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Dissertations / Theses on the topic 'Seismic waves'

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1

Gallop, Jeremy B. "Asymptotic descriptions of seismic waves." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0031/NQ46838.pdf.

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2

Johnson, Stuart G. "Applications of global seismic tomography and analysis of variational methods for the solution of the linearly attenuating frequency domain wave equation /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1997. http://wwwlib.umi.com/cr/ucsd/fullcit?p9823696.

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3

Carter, Andrew James. "Seismic waves from surface seismic reflection surveys : an exploration tool?" Thesis, University of Leeds, 2003. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.633653.

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4

Qian, Zhongping. "Analysis of seismic anisotropy in 3D multi-component seismic data." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/3515.

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The importance of seismic anisotropy has been recognized by the oil industry since its first observation in hydrocarbon reservoirs in 1986, and the application of seismic anisotropy to solve geophysical problems has been keenly pursued since then. However, a lot of problems remain, which have limited the applications of the technology. Nowadays, more and more 3D multi-component seismic data with wide-azimuth are becoming available. These have provided more opportunities for the study of seismic anisotropy. My thesis has focused on the study of using seismic anisotropy in 3D multi-component sei
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5

Demere, Judith Arlene. "Attenuation of seismic waves in Alabama." Thesis, Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/25957.

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6

Coates, Richard T. "On the scattering of seismic waves." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335705.

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7

Zhang, Yaohui. "Common conversion point stacking for P-SV converted waves /." Access abstract and link to full text, 1992. http://0-wwwlib.umi.com.library.utulsa.edu/dissertations/fullcit/9218599.

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8

MacLean, Douglas J. "Mobile source development for seismic-sonar based landmine detection." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Jun%5FMacLean.pdf.

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9

Sen, Vikramaditya. "A seismic survey in antarctica, parallel schemes for seismic migration and target oriented velocity analysis /." Digital version accessible at:, 1998. http://wwwlib.umi.com/cr/utexas/main.

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10

Cabrera, Gomez Jose Julian. "Velocity-dip analysis in the plane-wave domain." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/30604.

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Plane-wave decomposition and slant stack transformation have recently gained much interest as viable routes to perform a variety of prestack processing tasks, such as velocity estimation, migration, filtering, deconvolution, and velocity inversion. To further complement the current advances, the problem of earth model parameter estimation and prestack structural imaging are addressed in this work. Unlike existing methods, the algorithms presented here make a novel and systematic use of the plane-wave domain to determine migration and interval velocities, interface dip angles and common-shot ga
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11

Hebeler, Gregory L. "Site characterization in Shelby County, Tennessee using advanced surface wave methods." Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/20996.

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12

Tie, An. "On scattering of seismic waves by a spherical obstacle." Diss., Georgia Institute of Technology, 1987. http://hdl.handle.net/1853/27988.

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13

Schlottmann, Robert Brian. "A path integral formulation of elastic wave propagation /." Full text (PDF) from UMI/Dissertation Abstracts International, 2000. http://wwwlib.umi.com/cr/utexas/fullcit?p3004372.

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14

Leipski, Elizabeth A. "Analytical investigation of In Situ Seismic methods." Thesis, Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/19002.

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15

Nautiyal, Atul. "Aspects of spatial wavelets and their application to modelling seismic reflection data." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/26504.

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The propagation of seismic waves may be described in the space-frequency domain by the Rayleigh-Sommerfeld convolution integral. The kernel of this integral is called a spatial wavelet and it embodies the physics and geometry of the propagation problem. The concepts of spatial convolution and spatial wavelet are simple and are similar to other topics studied by geophysicists. With a view to understanding these concepts, some aspects of spatial wavelets and their application to two-dimensional, zero-offset, acoustic seismic modelling were investigated. In studying the spatial wavelet, two topi
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16

Whitmore, Norman Daniel. "An imaging hierarchy for common-angle plane wave seismograms /." Access abstract and link to full text, 1995. http://0-wwwlib.umi.com.library.utulsa.edu/dissertations/fullcit/9605996.

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17

Craig, Mitchell Scott. "A discreet-scatterer model of the seismic P coda." Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/25858.

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18

Jiao, Junru. "Residual migration velocity analysis in the plane wave domain : theory and applications /." Access restricted to users with UT Austin EID Full text (PDF) from UMI/Dissertation Abstracts International, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3023551.

