Exploració per tema "Geometry"

Ara es mostren els items 1-20 de 142

    • A configurable geometry processing system 

      Fons Sánchez, Joan (Universitat Politècnica de Catalunya, 2019-10)
      Projecte Final de Màster Oficial
      Accés obert
      Design and development of Meshpipe, a simple tool designed to speed up the process of mesh processing pipeline development. It includes a Python API for rapid prototyping as well as a 3D viewer environment to easily inspect ...

    • A geometric approach to dense Cayley digraphs of finite Abelian groups 

      Aguiló Gost, Francisco de Asis L.; Fiol Mora, Miquel Àngel; Pérez Mansilla, Sonia (2016)
      Article
      Accés obert
      We give a method for constructing infinite families of dense (or eventually likely dense) Cayley digraphs of finite Abelian groups. The diameter of the digraphs is obtained by means of the related minimum distance diagrams. ...

    • A geometric bridge between regularised damage and energetically equivalent cracks 

      Tamayo Mas, Elena; Rodríguez Ferran, Antonio (2012)
      Text en actes de congrés
      Accés obert
      In order to achieve a better characterisation of a whole failure process, models which combine damage and fracture mechanics have recently been proposed. Here, a new combined methodology is presented: in order to describe ...

    • A geometric proxy of economic uncertainty based on the disagreement in survey expectations 

      Claveria González, Oscar; Monte Moreno, Enrique; Torra Porras, Salvador (2018)
      Comunicació de congrés
      Accés obert
      In this study we present a geometric approach to proxy economic uncertainty. We design a positional indicator of disagreement among survey-based agents' expectations about the state of the economy. Previous dispersion-based ...

    • A new method for ionospheric tomography and its assessment by ionosonde electron density, GPS TEC, and single-frequency PPP 

      Prol, Fabricio dos Santos; Camargo, Paulo de Oliveira; Hernández Pajares, Manuel; Honorato Muella, Marcio Tadeu de Assis (Institute of Electrical and Electronics Engineers (IEEE), 2019-01-05)
      Article
      Accés obert
      A new tomographic method was developed with the main goal of mapping the ionosphere in the region of Brazil. The ionospheric background was estimated based on ionosonde and radio-occultation measurements to overcome the ...

    • A new multisymplectic unified formalism for second order classical field theories 

      Prieto Martínez, Pedro Daniel; Román Roy, Narciso (American Institute of Mathematical Sciences, 2015-06-01)
      Article
      Accés obert
      We present a new multisymplectic framework for second-order classical field theories which is based on an extension of the unified LagrangianHamiltonian formalism to these kinds of systems. This model provides a straightforward ...

    • A sensibility analysis to geometric and cutting conditions using the particle finite element method (PFEM) 

      Rodriguez Prieto, Juan Manuel; Arrazola, Pedro; Cante Terán, Juan Carlos; Kortabarria, Arratibel; Oliver Olivella, Xavier (Red Hook, 2013)
      Text en actes de congrés
      Accés obert
      The (PFEM) is employed to simulate orthogonal metal cutting of 42CD4 steel. The objectives of this work are mainly three: The first one is to validate PFEM strategies as an efficient tool for numerical simulation of metal ...

    • Abstract design methodologies: non-euclidean and extrinsic design 

      Adell Mill, Jan (Universitat Politècnica de Catalunya, 2022-07-12)
      Treball Final de Grau
      Accés obert
      This thesis is aimed at the study and practical reproduction of video game design methodologies which, as it stands today, are ambiguous in their classification or without a general consensus in their use. Specifically, ...

    • Ampliación al espacio de una aplicación de la integración en el campo complejo para la solución de una cuestión de informática gráfica 

      Lerma Usero, Miguel Ángel (Institut d'Estadística de Catalunya, 1992)
      Article
      Accés obert
      El teorema de los residuos de Cauchy sirve como base para un algoritmo que permite determinar la posición relativa de un punto respecto a una curva cerrada simple. La ampliación de este método al espacio tropieza con la ...

