Advanced search

Showing result 1 - 5 of 7 essays matching the above criteria.

  1. 1. Computation of Eigenmodes in Three-Dimensional Structures

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Daniel Lilja; Olof Hummelgren; [2020]
    Keywords : ;

    Abstract : In this thesis the eigenmodes and eigenvalues of three dimensional structures are analyzed using the Python environment FEniCS in combination with an implementation of the Arnoldi method in MATLAB for calculation of eigenpairs. This is done by considering separable solutions of the wave equation and subsequently expressing these as the solutions to an eigenvalue problem. READ MORE

  3. 2. Movement tracking of the carotid artery with 4D ultrasound imaging

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Anny Eriksson Bernholtz; [2019]
    Keywords : imaging; movement tracking; ultrasound; Technology and Engineering;

    Abstract : The leading cause of death in the world is cardiovascular diseases. Scientific discoveries have been made that correlate the movement of the arterial walls and blood flow patterns with cardiovascular diseases. These movements have been studied with ultrasound 2D imaging. READ MORE

  4. 3. Pressure loss characterization for cooling and secondary air system components in gas turbines

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Frida Isaksson; [2017]
    Keywords : Gas turbines; cooling and secondary air system; pressure losses; discharge coefficient; minor loss; one-dimensional modelling;

    Abstract : There is a constant struggle to increase the efficiency in gas turbines, where one method is to have a higher inlet temperature to the turbine. Often, this results in temperatures higher than the critical temperature of the materials, which makes cooling of the components an important part of the turbine. READ MORE

  5. 4. Framskrivning av ALS data med TanDEM-X

    University essay from SLU/Dept. of Forest Resource Management

    Author : André Wästlund; [2016]
    Keywords : radar; interferometri; framskrivning; InSAR;

    Abstract : För att ha möjlighet att sköta skogen på ett hållbart sätt krävs att vi har tillgång till tillförlitligt data om det skogliga tillståndet. Fjärranalys är och kommer vara en allt viktigare teknik för att tillägna sig denna information på ett kostnadseffektivt sätt och med önskad kvalitet. READ MORE

  6. 5. Establishment of an open 3D steam turbine flutter test case

    University essay from KTH/Energiteknik

    Author : Di Qi; [2016]
    Keywords : ;

    Abstract : An open three-dimensional (3D) flutter test case for steam turbines is presented. Unlike previous research on turbine flutter, the geometry is an open resource and is from a test case originally presented by Durham University. READ MORE