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Tesis sobre el tema "Motion (Physics)"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 13 de febrero de 2022

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1

Su, Yi-Han S. B. Massachusetts Institute of Technology. "Motion-reversal in colloidal walkers." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/83780.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (page 24).<br>In this research, the manipulation of colloidal systems composed of superparamagnetic particles in water is studied by a simulation method. In response to an external magnetic field, the dipoles drive the beads to self-assemble into chains, which rotate and consequently move across a nearby surface. Under strong surface-interaction, the dynamic and equilibrium structures are modeled using a Bell model and measured using Mont

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2

Ud, Din Muhayy. "Physics-based motion planning for grasping and manipulation." Doctoral thesis, Universitat Politècnica de Catalunya, 2018. http://hdl.handle.net/10803/664279.

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This thesis develops a series of knowledge-oriented physics-based motion planning algorithms for grasping and manipulation in cluttered an uncertain environments. The main idea is to use high-level knowledge-based reasoning to define the manipulation constraints that define the way how robot should interact with the objects in the environment. These interactions are modeled by incorporating the physics-based model of rigid body dynamics in planning. The first part of the thesis is focused on the techniques to integrate the knowledge with physics-based motion planning. The knowledge is represe

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3

Chakrabarty, Ayan. "Brownian Motion of Low Symmetry Colloidal Particles." Kent State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=kent1397786396.

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4

Li, Qunqing. "Vortex physics of unconventional superconductors Ginzburg-Lindau theory /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22424817.

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5

李群慶 and Qunqing Li. "Vortex physics of unconventional superconductors: Ginzburg-Lindau theory." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31242017.

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6

Romero-Rochin, Victor Manuel. "Brownian motion and weak coupling in classical and quantum systems." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/14383.

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7

Shelton, Jessie. "Twisted and unstable : approaches to the string equations of motion." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/36813.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2006.<br>Includes bibliographical references (p. 183-197).<br>In this thesis we will explore three approaches to aspects of the fundamental structure of string theory. We first provide a brief review of perturbative string theory, and briefly discuss how each of the three topics to be discussed in the body of this thesis depart from this starting point. We then study the open string one-loop tadpole diagram in Witten cubic open string field theory. We compute this diagram both analytically and numerically and study the d

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8

Menezes, Debora Peres. "Boson mapping techniques and the nuclear collective motion." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329926.

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9

Watkins, Jonathan Stewart. "Density driven vortex motion in narrow channel superconductors." Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/6517/.

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We present simulations and continuum calculations of the rheology and structure of vortex matter confined to flow in narrow channels. First, through the use of Langevin dynamics we perform two-dimensional Couette flow simulations of the vortex liquid in a homogeneous magnetic field. In this sheared geometry we report wall slip at the channel boundary for high shear rates. A result that contrasts with the Newtonian constitutive relation suggested by Marchetti and Nelson(Marchetti, M. C. & Nelson, D. R. Phys. Rev. B 42 , 9938 (1990)). We also find structural ordering near the solid channel bound

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10

Sukirno. "Ion beam induced interface motion and impurity relocation." Thesis, University of Salford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293846.

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11

Rose, Richard Alexander. "Vortex motion and pinning in high temperature superconductors." Thesis, University of Southampton, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315999.

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12

Trefán, György. "Deterministic Brownian Motion." Thesis, University of North Texas, 1993. https://digital.library.unt.edu/ark:/67531/metadc279262/.

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The goal of this thesis is to contribute to the ambitious program of the foundation of developing statistical physics using chaos. We build a deterministic model of Brownian motion and provide a microscpoic derivation of the Fokker-Planck equation. Since the Brownian motion of a particle is the result of the competing processes of diffusion and dissipation, we create a model where both diffusion and dissipation originate from the same deterministic mechanism - the deterministic interaction of that particle with its environment. We show that standard diffusion which is the basis of the Fokker-P

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13

Davenport, Glen. "The Reliability of the Force and Motion Conceptual Evaluation." Fogler Library, University of Maine, 2008. http://www.library.umaine.edu/theses/pdf/DavenportG2008.pdf.

