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Visar resultat 1 - 5 av 42 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Water born cooling of closed greenhouses : An enclosed vertical water curtain cooling system

    Magister-uppsats, Högskolan Dalarna/Institutionen för information och teknik

    Författare :Ahmad Kamal; [2022]
    Nyckelord :Greenhouses; Water born cooling; Enclosed water curtain; radiative cooling; Surplus heat energy;

    Sammanfattning : The greenhouses play a key role in food sustainable production, the purpose of the greenhouses is to make an artificial suitable environment to grow different kinds of plants. The cost of energy used in the greenhouses to ensure the optimum temperature, humidity, and CO2 concentration, makes up a large part of the final cost of food. LÄS MER

  3. 2. Shallow near-surface lapse rates and their connection to glacier meteorology on Storglaciären and Rabots glaciär, Northern Sweden

    Master-uppsats, Stockholms universitet/Institutionen för naturgeografi

    Författare :Moon Taveirne; [2022]
    Nyckelord :Temperature lapse rate; glacier meteorology; near-­surface lapse rate; ablation gradient;

    Sammanfattning : Glacier melt is strongly impacted by climate and meteorology. Temperature lapse rates are used to model glacier melt, and the accuracy of the spatial distribution of modelled melt can be impacted by the lapse rate used in modelling. Additionally, the observed spatial distribution of melt is highly temporally variable. LÄS MER

  4. 3. Surface crevasses on Svalbard: Spatial Distribution Analysis with Focus on the Lomonosovfonna Ice Cap

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Monika Hawrylak; [2021]
    Nyckelord :crevasses; spatial distribution; model; glacier velocity; Lomonosovfonna; Svalbard;

    Sammanfattning : Understanding the formation mechanics of glacial crevasses is crucial in a variety of glacial applications. Besides being a serious safety hazard during field campaigns, crevasses influence calving rates, mass balance, and the hydrological network of glaciers. LÄS MER

  5. 4. Online Metallurgical Mass Balance and Reconciliation

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Emil Andersson; [2021]
    Nyckelord :dynamic; froth flotation; mass balancing; mineral processing; reconciliation;

    Sammanfattning : In mineral processing, one of the most important and versatile separation methods is flotation. Flotation utilizes the different surface properties of the valuable minerals in the ore to separate them from the less valuable gangue material in the ore. Crushed and ground ore is mixed with water and fed into flotation tanks. LÄS MER

  7. 5. Modelling the effects of climate change on ice dynamics at Kangerlussuaq Glacier, Greenland

    Master-uppsats, Stockholms universitet/Institutionen för naturgeografi

    Författare :Jamie Barnett; [2021]
    Nyckelord :Glacier; Greenland; Ice Sheet; Outlet; Discharge; Sea level; Kangerlussuaq; calving; ice mélange; melt; retreat;

    Sammanfattning : A consequence of climate change is rising global sea levels, predicted to bring increased socio-economic and environmental impacts to coastal communities. The Greenland Ice Sheet has become a prominent contributor to rising sea levels, a consequence of the Arctic warming at twice the rate of the global average. LÄS MER