Tesi sul tema "Seismic"
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Marks, Samantha Georgina. "Seismic wave attenuation from vertical seismic profiles". Thesis, University of Reading, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384872.
Testo completoVice, President Research Office of the. "Seismic Shift". Office of the Vice President Research, The University of British Columbia, 2006. http://hdl.handle.net/2429/2662.
Testo completoTatelman, Anna. "Seismic Communication". ScholarWorks@UNO, 2019. https://scholarworks.uno.edu/td/2707.
Testo completoAdiya, Munkhsaikhan. "Seismic activity near Ulannbaatar : implication for seismic hazard assessment". Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAH007/document.
Testo completoWe observe since 2005 a high seismic activity at 10 km from Ulaanbaatar that allowed us to identify a new active fault, Emeelt, in the field. After computing a 3D velocity model, I applied Double-Difference tomography to obtain a precise localization of earthquakes. They trace at least three parallel branches oriented N147° like the fault seen at surface. The seismic activity on the Main Emeelt Fault (MEF) is along at least 15 km, on the West and East branches, less active, along 10 km. The depth of the seismicity extends between 4 and 15 km. The activity seems concentrated at the intersection with Mesozoic faults and Vp/Vs contrast suggests the presence of fluids. The 10 swarms identified show an increasing activity and a spatial migration with time. The calculation of 2 possible scenarios, one M ~ 6.4 and one M ~ 7, shows an important impact on Ulaanbaatar, with a minimum intensity of VIII and IX for M=6.4 and X for M=7
Raji, Wasiu. "Seismic and petro-physical studies on seismic wave attenuation". Thesis, University of Liverpool, 2012. http://livrepository.liverpool.ac.uk/7617/.
Testo completoZhang, Qie Sandvol Eric Alan. "Seismic tomography and anisotropy: studies of intraplate seismic zones". Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/6855.
Testo completoQian, Zhongping. "Analysis of seismic anisotropy in 3D multi-component seismic data". Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/3515.
Testo completoYuan, Jianxin. "Analysis of four-component seafloor seismic data for seismic anisotropy". Thesis, University of Edinburgh, 2001. http://hdl.handle.net/1842/11663.
Testo completoNishiyama, Minehiro. "Seismic Response and Seismic Design of Prestressed Concrete Building Structures". Kyoto University, 1993. http://hdl.handle.net/2433/74644.
Testo completoLee, Changhyun. "Seismic Imaging using Image Point Transform for Borehole Seismic data". 京都大学 (Kyoto University), 2008. http://hdl.handle.net/2433/66203.
Testo completo0048
新制・課程博士
博士(工学)
甲第14138号
工博第2972号
新制||工||1441(附属図書館)
26444
UT51-2008-N455
京都大学大学院工学研究科社会基盤工学専攻
(主査)教授 松岡 俊文, 教授 石田 毅, 教授 三ケ田 均
学位規則第4条第1項該当
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.
Testo completoHarrigan, Edward. "Seismic event tracking". Thesis, University of Strathclyde, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267506.
Testo completoLo, Tien-when. "Seismic borehole tomography". Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/54325.
Testo completoArtman, Bradley. "Passive seismic imaging /". May be available electronically:, 2007. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
Testo completoVahdat, Kamran. "Seismic risk management". Thesis, University of Leeds, 2015. http://etheses.whiterose.ac.uk/9180/.
Testo completoRivera, Cruz Ivan. "An evaluation of seismic flat dilatometer and lateral stress seismic piezocone". Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/3890.
Testo completoOlivier, Gerrit. "Seismic imaging and monitoring in mines with ambient seismic noise correlations". Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAU018/document.
Testo completoThis work focus on using passive noise-based seismic methods to image and monitor the rock mass in underground mines. The main results show that it is possible to gain benefit from the diffuse ambient seismic field in mines to 1/ image the rock mass and 2/ monitor its mechanical property changes over time. This work opens a way to improve safety in deep underground mines
Maercklin, Nils. "Seismic structure of the Arava Fault, Dead Sea Transform". Phd thesis, [S.l.] : [s.n.], 2004. http://pub.ub.uni-potsdam.de/2004/0046/marcklin.pdf.
Testo completoGislason, Gardar. "Effect of Petrophysical Parameters on Seismic Waveform Signatures : Review of Theory with Case Study from Frigg Delta Oil Field, Norway". Thesis, Uppsala universitet, Geofysik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-303793.
