Academic literature on the topic 'Cross spectral coherency analysis'

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Journal articles on the topic "Cross spectral coherency analysis"

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Maraun, D., and J. Kurths. "Cross wavelet analysis: significance testing and pitfalls." Nonlinear Processes in Geophysics 11, no. 4 (2004): 505–14. http://dx.doi.org/10.5194/npg-11-505-2004.

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Abstract. In this paper, we present a detailed evaluation of cross wavelet analysis of bivariate time series. We develop a statistical test for zero wavelet coherency based on Monte Carlo simulations. If at least one of the two processes considered is Gaussian white noise, an approximative formula for the critical value can be utilized. In a second part, typical pitfalls of wavelet cross spectra and wavelet coherency are discussed. The wavelet cross spectrum appears to be not suitable for significance testing the interrelation between two processes. Instead, one should rather apply wavelet coh
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Lainscsek, Claudia, Manuel E. Hernandez, Howard Poizner, and Terrence J. Sejnowski. "Delay Differential Analysis of Electroencephalographic Data." Neural Computation 27, no. 3 (2015): 615–27. http://dx.doi.org/10.1162/neco_a_00656.

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We propose a time-domain approach to detect frequencies, frequency couplings, and phases using nonlinear correlation functions. For frequency analysis, this approach is a multivariate extension of discrete Fourier transform, and for higher-order spectra, it is a linear and multivariate alternative to multidimensional fast Fourier transform of multidimensional correlations. This method can be applied to short and sparse time series and can be extended to cross-trial and cross-channel spectra (CTS) for electroencephalography data where multiple short data segments from multiple trials of the sam
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While, James, Andrew Jackson, Dirk Smit, and Ed Biegert. "Spectral analysis of gravity gradiometry profiles." GEOPHYSICS 71, no. 1 (2006): J11—J22. http://dx.doi.org/10.1190/1.2169848.

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The gravity gradient tensor (whose components are the second derivatives of the gravitational potential) is a symmetric tensor that, ignoring the constraint imposed by Laplace's equation, contains only six independent components. When measured on a horizontal plane, these components generate, in the spectral domain, six power spectral densities (PSDs) and fifteen cross-spectra. The cross-spectra can be split into two groups: a real group and a pure imaginary group. If the source distribution is statistically stationary, 1D spectra can be found from the 2D spectra via the slice theorem. The PSD
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Kleeman, Richard. "Spectral Analysis of Multidimensional Stochastic Geophysical Models with an Application to Decadal ENSO Variability." Journal of the Atmospheric Sciences 68, no. 1 (2011): 13–25. http://dx.doi.org/10.1175/2010jas3546.1.

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Abstract Simple linear models with additive stochastic forcing have been rather successful in explaining the observed spectrum of important climate variables. Motivated by this, the authors analyze the spectral character of such a general stochastic system of finite dimension. The spectral matrix is derived in the case that the spectrum is a linear combination of dynamical variables and their stochastic forcings. It is found that the most convenient basis for analysis is provided by the normal modes. In general the spectrum consists of two pieces. The first “diagonal” piece is a symmetric Lore
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Nuzhdina, M. A. "Connection between ENSO phenomena and solar and geomagnetic activity." Natural Hazards and Earth System Sciences 2, no. 1/2 (2002): 83–89. http://dx.doi.org/10.5194/nhess-2-83-2002.

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Abstract. Connections between El Niño – Southern Oscillation (ENSO) phenomena and indices of solar activity and geomagnetic disturbance were investigated. Spectral analysis of the ENSO-data was carried out. Oscillations with periods of about 11–12, 5–6, 2–3 years were found. Correlative and cross-spectral analysis was carried out to estimate connections between ENSO data, and solar and geomagnetic indices. Functions of coherency and phase were calculated.
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Chen, Zhongbiao, Biao Zhang, Vladimir Kudryavtsev, Yijun He, and Xiaoqing Chu. "Estimation of Sea Surface Current from X-Band Marine Radar Images by Cross-Spectrum Analysis." Remote Sensing 11, no. 9 (2019): 1031. http://dx.doi.org/10.3390/rs11091031.

