Sökning: "inclination angle"

Visar resultat 16 - 20 av 26 avhandlingar innehållade orden inclination angle.

  1. 16. On the System Optimization of Magnetic Circuit with Alternative Permanent Magnets and its Demagnetization

    Författare :Jonathan Sjölund; Sandra Eriksson; Leijon Mats; Sami Ruoho; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Permanent magnet machines; Finite element method; ferrite permanent magnets; linear machines; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

    Sammanfattning : Permanent magnet (PM) machines are often associated with the usage of rare earth magnets, due to their high energy density. One such rare earth magnet is the neodymium-iron-boron (NdFeB), which is mainly produced in China. Due to the global scarcity of the rare earth magnets, much interest is put into utilizing other permanent magnet materials. LÄS MER

  3. 17. Laser cutting and piercing: Experimental and theoretical investigation

    Författare :Jetro Pocorni; Alexander F. H. Kaplan; John Powell; Jan Frostevarg; William O'Neill; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Laser cutting; laser piercing; efficiency; fibre laser; CO2 laser; high speed imaging; Produktionsutveckling; Manufacturing Systems Engineering; Maskinteknik;

    Sammanfattning : This thesis concerns experimental investigations of laser cutting and piercing, with theoretical and practical discussions of the results. The thesis is made up of an introduction to laser cutting and six scientific Papers. LÄS MER

  4. 18. Performance of Compact Heat Exchanger in Non-Perpendicular Cooling Airflows

    Författare :Lisa Henriksson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Simulations; Angled; Experiments; Inclined; Heat transfer; Pressure drop; CFD; Heat exchanger;

    Sammanfattning : During recent years the main focus in the vehicle industry has been on cutting the fuel consumption and emissions as well as improving the vehicle performance. To be able to meet these demands additional systems are being introduced into the vehicle. LÄS MER

  5. 19. Development and Evaluation of Mechanical Joints for Composite Floor Elements with Cross Laminated Timber

    Författare :Nicolas Jacquier; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träbyggnad; Timber Structures;

    Sammanfattning : One of the important issues in the development of a multi-storey timber construction system is the definition of the floor solution. This thesis focuses on the development of composite floor solutions where Cross Laminated Timber (CLT) panels are used as a base element. LÄS MER

  7. 20. Reduction of metal artifacts in MR imaging of patients with total hip arthroplasty

    Författare :Gunilla Müller; Malmö Diagnostisk radiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Magnetic resonance imaging. Musculoskeletal. Hip. Hip prosthesis. Complications. Metal artifact. Metal artifact-reducing sequences MARS . Phantom studies. Artifact measurement. Image distortion.;

    Sammanfattning : Aims of the studies: To apply and compare MR imaging metal artifact reducing sequences (MARS) including subtraction imaging after contrast application in patients with metal-on-metal (MoM) hip prostheses, investigate the prevalence and characteristics of periprosthetic abnormalities, as well as their relation with pain and risk factors. [Paper I]. LÄS MER