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Dissertations / Theses on the topic 'Geometric shapes'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Ruangkanjanases, Aruttapol. "Geometric shapes." Thesis, University of Iowa, 2010. https://ir.uiowa.edu/etd/590.

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I do not know what inspires me to use geometric shapes in my artwork. It may have started when I took my first jewelry and metalworking class in college. For one assignment, I had to find an artist and make an artwork that was inspired by his artworks. I choose is Sol Lewitt because I simply liked his opened cubes. Since I started studying in Jewelry and Metalwork and Sculpture at the University of Iowa, I my artworks are still based on geometric shapes. I enjoy them because they are shapes that I see around me everyday; such as textbooks, chairs, doors etc. In my thesis, I will explain my art

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2

Jackson, Todd Robert. "The geometric design of functional shapes." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/42610.

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3

Pasha, Arfath. "Geometric bin packing algorithm for arbitrary shapes." [Gainesville, Fla.] : University of Florida, 2003. http://purl.fcla.edu/fcla/etd/UFE0000907.

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4

Batt, Kathleen J. "The Implementation of kinesthetic learning activities to identify geometric shapes with preschool students." Defiance College / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=def1281535832.

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5

Al-Daccak, Mahmoud J. "Contributions to the geometric modelling of mechanical elements with complex shapes." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61756.

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6

Petridou, Maria. "Playful haptic environment for engaging visually impaired learners with geometric shapes." Thesis, University of Nottingham, 2014. http://eprints.nottingham.ac.uk/28905/.

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This thesis asserts that modern developments in technology have not been used as extensively as they could to aid blind people in their learning objectives. The same could also be said of many aspects of other areas of their lives. In particular in many countries blind students are discouraged from learning mathematics because of the intrinsically visual nature of many of the topics and particularly geometry. For many young people mathematics is also not a subject that is easily or willingly tackled. The research presented here has thus sort to answer whether a playful haptic environment could

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7

Wang, Xijun. "Geometric Trimming and Curvature Continuous Surface Blending for Aircraft Fuselage and Wing Shapes." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/31664.

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Most of the work accomplished on surface blending is based on visual trimming. In the process of visual trimming, the unwanted portion of a surface is only hidden but not removed. Geometric trimming provides a complete mathematical description of the wanted portion of the trimming surface, and generates a new mathematical surface or sets of surface patches. The new surface is intended to resemble closely the corresponding portion of the original surface. A robust procedure is developed to geometrically trim the intersecting surfaces and blend the trimmed surface patches into one new surface.

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Law, Robert Andrew. "An adaptive encoding of geometric shapes suitable for aerodynamic design using genetic algorithms." Thesis, University of Southampton, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.396772.

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9

Llamas, Paul J. (Paul Jesus). "The formation of advanced composite materials over complex geometric shapes using inflated diaphragms." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/31072.

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10

Matos, Ralha Maria Elfrida Ramos de. "A study of spatial abilities in university students." Thesis, University of Southampton, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277622.

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11

Білоус, Олена Анатоліївна, Елена Анатольевна Белоус, Olena Anatoliivna Bilous та А. В. Клименко. "Використання основних геометричних фігур при графічному розв'язанні задач з параметрами". Thesis, Вид-во СумДУ, 2008. http://essuir.sumdu.edu.ua/handle/123456789/20244.

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12

Dostert, Maria Margarethe [Verfasser], Frank [Gutachter] Vallentin, and Peter [Gutachter] Littelmann. "Geometric Packings of Non-Spherical Shapes / Maria Margarethe Dostert ; Gutachter: Frank Vallentin, Peter Littelmann." Köln : Universitäts- und Stadtbibliothek Köln, 2017. http://d-nb.info/1138027243/34.

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13

Olakoyejo, O. T. (Olabode Thomas). "Geometric optimisation of conjugate heat transfer in cooling channels with different cross-sectional shapes." Thesis, University of Pretoria, 2012. http://hdl.handle.net/2263/25484.

