Sökning: "roland karlsson"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden roland karlsson.

  1. 1. 18-cm VLA observations of OH towards the Galactic Centre

    Författare :Roland Karlsson; Aage Sandqvist; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Galactic centre; Astronomy; astronomi; Astronomy; astronomi;

    Sammanfattning : .... LÄS MER

  3. 2. Studies of molecular clouds at the Galactic centre

    Författare :Roland Karlsson; Kambiz Fathi; Aage Sandqvist; Andreas Eckart; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Galactic centre; Astronomy; astronomi;

    Sammanfattning : Interstellar molecular clouds play an essential role in the Universe. Such clouds are invoked for the production and destruction of stars, galaxies and gas and also for energy transport in galaxies. LÄS MER

  4. 3. Turbulent Flow in Constricted Blood Vessels : Quantification of Wall Shear Stress Using Large Eddy Simulation

    Författare :Roland Gårdhagen; Matts Karlsson; Toste Länne; Leif Rune Hellevik; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : The genesis of atherosclerosis has previously been shown to be affected by the frictional load from the blood on the vessel wall, called the wall shear stress (WSS). Assessment of WSS can therefore provide important information for diagnoses, intervention planning, and follow‐up. LÄS MER

  5. 4. Island biogeography of young land uplift islands - viewed through the lens of bryophytes in a northern Swedish archipelago

    Författare :Andreas Karlsson Tiselius; Mats Dynesius; Roland Jansson; Göran Englund; Joakim Hjältén; Tord Snäll; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; functional data analysis; metacommunity; isolation; mosses; liverworts; sporophyte production; dispersal-establishment trade-off; ekologisk botanik; Ecological Botany; Conservation Biology; naturvårdsbiologi; Statistics; statistik;

    Sammanfattning : Increasing habitat fragmentation and rapid global warming is changing the conditions for species populations and ecological communities around the world. This presents challenges for the maintenance of biodiversity and a dominant paradigm for conservation in fragmented habitats is given by island biogeography and metapopulation (or metacommunity) ecology. LÄS MER

  7. 5. Important Factors for Accurate Scale-Resolving Simulations of Automotive Aerodynamics

    Författare :Petter Ekman; Matts Karlsson; Torbjörn Virdung; Roland Gårdhagen; Adrian Gaylard; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Road transports are responsible for almost 18 % of the greenhouse gas emission in Europe and are today the leading cause of air pollution in cities. Aerodynamic resistance has a significant effect on fuel consumption and hence the emission of vehicles. LÄS MER