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14

Sepulveda, Nestor. "Physics models and analysis of collective behavior : supersolidity and cell motion." Paris 7, 2009. http://www.theses.fr/2009PA077254.

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Cette thèse comporte deux parties : l'une consacrée à l'étude de la supersolidité et l'autre à la modélisation d'une expérience sur le mouvement collectif de cellules. L'étude sur la supersolidité est faite dans le cadre de l'équation de Gross-Pitaevskii, en considérant un potentiel d'interaction entre particules non local. Ce choix, nous permet d'avoir un minimum de rotons dans la relation de dispersion responsable de la cristallisation. Avec ce modèle, nous calculons la fraction de superfluide comme fonction de l'intensité de l'interaction entre particule. Nous obtenons cette fraction de sup

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15

Spellmeyer, Neal W. (Neal Warren) 1970. "Rydberg atoms in an oscillating field : extracting classical motion from quantum spectra." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/47410.

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16

Sousi, Perla. "Collisions and detection for random walks and Brownian motion." Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609815.

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17

Rose, Brian E. J. "A diagnostic scheme for global precipitation based on vertical motion /." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33834.

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The relationship between precipitation and atmospheric vertical motion is investigated over the globe. By combining and averaging precipitation rates within small ranges of vertical motion, the mean precipitation rate is found to vary smoothly with vertical motion. The relationship is modelled with a simple function that assumes zero precipitation for subsidence and linearly increasing precipitation for ascending motion. Function parameters are computed from NCEP reanalysis data individually for every grid point and every calendar month. Variations in the slope account for geographical and sea

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18

Heath, Emily Claire. "4D Monte Carlo investigation of organ motion in radiotherapy for lung cancer." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=18810.

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A limitation of current dose calculation algorithms employed in radiotherapy treatment planning is the assumption that the patient's anatomy is static throughout the imaging, planning and delivery. 4D dose calculation methods employ non-linear image registration to determine the cumulative dose received in a deforming anatomy. In this work, we developed a 4D Monte Carlo dose calculation code, designated defDOSXYZ, which determines the dose received in a deforming voxel grid. Voxel deformations were determined from deformation vectors resulting from non-linear image registration between images

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19

Tam, Ka-lok Patrick. "A study of teachers' conceptions and teaching strategies in relation to students' alternative ideas about force and motion." [Hong Kong : University of Hong Kong], 1994. http://sunzi.lib.hku.hk/hkuto/record.jsp?B13833431.

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20

Alsanoosi, A. M. "Quantum tunnelling motion of methyl groups in the solid state." Thesis, University of Nottingham, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304699.

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21

Tatam, R. P. "An investigation of the motion of liquid short chain molecules using Rayleigh-Brillouin spectroscopy." Thesis, London Metropolitan University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370184.

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Dynamic laser light scattering spectroscopy is used to study the motion of short chain flexible molecules in the liquid state. Depolarised Rayleigh-Brillouin scattering is used to investigate the isomers of the homologous alkane series n-pentane to n-octane. In addition to the low frequency Lorentzian component, associated with molecular reorientation, a second Lorentzian component is found in the spectra from the liquids 2,2,4-trimethylpentane, 2-methylhexane, 3-methylhexane, 2,2-dimethylpentane, 2,3-dimethylpentane, 2,2,3- trimethylbutane, 2-methylpentane, 3-methylpentane, 2,2-dimethylbutane

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22

Mallett, Michael John Disney. "An analytical and computer modelling study of atomic motion in fluids constrained by barriers." Thesis, University of Kent, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358039.

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23

Peetermans, Joyce Anne. "Brownian motion of macromolecules inside single intact biological cells : microscope laser light scattering spectroscopy." Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/15178.

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24

Hogue, Caroline. "Computer modelling of the motion of granular particles." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239032.

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25

Heron, S. "From local constraints to global binocular motion perception." Thesis, University of Glasgow, 2014. http://theses.gla.ac.uk/5218/.

