Sökning: "mathematical models"

Visar resultat 16 - 20 av 597 uppsatser innehållade orden mathematical models.

  1. 16. Air quality prediction in metropolitan areas using deep learning methods

    Master-uppsats, Stockholms universitet/Institutionen för data- och systemvetenskap

    Författare :Augustin Ionut Ionascu; [2023]
    Nyckelord :air quality; forecasting; time-series; univariate; multivariate; multi-step; Attention; Transformer;

    Sammanfattning : The rapid growth of the world's urban population shows that people are increasingly moving to cities. In recent decades, the frequent occurrence of smog caused by increasing industrialization has brought environmental pollution to record highs. LÄS MER

  3. 17. Development of a Compact Drive System for Total Artificial Heart

    Master-uppsats, KTH/Medicinteknik och hälsosystem

    Författare :Hossin Bakhtiari; [2023]
    Nyckelord :Total Artificial Heart; Drive System; Miniaturization; Electric Motor; Motor Performance Evaluation; Motor Selection; Totalt artificiellt hjärta; drivsystem; miniatyrisering; elektrisk motor; motorprestanda utvärdering; motor-urval;

    Sammanfattning : Over eight decades of research into total artificial hearts (TAHs) has significantly contributed  to saving end-stage heart failure patients. However, at the current stage of development TAHs have several limitations, one of them being their bulkiness. LÄS MER

  4. 18. Energy Consumption Modelling for 5G Radio Base Stations with Machine Learning

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Daniel Ringwald; Daniel Larsson; [2023]
    Nyckelord :Machine learning; energy modelling; radio base station; 5G; neural network; gradient boosted trees; Technology and Engineering;

    Sammanfattning : With an ongoing energy crisis in Europe and an ever-evolving political climate where the environmental impacts of industries are regarded as a top priority, the topic of energy efficiency is high on everyone’s agenda. Mathematical optimization of energy consumption requires a model of the problem at hand. LÄS MER

  5. 19. A geometric approach to calculating the limit set of eigenvalues for banded Toeplitz matrices

    Master-uppsats, Lunds universitet/Matematik LTH

    Författare :Teodor Bucht; [2023]
    Nyckelord :Toeplitz matrices; Banded Toeplitz matrices; Limit set; Eigenvalues; Mathematics and Statistics;

    Sammanfattning : This thesis is about the limiting eigenvalue distribution of n × n Toeplitz matrices as n → ∞. The two classical questions we want to answer are: what is the limit set of the eigenvalues, and what is the limiting distribution of the eigenvalues. Our main result is a new approach to calculate the limit set Λ(b) for a Laurent polynomial b, i.e. LÄS MER

  7. 20. Mathematical Model for Inverter Power Output in PV Parks

    Master-uppsats, Uppsala universitet/Institutionen för materialvetenskap

    Författare :Shashidhar Suragimath; [2023]
    Nyckelord :Mathematical Modelling; PV System; Energy Systems; Solar Inverter; Forecasting;

    Sammanfattning : Solar photovoltaic (PV) parks have proliferated all over the world as a result of the growing demand for electricity, and especially electricity from renewables. As these parks become larger and complex, it becomes increasingly important to develop accurate and efficient mathematical models that can be used to predict their performance and optimize their design. LÄS MER