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Tesis sobre el tema "Velocity"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 25 de julio de 2025

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1

Makin, Alexis David James. "Velocity memory." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/velocity-memory(c5c1c28d-0a23-44a5-93bc-21f993d2e7ad).html.

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It is known that primates are sensitive to the velocity of moving objects. We can also remember velocity information after moving objects disappear. This cognitive faculty has been investigated before, however, the literature on velocity memory to date has been fragmented. For example, velocity memory has been disparately described as a system that controls eye movements and delayed discrimination. Furthermore, velocity memory may have a role in motion extrapolation, i.e. the ability to judge the position of a moving target after it becomes occluded. This thesis provides a unifying account of

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2

Seligman, Joshua R. "Power development through low velocity isotonic, or combined low velocity isotonic-high velocity isokinetic training /." Thesis, University of Hawaii at Manoa, 2003. http://hdl.handle.net/10125/7046.

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3

Zhu, Weijia. "A new instrumentation for particle velocity and velocity related measurements under water /." View online ; access limited to URI, 2006. http://0-wwwlib.umi.com.helin.uri.edu/dissertations/fullcit/3239913.

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4

Beg, Sarena. "The determinants of velocity." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq20781.pdf.

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5

Saeed, Khizer. "Laminar burning velocity measurements." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270733.

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6

Kopp, Robert William. "Determination of the velocity." Thesis, Monterey, California. Naval Postgraduate School, 1989. http://hdl.handle.net/10945/25837.

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Hypervelocity flows for velocities is excess of 1.4 km/sec (Mach 5) require very high stagnation temperature to avoid liquefaction. The arc heater wind tunnel has been designed to provide such flows. The electric-are driven wind tunnel can develop stagnation temperatures up to 13,000 K which will produce hypervelocity flows up to 7 km/sec (earth orbital speed). The nature of the flow, however, is such that the high temperature source flow may cause severe gradients at the nozzle exit. In order to perform aero-thermodynamic tests the characterization of the flow in the test section is required.

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7

Teng, Xiaoqing. "High velocity impact fracture." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32118.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 2005.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 315-330).<br>An in-depth understanding of dynamic ductile fracture is one of the most important steps to improve the survivability of critical structures such as the lost Twin Towers. In the present thesis, the macroscopic fracture modes and the fracture mechanisms of ductile structural components under high velocit

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8

Johansson, Torneus Daniel, and Alexander Kotoglou. "Velocity of plasma flow." Thesis, KTH, Skolan för elektro- och systemteknik (EES), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-199363.

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9

Stober, Gunter, and Christoph Jacobi. "Meteor head velocity determination." Universität Leipzig, 2007. https://ul.qucosa.de/id/qucosa%3A15571.

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Meteore, die in die Atmosphäre eindringen, bilden bei hohen Oberflächentemperaturen, die durch Kollisionen mit der umgebenden Luft hervorgerufen werden, einen mehrere Kilometer langen Plasmaschweif aus. An diesem Schweif werden ausgesandte Radarwellen reflektiert und zurückgestreut. Dies führt zu einem charakteristischen Schwingungsverhalten, auch Fresnel Zonen genannt, am Empfänger. Die Überlagerung dieser Wellen ist verantwortlich für die typische Signalform eines Meteors, mit dem abrupten Anstieg und dem exponentiellen Abfall für \'underdense\' Meteore. Mit Hilfe einer Simulation wird der t

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10

Stober, Gunter, and Christoph Jacobi. "Meteor head velocity determination." Universitätsbibliothek Leipzig, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-223206.

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Meteore, die in die Atmosphäre eindringen, bilden bei hohen Oberflächentemperaturen, die durch Kollisionen mit der umgebenden Luft hervorgerufen werden, einen mehrere Kilometer langen Plasmaschweif aus. An diesem Schweif werden ausgesandte Radarwellen reflektiert und zurückgestreut. Dies führt zu einem charakteristischen Schwingungsverhalten, auch Fresnel Zonen genannt, am Empfänger. Die Überlagerung dieser Wellen ist verantwortlich für die typische Signalform eines Meteors, mit dem abrupten Anstieg und dem exponentiellen Abfall für \"underdense\" Meteore. Mit Hilfe einer Simulation wird der t

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11

Hu, Yezheng. "Internal velocity estimation in laterally inhomogeneous areas by deconvolution of stacking velocity profiles." Thesis, University of London, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296900.

