Essays about: "Alkali"

Showing result 11 - 15 of 83 essays containing the word Alkali.

  1. 11. Wet Spinning of Lignin and Cellulose Precursor Fibers Using Cold Sodium Hydroxide Dissolution

    University essay from KTH/Fiber- och polymerteknologi

    Author : Nazariy Voytyuk; [2022]
    Keywords : Alkaline Dissolution; Cold Alkali Process; Lignin; Precursor Fibers; Wet spinning; Alkalisk upplösning; Kall alkaliprocess; Lignin; Prekursorfibrer; Våtspinning;

    Abstract : 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. READ MORE

  3. 12. Low-carbon concretes in infrastructures : Applicability, potential and carbon footprint focusing on the Parisian Metro Line L18

    University essay from KTH/Betongbyggnad

    Author : Romain Durand; [2022]
    Keywords : ;

    Abstract : Low-carbon concretes are more and more commonly used to limit the environmental impact of concrete structures. Among concrete structures, infrastructures are characterized by their high load-bearing function (foundations, bridges, aqueducts, dams, etc.). READ MORE

  4. 13. Protein content in Brewer’s spent grain and its characteristics : upcycling spent grain from food waste to protein source

    University essay from SLU/Department of Molecular Sciences

    Author : Moa Rönnhagen; [2022]
    Keywords : Barley; food waste; brewers’ spent grain; beer; protein; extraction; characterization; future food;

    Abstract : The United Nations have adopted sustainable development goals (SDGs). Within these SDGs, food waste management and waste valorization, an increase in value, is found. For these reasons, it was of interest to study Brewers’ spent grain, a residual product from beer production. READ MORE

  5. 14. Production and evaluation of enzymatically processed oat fibres as potential prebiotics

    University essay from Lunds universitet/Bioteknik (master)

    Author : Elin Johansson; [2021]
    Keywords : Arabinoxylan; AXOS; L.brevis; B.adolescentis; Biotechnology; Technology and Engineering;

    Abstract : Insoluble oat bran fibres, with substantial arabinoxylan (AX) content, are obtained as a byproduct from industrial processing of oat. By further processing it is possible to solubilise and hydrolyse AX into (arabino)xylo-oligosaccharides ((A)XOS). READ MORE

  6. 15. Low-dimensional Magnetism in Novel 2D Honeycomb Materials

    University essay from KTH/Tillämpad fysik

    Author : Sebastian Johnsen; [2021]
    Keywords : Applied physics; Materials physics; Quantum materials; Magnetism; Muons; Neutrons; Tillämpad fysik; Materialfysik; Kvantmaterial; Magnetism; Myoner; Neutroner;

    Abstract : A Kitaev quantum spin liquid is a phase of matter predicted to host excitations that can be used to preform fault-tolerant quantum computation. Though the theoretical prediction of such a state is on firm footing, its realisation in real materials has proven to be elusive. READ MORE