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The cross-spectral correlation approach has been used to estimate the wave spectrum from optical and radar images. This work aims to improve the cross-spectral approach to derive current velocity from the X-band marine radar image sequence, and evaluate the application conditions of the method. To reduce the dependency of gray levels on range and azimuth, radar images are preprocessed by the contrast-limited adaptive histogram equalization. Two-dimensional cross-spectral coherence and phase are derived from neighboring X-band marine radar images, and the phases with large coherences are used t
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Privalsky, V. "On studying relations between time series in climatology." Earth System Dynamics 6, no. 1 (2015): 389–97. http://dx.doi.org/10.5194/esd-6-389-2015.

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Abstract. Relationships between time series are often studied on the basis of cross-correlation coefficients and regression equations. This approach is generally incorrect for time series, irrespective of the cross-correlation coefficient value, because relations between time series are frequency-dependent. Multivariate time series should be analyzed in both time and frequency domains, including fitting a parametric (preferably, autoregressive) stochastic difference equation to the time series and then calculating functions of frequency such as spectra and coherent spectra, coherences, and fre
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Chronis, Themis G., Earle Williams, and Emmanouil N. Anagnostou. "Evidence of Tropical Forcing of the 6.5-Day Wave from Lightning Observations over Africa." Journal of the Atmospheric Sciences 64, no. 10 (2007): 3717–21. http://dx.doi.org/10.1175/jas4021.1.

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Abstract A study employing observations and climatic reanalysis data is concerned with links between convection and the well-documented 6.5-day stratospheric global wave. Observations from a long-range lightning detection network, known as ZEUS, reveal an in-phase behavior between the maximization of daily lightning activity over Africa and the intensification of the wave. To extend the observations on a climatological basis, the authors make use of the outgoing longwave radiation (OLR) as proxy for convection and the surface level pressure (SLP) as an indicator of atmospheric column forcing.
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Kriss, A. B., P. A. Paul, and L. V. Madden. "Variability in Fusarium Head Blight Epidemics in Relation to Global Climate Fluctuations as Represented by the El Niño-Southern Oscillation and Other Atmospheric Patterns." Phytopathology® 102, no. 1 (2012): 55–64. http://dx.doi.org/10.1094/phyto-04-11-0125.

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Cross-spectral analysis was used to characterize the relationship between climate variability, represented by atmospheric patterns, and annual fluctuations of Fusarium head blight (FHB) disease intensity in wheat. Time series investigated were the Oceanic Niño Index (ONI), which is a measure of the El Niño-Southern Oscillation (ENSO), the Pacific-North American (PNA) pattern and the North Atlantic Oscillation (NAO), which are known to have strong influences on the Northern Hemisphere climate, and FHB disease intensity observations in Ohio from 1965 to 2010 and in Indiana from 1973 to 2008. For
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Zohar, Sioan, and Chun Hong Yoon. "Bi-cross validation of spectral clustering hyperparameters." Powder Diffraction 35, no. 2 (2020): 112–16. http://dx.doi.org/10.1017/s0885715620000214.

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One challenge impeding the analysis of terabyte scale X-ray scattering data from the Linac Coherent Light Source (LCLS) is determining the number of clusters required for the execution of traditional clustering algorithms. Here, we demonstrate that the previous work using bi-cross validation to determine the number of singular vectors directly maps to the spectral clustering problem of estimating both the number of clusters and hyperparameter values. Applying this method to LCLS X-ray scattering data enables the identification of dropped shots without manually setting boundaries on detector fl
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Dissertations / Theses on the topic "Cross spectral coherency analysis"

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Vowels, Matthew James. "THE APPLICATION OF SPECTRAL AND CROSS-SPECTRAL ANALYSIS TO SOCIAL SCIENCES DATA." UKnowledge, 2018. https://uknowledge.uky.edu/hes_etds/58.

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The primary goal of this paper is to demonstrate the application of a relatively esoteric and interdisciplinary technique, called spectral analysis, to dyadic social sciences data. Spectral analysis is an analytical and statistical technique, commonly used in engineering, that allows times series data to be analyzed for the presence of significant regular/periodic fluctuations/oscillations. These periodic fluctuations are reflected in the frequency domain as amplitude or energy peaks at certain frequencies. Furthermore, a Magnitude Squared Coherence analysis may be used to interrogate more tha
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Potočňák, Tomáš. "Klasifikace srdečních cyklů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-219953.

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The aim of this work was to develop the method for classification of ECG beats into two classes, namely ischemic and non-ischemic beats. Heart beats (P-QRS-T cycles) selected from animals orthogonal ECGs were preprocessed and used as the input signals. Spectral features vectors (values of cross spectral coherency), principal component and HRV parameters were derived from the beats. The beats were classified using feedforward multilayer neural network designed in Matlab. Classification performance reached the value approx. from 87,2 to 100%. Presented results can be suitable in future studies a
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Kanaan, Mona N. "Cross-spectral analysis for spatial point-lattice processes." Thesis, [n.p.], 2000. http://dart.open.ac.uk/abstracts/page.php?thesisid=94.

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Kamboj, Sunita. "The cross-section for photoelectric-equivalent interactions in germanium for gamma-ray spectral analysis." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/16633.

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Spalt, Taylor Brooke. "Constrained Spectral Conditioning for the Spatial Mapping of Sound." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/70868.

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In aeroacoustic experiments of aircraft models and/or components, arrays of microphones are utilized to spatially isolate distinct sources and mitigate interfering noise which contaminates single-microphone measurements. Array measurements are still biased by interfering noise which is coherent over the spatial array aperture. When interfering noise is accounted for, existing algorithms which aim to both spatially isolate distinct sources and determine their individual levels as measured by the array are complex and require assumptions about the nature of the sound field. This work develo
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Jaimes, Rafael. "Spatiotemporal Organization of Atrial Fibrillation Using Cross-Bicoherence with Surrogate Data." Digital WPI, 2011. https://digitalcommons.wpi.edu/etd-theses/828.

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Atrial fibrillation (AF) is a troublesome disease often overlooked by more serious myocardial infarctions. Up until now, there has been very little or no use of high order spectral techniques in order to evaluate the organization of the atrium during AF. Cross-bicoherence algorithm can be used alongside a surrogate data threshold in order to determine significant phase coupling interactions, giving rise to an organizational metric. This proposed algorithm is used to show rotigaptide, a gap junction coupling drug, significantly increases the organization of the atria during episodes of AF due t
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Yeung, Wai. "Sleep, pain and daytime functioning in patients with fibromyalgia syndrome and osteoarthritis : a cross-sectional comparative study." Thesis, Loughborough University, 2016. https://dspace.lboro.ac.uk/2134/21798.

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Fibromyalgia syndrome (FMS) is a disorder characterised by chronic widespread pain, non-restorative sleep, fatigue and daytime dysfunction. Occurring in 2-5% of the population, the aetiology is largely unknown. Sleep dysfunction occurs in over 90% of FMS patients. While research has shown that both the macrostructure and microstructure of sleep may be altered, there remain inconsistencies in the polysomnographic (PSG) findings, and wide variations in methodological approaches. Few studies have controlled for symptom duration or the time elapsed between diagnosis and PSG sleep assessments. In a
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Gavrilovic, Milan. "Spectral Image Processing with Applications in Biotechnology and Pathology." Doctoral thesis, Uppsala universitet, Centrum för bildanalys, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-160574.

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Color theory was first formalized in the seventeenth century by Isaac Newton just a couple of decades after the first microscope was built. But it was not until the twentieth century that technological advances led to the integration of color theory, optical spectroscopy and light microscopy through spectral image processing. However, while the focus of image processing often concerns modeling of how images are perceived by humans, the goal of image processing in natural sciences and medicine is the objective analysis. This thesis is focused on color theory that promotes quantitative analysis
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Kriss, Alissa Brynn. "The Role of Environmental, Temporal, and Spatial Scale on the Heterogeneity of Fusarium Head Blight of Wheat." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1320932280.

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Milan, Juliana Cristina. "Estudo da sensibilidade barorreflexa e sua relação com a produção de citocinas inflamatórias no processo de envelhecimento." Universidade Federal de São Carlos, 2014. https://repositorio.ufscar.br/handle/ufscar/7037.

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Made available in DSpace on 2016-08-17T18:39:51Z (GMT). No. of bitstreams: 1 6222.pdf: 2879821 bytes, checksum: 010a3c6abf3b0c6f2ec81ebf9ff59ef0 (MD5) Previous issue date: 2014-08-21<br>Universidade Federal de Sao Carlos<br>Aging causes changes in several human subsystems such as the cardiovascular and immune systems. The objective of this study was to evaluate the relationship between baroreflex function through linear algorithm (cross-spectral analysis) and proinflammatory cytokines in the aging process and also assess the baroreflex sensitivity, TNF-&#945;, IL-6 and hsCRP in different age
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Books on the topic "Cross spectral coherency analysis"

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Pakko, Michael R. A spectral analysis of the cross-country consumption correlation puzzle. Federal Reserve Bank of St. Louis, 2003.

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Pittaras, N. Spectral and cross-spectral analysis of unequally spaced time series with applications to astronomical data. UMIST, 1995.

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Buchinsky, Moshe. Leads and lags in commodity prices: An application of cross-spectral analysis. World Bank, 1987.

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Bieler, Heribert. Theoretische Untersuchungen uber primare Instabilitaten in dreidimensionalen Grenzschichtstromungen. DFVLR, 1986.

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King, Wayne M. Multitaper spectral estimation and time-domain cross-correlation in FMRI data analysis: Actual and simulated data. 1999.

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Book chapters on the topic "Cross spectral coherency analysis"

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Zhuang, Yuming, and Degang Chen. "Algorithms for Accurate Spectral Analysis in the Presence of Arbitrary Non-coherency and Large Distortion." In Accurate and Robust Spectral Testing with Relaxed Instrumentation Requirements. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-77718-4_2.

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Bull, Günther. "Sodar investigations of gravity waves by cross spectral analysis." In Acoustic Remote Sensing Applications. Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/bfb0009570.

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Přibil, Jiří, and Anna Přibilová. "Spectral Flatness Analysis for Emotional Speech Synthesis and Transformation." In Cross-Modal Analysis of Speech, Gestures, Gaze and Facial Expressions. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03320-9_11.

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Johnson, Rodney W., and John E. Shore. "Introduction to Minimum-Cross-Entropy Spectral Analysis of Multiple Signals." In Maximum-Entropy and Bayesian Methods in Inverse Problems. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-017-2221-6_3.

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Cury, Claire, Marco Lorenzi, David Cash, et al. "Spatio-Temporal Shape Analysis of Cross-Sectional Data for Detection of Early Changes in Neurodegenerative Disease." In Spectral and Shape Analysis in Medical Imaging. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-51237-2_6.

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Xie, Yumeng, Peilin Zhang, and Yong Wang. "Inland Waterborne Commerce Study Based on Variance Decomposition and Cross-Spectral Analysis." In Advances in Artificial Systems for Logistics Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-80475-6_2.

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Erla, S., C. Papadelis, L. Faes, C. Braun, and G. Nollo. "Studying Brain Visuo-Tactile Integration through Cross-Spectral Analysis of Human MEG Recordings." In XII Mediterranean Conference on Medical and Biological Engineering and Computing 2010. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-13039-7_19.

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Lenk, Ulrich, Kurt Seitz, and Bernhard Heck. "A Datum Defect and Spectral Analysis in Regional Cross-Over Adjustments of Satellite Altimeter Data." In International Association of Geodesy Symposia. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-79721-7_36.

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Hashimoto, Kengo. "Subcriticality." In Accelerator-Driven System at Kyoto University Critical Assembly. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0344-0_2.

