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Dissertations / Theses on the topic 'MESH POINTS'

Author: Grafiati

Published: 29 February 2024

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1

Itier, Vincent. "Nouvelles méthodes de synchronisation de nuages de points 3D pour l'insertion de données cachées." Thesis, Montpellier, 2015. http://www.theses.fr/2015MONTS017/document.

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Cette thèse aborde les problèmes liés à la protection de maillages d'objets 3D. Ces objets peuvent, par exemple, être créés à l'aide d'outil de CAD développés par la société STRATEGIES. Dans un cadre industriel, les créateurs de maillages 3D ont besoin de disposer d'outils leur permettant de vérifier l'intégrité des maillages, ou de vérifier des autorisations pour l'impression 3D par exemple. Dans ce contexte nous étudions l'insertion de données cachées dans des maillages 3D. Cette approche permet d'insérer de façon imperceptible et sécurisée de l'information dans un maillage. Il peut s'agir d

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2

Parisot, Pascaline. "Suivi d’objets dans des séquences d’images de scènes déformables : de l’importance des points d’intérêt et du maillage 2D." Thesis, Toulouse, INPT, 2009. http://www.theses.fr/2009INPT012H/document.

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Nous abordons le suivi d’objets dans des séquences d’images de scènes déformables selon deux axes de recherche. Il s’agit de déterminer les transformations d’un objet, d’une image à l’autre, lorsque celui-ci s’est éventuellement déformé ou déplacé et lorsque le point de vue de la caméra a éventuellement été modifié (déplacement, zoom...). Pour cela, nous nous sommes inspirés de l’algorithme de Jurie et Dhome qui permet de suivre un objet plan indéformable. D’une part, nous en améliorons les performances. D’autre part, nous le généralisons au cas d’objets déformables. Le premier axe de recherch

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3

Loménie, Nicolas. "Interprétation de nuages de points : application à la modélisaion d'environnements 3D en robotique mobile." Phd thesis, Université René Descartes - Paris V, 2001. http://tel.archives-ouvertes.fr/tel-00136113.

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Cette thèse traite de l'analyse de nuages de points 3D désorganisé et s'appuie sur deux outils : un algorithme de partitionnement efficace inspiré des C-moyennes floues d'une part, et des outils de filtrage morphologique de représentation à base de triangulation de Delaunay d'autre part. Le cadre applicatif essentiel est la navigation autonome en robotique mobile en environnement inconnu, c'est-à-dire dans modèle. Mais la méthodologie générique développée a été appliquée à d'autres types d'environnements, notamment plus structurés.

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Akdag, Osman. "Incompressible Flow Simulations Using Least Squares Spectral Element Method On Adaptively Refined Triangular Grids." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614944/index.pdf.

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The main purpose of this study is to develop a flow solver that employs triangular grids to solve two-dimensional, viscous, laminar, steady, incompressible flows. The flow solver is based on Least Squares Spectral Element Method (LSSEM). It has p-type adaptive mesh refinement/coarsening capability and supports p-type nonconforming element interfaces. To validate the developed flow solver several benchmark problems are studied and successful results are obtained. The performances of two different triangular nodal distributions, namely Lobatto distribution and Fekete distribution, are compared i

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5

Ben, salah Imeen. "Extraction d'un graphe de navigabilité à partir d'un nuage de points 3D enrichis." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMR070/document.

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Les caméras sont devenues de plus en plus communes dans les véhicules, les smartphones et les systèmes d'aide à la conduite ADAS (Advanced Driver Assistance Systèmes). Les domaines d'application de ces caméras dans le monde des systèmes intelligents de transport deviennent de plus en plus variés : la détection des piétons, les avertissements de franchissement de ligne, la navigation... La navigation basée sur la vision a atteint une certaine maturité durant ces dernières années grâce à l'utilisation de technologies avancées. Les systèmes de navigation basée sur la vision ont le considérable av

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6

Vasiliauskienė, Lina. "Prisitaikančiosios baigtinių elementų strategijos plokštuminiams tamprumo teorijos uždaviniams." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2006. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2006~D_20060622_134743-74080.

