Sökning: "Joakim Andersson"
Visar resultat 16 - 20 av 24 avhandlingar innehållade orden Joakim Andersson.
16. Study of precipitation in martensitic Fe-C-Cr alloys during tempering : Experiments and modelling
Sammanfattning : Understanding the precipitation reaction is very important since precipitation hardening is one of the most effective strengthening mechanisms in metallic alloys. In martensitic steels, a tempering heat treatment is often performed. LÄS MER
17. Microbial DNA Sequencing in Environmental Studies
Sammanfattning : The field of microbial ecology has just entered a new era of rapid technological development and generation of big data. The high-throughput sequencing techniques presently available provide an opportunity to extensively inventorize the blueprints of life. LÄS MER
18. Electron beam melting of Alloy 718 : Influence of process parameters on the microstructure
Sammanfattning : Additive manufacturing (AM) is the name given to the technology of building 3D parts by adding layer-by-layer of materials, including metals, plastics, concrete, etc. Of the different types of AM techniques, electron beam melting (EBM), as a powder bed fusion technology, has been used in this study. LÄS MER
19. Electron beam-powder bed fusion of Alloy 718 : Effect of process parameters on microstructure evolution
Sammanfattning : Additive manufacturing (AM) is the technology of building 3D parts through layer-by-layer addition of material. Of the different types of AM techniques, electron beam-powder bed fusion (EB-PBF) has been used in this study. EB-PBF can build parts by melting metallic powders using an electron beam as the energy source. LÄS MER
20. Evolution of New Genes and Functions
Sammanfattning : To answer major evolutionary questions, we need a better understanding of the effects of mutations on specific functions and organism fitness. The aim of this thesis was to elucidate how new functions evolve and potential trade-offs with the original function. LÄS MER