer and supplier. Reference cases are recycling electronics and recycling cars. LÄS MER