Sökning: "physical characterization"

Visar resultat 16 - 20 av 90 uppsatser innehållade orden physical characterization.

  1. 16. Broad ion beam cross-sectioning, microscopy, and image analysis of battery electrode morphology

    Master-uppsats, Lunds universitet/Industriell Produktion

    Författare :Aamer Mohammed Saleem Siddiqui; [2022]
    Nyckelord :BIB; SEM; Li Plating; Particle cracking; Tortuosity; Image analysis; Technology and Engineering;

    Sammanfattning : Lithium-ion batteries (LiB) are witnessing an increasing demand for electric vehicles. It provides a sustainable energy storage solution that is more efficient and ecofriendly than the fossil fuels. LÄS MER

  3. 17. Deep learning for nanofluidic scattering microscopy

    H-uppsats,

    Författare :Gustaf Sjösten; [2021-06-09]
    Nyckelord :data analysis; machine learning; deep convolutional neural networks; nanofluidic scattering spectroscopy; biomolecules; physical chemistry; dark-field microscopy;

    Sammanfattning : A novel technique for label-free, real-time characterization of single biomolecules called Nanofluidic Scatter Microscopy (NSM) has recently been developed by a the Langhammer research group at Chalmers. We have created a machine learning (ML) framework consisting of deep convolutional neural networks such as U-nets, FCNNs, and YOLO in order to characterize single biomolecules through kymographs collected through NSM, as an alternative approach to a standard data analysis method (SA). LÄS MER

  4. 18. Gate driver solutions for high power density SMPS using Silicon Carbide MOSFETs

    Master-uppsats, Mittuniversitetet/Institutionen för elektronikkonstruktion

    Författare :Farhan Akram; [2021]
    Nyckelord :SiC MOSFETs; Gate drivers; DC-DC converter; High power and efficiency power supplies;

    Sammanfattning : Discrete silicon carbide (SiC) power devices have unique characteristics that outpace those of silicon (Si) counterparts. The improved physical features have provided better faster switching, greater current densities, lower on-resistance, and temperature performances. LÄS MER

  5. 19. Magnetron Sputter Epitaxy of High-quality GaNand Plasma Characterization of the Process : Degree Project–Master’s Thesis

    Master-uppsats, Linköpings universitet/Tunnfilmsfysik

    Författare :Yi-Ling Lo; [2021]
    Nyckelord :GaN; Semiconductors; Nanomaterials; Thin film; Magnetron Sputtering; Epitaxy; XRD; Physical Vapor Deposition;

    Sammanfattning : Several sputtering depositions were done by direct current (DC) magnetron sputtering epitaxy (MSE) techniquefor the goal of improving the growth rate and crystalline quality of GaN thin film on Al2O3 substrate. Thegrowth rate was higher when substrate-to-target distance D = 7 cm compared with D = 9. LÄS MER

  7. 20. Characterization of Coliform Bacteria in Drinking Water Treatment Plant

    Master-uppsats, KTH/Industriell bioteknologi

    Författare :Oskar Westöö; [2021]
    Nyckelord :Coliform bacteria; Coliform detection; Coliform characterization; PCR; Drinking water treatment.;

    Sammanfattning : Termen koliforma bakterier beskriver en grupp indikatororganismer som används för att bedöma renligheten och integriteten hos reningsverk samt distributionssystem som nyttjas vid dricksvattenproduktion. För närvarande ställer styrande förvaltningsmyndigheter endast krav på detektion av antalet koliforma bakterier i dricksvatten via odlingsbaserade metoder. LÄS MER