Testo completoKonventionell AVO-analys har använts under fyra deceniär som ett hjälpmedel för att finna olje- och gasreserver, men tekniken kan även användas för att erhålla information om bergets porositet, vätskemättnaden och andra viktiga petrofysiska parametrar. I denna avhandlingen har jag studerat hur våginducerat vätskeflöde påverkar dämpningen av den seismiska vågformssignaturen. I den första delen av avhandlingen användes två metoder för att syntetisk modellera dämpning orsakad av våginducerat vätskeflöde: "White's modell" och "double-porosity dual-permeability (DPDP) modellen". Både syntetiska parametrar och verkliga parametrar från borrhålsdata från ett känt norskt oljefält användes vid modelleringen. White's modell visade sig modellera relativt kraftig dämpning (5%) för medelstarkt konsoliderade gasreservoarer medan för oljereservoarer med motsvaranda konsolidering dämpningen var så låg (0.3%) att det är uppenbart att i en verklig situation skulle dämpningen inte vara mätbar. DPDP modelleringen verkar vara bättre på att beskriva dämpningen och gav dämpningar upp till 10% för en medelstarkt konsoliderad oljereservoar. Brist på parametrar från borrhålsdata gjorde att det inte var möjligt att på ett tillfredställande sätt modellera en verklig situation.Dock visade syntetisk data intressant karaktäristik och det rekommenderas därför att mer och detaljerade borrhålsparametrar mäts om ytterligare forskning om detta ska genomföras. För den andra delen av avhandlingen har Svenska Petroleum Exploration AB och Det Norske Oljeselskap ASA bidragit med stackad seismisk data som även var spectralanalyserad för indikationer på frekvensberoende dämpningsvariationer (utfört med fouriertransform och komplex spectraldekomposition). Tolv områden på den stackade kuben analyserades; sex oljemättade och sex som antogs vara vattenmättade. I varje område valdes en huvudtracé och de två närmaste tracéerna på vardera sida (totalt fem tracéer). Metoden med komplex spectraldekomposition klarade inte att analysera signalen från den stackade sektionen, varför fouriertransform användes för vidare analys. Frekvensanalysen gav en topp vid ~30 Hz för både olje- och vattenmättade reservoarer vilket tycks vara en karaktäristisk frekvens för källan. Detta kunde tyvärr inte bekräftas och tiden räckte inte till för att testa antagandet. Fouriertransformen tycks visa en viss skillnad mellan olje- och vattenmättade tracéer, men det kan också bero på skillnad i litologin snarare än porvätskan. Där för rekommenderas vid fortsättning på denna forskning att 4D seismisk data används för att analysera samma område men med data från olika tidpunkter. Det rekommenderas även att ostackad eller råa skott-data används eftersom väsentlig information kan försvinna när data stackas.
Advisor present: Dr. Chris Juhlin
Examiner: Dr. Milovan Urosevic
Opponent: Álvaro Polín Tornero
Amini, Hamed. "A pragmatic approach to simulator-to-seismic modelling for 4D seismic interpretation". Thesis, Heriot-Watt University, 2014. http://hdl.handle.net/10399/2756.
Testo completoLuis, Alberto Bedriñana Mera. "SEISMIC PERFORMANCE AND SEISMIC DESIGN OF DAMAGE-CONTROLLED PRESTRESSED CONCRETE BUILDING STRUCTURES". Kyoto University, 2018. http://hdl.handle.net/2433/235084.
Testo completoZhang, 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.
Testo completoBuland, Arild. "Bayesian Seismic AVO Inversion". Doctoral thesis, Norwegian University of Science and Technology, Department of Mathematical Sciences, 2002. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-2005.
Testo completoSeismic analysis is a key element in successful exploration and production of natural resources. During the last decades, seismic methodology has had a significant progress with respect to both acquisition, processing and analysis. Despite all the new tec hnology, the uncertainty related to seismic analysis is still large, and even worse, the uncertainty is often not systematically assessed.
In this thesis, the uncertainty aspect of seismic amplitude versus offset (AVO) in version is assessed using a Bayesian approach to inversion. The main objective is to estimate elastic material parameters with associated uncertainty from large seismic data sets, but the in versionproblem also includes estimation of seismic wavelets and the noise level. State of the art statistical methodology is applied to attack these current and crucial geophysical problems. The core part of the work is presented in four separate papers written for geophysical journals, constituting Chapter 2 through 5 in this thesis. Each of the papers is self-contained, with exception of the references which are placed in a separate bibliography chapter.