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Humans and many other predators have two eyes that are set a short distance apart so that an extensive region of the world is seen simultaneously by both eyes from slightly different points of view. Although the images of the world are essentially two-dimensional, we vividly see the world as three-dimensional. This is true for static as well as dynamic images. We discuss local constraints for the perception of three-dimensional binocular motion in a geometric-probabilistic framework. It is shown that Bayesian models of binocular 3D motion can explain perceptual bias under uncertainty and predi

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26

Goetz, Jon Michael. "A study of molecular order and motion in nematic liquid crystal mixtures." W&M ScholarWorks, 1993. https://scholarworks.wm.edu/etd/1539623842.

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Materials which flow like fluids, but possess anisotropic properties like molecular crystals, are called 'liquid crystals'. Studies of liquid crystals contribute to our understanding of how molecular orientation influences macroscopic properties. This thesis presents experimental and theoretical investigations of molecular order and dynamics in nematic liquid crystal systems. First, deuterium nuclear magnetic resonance is used to determine the degree of orientational order of both components of a liquid crystal mixture simultaneously. The temperature dependence of the four order parameters is

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27

Liu, Chenguang CL. "Dosimetric Evaluation and Verification of Respiratory Motion Management System in Radiation Oncology." University of Toledo Health Science Campus / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=mco1497974052016369.

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28

Miller, Adam Morrison. "Simulating collective motion from particles to birds." Thesis, University of Warwick, 2015. http://wrap.warwick.ac.uk/80148/.

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The main work of this thesis is the construction of a 3D computer model of animal flocking based on vision. The model took an additional input, to those usually considered in tradition models: the projection of all other flock members on to an individual's field of view. Making 2D models is easy (in fact 4 new ones are included in this thesis), but we should be drawing parallels with experimental data for behaviour in animal systems and we should be cautious indeed when drawing conclusions, based on those models. It is common in the literature not to compare model behaviours with measurable qu

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29

Sulikowska, Aleksandra. "Motion correction in high-field MRI." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/33674/.

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The work described in this thesis was conducted at the University of Nottingham in the Sir Peter Mansfield Imaging Centre, between September 2011 and 2014. Subject motion in high- resolution magnetic resonance imaging (MRI) is a major source of image artefacts. It is a very complex problem, due to variety of physical motion types, imaging techniques, or k-space trajectories. Many techniques have been proposed over the years to correct images for motion, all looking for the best practical solution in clinical scanning, which would give cost- effective, robust and high accuracy correction, witho

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30

Lhermitte, Julien. "Using coherent small angle xray scattering to measure velocity fields and random motion." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=104825.

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The dynamics of cross-linked polymers under stress, such as those thatmake up rubber, are still not well understood. A combination of coherent xrayhomodyne and heterodyne techniques is used in order to measure fluctuations of the system when stretched. The combination of both techniques allows for the measurement of flow patterns, as well as the random nature of the system. After data analysis, the results show that the measurements successfully captured this flow information. The flow velocity was discovered to have a time-dependent nature similar to that of the stress-strain curve. After the

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31

Vasconcelos, Nilza Maria Vilhena Nunes da Costa. "Motion and forces : a view of students' ideas in relation to physics teaching." Thesis, University College London (University of London), 1987. http://discovery.ucl.ac.uk/10019153/.

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This study concerns students' ideas about the existence or otherwise of forces in several dynamical situations involving moving objects and objects at rest. It aims to contribute to a better understanding of students' ideas about dynamics. It differs from previous research (a) in covering a wider-range among students and larger variation in taught Physics background. (b) in attempting to tap less verbal forms of evidence and (c) in attempting to avoid 'scientifism' in terms of the way to approach students and in terms of interpreting results. The empirical part of the study involved 338 studen

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32

Tyszka, J. Michael. "Visualisation of slow and medium speed fluid motion using magnetic resonance imaging." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240122.

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33

Jaroensutasinee, K. "Chaotic motion of charged particles in non-uniform magnetic fields." Thesis, University of Warwick, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282433.

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34

Luff, Stefan. "NMR studies of the motion of molecules related in structure to commercial lubricants." Thesis, University of Surrey, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308721.

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35

Winters, David J. "Aspects of D-branes : from branes in motion to meson spectroscopy." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84855.

