Sökning: "metal-free"

Visar resultat 1 - 5 av 8 uppsatser innehållade ordet metal-free.

  1. 1. Simulating metal ct artefacts for ground truth generation in deep learning.

    Master-uppsats, Lunds universitet/Avdelningen för Biomedicinsk teknik

    Författare :Arthur Barakat; [2023]
    Nyckelord :Technology and Engineering;

    Sammanfattning : CT scanning stands as one of the most employed imaging techniques used in clinical field. In the presence of metal implants in the field of view (FOV), distortions and noise appear on the 3D image leading to inaccurate bone segmentation, often required for surgery planning or implant design. LÄS MER

  3. 2. Direct writing metal-freebio-organic piezoelectricenergyharvester

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Zhuo Zheng; [2023]
    Nyckelord :Piezoelectric effect; metal-free; bio-organic material; γ-glycine; direct writing; energy harvester; Piezoelektrisk effekt; metallfritt; bioorganiskt material; γ -glycin; 3D-utskrift; energiskördare;

    Sammanfattning : The project is about piezoelectric energy harvesters and piezoelectric bio-organic materials.Nowadays, various kinds of energy harvesters based on micro or nano materials are appliedinmanyelectronic applications, such as wearable devices and electricity generators. LÄS MER

  4. 3. Testing the detectability of supernova ejecta from Population III stars with future ELT/ANDES

    Master-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

    Författare :Aron Kordt; [2023]
    Nyckelord :;

    Sammanfattning : The first stars, known as Population III (Pop III) stars, formed when the Universe was about 100 Myr to 200 Myr old. In contrast to the present-day Universe, star formation took place in a basically metal-free environment. Despite several decades of research, Pop III stars have not yet been directly observed. LÄS MER

  5. 4. A Comparative Study of Electrodes and Membranes for Anion Exchange Membrane Water Electrolysis Systems

    Master-uppsats, KTH/Tillämpad elektrokemi

    Författare :Parth Omprakash Dayama; [2021]
    Nyckelord :water electrolysis; membrane; electrocatalysts; anion exchange membrane; hydrogen; vattenelektrolys; membran; elektrokatalysatorer; anjonbytande membran; vätgas;

    Sammanfattning : Vätgas kan framställas från förnybara energikällor genom vattenelektrolys med anjonbytande membran (AEMWE). AEMWE har vissa fördelar jämfört med traditionell alkalisk vattenelektrolys och elektrolysmed protonledande membran. LÄS MER

  7. 5. Tuning the composition of metallic nanoparticles for catalytic applications

    Master-uppsats, KTH/Kemi

    Författare :Anthony Ropp; [2021]
    Nyckelord :catalysis; nanoparticles; frustrated Lewis pairs; synthesis; core-shell;

    Sammanfattning : Industries’ interest in nanomaterials is tremendous and catalysis is one of their applications. Catalysts allow reactions to occur under milder conditions, avoiding committing excessive heat or pressure to foster reactions. LÄS MER