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In modern heat transfer, shape and geometric optimisation are new considerations in the evaluation of thermal performance. In this research, we employed constructal theory and design to present three-dimensional theoretical and numerical solutions of conjugate forced convection heat transfer in heat generating devices with cooling channels of different cross-sectional shapes. In recent times, geometric configurations of cooling channel have been found to play an important role in thermal performance. Therefore, an efficient ways of optimally designing these cooling channels shapes is required.

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14

Dostert, Maria [Verfasser], Frank [Gutachter] Vallentin, and Peter [Gutachter] Littelmann. "Geometric Packings of Non-Spherical Shapes / Maria Margarethe Dostert ; Gutachter: Frank Vallentin, Peter Littelmann." Köln : Universitäts- und Stadtbibliothek Köln, 2017. http://d-nb.info/1138027243/34.

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15

Barakat, Hanaa. "Training with positive and negative data samples, effects on a classifier for hand-drawn geometric shapes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ59360.pdf.

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16

Charon, Nicolas. "Analysis of geometric and functional shapes with extensions of currents : applications to registration and atlas estimation." Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2013. http://tel.archives-ouvertes.fr/tel-00942078.

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This thesis addresses several questions related to the recent field of computational anatomy. Broadly speaking, computational anatomy intends to analyse shape variability among populations of anatomical structures. In this work, we are focused, in the first place, on the case of datasets of curves, surfaces and more generally submanifolds. Our goal is to provide a mathematical and numerical setting to build relevant data attachment terms between those objects in the purpose of embedding it into the large diffeomorphic metric mapping (LDDMM) model for shape registration. Previous approaches hav

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17

Ploé, Patrick. "Surrogate-based optimization of hydrofoil shapes using RANS simulations." Thesis, Ecole centrale de Nantes, 2018. http://www.theses.fr/2018ECDN0012/document.

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Cette thèse présente un framework d’optimisation pour la conception hydrodynamique de forme d’hydrofoils. L’optimisation d’hydrofoil par simulation implique des objectifs d’optimisation divergents et impose des compromis contraignants en raison du coût des simulations numériques et des budgets limités généralement alloués à la conception des navires. Le framework fait appel à l’échantillonnage séquentiel et aux modèles de substitution. Un modèle prédictif est construit en utilisant la Régression par Processus Gaussien (RPG) à partir des données issues de simulations fluides effectuées sur diff

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18

Petrov, Aleksandar. "Understanding the relationships between aesthetic properties of shapes and geometric quantities of free-form curves and surfaces using Machine Learning Techniques." Thesis, Paris, ENSAM, 2016. http://www.theses.fr/2016ENAM0007/document.

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Aujourd’hui, sur le marché, on peut trouver une vaste gamme de produits différents ou des formes variées d’un même produit et ce grand assortiment fatigue les clients. Il est clair que la décision des clients d’acheter un produit dépend de l'aspect esthétique de la forme du produit et de l’affection émotionnelle. Par conséquent, il est très important de comprendre les propriétés esthétiques et de les adopter dans la conception du produit, dès le début. L'objectif de cette thèse est de proposer un cadre générique pour la cartographie des propriétés esthétiques des formes gauches en 3D en façon

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Gentry, Angela S. "Dream Scythe." Bowling Green State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1245273888.

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20

Zhang, Jinglan. "Representation, construction, evolution and retrieval of fuzzy shapes to support conceptual design." Thesis, Queensland University of Technology, 2003.

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21

Parimi, Venkata Naga Sai Krishna Janardhan, and Vamsi Eluri. "Stress Analysis of Different Shaped Holes on a Packaging Material." Thesis, Blekinge Tekniska Högskola, Institutionen för maskinteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-13613.