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The problem of inferring the velocity field is central to exploration seismology. Conventional velocity analysis is based on the hypothesis that reflection traveltime is a hyperbolic function of the distance between the source and the receiver. This is basis upon which interval velocities are obtained using Dix's equation for a horizontally layered model and Shah's equation for a dipping layered structure. However, in laterally inhomogeneous areas, traveltimes do not follow hyperbolae, hence, hyperbola based velocity estimation techniques fail in such areas. Although many sophisticated techniq

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12

Håkman, Olof. "Boltzmann Equation and Discrete Velocity Models : A discrete velocity model for polyatomic molecules." Thesis, Karlstads universitet, Institutionen för matematik och datavetenskap (from 2013), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-76143.

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In the study of kinetic theory and especially in the study of rarefied gas dynamics one often turns to the Boltzmann equation. The mathematical theory developed by Ludwig Boltzmann was at first sight applicable in aerospace engineering and fluid mechanics. As of today, the methods in kinetic theory are extended to other fields, for instance, molecular biology and socioeconomics, which makes the need of finding efficient solution methods still important. In this thesis, we study the underlying theory of the continuous and discrete Boltzmann equation for monatomic gases. We extend the theory whe

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13

Kotani, Yosuke. "Factors related to creating force-velocity and load-velocity profiles with the squat jump." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2021. https://ro.ecu.edu.au/theses/2487.

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It is well recognized that the ability to rapidly generate high levels of force is an important factor underpinning vertical jump performance. Recently, it has become popular to use forcevelocity (FV) and load-velocity (LV) profiles created from progressively loaded squat jumps (SJs) to guide the resistance training process. By creating FV profiles, the coach can determine if the athlete has a force or velocity deficit and then create an individualized training program based upon the determined deficit. Alternatively, the LV profile can be used to monitor performance and as a method for prescr

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14

Törnquist, Martin. "Investigation of rotational velocity sensors." Thesis, Linköping University, Department of Electrical Engineering, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-15904.

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<p><p>To improve the speed measurement of construction equipment, different sensor technologies have been investigated. Many of these sensor technologies are very interesting but to keep the extent of the thesis only two was chosen for testing, magnetic absolute angle sensors using Hall and GMR technology, to investigate if those are a valid replacement for the current measurement system that is using a passive sensor. Tests show that these sensors are capable of speed measurement, but because of noisy angle estimates they need filtering for good speed computation. This filtering introduces a

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15

Brown, Ian David. "The velocity of molecular clouds." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293612.

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16

Kondo, Shinya. "Constant velocity joint fatigue failure." Thesis, Imperial College London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.408722.

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17

Smith, Warren Robert. "High velocity gas journal bearings." Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317910.

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18

Rhodes, M. J. "High velocity circulating fluidized beds." Thesis, University of Bradford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373219.

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19

Cleaver, James Arnold Stafford. "Velocity distributions in conical hoppers." Thesis, University of Cambridge, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387131.

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20

Miller, Evan. "Magnetogenesis through Relativistic Velocity Shear." Thesis, Dartmouth College, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10001975.

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<p> Magnetic fields at all scales are prevalent in our universe. However, current cosmological models predict that initially the universe was bereft of large-scale fields. Standard magnetohydrodynamics (MHD) does not permit magnetogenesis; in the MHD Faraday’s law, the change in magnetic field <i> B</i> depends on <i>B</i> itself. Thus if <i> B</i> is initially zero, it will remain zero for all time. A more accurate physical model is needed to explain the origins of the galactic-scale magnetic fields observed today. In this thesis, I explore two velocity-driven mechanisms for magnetogene

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21

Bhullar, Anmol. "Velocity Compensation in Shaped Charges." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-297800.

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Shaped charges (SC) have been used as a means of explosives in military andcivilian use for decades. Thus, there is a substantial amount of research behindthis area. However, as this is a sensitive subject much of this research is notpublicly available. This thesis will look at how one can use asymmetries in SC’s to velocity compensatethe jet formation. Velocity compensation is required when the SC is perpendicularto the projectile direction, hence, leading to an angled jet which decreases thepenetration potential. The asymmetries that were investigated are• off-center detonation• angled line

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22

Trotter, Joshua. "Escape Velocity: A Narrative Short." ScholarWorks@UNO, 2004. http://louisdl.louislibraries.org/u?/NOD,98.