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19

Zeighami, Farhad. "Sub-wavelength resonators as seismic Rayleigh waves shield." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

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We explore the thesis that tall structures can be protected by means of seismic metamaterials. Seismic metamaterials can be built as some elements are created over soil layer with different shapes, dimensions, patterns and from different materials. Resonances in these elements are acting as locally resonant metamaterials for Rayleigh surface waves in the geophysics context. Analytically we proved that if we put infinite chain of SDOF resonator over the soil layer as an elastic, homogeneous and isotropic material, vertical component of Rayleigh wave, longitudinal resonance of oscillators will c
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20

Ferreira, Ana Margarida Godinho. "Seismic surface waves in the laterally heterogeneous Earth." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.426406.

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21

Richardson, Alan Ph D. Massachusetts Institute of Technology. "Seismic imaging using internal multiples and overturned waves." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/98671.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 199-205).<br>Incorporating overturned waves and multiples in seismic imaging is one of the most plausible means by which imaging results might be improved, particularly in regions of complex subsurface structure such as salt bodies. Existing migration methods, such as Reverse Time Migration, are usually designed to image solely with primaries, and so do not make full use of energy propagatin
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22

Schultz, Craig A. (Craig Alan). "Enhanced backscattering of seismic waves from irregular interfaces." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/57649.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1994.<br>Includes bibliographical references (p. 272-280).<br>by Craig A. Schultz.<br>Ph.D.
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23

Ronda, Afonso Jose. "Railway formation condition assessment using seismic surface waves." Diss., University of Pretoria, 2016. http://hdl.handle.net/2263/66239.

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The demands of railway transport have been changing over the 150 years of existence of this type of transport in South Africa, specifically the performance requirements of the formation to cater for new traffic requirements. As such, it is important to assess the condition of this vital part of a railway track. This dissertation covers a research project conducted on two railway lines in which measurements of ground vibration were conducted in order to perform geophysical analysis and characterise the formation based on the results obtained. Measurements were taken on a 26 ton axle load track
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24

Hwang, Sukyeon. "Acoustic seismic modeling in the slowness-time intercept domain /." Access abstract and link to full text, 1993. http://0-wwwlib.umi.com.library.utulsa.edu/dissertations/fullcit/9318174.

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25

Galybin, Konstantin A. "P-wave velocity model for the southwest of the Yilgarn Craton, Western Australia and its relation to the local geology and seismicity /." Connect to this title, 2006. http://theses.library.uwa.edu.au/adt-WU2007.0167.

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26

Malladi, Subrahmanya Sastry Venkata. "Modeling and Algorithm Performance For Seismic Surface Wave Velocity Estimation." University of Akron / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=akron1194630399.

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27

Brajanovski, Miroslav. "Effects of fractures on seismic waves in poroelastic formations." Thesis, Curtin University, 2004. http://hdl.handle.net/20.500.11937/2444.

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Naturally fractured reservoirs have attracted an increased interest of exploration and production geophysics in recent years. In many instances, natural fractures control the permeability of the reservoir, and hence the ability to find and characterize fractured areas of the reservoir represents a major challenge for seismic investigations. In fractured and porous reservoirs the fluid affects elastic anisotropy of the rock and also causes significant frequency dependent attenuation and dispersion. In this study we develop a mathematical model for seismic wave attenuation and dispersion in a po
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28

Drosos, Vasileios A. "Synthesis of earthquake ground motions for the new madrid seismic zone." Thesis, Available online, Georgia Institute of Technology, 2004:, 2003. http://etd.gatech.edu/theses/available/etd-04052004-180020/unrestricted/drosos%5Fvasileios%5Fa%5F200312%5Fms.pdf.

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29

Liow, J. (Jeih-San). "A two dimensional finite-difference simulation of seismic wave propagation in elastic media." Diss., Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/25781.

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30

Tsang, Kwok-mei. "Relationship between P-wave velocity & SPT N values and application to assessment of excavatability of terrain." Click to view the E-thesis via HKUTO, 2004. http://sunzi.lib.hku.hk/hkuto/record/B43895645.

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31

Boadu, Fred Kofi. "Fractal characterization of fractures : effect of fractures on seismic wave velocity and attenuation." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/27272.

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32

Chen, Xiuqi. "On the characteristics of coda scatterers for shallow earthquakes." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/28011.

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33

Lam, Wan, and 林蘊. "Correlation of P-wave velocity and weathered." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B42577627.

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34

Ecoublet, Philippe. "Bent-ray travel-time tomography and migration without ray tracing." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263006.

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35

Day, Elizabeth Anne. "Array studies of short period P-wave reflections from boundaries within the deep Earth." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610226.

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36

Lam, Wan. "Correlation of P-wave velocity and weathered." Click to view the E-thesis via HKUTO, 2004. http://sunzi.lib.hku.hk/hkuto/record/B42577627.

