Sökning: "controlled deposition"

Visar resultat 11 - 15 av 45 uppsatser innehållade orden controlled deposition.

  1. 11. A Passive Constant Flow Regulator for Drug Delivery to the Human Lung in Portable Inhaler Systems

    Master-uppsats, KTH/Medicinteknik och hälsosystem

    Författare :Maria Pereverzina; [2020]
    Nyckelord :Inhalation systems; flow regulator; passive; portable; prototype;

    Sammanfattning : Respiratory diseases, such as asthma and chronic obstructive pulmonary disease (COPD), are pathological conditions affecting the airways of the respiratory system. Currently more than 90 million people are suffering from respiratory diseases, and COPD is predicted to become the third leading cause of death in the world by 2030. LÄS MER

  3. 12. Fabrication and Characterization of Nano-Confined Pd Catalysts for CO Oxidation

    Master-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Författare :Alfred Larsson; [2019]
    Nyckelord :Catalysis Palladium Nano Nanopore CO oxidation; Physics and Astronomy;

    Sammanfattning : During this thesis nanoporous alumina has been used as a template for the synthesis of nano-confined palladium structures. The nanoporous templates have been synthesized by anodization of aluminum and characterized using atomic force microscopy (AFM), scanning electron microscopy (SEM) and small angle X-ray scattering (SAXS), resulting in good statistics of the pore diameter and interpore distance of these nanoporous structures. LÄS MER

  4. 13. Silicon surface passivation via ultra-thin SiO2, TiO2, and Al2O3 layers

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Anton Ek; [2019]
    Nyckelord :surface passivation; ALD; silicon; solar cell; SiO2; Al2O3; TiO2; stacks; characterization; optimization; RSM; temperature;

    Sammanfattning : Energy traps at the silicon surface originating from discontinuities in the lattice is detrimental to the performance of solar cells. Acting as recombination centers, they offer a location where the charge carriers may easily return to their original energy band after excitation. LÄS MER

  5. 14. Manipulation of thin metal film growth on weakly-interacting substrates using gaseous surfactants

    Master-uppsats, Linköpings universitet/Nanodesign

    Författare :Martin Konpan; [2019]
    Nyckelord :Surface physics; material science;

    Sammanfattning : Thin films are structures with thicknesses ranging from the atomic scale to the mesoscale that are used to alter the properties of a surface and/or serve as functional layers in devices. Thin metal films deposited from the vapor phase on weakly-interacting substrates, including oxides (TiO2, ZnO, SiO2 etc. LÄS MER

  7. 15. The Neoproterozoic Visingsö Group of southern Sweden : lithology, sequence stratigraphy and provenance of the Middle Formation

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Viktor Ahrenstedt; [2018]
    Nyckelord :Neoproterozoic; Visingsö Group; sequence stratigraphy; provenance; lithology; Earth and Environmental Sciences;

    Sammanfattning : The depositional setting of the Neoproterozoic Visingsö Group has long been a subject of discussion. This study aims to provide additional insights into the lithological composition and provenance of the sediments and to provide a sequence stratigraphic framework in order to define the depositional setting. LÄS MER