Sökning: "concentrations difficulty"

Visar resultat 1 - 5 av 11 uppsatser innehållade orden concentrations difficulty.

  1. 1. Burning material behaviour in hypoxic environments: An experimental study examining fire dynamics of composite materials in vitiated conditions

    Master-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Robert Bray; [2020]
    Nyckelord :ORS; Fire engineering; hypoxic; polymers; Technology and Engineering;

    Sammanfattning : The progression of fire safety research has contributed to improving the guiding principles of standardised building design. Research making use of pure materials, once common in homes and workplaces, are less relevant as such materials are no longer as prevalent. LÄS MER

  3. 2. Estimating Risks of Pharmaceutical NSAID Mixtures in Surface Waters through Risk Cups : – Implications for Sustainability

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Per Mandahl; [2020]
    Nyckelord :Sustainable Development; Ecotoxicology; Risk Cup; Pharmaceuticals; Surface Water; MEC PNEC;

    Sammanfattning : Background: Use of pharmaceuticals can lead to unchanged or metabolite residues in surface water that may result in negative environmental effects. Sweden has adopted the Generational goal defining direction and changes needed to become a sustainable nation, these align with the UN Sustainable Development Goals (SDGs). LÄS MER

  4. 3. Optimization of Acquisition Time for 177- Lu SPECT with Two Energy Windows

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Fanny Mörnsjö Centofanti; [2019]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : Background & Aim: The imaging process following the treatment of 177Lu-DOTATATE is in some medical clinics demanding on both patients and the clinic. Usually a number of images are acquired, with different time intervals to the time of injection. LÄS MER

  5. 4. Dewatering Cellulose Nanofibril Suspensions through Centrifugation

    Master-uppsats, KTH/Skolan för kemivetenskap (CHE)

    Författare :Jennifer Astorsdotter; [2017]
    Nyckelord :Cellulose nanofibrils; Microfibrilated cellulose; Centrifugation; Dewatering; Fiber suspension; Cellulosa nanofibriller; CNF; Microfibrilerad cellulosa; MFC; Centrifugering; Avvattning; Fibersuspension.;

    Sammanfattning : Cellulose nanofibrils (CNF) is a renewable material with unique strength properties. A difficulty in CNF production is that CNF suspensions contain large amounts of water. If CNF suspension volume can be decreased by dewatering facilitated by centrifugation, then transportation costs and storage costs can be reduced. LÄS MER

  7. 5. The Geothermal Potential in Isla Campuzano, Nicaragua

    Kandidat-uppsats, Lunds universitet/Teknisk geologi; Lunds universitet/Väg- och vattenbyggnad (CI)

    Författare :Louise Selméus; Manuela Stierna; [2017]
    Nyckelord :Geothermal Potential; Geochemistry; Geological Mapping; ICP-OES; QGIS; Hot Springs; Waters Samples; Na-K-Ca Geothermometer; Medium Enthalpy; Nicaragua.; Technology and Engineering;

    Sammanfattning : Nicaragua has a geothermal potential of 1519 MW (CNE 2001) due to its volcano chain created by the tectonic activity between the Cocos plate and the Caribbean plate. The Ministry of Energy and Mines in Nicaragua has the ambition to have 91% of Nicaraguas energy consumption from renewables energy for 2027 where geothermal energy will constitute 22%. LÄS MER