Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 23 for “"Cross Correlation Analysis"”.
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Delineating contributing areas for karst springs using NEXRAD data and cross-correlation analysis
The use of cross-correlation analysis on spring discharge and precipitation data in karst aquifer basins has been used for many years to develop a conceptual understanding of an aquifer and estimate aquifer properties. However, to this point, the application of these processes has relied on gaged …
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Use of Cross-Correlation Analysis to Determine Heart Rate Kinetics During Non-Steady State, Fatiguing Exercise in Collegiate Female Soccer Athletes
… quasi-binary, and dynamic exercise using cross-correlation analysis of HR and external work rate. Heart rate and running speed were cross-correlated yielding a cross-correlation function (CCF) and analyzed for its peak (CCFmax) and time delay (CCFlag). Modeled exercise data where the time …
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Time -Resolved Visualization and Analysis of Compressible Blunt -Base Cylinder Wakes
… these wakes is also performed. Both conventional cross-correlation analysis and cross-correlation analysis conditioned on the coherent structures are performed to measure the convection velocity of the coherent structures. The coherent structures in the developing shear layers in side-view images …
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Global and Local Models for Dilution Factors: Theory and Stimulated Emission Pumping Experiments
… from the second electronic state. An extended cross correlation analysis was applied to obtain more accurate measurements of dilution factors. Simulated SEP spectra were constructed according to two theoretical models: a globally random Golden Rule model and a locally random analytical model. …
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Large Eddy Simulation Of Surface Pressure Fluctuations Generated By Elevated Gusts
… from the pressure measurements on the ground, cross-correlation analysis between the time evolution of the frequency structures corresponding to elevated wind gusts and the pressure on the ground below were investigated. The data for these analysis was generated using a large eddy simulation. …
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Correlated long-distance dynamics modulate monoclonal antibody binding resistance in flaviviral envelope pretein domain-3: A molecular dynamics simulations study
… binding at the interface and therefore also the correlation in motions with the interior of the protein. I investigated this hypothesis by analyzing the dynamics of wild type and mutant ED3s of DEN2 and WNV using molecular dynamics (MD) simulations and principal components analysis (PCA). I found …
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Wind power statistics in Britain, and their consequences for the integration of wind generation into electricity grids
… statistical work is based on the use of spectral analysis, and cross correlation analysis of wind power time series estimated from Meteorological Office records of hourly mean wind speeds at 30 UK recording sites over a period of 9 years. Estimates of wind power capacity credit and wind operating …
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Characterizing manufacturing activity in the United States of America : composite index of leading indicators
… US manufacturing activity utilizing public data. Analysis of the state of the art in manufacturing metrics showed that our approach is unique since exploits a niche that is not covered by any existent report or indicator. A Composite Index of Leading Indicators (MCI) was created for the domestic …
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Evaluating a Potential Area-wide IPM Strategy for Managing Hemlock Woolly Adelgid in the Eastern United States
… show that tree health has generally declined across all sites for each year. HWA population index values are highly variable and are more strongly influenced by the occurrence of low winter temperatures than by treatment effect. Cross-correlation analysis of tree health and HWA population, …
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Characterization of tropospheric scintillations on Earth-space paths in the Ku and Ka frequency bands using the results from the Virginia Tech OLYMPUS experiment
… index inhomogeneities in the troposphere. Analysis of the scintillation results from the VA Tech OLYMPUS experiment for both short term and long term studies is presented. The results include spectral characteristics, frequency scaling and statistics of the scintillation intensity, …
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A system for video-based analysis of face motion during speech
… of face motion is a prerequisite for any further analysis of its functional characteristics or information content. It is possible to make precise measures of locations on the face using systems that track the motion by means of active or passive markers placed directly on the face. Such systems, …
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Damage Detection Methodologies For Structural Health Monitoring of Thin-Walled Pressure Vessels
… (SHM) systems 3) Explore different types of data analysis methodologies to detect damage with particular emphasis on statistical analysis, cross-correlation analysis and Auto Regressive model with eXogeneous input (ARX) models 4) Compare differences in various types of pressure vessels First an …
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The relationship between the x-ray and optical variability in Seyfert Galaxies
… variability power on long time-scales.<br/><br/>Cross-correlation analysis reveal a statistically significant correlation between the X-ray and optical emission of all the galaxies under investigation, with the optical variations following the X-rays by 1–2 days. This time-scale is consistent …
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Exploring the combined use of electrical and hemodynamic brain activity to investigate brain function
… sample, reducing clinical potential. Different analysis methods were used to explore both EEG and NIRS, and their coupling in an eyes open eyes closed paradigm in healthy participants. It could be reproduced that during eyes closed blocks less HbO2 (p = 0.000), more Hbb (p = 0.008), and more …
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Determining the Sustainability of Coal Mine Cavity Discharge as a Drinking Water Source
… the spring hydrograph. A spring recession analysis was performed upon five storm recessions, and the coefficients for each recession compared and discussed in light of known geologic information. It was discovered that the recession coefficients described the flow from the mine very …
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Social and Climatic Factors Contributing to the Persistence of Malaria in The Chittagong Hills Tracts of Bangladesh
… data and meteorological data, significant correlations between rainfall, temperature, and malaria incidence were identified, with temperature and rainfall spikes preceding increases in cases. Despite limitations such as retrospective data collection inaccuracies and omitted determinants, …
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Near-Field Hydrodynamics of Optically Trapped Colloids in Simple and Complex Fluids
… and its modulation by nearby boundaries. A rapid cross-correlation analysis of particle trajectories reveals a time-independent delay in the influence of one particle’s motion on the other, mediated by the solvent between them. Close to a solid wall, I observe a surprising reduction in the …
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Team Interaction Dynamics During Collaborative Problem Solving
… frame-differencing, an automated video analysis technique, was used to capture the bodily movements of participants and content coding was applied to the teams' communications to characterize their CPS processes. A combination of linear (i.e., multiple regression, t-test, and time-lagged …
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Spot evolution on the red giant star XX Triangulum
… than the Sun is determined. From our spot-decay analysis we determine an average linear decay rate of D = -0.067±0.006 Gm^2/day. From this decay rate, we infer a turbulent diffusivity of η_τ = (6.3±0.5) x 10^14 cm^2/s and consequently predict an activity cycle of 26±6 years. The obtained cycle …
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The manager as a system's controller: an application of management systems engineering concepts
… and statistically demonstrated through spectral cross-correlation analysis. So, another significant contribution is revitalizing the formal application of control theory to the study of management situations.
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