Essays about: "Fourier series"

Showing result 6 - 10 of 42 essays containing the words Fourier series.

1. 6. Regularizing An Ill-Posed Problem with Tikhonov’s Regularization

   University essay from Linköpings universitet/Analys och didaktik; Linköpings universitet/Tekniska fakulteten

   Author : Herman Singh; [2022]
   Keywords : Inverse problem; Ill-posed problems; Tikhonov’s regularization; Fourier series; Helmholtz equation;

   Abstract : This thesis presents how Tikhonov’s regularization can be used to solve an inverse problem of Helmholtz equation inside of a rectangle. The rectangle will be met with both Neumann and Dirichlet boundary conditions. A linear operator containing a Fourier series will be derived from the Helmholtz equation. READ MORE

3. 7. Predicting the Temporal Dynamics of Turbulent Channels through Deep Learning

   University essay from KTH/Strömningsmekanik och Teknisk Akustik

   Author : Borrelli Giuseppe; [2021]
   Keywords : Turbulent Flows; Deep Learning; Minimal Channel Flow; Fourier POD FFT-POD ; Data-driven analysis; Long-short-term-memory LSTM networks.;

   Abstract : The interest towrds machine learning applied to turbulence has experienced a fast-paced growth in the last years. Thanks to deep-learning algorithms, flow-control stratigies have been designed, as well as tools to model and reproduce the most relevant turbulent features. READ MORE

4. 8. Wiener-Lévy Theorem : Simple proof of Wiener's lemma and Wiener-Lévy theorem

   University essay from Linnéuniversitetet/Institutionen för matematik (MA)

   Author : Jose Eduardo Vasquez; [2021]
   Keywords : Wiener-Lévy Theorem; Wiener s Lemma; Fourier series; Complex analysis;

   Abstract : The purpose of this thesis is to formulate and proof some theorems about convergences of Fourier series. In essence, we shall formulate and proof Wiener's lemma and Wiener-Lévy theorem which give us weaker conditions for absolute convergence of Fourier series. READ MORE

5. 9. Bearing condition monitoring : An investigation on the possibility of monitoring aging of the lubricating grease by means of acoustic emission and temperature.

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

   Author : Dilesh Raj Shrestha; [2021]
   Keywords : Acoustic Emission; Fourier Transform; Infrared Spectroscopy; Condition Monitoring; Total Acidic Number; Fast Fourier Transform; Scanning Electron Microscopy; Rheology; Bleed Oil; Grease degradation;

   Abstract : Grease is among the most widely used lubricants in rolling element bearings. Proper understanding of the effect of lubrication due to grease aging can provide a significant increase in the life of the engineering systems. However, at present, there is no sufficient understanding of the grease aging effect in rolling elements bearing. READ MORE

6. 10. Clutter Detection in Radar Applications

   University essay from Linköpings universitet/Institutionen för datavetenskap

   Author : Pedram Kasebzadeh; [2020]
   Keywords : ;

   Abstract : Radars have been used for detection purposes in safety applications (i.e., blind spot detection radar in cars) extensively. The existing detection methods, however, are not flawless. READ MORE