Sökning: "Total Acidic Number"

Hittade 4 uppsatser innehållade orden Total Acidic Number.

  1. 1. Bearing condition monitoring : An investigation on the possibility of monitoring aging of the lubricating grease by means of acoustic emission and temperature.

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Dilesh Raj Shrestha; [2021]
    Nyckelord :Acoustic Emission; Fourier Transform; Infrared Spectroscopy; Condition Monitoring; Total Acidic Number; Fast Fourier Transform; Scanning Electron Microscopy; Rheology; Bleed Oil; Grease degradation;

    Sammanfattning : Grease is among the most widely used lubricants in rolling element bearings. Proper understanding of the effect of lubrication due to grease aging can provide a significant increase in the life of the engineering systems. However, at present, there is no sufficient understanding of the grease aging effect in rolling elements bearing. LÄS MER

  3. 2. Neutralizing acidic wastewater from the pickling process using slag from the steelmaking process : A pilot study in project "Neutralsyra"

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Julia Brännberg Fogelström; Amelie Lundius; Hedda Pousette; [2017]
    Nyckelord :Slag; Neutralization; Lime; Lime Concentrate; Acidic wastewater; pH; Landfill; Byproducts; Slagg; Neutralisering; Kalk; Kalkkoncentrat; Surt avfallsvatten; pH; Deponi; Restprodukter;

    Sammanfattning : Properties and origins of two byproducts from steelmaking plants, slag and acidic wastewater, are investigated in this report. The slags' suitability as neutralizing agents of acidic wastewater from the pickling process, with regard to amount of slag required and the environmental impact of the produced byproducts is investigated. LÄS MER

  4. 3. Higher temperatures increase nutrient availability in the High Arctic, causing elevated competitive pressure and a decline in Papaver radicatum

    Kandidat-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Hanna Modin; [2016]
    Nyckelord :Papaver radicatum; High Arctic; soil conditions; Zackenberg; Greenland; climate change; global warming; Arctic vegetation; Arctic plant; Arctic Poppy; active layer depth; soil moisture; competitive pressure; Earth and Environmental Sciences;

    Sammanfattning : Linking changes in the vegetation cover with factors that can moderate the effects of climate change is central to our understanding of Arctic ecosystems and their susceptibility to change. The aim of this study has been to investigate the moderating effects of soil conditions. LÄS MER

  5. 4. Phosphorus in agricultural soils around the Baltic Sea : comparisons of different laboratory methods as indices for phosphorus leaching to waters

    Magister-uppsats, SLU/Dept. of Soil and Environment

    Författare :Ann Kristin Eriksson; [2009]
    Nyckelord :Soil phosphorus methods; phosphorus losses; agricultural catchments; Baltic states;

    Sammanfattning : Eutrophication of the Baltic Sea is a serious problem. A major contributing factor is diffuse losses of phosphorus (P) from agricultural land in surrounding countries. In order to estimate P losses, environmental monitoring of small agriculture-dominated catchments is being carried out in most of these countries. LÄS MER