Sökning: "material samples"

Visar resultat 1 - 5 av 1192 uppsatser innehållade orden material samples.

  1. 1. Process parameter optimisation for Waspaloy using Laser-Directed Energy Deposition with Powder

    Kandidat-uppsats, Högskolan Väst/Institutionen för ingenjörsvetenskap

    Författare :Johannes Lövhall; [2024]
    Nyckelord :Process parameter optimisation; Waspaloy; Laser-Directed Energy Deposition with Powder;

    Sammanfattning : Material utilisation is of importance in the manufacturing industry formaking the most of each material, minimising waste and increasing cost-effectiveness. In this thesis, samples of Waspaloy built with the method of L-DED-P has been analysed in order to investigate how process pa-rameters influence the build quality and geometrical accuracy in as-builtobjects. LÄS MER

  3. 2. Inre erosion i tätjord av morän, laboratorieprovning

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Robin Edvinsson; [2024]
    Nyckelord :erosion; tätjord; morän; laboratorieprovning; kontakterosion;

    Sammanfattning : In the spring of 2022, large parts of an approximately 80-year-old earth fill dam in Burvattnet Jämtland were demolished. The demolished parts consisted of a homogeneous dust body of glacial moraine that was founded on soil. LÄS MER

  4. 3. Beständigheten hos brandimpregnerat trä

    Kandidat-uppsats, Lunds universitet/Avdelningen för Brandteknik

    Författare :Filip Engström; Hannes Psajd; [2024]
    Nyckelord :Fire retardant treated wood; ISO 5660–1; Permanence; Euroclass; Cone Calorimeter; ConeTools; Infrared spectroscopy; Technology and Engineering;

    Sammanfattning : This report explores the properties of fire-retardant treated wood. This report has investigated the permanence for this material as well as seeing if the process of accelerated aging, which are used to determine the life span of the material, can be comparable to natural aging. LÄS MER

  5. 4. Monitoring marine alien and invasive species. A comparison between the traditional method (eRAS) and DNA-based identification of species.

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

    Författare :Josefin Holm; [2023-08-22]
    Nyckelord :;

    Sammanfattning : There is a major concern with the uncontrolled spreading of alien and invasive species, caused by an increase in travelling by boat globally. These are dispersed via ballast water, by fouling on ships and in fishing gear. LÄS MER

  7. 5. Från observation till teori. En intervjustudie om biologins karaktär och arbetsmetoder.

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

    Författare :Amanda Bladh; [2023-06-12]
    Nyckelord :Biologins karaktär; biologins arbetsmetoder; biologiämnets centrala innehåll; gymnasielärares resonemang; undervisning i biologiämnet.;

    Sammanfattning : The nature of biology and the nature of practical methods in biology are a part of the core content of the biology syllabus in the Swedish upper secondary school. The nature of biology describes the subject's epistemology such as the knowledge and how it is arranged in theories, laws and models. LÄS MER