Search for dissertations about: "dry growing"

Showing result 1 - 5 of 65 swedish dissertations containing the words dry growing.

  1. 1. Influence of water conditions on growth and mineral nutrient uptake of native plants on clacareous soil

    University dissertation from Aparna Misra, Department of Ecology, Plant Ecology and Systematics, Lund University, Sweden

    Author : Aparna Misra; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; agricultural hydrology; Lantbrukshydrologi; marklära; Växtekologi; Plant ecology; wet growing; wet dry cycles; soil solution; soil moisture; pH; nutrient poor soil; mineral nutrients; dry growing; Bicarbonate; calicole; Soil Science;

    Abstract : The studies presented in Papers I to IV illustrate the importance of soil moisture in soil solution chemistry and response of native plants to the changes induced by change in moisture regime. With the help of glasshouse experiments I tried to study the influence of different treatments of soil moisture conditions on the mineral uptake by native plants of calcareous soil. READ MORE

  2. 2. Two-Stage Conversion of Land and Marine Biomass for Biogas and Biohydrogen Production

    University dissertation from Printed in Sweden by Media-Tryck, Lund University

    Author : Valentine Nkemka; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; steam pretreatment; dry digestion; biogas; biohydrogen; Caldicellulosiruptor saccharolyticus; cadmium; anaerobic digestion;

    Abstract : The replacement of fossil fuels by renewable fuels such as biogas and biohydrogen will require efficient and economically competitive process technologies together with new kinds of biomass. A two-stage system for biogas production has several advantages over the widely used one-stage continuous stirred tank reactor (CSTR). READ MORE

  3. 3. Bioprocessing of Recalcitrant Substrates for Biogas Production

    University dissertation from Borås : Högskolan i Borås

    Author : Maryam M Kabir; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; anaerobic digestion; biogas; lignocellulose; wool; keratin; pre-treatment; co-digestion; dry digestion; economic evaluation; Resursåtervinning; Resource Recovery;

    Abstract : The application of anaerobic digestion (AD) as a sustainable waste management technology is growing worldwide, due to high energy prices as well as increasingly strict environmental regulations. The growth of the AD industry necessitates exploring new substrates for their utilisation in AD processes. READ MORE

  4. 4. Flow boiling of ammonia and propane in mini channels

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Muhammad Hamayun Maqbool; Björn Palm; Rahmatollah Khodabandeh; Satish Kandlikar; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Flow Boiling; Mini channels; Global Warming Potential; Ammonia; Propane; R134a; HFC; Two-phase; Heat Transfer; Pressure Drop; Dry out.;

    Abstract : The environmental concerns in recent times have grown especially after signing Montreal protocol. In the last ten years, researchers have focussed mainly on understanding the boiling and condensation phenomena of HFC refrigerants in minichannels. READ MORE

  5. 5. Oxidation of Fe- and Ni-aluminides in Dry and Humid Atmospheres

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Adeline Velon; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; aluminide; alloying element; SEM; high temperature oxidation; intermetallic; XPS; Fe3Al; Cr; water vapour; Ni3Al; AES;

    Abstract : Aluminides based on Ni3Al and Fe3Al offer good mechanical and corrosion properties at high temperatures and are therefore being considered in the automotive and chemical industries. The aim of this work was to study the early stages and the mechanisms of oxide growth on unalloyed Ni3Al and Fe3Al in air. READ MORE