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Dissertations / Theses on the topic 'Euler's theorem'

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Published: 4 June 2021
Last updated: 25 July 2025

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1

Melo, Henrique Alves de. "Euler's formula in the plan and for polyhedra." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=11431.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>Polyhedra are geometric solids formed by a &#64257;nite number of polygons they can be convex or non-convex, regular or not regular. This work we make three demonstrations of Eulerâs theorem for polyhedra in one plane being used graphs. We will adopt preliminary de&#64257;nitions of polygons, polyhedra and graphs and make a brief study of the theorem before the demonstrations analysis when the theorem is valid and what conditions exist polyhedra, since the theorem is accepted. The work brings some applications in the form of questi
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2

Carvalho, Wesley da Silva. "Cálculo das fórmulas de Euler e Pick no geoplano e no GeoGebra." Universidade Federal de Goiás, 2016. http://repositorio.bc.ufg.br/tede/handle/tede/6970.

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Submitted by Cássia Santos (cassia.bcufg@gmail.com) on 2017-03-20T12:17:35Z No. of bitstreams: 2 Dissertação - Wesley da Silva Carvalho - 2016.pdf: 2739140 bytes, checksum: 009cb3705c3ac6a28927493419d88e0c (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-03-20T14:06:03Z (GMT) No. of bitstreams: 2 Dissertação - Wesley da Silva Carvalho - 2016.pdf: 2739140 bytes, checksum: 009cb3705c3ac6a28927493419d88e0c (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>M
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Gontijo, Helen Kássia Coelho. "Teorema de Euler em sala de aula." Universidade Federal de Goiás, 2014. http://repositorio.bc.ufg.br/tede/handle/tede/3876.

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Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2015-01-14T13:35:24Z No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Dissertação - Helen Kássia Coelho Gontijo - 2014.pdf: 1533837 bytes, checksum: 06babe56caa781b8fdc2bc90de1a2947 (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2015-01-14T14:11:25Z (GMT) No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Dissertação - Helen Kássia Coelho Gontijo - 2014.pdf: 1533837 bytes, checksum: 06babe56caa781b8fdc2bc90de1a29
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4

Silva, Hércules do Nascimento. "Poliedros Regulares no Ensino Médio." Universidade Federal da Paraíba, 2014. http://tede.biblioteca.ufpb.br:8080/handle/tede/8042.

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Submitted by Maike Costa (maiksebas@gmail.com) on 2016-03-28T12:29:14Z No. of bitstreams: 1 arquivototal.pdf: 800250 bytes, checksum: 42e76ab05ea580b4fd24a3312b9b4212 (MD5)<br>Made available in DSpace on 2016-03-28T12:29:14Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 800250 bytes, checksum: 42e76ab05ea580b4fd24a3312b9b4212 (MD5) Previous issue date: 2014-08-29<br>In this work we present a study of the regular polyhedra, comparing and discussing the concepts and de nitions given in the study of regular polyhedra in textbooks most widely used in Brazilian high schools. We prove the th
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5

Silva, Eduardo Alves da. "Formas ponderadas do Teorema de Euler e partições com raiz : estabelecendo um tratamento combinatório para certas identidades de Ramanujan." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/183163.

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O artigo Weighted forms of Euler's theorem de William Y.C. Chen e Kathy Q. Ji, em resposta ao questionamento de George E. Andrews, matemático estadunidense, sobre encontrar demonstrações combinatórias de duas identidades no Caderno Perdido de Ramanujan, nos mostra algumas formas ponderadas do Teorema de Euler sobre partições com partes ímpares e partes distintas via a introdução do conceito de partição com raiz. A propositura deste trabalho é envolta à apresentação de resultados sobre partições com raiz de modo a posteriormente realizar formulações combinatórias das identidades de Ramanujan po
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6

Justino, Gildeci José. "A característica de Euler." Universidade Federal da Paraíba, 2013. http://tede.biblioteca.ufpb.br:8080/handle/tede/7471.

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Submitted by Clebson Anjos (clebson.leandro54@gmail.com) on 2015-05-18T18:12:57Z No. of bitstreams: 1 arquivototal.pdf: 13930019 bytes, checksum: d5e52fb67904848f89fafaf5ec93c06d (MD5)<br>Approved for entry into archive by Clebson Anjos (clebson.leandro54@gmail.com) on 2015-05-18T18:15:19Z (GMT) No. of bitstreams: 1 arquivototal.pdf: 13930019 bytes, checksum: d5e52fb67904848f89fafaf5ec93c06d (MD5)<br>Made available in DSpace on 2015-05-18T18:15:19Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 13930019 bytes, checksum: d5e52fb67904848f89fafaf5ec93c06d (MD5) Previous issue date: 2013-09-
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7

Parreira, José Roberto Penachia. "Poliedros e o Teorema de Euler." Universidade Federal de Goiás, 2014. http://repositorio.bc.ufg.br/tede/handle/tde/2970.

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Submitted by Erika Demachki (erikademachki@gmail.com) on 2014-08-29T20:47:14Z No. of bitstreams: 2 Poliedros_E_Teorema_de_Euler.pdf: 4810573 bytes, checksum: f1f57ad45cfd7dc575fe3c3e963b24c6 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<br>Made available in DSpace on 2014-08-29T20:47:14Z (GMT). No. of bitstreams: 2 Poliedros_E_Teorema_de_Euler.pdf: 4810573 bytes, checksum: f1f57ad45cfd7dc575fe3c3e963b24c6 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2014-03-21<br>Coordenação de Aperfeiçoamento d
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8

Reeder, Patrick F. "Internal Set Theory and Euler's Introductio in Analysin Infinitorum." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1366149288.

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9

Paião, Ana Pedro Lemos. "Introduction to optimal control theory and its application to diabetes." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/16806.

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Mestrado em Matemática e Aplicações<br>O Cálculo das Variações e o Controlo Ótimo são dois ramos da Matemática que estão muito interligados entre si e também com outras áreas. Como exemplo, podemos citar a Geometria, a Física, a Mecânica, a Economia, a Biologia, bem como a Medicina. Nesta tese estudamos vários tipos de problemas variacionais e de Controlo Ótimo, estabelecendo a ligação entre alguns destes. Fazemos uma breve introdução sobre a Diabetes Mellitus, uma vez que estudamos um modelo matemático que traduz a interação entre a glicose e a insulina no sangue por forma a otimizar o
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10

Badar, Muhammad, and Ansir Iqbal. "Polya's Enumeration Theorem : Number of colorings of n-gons and non isomorphic graphs." Thesis, Linnaeus University, School of Computer Science, Physics and Mathematics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-6199.

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<p>Polya’s theorem can be used to enumerate objects under permutation groups. Using grouptheory, combinatorics and some examples, Polya’s theorem and Burnside’s lemma arederived. The examples used are a square, pentagon, hexagon and heptagon under theirrespective dihedral groups. Generalization using more permutations and applications tograph theory.Using Polya’s Enumeration theorem, Harary and Palmer [5] give a function whichgives the number of unlabeled graphs n vertices and m edges. We present their work andthe necessary background knowledge.</p>
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11

Cheng, Wing Kin. "Euler characteristic structure and weight homology /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?MATH%202004%20CHENGW.

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12

Cota, Andreia Caroline da Silva. "Euler e os n?meros pentagonais." Universidade Federal do Rio Grande do Norte, 2011. http://repositorio.ufrn.br:8080/jspui/handle/123456789/16078.

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Made available in DSpace on 2014-12-17T15:04:57Z (GMT). No. of bitstreams: 1 AndreiaCSC_DISSERT.pdf: 2649141 bytes, checksum: dae08204df4fb46613c38f0ae1be765c (MD5) Previous issue date: 2011-10-26<br>The present investigation includes a study of Leonhard Euler and the pentagonal numbers is his article Mirabilibus Proprietatibus Numerorum Pentagonalium - E524. After a brief review of the life and work of Euler, we analyze the mathematical concepts covered in that article as well as its historical context. For this purpose, we explain the concept of figurate numbers, showing its mode of genera
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13

Worthington, Joachim. "Stability theory and hamiltonian dynamics in the Euler ideal fluid equations." Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/16766.

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The study of shear flow steady states has led to a wealth of research in the field of fluid dynamics. By studying shear flows, we can understand how a fluid behaves and how coherent structures arise. We primarily study the stability of shear flows in the Euler equations. The Euler equations describe the dynamics of an ideal fluid which is incompressible, inviscid, and experiences no external forces. We study the family of shear flows of the Euler equations with vorticity of the form Ω(x,y)=cos(κxpxx+κypyy) on a two-dimensional periodic domain of size [0,2π/κx)×[0,2π/κy), and formulate this as
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14

Karlsson, Jonas. "Modular forms and converse theorems for Dirichlet series." Thesis, Linköping University, Applied Mathematics, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-19446.

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<p>This thesis makes a survey of converse theorems for Dirichlet series. A converse theo-rem gives sufficient conditions for a Dirichlet series to be the Dirichlet series attachedto a modular form. Such Dirichlet series have special properties, such as a functionalequation and an Euler product. Sometimes these properties characterize the modularform completely, i.e. they are sufficient to prove the proper transformation behaviourunder some discrete group. The problem dates back to Hecke and Weil, and has morerecently been treated by Conrey et.al. The articles surveyed are:</p><ul><li>"An exten
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15

Hanson, Christopher J. (Christopher John) 1971. "Integrated lifting-surface and Euler/boundary-layer theory analysis method for marine propulsors." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/91328.

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Thesis (Nav.E.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2001.<br>Includes bibliographical references (leaves 62-63).<br>by Christopher J. Hanson.<br>Nav.E.<br>S.M.
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16

Perera, Simon. "Grothendieck rings of theories of modules." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/grothendieck-rings-of-theories-of-modules(897cbbd9-77b6-47fb-8cf8-d15c7432e61b).html.

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We consider right modules over a ring, as models of a first order theory. We explorethe definable sets and the definable bijections between them. We employ the notionsof Euler characteristic and Grothendieck ring for a first order structure, introduced byJ. Krajicek and T. Scanlon in [24]. The Grothendieck ring is an algebraic structurethat captures certain properties of a model and its category of definable sets.If M is a module over a product of rings A and B, then M has a decomposition into a direct sum of an A-module and a B-module. Theorem 3.5.1 states that then the Grothendieck ring of M
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17

Calin, Ovidiu, and Chang Der-Chen. "The geometry on a step 3 Grushin model." Universität Potsdam, 2004. http://opus.kobv.de/ubp/volltexte/2008/2672/.

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In this article we study the geometry associated with the sub-elliptic operator ½ (X²1 +X²2), where X1 = ∂x and X2 = x²/2 ∂y are vector fields on R². We show that any point can be connected with the origin by at least one geodesic and we provide an approximate formula for the number of the geodesics between the origin and the points situated outside of the y-axis. We show there are in¯nitely many geodesics between the origin and the points on the y-axis.
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18

Mucelin, Cláudio. "Demonstrações bijetivas em partições." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/306031.

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Orientador: Andréia Cristina Ribeiro<br>Dissertação (mestrado profissional) - Universidade Estadual de Campinas, Instituto de Matemática, Estatística e Computação Científica<br>Made available in DSpace on 2018-08-17T16:44:00Z (GMT). No. of bitstreams: 1 Mucelin_Claudio_M.pdf: 744549 bytes, checksum: 062211ac0a3abf9bcf171fe9881dcafa (MD5) Previous issue date: 2011<br>Resumo: Este trabalho apresenta alguns resultados sobre partições de números inteiros e a importância deles na história da Matemática e da Teoria dos Números. Encontrar demonstrações bijetivas em partições não é nada fácil. Mas,
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Gill, C. P. "Growth series of certain groups." Thesis, University of Nottingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282568.