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We discuss various aspects of D-branes, ranging from their basic properties as extended objects within string theory to their application, via the AdS/CFT correspondence, to the physics of gauge theories. Our initial emphasis is on the description of time-dependent, yet supersymmetric, brane configurations and to this end we first provide a review of established results on D-branes. We then investigate various supersymmetric brane intersections. Motivated by the recent results on supertubes, we investigate general constraints under which parallel brane-antibrane configurations are super

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36

Huang, Yuanyuan. "Effects of molecular motion on deuteron magic angle spinning NMR spectra." W&M ScholarWorks, 2007. https://scholarworks.wm.edu/etd/1539623519.

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Solid state deuteron NMR experiments, especially magic angle spinning (MAS) and off-magic angle spinning (OMAS), are developed to explore dynamical systems. A theoretical discussion of interactions relevant for spin-1 nuclei is presented. Practical aspects of MAS/OMAS experiments are described an detail. The dominant quadrupolar coupling interaction in deuteron NMR has been simulated and the effects of multiple-frame molecular motions on MAS/OMAS spectra are taken into account in this calculation. Effects of chemical shift anisotropy are also simulated, and shown to be small under conditions o

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37

Brenner, Rolf Physics Faculty of Science UNSW. "Single-electron transistors for detection of charge motion in the solid state." Awarded by:University of New South Wales. School of Physics, 2004. http://handle.unsw.edu.au/1959.4/20533.

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This work investigates advanced single-electron transistor (SET) devices for detection of charge motion in solid-state systems. In particular, novel, nanoscale twin-SET and double-island SET (DISET) detectors are introduced as sensitive charge detectors. Some advantages over conventional SET detectors in terms of noise performance, sensitivity and versatility are pointed out. With the prospect of present, transistor-based microelectronics facing serious limitations due to quantum effects and heat dissipation, alternative computing paradigms ??? such as quantum computers, quantum-dot cellular a

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38

Langley, K. "Spontaneous pattern formation as a route to droplet motion." Thesis, University of Nottingham, 2012. http://eprints.nottingham.ac.uk/12335/.

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Two important areas of physics are spontaneous pattern formation and droplet motion on surfaces. These two areas can be brought together since the texture of a surface can influence its wetting properties. Therefore by controlling the factors that determine the length scales of the patterns during spontaneous pattern formation, it is possible to design surfaces with very specific wetting properties. This was used to create surfaces that could direct the motion of sessile water droplets. Patterned surfaces with micro-wrinkled surface structures were prepared by thermally evaporating thin Alumin

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39

Mukhopadhyay, Amit Kumar. "Statistics for motion of microparticles in a plasma." Diss., University of Iowa, 2014. https://ir.uiowa.edu/etd/1369.

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I report experimental and numerical studies of microparticle motion in a dusty plasma. These microparticles are negatively charged and are levitated in a plasma consisting of electrons, ions and neutral gas atoms. The microparticles repel each other, and are confined by the electric fields in the plasma. The neutral gas damps the microparticle motion, and also exerts random forces on them. I investigate and characterize microparticle motion. In order to do this, I study velocity distributions of microparticles and correlations of their motion. To perform such a study, I develop new experimenta

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40

Hesselbrock, Andrew J. "A PERTURBED MOON: SOLVING NEREID'S MOTION TO MATCH OBSERVED BRIGHTNESS VARIATIONS." Miami University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=miami1344100992.

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41

Ballmann, Evgeniya [Verfasser], and U. [Akademischer Betreuer] Hanebeck. "Physics-Based Probabilistic Motion Compensation of Elastically Deformable Objects / Evgeniya Ballmann ; Betreuer: U. Hanebeck." Karlsruhe : KIT Scientific Publishing, 2012. http://d-nb.info/1184492786/34.

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42

Castillo, Hernán, Richard Moscoso, José Luis Phan, and Jorge Quiroz. "The Impact of Teaching the Concepts of Force and Motion in General Physics Courses." En Blanco y Negro, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/117019.

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This article focuses on the results of a research about teaching General Physics concepts to college students, and stresses the relevance of evaluating this kind of knowledge. Between 2009 and 2011, 4,535 students from the Pontifical Catholic University of Perú went through an evaluation process using the Force Concept Inventory test. The data results showed no significant improvement in the students’ learning process after having learned the concepts of force and motion, matters included in Physics 1 and Physics 2. The hardest concept to learn was Newton’s second law. Furthermore, a relevant

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43

Wettersten, Christina. "Creation of tools for manipulation tasks through Task and motion Planning using differentiable physics." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/123024.

