Frequency-domain analysis
Implementation of user element subroutines for frequency domain analysis of wave scattering problems with commercial finite element codes
... an analysis approach to this problem we use a simple model of a canyon with the shape of a circular sector containing two localized regions with different material ...the frequency domain response is ...
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Effects of Verapamil on Indexes of Heart Rate Variability After Acute Myocardial Infarction
... standard deviation of all NN intervals (SDNN) and 58.9% for pNN50. Frequency domain analysis re- vealed a significant increase in the absolute high- frequency power of 58.5% after ...
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Análisis de las Técnicas de Procesamiento de Señal comúnmente utilizadas para la Detección de Barras Rotas en Motores de Inducción
... signal analysis (e.g., frequency domain analysis, instantaneous frequency, frequency-time analysis, multiresolution analysis) have been studied to perform an early ...
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Aumento de resolución de sensores en el dominio de la frecuencia construidos con nanomaterialesResolution improvement of frequency domain sensors modified with nanomaterials
... the frequency shift generated by the QCM when there is a mass loading on its ...the frequency shift was accomplished with the development of an experimental prototype that implements the principle of ...
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In the Absence of Post-
... The key Spivakian concept, and the one that builds the bridge between classical analysis of (present) focalisation and the absent one coming to visibility through the “what if?” question, is “critical intimacy”. ...
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THE POSSIBILITIES OF APPLICATION SINGLE-DIRECTION NEURAL NETWORKS IN AN EXPERT SYSTEM FOR IDENTIFICATION OF DEFECTS OF THE INSULATION SYSTEM USING THE EMISSION ACOUSTIC METHOD
... time- frequency analysis results using a short-time Fourier transform ...the analysis of the per cent effectiveness shown below, it results that STFT time-frequency parameterization of the AE ...
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PROSPECT THEORY: AN ANALYSIS OF DECISION UNDER RISK BY DANIEL KAHNEMAN AND AMOS TVERSKY'
... This analysis restricts risk seeking in the domain of gains and risk aversion in the domain of losses to small probabilities, where overweighting is expected to hold... [r] ...
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Domain Reduction Strategy for Stability Analysis of a NACA0012 airfoil
... reduced domain, the Jacobian has been extracted using TAU-DLR code from the base flow, and the stability analysis has been then ...stability analysis on the reference ...
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Bandlimited Airy Pulses for Invariant Propagation in Single-Mode Fibers
... It can be observed that in both fig- ures, the time-frequency distribution remains undistorted, but there is a frequency shift AOJ(Z) of the whole distribution. In time domain, the e[r] ...
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Ultra long range Brillouin Optical Time Domain Analysis
... In this case, as it arose with the results obtained in 4.3.2, the minimum gain of the 100 km measurement was located in the 75 km approximately. Thus to validate the performance of our high-resolution long range BOTDA as ...
130
TítuloClassification of signals by means of genetic programming
... In addition to time–frequency features, many different types of signal analyses have been performed over the signals, in order to extract features for characterize the signal. One of the most powerful tools for ...
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High frequency asymptotic analysis of a string with rapidly oscillating density
... The rest of the paper is organized as follows: in Section 2 we state the main approxi- mation result for the eigenvalues and eigenfunctions. In Sections 3 and 4 we discuss the consequences for the eigenvalues and ...
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Genome wide analysis of the SET DOMAIN GROUP family in Grapevine
... SET DOMAIN GROUP (SDG) proteins represent an evolutionarily-conserved family of epigenetic regulators present in eukaryotes and are putative candidates for the catalysis of lysine methylation in ...This ...
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Brillouin optical time domain analysis assisted by second order Raman amplification
... Abstract: We propose and experimentally demonstrate a new method to extend the range of Brillouin optical time domain analysis (BOTDA) systems. It exploits the virtual transparency created by second-order ...
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LOW FREQUENCY ASYMPTOTIC ANALYSIS OF A STRING WITH RAPIDLY OSCILLATING DENSITY ∗
... (b) In Theorem 3.1 we have assumed that the periodicity of the density ρ is 1. This is not essential in our analysis. In fact, if ρ is of period T then, setting ρ(y) = ˆ ρ(T y) and ˆ = T, the problem is reduced to ...
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Ultrasonic material characterization by time-frequency analysis of backscattering noise
... power spectral density equal to DFF ( ω , z 0 ) . If we could measure directly r c ( ) t , z , the natural way for estimating DFF ( ω , z 0 ) , would be to average estimates obtained by (local) spectral analysis ...
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Coherence and polarization in stationary random electromagnetic fields
... (32) i.e., the field at the examined frequency is completely coherent. It is worth of mentioning that this result is a non-trivial one and it follows from the definition of the degree of spectral coherence, Eq. ...
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TítuloNew methodological contributions in time series clustering
... The clustering procedure 2.2 test of equality of the frequencies where the spectral maxima are reached (Timmer et al., 1999). Based on the pairwise p -values matrix and following the clustering technique pro- posed by ...
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