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The advent of modern computer technologies provided a powerful tool in numerical simulations. One of the most frequently used method for the discretization of the physical domain is Finite element Method (FEM). One of the main problems in a finite element analysis is the adequacy of the finite element mesh. Since the quality of the finite element solution directly depends on the quality of meshes, the additional process to improve the quality of meshes is necessary for reliable finite element approximation. In order to perform quality-assessed numerical simulation, the adaptive finite element

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Santoso, Mas Simon. "Simulation d'écoulements fluides à partir de données réelles." Thesis, Ecole centrale de Nantes, 2018. http://www.theses.fr/2018ECDN0011.

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Les nuages de points sont des objets mathématiques permettant de décrire de manière discrète des fonctions à plusieurs variables. Ils sont principalement utilisés dans le domaine statistique mais on les retrouve également en géométrie afin de représenter des variétés géométriques complexes. Il est aujourd'hui difficile d'intégrer les objets représentés par ces nuages de points dans des calculs éléments finis car l'intégration de ces nuages de points requiert la reconstruction de la variété ainsi que la génération d'un maillage surfacique qu'il faut intégrer dans un maillage volumique. Ces opér

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8

El, Sayed Abdul Rahman. "Traitement des objets 3D et images par les méthodes numériques sur graphes." Thesis, Normandie, 2018. http://www.theses.fr/2018NORMLH19/document.

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La détection de peau consiste à détecter les pixels correspondant à une peau humaine dans une image couleur. Les visages constituent une catégorie de stimulus importante par la richesse des informations qu’ils véhiculent car avant de reconnaître n’importe quelle personne il est indispensable de localiser et reconnaître son visage. La plupart des applications liées à la sécurité et à la biométrie reposent sur la détection de régions de peau telles que la détection de visages, le filtrage d'objets 3D pour adultes et la reconnaissance de gestes. En outre, la détection de la saillance des mailles

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9

Bouchiba, Hassan. "Contributions en traitements basés points pour le rendu et la simulation en mécanique des fluides." Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLEM076/document.

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Le nuage de points 3D est la donnée obtenue par la majorité des méthodes de numérisation surfacique actuelles. Nous nous intéressons ainsi dans cette thèse à l'utilisation de nuages de points comme unique représentation explicite de surface. Cette thèse présente deux contributions en traitements basés points. La première contribution proposée est une nouvelle méthode de rendu de nuages de points bruts et massifs par opérateurs pyramidaux en espace image. Cette nouvelle méthode s'applique aussi bien à des nuages de points d'objets scannés, que de scènes complexes. La succession d'opérateurs en

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10

Fang, Hao. "Modélisation géométrique à différent niveau de détails d'objets fabriqués par l'homme." Thesis, Université Côte d'Azur (ComUE), 2019. http://www.theses.fr/2019AZUR4002/document.

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La modélisation géométrique d'objets fabriqués par l'homme à partir de données 3D est l'un des plus grands défis de la vision par ordinateur et de l'infographie. L'objectif à long terme est de générer des modèles de type CAO de la manière la plus automatique possible. Pour atteindre cet objectif, des problèmes difficiles doivent être résolus, notamment (i) le passage à l'échelle du processus de modélisation sur des données d'entrée massives, (ii) la robustesse de la méthodologie contre des mesures d'entrées erronés, et (iii) la qualité géométrique des modèles de sortie. Les méthodes existantes

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Lee, Kai-wah, and 李啟華. "Mesh denoising and feature extraction from point cloud data." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B42664330.

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Cardote, André Amorim de Faria. "WiMax point-to-multipoint and mesh mode network planning." Master's thesis, Universidade de Aveiro, 2009. http://hdl.handle.net/10773/4003.

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Mestrado em Electrónica e Telecomunicações<br>Numa sociedade em que, crescentemente, utilizamos a Internet como meio de trabalho, lúdico ou simplesmente informativo, são necessários novos meios de levar esta tecnologia até todos, de maneira a que possamos tirar partido e evoluir com ela. Sendo a falta de cobertura dos actuais operadores de telecomunicações, em certas partes do território mais recônditas, um dos impedimentos para que toda a população possa ter ligação à Internet a preços acessíveis, o WiMAX surge como uma solução sem fios de banda larga com grande cobertura e baixo cust

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Lee, Kai-wah. "Mesh denoising and feature extraction from point cloud data." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B42664330.

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Šuľak, Andrej. "Rekonstrukce povrchu vozovky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401550.

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This thesis presents various approaches for race track surface reconstruction based on different algorithms designated for these purposes. In addition to surface reconstruction it also offers proposals for polygon mesh filling in the unscanned areas around the track.

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Wang, Yawen. "Torque Load Effect on Multi-Point Mesh and Dynamics of Right-angle Geared Drives." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1384870250.

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Yanagita, Tamaki. "MESH-FREE MODELING OF ULTRASONIC FIELDS GENERATED BY TRANSDUCERS AND ACOUSTIC MICROSCOPES." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/195234.

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With the gain in momentum of the structural health monitoring field in the last two decades, the popularity of ultrasonic nondestructive testing (NDT) has grown. However, ultrasonic NDT requires an expert to perform the testing and can be time consuming and costly when measured wave patterns in testing become extremely complex. A computer simulation of these tests can be utilized as a guide during actual evaluations or as a tool to train technicians. Presented in this dissertation is the development of models which simulate such acoustic phenomena as may arise in NDT. These models were develop

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Brown, Steven W. "Interactive Part Selection for Mesh and Point Models Using Hierarchical Graph-cut Partitioning." Diss., CLICK HERE for online access, 2008. http://contentdm.lib.byu.edu/ETD/image/etd2420.pdf.

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Mbayi, Charles K. "Efficient Variable Mesh Techniques to solve Interior Layer Problems." University of Western Cape, 2020. http://hdl.handle.net/11394/7324.

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Philosophiae Doctor - PhD<br>Singularly perturbed problems have been studied extensively over the past few years from different perspectives. The recent research has focussed on the problems whose solutions possess interior layers. These interior layers appear in the interior of the domain, location of which is difficult to determine a-priori and hence making it difficult to investigate these problems analytically. This explains the need for approximation methods to gain some insight into the behaviour of the solution of such problems. Keeping this in mind, in this thesis we would like

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Liu, Yong-Jin. "Complex shape modeling with point sampled geometry /." View abstract or full-text, 2003. http://library.ust.hk/cgi/db/thesis.pl?MECH%202003%20LIUY.

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Joshi, Shriyanka. "Reverse Engineering of 3-D Point Cloud into NURBS Geometry." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1595849563494564.

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Azeredo, Daniel Mendes. "Simulação numérica de uma função indicadora de fluidos tridimensional empregando refinamento adaptativo de malhas." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/45/45132/tde-15082013-160020/.

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No presente trabalho, utilizou-se o Método da Fronteira Imersa, o qual utiliza dois tipos de malhas computacionais: euleriana (utilizada para o fluido) e lagrangiana (utilizada para representar a interface de separação de dois fluidos). O software livre GMSH foi utilizado para representar um sólido por meio da sua superfície externa e também para gerar uma malha triangular, bidimensional e não estruturada para discretizar essa superfície. Essa superfície foi utilizada como condição inicial para a malha lagrangiana (fronteira imersa). Os dados da malha lagrangiana são armazenados em uma estr

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Raška, Martin. "Mobile IP v sítích MANET." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218096.

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This thesis discuss about the problem with mobility of stations in IP networks, concretely protocol Mobile IP and about the problems with this protocol in MANET networks, with the scope on Motorola MESH. First part is about design integration of protocol Mobile IP in this networks with usage Tropos 5210 MetroMesh routers and Cisco components (router, switch) to design and configure wireless MESH network, than connect this network with Cisco components and try to implement Mobile IP into this network. Second part is about design and configure wireless network from Cisco Wireless Access Points a

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Ellyson, Laura Jean. "Resource Intensification of Small Game Use at Goodman Point, Southwestern Colorado." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc699883/.

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This analysis of faunal remains from eleven archaeological sites in the northern San Juan region, extensively occupied by the Ancestral Pueblo people until they leave the region by AD 1300, explores the effects of resource intensification of small wild and domestic resources leading up to this regional depopulation. By examining multiple lines of evidence, in addition to faunal abundance, causal factors are identified to address changes in abundances through time. In particular, age- and sex-based mortality are examined for lagomorphs (jackrabbits and cottontails) and domesticated turkey, resp

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Mojžyšek, Tomáš. "Možnosti vytvoření mračna bodů a síťového modelu místa dopravní nehody z fotografií." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399590.

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The thesis focuses on creating point cloud and mesh model of chosen intersections and their applications in forensic-engineering praxis. In the first part, we describe a workflow for creating point cloud and mesh model of intersection by digital photogrammetry. In the second part, we applied these at chosen intersections. Which leads us to the comparison of three digital photogrammetric programs which we used to make point clouds and mesh models. At the end of thesis, we use our mesh models in forensic-engineering praxis and we decide about barriers in sign conditions at intersections.

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Kolářová, Eva. "Vliv přídavku vícesměrně orientované výztuže na mechanické vlastnosti materiálu pro přípravu celkově snímatelných náhrad." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2014. http://www.nusl.cz/ntk/nusl-217087.

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Tato Diplomová práce se zabývá vlivem vyztužení na mechanické vlastnosti materiálu pro přípravu snímatelných náhrad. Pro testování byly použity tři sady vzorků: PMMA pryskyřice, PMMA pryskyřice s Dentapreg Mesh výztuží a PMMA pryskyřice vyztužena zesilující síťkou z nerezové oceli.Pro měření chování vzorků při statickém a dynamickém namáhání byl použit třibodový ohybový test a Charpy rázové kladivo. Viskoelastické vlastnostzi byly měřeny dynamicko-mechanickou analýzou (DMA). Skenovací elektronová mikroskopie (SEM) byla použita k charakterizaci lomových ploch. Během statického namáhání vzorků v

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Lounsbury, Robert Lee. "Optimum antenna configuration for maximizing access point range of an IEEE 802.11 wireless mesh network in support of multi-mission operations relative to hastily formed scalable deployments." Thesis, Monterey, Calif. : Naval Postgraduate School, 2007. http://bosun.nps.edu/uhtbin/hyperion-image.exe/07Sep%5FLounsbury.pdf.

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Thesis (M.S. in Systems Technology (Command, Control, and Communications (C3)))--Naval Postgraduate School, September 2007.<br>Thesis Advisor(s): Ehlert, James. "September 2007." Description based on title screen as viewed on Oct. 23, 2007. Includes bibliographical references (p. 85-86). Also available in print.

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Lounsbury, Jr Robert L. "Optimum Antenna Configuration for Maximizing Access Point Range of an IEEE 802.11 Wireless Mesh Network in Support of Multi-Mission Operations Relative to Hastily Formed Scalable Deployments." Ft. Belvoir : Defense Technical Information Center, 2007. http://handle.dtic.mil/100.2/ADA474138.

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Fier, Jeffrey Michael Keller Herbert Bishop Keller Herbert Bishop. "Part I. Fold continuation and the flow between rotating, coaxial disks. : Part II. Equilibrium chaos. Part III. A mesh selection algorithm for two-point boundary value problems /." Diss., Pasadena, Calif. : California Institute of Technology, 1985. http://resolver.caltech.edu/CaltechETD:etd-03262008-150456.

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Nyman, Jonas. "Faster Environment Modelling and Integration into Virtual Reality Simulations." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-19800.

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The use of virtual reality in engineering tasks, such as in virtual commissioning, has increased steadily in recent years, where a robot, machine or object of interest can be simulated and visualized. Yet, for a more immerse experience, an environment for the object in question needs to be constructed. However, the process for creatingan accurate environment, for a virtual simulation have remained a costly and a long endeavour. Because of this, many digital simulations are performed, either with no environment at all, or present a very basic and abstract representation of an intended environme

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Ruest-Paquette, Anne-Sophie. "Le poids des représentations sociales: Les répercussions identitaires et sociales de mes expériences socioscolaires." Thesis, University of Ottawa (Canada), 2009. http://hdl.handle.net/10393/28103.

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Ce voyage autonarratif fait état des répercussions identitaires et sociales de mes expériences à titre de cible d'intimidation à l'école élémentaire (1986 à 1994) et secondaire (1994 à 1999), lesquelles étaient imbriquées des représentations sociales de la beauté féminine et des orientations sexuelles alternatives. La théorie de l'expérience de Dewey (1947/1968) en est l'encre puisqu'elle englobe tous les éléments qui sont essentiels à ma recherche: l'interaction et l'environnement social qui assurent la production, le développement et la reproduction des représentations sociales et des normes

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Hoffman, Amy Susan. "Faunal Exploitation during the Depopulation of the Mesa Verde Region (A. D. 1300): A Case Study of Goodman Point Pueblo (5MT604)." Thesis, University of North Texas, 2011. https://digital.library.unt.edu/ark:/67531/metadc84216/.