Paper I, II and III: copyright SEG Paper III: copyright EAGE
Miller, Susan L. M. "Multicomponent seismic data interpretation". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq20841.pdf.
Testo completoChironi, Caterina. "Sub-basalt seismic imaging". Thesis, Imperial College London, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.410001.
Testo completoButterfield, Katherine J. "Seismic Liquefaction Trigger Mechanisms". Thesis, University of Canterbury. Civil Engineering, 2004. http://hdl.handle.net/10092/1179.
Testo completoDougherty, Martin Eugene. "Ocean bottom seismic scattering". Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/52938.
Testo completoGRSN 589503
Includes bibliographical references (p. 299-301).
by Martin Eugene Dougherty.
Ph.D.
Ballantyne, Brant Francis 1974. "Seismic isolation of bridges". Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/80632.
Testo completoIncludes bibliographical references (leaves 41-42).
by Brant Francis Ballantyne.
M.Eng.
Cilingir, Ulas. "Seismic response of tunnels". Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608467.
Testo completoPhansalkar, Nachiket S. "Seismic Substructure Design Workbook". University of Cincinnati / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1220554481.
Testo completoLu, Xiaolin. "Seismic ray impedance inversion". Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/6085.
Testo completoNurhandoko, Bagus Endar Bachtiar. "Fresnel zone seismic tomography". Kyoto University, 2000. http://hdl.handle.net/2433/180954.
Testo completoSavage, Brian Kirk Gurnis Michael. "Regional seismic wavefield propagation /". Diss., Pasadena, Calif. : California Institute of Technology, 2004. http://resolver.caltech.edu/CaltechETD:etd-05262004-100247.
Testo completoMonterroso, Juárez David Aníbal. "Statistical Seismology Studies in Central America : b-value, seismic hazard and seismic quiescence". Doctoral thesis, Uppsala University, Department of Earth Sciences, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3613.
Testo completoThe present thesis collects results of research applying theory and methods of statistical seismology to the seismicity of Central America, a region with a complex tectonic setting controlled by the interaction of four major plates, namely the Caribbean, Cocos, Nazca and North American plates.
Three different earthquake catalogues were used for studies focused on stress in a tectonic volume, seismic hazard maps and seismicity patterns (precursors), covering the region 94ºW to 81ºW and 5ºN to 20ºN.
Variations in the b-value, the parameter in Gutenberg & Richter’s equation LogN=a-bM, as a function of depth in the subduction zone were investigated. High b-values were identified in the upper part of the slab at depths of 80-110km beneath Guatemala-El Salvador and at depths 130-170km beneath Nicaragua. These anomalies may be related to the generation of volcanism occurring above them. Time dependence of the b-value was also studied. Five case studies were selected (events with MS ≥7.2) for a detailed analysis. In three out of five cases, it was possible to link b-value minima to the time of occurrence of corresponding large events.
Seismic quiescence was mapped as a function of time and space by a griding technique. The characteristics of the quiescence were calculated using the statistics Z and ß and for Time Window lengths between 1 and 5 years. Five positive anomalies were found, which can be associated with large earthquakes (MS≥7.2).
Finally, a Monte Carlo approach was utilized to evaluate the ground motion hazard and its uncertainties in northern Central America. A set of new seismic hazard maps exhibiting probabilistic values of peak ground acceleration (PGA) with 50%, 10%, and 5% probabilities of exceedance (PE) in 50 years is presented for a large area of northern Central America, including El Salvador and Guatemala.
Valenzuela-Beltrán, Federico, Sonia Ruiz, Alfredo Reyes-Salazar e J. Gaxiola-Camacho. "On the Seismic Design of Structures with Tilting Located within a Seismic Region". MDPI AG, 2017. http://hdl.handle.net/10150/626403.
Testo completoDuggan, Tim. "Seismic studies and travel time calculations for the Lachlan Fold Belt Seismic Array /". Adelaide, 1999. http://web4.library.adelaide.edu.au/theses/09SB/09sbd866.pdf.
Testo completoGloria, Lopez Juan Carlos. "Integrating AVO, Seismic Inversion, and Rock Physics in Agua Fría 3D Seismic Cube". Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for petroleumsteknologi og anvendt geofysikk, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-26114.
Testo completoCalazans, Matos de Souza Andre Eduardo. "Seismic signature of gold mineralisation from rock physics, petrology characterisation and seismic modelling". Thesis, Curtin University, 2021. http://hdl.handle.net/20.500.11937/88380.