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This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2019<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 58-62).<br>Toussaint et al. [1] have proposed a novel embedding of dynamic physical manipulations within a Task And Motion Planning (TAMP) framework to achieve a subset of sequential manipulation tasks involving tools. The wor

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44

Harris, Justin. "Where will it go? Concepts of motion in complex events." Diss., Temple University Libraries, 2014. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/239070.

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Psychology<br>Ph.D.<br>Common misconceptions provide a window into how people learn about and understand the world. This study explores the misconceptions of both children (5.5 to 6.5 year olds) and adults of how multiple components of motion combine in complex events. Children were shown to have basic, accurate conceptions of complex motion, but only if all components of motion were in the same dimension. For events that span two dimensions most children responded inconsistently, but some already showed a common adult misconception - one force dominating the motion. Across all ages, dominance

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45

Dyhr, Benjamin Nicholas. "The Chordal Loewner Equation Driven by Brownian Motion with Linear Drift." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/195702.

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Schramm-Loewner evolution (SLE(kappa)) is an important contemporary tool for identifying critical scaling limits of two-dimensional statistical systems. The SLE(kappa) one-parameter family of processes can be viewed as a special case of a more general, two-parameter family of processes we denote SLE(kappa, mu). The SLE(kappa, mu) process is defined for kappa>0 and real numbers mu; it represents the solution of the chordal Loewner equations under special conditions on the driving function parameter which require that it is a Brownian motion with drift mu and variance kappa. We derive propert

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46

Pater, Piotr. "A method for in-treatment measurement of residual respiratory motion of organs for stereotactic body radiation therapy." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=32606.

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Stereotactic Body Radiation Therapy is a radical treatment method for small lesions in the body where a surgical dose of radiation is given to attempt to sterilize the lesion. One of its limitations lays in the respiratory motion of the target during treatment. For this technique, high precision and accuracy on the dose delivered to the target is critical. This work produced a measurement method for the target's position and motion, during treatment, without giving extra dose to the patient. This method i

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47

Morrison, Angus James. "Using positron emission particle tracking (PEPT) to investigate the motion of granular media in a laboratory-scale tumbling mill." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/16969.

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Includes bibliographical references.<br>Positron emission particle tracking is a Lagrangian, single particle tracking technique in which the trajectory of a representative tracer particle is triangulated from the decay products of the positron-emitting radioisotope with which it is labelled. Although the trajectories of a tracer particle moving in a bulk of similar particles can be of interest, it is often more informative to employ the ergodic assumption and to thus convert trajectory data in the Lagrangian reference frame of the tracer particle into a fixed Eulerian reference frame. This has

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48

Ganguli, Surya 1977. "Quantum mechanics on phase space : geometry and motion of the Wigner distribution." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/49800.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science; and, (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 1998.<br>Includes bibliographical references (p. 64-65).<br>We study the Wigner phase space formulation of quantum mechanics and compare it to the Hamiltonian picture of classical mechanics. In this comparison we focus on the differences in initial conditions available to each theory as well as the differences in dynamics. First we derive new necessary conditions for the admissibility of Wigner functions and interpre

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49

Boutin, Daniel. "Rotational dynamics of Mars : using magnetic anomalies modeling to estimate Mars polar motion." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=81602.

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The possible polar wandering of the planet Mars is investigated by modeling some of the many surface magnetic anomalies discovered by Mars Global Surveyor (MGS). First I describe the physics of polar wandering by exposing the theory developed by Ricard et al. [1993] and Spada et al. [1996]. I derive the linear form of the equation of polar motion in the time domain valid for polar motion of up to 10 deg. The long-term polar motion of a non-rigid planet is also discussed via the rotational number first defined by Spada et al. [1996]. The main conclusion of Spada et al. [1996] can be reac

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50

Massie, Michael Todd. "Respiratory-Gated IMRT Quality Assurance with Motion in Two Dimensions." Wright State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=wright1284726606.

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