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In packaging industries, the demand for usage of Low Density Poly Ethylene foil is of profound interest. In the past, research was carried out on finite and infinite plates with varying crack lengths but having constant crack width. In this thesis, a detailed analysis on crack initiation is carried out on finite plates by varying width of the hole. The hole shapes for stress analysis include circle, ellipse and rectangular notch. Initially, maximum stress is found out using Linear Elastic Fracture Mechanics (LEFM) theory and compared with Finite element method (FEM) results. Secondly using Ela

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22

Nivens, Ryan Andrew, Tara Carver Peters, and Jesse Nivens. "Views of Isometric Geometry." Digital Commons @ East Tennessee State University, 2012. https://dc.etsu.edu/etsu-works/293.

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23

Merhy, Mayss'aa. "Reconnaissance de formes basée géodésiques et déformations locales de formes." Thesis, Brest, 2017. http://www.theses.fr/2017BRES0051/document.

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Les performances d’un système de reconnaissance de formes dépendent en bonne partie de la qualité de l’image segmentée. Malgré les progrès effectués, une segmentation complète (c’est-à-dire avec des contours entiers) ne peut pas être toujours atteinte. Dans un premier temps, nous nous plaçons dans le cas où seulement certaines parties de la forme entière sont disponibles. D’abord, afin d’assurer l’invariance des parties de formes aux transformations géométriques, nous développons une méthode d’optimisation de l’analyse procustéenne qui consiste à retrouver les points extrémités optimaux qui mi

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Zhu, Zuowei. "Modèles géométriques avec defauts pour la fabrication additive." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLN021/document.

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Les différentes étapes et processus de la fabrication additive (FA) induisent des erreurs de sources multiples et complexes qui soulèvent des problèmes majeurs au niveau de la qualité géométrique du produit fabriqué. Par conséquent, une modélisation effective des écarts géométriques est essentielle pour la FA. Le paradigme Skin Model Shapes (SMS) offre un cadre intégral pour la modélisation des écarts géométriques des produits manufacturés et constitue ainsi une solution efficace pour la modélisation des écarts géométriques en FA.Dans cette thèse, compte tenu de la spécificité de fabrication p

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Mwiikeni, Eramus. "An analysis of how geogebra can be used as a visualisation tool by selected teachers to develop conceptual understanding of the properties of geometric shapes in grade 9 learners: a case study in Namibia." Thesis, Rhodes University, 2017. http://hdl.handle.net/10962/6989.

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According to Rosken & Rolka (2006), learning mathematics through visualisations can be a powerful tool to explore mathematical problems and give meaning to mathematical concepts and relationships between them. “Visualisation can reduce the complexity of mathematical problems when dealing with a multitude of information” (p.458). This case study focused on using GeoGebra as a visualisation tool to teach angle properties in Grade 9 geometry. This study set out to analyse how GeoGebra visualisations can be used by selected teachers to teach for conceptual understanding. The research is based on a

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Schmidt, Julia. "GEOVIB : An Application to SupportVisually Impaired and Blind Children inFollowing Geometry Lectures." Thesis, Linnéuniversitetet, Institutionen för medieteknik (ME), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-66864.

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Inclusive education has increased in popularity over the last two decades. Inclusiveclassrooms consist of children from diverse backgrounds and with variousimpairments, with special educational needs. Children with special educationalneeds in vision require assistive tools to access visual information. Topics thatmake strong use of such information, e.g. geometry, can therefore be challengingfor children with visual impairments or blindness (VIB) as well as their teachers.Assistive tools like video magniers and physical objects in the shape ofgeometric gures are used to aid VIB in learning bas

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Lü, Lin, and 吕琳. "Geometric optimization for shape processing." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B46483640.

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28

Gil, Resina Debora. "Geometric Differential Operators for Shape Modelling." Doctoral thesis, Universitat Autònoma de Barcelona, 2004. http://hdl.handle.net/10803/3042.

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Les imatges médiques motiven la recerca en molts camps de visió per computador i processament d'imatges: filtratge, segmentació, modelat de formes, registració, recuperació i reconeixement de patrons. Degut a canvis de contrast febles i una gran diversitat d'artefactes i soroll, les tecniques basades en l'anàlisis de la geometria dels conjunts de nivell més que en la intensitat de la imatge donen resultats més robustos. Partint del tractament d'imatges intravasculars, aquesta Tesi es centra en el diseny de operadors diferencials per al procesament d'imatges basats en principis geometrics per a

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29

Zhu, Feng. "Geometric parameterisation and aerodynamic shape optimisation." Thesis, University of Sheffield, 2014. http://etheses.whiterose.ac.uk/6704/.

