Sökning: "WEBS"

Visar resultat 1 - 5 av 167 avhandlingar innehållade ordet WEBS.

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

    Författare :Cecilia Land; Lennart Stolpe; Kaarlo Niskanen; Karlstads universitet; []
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER

  3. 2. Webs of Musical Significance : A study of student-teachers' musical socialisation in Ireland and Sweden

    Författare :Maria Westvall; Patricia Flynn; []
    Nyckelord :HUMANIORA; HUMANITIES; music education; musical socialisation; stores of experiences; student-teachers; social representations; web of significance; Ireland - Sweden; Musicology esp. Musical Education; Musikvetenskap med musikpedagogisk inriktning;

    Sammanfattning : .... LÄS MER

  4. 3. Disturbances in food webs : Importance of species interactions from an ecological and evolutionary perspective

    Författare :Anna Åkesson; Anna Eklöf; György Barabas; Vasilis Dakos; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Biodiversity loss is occurring globally at an unprecedented pace. This is not only followed by ethical concerns; it also affects all levels of an ecosystem, with wide-spread implications for ecosystem functioning, services and human well-being. LÄS MER

  5. 4. Biodiversity and Species Extinctions in Model Food Webs

    Författare :Charlotte Borrvall; Bo Ebenman; Owen Petchey; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biodiversity; food webs; redundancy; relaxation time; stability; stochasticity; species deletion; species extinction; Biology; Biologi;

    Sammanfattning : Many of the earth’s ecosystems are experiencing large species losses due to human impacts such as habitat destruction and fragmentation, climate change, species invasions, pollution, and overfishing. Due to the complex interactions between species in food webs the extinction of one species could lead to a cascade of further extinctions and hence cause dramatic changes in species composition and ecosystem processes. LÄS MER

  7. 5. Mechanics of paper webs in printing press applications

    Författare :Artem Kulachenko; Sören Östlund; Thomas Abrahamsson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Travelling webs; skew tension profiles; mixed dynamic formulation; fluting; Other engineering mechanics; Övrig teknisk mekanik;

    Sammanfattning : The mechanics of paper is a difficult subject because paper is a unique material. It is very thin, flexible at bending, unstable in compression and stiff at tension. Dealing with paper we have to account for orthotropy and heterogeneities created during the manufacturing process. LÄS MER