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AbstractFor a subcritical reactor system driven by a periodically pulsed spallation neutron source in KUCA, the Feynman-α and the Rossi-α neutron correlation analyses are conducted to determine the prompt neutron decay constant and quantitatively to confirm a non-Poisson character of the neutron source. The decay constant determined from the present Feynman-α analysis well agrees with that from a previous analysis for the same subcritical system driven by an inherent source. Considering the effect of a higher mode excited, the disagreement can be successfully resolved. The power spectral analysis on frequency domain is also carried out. Not only the cross-power but also the auto-power spectral density have a considerable correlated component even at a deeply subcritical state, where no correlated component could be previously observed under a 14 MeV neutron source. The indicator of the non-Poisson character of the present spallation source can be obtained from the spectral analysis and is consistent with that from the Rossi-α analysis. An experimental technique based on an accelerator-beam trip or restart operation is proposed to determine the subcritical reactivity of ADS. Applying the least-squares inverse kinetics method to the data analysis, the subcriticality can be inferred from time-sequence neutron count data after these operations.
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"Minimum Cross Entropy Spectral Analysis." In Entropy Theory and its Application in Environmental and Water Engineering. John Wiley & Sons, Ltd, 2013. http://dx.doi.org/10.1002/9781118428306.ch12.

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Conference papers on the topic "Cross spectral coherency analysis"

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Hall, Andre´ M., Mark N. Glauser, and Charles E. Tinney. "An Experimental Investigation of the Pressure-Velocity Cross-Correlation in an Axisymmetric Jet." In ASME 2005 Fluids Engineering Division Summer Meeting. ASMEDC, 2005. http://dx.doi.org/10.1115/fedsm2005-77338.

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This study investigates the strength of the pressure-velocity correlations of a Mach 0.6, axisymmetric jet, with an exit nozzle diameter of 50.8mm. Experiments are conducted at a constant exit temperature of 25°C, and exit pressure and temperature are balanced with ambient conditions. The instantaneous velocity measurements are acquired using a multi-component LDA system who’s measurement volume is traversed along several radial and streamwise locations within the potential core, and mixing layer regions of the flow. The fluctuating lip pressure is simultaneously sampled by an azimuthal array
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Pessoa, Joa˜o, Nuno Fonseca, Suresh Rajendran, and C. Guedes Soares. "Experimental Investigation of the First and Second Order Wave Exciting Forces on a Restrained Body in Long Crested Irregular Waves." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-50318.

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The paper presents an experimental investigation of the first order and second order wave exciting forces acting on a body of simple geometry subjected to long crested irregular waves. The body is axis-symmetric about the vertical axis, like a vertical cylinder with a rounded bottom, and it is restrained from moving. Second order spectral analysis is applied to obtain the linear spectra, coherence spectra and cross bi-spectra of both the incident wave elevation and of the horizontal and vertical wave exciting forces. Then the linear and quadratic transfer functions (QTF) of the exciting forces
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Chiocchini, S., T. Pagliaroli, R. Camussi, and E. Giacomazzi. "A Mutual Nearest Neighbours Based Chaotic Synchronization Index to Detect Thermo-Acoustic Coupling in Gas Turbine Combustion Instabilities." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-56222.

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The characterization of unstable combustion regimes is often performed in the light of the Rayleigh Criterion, in the frequency domain, employing the Power Spectral Analysis of pressure (p′) and heat-release (q′) fluctuations. Equally often, it is assumed a priori that the thermo-acoustic oscillations are periodic, with a dominant frequency and a fixed amplitude (Period-1Llimit Cycle Oscillations). However one has to consider that: 1) p′ and q′, involved in the Rayleigh instability index, are governed by the Linearized Acoustic Energy Perturbation Balance Equations; 2) in the frequency domain
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Hamakawa, Hiromitsu, Yuji Kouno, and Eiichi Nishida. "Effect of Fins on Vortex Shedding Noise Generated From a Circular Cylinder in Cross Flow." In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-30290.

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In the present paper, the effect of twist-serrated fins around a bare tube on the Aeolian tone was experimentally investigated. These fins were mounted spirally around a bare tube and had the same geometry as those actually used in boiler tubes. We measured the intensity of velocity fluctuation, spectrum of velocity fluctuation, coherence of Karman vortex in the spanwise direction, dynamic lift force, and sound pressure level of the aerodynamic noise generated from finned tubes with various fin pitches. An Aeolian tone induced by Karman vortex shedding was observed in the case of a finned tube
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Merzari, Elia, Paul Fischer, and Justin Walker. "Large-Scale Simulation of Rod Bundles: Coherent Structure Recognition and Stability Analysis." In ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ajkfluids2015-29719.