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20

Ayaz, Razmjooei. "Investigation of SomeCognitive Difficulties inSet Theory." Thesis, Stockholms universitet, Institutionen för matematikämnets och naturvetenskapsämnenas didaktik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-91976.

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A previous study on students approach to problems of Set Theory in Iran brought me somehypotheses. These encouraged me to test the hypotheses in this supplementary study. Mypurpose of this study was to consider some students' cognitive difficulties in Set Theory. Iinvestigated students’ conceptual understanding of two major concepts of Set Theory – theconcepts of inclusion and belonging. I also studied the ways students use Venn diagram tofigure out problems in Set Theory. I wanted to examine how students figure out the differentmeanings of words in the natural and formal language. To do so, I
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21

Backström, Daniel. "Modelling the flexural dynamics of sandwich beams using Bernoulli-Euler or Timoshenko theory with frequency dependent parameters /." Stockholm, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-508.

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22

Leoncio, Sarah Mara Silva. "Os artigos de Euler sobre os n?meros amig?veis." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/16094.

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Made available in DSpace on 2014-12-17T15:05:00Z (GMT). No. of bitstreams: 1 SaraMSL_DISSERT.pdf: 4622900 bytes, checksum: 9c1229ad25c3c58fdb8c23fa644070ee (MD5) Previous issue date: 2013-01-22<br>Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico<br>Among the many methodological resources that the mathematics teacher can use in the classroom, we can cite the History of Mathematics which has contributed to the development of activities that promotes students curiosity about mathematics and its history. In this regard, the present dissertation aims to translate and analyze, mathem
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23

Ungun, Yigit. "Numerical Solution Of One Dimensional Detonation Tube With Reactive Euler Equations Using High Resolution Method." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614128/index.pdf.

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In this thesis, numerical simulation of one dimensional detonation tube problem is solved with finite rate chemistry. For the numerical simulation, Euler equations have been used. Since detonation tube phenomena occurs in high speed flows, viscosity eects and gravity forces are negligible. In this thesis, Godunov type methods have been studied and afterwards high resolution method is used for the numerical solution of the detonation tube problem. To solve the chemistry aspect of the problem ZND theory have been used. For the numerical solution, a FORTRAN code is written and the numerical solut
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Hariz, Belgacem Khader. "Higher-order Embedding Formalism, Noether’s Theorem on Time Scales and Eringen’s Nonlocal Elastica." Electronic Thesis or Diss., Pau, 2022. https://theses.hal.science/tel-03981833.

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En mathématiques, le calcul des variations est un ensemble de méthodes permettant la détermination de solutions à des problèmes d'optimisation des quantités traduites en termes de fonctionnelle. De nombreuses applications existent, notamment dans la recherche de courbes ou de surfaces minimales. Les systèmes dynamiques considérés sont de natures diverses (équations différentielles, intégrales ou stochastiques) et modélisent des problèmes d'origines multiples : aérospatiale, automobile, biologie, économie, médecine, etc. Le théorème de Noether présente un fort intérêt puisqu'il propose une loi
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FREITAS, Janderson dos Santos de. "O Teorema de Euler para poliedros e a topologia dos grafos no ensino básico." Universidade Federal do Maranhão, 2017. http://tedebc.ufma.br:8080/jspui/handle/tede/1873.

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Submitted by Rosivalda Pereira (mrs.pereira@ufma.br) on 2017-08-25T20:24:28Z No. of bitstreams: 1 JandersonFreitas.pdf: 2087995 bytes, checksum: e49b1008df3093f81aeb841870a06df9 (MD5)<br>Made available in DSpace on 2017-08-25T20:24:28Z (GMT). No. of bitstreams: 1 JandersonFreitas.pdf: 2087995 bytes, checksum: e49b1008df3093f81aeb841870a06df9 (MD5) Previous issue date: 2017-05-08<br>The paper presents problem solving using Graph Theory and Euler’s Theorem. The research performs specific activities in high school involving graphs in various applications of the Euler relation as a problem solvi
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Fonte, Carla Cristina 1990. "Introdução aos grafos no ensino médio." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/306327.

