Sökning: "air"

Visar resultat 1 - 5 av 4916 uppsatser innehållade ordet air.

  1. 1. DIFFERENCES ON THE IMPACTS AND ORIGINS OF POLLEN IN FOUR MAJOR SWEDISH CITIES BETWEEN 2014 AND 2019

    Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Författare :Jean-Patrick Ridet-Lagorce; [2024-02-12]
    Nyckelord :Pollen; Allergy; Antihistaminic; Airborne transport; Geographical origins;

    Sammanfattning : Allergies are widespread in the world and coming from various sources, one of the causes being airborne allergens and especially, pollen. The negative impact of pollen is enhanced by pollution and climate change which are some of the biggest issue humankind is facing today. LÄS MER

  3. 2. Skalningseffekter av medelstora pölbränder i syrereducerad miljö

    Kandidat-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Tim Hemel; Philip Frenander; [2024]
    Nyckelord :Sökord: syrereducerad atmosfär; medelstora pölbränder; skalningseffekter. Key words: hypoxic air; oxygen reduced atmosphere; medium pool fire; scaling effects; LOC; yields.; Technology and Engineering;

    Sammanfattning : This bachelor's thesis focuses on how scaling the pool diameter affects flammable liquids in an oxygen reduction system (ORS). This topic in the study of pool fire behavior in hypoxic air has been only lightly discussed in previous literature. Therefore, the goal of this thesis work is to further broaden the understanding of hypoxic air. LÄS MER

  4. 3. An Environmental and Health Benefit and Cost analysis of Renewable Energy in Nigeria : A comparison between the investment in solar energy plant and hydropower plant

    Magister-uppsats, Högskolan Dalarna/Institutionen för kultur och samhälle

    Författare :Ruth Ashibuogwu; [2024]
    Nyckelord :Environment; Health; Solar Energy and Hydropower;

    Sammanfattning : This study analyses the environmental and health benefits associated with the use of renewable energy sources, focusing on the costs and savings involved. The research employs a comprehensive cost-benefit analysis approach, comparing the costs associated with generating energy from a 10 megawatts solar energy power plant versus a 10 megawatt hydropower plant. LÄS MER

  5. 4. Trädplantering i den hårdgjorda staden : utmaningar och lösningsalternativ

    Kandidat-uppsats, SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

    Författare :Ingela Carlgren; [2024]
    Nyckelord :gatuträd; urbana träd; trädplantering; gatumiljö; urban jord; kompaktering; skelettjord; makadamsubstrat; rotceller; suspended pavement;

    Sammanfattning : Träd är viktiga delar av våra städer. De bidrar med många ekosystemtjänster, som klimatreglering, dagvattenhantering och positiva hälsoeffekter. De är också viktiga identitetsskapande element. LÄS MER

  7. 5. Exploring potential E-fuel production pathways for maritime and aviation sectors in France : a techno-economic and environmental assessment

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Mathieu Minaud; [2024]
    Nyckelord :;

    Sammanfattning : The aviation and maritime industries pose significant challenges for decarbonization, having increased activity in the past decade. One promising solution to limit emissions in these sectors is Electrofuels (E-fuel), derived from water electrolysis hydrogen and captured CO2 or nitrogen. LÄS MER