Testo completoCATANIA, Maria. "SEISMIC NOISE ANALYSIS OF BROADBAND STATIONS OF THE ITALIAN SEISMIC NETWORK, USING POWER SPECTRAL DENSITY". Doctoral thesis, Università degli Studi di Palermo, 2022. https://hdl.handle.net/10447/543678.
Testo completoRumpfhuber, Eva-Maria. "An integrated analysis of controlled-and passive source seismic data /". To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2008. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.
Testo completoPolín-Tornero, Álvaro. "Resistivity and Seismic Characterization of an Embankment Dam. A Case Study in Northern Sweden". Thesis, Uppsala universitet, Geofysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-364563.
Testo completoDen främsta orsaken till brister i jordfyllningsdammar, som utgör 75% av alla dammar i världen (ICOLD, 2018) och är föremål för detta arbete, är inre erosion som orsakas av extrem läckage som togs inte med i beräkningar i deras konstruktioner. Denna erosion kan resultera i att en liten anomal struktur, som sannolikt inte anses vara riskabel, snabbt blir en betydande strukturell skada om den inte är uppmärksammas i tid. Därför krävs metoder som kan upptäcka dessa anomalier på ett icke-påträngande, kostnadseffektivt och känsligt sätt. Syftet med detta arbete är att analysera möjligheterna med tre geofysiska metoder (ERT, Seismisk Refraktion och Seismisk Reflektion) för att upptäcka och exakt lokalisera anomala strukturer inuti en jordfyllningsdamm. Denna studie har utförts på två fronter: genom (i) syntetisk modellering och (ii) ett experimentellt fältarbete vid en damm i norra Sverige. Resultaten visar att dessa metoder kan detektera olika strukturer inuti dammen på ett pålitligt och snabbt sätt.
Yang, Ting. "Seismic constraints on structure beneath hotspots : earthquake tomography & finite frequency tomography approaches /". View online ; access limited to URI, 2006. http://0-wwwlib.umi.com.helin.uri.edu/dissertations/dlnow/3232466.
Testo completoQuintana-Gallo, Patricio Ignacio. "The Nonlinear Dynamics Involved in the Seismic Assessment and Retrofit of Reinforced Concrete Buildings". Thesis, University of Canterbury. Civil and Natural Resources Engineering, 2014. http://hdl.handle.net/10092/9999.
Testo completoBradley, Brendon Archie. "Structure-Specific Probabilistic Seismic Risk Assessment". Thesis, University of Canterbury. Department of Civil and Natural Resources Engineering, 2009. http://hdl.handle.net/10092/2588.
Testo completoMarroquín, Herrera Iván Dimitri. "Reservoir characterization through the application of seismic attributes : multiattribute and unsupervised seismic facies analyses". Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=95679.
Testo completoLes attributs sismiques ont comme caractéristique de pouvoir décrire et quantifier les données sismiques, de telle manière qu’ils représentent un sous-ensemble de l’information totale contenue dans les données originales. En conséquence, les attributs sismiques peuvent être d’importants paramètres qualitatifs et quantitatifs des propriétés physiques d’un réservoir. L’analyse d’attributs sismiques a commencé avec la prospection de tâches lumineuses (<< bright spots >>) vers la fin des années 1960 et début des années 1970. Des travaux subséquents pendant les dernières décennies ont permis d’établir l’analyse d’attributs sismiques comme un outil valable lors d’études de caractérisation d’un réservoir. Je présente dans cette thèse deux études d’attributs sismiques pour l’interprétation de la forme de la trace sismique afin de prédire des caractéristiques géologiques significatives tels que: la lithologie, les propriétés des roches et/ou le contenu liquide. La première étude est un exemple de l’application d’attributs sismiques pour prédire des contrôles géologiques sur la production d’un réservoir coalbed methane. D’après les résultats de la calibration des diagraphies au câble avec des données sismiques, j’ai défini une fenêtre d’investigation à partir de laquelle des attributs sismiques de type amplitude, fréquence et phase ont été calculés. J’ai utilisé une analyse muIti-attribut pour dériver un model statistique dans le but d’estimer l’épaisseur du réservoir. Par la suite, j’ai utilisé des attributs mesurant la courbature d’une surface pour mettre en relief de subtiles structures géologiques et prédire les régions dans le réservoir avec une perméabilité augmentée. L’intégration des données de production avec les résultats obtenus lors d’analyses d’attributs sismiques indique que la meilleure production est en association avec l’épaississement du réservoir et le voisinage immédiat de structures géologiques. [...]
