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Continuous Time Frequency Domain Analysis of Ф-OTDＲ Nonstationary Signals
Journal of Harbin University of Science and Technology, 2021 Most of the natural vibration signals are stationary and modulated by the interference light signal of the distributed optical fiber vibration sensing system.
XU Tao, LI Li
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Frequency Domain Analysis of Tractor Tyre Enveloping Properties
International Journal of Engineering and Management Sciences, 2019 Main source of vibration excitation for off-road vehicles are ground profile undulations. Most unprepared terrains are characterized by wavelength of unevenness that is of the order of magnitude of the contact length between tire and ground, so that ...
Boris Stojic
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Characterization of Frequency Domains of Bandlimited Frame Multiresolution Analysis
Mathematics, 2021 Framelets have been widely used in narrowband signal processing, data analysis, and sampling theory, due to their resilience to background noise, stability of sparse reconstruction, and ability to capture local time-frequency information.
Zhihua Zhang
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Fatigue effect in ferroelectric crystals: Growth of the frozen domains [PDF]
, 2012 The model of the fatigue effect during cyclic switching caused by growth of the frozen domain area with charged domain walls has been proposed. It was claimed on the basis of the previous experimental results that for switching in increasing field the ...
Akhmatkhanov, A. R. +3 more
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Random Fatigue Analysis of Drill-Strings in Frequency Domain
MATEC Web of Conferences, 2017 Predicting fatigue damage induced by vibrations is of benefit to oil and gas industry. In this paper a spectral method is developed to estimate the damage of vibration, including both deterministic and random vibration, on the fatigue life of ...
Zheng JiaHao, Yang Jianming, Yang Ping
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Design and Embedded Implementation of Secure Image Encryption Scheme Using DWT and 2D-LASM
Entropy, 2022 In order to further improve the information effectiveness of digital image transmission, an image-encryption algorithm based on 2D-Logistic-adjusted-Sine map (2D-LASM) and Discrete Wavelet Transform (DWT) is proposed.
Heping Wen +13 more
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The Validity of Ultra-Short-Term Heart Rate Variability during Cycling Exercise
Sensors, 2023 Ultra-short-term heart rate variability (HRV) has been validated in the resting state, but its validity during exercise is unclear. This study aimed to examine the validity in ultra-short-term HRV during exercise considering the different exercise ...
Yukiya Tanoue +8 more
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Comparison of Frequency Domain and Time-Domain Methods for Aeromechanical Analysis
International Journal of Rotating Machinery, 2016 Unsteady flow around an oscillating plate cascade and that through a single compressor rotor subject to vibration have been computationally studied, aimed at examining the predictive ability of two low fidelity frequency methods compared with a high ...
M. T. Rahmati
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Complex Independent Component Analysis of Frequency-Domain Electroencephalographic Data
, 2003 Independent component analysis (ICA) has proven useful for modeling brain and electroencephalographic (EEG) data. Here, we present a new, generalized method to better capture the dynamics of brain signals than previous ICA algorithms.
Amari +24 more
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Enhancing latent palmprints using frequency domain analysis
Intelligent Systems with ApplicationsLatent palmprints are integral to crime scene investigations, constituting a significant portion of encountered prints. They often suffer from poor ridge impressions, noise, and pronounced creases, setting them apart from other palmprint types.
Javad Khodadoust +5 more
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