-
21
Image Evolution Using 2D Power Spectra
Published 2019-01-01“…We refine fitness measures based on Fourier analysis and spatial frequency and apply them within a genetic programming environment for image synthesis. …”
Get full text
Article -
22
Analysis Methods for Aerodynamic Instability Detection on a Multistage Axial Compressor
Published 2021-01-01“…Compared with the traditional harmonic Fourier analysis methods, the harmonic Fourier mean amplitude analysis method can capture the detail of the pressure signal more accurately and it can effectively prevent instability misjudgment. …”
Get full text
Article -
23
Catastrophic and violent tornadoes: a detailed review of physical-mathematical models
Published 2024-11-01“…A method for nonstochastic long-term forecasting using the pattern recognition theory and Fourier analysis has recently been developed. A close correlation between the tidal forces of the Sun–Moon–Earth gravitational system and the total number of tornadoes per year was found. …”
Get full text
Article -
24
Damage Identification by Using a Self-Synchronizing Multipoint Laser Doppler Vibrometer
Published 2015-01-01“…Mode shape curvature is calculated by numerical interpolation and windowed Fourier analysis. The results show that the artificial crack can be identified precisely from the change of natural frequencies and the difference of mode shape curvature squares.…”
Get full text
Article -
25
Distinctive morphological variation of saccular otoliths in relation to hermaphroditism type in Sarpa salpa and Serranus scriba (Teleostei: Perciformes) from the Mediterranean Sea...
Published 2024-09-01“…This study aimed to describe and compare the morphological characteristics of saccular otoliths (sagittae) in the protandrous hermaphrodite Sarpa salpa and the synchronous hermaphrodite Serranus scriba collected from the Bizerte site located in northwestern Tunisia, and to examine the effect of hermaphroditism type on the otolith shape and size at the inter- and intraspecific levels, using elliptical Fourier analysis. At the interspecific level, a significant bilateral asymmetry in shape was observed between the left and right otoliths. …”
Get full text
Article -
26
Scaling and intermittent properties of oceanic and atmospheric <i>p</i>CO<sub>2</sub> time series and their difference in a turbulence framework
Published 2025-01-01“…Scaling exponents are estimated through Fourier analysis, and their average quantities were considered globally for all parameters, as well as for different ecosystems such as coastal shelf, coral reefs and open ocean. …”
Get full text
Article