Sökning: "Fourier Transform FT"

Visar resultat 1 - 5 av 15 uppsatser innehållade orden Fourier Transform FT.

  1. 1. Synthesis and characterization of lactic acid-based elastomers

    Master-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Afsaneh Makhdoumi; [2023]
    Nyckelord :Lactic acid; Elastomer; Bio-based elastomer; Renewable resource;

    Sammanfattning : Synthesized polymer from bio-based and renewable resources reported as an attractive substitution for fossil-fuel based polymers. Therefore, this work has focused on using sustainable material for production of elastomers to reduce the environmental impact of fossil-based elastomers and overcome the shortage of non-renewable fuels. LÄS MER

  3. 2. EEG-Based Speech Decoding Using a Machine Learning Pipeline

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Julia Önerud; [2023]
    Nyckelord :EEG; EEG-Decoding; Speech-like; Neuro; Neurotech; Machine-learning; SVM; Feature Extraction; Feature Selection; Mentalab; Inner Speech; OVR; Baseline-Correction; State-of-the-art; State-of-the-art Accuracy; Directions; Emotions;

    Sammanfattning : his project aims to find a method that will help fill the information gaps in electroencephalography (EEG) brain-computer interfaces (BCI) research, by creating a pipeline method that allows for quicker research iterations than current state-of-the-art methods. The pipeline method is a multi-step processstarting from the recording EEG data from a subject performing a thought paradigm action, continuing with processing and decoding of the data, and ending with visualization and analysis the decoded results. LÄS MER

  4. 3. Double-layer vs single-layer cryogels as a dye affinity chromatography column, comparison study

    Master-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Thi Hoai Thu Trinh; [2022]
    Nyckelord :dye-affinity chromatography; single-layer cryogels; double-layer cryogels; protein purification; bovine serum albumin; biochemistry; Chemistry;

    Sammanfattning : Dye affinity chromatography is one of the chromatography techniques which uses dye as a ligand for protein purification. In this study, single-layer poly(acrylamide-allyl glycidyl ether) cryogel was prepared, which contains free epoxy groups at sub-zero temperature. LÄS MER

  5. 4. Framställning av multilagerfilmen AlN-HQ

    Kandidat-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

    Författare :Matilda Karlsson; [2021]
    Nyckelord :ALD; CVD; MLD;

    Sammanfattning : The method Atomic Layer Deposition, ALD, has been available since the 1970´s and it has opened the possibility to fabricate methods for inorganic thin films on a nanoscale. Later the interest for fabricating organic thin films with Molecular Layer Deposition, MLD, and controlling both the thickness and the composition of the film on a molecular scale. LÄS MER

  7. 5. Biodegradation and ageing of bio-based thermosetting resins from lactic acid

    Master-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Lara Lopes Gomes Hastenreiter; [2019]
    Nyckelord :bio-based polymer; lactic acid; glycerol; ethylene glycol; pentaerythritol; biodegradation; ageing; characterisation; DSC; TGA; FTIR; tensile;

    Sammanfattning : The need for replacing petroleum-based polymers has been increasing and bio-based polymers prove to be a suitable solution. The aim of this thesis was to synthesize bio-based resins with different chemical architectures to evaluate the effect of the structure on the properties and on their response to ageing and biodegradation. LÄS MER