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Orientador: Pedro José Catuogno<br>Dissertação (mestrado profissional) - Universidade Estadual de Campinas, Instituto de Matemática, Estatística e Computação Científica<br>Made available in DSpace on 2018-08-26T10:58:39Z (GMT). No. of bitstreams: 1 Fonte_CarlaCristina_M.pdf: 29679078 bytes, checksum: 0009a52938b1cb16c79bdc47af10d323 (MD5) Previous issue date: 2014<br>Resumo: Neste trabalho, exploram-se os conceitos iniciais e aplicações importantes da teoria de grafos. Acentuam-se, nas aplicações, alguns problemas clássicos, como o das sete pontes de Königsberg, o do caixeiro viajante e o pr
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Ho, Qhinhon D. "An Assessment Of The Accuracy Of The Euler-Bernoulli Beam Theory For Calculating Strain and Deflection in Composite Sandwich Beams." ScholarWorks@UNO, 2015. http://scholarworks.uno.edu/td/2084.

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This study focuses on assessing the accuracy of the Euler-Bernoulli beam theory as computational bases to calculate strain and deflection of composite sandwich beam subjected to three-point and four-point bending. Two groups of composite sandwich beams tests results will be used for comparison purposes. Mechanical properties for the laminated skin are provided by researchers from University of Mississippi (Ellen Lackey et al., 2000). Mechanical properties for the balsa wood core are provided by Alcan Baltek Corporation. Appropriate material properties and test geometries are then used in the E
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Pratt, Brittan Sheldon. "An assessment of least squares finite element models with applications to problems in heat transfer and solid mechanics." Texas A&M University, 2008. http://hdl.handle.net/1969.1/85941.

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Research is performed to assess the viability of applying the least squares model to one-dimensional heat transfer and Euler-Bernoulli Beam Theory problems. Least squares models were developed for both the full and mixed forms of the governing one-dimensional heat transfer equation along weak form Galerkin models. Both least squares and weak form Galerkin models were developed for the first order and second order versions of the Euler-Bernoulli beams. Several numerical examples were presented for the heat transfer and Euler- Bernoulli beam theory. The examples for heat transfer included: a dif
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Kurmann, André. "New Keynesian price and cost dynamics : theory and evidence /." Full text, Acrobat Reader required, 2002. http://www.gbv.de/dms/zbw/557985994.pdf.

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Lapébie, Julie. "Sur la topologie des ensembles semi-algébriques : caractéristique d'Euler; degré topologique et indice radial." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4719/document.

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Suite aux travaux de Zbigniew Szafraniec et Nicolas Dutertre, je me suis intéressée aux calculs de caractéristiques d'Euler de certains espaces semi-algébriques. En particulier, ceux de laforme : $ {(-1)^{varepsilon_1} G_1geq 0 }cap...cap{(-1)^{varepsilon_l} G_lgeq 0}cap W$, où $epsilon=(epsilon_1,...,epsilon_l)in{0,1}^l$, $G=(G_1,...,G_l):R^nrightarrowR^l$ polynomiale et $W:=F^{-1}(0)subsetR^n$ où $F:R^nrightarrowR^k$ et $k+lleq n$. Une fois le cas lisse traité, on intersecte ces ensembles avec ${ fgeq 0}$ ou ${ fleq 0}$, où $f$ est polynomiale telle que $f^{-1}(0)$ admette un nombre fini de
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Batihan, Ali Cagri. "Vibration Analysis Of Cracked Beams On Elastic Foundation Using Timoshenko Beam Theory." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613602/index.pdf.

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In this thesis, transverse vibration of a cracked beam on an elastic foundation and the effect of crack and foundation parameters on transverse vibration natural frequencies are studied. Analytical formulations are derived for a beam with rectangular cross section. The crack is an open type edge crack placed in the medium of the beam and it is uniform along the width of the beam. The cracked beam rests on an elastic foundation. The beam is modeled by two different beam theories, which are Euler-Bernoulli beam theory and Timoshenko beam theory. The effect of the crack is considered by represent
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Zugliani, Giuliano Angelo. "Fórmulas de Poincaré-Hopf e classes características de variedades singulares." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/55/55135/tde-02042008-144834/.

