Sökning: "Fredrik Hellman"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Fredrik Hellman.

  1. 1. De verbi [ekho] cum participio alius cujusdam verbi constructione. Disquisitio, cujus partem priorem ... Vilhelmus Fred. Palmblad ... et Adolphus Fred. Hellman Smolandus. In Audit. Gustav. die XXIX Martii MDCCCXXXIV. H. A. M. S., P. 1

    Författare :Vilhelm Fredrik Palmblad; Fred. Adolphus Hellman; Vilhelm Fredrik Palmblad; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES;

    Sammanfattning : .... LÄS MER

  3. 2. Multiscale and multilevel methods for porous media flow problems

    Författare :Fredrik Hellman; Axel Målqvist; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Beräkningsvetenskap med inriktning mot numerisk analys; Scientific Computing with specialization in Numerical Analysis;

    Sammanfattning : We consider two problems encountered in simulation of fluid flow through porous media. In macroscopic models based on Darcy's law, the permeability field appears as data.The first problem is that the permeability field generally is not entirely known. LÄS MER

  4. 3. Numerical Methods for Darcy Flow Problems with Rough and Uncertain Data

    Författare :Fredrik Hellman; Axel Målqvist; Auli Niemi; Fritjof Fagerlund; Robert Scheichl; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; numerical homogenization; multiscale methods; rough coefficients; high contrast coefficients; mixed finite elements; cdf estimation; multilevel Monte Carlo methods; Darcy flow problems; Beräkningsvetenskap med inriktning mot numerisk analys; Scientific Computing with specialization in Numerical Analysis;

    Sammanfattning : We address two computational challenges for numerical simulations of Darcy flow problems: rough and uncertain data. The rapidly varying and possibly high contrast permeability coefficient for the pressure equation in Darcy flow problems generally leads to irregular solutions, which in turn make standard solution techniques perform poorly. LÄS MER

  5. 4. Precambrian and Caledonian history of Svalbard’s West Ny Friesland Terrane

    Författare :Fredrik Hellman; Berggrundsgeologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Geologi; physical geography; Geology; Detrital; Zircon; Svalbard; Caledonides; Spitsbergen; fysisk geografi; Petrology; mineralogy; geochemistry; Petrologi; mineralogi; geokemi;

    Sammanfattning : This thesis deals mainly with age-investigations of metasedimentary and magmatic rocks of Ny Friesland, located in the northeastern Svalbard. However, the provenance of quartz-porphyry clasts in a Devonian conglomerate have also been investigated in northwestern Svalbard. LÄS MER

  7. 5. Läran om Feber. Akademisk Afhandling med ... Medicinska Facultetens i Upsala tillstånd, under inseende af ... Israël Hwasser ... för Medicinska gradens erhållande utgifven af Adolph Fredrik Hellman af Smålands Nation på Medicinska Auditorium d. 5 Dec. 1840. p. v. t. e. m. Första afdelningen 7 delen

    Författare :Israel Hwasser; Adolph Fredrik Hellman; Israel Hwasser; Uppsala universitet; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER