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Tesis sobre el tema "Experimental and numerical results"

Autor: Grafiati
Publicado: 10 de marzo de 2023
Última modificación: 31 de julio de 2025

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1

Yalamanchili, Seshu R. "Response of multiple fastener composite joints : numerical and experimental results /." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-11242009-020154/.

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2

Hein, Torsten, and Marcus Meyer. "Identification of material parameters in linear elasticity - some numerical results." Universitätsbibliothek Chemnitz, 2007. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200702040.

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In this paper we present some numerical results concerning the identification of material parameters in linear elasticity by dealing with small deformations. On the basis of a precise example different aspects of the parameter estimation problem are considered. We deal with practical questions such as the experimental design for obtaining sufficient data for recovering the unknown parameters as well as questions of treating the corresponding inverse problems numerically. Two algorithms for solving these problems can be introduced and extensive numerical case studies are presented and discu
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3

Perazzini, Matteo. "Evaluation of FBG strain sensor reliability through analytical, numerical and experimental results." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/22947/.

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The fiber Bragg grating (FBG) sensor is one of the most suitable sensors for structural health monitoring (SHM) of aircraft structures. In principle, the FBG, with adequate sampling and signal processing techniques, is usually more accurate than classical electrical resistive strain gauge. However, since the most common installation method is surface bonding, some significative differences between the strain in the host structure and the one experienced by the fiber may be observed. The aim of this work is the evaluation of the fiber Bragg grating optical fiber sensor reliability for strain d
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4

Marcel, Sébastien. "Numerical thermal investigation of a space probe heat shield - Comparison with experimental results." Thesis, KTH, Rymd- och plasmafysik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-91471.

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The objective of this internship was to study the physical properties of a thermal protection used for a space probe to be launched for a mission to Mars. The protection is composed of two main components. The topmost part is a cork derivative that deteriorates via ablation and pyrolysis in order to reduce the amount of heat transferred to the vehicle's main body. The junction between the ablative layer and the spaceship is ensured by a sandwich material composed of two carbon skins separated by a grid of Aluminium honeycomb cells. In a first part, numerical models of variable complexity were
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5

Novick, Jaison Allen. "Chaotic scattering in an open vase-shaped cavity: Topological, numerical, and experimental results." W&M ScholarWorks, 2009. https://scholarworks.wm.edu/etd/1539623550.

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We present a study of trajectories in a two-dimensional, open, vase-shaped cavity in the absence of forces The classical trajectories freely propagate between elastic collisions. Bound trajectories, regular scattering trajectories, and chaotic scattering trajectories are present in the vase. Most importantly, we find that classical trajectories passing through the vase's mouth escape without return. In our simulations, we propagate bursts of trajectories from point sources located along the vase walls. We record the time for escaping trajectories to pass through the vase's neck. Constructing a
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6

Huang, Jun. "A study on fatigue of welded structures : predictive modeling based on automatic learning, numerical analysis, and experimental results /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2002. http://wwwlib.umi.com/cr/ucsd/fullcit?p3071054.

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7

Wegman, Kevin R. "Numerical Modeling of a Printed Circuit Heat Exchanger Based on Experimental Results from the High-Temperature Helium Test Facility." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1461266010.

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8

RICCI, ANDREA. "Optimization of the structure-borne noise analysis methods with the help of virtual sensing with numerical and experimental results integration." Doctoral thesis, Università degli Studi di Trieste, 2022. http://hdl.handle.net/11368/3010835.

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Vibro-acoustic comfort has become an increasingly integral part of vehicle development over the past 20 years. The perception inside the cabin has a high impact on customer satisfaction and expresses the quality of premium vehicles. The phenomenon of interior noise has always been very complex to study. The problem is complicated by the fact that there is a well-known variability in products. This is due both to variability in the assembly line and in the properties of individual components. The goal is for as many vehicles as possible to meet the design requirements. Among the various categ
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9

Sierra-Espinosa, Fernando Zenaido. "The turbulence structure of the flow in a 90#deg C# pipe junction : a comparison of numerical predictions to experimental laser doppler and particle image velocimetry results." Thesis, Cardiff University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286901.

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10

Benezech, Jean. "Modélisation aux échelles méso- et macroscopique du comportement mécanique de zones singulières de pièces de structure en CMC." Thesis, Bordeaux, 2019. http://www.theses.fr/2019BORD0309.

