Sökning: "process"

Visar resultat 6 - 10 av 18644 avhandlingar innehållade ordet process.

  1. 6. Process modelling based on data from an evaporation and a CTMP process : Analysis of energy efficiency and process variability

    Författare :Daniel Ekbåge; Lars Nilsson; Helena Håkansson; Per Engstrand; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CTMP; process modelling; evaporation; energy efficiency; Miljö- och energisystem; Environmental and Energy Systems;

    Sammanfattning : The manufacture of pulp and paper is an energy intensive process configured of several unit processes that shape a network of flows of wood chips, chemical pulp, mechanical pulp, paperboard, steam and other important components. Improved energy efficiency supports sustainability of the process and the products. LÄS MER

  3. 7. Biomass conversion through syngas-based biorefineries : thermochemical process integration opportunities

    Författare :Katarina Åberg; Anders Nordin; Linda Pommer; Erik Dahlquist; Umeå universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biomass; biorefinery; thermochemical conversion; torrefaction; slow pyrolysis; gasification; process integration; carbon negativity;

    Sammanfattning : The replacement of fossil resources through renewable alternatives is one way to mitigate global climate change. Biomass is the only renewable source of carbon available for replacing oil as a refining feedstock. Therefore, it needs to be utilized not just as a fuel but for both biochemical and thermochemical conversion through biorefining. LÄS MER

  4. 8. Adoption av elektronisk handel : Innehåll, kontext, process och samspelet mellan dessa

    Författare :Monika Magnusson; Anders G. Nilsson; Péter Révay; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Adoption ”adoption” ; e-commerce “elektronisk handel” ; SME ”små och medelstora företag” ; conceptual framework ”konceptuellt ramverk” ; content ”innehåll” ; context ”kontext” ; process ”process” .; Informatics and systems science; Informatik och systemvetenskap; Information Systems; Informatik;

    Sammanfattning : E-commerce is far more common in large firms than in small and medium-sized enterprises (SMEs). As a result SMEs risk competitive disadvantages. A growing body of research has attended to this problem but few studies examine the adoption of e-commerce from a broader contextual perspective. LÄS MER

  5. 9. ATMP Process : Improved Energy Efficiency in TMP Refining Utilizing Selective Wood Disintegration and Targeted Application of Chemicals

    Författare :Dmitri Gorski; Per Engstrand; Jan Hill; Lars Johansson; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ATMP; TMP; Hydrogen Peroxide; Magnesium Hydroxide; Mechanical Pre-Treatment; Fibre Characterisation; Refiner Bleaching; SC Paper; Newsprint; Cellulose and paper engineering; Cellulosa- och pappersteknik;

    Sammanfattning : This thesis is focused on the novel wood chip refining process called AdvancedThermomechanical Pulp (ATMP) refining. ATMP consists of mechanical pretreatmentof chips in Impressafiner and Fiberizer prior to first stage refining atincreased intensity. LÄS MER

  7. 10. Ortnamnsanpassning som process : En undersökning av vendiska ortnamn och ortnamnsvarianter i Knýtlinga saga

    Författare :Alexandra Petrulevich; Henrik Williams; Staffan Nyström; Michael Lerche Nielsen; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; place-name replication; place-name adaptation; Old Norse; Knýtlinga saga; Wendish place-names; contact onomastics; philology; ortnamnsreplikation; ortnamnsanpassning; fornvästnordiska; Knýtlinga saga; vendiska ortnamn; kontaktonomastik; ortnamnsvariant; filologi; Pommern; vender; språkkontakt; polabiska; pomoranska; Nordiska språk; Scandinavian Languages;

    Sammanfattning : The aim of the thesis is to theoretically and empirically describe and explain the phenomenon of place-name adaptation which does not necessarily end with the borrowing or replication of place-names but can continue further. 48 Wendish place-names in Knýtlinga saga, including their attestations and variants in a selection of the saga’s text carriers and corresponding text witnesses, constitute the primary material for the investigation. LÄS MER