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The axial flow in rod bundles has been the object of several investigations, since they are relevant for various industrial applications (e.g., heat exchangers, nuclear reactor cores). For tight configurations (pitch-to-diameter ratio smaller than 1.1) the large difference in velocity within the cross section creates the possibility of a Kelvin-Helmholtz instability and the generation of a vortex street in the gap (“gap instability”). While the presence of spacing devices may perturb the flow, simple grid spacers — grids of the type usually encountered in sodium fast reactors — do not prevent
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Hermle, Georg, and Martin Lawerenz. "Unsteady Secondary Flow in an Annular Compressor Cascade." In ASME 2013 Gas Turbine India Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gtindia2013-3560.

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Subject of the experimental investigations presented is the analysis of secondary flow in an annular compressor cascade. Focus lies on the so-called rotating instability. The investigations concentrate on the unsteady pressure field in the area of the blade tip clearance in order to get deeper understanding of the phenomenon of rotating instability. Therefore, transducers were mounted along the leading edges around the circumference of the cascade. This arrangement allows the determination of the coherence and the phasing between the transducers by the cross correlation via Fourier and wavelet
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Pavesi, Giorgio, Guido Ardizzon, and Giovanna Cavazzini. "Unsteady Flow Field and Noise Generation in a Centrifugal Pump Impeller With a Vaneless Diffuser." In ASME 2005 Fluids Engineering Division Summer Meeting. ASMEDC, 2005. http://dx.doi.org/10.1115/fedsm2005-77320.

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To improve understanding of the phenomena of stall in centrifugal pumps, extensive research was conducted to investigate the impact on flow field instabilities and the noise generated in a pump equipped with a diffuser. A pump fitted with a vaneless diffuser and a return channel was used as the test model. Flow velocity was measured at the pump and at diffuser inflow to establish a link between the flow field structure and acoustic radiation. Activity was based upon the cross spectral analysis of output signals from piezoelectric transducers placed flush with the wall at the inflow and outflow
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Jusserand, Franc¸ois, Andre´ Adobes та Tseheno N. Randrianarivelo. "Solving U-RANS k-ω SST Equations and Post-Processing Motion Independent Fluid Forces in a Tube Bundle". У ASME 2009 Pressure Vessels and Piping Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/pvp2009-77691.

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The computation of the dynamic response of a structure subjected to a fluid flow requires the knowledge of the fluid forces acting on the structure. At least three classes of these forces can be distinguished: - fluid-elastic forces due to the coupling between fluid flow and structure displacement; - random forces due to the turbulent nature of the flow. In cases of two-phase fluid configurations, such as those occurring in steam generators of nuclear power plants, forces due to the two-phase nature of the fluid are also assumed to be part of this type of excitations; - fluid forces due to coh
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Stockwell, Robert G., Robert P. Lowe, and L. Mansinha. "Localized cross-spectral analysis with phase-corrected wavelets." In Aerospace/Defense Sensing and Controls, edited by Harold H. Szu. SPIE, 1996. http://dx.doi.org/10.1117/12.236027.

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Jadhav, Pankaj, Debabrata Datta, and Siddhartha Mukhopadhyay. "Signature Matching For Seismic Signal Identification." In International Conference on Women Researchers in Electronics and Computing. AIJR Publisher, 2021. http://dx.doi.org/10.21467/proceedings.114.17.

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Seismic signals can be classified as natural or manmade by matching signature of similar events that have occurred in the past. Waveform matching techniques can be effectively used for discrimination since the events with similar location and focal mechanism have similar waveform irrespective of magnitude. The seismic signals are inherently non-stationary in nature. The analysis of such signals can be best achieved in multiresolution framework by resolving the signal using continuous wavelet transform (CWT) in time-frequency plane. In this paper similarity testing and classification of nuclear
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Reports on the topic "Cross spectral coherency analysis"

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Pakko, Michael R. A Spectral Analysis of the Cross-Country Consumption Correlation Puzzle. Federal Reserve Bank of St. Louis, 2003. http://dx.doi.org/10.20955/wp.2003.023.

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