Brana, Luisa Patricia. "Imaging and interpreting seismic scattering in the crust and mantle using regional seismic networks". Thesis, University of Bristol, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393905.
Testo completoBeckwith, James Alexander. "Constant- and frequency-dependent seismic quality factors measured from surface and borehole seismic surveys". Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/17147/.
Testo completoGhaychi, Afrouz Setareh. "Seismic Wave Velocity Variations in Deep Hard Rock Underground Mines by Passive Seismic Tomography". Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/97890.
Testo completoDoctor of Philosophy
Mining activities unbalance the stress distribution underground, which is called mining induced stress. The stability of the underground mines is jeopardized due to accumulation of induced stress thus it is critical for the safety of the miners to prevent excessive induced stress accumulation. Hence it is important to continuously monitor the rock mass performance under the induced stress which can form cracks or slide along the existing discontinuities in rock mass. Cracking or sliding releases energy as the source of the seismic wave propagation in underground rocks, known as a seismic event. The velocity of seismic wave propagation can be recorded and monitored by installing seismic sensors such as geophones underground. The seismic events are similar to earthquakes but on a much smaller scale. The strength of seismic events is measured on a scale of moment magnitude. The strongest earthquakes in the world are around magnitude 9, most destructive earthquakes are magnitude 7 or higher, and earthquakes below magnitude 5 generally do not cause significant damage. The moment magnitude of mining induced seismic events is typically less than 3. In order to monitor mining induced stress variations, the propagated seismic wave velocity in rock mass is measured by a series of mathematical computations on recorded seismic waves called passive seismic tomography, which is similar to the medical CT-scan machine. Seismic wave velocity is like the velocity of the vibrating particles of rock due to the released energy from a seismic event. This study proposes to investigate trends of seismic velocity variations before and after each seismic event. The areas which are highly stressed have higher seismic velocities compared to the average seismic velocity of the entire area. Therefore, early recognition of highly stressed zones, based on the seismic velocity amount prior the occurrence of major seismic events, will be helpful to apply optimization of mining practices to prevent progression of high stress zones which can be ended to rock failures. For this purpose, time-dependent seismic velocity of a synthetic mine was compared to its stress numerically. Then, the seismic data of a narrow vein mine is evaluated to determine the seismic velocity trends prior to the occurrence of at least five major seismic events as the case study.
He, Yanxiao. "Seismic waveform simulation using hydro-mechanical reservoir models to assess time-lapse seismic attributes". Thesis, University of Leeds, 2015. http://etheses.whiterose.ac.uk/8864/.
Testo completoJohansen, Owe. "Seismic Shot Processing on GPU". Thesis, Norwegian University of Science and Technology, Department of Computer and Information Science, 2009. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9956.
Testo completoTodays petroleum industry demand an ever increasing amount of compu- tational resources. Seismic processing applications in use by these types of companies have generally been using large clusters of compute nodes, whose only computing resource has been the CPU. However, using Graphics Pro- cessing Units (GPU) for general purpose programming is these days becoming increasingly more popular in the high performance computing area. In 2007, NVIDIA corporation launched their framework for developing GPU utilizing computational algorithms, known as the Compute Unied Device Architec- ture (CUDA), a wide variety of research areas have adopted this framework for their algorithms. This thesis looks at the applicability of GPU techniques and CUDA for off-loading some of the computational workload in a seismic shot modeling application provided by StatoilHydro to modern GPUs. This work builds on our recent project that looked at providing check- point restart for this MPI enabled shot modeling application. In this thesis, we demonstrate that the inherent data parallelism in the core finite-difference computations also makes our application well suited for GPU acceleration. By using CUDA, we show that we could do an efficient port our application, and through further refinements achieve significant performance increases. Benchmarks done on two different systems in the NTNU IDI (Depart- ment of Computer and Information Science) HPC-lab, are included. One system is a Intel Core2 Quad Q9550 @2.83GHz with 4GB of RAM and an NVIDIA GeForce GTX280 and NVIDIA Tesla C1060 GPU. Our sec- ond testbed was an Intel Core I7 Extreme (965 @3.20GHz) with 12GB of RAM hosting an NVIDIA Tesla S1070 (4X NVIDIA Tesla C1060). On this hardware, speedups up to a factor of 8-14.79 compared to the original se- quential code are achieved, confirming the potential of GPU computing in applications similar to the one used in this thesis.