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Aerodynamic optimisation plays an increasingly important role in the aircraft industry. In aerodynamic optimisation, shape parameterisation is the key technique, since it determines the design space. The ideal parameterisation method should be able to provide a high level of flexibility with a low number of design variables to reduce the complexity of the design space. In this work, the Class/Shape Function Transformation (CST) method is investigated for geometric representation of an entire transport aircraft for the purpose of aerodynamic optimisation. It is then further developed for an ent

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Gorini, Luca. "Geometric shape optimization for reflective optics." Electronic Thesis or Diss., Institut polytechnique de Paris, 2024. http://www.theses.fr/2024IPPAX127.

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Dans cette thèse, nous nous intéressons au problème d'optimisation de la forme de miroirs de télescopes par la méthode de variation de frontière d'Hadamard. Pour cela, nous étudions deux modèles permettant de décrire la propagation de la lumière dans un télescope. Le premier modèle que nous considérons est un problème théorique de diffraction à fréquence finie autour d'un miroir métallique. Nous proposons une fonction coût impliquant le champ électromagnétique sur le plan focal et dont la limite hautes fréquences correspond à certains critères de qualité optique. Nous faisons intervenir dans l

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Amorim, Adriana Eloa Bento. "Formas geometricas e qualidade acustica de salas de aula : estudo de caso em Campinas-SP." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258526.

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Orientador: Stelamaris Rolla Bertoli<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo<br>Made available in DSpace on 2018-08-09T02:39:04Z (GMT). No. of bitstreams: 1 Amorim_AdrianaEloaBento_M.pdf: 15352732 bytes, checksum: 327b5fe0a18f76c48649f2007c4f4dba (MD5) Previous issue date: 2007<br>Resumo: Estudos sobre a acústica de salas de aula estão cada vez mais comuns no meio acadêmico e científico, devido à sua influência nas questões do ensino-aprendizagem. Os ambientes escolares exigem qualidade acústica que deve ser previs

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Voland, Mathieu. "Algorithmes pour la prédiction in silico d'interactions par similarité entre macromolécules biologiques." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLV014/document.

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Un médicament, ou tout autre petite molécule biologique, agit sur l’organisme via des interactions chimiques qui se produisent avec d’autres macromolécules telles que les protéines qui régissent le fonctionnement des cellules. La détermination de l’ensemble des cibles, c’est à dire de l’ensemble des macromolécules susceptibles de lier une même molécule, est essentielle pour mieux comprendre les mécanismes moléculaires à l’origine des effets d’un médicament. Cette connaissance permettrait en effet de guider la conception d’un composé pour éviter au mieux les effets secondaires indésirables, ou

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33

Veelo, Bastiaan Niels. "Variations of Shape in Industrial Geometric Models." Doctoral thesis, Norwegian University of Science and Technology, Department of Product Design, 2004. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-240.

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<p>This thesis presents an approach to free-form surface manipulations, which conceptually improves an existing CAD system that constructs surfaces by smoothly interpolating a network of intersecting curves. There are no regularity requirements on the network, which already yields superior modelling capabilities compared to systems that are based on industry-standard NURBS surfaces.</p><p>Originally, the shape of such a surface can be modified only locally by manipulating a curve in the network. In this process there is an inherent danger that the curve is being pulled away from intersections

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34

Kratt, Julian [Verfasser]. "Geometric Shape Abstraction and Simplification / Julian Kratt." Konstanz : Bibliothek der Universität Konstanz, 2018. http://d-nb.info/1162841052/34.

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35

Fonn, Eivind. "Computing Metrics on Riemannian Shape Manifolds : Geometric shape analysis made practical." Thesis, Norwegian University of Science and Technology, Department of Mathematical Sciences, 2009. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9868.