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This analysis of faunal remains from Goodman Point Pueblo (5MT604), a large village occupied just before the ancestral Puebloans permanently left southwestern Colorado at the end of the thirteenth century, explores the effect of dietary stress during abandonment in the Four Corners region. As archaeologists, we interpret what these former cultures were like and what resources they used through what they left behind. By specifically looking at faunal remains, or remains from food resources, environmental change and dietary stress can be assessed. Identifications of taxa identified at Goodman Po

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Kjellén, Kevin. "Point Cloud Registration in Augmented Reality using the Microsoft HoloLens." Thesis, Linköpings universitet, Datorseende, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-148901.

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When a Time-of-Flight (ToF) depth camera is used to monitor a region of interest, it has to be mounted correctly and have information regarding its position. Manual configuration currently require managing captured 3D ToF data in a 2D environment, which limits the user and might give rise to errors due to misinterpretation of the data. This thesis investigates if a real time 3D reconstruction mesh from a Microsoft HoloLens can be used as a target for point cloud registration using the ToF data, thus configuring the camera autonomously. Three registration algorithms, Fast Global Registration (F

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Winstead, Christy. "The Use of Faunal Remains for Identifying Shifts in Pit Structure Function in the Mesa Verde Region: a Case Study From Goodman Point." Thesis, University of North Texas, 2015. https://digital.library.unt.edu/ark:/67531/metadc804909/.

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The archaeofaunal remains left by the Ancestral Puebloan people of Goodman Point Unit provides a valuable, yet underutilized resource into pit structure function. This thesis explores temporal changes in pit structure use and evaluates if a final feast occurred during a kiva decommissioning. The results from zooarchaeological analyses of a pithouse and two great kivas suggest that changes in pit structures at Goodman Point mimic the regional trend toward specialization until late Pueblo III. Cross-cultural studies on feasts, southwest ethnographies and previous zooarchaeological work establish

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Kroupa, Ondřej. "Digitální model reliéfu v areálu Admas." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-390213.

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The goal of this thesis is to scan part of the complex research center AdMaS using terrestrial laser scanner, from obtained data draw up a 3D terrain model and compare the height accuracy with conventional terrestrial measurement. The thesis is focused to software, which allow processing of point clouds and prepare the 3D model. The output of this work is the 3D terrain model and two transverse profiles for vertical comparison of two measurement methods.

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Silva, Alysson Alexander Naves. "Simulação numérica de escoamentos bidimensionais com superfícies livres e linhas de contato dinâmicas." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-22062010-145307/.

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Um método lagrangeano-euleriano arbitrário para a resolução de escoamentos dominados por tensão superficial é apresentado neste trabalho. Tais escoamentos são importantes em muitas aplicações, especialmente em canais capilares que frequentemente aparecem em escoamentos em microescala. A resolução deste tipo de escoamento apresenta vários desafios que são abordados neste trabalho. O escoamento é resolvido somente para a fase líquida, com condições de contorno apropriadas para a superfície livre que delimita o líquido e o gás, que é representada por arestas e vértices da malha computacional. Est

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Vitula, Marek. "Dokumentace části hradu Rokštejn pomocí laserového skenování." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-390174.

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The goal of this thesis is to scan part of castle Rokštejn using terrestrial laser scanner and from obtained data draw up a 3D model. Model is made with a method using meshing. In this work I also deal with the software, which supports meshing, and evaluating pros and cons of each program. The output of this work is 3D model which will serve to better representation of the current state of the castle and its better documentation.

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Brown, Andrew D. "Looking Outward from the Village: The Contingencies of Soil Moisture on the Prehistoric Farmed Landscape near Goodman Point Pueblo." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc862755/.

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Ancestral Pueblo communities of the central Mesa Verde region (CMVR) became increasingly reliant on agriculture for their subsistence needs during Basketmaker III (BMIII) through Terminal Pueblo III (TPIII) (AD 600–1300) periods. Researchers have been studying the Ancestral Pueblo people for over a century using a variety of methods to understand the relationships between climate, agriculture, population, and settlement patterns. While these methods and research have produced a well-developed cultural history of the region, studies at a smaller scale are still needed to understand the changes

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Yogeswaran, Arjun. "3D Surface Analysis for the Automated Detection of Deformations on Automotive Panels." Thèse, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/19992.

