Sökning: "Ray Daniel"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden Ray Daniel.

  1. 1. Water-based Synthesis of Superparamagnetic X-ray Fluorescent Contrast Agents

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Daniel Cortés García; [2022]
    Nyckelord :Nanoparticles; SPIONs; XFCT; co-precipitation.; Nanopartiklar; SPIONs; XFCT; samfällning;

    Sammanfattning : Nowadays, nanomedicine is one of the most important application areas fornanoparticles (NPs), where the design and synthesis of new hybrid nanostructures have attracted much interest, when combining properties and functionalities from different constituents. For example, they have been extensivelyused for dual-mode imaging. LÄS MER

  3. 2. Optimisation of parallel k-d trees using heuristics for neuron touch detection task

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

    Författare :Daniel Benedí García; [2022]
    Nyckelord :;

    Sammanfattning : Neuroscience has benefited from neuronal network simulation and an important task in the simulation is finding points in space where two neurites approach each other so a synapse could be formed. The task of finding the touching points could be seen as similar to the ray collision in ray tracing in computer graphics. LÄS MER

  4. 3. PERFORMANCE OF THE PHOTODETECTOR FOR THE ACTIVE SHIELD OF THE COSI SPACE TELESCOPE

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Daniel Álvarez Franco; [2022]
    Nyckelord :Geant4; scintillation; BGO; CsI; simulation; COSI; telescope; photoelectric effect;

    Sammanfattning : The COmpton Spectrometer and Imager (COSI) is a space telescope that aims to study the soft gamma regime (0.2-5 MeV), capable of performing spectroscopy, imaging and polarimetry of cosmic gamma sources. LÄS MER

  5. 4. Catalytic Graphitization of Biomass : For the Production of Graphite Materials

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Daniel Andersson; André Brunnberg; Emil Lind; [2021]
    Nyckelord :;

    Sammanfattning : In recent years the material graphite has been heavily studied since its use in widespread applications have increased, for example batteries, vehicles, and solar cells. When the need for this type of material increases the efficiency and the sustainability of the production methods must be taken into consideration. LÄS MER

  7. 5. Life and fracture in very high cycle fatigue of a high strength steel

    Master-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Daniel Karlsson; [2021]
    Nyckelord :Very high cycle fatigue; VHCF; Fractography; Fine granular area; FGA; High strength tool steel; Ultrasonic testing equipment;

    Sammanfattning : Classical fatigue models teach that there is an intrinsic fatigue limit for steels, representing a level of stress that is too low for regular crack growth where every cyclic load propagates a fatigue crack through the material. Modern application with extreme lifetimes has shown that fatigue will still take place in steels with stress levels well below the expected fatigue limit. LÄS MER