Essays about: "Johannes Sjölund"

Found 2 essays containing the words Johannes Sjölund.

  1. 1. A Deep Learning Approach to Detection and Classification of Small Defects on Painted Surfaces : A Study Made on Volvo GTO, Umeå

    University essay from Umeå universitet/Institutionen för matematik och matematisk statistik; Umeå universitet/Institutionen för matematik och matematisk statistik

    Author : Johannes Rönnqvist; Johannes Sjölund; [2019]
    Keywords : Deep Learning; Image Recognition; Classification; Defect Detection; Automation; Neural Networks; Convolutional Neural Networks; Phase-measuring Deflectometry;

    Abstract : In this thesis we conclude that convolutional neural networks, together with phase-measuring deflectometry techniques, can be used to create models which can detect and classify defects on painted surfaces very well, even compared to experienced humans. Further, we show which preprocessing measures enhances the performance of the models. READ MORE

  2. 2. Real-time Thermal Flow Predictions for Data Centers : Using the Lattice Boltzmann Method on Graphics Processing Units for Predicting Thermal Flow in Data Centers

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Johannes Sjölund; [2018]
    Keywords : data center; airflow; computational fluid dynamics CFD ; lattice boltzmann method LBM ;

    Abstract : The purpose of this master thesis is to investigate the usage of the Lattice Boltzmann Method (LBM) of Computational Fluid Dynamics (CFD) for real-time prediction of indoor air flows inside a data center module. Thermal prediction is useful in data centers for evaluating the placement of heat-generating equipment and air conditioning. READ MORE