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This thesis examines an automated method to detect surface deformations on automotive panels for the purpose of quality control along a manufacturing assembly line. Automation in the automotive manufacturing industry is becoming more prominent, but quality control is still largely performed by human workers. Quality control is important in the context of automotive body panels as deformations can occur along the assembly line such as inadequate handling of parts or tools around a vehicle during assembly, rack storage, and shipping from subcontractors. These defects are currently identified and

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Noreikis, Marius. "Image Based Indoor Navigation." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-177344.

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Over the last years researchers proposed numerous indoor localisation and navigation systems. However, solutions that use WiFi or Radio Frequency Identification require infrastructure to be deployed in the navigation area and infrastructureless techniques, e.g. the ones based on mobile cell ID or dead reckoning suffer from large accuracy errors. In this Thesis, we present a novel approach of infrastructure-less indoor navigation system based on computer vision Structure from Motion techniques. We implemented a prototype localisation and navigation system which can build a navigation map using

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Tournier, Nicolas. "Synchronisation pour l'insertion de données dans des maillages 3D." Thesis, Montpellier 2, 2014. http://www.theses.fr/2014MON20221/document.

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De nos jours la protection des données numériques est un problème très important. Que ce soit pour des applications de confidentialité, de communication, de traçabilité ou d'identification par exemple, il est nécessaire de développer des techniques adaptées. Dans le cadre de cette thèse en collaboration avec la société STRATEGIES S.A., la méthode choisie pour la protection de maillages 3D est l'insertion de données cachées, également appelée tatouage numérique. Pour des données 3D, un des problèmes les plus importants est la phase de synchronisation qui intervient dans les algorithmes d'insert

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Neeli, Yeshwanth Sai. "Use of Photogrammetry Aided Damage Detection for Residual Strength Estimation of Corrosion Damaged Prestressed Concrete Bridge Girders." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/99445.

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Corrosion damage reduces the load-carrying capacity of bridges which poses a threat to passenger safety. The objective of this research was to reduce the resources involved in conventional bridge inspections which are an important tool in the condition assessment of bridges and to help in determining if live load testing is necessary. This research proposes a framework to link semi-automated damage detection on prestressed concrete bridge girders with the estimation of their residual flexural capacity. The framework was implemented on four full-scale corrosion damaged girders from decommission

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Chater, Rabah. "Etude des antimonites MeSb 2 O 4 à basse température : évolution structurale, thermodynamique, propriétés élastiques et magnétiques anisotropes ; modélisation." Paris 6, 1986. http://www.theses.fr/1986PA066219.

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Etude par diffraction des RX et de neutrons, spectroscopie Raman et IR, chaleur massique, susceptibilité magnétique des antimonites (MNNifezn)sb2o4. Interprétation quantitative des anomalies de dilatation liées à Tltn dans le cas des composés de Ma et Fe. Définition d'un champ de force cohérent avec un potentiel de paires simplifié.

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Doležal, Jan. "Minimalizace vlivu rušení na bezdrátovou síť." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217521.

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This thesis is concerned the technology with technologies of transfer through wireless devices. It is about possibilities of optimization of transfer in wireless net, especially of the reduction of interference influence. The first part is about theory and the standards development of wireless technology. There are methods and principles used in wireless technologies. The second part is a practical measuring and testing of an internal wireless net, with the emphasis being on the source of interference influence. Measuring was focused on interference between access points and was not about mete

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Diouf, Abdoulaye. "Influence du régime des feux d'aménagement sur la structure ligneuse des savanes nord-soudaniennes dans le Parc du W, Sud Ouest Niger." Doctoral thesis, Universite Libre de Bruxelles, 2012. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209610.

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L'équilibre arbre-herbe dans la savane tropicale est reconnu comme l'une des principales<p>énigmes de l'écologie des plantes. Les origines du difficile équilibre entre ces formes de vie<p>sur des dizaines de millions de kilomètres carrés à l'échelle mondiale sont en partie attribuées<p>aux perturbations fréquentes induites par les feux de végétation dont les effets varient dans<p>l'espace et dans le temps selon les conditions environnementales. Les résultats de recherche<p>dépendent de l’échelle et les conclusions tirées d’études locales sont rarement transposables à<p>d’autres échelles. La qu

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"Robust and parallel mesh reconstruction from unoriented noisy points." 2009. http://library.cuhk.edu.hk/record=b5896897.