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Thesis (M.F.A.)--University of New Orleans, 2004.<br>Title from electronic submission form. "A thesis ... in partial fulfillment of the requirements for the degree of Master of Fine Arts in the Department of Drama and Communications."--Thesis t.p. Vita. Includes bibliographical references.

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23

Al, Jailawi Samer Saadi Hussein. "Damage detection using angular velocity." Diss., University of Iowa, 2018. https://ir.uiowa.edu/etd/6539.

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The present work introduces novel methodologies for damage detection and health monitoring of structural and mechanical systems. The new approach uses the angular velocity inside different mathematical forms, via a gyroscope, to detect, locate, and relatively quantify damage. This new approach has been shown to outperform the current state-of-the-art acceleration-based approach in detecting damage on structures. Additionally, the current approach has been shown to be less sensitive to environmental acoustic noises, which present major challenges to the acceleration-based approaches. Furthermor

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24

Hartman, Chase. "Development of a Velocity Controller for Following a Human Using Target Velocity in GPS-Denied Environments." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin154409977396946.

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25

Ma, Yu-Bin. "Velocity compensation in stepped frequency rada." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1995. http://handle.dtic.mil/100.2/ADA305583.

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Thesis (M.S. in Electrical Engineering) Naval Postgraduate School, December 1995.<br>Thesis advisor(s): G.S. Gill, David C. Jenn. "December 1995." Includes bibliographical references. Also available online.

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26

Patton, Jesse Earl. "Empirical velocity predictions at culvert inlets." Thesis, Montana State University, 2006. http://etd.lib.montana.edu/etd/2006/patton/PattonJ0506.pdf.

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27

Grytten, Frode. "Low-Velocity Penetration of Aluminium Plates." Doctoral thesis, Norwegian University of Science and Technology, Department of Structural Engineering, 2008. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-2123.

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<p>The present thesis describes research on quasi-static and low velocity perforation of rolled aluminium plates, where the main objective has been to gain a better knowledge of the physical processes taking place during this type of structural problem. The objective has been met by a combination of laboratory tests, material modelling and non-linear finite element simulations.</p><p>The thesis is organized in a synopsis, giving a brief introduction to the problem and summarising the main findings and conclusions, in addition to four independent papers. </p><p>Paper I presents an experimental

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28

Järhult, Susann J. "Hyperemic Brachial Artery Blood Flow Velocity." Doctoral thesis, Uppsala universitet, Medicin, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-132918.

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This thesis aims to evaluate the blood flow velocity in the Brachial artery during reactive hyperemia. Primarily to appraise the information it might contain regarding cardiovascular function and cardiovascular risk. Ultrasonographic doppler measurements of the Brachial artery were made on the 1016 men and women aged 70 included in the prospective investigation of the vasculature in Uppsala seniors (PIVUS) study. Analysis of the blood flow velocity in the forearm was made in comparison to established methods of estimating endothelial function, clinical markers of cardiovascular risk, the Frami

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29

Khoo, Stephen W. "Low velocity impact of composite structures." Thesis, Imperial College London, 1991. http://hdl.handle.net/10044/1/7388.

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30

Li, Jinxia. "µPIV Measurement of Grease Velocity Profiles." Licentiate thesis, Luleå tekniska universitet, Maskinelement, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-17504.

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Lubricating grease is commonly applied to lubricate e.g. rolling bearings, seals and gears. Grease has some clear advantages over lubricating oil. It is a semi-solid material, which prevents it from flowing/leaking out from the lubricated system and gives it sealing properties, protecting the system against contaminants. Unlike oil, grease has a much more complicated rheology, which makes it more difficult to model and understand grease flow. Grease acts as a lubricant reservoir, and understanding grease flow is essential in order to model and predict how grease is transported within e.g., a r

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31

Valentine, Helen Elizabeth Mary. "Reconstructing cosmological density and velocity fields." Thesis, University of Edinburgh, 2001. http://hdl.handle.net/1842/27570.

