Ara es mostren els items 1979-1998 de 94837

  • A Force-based Approach for Joint Efforts Estimation During the Double Support Phase of Gait 

    Pàmies Vila, Rosa; Cuadrado, Javier; Lugrís, Urbano; Alonso, Francisco Javier (Elsevier, 2011)
    Comunicació de congrés
    Accés restringit per política de l'editorial
  • A forma e evolução urbanas de núcleos marítimos portugueses no início do seculo XX: a influência da indústria de conservas no desenho territorial 

    Leitão, Cristina Luís (Departament d’Urbanisme i Ordenació del Territori. Universitat Politècnica de Catalunya / Maestría en Planeación Urbana y Regional. Pontificia Universidad Javeriana de Bogotá, 2014-06)
    Text en actes de congrés
    Accés obert
    A análise da forma e evolução urbanas é o caminho para a compreensão da própria cidade, e obriga quase sempre a uma avaliação própria do que concerne ao método e ferramentas de análise, focada em cada situação e descartando ...
  • A formal analisys of the computational dynamics in GIGANTEC 

    Badr, Amr (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2001)
    Article
    Accés obert
    An evolutionary algorithm formalism has been forwarded in a previous research, and implemented in the system GIGANTEC: Genetic Induction for General Analytical Non-numeric Task Evolution Compiler [Bad98][Bad99]. A dynamical ...
  • A formal context for acyclic join dependencies 

    Baixeries i Juvillà, Jaume (2017)
    Article
    Accés obert
    Acyclic Join Dependencies (AJD) play a crucial role in database design and normalization. In this paper, we use Formal Concept Analysis (FCA) to characterize a set of AJDs that hold in a given dataset. This present work ...
  • A Formal framework for theory learning using description logics 

    Alvarez Canal, Jordi (2000-07)
    Report de recerca
    Accés obert
    This paper introduces a formal base in order to talk about theory learning from a Description Logics (DL) perspective. A probabilistic Description Logics is introduced; and its need is intuitively justified. Theory learning ...
  • A formal method for conceptual fit analysis 

    Olivé Ramon, Antoni (2016-01)
    Article
    Accés obert
    One criterion that has received little attention in COTS systems selection is what we call conceptual fit. The criterion assesses the fit between the conceptual structure of the user requirements and that of a candidate ...
  • A Formal method for the synthesis of update transactions in deductive databases without existential rules 

    Pastor Collado, Juan Antonio (1994-04)
    Report de recerca
    Accés obert
    We propose a new method for generating consistency-preserving transaction programs for (view-)updates in deductive databases. The method augments the deductive database schema with a set of transition and internal event ...
  • A formula for the Kirchhoff index 

    Bendito Pérez, Enrique; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Gesto Beiroa, José Manuel (2007-09-30)
    Article
    Accés obert
    We show here that the Kirchhoff index of a network is the average of the Wiener capacities of its vertices. Moreover, we obtain a closed-form formula for the effective resistance between any pair of vertices when the ...
  • A four-noded quadrilateral element for composite laminated plates/shells using the refined zigzag theory 

    Eijo, Ariel; Oñate Ibáñez de Navarra, Eugenio; Oller Martínez, Sergio Horacio (John Wiley & Sons, 2013-05-20)
    Article
    Accés restringit per política de l'editorial
    A new bilinear four-noded quadrilateral element (called quadrilateral linear refined zigzag) for the analysis of composite laminated and sandwich plates/shells based on the refined zigzag theory is presented. The element ...
  • A fractal fragmentation model for rockfalls 

    Ruiz Carulla, Roger; Corominas Dulcet, Jordi; Mavrouli, Olga Christina (2017-06)
    Article
    Accés restringit per política de l'editorial
    The impact-induced rock mass fragmentation in a rockfall is analyzed by comparing the in situ block size distribution (IBSD) of the rock mass detached from the cliff face and the resultant rockfall block size distribution ...
  • A fractal model to describe the evolution of multiphase flow properties during mineral dissolution 