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<p>Shape analysis and recognition is a field ripe with creative solutions and innovative algorithms. We give a quick introduction to several different approaches, before basing our work on a representation introduced by Klassen et. al., considering shapes as equivalence classes of closed curves in the plane under reparametrization, and invariant under translation, rotation and scaling. We extend this to a definition for nonclosed curves, and prove a number of results, mostly concerning under which conditions on these curves the set of shapes become manifolds. We then motivate the study of geod

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36

Ahmat, Norhayati Binti. "Geometric modelling and shape optimisation of pharmaceutical tablets : geometric modelling and shape optimisation of pharmaceutical tablets using partial differential equations." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5702.

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Pharmaceutical tablets have been the most dominant form for drug delivery and they need to be strong enough to withstand external stresses due to packaging and loading conditions before use. The strength of the produced tablets, which is characterised by their compressibility and compactibility, is usually deter-mined through a physical prototype. This process is sometimes quite expensive and time consuming. Therefore, simulating this process before hand can over-come this problem. A technique for shape modelling of pharmaceutical tablets based on the use of Partial Differential Equations is p

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Ahmat, Norhayati. "Geometric modelling and shape optimisation of pharmaceutical tablets. Geometric modelling and shape optimisation of pharmaceutical tablets using partial differential equations." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5702.

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Pharmaceutical tablets have been the most dominant form for drug delivery and they need to be strong enough to withstand external stresses due to packaging and loading conditions before use. The strength of the produced tablets, which is characterised by their compressibility and compactibility, is usually deter-mined through a physical prototype. This process is sometimes quite expensive and time consuming. Therefore, simulating this process before hand can over-come this problem. A technique for shape modelling of pharmaceutical tablets based on the use of Partial Differential Equations is p

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38

Evans, Alun C. "Geometric feature distributions for shape representation and recognition." Thesis, University of Sheffield, 1994. http://etheses.whiterose.ac.uk/1890/.

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One of the fundamental problems in computer vision is the identification of objects from their shape. The research reported in this thesis is directed toward the development of a scheme for representing the shape of an object which allows it to be recognised both quickly and robustly across a wide range of viewing conditions. Given a shape described by a set of primitive elements, eg. straight line segments, the proposed scheme involves using a histogram to record the distribution of geometric features, eg. angle and distance, measured between pairs of primitives. This form of shape representa

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Ravaglia, Joris. "Reconstruction de formes tubulaires à partir de nuages de points : application à l’estimation de la géométrie forestière." Thèse, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/11791.

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Les capacités des technologies de télédétection ont augmenté exponentiellement au cours des dernières années : de nouveaux scanners fournissent maintenant une représentation géométrique de leur environnement sous la forme de nuage de points avec une précision jusqu'ici inégalée. Le traitement de nuages de points est donc devenu une discipline à part entière avec ses problématiques propres et de nombreux défis à relever. Le coeur de cette thèse porte sur la modélisation géométrique et introduit une méthode robuste d'extraction de formes tubulaires à partir de nuages de points. Nous avons choisi

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Le, Huiling. "Shape theory in flat and curved spaces and shape densities with uniform generators." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293496.

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41

Voland, Alice. "Algorithmes pour la prédiction in silico d'interactions par similarité entre macromolécules biologiques." Electronic Thesis or Diss., Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLV014.

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Un médicament, ou tout autre petite molécule biologique, agit sur l’organisme via des interactions chimiques qui se produisent avec d’autres macromolécules telles que les protéines qui régissent le fonctionnement des cellules. La détermination de l’ensemble des cibles, c’est à dire de l’ensemble des macromolécules susceptibles de lier une même molécule, est essentielle pour mieux comprendre les mécanismes moléculaires à l’origine des effets d’un médicament. Cette connaissance permettrait en effet de guider la conception d’un composé pour éviter au mieux les effets secondaires indésirables, ou

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42

Madi, Mohsen Mohamed. "Surface segmentation and shape modification for 3D geometric objects." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0025/NQ51653.pdf.

