Sökning: "anisotropic"
Visar resultat 21 - 25 av 111 uppsatser innehållade ordet anisotropic.
21. Development of a post-processing pipeline for Myelin Water Imaging at 7 T
Kandidat-uppsats, Lunds universitet/Avdelningen för Biomedicinsk teknikSammanfattning : Myelin water imaging, MWI, is a non-invasive method used for quantifying the amount of myelin in the brain that can aid the understanding of brain plasticity and neurodegenerative diseases, such as Multiple Sclerosis (MS). Conventional MWI is done at a field strength of 3 T, though there are indications that higher field strength may lead to higher resolution images. LÄS MER
22. Non-Linear strain paths in Sheet Metal Forming
Uppsats för yrkesexamina på avancerad nivå, Blekinge Tekniska Högskola/Institutionen för maskinteknikSammanfattning : Today's automotive requirements have resulted in complex Sheet Metal Forming (SMF) processes of Sheet Metal (SM) with reduced formability, and thus it is crucial to be able to predict formability accurately to prevent material failure during SMF. Formability predictions today utilize Forming Limit Curves (FLC)s in Finite Element Analysis (FEA), but FLCs are not valid for the Non-Linear Strain Paths (NLSP)s generated during SMF. LÄS MER
23. Identifying Important Features to Minimize Hole Deviation in Percussive Drilling
Master-uppsats, KTH/Maskinkonstruktion (Inst.)Sammanfattning : Hole deviation is one of the most significant problems in drilling applications. Deviated holes result in inefficient blasting and have severe economic impacts due to increased equipment consumption. Conversely, straighter holes help in increasing production scales and reduce operational costs. LÄS MER
24. FE Simulations of Mounting of an Anisotropic Work Piece Material to Reduce the Effects of Vibration
Master-uppsats, Lunds universitet/Industriell ProduktionSammanfattning : Optical cavities should be designed to be insensitive to vibration in all directions. The study of the behavior of the material used to develop an optical cavity is vital for the cavity to be insensitive in all orders. LÄS MER
25. Models of the Universe : An analysis of the asymptotic behaviour of non-linear dynamical systems
Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)Sammanfattning : In this thesis we present some relevant theory, and then we rigorously investigate the existence intervals and the asymptotic behaviors of three cosmological models. The first model we investigate is based on the Friedmann-Lemaître-Robertson-Walker (FLRW) metric, which is consistent with the cosmological principle. LÄS MER