Sökning: "Ulf Edlund"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Ulf Edlund.

  1. 1. Studier av 2-cykloaminoindener speciellt med hänsyn till prototropa omlagringar

    Författare :Ulf Edlund; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis is a short review of six papers (Papers 1-6,page 5) concerning studies of enamines from 2-indanones. The unusually stable 2-(N-pyrrolidyl)indene has been studied (Paper 2 ). As a base catalyst this enamine rearranges 1-methylindene to 3-methylindene with a lower rate constant compared with triethylamine. LÄS MER

  3. 2. Bebyggelsenamnen i Bureå, Burträsks och Lövångers socknar i Skellefteå kommun jämte studier av huvudleder och nybyggesnamn

    Författare :Ulf Lundström; Lars-Erik Edlund; Inge Særheim; Umeå universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Onomastics; place-names; settlement names; Nordic languages; Sami; Finnish; languages in contact; Skellefteå; Västerbotten; recent settlements; Scandinavian Languages; nordiska språk;

    Sammanfattning : This thesis deals with place-names in the southern part of the municipality of Skellefteå in the province of Västerbotten, more precisely the parishes of Bureå, Burträsk and Lövånger. It consists of three different sections, first a survey of the settlement names in each parish, then a section on the second elements in these place-names, and finally a study of names of more recent settlements. LÄS MER

  4. 3. Prediction of wood species and pulp brightness from roundwood measurements

    Författare :David Nilsson; Ulf Edlund; Michael Sjöström; Olav Kvalheim; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Design of Experiments; ISO brightness; Multivariate Image Analysis; Multivariate Modelling; NIR spectroscopy; Norway spruce; PCA; PLS; Roundwood; Scots pine; Organic chemistry; Organisk kemi;

    Sammanfattning : This thesis presents a number of studies, where a multivariate approach was taken to construct models that predict wood species and thermo mechanical pulp brightness from roundwood of Norway spruce and Scots pine. The first and second studies produced multivariate prediction models for wood species from the bark of spruce and pine. LÄS MER

  5. 4. Diabetes in 3D : β-cell mass assessments in disease models & evaluation of SPECT based imaging

    Författare :Saba Parween; Ulf Ahlgren; Helena Edlund; Eckhard Lammert; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Optical projection tomography; Diabetes; β-cell mass; disease etiology; 3D imaging; radiotracers; Single photon emission computed tomography; molekylär medicin genetik och patologi ; molecular medicine  genetics and pathology ;

    Sammanfattning : Diabetes is a rapidly growing disease with 415 million affected adults worldwide. The pancreatic endocrine cells, most importantly the insulin producing β-cells, play an important role in regulating blood glucose homeostasis. LÄS MER

  7. 5. Innate Confinement Effects in PCL Oligomers as a  Route to Confined Space Crystallisation

    Författare :Nima Sanandaji; Ulf W. Gedde; Mikael Hedenqvist; Lars Kloo; Ulrica Edlund; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Crystallisation; Polycaprolactone; PCL; Confined state crystallisation; Metastable Phases; Chemistry; Kemi;

    Sammanfattning : In this work, an in-depth analysis of crystalline characteristics has been performed for a unique set of strictly monodisperse poly-ε-caprolactone (PCL) oligomers. The molecules have different sets of end groups with various degrees of bulkiness and hydrogen bonding potential, affecting their aptitude to pack in ordered crystal structures. LÄS MER