Essays about: "composition"

Showing result 1 - 5 of 1824 essays containing the word composition.

  1. 1. Tallsåddens potential för återbeskogning av marker med tjocka humustäcken eller torv i norra Sverige

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Torben Svensson; [2021]
    Keywords : Pinus sylvestris; skogsföryngring; skogssådd; sådd; tall; torvmark; torvtäckt mark; våt fastmark; återbeskogning; Peat covered soil; peatland; Pinus sylvestris; reforestation; Scots pine; sowing; wet mineral soil;

    Abstract : Kostnaden för frösådd är oftast lägre än för plantering och lyckade sådder ger vanligen återväxt med högre stamantal. I praktiskt skogsbruk tillämpas skogssådd inte på alla marker där åtgärden kunde vara ett realistiskt alternativ. Särskilt stor är tvekan att så på marker med tjocka humustäcken. READ MORE

  2. 2. Biodiversity and habitat conditions in reaches with high flow velocity along gradients in hydrological and geomorphological alteration : A study of six rivers in Sweden

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Anders Aalto; [2021]
    Keywords : Hydrology; Geomorphology; Biological variables; Human alteration;

    Abstract : The vast majority of rivers in the developed world are affected by human alteration, which in turn negatively affects the species that rely on these highly diverse and species rich areas to survive. Homogenization of previously heterogenic areas due to a change in water discharge and the substrate availability in the rivers is often regarded as the main reason for the loss of species richness in rivers and the riparian zone. READ MORE

  3. 3. Application of HEC-HMS modelling on River Storån,Model evaluation and analysis of the processes by using soil moisture accounting loss method

    University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Author : Pooja Makki Vijayaprakash; [2021]
    Keywords : River Storån; HEC-HMS; SMA; streamflow; baseflow; evapotranspiration; Technology and Engineering;

    Abstract : River Storån, a major tributary of Lake Bolmen which is a source of fresh water to Skåne county of Sweden is found to alter the color of water in the lake due to the presence of natural organic matter. Hence it is of utmost importance to study the river to understand the dynamics of generation and flow of water from the river to the lake. READ MORE

  4. 4. Investigation of sustainable methods to reduce water hardness in drinking water treatment plants

    University essay from Lunds universitet/Miljövetenskaplig utbildning

    Author : Élise Karlsson Faudot; [2021]
    Keywords : Water hardness; sustainability; Bulltofta water treatment plant; water hardness reduction; plant biomass; plastic; pumice stone; adsorption; Earth and Environmental Sciences;

    Abstract : Water hardness is caused by magnesium and calcium ions (Mg2+ and Ca2+), and can result in formation of deposits, destruction of soap and increase of copper corrosion in old plumbing pipes. To soften the originally hard groundwater supplying 20% of Malmö’s drinking water, Bulltofta water treatment plant imports burned lime from Germany. READ MORE

  5. 5. Optical characterisation of AAO/CsPbBr3 perovskite nanocomposites

    University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Author : Klára Nováková; [2021]
    Keywords : perovskite; scintillator; optoelectronics; semiconductor; X-ray detection; Physics and Astronomy;

    Abstract : Direct bandgap metal lead halide perovskites offer promising optoelectronic properties desirable in a wide range of applications including photodetection. However, the incomplete and poor understanding of the photophysical processes taking place in these materials, along with their poor stability, is the bottleneck for optimisation and further development of metal halide perovskite devices. READ MORE