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Visar resultat 1 - 5 av 16 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Development of a DNA barcode for species identification of tuna

    Kandidat-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Clara Nordquist; Jonathan Edwall; Leonora Eriksson; Nelly Mäkinen; Minna Sayehban; Matilda Styfberg; [2022]
    Nyckelord :Thunnini; D-loop; mitochondrial control region; CR; 16S; ATP8; COII; Cox2; CytB; COI; Cox1; ND2; NADH dehydrogenase 2;

    Sammanfattning : Today, DNA-barcoding with the gene COI is regularly used in the identification of fish. However, this is not an adequate way of identifying species of tuna due to COI lacking sufficient interspecies divergence. This is problematic since fraud and mislabeling are a major concern within the fish and tuna industries. LÄS MER

  3. 2. Established forest firefighting techniques: A qualitative review of practices among the Swedish fire services.

    Master-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Muhammad Humza Khan; [2021]
    Nyckelord :Forest fires; firefighting techniques; Scientometric analysis; Effectiveness; Questionnaire; Direct attack; Indirect attack; Firelines; Prescribed burning; Aerial firefighting; Flanking; Hot-spotting; Cold trailing.; Technology and Engineering;

    Sammanfattning : Methods and equipment used for fighting forest fires are different from the ones used in urban fires. Generally, the wildfires are intense, require more resources and tend to spread rapidly. LÄS MER

  4. 3. Vibration reduction over junctions in buildings

    Master-uppsats, KTH/Marcus Wallenberg Laboratoriet MWL

    Författare :Alexander Forsberg; Aras Wali; [2021]
    Nyckelord :Vibration reduction; Junction; Building acoustics; Vibrations minskning; Knutpunkt; Byggnadsakustik;

    Sammanfattning : Structure borne sound can travel multiple paths from one office to another and choosing to sound insulate a specific building element can be difficult since all the building elements are connected together and form a coupled system. The current approach by engineers when investigating transmission paths between spaces in a building is using a computer model and assuming that the junctions are firmly clamped or free. LÄS MER

  5. 4. Ljudisolering i dubbelväggskontruktioner av KL-trä : Uppskatta reduktionstal med analytisk modellering

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Drift, underhåll och akustik

    Författare :Erik Remnegård; [2020]
    Nyckelord :Ljudisolering; reduktionstal; dubbelväggskonstruktion; akustik; KL-trä;

    Sammanfattning : Rapidly growing cities require that new residential buildings be created at a matching pace. Moreover, ambitious environmental goals not only call for these buildings to be constructed swiftly, but also in a sustainable manner. Cross-laminated wood, abbreviated CLT, may partly offer a solution to these challenges. LÄS MER

  7. 5. Game engine based auralization of airborne sound insulation

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

    Författare :Jimmy Forsman; [2018]
    Nyckelord :Auralization; Building acoustics; Airborne sound insulation; EN 12354-1; Room acoustics; Audio engines for virtual reality; Game engine;

    Sammanfattning : Describing planned acoustic design by single number ratings yields a weak link to the subjective event, especially when the single number ratings are interpreted by others than experienced acousticians. When developing infrastructure, tools for decision making needs to address visual and aural perception. LÄS MER