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I present a new quasi-linear method for reconstructing cosmological density and velocity fields from all-sky redshift surveys. The method is used to reconstruct the velocity field, dipole, bulk flows and distortion parameter <i>b</i> = Ω<sup>0.6</sup>/<i>b </i>from the PSCz survey. Analytic expressions for the cosmic variance and shot noise uncertainties on the reconstructed velocity field are presented. It is found that the uncertainties are reduced if reconstruction is carried out in the Local Group frame. The uncertainty on the dipole is also found. A generalised version of the Path Interch

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32

Dolbec, Michael R. "Velocity estimation using forward looking sonar." Thesis, Monterey, Calif. : Naval Postgraduate School, 2007. http://bosun.nps.edu/uhtbin/hyperion.exe/07Mar%5FDolbec.pdf.

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Thesis (M.S. in Engineering Science)--Naval Postgraduate School, March 2007.<br>Thesis Advisor(s): Doug Horner, Mathias Kölsch. "March 2007." Includes bibliographical references (p. 113). Also available in print.

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33

Archer, Grant R. "Seismic velocity analysis using dynamic programming /." Title page, contents and abstract only, 1987. http://web4.library.adelaide.edu.au/theses/09S.B/09s.ba671.pdf.

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34

Clark, Andrew P. "Velocity mapping of elementary photodissociation reactions." Thesis, University of Oxford, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433316.

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35

Bass, Mark James. "Velocity mapping of elementary bimolecular reactions." Thesis, University of Oxford, 2004. http://ora.ox.ac.uk/objects/uuid:ea381f05-6a68-435f-91d6-30d14a8c8dc4.

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A new and flexible velocity-map ion imaging apparatus, designed for the study of photodissociation processes and photon-initiated bimolecular reactions in a single molecular beam, has been constructed, developed and characterised. An image Legendre moment fitting analysis was developed to allow recovery of centre-of-mass (CM) angular scattering and kinetic energy release distributions from velocity-map ion images of the products of photon-initiated bimolecular reactions. The Legendre moment analysis methodology has been applied to images of the HCl(v' = 0,j' = 0-6) products of the reactions of

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36

Engels, Wouter Peter. "Decentralised velocity feedback control of structures." Thesis, University of Southampton, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.427705.

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37

Berg, Peter. "Optimal-velocity models of motorway traffic." Thesis, University of Bristol, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367664.

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38

Dodd, P. W. "Measurement of velocity profiles in ultrafiltration." Thesis, Imperial College London, 1986. http://hdl.handle.net/10044/1/37995.

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39

Weber, Charles M. (Charles Maria) 1955. "Rapid learning in high velocity environments." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/8003.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Sloan School of Management, 2003.<br>Includes bibliographical references (p. 524-569).<br>This dissertation investigates how rapid learning occurs in high technology industries, many of which operate in what Bourgeois and Eisenhardt (1988) term "high velocity environments." The dissertation consists of three empirical studies, which follow the method of extended case study research (e.g. Yin, 1981; Eisenhardt, 1989a). Semiconductor manufacturing and process development are chosen as settings for this dissertation because they exemplify so

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40

Schneider, Eduardo da Silva. "Exact Calculations for the Lagrangian Velocity." Bowling Green State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1555086598198833.

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41

Barbu, Ioana. "Tridimensional Estimation of Turbulent Fluid Velocity." Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S115/document.

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L'analyse du mouvement en 3 dimensions (3D) des fluides turbulents à évoluée vers un cadre nécessitant (i). un système de capteurs puissants (ii). le développement d'outils d'estimation de basse complexité (iii). des connaissances a priori issues de la physique du fluide. Des nouvelles techniques formulées dans ce contexte et s'appuyant sur le traitement d'images ont été proposées. Leur méthodologie repose sur la conjugaison du savoir propre à la communauté Vision par Ordinateur avec des modèles physiques de la dynamiques du fluide. Mais voilà, la plupart de ces procédures sont exprimées dans

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42

Zhang, Peihui. "Joining enabled by high velocity deformation." Columbus, Ohio : Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1061233577.

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Thesis (Ph. D.)--Ohio State University, 2003.<br>Title from first page of PDF file. Document formatted into pages; contains xvi, 255 p.; also includes graphics (some col.). Includes abstract and vita. Advisor: Glenn S. Daehn, Dept. of Materials Science and Engineering. Includes bibliographical references (p. 201-202).

