Search for dissertations about: "bertil sundqvist"

Found 5 swedish dissertations containing the words bertil sundqvist.

  2. 1. Thermal conductivity of some metals under pressure

    Author : Bertil Sundqvist; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Although measurements of a wide variety of physical properties have been carried out under pressure during the last decades, data for thermal conductivity under pressure are sparse. This is especially so in the case of metals, where the experimental difficulties are very large. READ MORE

  4. 2. Studies of carbon nanomaterials based on fullerenes and carbon nanotubes

    Author : Agnieszka Iwasiewicz-Wabnig; Bertil Sundqvist; Eleanor E.B. Campbell; Umeå universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fullerenes; carbon nanotubes; fullerene polymers; intercalation compounds; high pressure; Raman spectroscopy; X-ray diffraction; atomic force microscopy; phase transitions; Material physics with surface physics; Materialfysik med ytfysik;

    Abstract : Materials based on fullerenes and carbon nanotubes are very much different from most “traditional” materials, primarily because they are built from nanosized molecules with highly symmetry-dependent properties. Being the subject of a very active research field over the last twenty years, carbon nanostructures proved to be indeed extraordinary. READ MORE

  5. 3. Experimental investigation of hydrocarbon formation and transformation under Earth´s upper mantle conditions

    Author : Anton Kolesnikov; Vladimir Kutcherov; Bertil Sundqvist; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; theory of deep abiotic petroleum origin; natural gas; hydrocarbons; methane; ethane; graphite; hydrogen; high pressure; high temperature; CONAC; BARS; diamond anvil cell; Raman; X-ray; gas chromatography; Engineering mechanics; Teknisk mekanik;

    Abstract : The theory of the abyssal abiotic petroleum origin considers oil and natural gas to begenerated in the Earth’s upper mantle. Hydrocarbons migrate further through the deep faults into the Earth’s crust, where they can form oil and gas deposits in any kind of rock in any kind of structural position. READ MORE

  6. 4. Student activity — a way to improve the conceptual understanding of physics in Lao PDR?

    Author : Phimpho Luangrath; Sune Pettersson; Oleg Popov; Bertil Sundqvist; Svein Sjøberg; Umeå universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Mechanics concept; Group discussion; Problem solving strategy; alternative concepts; context.; Subject didactics; Ämnesdidaktik; didactics of physics; fysikdidaktik;

    Abstract : This thesis reports about Laotian students’ understanding of the concepts of mechanics, and students’ activities when solving physics problems in groups. Totally, more than 1,000 first year university students from three universities in Laos have been tested using two versions of the Force Concept Inventory (FCI) over a period of three years. READ MORE

  7. 5. The role of practical work in physics education in Lao PDR

    Author : Thongloon Vilaythong; Sune Pettersson; Oleg Popov; Bertil Sundqvist; Ogawa Masakata; Umeå universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Cultural-Historical Activity Theory; laboratory work; Laos; pendulum experiment; physics curriculum; physics education research; practical activities; Subject didactics; Ämnesdidaktik; didactics of physics; fysikdidaktik;

    Abstract : The aim of this thesis is to get a better understanding of the role of practical work in physics education in the Lao People’s Democratic Republic (Lao PDR). The Lao PDR is one of least developed countries in the world with a weak base for science, and poor market opportunities for science graduates. READ MORE