Essays about: "Reference material"

Showing result 11 - 15 of 494 essays containing the words Reference material.

  1. 11. Growth and quality of silver birch with different improvement levels

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Hanna Liebner; [2023]
    Keywords : Betula pendula Roth; genetic improvement; tree breeding; diameter growth; stem quality; branches quality;

    Abstract : Silver birch is the most important broadleaf tree species in the context of wood production in Fennoscandia stating 12.9% of the total volume in Sweden (Nilsson et al., 2021). READ MORE

  3. 12. Effects of climate on phenology, flowering, and berry production of boreal forest understory plants

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Shakhera Akter Shimu; [2023]
    Keywords : Climate change; plant phenology; phenological traits; phenology change; cumulative temperature; phenotypic plasticity; genotypic variation;

    Abstract : Climate is changing faster than it was predicted before and consequently its impact is highly visible on many types of ecosystems globally. Effects of changing climate on forests and the environment are leading to threats for all sorts of ecosystems. READ MORE

  4. 13. Reprocessing and Characterization of Polybenzimidazole for High-Temperature Polymer Electrolyte Membrane Fuel Cells

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Douglas Björkengren; [2023]
    Keywords : polymer electrolyte membrane fuel cells; PEMFC; HTPEMFC; polymer technology; polymer characterization; reprocessing; recycling; polybenzimidazole; PBI; Technology and Engineering;

    Abstract : A reprocessing method of poly(2,2’-(m-phenylene)-5,5’-bibenzimidazole) (PBI) membranes recovered from the production line of High-Temperature Polymer Electrolyte Membrane Fuel Cells (HT-PEMFC) at Blue World Technologies (BWT) has been developed in order to reduce material loss in the production. Redissolution of scrap PBI membranes in poly(phosphoric acid) (PPA) and phosphoric acid (PA) was successful and the subsequent washing procedure produced PBI that could be redissolved in N,N-dimethyl acetamide (DMAc) and suitable for solution casting of new membranes. READ MORE

  5. 14. Multiple Fibre Bragg Grating Force Sensor

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Felix Fritzén; [2023]
    Keywords : FBG force sensor; Fiber Bragg Grating force sensing; Fiber optic force sensor; Optical force sensing; Strain-based force sensing; Bragg wavelength shift; Force measurement using FBG; Fiber optic sensing technology; Fiber optic grating sensor;

    Abstract : The purpose of this project is to explore the FBG (Fiber Bragg Grating) technology and create a force sensor. The result can be used as a basis for further projects.The project starts with force and strain measurements. The project then evolves to incorporate multiple FBG sensors. READ MORE

  6. 15. Synthesis of glass-ceramic Li2S-P2S5-based electrolyte for solid-state batteries

    University essay from Uppsala universitet/Oorganisk kemi

    Author : Leo Sjörén; [2023]
    Keywords : Solid electrolyte; Battery; sulphide; glass; electolyte; ball milling; ceramic; glass-ceramic; Batteri; elektrolyt; glas; glaskeram; svavel;

    Abstract : 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. READ MORE