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Neste trabalho, estudamos diferentes construções e propriedades das classes características de variedades suaves e singulares. Para ilustrar a teoria, calculamos a obstrução de Euler de algumas superfícies singulares no espaço tridimensional e apresentamos uma fórmula do tipo Poincaré-Hopf para variedades singulares<br>In this work, we study different constructions and properties of the characteristics classes of smooth and singular manifolds. To ilustrate the theory, we compute the Euler obstructions of some singular surfaces in tridimensional space and state a Poincaré-Hopf´s formula for sin
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Dantas, Joice de Andrade. "De solutione problematum diophanteorum per n?meros integros : o primeiro trabalho de Euler sobre equa??es diofantinas." Universidade Federal do Rio Grande do Norte, 2011. http://repositorio.ufrn.br:8080/jspui/handle/123456789/14500.

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Made available in DSpace on 2014-12-17T14:36:38Z (GMT). No. of bitstreams: 1 JoiceAD_DISSERT.pdf: 4224825 bytes, checksum: d7ade3189d2bc3a42ecfc46d7a810c45 (MD5) Previous issue date: 2011-11-07<br>The present dissertation analyses Leonhard Euler?s early mathematical work as Diophantine Equations, De solutione problematum diophanteorum per n?meros ?ntegros (On the solution of Diophantine problems in integers). It was published in 1738, although it had been presented to the St Petersburg Academy of Science five years earlier. Euler solves the problem of making the general second degree express
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Ruiz, Camila Mariana. "Sobre a topologia das singularidades de Morin." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/55/55135/tde-12012016-155424/.

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Neste trabalho, nós abordamos alguns resultados de T. Fukuda e de N. Dutertre e T. Fukui sobre a topologia das singularidades de Morin. Em particular, apresentamos uma nova prova para o Teorema de Dutertre-Fukui [2, Theorem 6.2], para o caso em que N = Rn, usando a Teoria de Morse para variedades com bordo. Baseados nas propriedades de um n-campo de vetores gradiente (&nabla; f1; : : : &nabla;fn) de uma aplicação de Morin f : M &rarr; Rn, com dim M &ge; n, na segunda parte deste trabalho, nós introduzimos o conceito de n-campos de Morin para n-campos de vetores que não são necessariamente gra
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35

Dettmann, Aaron. "Loosely coupled, modular framework for linear static aeroelastic analyses." Thesis, KTH, Lättkonstruktioner, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-262047.

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A computational framework for linear static aeroelastic analyses is presented. The overall aeroelasticity model is applicable to conceptual aircraft design studies and other low-fidelity aero-structural analyses. A partitioned approach is used, i. e. separate solvers for aerodynamics and structure analyses are coupled in a suitable way, together forming a model for aeroelastic simulations. Aerodynamics are modelled using the vortexlattice method (VLM), a simple computational fluid dynamics (CFD) model based on potential flow. The structure is represented by a three-dimensional (3D) Euler-Berno
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Cramm, Kenneth Peter. "Solutions to the Chinese Postman Problem." CSUSB ScholarWorks, 2000. https://scholarworks.lib.csusb.edu/etd-project/1683.

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Considering the Chinese Postman Problem, in which a mailman must deliver mail to houses in a neighborhood. The mailman must cover each side of the street that has houses, at least once. The focus of this paper is our attempt to discover the optimal path, or the least number of times each street is walked. The integration of algorithms from graph theory and operations research form the method used to explain solutions to the Chinese Postman Problem.
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37

Rezende, Ana Claudya Botelho de. "Uma generalização da Circunferência dos Nove Pontos para a Educação Básica." reponame:Repositório Institucional da UFABC, 2017.

