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Visar resultat 1 - 5 av 18 uppsatser som matchar ovanstående sökkriterier.
1. Synthesis of glass-ceramic Li2S-P2S5-based electrolyte for solid-state batteries
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Oorganisk kemiSammanfattning : In this project, solid sulphur based Li3PS4 electrolytes doped with Li4SiO4 were synthesised using two methods. In method A, a bought β-Li3PS4 electrolyte from Nei Corp was doped with 5 mole per cent Li4SiO4, resulting in a glass-ceramic electrolyte. LÄS MER
2. Wet spinning of carbon fiber precursors from cellulose-lignin blends in a cold NaOH(aq) solvent system
Master-uppsats, Linnéuniversitetet/Institutionen för byggd miljö och energiteknik (BET)Sammanfattning : Carbon fiber (CF) is predominantly produced from fossil-based sources and is therefore an area of interest for further development towards a more sustainable society. The purpose of this thesis work was to investigate the possibility of producing precursor fibers (PFs) for CF production from a blend of renewable cellulose andlignin. LÄS MER
3. Reaching the top without doping : Athletes’ attitudes towards clean sports in Finland
Master-uppsats, Malmö universitet/Institutionen Idrottsvetenskap (IDV)Sammanfattning : Background: Sports have a significant impact on people all around the world. Although sport brings a lot of joy, a sense of togetherness, and pride, it also involves ethically difficult issues such as doping. Doping in sports is a growing global concern that jeopardizes sports ethics, values, and integrity (The World Anti-Doping Agency WADA, a). LÄS MER
4. Mechanical properties of viscose filament : Made from recycled cotton textile and softwood dissolving pulp
Master-uppsats, Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)Sammanfattning : The textile industry is one of the largest industries in the world and it causes up to 10 % of the global greenhouse gas emissions. With large environmental issues of cotton- and oil-based textiles, other options are explored such as man-made fibers producing fibers like viscose and lyocell. LÄS MER
5. Wet Spinning of Lignin and Cellulose Precursor Fibers Using Cold Sodium Hydroxide Dissolution
Master-uppsats, KTH/Fiber- och polymerteknologiSammanfattning : Användningen av cellulosa och lignin för prekursorfibrer (PF) för kolfibrer (CF) är ett mycket intressant forskningsområde på grund av den stora miljöpåverkan som dagens PF-fossilbaserade råvara PAN har. Denna avhandling fokuserar på att utveckla PF med ett kallt NaOH-upplösningssystem med cellulosakoncentrationer från 4,5 till 5,5 viktprocent med varierande massaviskositet och tillsats av lignin från 0-40 viktprocent jämfört med cellulosa. LÄS MER