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37

Norville, Pelham D. "Time-Reversal Techniques in Seismic Detection of Buried Objects." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14475.

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An investigation is presented of the behavior of time-reversal focusing in soils. Initial numerical models demonstrate time-reversal focusing to be effective in elastic media, including when a large number of scattering objects were present in the medium. When scattering objects are present, time-reversal focusing demonstrates superior focusing ability when compared to other excitation methods such as uniform excitation or time-delay focusing. Multiple experimental investigations of experimental time-reversal focusing performed in sand evaluate time-reversal focusing effectiveness when mult
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38

Helfrich, L. Cody. "Estimating oceanic internal wave energy from seismic reflector slope spectra." Laramie, Wyo. : University of Wyoming, 2008. http://proquest.umi.com/pqdweb?did=1594476671&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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39

Collier, Lindsey Ann. "The interaction of gas-charged magma and seismic waves." Thesis, University of Leeds, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414152.

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40

Brajanovski, Miroslav. "Effects of fractures on seismic waves in poroelastic formations." Curtin University of Technology, Department of Exploration Geophysics, 2004. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=15309.

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Naturally fractured reservoirs have attracted an increased interest of exploration and production geophysics in recent years. In many instances, natural fractures control the permeability of the reservoir, and hence the ability to find and characterize fractured areas of the reservoir represents a major challenge for seismic investigations. In fractured and porous reservoirs the fluid affects elastic anisotropy of the rock and also causes significant frequency dependent attenuation and dispersion. In this study we develop a mathematical model for seismic wave attenuation and dispersion in a po
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41

Mitsakis, Dimitrios Michael. "Seismic migration by Chebychev transform : a novel approach." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/26498.

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Chebychev semi-discretizations for both ordinary and partial differential equations are explored. The Helmholtz, heat, Schrӧdinger and 15° migration equations are investigated. The Galerkin, pseudospectral and tau projection operators are employed, while the Crank-Nicolson scheme is used for the integration of the time (depth) dependence. The performance of the Chebychev scheme is contrasted with the performance of the finite difference scheme for Dirichlet and Neumann boundary conditions. Comparisons between all finite difference, Fourier and Chebychev migration algorithms are drawn as wel
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42

Rosenblad, Brent Lyndon. "Experimental and theoretical studies in support of implementing the spectral-analysis-of-surface-wave (SASW) method offshore /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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43

Wu, Jiedi. "New Constraints on Fault-Zone Structure from Seismic Guided Waves." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/28873.

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The structure of fault zones (FZs) plays an important role in understanding fault mechanics, earthquake rupture and seismic hazards. Fault zone seismic guided waves (GW) carry important information about internal structure of the low-velocity fault damage zone. Numerical modeling of observed FZGWs has been used to construct models of FZ structure. However, the depth extent of the waveguide and the uniqueness of deep structure in the models have been debated. Elastic finite-difference synthetic seismograms were generated for FZ models that include an increase in seismic velocity with depth both
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44

Pirogova, Anastasia S. "Estimation of frequency-dependent attenuation of seismic waves using waform inversion of borehole seismic data." Thesis, Curtin University, 2019. http://hdl.handle.net/20.500.11937/84775.

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45

Ward, Gavin Stuart. "Deep reflection seismics using S-waves on land." Thesis, University of Cambridge, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387057.

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46

Symons, Neill. "Seismic velocity structure of the Puget Sound Region from 3-D non-linear tomography /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/6813.

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47

Soukup, Darin J. "A coupled local mode approach to laterally heterogeneous anisotropic media, volume scattering, and T-wave excitation /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/6847.

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48

Carpi, Isotta. "Seismic Metamaterials for Rayleigh waves attenuation: analytical and numerical survey on the effect of soil stratification." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

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Locally resonant materials and periodic media have been recently proposed as a mean to control and redirect elastic waves at different length scale. In particular, at geophysical scale, large resonant/periodic structures have been used as an innovative solution to attenuate the propagation of seismic waves. Previous studies have shown the possibility of attenuating surface ground motions by deflecting seismic Rayleigh waves into soil bulk. This surface to bulk wave conversion has been proved in the case of homogenous soil. Here we investigate how the surface to bulk wave conversion is infl
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49

Alexander, C. Shafe. "High frequency enrichment in the p-wave coda of earthquakes." Thesis, Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/26227.

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50

Reinoso, Eduardo. "Boundary element modelling of scattering topographical structures with applications to the Mexico City valley." Thesis, University of Portsmouth, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261247.

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