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Orientadora: Profa. Dra. Ana Carolina Boero<br>Dissertação (mestrado) - Universidade Federal do ABC, Programa de Pós-Graduação em Mestrado Profissional em Matemática em Rede Nacional, 2017.<br>Neste trabalho, mostraremos que dado um triângulo e três cevianas que se intersetam em um ponto P, existe uma cônica que passa pelos pontos médios dos lados, pelos pés das cevianas e pelos pontos médios dos segmentos que unem P aos vértices do triângulo. Antes de apresentá-lo, contudo, exploraremos a Reta de Euler, a Circunferência dos Nove Pontos e algumas de suas principais propriedades. Finalizaremos
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Le, goff Nicolas. "Construction of a conformal hexahedral mesh from volume fractions : theory and applications." Electronic Thesis or Diss., université Paris-Saclay, 2020. http://www.theses.fr/2020UPASG033.

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Ces travaux abordent le problème de la génération automatique de maillages hexaédriques pour des codes de simulation, à partir d'un maillage portant des fractions volumiques, c'est-à-dire dont les mailles peuvent contenir plusieurs matériaux. La solution proposée doit contruire un maillage hexaédrique dans lequel chaque maille correspond à un seul matériau, et dont les interfaces entre matériaux doivent former des surfaces lisses. D'un point de vue théorique, nous cherchons à adapter et étendre des solutions existantes, et à les appliquer sur une large variété d'exemples : certains issus de mo
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Kaalen, Stefan. "Semi-Markov processes for calculating the safety of autonomous vehicles." Thesis, KTH, Matematisk statistik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-252331.

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Several manufacturers of road vehicles today are working on developing autonomous vehicles. One subject that is often up for discussion when it comes to integrating autonomous road vehicles into the infrastructure is the safety aspect. There is in the context no common view of how safety should be quantified. As a contribution to this discussion we propose describing each potential hazardous event of a vehicle as a Semi-Markov Process (SMP). A reliability-based method for using the semi-Markov representation to calculate the probability of a hazardous event to occur is presented. The method si
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Jacobsson, Mattias. "Bitwise relations between n and φ(n) : A novel approach at prime number factorization". Thesis, Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-16655.

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Cryptography plays a crucial role in today’s society. Given the influence, cryptographic algorithms need to be trustworthy. Cryptographic algorithms such as RSA relies on the problem of prime number factorization to provide its confidentiality. Hence finding a way to make it computationally feasible to find the prime factors of any integer would break RSA’s confidentiality. The approach presented in this thesis explores the possibility of trying to construct φ(n) from n. This enables factorization of n into its two prime numbers p and q through the method presented in the original RSA paper. T
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Garcia, Menendez Fernando. "High-resolution three-dimensional plume modeling with Eulerian atmospheric chemistry and transport models." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50264.

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Eulerian chemical transport models are extensively used to steer environmental policy, forecast air quality and study atmospheric processes. However, the ability of these models to simulate concentrated atmospheric plumes, including fire-related smoke, may be limited. Wildland fires are important sources of air pollutants and can significantly affect air quality. Emissions released in wildfires and prescribed burns have been known to substantially increase the air pollution burden at urban locations across large regions. Air quality forecasts generated with numerical models can provide valuabl
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Gonzalez, Campos David Jonathan. "A Study of Shock Analysis Using the Finite Element Method Verified with Euler-Bernoulli Beam Theory; Mechanical Effects Due to Pulse Width Variation of Shock Inputs; and Evaluation of Shock Response of a Mixed Flow Fan." DigitalCommons@CalPoly, 2014. https://digitalcommons.calpoly.edu/theses/1294.

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A Study Of Shock Analysis Using The Finite Element Method Verified With Euler-Bernoulli Beam Theory; Mechanical Effects Due To Pulse Width Variation Of Shock Inputs; And Evaluation Of Shock Response Of A Mixed Flow Fan David Jonathan González Campos For many engineers that use finite element analysis or FEA, it is very important to know how to properly model and obtain accurate solutions for complicated loading conditions such as shock loading. Transient acceleration loads, such as shocks, are not as common as static loads. Analyzing these types of problems is less understood, which is the bas
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Dixit, Akash. "Damage modeling and damage detection for structures using a perturbation method." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/43575.

