Sökning: "Jönsson Winter"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden Jönsson Winter.

  1. 1. Bekämpningsmedelsläckage från grundvatten till ytvatten - Undersökning av ett avrinningsområde i södra Skåne

    Master-uppsats, Lunds universitet/Miljövetenskaplig utbildning

    Författare :Ellen Jönsson; [2017]
    Nyckelord :legacy pesticides; pesticide fate; pesticide contamination; groundwater - surface water interaction; pesticide monitoring; groundwater contamination; stream water contamination; stream pollution; groundwater pollution; groundwater outflow.; Agriculture and Food Sciences; Earth and Environmental Sciences;

    Sammanfattning : From a small stream draining an agricultural catchment area in south Sweden, a temporal analysis of the occurrence of legacy pesticides was carried out and correlated with contemporary groundwater levelling, precipitation and flow rate of the stream, in order to evaluate groundwater outflow as an entry route for pesticides in the stream. Based on continuous measurement data from two periods of 12 respectively 16 months, in total eight legacy pesticides and three metabolites of legacy pesticides, were detected from early spring to late autumn, when runoff water to the stream was low and groundwater constituted the main water source of the stream. LÄS MER

  3. 2. System identification for control of temperature and humidity in buildings

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Ida Synnøve Jönsson; [2015]
    Nyckelord :Technology and Engineering;

    Sammanfattning : HVAC systems are widely used to provide a good indoor air quality in buildings. Buildings stand for a substantial part of the total energy consumption in developed countries, and with an increased focus on cost reductions and energy savings, it is necessary to use intelligent and energy-efficient controllers. LÄS MER

  4. 3. Renkavlens biologi - möjligheter till kontroll

    Kandidat-uppsats, SLU/Dept. of Crop Production Ecology

    Författare :Magnus Jönsson; [2015]
    Nyckelord :renkavle; Alopecurus myosuroides Huds.; bekämpning; växtföljd; herbicidresistens; ACCase-hämmare; ALS-hämmare; fördröjd sådd; groningsvila; gräsogräs; utbredning; klimatförändring; höstspannmål; falsk såbädd; black - grass; weed control; herbicide resistance; seed dormancy; grass weeds; distribution; climate change; winter cereal; crop rotation; stale seedbed; delayed drilling; ALS - inhibitior; ACCase - inhibitor;

    Sammanfattning : Renkavle har under lång tid varit ett stort problem för lantbrukare i stora delar av norra Europa och har etablerat sig på större arealer även i Sverige. Genom sin bio-logi är renkavle mycket väl anpassad till odling av höstsådd spannmål, speciellt i kombination med reducerad jordbearbetning. LÄS MER

  5. 4. Transportation and deposition of volcanic ash from Iceland to the Arctic

    Kandidat-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Författare :Josefin Jönsson; [2014]
    Nyckelord :Grímsvötn 2011; volcanic eruption; the Arctic; transportation and deposition of volcanic ash; albedo; air traffic; Physics and Astronomy; Earth and Environmental Sciences;

    Sammanfattning : As the Arctic will become more available to shipping traffic in the future, given the current trend of diminishing ice sheets continues, the emission of particles and gases originating from ships will increase in the Arctic. The emission of particles and gases can affect the sensitive Arctic environment in many ways, e.g. LÄS MER

  7. 5. Investigation of a landfill leachate treatment plant in southern Sweden

    Master-uppsats, Lunds universitet/Examensarbeten i biologi

    Författare :Alessandro Sarno; [2014]
    Nyckelord :nitrification; landfill leachate; on-site treatment; nitrogen mass balance; nitrogen removal; ammonia volatilization.; Biology and Life Sciences;

    Sammanfattning : Dissolved ammonia is often referred to as one of the major contaminants in landfill leachates. Discharge concentration limits for municipal wastewater treatment plants in Sweden have been tightened in order to meet higher water quality standards. LÄS MER