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Visar resultat 11 - 15 av 1026 uppsatser innehållade orden var v.

  1. 11. Off-State Stress Effects in AlGaN/GaN HEMTs : Investigation of high-voltage off-state stress impact on performance of and its retention in hybrid-drain ohmic gate AlGaN/GaN HEMTs

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Ivan Krsic; [2023]
    Nyckelord :HEMT; GaN; off-state stress; memory effects; drain leakage current; dynamic RDSon; threshold voltage instabilities; charge redistribution; HEMT; GaN; stress i avslaget tillstånd; minneseffekter; läckströmmen; dynamisk RDSon; instabiliteten hos styrets tröskelspänning; omfördelningen av laddningar;

    Sammanfattning : High electron mobility transistors (HEMTs) realized using AlxGa1-xN/GaN are relatively new technology which is prominent for high-speed and high-power applications. Some of the main problems with this technology were identified as dynamic RDSon, current collapse and threshold voltage instabilities due to the off-state stress. LÄS MER

  3. 12. Thresholds to the ancestors : An examination of south-west portals with regards to cult and symbolism

    Master-uppsats, Uppsala universitet/Arkeologi

    Författare :Oskar Bransell; [2023]
    Nyckelord :South-west portals; grave cult; ancestor worship; necromancy; doors of the dead ; Viking Age; Sydvästportar; gravkult; förfädersdyrkan; nekromanti; de dödas dörrar ; Vikingatiden;

    Sammanfattning : This thesis examines the relevancy of south-west portals with regards to their potential usage in post-burial ritual activity with particular focus on the deposition of sacrificial offerings. South-west portals are a type of stone constructions found on the edges of mounds and stone settings in eastern central Sweden usually dating to the Viking Age (c. LÄS MER

  4. 13. Hundägares motivation till utfodring med färskfoder och deras inställning till sterilisering av foder: en enkätstudie

    Master-uppsats, SLU/Dept. of Clinical Sciences

    Författare :Moa Lindell; [2023]
    Nyckelord :färskfoder; RMBD; BARF; högtrycksbehandling; HPP; livsmedelsbestrålning;

    Sammanfattning : Att utfodra sin hund med färskfoder, även känt som Raw meat based diets (RMBD), har ökat i popularitet de senaste åren. Förespråkare av dieten menar att den är överlägsen traditionella våt- och torrfoder gällande näringsinnehåll och positiva effekter på hundens hälsa. LÄS MER

  5. 14. Optimization of Thermal Comfort on Electric Buses : A Comprehensive Study on Passenger Satisfaction in Stockholm, Sweden

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

    Författare :Ellinor Hambraeus; Maxwell Minotta Cuervo; [2023]
    Nyckelord :Electric bus; Bus temperature; Thermal comfort; Energy efficiency; Predicted Mean Vote; Equivalent temperature v; Elbuss; busstemperatur; termisk komfort; energieffektivisering; Predicted Mean Vote; Ekvivalent temperatur vii;

    Sammanfattning : The transition towards electrification in the bus sector is necessary to achieve the global climate goals and has gained significant traction in recent years. However, there are critical challenges associated with this transition, one of them being the absence of excess heat that traditional combustion engines provided to warm the bus cabin. LÄS MER

  7. 15. Comparison of psychedelic therapies versus placebo in the treatment of psychiatric illnesses: a systematic review of randomized trials including placebo controls

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

    Författare :Aleksandra Barbara Barstowe; [2023]
    Nyckelord :psychedelic-assisted therapy; placebo; psychiatric illness; psykedelisk-assisterad terapi; psykiatrisk sjukdom; Social Sciences; Medicine and Health Sciences;

    Sammanfattning : Psychedelics have long been recognized for their powerful effects on the human psyche and psychedelic-assisted therapy is becoming increasingly acknowledged as an effective therapeutic intervention. Placebos are used in clinical research to validate the efficacy of a therapy or treatment. LÄS MER