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Les composites à matrice céramique (CMC) présentent une architecture multi-échelle complexe. Pour être utilisé en tant que composant de moteur aéronautique qui nécessitent des géométries complexes, ces matériaux doivent être tissés sous forme d'architectures textiles spécifiques. Mon travail s’est concentré sur l’étude d’une pièce de type raidisseur, et plus particulièrement sur le détail d’une jonction composite tissée. La taille caractéristique de cette pièce se situe entre les échelles méso- et macroscopique, ce qui rend impossible l’utilisation des hypothèses de séparabilité des échelles.
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11

Carvalho, Marco Aurélio. "IPCM Telemetry System: Experimental Results." International Foundation for Telemetering, 2015. http://hdl.handle.net/10150/596440.

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ITC/USA 2015 Conference Proceedings / The Fifty-First Annual International Telemetering Conference and Technical Exhibition / October 26-29, 2015 / Bally's Hotel & Convention Center, Las Vegas, NV<br>The aeronautical industries have been suffering financial cutbacks and the market has to face new challenges associated with new companies. Telemetry community has been facing the increase of the electromagnetic spectrum usage for a variety of applications (e.g. 4G), after all telemetry is everywhere. In view of these issues and focused on the inherent requirements of the Flight Test application,
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12

Diening, Lars. "Theoretical and numerical results for electrorheological fluids." [S.l. : s.n.], 2002. http://www.freidok.uni-freiburg.de/volltexte/458.

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13

Nyqvist, Robert. "Algebraic Dynamical Systems, Analytical Results and Numerical Simulations." Doctoral thesis, Växjö : Växjö University Press, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-1142.

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14

Muir, John P. "Experimental results for inductive strips in inhomogeneous finline." Thesis, Monterey, California. Naval Postgraduate School, 1991. http://hdl.handle.net/10945/26535.

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15

Louvet, Anne-Claire Alice. "The bounded rationality constraint : experimental and analytical results." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/14755.

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16

Sullivan, Patrick J. "Analysis and experimental results of RF CMOS mixers /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1998. http://wwwlib.umi.com/cr/ucsd/fullcit?p9835390.

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17

Pahmer, Sueda Carmen M. "Contribution à l'étude de filtres actifs de puissance de type shunt : commande-simulation." Grenoble INPG, 1996. http://www.theses.fr/1996INPG0080.

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Le travail presente consiste a etudier de maniere detaillee les algorithmes de commande d'un filtre actif de puissance de type shunt realise a partir d'un onduleur de tension connecte sur un reseau triphase de puissance finie. Ces algorithmes ont ete testes en simulation a l'aide du logiciel a usage general electro-magnetic transients program (emtp). A ce propos, cinq methodes distantes pour obtenir les courants de reference pour chaque phase de l'onduleur de tension ont ete formalises. De la meme maniere, la regulation de tension aux bornes du condensateur de cet onduleur a egalement ete abor
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18

Svensson, Olle. "Experimental results from the Lysekil Wave Power Research Site." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-179098.

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This thesis presents how experimental results, from wave power research performed offshore at the Lysekil research site, were obtained. The data were used to verify theoretical models as well as evaluate the feasibility of wave power as a future sustainable energy source. The first experiments carried out at the research site was the measurement of the force in a line where one end was connected to a buoy with a diameter of 3 m and the other end to a set of springs with limited stroke length. The system is exposed to high peak forces compared to average forces. The maximum measured force in th
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19

Kjellin, Jon. "Vertical Axis Wind Turbines : Electrical System and Experimental Results." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-182438.

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The wind power research at the division of Electricity at Uppsala University is aimed towards increased understanding of vertical axis wind turbines. The considered type of wind turbine is an H-rotor with a directly driven synchronous generator operating at variable speed. The experimental work presented in this thesis comprises investigation of three vertical axis wind turbines of different design and size. The electrical, control and measurement systems for the first 12 kW wind turbine have been designed and implemented. The second was a 10 kW wind turbine adapted to a telecom application. B
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20

Camara, Enrique. "Validation of Time Domain Flutter PredictionTool with Experimental Results." Thesis, KTH, Kraft- och värmeteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-160541.

