Sökning: "Mean curvature flow"

Hittade 5 uppsatser innehållade orden Mean curvature flow.

  1. 1. Convergence of Linear Neural Networks to Global Minimizers

    Master-uppsats, KTH/Matematik (Inst.)

    Författare :Ludwig Hedlin; [2020]
    Nyckelord :Mathematics; Machine Learning; Linear Neural Networks; Matematik; Maskininlärning; Linjära neurala nätverk;

    Sammanfattning : It is known that gradient flow in linear neural networks using Euclidean loss almost always avoids critical points that have at least one eigendirection with negative curvature. Using algebraic invariants of the gradient flow we try to prove that the set of all critical points with no second-order curvature (zero Hessian) for arbitrary networks is associated to a subset of the invariants of lower dimension. LÄS MER

  3. 2. Study on free-surface aeration with high-velocity air-water flows in open-channels

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Belkiz Hasan; Paulo Monsalve; [2017]
    Nyckelord :;

    Sammanfattning : China’s biggest source of the renewable energy is hydropower, with a share of 85 %, in 2013, of the total renewable power generation. For the tenth sequential year, China has maintained the country’s leading role in global hydropower development by installing more hydropower plants than the rest of the world combined. LÄS MER

  4. 3. A Preliminary Design Tool For Radial Compressors

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Johannes Schiff; [2013]
    Nyckelord :radial compressor; centrifugal compressor; turbomachinery design tool; impeller; vaneless diffuser; vaned diffuser; wedge diffuser; Technology and Engineering;

    Sammanfattning : The aim of this thesis has been to implement a computer program capable of modelling radial compressors. The work was conducted at the Division of Thermal Power Engineering, Department of Energy Sciences at the Faculty of Engineering, Lund University. With such a large field as radial compressors, some decomposition of the subject was necessary. LÄS MER

  5. 4. A Preliminary Design Tool for Radial Compressors

    Magister-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Johannes Schiff; [2013]
    Nyckelord :Design Tool; Radial Compressors; design system; LURC; Technology and Engineering;

    Sammanfattning : The aim of this thesis has been to implement a computer program capable of modelling radial compressors. The work was conducted at the Division of Thermal Power Engineering, Department of Energy Sciences at the Faculty of Engineering, Lund University. With such a large field as radial compressors, some decomposition of the subject was necessary. LÄS MER

  7. 5. Analytical and Numerical methods for a Mean curvature flow equation with applications to financial Mathematics and image processing

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Alireza Zavareh; [2012]
    Nyckelord :Mean curvature flow; Lie group analysis; Parabolic equation; Deterministic game theoretic;

    Sammanfattning : This thesis provides an analytical and two numerical methods for solving a parabolic equation of two-dimensional mean curvature flow with some applications. In analytical method, this equation is solved by Lie group analysis method, and in numerical method, two algorithms are implemented in MATLAB for solving this equation. LÄS MER