Sökning: "Shielding Efficiency"

Visar resultat 1 - 5 av 14 uppsatser innehållade orden Shielding Efficiency.

  1. 1. Environmental Barrier Coatings to protect Ceramic Matrix Composites in next-generation jet engines

    Master-uppsats, Högskolan Väst/Institutionen för ingenjörsvetenskap

    Författare :Shivang Parmar; [2023]
    Nyckelord :Environmental barrier coating; ceramic matric composite; atmospheric plasma spray; suspension plasma spray; thermal cyclic fatigue; Barriärbeläggning; keramisk komposit; atmosfärisk plasmasprutning; suspensionsplasmasprutning; termisk cyklisk utmattning;

    Sammanfattning : Gas turbine engine efficiency needs to be raised in order to decrease fuel consumption, greenhouse gas emissions, and expenses. Efficiency may be improved in two ways: by reducing engine weight and raising intake temperatures. LÄS MER

  3. 2. Exposure Monitoring and Dosimetry - Optimizing Radiation Protection in Interventional Cardiology

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

    Författare :Amanda Pettersson; [2023]
    Nyckelord :Interventional cardiology; Radiation protection; Air kerma measurements; Radiation shielding; Projection angle;

    Sammanfattning : During interventional cardiology (IC), medical staff are exposed to scattered ionizing radiation from the patient, potentially leading to various radiation-induced health effects. Therefore, shielding devices are routinely used to reduce occupational exposure during IC procedures. LÄS MER

  4. 3. Development and Evaluation of an Enzyme-Based Sunscreen

    Master-uppsats, Lunds universitet/Bioteknik; Lunds universitet/Bioteknik (master)

    Författare :Karolina Eriksson Torfgård; [2023]
    Nyckelord :Enzyme activity; UV-filter; Protease; Biotechnology; Technology and Engineering;

    Sammanfattning : Ultraviolet radiation (UVR), specifically of UVA and UVB, has been associated with the development of both photoaging and photo-carcinogenesis, potentially leading to cancer. The use of sun protection in the form of UV filters is known to minimize these damages. LÄS MER

  5. 4. Starbursts at Cosmic Dawn : Formation of Globular Clusters, Ultra-Faint Dwarfs, and Population III star clusters at z > 6

    Master-uppsats, Stockholms universitet/Institutionen för astronomi

    Författare :Olof Nebrin; [2022]
    Nyckelord :Cosmology; Galaxy Formation; Globular Clusters; First Stars; Dark Matter; Cosmic Dawn; Reionization; Ultra-Faint Dwarfs;

    Sammanfattning : In the standard model of cosmology (ΛCDM) the first stars, star clusters, and galaxies are expected to have formed in short bursts of star formation in low-mass dark matter halos at high redshifts (). Up to this point, attempts to predict the properties and abundances of these luminous objects have made use of numerically expensive cosmological simulations. LÄS MER

  7. 5. Solcellers påverkan på den framtida stadsbilden : - Får vi annorlunda hus av solceller?

    Kandidat-uppsats, Jönköping University/JTH, Byggnadsteknik och belysningsvetenskap

    Författare :Maryzabel Moucha; Moa Strandberg; [2022]
    Nyckelord :Solar cells; Future urban planning; Future architecture; New era.; Solceller; Grön energi; Framtida stadsplanering; Framtida arkitektur; Ny tidsepok.;

    Sammanfattning : Introduction – With the rising of the electricity prices around the world and simultaneously higher standards on sustainability and environment on buildings, more people have begun thinking of better means of electricity supply. Solar cells have become a popular and more discussed topic that can justify for both an economical and sustainable perspective. LÄS MER