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In turbomachinery applications as propulsion and power generation, there is a continuous endeavour to design engines with higher efficiency, driving the compressor and turbine blades towards slimmer and more aerodynamically loaded configurations that frequently operate with fluids at higher temperatures and speeds. This combination of reduced design space and adverse operating environment makes the blades more susceptible to flutter and challenges the designer to predict its occurrence. Nowadays there are different CFD solvers that allow the prediction of flutter in turbomachinery; some of the
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21

CALAND, VERONICA DE SOUZA. "EXPERIMENTAL RESULTS OF FRACTURE PARAMETERS FOR HIGH PERFORMANCE CONCRETE." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2001. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=1995@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>A utilização mais freqüente dos concretos de alto desempenho na Construção Civil exige um melhor conhecimento sobre o comportamento deste material e a verificação de possíveis modificações no dimensionamento de elementos estruturais, como a consideração do efeito de escala. Recentemente, os conceitos da teoria da mecânica da fratura para a análise do comportamento das estruturas começaram a ser utilizados. A energia de fraturamento passa a ser uma propriedade intrínseca do material, fundamental no controle da resistência à f
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22

Geoghegan, Mark. "EXPERIMENTAL RESULTS FOR MULTI-SYMBOL DETECTION OF PCM/FM." International Foundation for Telemetering, 2001. http://hdl.handle.net/10150/607605.

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International Telemetering Conference Proceedings / October 22-25, 2001 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>It has been previously shown, through computer simulations, that a multiple symbol detector can provide substantial gains in detection efficiency (nearly 3 dB) over traditional PCM/FM detectors. This is accomplished by performing correlations over multiple symbol intervals to take advantage of the memory inherent in the continuous phase PCM/FM signal. This paper presents measured hardware results, from a prototype developed for the Advanced Range Telemetry (ARTM)
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23

Kothari, Rajiv D. "Experimental results on aliasing errors in circular BIST design." Thesis, Virginia Tech, 1991. http://hdl.handle.net/10919/42137.

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<p>The circular BIST design is a technique in which the existing circuit is modified, so that the processes of test generation and response compaction are carried out by the circuit being tested itself. Most response compaction techniques suffer from loss of information, known as aliasing. Aliasing is said to occur in a response compaction technique when the response generated by the circuit, under the presence of a fault, is different from its fault-free response, but this information is later lost during compaction, and the faulty compacted response at the end of the test session is identica
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24

Stewart, Kevin Matthew. "MECHANICAL SIMULATION OF ARTICULAR CARTILAGE BASED ON EXPERIMENTAL RESULTS." DigitalCommons@CalPoly, 2009. https://digitalcommons.calpoly.edu/theses/93.

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Recently, a constituent based cartilage growth finite element model (CGFEM) was developed in order to predict articular cartilage (AC) biomechanical properties before and after growth. Previous research has noted limitations in the CGFEM such as model convergence with growth periods greater than 12 days. The main aims of this work were to address these limitations through (1) implementation of an exact material Jacobian matrix definition using the Jaumann-Kirchhoff (J-K) method and (2) quantification of elastic material parameters based upon research findings of the Cal Poly Cartilage Biomec
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25

Garza, Jared W. "Tip Rub Induced Blade Vibrations: Experimental and Computational Results." The Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=osu1391593189.

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26

Koray, Erge. "Numerical And Experimental Analysis Of Indentation." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12605953/index.pdf.

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Indentation tests are widely used with simultaneous measurements of indentation depth and force especially for determining material properties. In this study<br>numerical and experimental investigation of the force-indentation measurements is presented. For indentation tests on anisotropic metals, a novel indenter which is not self similar is used with three transducers to measure the displacements. It is seen that in order to have high repeatability and accuracy at the tests, workpiece and indenter parameters have crucial importance. These parameters in the indentations are analyzed by finite
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27

Duris, Joseph Gerald. "Experimental and numerical characterization of softballs." Online access for everyone, 2004. http://www.dissertations.wsu.edu/Thesis/Fall2004/J%5FDuris%5F121504.pdf.

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28

Bondarchuk, Alexander. "Rock mass behavior under hydropower embankment dams : results from numerical analyses." Licentiate thesis, Luleå : Luleå University of Technology, 2008. http://epubl.ltu.se/1402-1757/2008/03/.

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29

Li, Chi-kwong, and 李志光. "Some results on generalized spectral radii, numerical radii and spectral norms." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1986. http://hub.hku.hk/bib/B31230684.

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30

Austin, Anthony P. "Some new results on, and applications of, interpolation in numerical computation." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:11c16937-4a59-494d-a06f-6d27b634e2f3.

