Sökning: "Jonas Nordström"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Jonas Nordström.

  1. 1. On the existence of complex-valued harmonic morphisms

    Detta är en avhandling från Centre for Mathematical Sciences, Lund University

    Författare :Jonas Nordström; [2015]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Harmonic morphisms; foliations; minimal submanifolds; Lie groups;

    Sammanfattning : This thesis consists of 4 papers, their content is described below: Paper I. We present a new method for manufacturing complex-valued harmonic morphisms from a wide class of Riemannian Lie groups. This yields new solutions from an important family of homogeneous Hadamard manifolds. LÄS MER

  2. 2. Temporal and spatial variation in predation on roe deer fawns

    Detta är en avhandling från ; Dept. of Ecology, Swedish University of Agricultural Sciences

    Författare :Jonas Nordström; Sveriges lantbruksuniversitet.; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : This thesis deals with variation in mortality of roe deer fawns, over time and in space, caused by red fox and Eurasian lynx predation in a boreal landscape. The thesis considers historic and recent effects of vole population dynamics on red fox predation on roe deer fawns, using long term time series from Grimsö Wildlife Research Area. LÄS MER

  3. 3. Colloidal fumed silica and soluble silicates — Interactions and microstructure

    Detta är en avhandling från ; Dept. of Ecology, Swedish University of Agricultural Sciences

    Författare :Jonas Nordström; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Electrolytes; Infrared spectroscopy; Alkaline sodium silicate; Colloidal stability; Ionic liquids; Gelation; Raman spectroscopy; Photon correlation spectroscopy; Fumed silica; Water glass;

    Sammanfattning : Colloidal dispersions and gels are important material systems with applications in many industrial processes and consumer products. This thesis aims at increasing the understanding of colloidal interactions and the phase transition from a colloidal dispersion to an arrested structure in two systems based on silica. LÄS MER

  4. 4. Structure and Dynamics of Silica Dispersions and Gels

    Detta är en avhandling från ; Dept. of Ecology, Swedish University of Agricultural Sciences

    Författare :Jonas Nordström; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; aging; Photon correlation spectroscopy; sodium silicate; lithium electrolytes; water glass; fumed silica; sol-gel transition;

    Sammanfattning : This thesis deal with the sol-gel transition of two quite different systems, both based on silica. The overall aim is to understand what interactions lead to this sol-gel transition and how the structure and dynamics change as a result of this.The first project concern the gelation of water glass, also known as alkaline sodium silicate solutions. LÄS MER

  5. 5. Essays on Energy Demand and Household Energy Choice

    Detta är en avhandling från ; Dept. of Ecology, Swedish University of Agricultural Sciences

    Författare :Amin Karimu; Runar Brännlund; Jonas Nordström; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Choice Probability; derivatives; energy policy; gasoline demand; propensity score; tax simulation; unobserved trend; nationalekonomi; Economics;

    Sammanfattning : This thesis consists of four self-contained papers related to energydemand and household cooking energy.Paper [I] examine the impact of price, income and non-economicfactors on gasoline demand using a structural time series model. LÄS MER