Sökning: "ethanol"

Visar resultat 1 - 5 av 335 uppsatser innehållade ordet ethanol.

  1. 1. Shifting focus from yields to food supply : an evaluation of the ‘number of people fed per hectare’ indicator at farm and national level

    Master-uppsats, SLU/Department of Molecular Sciences

    Författare :Ida Ekqvist; [2024]
    Nyckelord :Land use efficiency; Sustainability indicators; Agricultural productivity; Food production;

    Sammanfattning : The challenge of feeding a growing global population while reducing the pressure on climate and ecosystems has gained much attention in research over the last decades. A crucial yet often overlooked aspect in research addressing this complex challenge is the efficiency of food production in meeting nutritional needs within the constraints of global cropland resources. LÄS MER

  2. 2. The active phase of Pt(110) during catalytic CO oxidation

    Master-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Hira Qazilbash; [2024]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : CO oxidation is an important topic in heterogeneous catalysis, due to its role in industrial processes such as pollution reduction in the auto industry, and ethanol or other fuel production. In the automotive catalytic converters CO oxidation reduces the poisonous CO to CO2 by reacting with O2. LÄS MER

  3. 3. Nya metoder för fernissaborttagning – En komparativ studie

    Kandidat-uppsats, Göteborgs universitet/Institutionen för kulturvård

    Författare :Alica Larsson; [2023-11-08]
    Nyckelord :Oil painting; Varnish removal; Evolon® CR; Tissue-gel composite;

    Sammanfattning : In recent years, new varnish removal methods have emerged in conservation, with two notable approaches: the tissue-gel composite method, involving gel-coated tissue material pressed onto varnished surfaces for simultaneous dissolution and binding, and the use of Evolon® CR textile saturated with solvent. Evolon® CR offers an alternative to gels and tissue-gel composites, aiming to eliminate residue from gel thickening agents and the need for mechanical cleaning, while enabling the use of non-polar solvents in a bound form. LÄS MER

  4. 4. A PILOT STUDY ON STAIN REDUCTION Effects of Stains, Cleaning Agents, and Cleaning Methods on Polyester Textiles

    Master-uppsats, Göteborgs universitet/Institutionen för kulturvård

    Författare :Karin Hindborg; [2023-08-28]
    Nyckelord :colour measurements; spot cleaning; suction table; tensile testing; textile con-servation;

    Sammanfattning : The thesis was an experimental pilot study that investigated efficiency and effects of stains and cleaning agents on polyester textiles. A literature review and interviews with textile conservators were used to understand the degradation of polyester fibres and to find suit-able staining and cleaning agents to use in the experiments of the study. LÄS MER

  5. 5. The Impact of Policy on the Production of Liquid Biofuels

    Kandidat-uppsats, Lunds universitet/Ekonomisk-historiska institutionen

    Författare :Alexandra Danielsson; [2023]
    Nyckelord :Business and Economics;

    Sammanfattning : In the following thesis, the development of the biofuels sector in the United States will be analysed using environmental economics. Around year 2005, there was a significant increase in the production of liquid biofuels. Hence, the thesis aims to explore the reasons behind the increase. LÄS MER