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This thesis discusses several topics related to interpolation and how it is used in numerical analysis. It begins with an overview of the aspects of interpolation theory that are relevant to the discussion at hand before presenting three new contributions to the field. The first new result is a detailed error analysis of the barycentric formula for trigonometric interpolation in equally-spaced points. We show that, unlike the barycentric formula for polynomial interpolation in Chebyshev points (and contrary to the main view in the literature), this formula is not always stable. We demonstrate
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31

Li, Chi-kwong. "Some results on generalized spectral radii, numerical radii and spectral norms /." [Hong Kong] : University of Hong Kong, 1986. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12321825.

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32

Nakauchi, Gene. "Analytical and numerical results for a curvature-driven geometric flow rule." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/127335/1/Gene_Nakauchi_Thesis.pdf.

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This research studies a particular curvature-driven geometric flow rule in the plane using techniques from differential geometry, computational mathematics, and formal asymptotics. The flow rule is a combination of the well-studied curve shortening flow, which is governed by a parabolic system of partial differential equations, and the Eikonal equation, which is governed by a hyperbolic system. The physical motivations for considering our model include propagating fire fronts and phase separation. The focus is on a variety of mathematical problems related to the flow rule, such as the explicit
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33

Le, Thi Thien Thuy. "Results on controllability and numerical approximation of the minimum time function." Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3424319.

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This thesis focuses on the unconstrained and constrained minimum time problems, in particular on regularity, numerical approximation, feedback and synthesis aspects. We first consider the problem of This thesis focuses on the unconstrained and constrained minimum time problems, in particular on regularity, numerical approximation, feedback and synthesis aspects. We first consider the problem of small-time local controllability for nonlinear finite-dimensional time-continuous control systems in presence of state constraints. More precisely, given a nonlinear control system subject to sta
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34

Fällman, Monika Carina. "Turbulence measurements in fiber suspension flows : experimental methods and results." Stockholm : Skolan för teknikvetenskap, Kungliga Tekniska högskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11460.

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35

Fällman, Monika Carina. "Turbulence measurements in fiber suspension flows : experimental methods and results." Licentiate thesis, KTH, Mechanics, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11460.

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<p>Turbulent mixing is present in many pulp and paper processes. It is a particularly important factor in the design and improvements of the paper machine headbox, influencing the final paper structure. During this project, experimental methods to quantify the effect of fibers on turbulent suspension flows have been developed, and then used for studying turbulent mixing in fiber suspensions. A technique that uses microprobes to measure passive scalar mixing of salt for the characterization of turbulent fluctuations in a fiber suspension flow has been developed: Conductivity micro-probes have b
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36

Mattozzi, Alessandro. "Small Molecule Diffusion in Spherulitic Polyethylene : Experimental Results and Simulations." Doctoral thesis, Stockholm : Chemical Science and Engineering, KTH, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4196.

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37

Mattozzi, Alessandro. "Small molecule diffusion in spherulitic polyethylene : experimental results and simulations /." Stockholm, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-355.

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38

Rice, Michael, and Kip Temple. "Space-Time Coding for Aeronautical Telemetry: Part II - Experimental Results." International Foundation for Telemetering, 2011. http://hdl.handle.net/10150/595778.

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ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, Nevada<br>Experiments involving side-by-side comparisons of traditional two-antenna transmissions and space-time coded (STC) transmissions involving two transmit antennas confirm theoretical predictions that space time coding is effective in removing signal dropouts caused by the "twoantenna problem." The experiments involved real transmitters on an airborne platform and a prototype demodulator operating at the Air F
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39

Cheraghi, Seyed Hossein 1957. "MULTIPLE CHOICE MODULAR DESIGN PROBLEM EXPERIMENTAL RESULTS AND SENSITIVITY ANALYSIS." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/276429.

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40

Breger, Lisa. "Trading in exogenous networks: a theoretical application and experimental results." OpenSIUC, 2016. https://opensiuc.lib.siu.edu/dissertations/1299.

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The Federal Communications Commission (FCC) allocates bands of radio frequency on the electromagnetic spectrum to agents call primary users (PUs), typically through standard auctions. However, with an increased demand for the use of radio spectrum, it is valuable to devise ways for unused channels to be sold in a secondary market to secondary users (SUs) who do not have licensing rights to access the spectrum. We first propose a model in which PUs can set prices and offer unused channels to SUs. We consider a small network of primary and secondary users in which the network is defined
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41

MEDDA, TIZIANA. "Three Essays on the generalizability of experimental results in economics." Doctoral thesis, Università degli Studi di Cagliari, 2016. http://hdl.handle.net/11584/266707.