    Guarracino, Luis; Roetting, Tobias Stefan; Carrera Ramírez, Jesús (Elsevier, 2014-05-01)
    Article
    Accés restringit per política de l'editorial
    Understanding the changes in multiphase flow parameters caused by mineral dissolution-precipitation is required for multiple applications ranging from geological storage of CO2, enhanced geothermal energy production or ...
  • A fractional-step method for the incompressible Navier-Stokes equations related to a predictor-multicorrector algorithm 

    Blasco Lorente, Jorge; Codina, Ramon; Huerta, Antonio (1998-12)
    Article
    Accés obert
    An implicit fractional-step method for the numerical solution of the time-dependent incompressible Navier-Stokes equations in primitive variables is studied in this paper. The method, which is first-order-accurate in the ...
  • A frame element model for the analysis of reinforced concrete structures under shear and bending 

    Mohr, Stefen; Bairán García, Jesús Miguel; Marí Bernat, Antonio Ricardo (2010-10-01)
    Article
    Accés restringit per política de l'editorial
    Modeling the response of reinforced concrete structures under combined shear and normal forces involves handling the anisotropic behavior that takes place in the post-cracked and ultimate ranges. Current 2D (plane-stress ...
  • A Frame-dependent oracle for linear hierarchical radiosity: a step towards frame-to-frame 

    Martín Campos, Ignacio Clemente; Tost Pardell, Daniela; Pueyo Sánchez, Xavier (1996-01)
    Report de recerca
    Accés obert
    A frame-based oracle for Hierarchical Radiosity (HR) is proposed which takes into account the Gouraud shading interpolated intensity values mapped from the radiosities. The algorithm is based on a linear approximation ...
  • A framework based on a fittingness factor to enable efficient exploitation of spectrum opportunities in cognitive radio networks 

    Bouali, Faouzi; Sallent Roig, José Oriol; Pérez Romero, Jordi; Agustí Comes, Ramon (2011)
    Text en actes de congrés
    Accés obert
    In order to increase CRs (Cognitive Radios) operation efficiency, there has been an interest in increasing awareness level about spectrum utilisation. In this respect, this paper proposes a new fittingness factor concept ...
  • A Framework for animation in global illumination environments 

    Martín Campos, Ignacio Clemente; Pueyo, X; Tost Pardell, Daniela (1998-06)
    Text en actes de congrés
    Accés obert
    This paper proposes a framework for the production of animations of high quality radiosity environments which makes use of the a-priori knowledge of the dynamic properties of the scene in order to exploit temporal ...
  • A framework for building OLAP cubes on graphs 

    Ghrab, Amine; Romero Moral, Óscar; Skhiri, Sabri; Vaisman, Alejandro; Zimányi, Esteban (Springer, 2015)
    Text en actes de congrés
    Accés obert
    Graphs are widespread structures providing a powerful abstraction for modeling networked data. Large and complex graphs have emerged in various domains such as social networks, bioinformatics, and chemical data. However, ...
  • A framework for designing new products and services 

    Huertas Garcia, Rubén; Consolación Segura, Carolina María (2009)
    Article
    Accés restringit per política de l'editorial
    Customer satisfaction is an important objective in all areas of business and services. A key issue in today's design activities is to achieve customer satisfaction in an economical way by finding the attributes that are ...
  • A framework for developing finite element codes for multi-disciplinary applications. 

    Dadvand, Pooyan (Universitat Politècnica de Catalunya, 2007-07-13)
    Tesi
    Accés obert
    The world of computing simulation has experienced great progresses in recent years and requires more exigent multidisciplinary challenges to satisfy the new upcoming demands. Increasing the importance of solving ...
  • A framework for dynamic network architecture and topology optimization 

    Shafigh, Alireza Shams; Lorenzo, Beatriz; Glisic, Savo; Pérez Romero, Jordi; DaSilva, Luiz A.; MacKenzie, Allen B.; Röning, Juha (2016-04)
    Article
    Accés obert
    A new paradigm in wireless network access is presented and analyzed. In this concept, certain classes of wireless terminals can be turned temporarily into an access point (AP) anytime while connected to the Internet. This ...