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43

Al, Shahrani Ibrahim Sulaiman A. "3D geometric morphometric analysis of tooth shape in hypodontia." Thesis, University of Newcastle Upon Tyne, 2012. http://hdl.handle.net/10443/1464.

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Assessment of tooth morphology is essential in the diagnosis and management of hypodontia patients. Several techniques have been used to quantify tooth shape in hypodontia patients and these have revealed smaller tooth dimensions and anomalous tooth shapes in these patients when compared with controls. However, previous studies have mainly used 2D images and have thus provided limited information. The present study adopted a novel three-dimensional geometric morphometric technique to quantify the crown morphology and sizes of teeth of hypodontia patients and compare them with those of control

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Forest, Collado Josep. "New Methods for Triangulation-based Shape Acquisition using Laser Scanners." Doctoral thesis, Universitat de Girona, 2004. http://hdl.handle.net/10803/7730.

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Tradicionalment, la reproducció del mon real se'ns ha mostrat a traves d'imatges planes. Aquestes imatges se solien materialitzar mitjançant pintures sobre tela o be amb dibuixos. Avui, per sort, encara podem veure pintures fetes a ma, tot i que la majoria d'imatges s'adquireixen mitjançant càmeres, i es mostren directament a una audiència, com en el cinema, la televisió o exposicions de fotografies, o be son processades per un sistema computeritzat per tal d'obtenir un resultat en particular. Aquests processaments s'apliquen en camps com en el control de qualitat industrial o be en la recerca

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Di, Fabio Barbara <1977&gt. "Shape from Functions:Enhancing Geometrical-Topological Descriptors." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1961/1/TesiDiFabioPHD.pdf.

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Di, Fabio Barbara <1977&gt. "Shape from Functions:Enhancing Geometrical-Topological Descriptors." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1961/.

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47

Loh, Angeline M. "The recovery of 3-D structure using visual texture patterns." University of Western Australia, 2006. http://theses.library.uwa.edu.au/adt-WU2006.0101.

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[Truncated abstract] One common task in Computer Vision is the estimation of three-dimensional surface shape from two-dimensional images. This task is important as a precursor to higher level tasks such as object recognition - since shape of an object gives clues to what the object is - and object modelling for graphics. Many visual cues have been suggested in the literature to provide shape information, including the shading of an object, its occluding contours (the outline of the object that slants away from the viewer) and its appearance from two or more views. If the image exhibits a signi

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48

Wenk, Carola. "Shape matching in higher dimensions." [S.l.] : [s.n.], 2003. http://www.diss.fu-berlin.de/2003/151/index.html.

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49

Varón, González Ceferino. "Shape and phylogeny." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/shape-and-phylogeny(f432d494-9755-41f9-b067-431023ad3248).html.

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Abstract:

Geometric morphometrics, the science about the study of shape, has developed much in the last twenty years. In this thesis I first study the reliability of the phylogenies built using geometric morphometrics. The effect of different evolutionary models, branch-length combinations, dimensionality and degrees of integration is explored using computer simulations. Unfortunately in the most common situations (presence of stabilizing selection, short distance between internal nodes and presence of integration) the reliability of the phylogenies is very low. Different empirical studies are analysed

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50

Gomes, Abel Joao Padrao. "Shape theory and mathematical design of a general geometric kernel through regular stratified objects." Thesis, Brunel University, 2000. http://bura.brunel.ac.uk/handle/2438/5286.

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This dissertation focuses on the mathematical design of a unified shape kernel for geometric computing, with possible applications to computer aided design (CAM) and manufacturing (CAM), solid geometric modelling, free-form modelling of curves and surfaces, feature-based modelling, finite element meshing, computer animation, etc. The generality of such a unified shape kernel grounds on a shape theory for objects in some Euclidean space. Shape does not mean herein only geometry as usual in geometric modelling, but has been extended to other contexts, e. g. topology, homotopy, convexity theory,

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