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43

Chumacero, Polanco Erik. "Velocity sensorless control switched reluctance motors." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112062/document.

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Dans ce mémoire de thèse, nous présentons la conception, l'analyse de la stabilité, les simulations numériques et aussi les résultats des expérimentes concernant différents contrôleurs de vitesse mécanique du moteur à réluctance variable (MRV).Dans les deux premiers chapitres une brève description de la physique et de la construction du MRV est présenté ainsi que le problème du contrôle d'être abordé, c'est la commande de vitesse sans capteur. Il est aussi présenté l'état de l'art de ce problème et certains des solutions proposées dans d'autres travaux. On propose notre solution et on présente

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44

Bezerra, Rufino Ferreira Paiva Eduardo. "Wind Velocity Estimation for Wind Farms." Electronic Thesis or Diss., Université Paris sciences et lettres, 2023. http://www.theses.fr/2023UPSLM046.

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Cette thèse propose des algorithmes pour estimer la vitesse et la direction du vent pour des éoliennes et des parcs éoliens.Tout d'abord, nous proposons des méthodes basées sur les données pour estimer la vitesse effective du rotor (REWS) sans nécessiter la connaissance de certains paramètres physiques de l'éolienne, qui pourraient être inconnus de l'opérateur. Nous fournissons deux méthodes basées sur les données, l'une basée sur la régression par processus gaussien et l'autre combinant la régression par processus gaussien avec un observateur grand gain.Ensuite, en nous basant sur cette estim

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45

Jonathan, Bremer Lin Weili. "Single scan MR velocity quantification in ROI by alternating velocity encoding gradient pulse polarity between phase encoding steps." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2008. http://dc.lib.unc.edu/u?/etd,2046.

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Thesis (M.S.)--University of North Carolina at Chapel Hill, 2008.<br>Title from electronic title page (viewed Feb. 17, 2009). "... in partial fulfillment of the requirement for the degree of Master in the Department of Biomedical Engineering." Discipline: Biomedical Engineering; Department/School: Medicine.

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46

Lindgren, Harri. "Radial velocity measurements of late-type stars." Lund : Institutionen för astronomi, Lunds universitet, 1994. http://catalog.hathitrust.org/api/volumes/oclc/40300933.html.

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47

Dehra, Mala Seth. "High velocity formability and factors affecting it." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1143214139.

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48

Nerbråten, Stian. "Vehicle velocity estimation on non-flat roads." Thesis, Norwegian University of Science and Technology, Department of Engineering Cybernetics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9521.

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<p>The main purpose of this report, is to evaluate feasibility of using The Global Positioning System as an aiding tool for vehicle state estimation based on nonlinear techniques, and to develop a potential solution to the road bank angle problem. Previous work within the CEmACS project, includes development of a general nonlinear observer for lateral and longitudinal velocity, and an augmentation in the form of road-tire friction adaptation. Because the existing solutions have been shown to lack robustness with regards to certain disturbances, such as road grade and road bank angle, it has be

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49

Dahl, Trond-Olav. "Velocity Estimation in muscular Tissue by Ultrasound." Thesis, Norwegian University of Science and Technology, Department of Electronics and Telecommunications, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9598.

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<p>When estimating tissue velocities, the conventional autocorrelation method (AM) is only biased if the demodulation frequency is correctly estimated. While AM assumes the received centre frequency to be constant, the modified autocorrelation method (MAM) estimates the received centre frequency continuously from pulse to pulse. Although MAM has shown superior performance in simulation environments, it fails to show consistently better performance compared to AM when applied to experimental data. In order to investigate this lack of consistency, a model for simulation of signal from moving tis

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50

Josefsson, Mattias. "3D camera with built-in velocity measurement." Thesis, Linköpings universitet, Datorseende, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-68632.

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In today's industry 3D cameras are often used to inspect products. The camera produces both a 3D model and an intensity image by capturing a series of profiles of the object using laser triangulation. In many of these setups a physical encoder is attached to, for example, the conveyor belt that the product is travelling on. The encoder is used to get an accurate reading of the speed that the product has when it passes through the laser. Without this, the output image from the camera can be distorted due to a variation in velocity. In this master thesis a method for integrating the functionalit

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