Search for dissertations about: "Paper Web"

Showing result 1 - 5 of 190 swedish dissertations containing the words Paper Web.

  1. 1. Paper meets web how the institution of news production works on paper and online

    University dissertation from Jönköping : Jönköping International Business School

    Author : Elena Raviola; Högskolan i Jönköping.; Högskolan i Jönköping.; [2010]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SOCIAL SCIENCES Other social sciences Media and communication studies; SAMHÄLLSVETENSKAP Övrig samhällsvetenskap Medie- och kommunikationsvetenskap; SOCIAL SCIENCES Business and economics Business studies; SAMHÄLLSVETENSKAP Ekonomi Företagsekonomi;

    Abstract : The dissertation investigates the institution of news production at work, on paper and online, through an ethnographic study at the largest Italian financial newspaper Il Sole-24 Ore. Building on institutional theory and taking inspiration from Bordieu’s theoretical apparatus describing how cultural capital works, the dissertation presents a framework for the way institutions work, a framework that echoes Mary Douglas’ How Institutions Think (1987). READ MORE

  2. 2. Baggy paper webs Effect of uneven moisture and grammage profiles in different process steps

    University dissertation from Karlstad : Karlstads universitet

    Author : Cecilia Land; Karlstads universitet.; [2010]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bagginess; drying; calendering; grammage; moisture content; paper; profile; reels; softwood kraft pulp; storage; strain; tension; web; Chemical Engineering; Kemiteknik;

    Abstract : One of the problems encountered in paper converting is caused by the occurrence of "baggy webs", which essentially is when the tension profile of the paper web is uneven. In an area with low tension the paper is longer, which results in bagginess. READ MORE

  3. 3. Laboratory method for the study of moisture-induced waviness in paper

    University dissertation from Karlstads universitet : Karlstad

    Author : Cecilia Land; Karlstads universitet.; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Cellulose and paper engineering; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Cellulosa- och pappersteknik; Chemical Engineering; Kemiteknik; method; moisture; paper; paper web; wavelength; waviness;

    Abstract : Paper that is subjected to moisture undergoes dimensional changes. It expands during moistening and shrinks during drying. When the paper is under tension between rollers, the effects are complex since shrinkage and expansion are restricted in the width direction. Waves can then appear on the paper web. READ MORE

  4. 4. Dryer Section Control in Paper Machines During Web Breaks

    University dissertation from Department of Automatic Control, Lund Institute of Technology (LTH)

    Author : Jenny Ekvall; Mittuniversitetet.; Mittuniversitetet.; Lund University.; Lunds universitet.; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Information technology Automatic control; TEKNIKVETENSKAP Informationsteknik Reglerteknik; Dryer Section; Web breaks; Paper machine; steam pressure control; Physical modeling; Dryer section; paper machine; physical modeling; web breaks;

    Abstract : Web breaks in the dryer section of a paper machine cause loss of production and quality problems. After a web break, the steam pressure in the cylinders must be reduced to avoid overheating. READ MORE

  5. 5. On Heat and Paper From Hot Pressing to Impulse Technology

    University dissertation from Stockholm : Fiber- och polymerteknologi

    Author : Marco Francesco Carlo Lucisano; KTH.; [2002]
    Keywords : Paper; Impulse Drying; Heat Transfer; Phase Change; Heat-Pipe Effect; Delamination; Flashing;

    Abstract : Impulse technology is a process in which water is removedfrom a wet paper web by the combined action of mechanicalpressure and intense heat. This results in increased dewateringrates, increased smoothness on the roll side of the sheet, andincreased density. READ MORE