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This thesis is about using structural-dynamics based methods to address the existing challenges in the field of Structural Health Monitoring (SHM). Particularly, new structural-dynamics based methods are presented, to model areas of damage, to do damage diagnosis and to estimate and predict the sensitivity of structural vibration properties like natural frequencies to the presence of damage. Towards these objectives, a general analytical procedure, which yields nth-order expressions governing mode shapes and natural frequencies and for damaged elastic structures such as rods, beams, plates an
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44

Jeong, Minsoo. "Asymptotics for the maximum likelihood estimators of diffusion models." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2335.

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45

Belkhiri, Ayman. "Modélisation dynamique de la locomotion compliante : Application au vol battant bio-inspiré de l'insecte." Phd thesis, Ecole des Mines de Nantes, 2013. http://tel.archives-ouvertes.fr/tel-00874497.

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Le travail présenté dans cette thèse est consacré à la modélisation de la dynamique de locomotion des "soft robots", i.e. les systèmes multi-corps mobiles compliants. Ces compliances peuvent être localisées et considérées comme des liaisons passives du système,ou bien introduites par des flexibilités distribuées le long des corps. La dynamique de ces systèmes est modélisée en adoptant une approche Lagrangienne basée sur les outils mathématiques développés par l'école américaine de mécanique géométrique. Du point de vue algorithmique, le calcul de ces modèles dynamiques s'appuie sur un algorith
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Baxant, Radek. "Řešení stability prutových konstrukcí." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227507.

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This diploma thesis deals with the subject of slenderness bars’ stability assessment, especially in the steel structures. Before the assessment of bars in the frame constructions, we search for the influence of the computational model’s settings on the final result. The initial geometrical imperfections are examined on the model of Euler’s bar. The influence of the rigidity of girders on the poles’ buckling length is examined on the basic frame construction. The buckling lengths are assessed in the comparison with the figures we got from the statistical tables and the computational software. T
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Dona, Marco. "Static and dynamic analysis of multi-cracked beams with local and non-local elasticity." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/14893.

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The thesis presents a novel computational method for analysing the static and dynamic behaviour of a multi-damaged beam using local and non-local elasticity theories. Most of the lumped damage beam models proposed to date are based on slender beam theory in classical (local) elasticity and are limited by inaccuracies caused by the implicit assumption of the Euler-Bernoulli beam model and by the spring model itself, which simplifies the real beam behaviour around the crack. In addition, size effects and material heterogeneity cannot be taken into account using the classical elasticity theory du
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Stevens, Ben. "Short-time structural stability of compressible vortex sheets with surface tension." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:378713da-cd05-4b9a-856d-bee2b0fb47ce.

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The main purpose of this work is to prove short-time structural stability of compressible vortex sheets with surface tension. The main result can be summarised as follows. Assume we start with an initial vortex-sheet configuration which consists of two inviscid fluids with density bounded below flowing smoothly past each other, where a strictly positive fixed coefficient of surface tension produces a surface tension force across the common interface, balanced by the pressure jump. We assume the fluids are modelled by the compressible Euler equations in three space dimensions with a very genera
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Chidurala, Manohar. "Dynamic Characteristics of Biologically Inspired Hair Receptors for Unmanned Aerial Vehicles." ScholarWorks@UNO, 2015. http://scholarworks.uno.edu/td/2040.

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The highly optimized performance of nature’s creations and biological assemblies has inspired the development of their engineered counter parts that can potentially outperform conventional systems. In particular, bat wings are populated with air flow hair receptors which feedback the information about airflow over their surfaces for enhanced stability and maneuverability during their flight. The hairs in the bat wing membrane play a role in the maneuverability tasks, especially during low-speed flight. The developments of artificial hair sensors (AHS) are inspired by biological hair cells in a
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Figalli, Alessio. "Optimal transportation and action-minimizing measures." Doctoral thesis, Lyon, École normale supérieure (sciences), 2007. http://www.theses.fr/2007ENSL0422.

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