Sökning: "Maria Ralph"

Hittade 3 avhandlingar innehållade orden Maria Ralph.

  1. 1. Protected Lignin Biorefining: Fundamental Insights on Lignin Reactivity

    Författare :Maria Karlsson; Martin Lawoko; Åsa Emmer; Olena Sevastyanova; John Ralph; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Sustainability; lignin; biorefinery; cyclic organosolv extraction; preserved structure; NMR; MALDI-TOF MS; Hållbarhet; lignin; bioraffinaderi; cyklisk organosolv extraktion; bevarad struktur; NMR; MALDI-TOF MS; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : The potential to utilize lignin, which constitutes as much as 15-30% of the biomass, needs further evaluation. In the transition towards a bioeconomy, lignin has the potential to replace fossil-based phenols. Attempts to valorize the available technical lignins are ongoing; however, that lignin suffers from molecular heterogeneity. LÄS MER

  3. 2. Connected Practice: The Dynamics of Social Interaction in Shared Virtual Environment

    Författare :Maria Spante; Ralph Schroeder; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; time; connected practice.; Shared virtual environments; virtual reality technology; dynamics; social interaction; practice; Informatik;

    Sammanfattning : This thesis investigates the phenomenon of social interaction in shared virtual environments (SVEs), supported by virtual reality (VR) systems over time. SVEs are computer generated 3D graphical spaces where geographically distributed people can meet and interact with each other in a graphical space. LÄS MER

  4. 3. Fredrika Bremer and the Writing of America

    Författare :Laurel Ann Lofsvold; Litteraturvetenskap; []
    Nyckelord :HUMANIORA; HUMANITIES; General and comparative literature; women; slavery; homes; America; Catharine M. Sedgwick; Anne C. Lynch; James Russell Lowell; Margaret Fuller; Ralph Waldo Emerson; A. J. Downing; Lydia Maria Child; Frederick Douglass; Harriet Beecher Stowe; Fredrika Bremer; literature criticism; literary theory; Allmän och jämförande litteratur; litteraturkritik; litteraturteori;

    Sammanfattning : Hemmen i den nya verlden(1853-4) is novelist Fredrika Bremer's 3-volume travel diary in letter form, a literary account of her two years' travel in the United States and Cuba. Bremer wove, into the America she "wrote," a number of American authors and their works. Novelist Catharine Sedgwick and poet and socialite Anne C. LÄS MER