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Sökning: WFRF:(Ulen Johannes)

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1.
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2.
  • Abugessaisa, Imad, et al. (författare)
  • Ontological Approach to Modeling Information Systems
  • 2004
  • Ingår i: Proceedings of the Fourth International Conference on Computer and information Technology (Cit'04), 14–16 September, Wuhan, China: IEEE Computer Society, Washington, DC. ; , s. 1122-1127
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • In recent years, the use of formal tools in information system modeling and development represents a potential area of research in computer science. In 1967, the term ontology appeared for the first time in computer science literature as S. H. Mealy introduced it as a basic foundation in data modeling. The main objective of this paper is to discuss the concept of ontology (from a philosophical perspective) as it was used to bridge the gap between philosophy and information systems science, and to investigate ontology types that can be found during ontological investigation and the methods used in the investigation process. The secondary objective of this paper is to study different design and engineering approaches of ontology as well as development environments that are used to create and edit ontologies.
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3.
  • Alvén, Fredrik, 1972- (författare)
  • Uses of the Moor in the Historical Culture of Spain
  • 2022
  • Ingår i: Cross-sections : Historical Perspectives from Malmö University. - Malmö : Malmö universitet. - 9789178772513 - 9789178772520 ; , s. 19-40
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)
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4.
  • Alvén, Fredrik, 1972- (författare)
  • Vad i hela världen säger du?
  • 2021
  • Ingår i: Känsliga frågor, nödvändiga samtal. - Lund : Studentlitteratur AB. - 9789144137346 ; , s. 179-196
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)
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  • Borrebaeck, Carl (författare)
  • Viewpoints in Clinical Proteomics - when will proteomics deliver clinically useful information?
  • 2012
  • Ingår i: Proteomics Clinical Applications. - : Wiley. - 1862-8354 .- 1862-8346. ; 6:7-8, s. 343-345
  • Tidskriftsartikel (refereegranskat)abstract
    • Proteomics has not delivered biomarkers of clinical value, despite massive efforts. The technologies that are emerging today have, however, the power to reach deep into proteomes and to identify patterns associated with different diseases. The study design is then crucial and sample quality, bioinformatic approaches, pre-validation, using independent patient cohort, need to attract increased attention before proteomics will contribute to the needs of personalized medicine.
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10.
  • Borrega, Marc, et al. (författare)
  • Birch wood pre-hydrolysis vs pulp post-hydrolysis for the production of xylan-based compounds and cellulose for viscose application
  • 2018
  • Ingår i: Carbohydrate Polymers. - : Elsevier BV. - 0144-8617 .- 1879-1344. ; 190, s. 212-221
  • Tidskriftsartikel (refereegranskat)abstract
    • Hydrothermal treatments of birch wood and kraft pulp were compared for their ability to extract the xylan and produce viscose-grade pulp. Water post-hydrolysis of kraft pulp produced a high-purity cellulosic pulp with lower viscosity but higher cellulose yield than traditional pre-hydrolysis kraft pulping of wood. Post-hydrolysis of pulp also increased the crystallite dimensions and degree of crystallinity in cellulose, and promoted a higher extent of fibril aggregation. The lower specific surface area in post-hydrolyzed pulps, derived from their larger fibril aggregates, decreased the accessibility of –OH groups. However, this lower accessibility did not seem to decrease the pulp reactivity to derivatizing chemicals. In the aqueous side-stream, the xylose yield was similar in both pre- and post-hydrolysates, although conducting post-hydrolysis of pulp in a flow-through system enabled the recovery of high purity and molar mass (∌10 kDa) xylan for high-value applications.
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