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Although few economists today dismiss the use of the laboratory experiments, it would be a mistake to think that experimental methodology no longer represents a controversial issue in economics. One of the major criticisms is represented by the external validity of experimental data and concerns the transferability of results obtained in laboratory to the real world. The aim of this thesis is to tackle the issue of external validity focusing in particular on one aspect: the possible lack of representativeness of standard subjects pools usually used in economic research. The first experimental
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42

Ertunç, Özgür. "Experimental and numerical investigations of axisymmetric turbulence." [S.l.] : [s.n.], 2007. http://deposit.ddb.de/cgi-bin/dokserv?idn=983289212.

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43

Zakrisson, Björn. "Numerical and experimental studies of blast loading /." Luleå : Luleå University of Technology, 2010. http://pure.ltu.se/ws/fbspretrieve/4485391.

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44

Topcu, Nagihan. "Numerical, Analytical And Experimental Analysis Of Indentation." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12605942/index.pdf.

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Indentation is a practical and easy method, therefore, is a preferred method of material characterization. Main aim of this thesis study is to determine anisotropic properties of metals by indentation tests. The basic property of the indenter used in the finite element analyses and experiments is that it is specific to this process. Thesis includes studies on optimization of the indenter geometry, analyses of effects of friction coefficient, multiple indentations, tilting of the indenter and clamping of the specimen on force-displacements curves during indentation by finite element analyses.
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45

Isik, Nihat Sinan. "Experimental And Numerical Assessment Of Pressuremeter Testing." Phd thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/2/12607065/index.pdf.

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The purposes of this study are to investigate the possible effects of variables like testing depth, length to diameter ratio of the probe, presence of disturbed annulus around the borehole etc. on the derived parameters from the pressuremeter test, and to develop possible alternative methods for the determination of undrained shear strength of cohesive soils, and cohesion and internal friction angle of intermediate geomaterials. For this purpose numerical simulations of pressuremeter test were performed. In the study, it is also aimed to investigate the effect of rock quality designation (RQD)
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46

Dibben, David. "Numerical and experimental modelling of microwave applicators." Thesis, University of Cambridge, 1995. https://www.repository.cam.ac.uk/handle/1810/237037.

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This thesis presents a time domain finite element method for the solution of microwave heating problems. This is the first time that this particular technique has been applied to microwave heating. It is found that the standard frequency domain finite element method is unsuitable for analysing multimode applicators containing food-like materials due to a severe ill-conditioning of the matrix equations. The field distribution in multimode applicators loaded with low loss materials is found to be very sensitive to small frequency changes. Several solutions at different frequencies are therefore
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47

Pulicherla, Yashpal Surendhar Goud, and Ramkiran Kesana. "Experimental and Numerical Study of Orthotropic Materials." Thesis, Blekinge Tekniska Högskola, Institutionen för maskinteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-15710.

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In current enterprises, simulations are being utilized to lessen the cost of product advancement.  Along this line, there is an awesome enthusiasm for enhancing precision and accuracy of simulations. For an accurate and reliable simulation, it is essential to use an accurate material model and provide it with accurate material information. In exhibit industries, orthotropic materials are being simulated utilizing isotropic material model, as orthotropic material model requires more material data which is not promptly accessible. This proposal intends to test and identify orthotropic materials
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48

Vaziri, Mohsen. "Screw plate testing : experimental and numerical investigations." Thesis, University of Surrey, 1988. http://epubs.surrey.ac.uk/843439/.

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The estimation of the compressibility of normally and overconsolidated granular soils was the main aim of the research. A model screw plate instrument was designed and developed and various plate geometries and plate advancement mechanisms were studied with a view to assessing soil disturbance during installation. Screw plate loading tests were conducted by means of a plate 50 mm in diameter 3 mm thick and 5 mm pitch. All the tests were conducted in a calibration chamber under stress controlled conditions on normally and overconsolidated saturated Leighton Buzzard sand along Ko and isotropic s
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49

Shimoi, Koji. "Numerical and experimental investigation of ice shedding." Thesis, Wichita State University, 2010. http://hdl.handle.net/10057/3639.

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The shedding of ice accreted on aircraft surfaces poses a serious threat to flight safety as it can cause severe damage to downstream aircraft components such as aft-mounted engines. While there is strong need for ice shedding simulation tools to support aircraft icing analysis and certification, currently available ice shedding analysis methods may not predict ice fragment trajectory accurately due to the inability to simulate the random nature of ice shedding events and the lack of experimental aerodynamic data for ice fragments. In addition, most of the simulation tools have not been valida
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Chen, Lihong. "Numerical and experimental modelling of brush seals." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268200.

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