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.
Results
Showing 1 to 16 of 16 for “"coherence analysis"”.
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Automated seismic event location by waveform coherence analysis
… which is obtained using the principal component analysis technique. The orientation of the horizontal components can be retrieved by robust and linear approach of waveform comparison between stations within a network using seismic sources outside the network (chapter 2). To locate the seismic …
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EMG-EMG Coherence Analysis of Elbow and Shoulder Muscles
… a non-negative matrix factorization: NMF) analysis. In order to evaluate the same muscles under the frequency domain, coherence analysis: a correlational method) was used. Additionally, a comparison can be made to determine if the resulting muscle pairs overlap with the muscle pairs found …
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Human concept cognition and semantic relations in the unified medical language system: A coherence analysis.
… scaling, hierarchical clustering, and content analysis, this study aimed to conduct an exploratory investigation to answer four related questions. Divided into two groups, a total of 89 research participants took part in two sets of cognitive tasks. The first group (49 participants) sorted 60 …
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Structure and evolution of the Australian continent : insights from seismic and mechanical heterogeneity and anisotropy
… seismic surface-wave tomography with an analysis of the anisotropy in the mechanical properties of the lithosphere, inferred from the coherence between gravity anomalies and topography. With a new high-resolution waveform tomographic model of Australia, I demonstrate that the depth of …
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Homogenization and analysis of hydrological time series
… feedback mechanisms typical of this system. The analysis of available time series is hence a fundamental step, which has to be performed before any modeling activity. Moreover, time series analysis can shed light over the spatial and temporal dynamics of correlated hydrological and climatological …
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Simulating the characteristics of droughts in Southern Africa
… are identified using the principal component analysis (PCA) on the SPEI, while the temporal characteristics of the drought patterns are studied using wavelet analysis. The relationship between each drought pattern and global SSTs (and climate indices) is quantified using correlation analysis …
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Ukrainos karo įtakos Europos akcijų rinkoms. Tyrimas bangelių metodu /
… and USA stocks. The method used is wavelet analysis methodology, allowing to reveal trends and changes over time. Different time periods are analyzed in the study to understand the long-term and short-term effects on the markets. Using the EXCEL program, returns of European and USA stock …
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Alpha thalamocortical networks during propofol general anesthesia and disorders of consciousness
… propofol-induced unconsciousness, we conducted coherence analysis of alpha networks in intracranial EEG recorded in patients with pharmacologically-refractory epilepsy and performed probabilistic tractography analysis of thalamocortical fibers in a matched cohort of healthy subjects. We found a …
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Economic performance of product and process firms
… define process firms. A measure of technological coherence is introduced, which expresses the relatedness of capabilities of a firm. The measure is based on a concentration index and a hierarchical classification of products and processes in the automotive supplier industry. Using this measure of …
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Development of a Fourier Domain Low Coherence Interferometry Optical System for Applications in Early Cancer Detection
… of one such technique called Fourier domain low coherence interferometry (fLCI). </p><p>The presented work first describes a detailed analysis of temporal and spatial coherence. The study shows that temporal coherence information in time frequency distributions contains valuable structural …
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Non-growing season CO2 fluxes of a boreal fen – key drivers and responses to anomalous winter conditions
… had an equal relative importance. A wavelet coherence analysis further revealed that the mean annual cycles of NEE and soil temperature were coherent during the summer months across the diurnal scale. For instance, NEE correlated positively (decreasing the net carbon sink) with soil …
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African stock markets: empirics of development, integration, efficiency and investor herd behaviour
… pooled panel OLS regression, wavelet squared coherence analysis, multivariate DCC-GARCH analysis, and the cross-sectional absolute deviation (CSAD) modelling technique. The findings of this study have far-reaching implications: First, we conclude that both domestic (macroeconomic and …
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Blast-Induced Tinnitus: A Combined Behavioral, Memri, And Electrophysiology Study
<p>ABSTRACT</p> <p>BLAST-INDUCED TINNITUS: A COMBINED BEHAVIORAL, MEMRE, AND ELECTROPHYSIOLOGY STUDY</p> <p>by</p> <p>JESSICA OUYANG</p> <p>May 2014 Advisor: Drs. Steve Cala & Jinsheng Zhang</p> <p>Major: Physiology</p> <p>Degree: Doctor of Philosophy</p> <p>Tinnitus and hearing loss are the …
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The Financial Integration and Its Flipside with a Focus on Banking and Stock Markets of Central, Eastern, and Southeastern European Countries
… methodologies such as wavelet technique, cluster analysis, and GARCH models. After the introduction of the thesis and hypotheses, the second chapter explains financial integration and its impacts on Central, Eastern, and Southeastern European economies. In the third chapter of this thesis, cluster …
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Numerical investigation of air vehicle noise propagation effects
… the aforementioned noise investigation and analysis, results on Blade Wake Interaction (BWI) noise were also reached. Presently, the mechanism of BWI noise generation, as well as the corresponding prediction model, are still under consideration. Helicopter rotor BWI noise is known to be …
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Streamflow Generation in alpine Catchments: The role of hydrological and geochemical information
… of alternative data sources and methods for data analysis and visualization. This doctoral thesis aimed to contribute with new insights into the multifaceted aspects of streamflow generation in Alpine river catchments, exploring the different roles played by hydrological and geochemical …