Search for dissertations about: "w c ratio"

Showing result 1 - 5 of 37 swedish dissertations containing the words w c ratio.

  2. 1. Calcareous Algae of a Tropical Lagoon : Primary Productivity, Calcification and Carbonate Production

    Author : Juma W. Kangwe; Mats Björk; Lena Kautsky; Ian Bryceson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Plant physiology; Växtfysiologi;

    Abstract : The green algae of the genus Halimeda Lamouroux (Chlorophyta, Bryopsidales) and the encrusting loose-lying red coralline algae (Rhodophyta, Corallinales) known as rhodoliths are abundant and widespread in all oceans. They significantly contribute to primary productivity while alive and production of CaCO3 rich sediment materials on death and decay. READ MORE

  4. 2. Growth of Wide-Band Gap AlN and (SiC)x(AlN)1-x Thin Films by Reactive Magnetron Sputter Deposition

    Author : Sukkaneste Tungasmita; Gregory W. Auner; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The research presented in this thesis is focused on thin film synthesis of epitaxial wurtzite structure aluminum nitride (AlN) and related alloy, (SiC)x(AlN)1-x,by ultra-high-vacuum (UHV) reactive magnetron sputter deposition, on silicon carbide (6H-SiC) substrates. The emphasis of the work is on controlling the growth and quality of the films to be able to use the materials in electronic device applications. READ MORE

  5. 3. Direct Nanoprototyping of Functional Materials via Focused Electron Beam

    Author : Anastasia Riazanova; Lyubov M. Belova; Cornelis W. Hagen; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; EBID; nanoprototyping; nanopatterning; nanoscale; nanostructure; purification; Au; Co; SiO2; dimethyl gold acetylacetonate; dicobalt octacarbonyl; TEOS; Dual Beam;

    Abstract : During recent years the demand for nanoscale materials with tailor-made functional properties as bulk species, is continuously and progressively rising for such fields as e.g. micro- and nano-electronics, plasmonics, spintronics, bio-technology, bio-sensing and life sciences. READ MORE

  6. 4. Chloride initiated reinforcement corrosion in marine concrete

    Author : Paul Sandberg; Avdelningen för Byggnadsmaterial; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; w c ratio; cover thickness; chloride penetration; service life prediction; corrosion cells; chloride thresholds; field exposure tests; marine concrete; pozzolans; reinforcement corrosion; chloride binding; Building construction; Byggnadsteknik;

    Abstract : Factors affecting the total chloride threshold for initiation of pitting corrosion in reinforced concrete were investigated by means of field and laboratory exposure tests. Factors affecting the chloride penetration into concrete were also investigated by means of field tests. The thesis consists of a summary (86 p.) and 11 papers attached. READ MORE

  7. 5. Studies of the S-type AGB star W Aquilae : The circumstellar envelope and the fain companion

    Author : Taissa Danilovich; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; stars: binaries: spectroscopic; circumstellar matter; stars: binaries: visual; stars: evolution; stars: mass-loss; stars: AGB and post-AGB; stars: individual: W Aql;

    Abstract : Low- and intermediate-mass stars will all eventually enter the asymptotic giant branch (AGB) phase. AGB stars experience intense mass-loss, generating a significant fraction of the dust and molecular matter that enrichesthe ISM. AGB stars are also responsible for a the production of about half of all elements heavier than iron. READ MORE