    • An approximation of the K-function for the study of binary images 

      Ayala Gallego, Guillermo; Simó Vidal, Amelia (Institut d'estadística de Catalunya, 1993)
      Article
      Accés obert
      Jensen et al. (1990) gave an exact expression for the K-function in non-overlapping Boolean models. The present study proposes and evaluates an approximate expression for the K-function in overlapping isotropic Boolean ...

    • Analysing the influence of geometry and pressure on corona discharges 

      Riba Ruiz, Jordi-Roger; Bas Calopa, Pau; Moreno Eguilaz, Juan Manuel (2022-06-14)
      Article
      Accés obert
      In this work, the authors propose an experiment aimed for undergraduate laboratories with the aim of introducing different novelties as a topic for practical sessions or student projects. The topics here investigated are ...

    • Aprendizaje basado en proyectos: estudio de casos reales en la asignatura de Geometría 

      Quintilla Castán, Marta (Universitat Politècnica de Catalunya. Iniciativa Digital Politècnica, 2023-11-09)
      Text en actes de congrés
      Accés obert
      First-year propaedeutic subjects such as Descriptive Geometry are perceived by students as the acquisition of an initial instrumental knowledge, without a direct application in their professional work. Contrary to what ...

    • Arcs in finite projective spaces 

      Ball, Simeon Michael; Lavrauw, Michel (2019-11-23)
      Article
      Accés restringit per política de l'editorial
      This is an expository article detailing results concerning large arcs in finite projective spaces. It is not strictly a survey but attempts to cover the most relevant results on arcs, simplifying and unifying proofs of ...

    • Arcs, linear sets and hermitian curves in the finite projective plane 

      Jofre Senciales, Jordi (Universitat Politècnica de Catalunya, 2018-09)
      Treball Final de Grau
      Accés obert
      The main object of the study of this thesis are arcs in PG(2,q2). An arc in PG(2,q2) is set of points with the property that every line intersects with the arc in at most 2 points. One can prove that an arc in PG(2,q2) has ...

    • Arquitectura en cuatro dimensiones 

      Barceló Garcia, Miquel (2006-11)
      Article
      Accés obert

    • Art and math using a equally linked tetrahedron 

      Moreno Lupiáñez, Manuel; Tarrés, Josep; Sánchez Cuenca, Luis; Vinyes, Toni (2019)
      Comunicació de congrés
      Accés obert
      The tetrahedron is a well-known polyhedron. The tetrahedron can be shown with a set of lines (bars) made of 3 points (joints) from the different elements; for instance an edge is a line of 2 vertices and the same edge. The ...

    • Art and Mathematics: a Second Series of Movies 

      Emmer, Michele (1984)
      Article
      Accés obert
      Une première série de films sur le thème “L'art et les mathématiques” fut complétée en 1980. Une présentation en fut faite dans un article précédent [1]. Puisque le concept général de la nouvelle série de films est exactement ...

    • Assessment of mmwave handset arrays in the presence of the user body 

      Ballesteros Sánchez, Christian; Vähä-Savo, Lauri; Haneda, Katsuyuki; Icheln, Clemens; Romeu Robert, Jordi; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2021-01-01)
      Article
      Accés obert
      The emergence of mobile terminals operating at millimeter-wave frequencies necessitates the ability to evaluate the effect the environment, and in particular, users have on their radiation properties. Some studies evaluated ...

    • Automatic Penalty and Degree Continuation for Parallel Pre-Conditioned Mesh Curving on Virtual Geometry 

      Ruiz-Gironés, Eloi; Roca, Xevi (Elsevier, 2022)
      Article
      Accés obert
      We present a distributed parallel mesh curving method for virtual geometry. The main application is to generate large-scale curved meshes on complex geometry suitable for analysis with unstructured high-order methods. ...

    • Average power prediction in microcells 

      Ruiz Boqué, Sílvia; Fernández, M (Institute of Electrical and Electronics Engineers (IEEE), 1994)
      Text en actes de congrés
      Accés obert
      A propagation model to estimate the average received power in an urban microcell environment has been developed. This model can be used both in line of sight (LOS) and non line of sight (NLOS) conditions in any regular or ...