Sökning: "arc properties"

Visar resultat 1 - 5 av 83 uppsatser innehållade orden arc properties.

  1. 1. Influence of pulsing on PVD TiAlN coating microstructure and mechanical properties : Master thesis project on the impact of deposition parameters on performance and properties of PVD titanium aluminum nitride.

    Master-uppsats, Karlstads universitet

    Författare :Marcus Roseen; [2023]
    Nyckelord :;

    Sammanfattning : This thesis investigates the influence of pulsing on the mechanical properties of PVD TiAlN coatings. The thesis focuses on defects caused by droplets during the arc-evaporation technique by altering the duty time, which affects mechanical properties. LÄS MER

  3. 2. Tribological characterization of a ball bearing subjected to an electric field : Electric drivetrain tribology

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Muhammad Umar Farooq; [2023]
    Nyckelord :Ball bearing; electric drivetrain; tribology; electric field; characterization; bearing currents; discharge;

    Sammanfattning : Electric machines are widely used in for instance the automotive industry in electric vehicles and in wind turbines. The electrical machines have mechanical bearings as an integral part used to transmit power and load. In addition, the main function includes reducing friction between interacting surfaces. LÄS MER

  4. 3. In the Core of the Storm: Revisiting Inflation Hedging Properties Within and Across Asset Classes

    D-uppsats, Handelshögskolan i Stockholm/Institutionen för finansiell ekonomi

    Författare :Jakub Kacperczyk; Moritz Kornherr; [2023]
    Nyckelord :Inflation hedging; Inflation risk premium; Inflation forecasting; Bond-Stock Correlation;

    Sammanfattning : The recent surge in inflation has reignited discussions on hedging inflation risks, forming the focal point of this study. In our paper we consider conventional asset classes from 1968 to 2023 as well as alternative assets from 2020 to 2023 and find that no asset class provides a statistically significant hedge against core inflation shocks, while commodities and currencies can hedge headline and energy inflation risk. LÄS MER

  5. 4. Concept investigation into Metal Plasma Source for High Powered Space Applications

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Ludvig Borg; [2023]
    Nyckelord :High-powered; Electric Propulsion; Vacuum Arc Thruster; VASIMR; Metal Plasma; Magnetohydrodynamics; COMSOL Multiphysics;

    Sammanfattning : This thesis explores the potential of utilizing metal-based plasma sources as a sustainable solution for high-powered electric propulsion and its implications for future interplanetary travel. Focusing on the Vacuum Arc Thruster and the Variable Specific Impulse Magnetoplasma Rocket engine, the study encompasses numerical simulations, analytical comparisons, and performance analyses to assess the feasibility of metal plasma fuels in space missions. LÄS MER

  7. 5. The Toddler of Swedish Real Estate - A Case Study on the Founding of Studentbostäder i Sverige

    D-uppsats, Handelshögskolan i Stockholm/Institutionen för finansiell ekonomi

    Författare :Per Malmborg; Emil Höckerfelt; [2023]
    Nyckelord :Real Estate; M A; Student Housing; Non-Cash Deals;

    Sammanfattning : This thesis presents and analyses the underlying motives of the founding of Studentbostäder i Sverige, subsequently renamed Studentbostäder i Norden, and how the deal can be value-creating for the shareholders. The three founders, SBB, Amasten, and Offentliga Hus, contributed student housing properties in exchange for shares in the new entity, thus making it a non-cash deal. LÄS MER