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 187 for “"correlation function"”.
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Time Correlation Function Analysis of Raman Lineshapes
Made available in DSpace on 2014-12-10T23:01:22Z (GMT). No. of bitstreams: 1 7219855.pdf: 3069153 bytes, checksum: 979a5d90c7706c623c70150dcdd78cdc (MD5) Previous issue date: 1972
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Correlation Function Analysis of Infrared Band Shapes of Metal Carbonyls
Made available in DSpace on 2014-12-10T23:00:53Z (GMT). No. of bitstreams: 1 7105162.pdf: 3320477 bytes, checksum: c76f88a4708b31998dba39267193a8f9 (MD5) Previous issue date: 1970
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Theory of two point correlation function in a Vlasov plasma
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1981.
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Analysis of the Correlation Function of a Class of Markov Processes
Made available in DSpace on 2014-12-04T21:03:22Z (GMT). No. of bitstreams: 1 6104341.pdf: 1222763 bytes, checksum: 4b6497144f4dc70853075e8a3d045b06 (MD5) Previous issue date: 1961
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Energy density correlations in the three-dimensional Ising model
The energy-density-energy-density correlation function is studied in the three-dimensional Ising model in zero external field, for various spins on the fcc lattice. An extension of the linked-cluster technique is used to obtain high-temperature series expansions for the correlation function and its …
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The evolution of the large scale structure of the universe since z=1
… The amplitude of the three-dimensional correlation function is estimated by deprojecting two-dimensional correlation functions. The reliability of the deprojection methods of the angular and projected correlation function is tested on the Las Campanas Redshift Survey (LCRS). Both angular …
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Coulomb Interactions in Hanbury Brown -Twiss Experiments With Electrons
The second-order correlation function, i.e., the intensity correlation function, is not the only characterization of the two-particle interference. There are other different yet equivalent characterizations, which we examine in this thesis. We investigate the relationship between different …
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Rotor Inflow Noise Caused by a Boundary Layer: Inflow Measurements and Noise Predictions
… in detail to determine the full four-dimensional correlation function of a boundary layer generated over a smooth wall in the Virginia Tech Stability Wind Tunnel. The correlation function reveals anisotropy in the flow dominated by a large scale correlation structure elongated in the streamwise …
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Hydrogen bonding and solvation dynamics of n-methylacetamide in denatured water (D₂O) or denatured chloroform (CDCl₃) from nonlinear spectroscopy
… iterative fitting approach was used to extract a correlation function from the experimental data. The correlation function for NMA/D₂O was found to be biexponential with decay constants of 1050 fs and [approximately]50 fs. These timescales are interpreted as reflecting the collective rearrangement …
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Mesoscale variability and mean flow interaction near the Gulf Stream as seen by satellite altimetry and numerical modelling
… framework is obtained from the stream function standard deviation and spatial correlation function assuming the correlation function is homogeneous. An analytical expression is found for the stream function correlation using the altimetric and numerical data. Cases when the correlation …
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Mesoscale variability and mean flow interaction near the Gulf Stream as seen by satellite altimetry and numerical modelling
… framework is obtained from the stream function standard deviation and spatial correlation function assuming the correlation function is homogeneous. An analytical expression is found for the stream function correlation using the altimetric and numerical data. Cases when the correlation …
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Optimizing tensor contractions for nuclear correlation functions
Nuclear correlation functions reveal interesting physical properties of atomic nuclei, including ground state energies and scattering potentials. However, calculating their values is computationally intensive due to the fact that the number of terms from quantum chromodynamics in a nuclear wave …
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Modeling large scale structure from photometric surveys
… systematic tests, the galaxy two-point angular correlation function, and the best halo-occupation distribution (HOD) model fit for galaxies and compact galaxy groups selected from the seventh data release of the Sloan Digital Sky Survey. The galaxy sample was selected with r-band apparent …
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Numerical investigation of highly inelastic reactions in a φ3 ladder model
… and two-particle spectra and the two-particle correlation function. Of special significance might be the transverse momentum dependence of the one-particle spectrum and the short range structure in the correlation function in the longitudinal rapidities. The second part of the thesis …
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Microstructure of Systems with Competition
… We demonstrate that at high temperatures, the correlation function of general O(n) systems exhibits a universal form. This form enables the extraction of microscopic interaction potentials from the high temperature correlation functions. In systems with long range interactions, we find that the …
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Polymer Melts Investigated by Field Cycling NMR Relaxometry: From Simple Liquid to Reptation Dynamics
… be easily distinguished; finally, the dipolar correlation function is obtained directly by Fourier transform. In this thesis by employing the above approach, the dipolar correlation function of polybutadienes (PB) melts is presented and comprises - depending on M - glassy, Rouse and …
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Cosmological constraints using 2- and 3-point correlations with meerkat, the ska and other surveys
… are typically analyzed via the 2-point correlation function or power spectrum. However, adding the information from the 3-point correlation function or bispectrum will be crucial to exploiting next-generation intensity mapping experiments. Upcoming surveys by SKAO and HIRAX will …
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Compressive phase retrieval
… phase requires knowledge about the statistical correlations for each pair of points in space. Recovery of the correlation function is a much more challenging problem since the number of pairs grows much more rapidly than the number of points. In this thesis, quantitative phase imaging techniques …
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Monte Carlo analysis of non-equilibrium steady states and relaxation kinetics in driven lattice gases
… long-time behavior of the density-density auto-correlation function in driven lattice gases, with particle exclusion and periodic boundary conditions in one, two, and three dimensions using precise Monte Carlo simulations of larger system sizes than previous studies. In the one-dimensional …
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Resistivity anomalies for ferromagnetic metals at Curie points
… we use the itinerant model to treat the spin correlation function. Using the second quantization techniques of field theory, the correlation function is found. Thence, the scattering cross section is obtained. Based on transport theory, the relaxation time and the resistivity are calculated …
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