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Time-frequency and time-scale analysis of Barkhausen noise signals
(PROFESSIONAL ENGINEERING PUBLISHING LTD, 2009)
Carrying out information about the microstructure and stress behaviour of ferromagnetic steels, magnetic Barkhausen noise (MBN) has been used as a basis for effective non-destructive testing methods, opening new areas in ...
Modulation of frequency preference in heterogeneous populations of theta-resonant neurons
(Pergamon-Elsevier, 2020)
Neurons from several brain regions resonate in the theta frequency range (4-12 Hz), displaying a higher voltage response to oscillatory currents at a preferred 'resonant' frequency (f(R)). Subthreshold resonance could ...
Fitting the frequency-dependent parameters in the Bergeron line model
(Elsevier B.V., 2014-12-01)
A new transmission line modeling - TLM is proposed based on the well-established Bergeron method. The conventional Bergeron model is characterized by the line representation through concentrated longitudinal and transversal ...
Digital signal processing for self-vibration monitoring in grinding: A new approach based on the time-frequency analysis of vibration signals
(2019-10-01)
The occurrence of chatter can generate parts outside the dimensional and geometric tolerances or even cause irreversible damage, such as changes to the hardness and surface roughness of the ground part. The objective of ...
Characterization of cross frequency couplings produced by harmonic and non-harmonic frequency bands during seizure activity from intracerebral recordings in patients candidate to epilepsy surgery
(Society for Neuroscience, 2018)
Cross frequency coupling (CFC) phenomenon has been proposed to be functionally involved in neuronal communication, memory formation and learning. Besides, experimental findings have shown that phase-amplitude (PAC) and ...
Nonlinear Dynamics of Internet Congestion Control: A Frequency-domain Approach
(Elsevier Science, 2014-04)
In this paper a fluid-flow model for TCP congestion avoidance combined with different AQM schemes is analyzed. The conditions for the appearance of Hopf bifurcations are stated analytically using frequency-domain techniques. ...
Characterization of transmission lines based on frequency-domain and time-domain measurement techniques
(Universidade Tecnológica Federal do ParanáCuritibaBrasilMestrado em Engenharia Elétrica e Informática IndustrialUTFPR, 2018-05-21)
The importance of electrical cables in modern data communication and power transmission systems cannot be overstated. Efficient and secure transmission of either data or energy depends on the healthy state of electrical ...
Trap density characterization through low-frequency noise in junctionless transistors
(2013)
This work evaluates, for the first time, the trap density of Junctionless Nanowire Transistors (JNTs) of two technologies produced with different gate dielectrics through the low-frequency noise (LFN) characterization. ...
Trap density characterization through low-frequency noise in junctionless transistors
(2013)
This work evaluates, for the first time, the trap density of Junctionless Nanowire Transistors (JNTs) of two technologies produced with different gate dielectrics through the low-frequency noise (LFN) characterization. ...