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In this paper, novel hybrid methodologies for modal parameters extraction using Empirical Mode Decomposition (EMD) based techniques combined with classic signal processing spectral analysis are presented. The modal frequencies are extracted by a methodology that combines EMD and Fast Fourier Transform (FFT). The damping factor is obtained by another methodology that uses FFT as a time-frequency estimator...
Xanthomonas citri subsp. citri (Xcc) is the causal agent of citrus canker, a disease that affects almost all types of citrus crops. Production of particular Xcc pathogenicity factors is controlled by a gene cluster rpf, which encodes elements of a cell–cell communication system called quorum sensing (QS), mediated by molecules of the diffusible signal factor (DSF) family. Interference with cell–cell...
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