Search for dissertations about: "natural stone"

Showing result 1 - 5 of 44 swedish dissertations containing the words natural stone.

  1. 1. On stone indentations in district heating pipes : pipe and backfill interactions and life time aspects

    University dissertation from Chalmers tekniska högskola

    Author : Stefan Nilsson; RISE.; [2000]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  2. 2. Human Impact on Vegetation of Coastal Estonia during the Stone Age

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Anneli Poska; Uppsala universitet.; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Estonia; pollen analysis; Holocene; pre-agrarian human impact; introduction of arable farming; Geovetenskap; NATURAL SCIENCES Earth sciences; NATURVETENSKAP Geovetenskap; Quarternary Geology; kvartärgeologi;

    Abstract : This thesis presents the dynamics of vegetation and human impact on the environment in coastal Estonia during the Holocene. The sediments of five mires and two lakes from the mainland and from Saaremaa island, and a cultural layer of an Early Mesolithic settlement at Pärnu River were investigated by means of pollen analysis (modern and fossil pollen spectra), 14C dating (AMS and conventional dating) and numerical analysis of pollen data (rarefaction analysis, zonation and principal components analysis). READ MORE

  3. 3. HNO3-Induced Atmospheric Corrosion of Copper, Zinc and Carbon Steel

    University dissertation from Stockholm : Kemi

    Author : Farid Samie; KTH.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Nitric acid; deposition velocity; mass transport; air velocity; relative humidity; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi;

    Abstract : The role of nitric acid (HNO3) on the atmospheric corrosion of metals has so far received little or no attention. However, the last decades of decreasing sulphur dioxide (SO2) levels and unchanged HNO3 levels in many industrialized countries have resulted in an increased interest in possible HNO3-induced atmospheric corrosion effects. READ MORE

  4. 4. Studies on the frost resistance of natural stone

    University dissertation from Division of Building Materials, LTH, Lund University

    Author : Lubica Wessman; Lunds universitet.; Lund University.; [1997]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; äldre byggnader; kalksten; laboratorieförsök; sten; granit; sandsten; natursten; frostbeständighet; beständighet;

    Abstract : This work deals with the effects of freeze-thawing on the deterioration of some types of natural stone, especially stones frequently used in old buildings in Sweden. Laboratory studies were performed mainly on Gotland sandstone. This stone has been widely used in old buildings in the whole Baltic region, and is often badly deteriorated. READ MORE

  5. 5. Stream monitoring using near-infrared spectroscopy of epilithic material

    University dissertation from Umeå : Ekologi, miljö och geovetenskap

    Author : Jan Persson; Umeå universitet.; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Streams; environmental monitoring; Water Framework Directive; water quality; biological impact; epilithic material; near-infrared spectroscopy; diatoms; NATURAL SCIENCES Earth sciences; NATURVETENSKAP Geovetenskap;

    Abstract : The European Union Water Framework Directive (WFD), with initiatives to manage surface water resources, has increased the need for fast and inexpensive methods for monitoring conditions in streams. The objective of this thesis is to assess the potential of near-infrared spectroscopy (NIRS) of epilithic material to become such method. READ MORE