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Sheung, Hoi.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2009.<br>Includes bibliographical references (p. 65-70).<br>Abstract also in Chinese.<br>Abstract --- p.v<br>Acknowledgements --- p.ix<br>List of Figures --- p.xiii<br>List of Tables --- p.xv<br>Chapter 1 --- Introduction --- p.1<br>Chapter 1.1 --- Main Contributions --- p.3<br>Chapter 1.2 --- Outline --- p.3<br>Chapter 2 --- Related Work --- p.5<br>Chapter 2.1 --- Volumetric reconstruction --- p.5<br>Chapter 2.2 --- Combinatorial approaches --- p.6<br>Chapter 2.3 --- Robust statistics in surface reconstruction --- p

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Liu, L., Y. Sheng, G. Zhang, and Hassan Ugail. "Graph Cut Based Mesh Segmentation Using Feature Points and Geodesic Distance." 2015. http://hdl.handle.net/10454/8220.

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No<br>Both prominent feature points and geodesic distance are key factors for mesh segmentation. With these two factors, this paper proposes a graph cut based mesh segmentation method. The mesh is first preprocessed by Laplacian smoothing. According to the Gaussian curvature, candidate feature points are then selected by a predefined threshold. With DBSCAN (Density-Based Spatial Clustering of Application with Noise), the selected candidate points are separated into some clusters, and the points with the maximum curvature in every cluster are regarded as the final feature points. We la

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Lee, Pai-Feng, and 李白峰. "Reconstruct Object Triangular Mesh by Using Spatial Points Cluster characteristics on Surface." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/7xt9bh.

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碩士<br>中原大學<br>資訊工程研究所<br>91<br>Recently, the fast progress of computer technology and cost down of prices progressively, “Virtual Reality” becomes so popular. Many scenes of objects are displayed by 3D’s form, there are almost real effect, such as 3D (three dimension) architecture 、the introduction and trial of merchandise on line. Many object models are necessary to display a scene. Unfortunately, only a little objects of the real world have built its digital form. Therefore users must create digital objects by themselves. To create a digital object, user can use surface reconstruction. It be

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Lun, Huang-Kuan, and 黃冠綸. "Optical Design and Simulation for UV Curing Mesh Points on Light Guide Plate." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/86180206234567689677.

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碩士<br>國立中興大學<br>精密工程學系所<br>102<br>The thesis focuses on developing a high-luminance and thin light guide plate. The research studies a light guide plate in a size of 8 inches with a thickness of 0.6mm and provided with a superficial microstructure of mesh point. The research hereof mainly discusses the optical effect caused by alight guide plate under a back light module in the manufacturing method of Roll-to-Roll with continuous UV curing, while the light guide plate is made of a substrate with high light guidance PC material and processed with an UV coating having different refractive index.

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Han, Jiajia. "Point-to-Point Traffic in Wireless Mesh Networks." Thesis, 2010. http://hdl.handle.net/10012/5319.

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Although most work on Wireless Mesh Networks (WMNs) has focused on traffic flowing in and out of the network via gateways, traffic within the WMN may also be significant in many environments. This point-to-point (P2P) traffic between the nodes within WMN can be handled in different ways, particularly in WMNs containing multiple gateways. The approach used affects the performance of both the P2P flows and other traffic in the network. This work studies the impact of handling P2P traffic in the presence of gateways and gateway traffic. Through mathematical analysis of the resulting traffic patte

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Wang, Sheng-Wen, and 王聖文. "Regular Mesh Reconstruction from Unorganized Point Cloud." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/44093762722330302491.

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碩士<br>中原大學<br>資訊工程研究所<br>98<br>For a regular mesh model, typically constructing a model that usually using two steps model reconstruction and remesh. First unorganized point cloud can be created by 3D scanner. Through point-based reconstruction technique, we can make a model approximate the original object. But the mesh of model always be irregular. Therefore, the second step remesh, adjusting the mesh of model and resampling the point cloud to make the final mesh more regular. For mesh, not only model reconstruction but also remesh, both of them would create a mesh model finally. The differ

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