Sökning: "Lack of fusion"

Visar resultat 1 - 5 av 41 uppsatser innehållade orden Lack of fusion.

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. Svenska gymnasieelevers uppfattningar om storlek och avstånd i universum

   Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Fysiska institutionen; Lunds universitet/Institutionen för utbildningsvetenskap

   Författare :Karolin Nilsson; [2023]
   Nyckelord :Astronomy; Misconceptions; Educational Research; Science Education; High School Students; Physics and Astronomy;

   Sammanfattning : This study aims to investigate how students in Swedish upper secondary school conceptualize sizes and distances of some astronomical objects, such as planets and stars, as well as the students’ general knowledge of the objects themselves. The study uses a constructivist framework and explores how well the students’ conceptions match the scientific facts and definitions, and what misconceptions and alternative conceptions they hold. LÄS MER

4. 3. Effektiviseringsmöjligheter i administrativt arbete för projekthantering: En fallstudie

   M1-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Författare :Agnes Gylling; Hugo Nordahl; [2023]
   Nyckelord :Projekthantering; Projektledning; Administrativt arbete; Dataflödesanalys; Processkartläggning; Dataflödesdiagram; Lean; Effektivisering;

   Sammanfattning : Syfte: Syftet med examensarbetet är att Identifiera effektiviseringsmöjligheter för administrativt arbete i projekthantering. Det finns intresse i att undersöka hur det går att standardisera och effektivisera de administrativa arbetet i projektprocesserna. LÄS MER

5. 4. Can Wizards be Polyglots: Towards a Multilingual Knowledge-grounded Dialogue System

   Master-uppsats, Uppsala universitet/Institutionen för lingvistik och filologi

   Författare :Evelyn Kai Yan Liu; [2022]
   Nyckelord :Knowledge-grounded dialogue; Dialogue systems; Generative question answering; Multilingual question answering; Multilingual dialogue systems; Transfer learning; Multi-task learning; Sequential training; Conversational AI; Natural Language Processing NLP ; Deep learning; Machine learning;

   Sammanfattning : The research of open-domain, knowledge-grounded dialogue systems has been advancing rapidly due to the paradigm shift introduced by large language models (LLMs). While the strides have improved the performance of the dialogue systems, the scope is mostly monolingual and English-centric. LÄS MER

7. 5. Powder Rheology within AM production : Evaluating Compressibility, Permability, & Aeration for 316L Powders Within SLM Processes

   M1-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Författare :André Leo; [2022]
   Nyckelord :Powder rheology; AM; Additive manufacturing; BPF; Powder bed fusion; SLM; Selective laser melting; FT4 powder rheometer; Compressibility; Permeability; Aeration; Pulver reologi; AM; Additiv tillverkning; BPF; Pulver bed fusion; SLM; Selektiv lasersmältning; FT4 pulver reometer; kompressibilitet; permeabilitet; luftning;

   Sammanfattning : Additive manufacturing with the use of metals have been a steadily increasing field, being able to create products with a higher degree of complexity than traditional processing techniques. SLM is a popular AM process that uses metal powder as feedstock, and one of the key components of this process is the powder rheology. LÄS MER