Spectral analysis

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Uncertainty analysis of ANN based spectral analysis using Monte Carlo method

Uncertainty analysis of ANN based spectral analysis using Monte Carlo method

... The use of nonlinear electronic components connected to the electricity grid it is becoming more common in our daily life. These components add harmonic and inter- harmonic content to the electric signal, which results ...

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Support Vector Robust Algorithms for Non-parametric Spectral Analysis

Support Vector Robust Algorithms for Non-parametric Spectral Analysis

... Abstract. A new approach to the non-parametric spectral estimation on the basis of the Support Vector (SV) framework is presented. Two algorithms are derived for both uniform and non-uniform sampling. The ...

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EXTRACTION OF MODAL PARAMETERS OF RISERS IN DEEP WATER OFFSHORE PLATFORMS UTILIZING THE FOURIER SPECTRAL ANALYSIS AND THE FREQUENCY DOMAIN DECOMPOSITION METHODS

EXTRACTION OF MODAL PARAMETERS OF RISERS IN DEEP WATER OFFSHORE PLATFORMS UTILIZING THE FOURIER SPECTRAL ANALYSIS AND THE FREQUENCY DOMAIN DECOMPOSITION METHODS

... The present paper shows a procedure for the identification of modal parameters, such as periods and mode shapes of a SCR, based solely on output data. A mathematical model of a riser was developed considering different ...

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Terms of trade cycles in extreme land abundant countries, 1870 2009  Spectral analysis

Terms of trade cycles in extreme land abundant countries, 1870 2009 Spectral analysis

... Turning our attention to the columns for the major peak, and starting once again with Argentina, the major PDS peak appears is associated with a period of 33.6 years with both windows. The corresponding PDS estimated ...

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Spectral analysis of the Lake of Guadalupe through satellite imagery and in situ data

Spectral analysis of the Lake of Guadalupe through satellite imagery and in situ data

... Abstract. Lake of Guadalupe is a reservoir located in the neighborhood of Mexico City, and it is one of the few re- licts still remaining in the basin of Mexico. This reservoir receives an important volume of waste ...

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TítuloSpectral Heart Rate Variability analysis using the heart timing signal for the screening of the Sleep Apnea–Hypopnea Syndrome

TítuloSpectral Heart Rate Variability analysis using the heart timing signal for the screening of the Sleep Apnea–Hypopnea Syndrome

... Classical spectral analysis meth- ods of the HRV, actually, implicitly assume the existence of such a modulating signal whose spectral properties are usually estimated through the use of subrogate ...

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Discrimination of the Background Media of Concrete Using Electromagnetic Impact Driving Method

Discrimination of the Background Media of Concrete Using Electromagnetic Impact Driving Method

... ABSTRACT: The discrimination of the background media of concrete by spectral analysis of multi-reflected elastic waves brought forth by electromagnetic impact driving method was studied. In order to receive ...

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The high redshift (z > 3) active galactic nucleus population in the 4 Ms Chandra Deep Field South

The high redshift (z > 3) active galactic nucleus population in the 4 Ms Chandra Deep Field South

... two spectral parameters have a significant degree of ...the spectral analysis on all the ...this spectral model are reported in Table ...

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A spectral perspective on excess volatility

A spectral perspective on excess volatility

... careful spectral analysis of the correlation structures observed in real and financial returns for a large pool of long-lived US corporations, and find that financial returns are characterized by strong ...

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Spectral-analysis-surface-waves-method in ground characterization

Spectral-analysis-surface-waves-method in ground characterization

... The prediction of train induced vibration levels in structures close to railway tracks before track construction starts is important in order to avoid having to implement costly mitigation measures afterwards. The used ...

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Preparation of renewable bio-polyols from two species of colliguaja for rigid polyurethane foams

Preparation of renewable bio-polyols from two species of colliguaja for rigid polyurethane foams

... NMR analysis, the successful conversion of CIO and CSO into polyols was confirmed qualitatively by FTIR ...FTIR analysis confirmed the formation of polyols, and the results obtained by 1 H and 13 C ...

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Automatic identification of spectral lines

Automatic identification of spectral lines

... Chemical and physical models takes into account the source structure using simu- lations to reproduce stars formation and later, spectral lines. These simulations involve two main steps: i) 3D chemical models and ...

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Chemical Abundances of the Highly Obscured Galactic Globular Clusters 2MASS GC02 and Mercer 5

Chemical Abundances of the Highly Obscured Galactic Globular Clusters 2MASS GC02 and Mercer 5

... the analysis of 650 giants in the different sections of the Galactic ...selected spectral range gives a reasonable number of atomic and molec- ular lines not affected by blending to derive relative ...

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Seismic Hazard and Ground Motion Characterization at the Itoiz Dam (Northern Spain).

Seismic Hazard and Ground Motion Characterization at the Itoiz Dam (Northern Spain).

... The UHS represents the contribution of different seismic actions in the hazard, but not to the ground motion associated to a specific earthquake. In order to characterize more specific ground motions, we pro- pose to ...

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On-line measurement of soil properties without direct spectral response in near infrared spectral range

On-line measurement of soil properties without direct spectral response in near infrared spectral range

... The most used multivariate methods to develop calibration models are based on linear regressions. Mainly, stepwise multiple linear regression (SMLR), principal component regression (PCR), and PLSR (Stenberg et al., 2010) ...

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Bootstrap Feature Selection in Support Vector Machines for Ventricular Fibrillation Detection

Bootstrap Feature Selection in Support Vector Machines for Ventricular Fibrillation Detection

... discriminant analysis have been proposed, such as Fisher discriminant analysis or nonlinear discriminant analysis with kernels [5, 6], which make a discriminant analysis in a reproducing ...

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Exact boundary controllability of two Euler-Bernoulli beams connected by a point mass

Exact boundary controllability of two Euler-Bernoulli beams connected by a point mass

... u(±1, t) = ∂ 2 u(±1, t) = 0, for t > 0. (1.2) System (1.1) can be viewed as the singular limit as → 0 of a system consisting of three flexible beams occupying the intervals (−1, −), (−, ) and (, 1) respectively, the ...

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Modeling, analysis and seismic design of structures using energy dissipators SLB

Modeling, analysis and seismic design of structures using energy dissipators SLB

... The SLB energy dissipators for seismic protection provide 52+52 standard devices that, combined in parallel with one another, result in a very large potential set. The unit cost of these dissipators is very cheap with ...

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Analysis of spectral wave energy transfer methodologies from deep to shallow water

Analysis of spectral wave energy transfer methodologies from deep to shallow water

... the spectral energy balance equation, where the first term represents the change of energy in the cell, the second and third terms represent the net import of energy in x and y respectively, and the term on the ...

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Análisis de las Técnicas de Procesamiento de Señal comúnmente utilizadas para la Detección de Barras Rotas en Motores de Inducción

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 fault detection of induction ...

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