Ara es mostren els items 3045-3064 de 245486

    • A Cellular Automata Model for Integrated Simulation of Land Use and Transport Interactions 

      Norte Pinto, Nuno; Antunes, Antonio; Roca Cladera, Josep (Multidisciplinary Digital Publishing Institute (MDPI), 2021-03-08)
      Article
      Accés obert
      Cellular automata (CA) models have been used in urban studies for dealing with land use change. Transport and accessibility are arguably the main drivers of urban change and have a direct influence on land use. Land use ...
    • A cellular automata model for the study of small urban areas 

      Norte Pinto, Nuno; Roca Cladera, Josep (2007-09-07)
      Text en actes de congrés
      Accés obert
    • A cellular automata model for the study of small-size urban areas 

      Norte Pinto, Nuno; Roca Cladera, Josep (2007-01-23)
      Presentació
      Accés obert
    • A cellular decomposition of the manifold of observable conditioned invariant subspaces 

      Puerta Sales, Ferran; Puerta Coll, Xavier; Zaballa, Ion (2000)
      Article
      Accés obert
      Given an observable system defined by a pair of matrices $(C,A)$ we obtain a cellular decomposition of the manifold of $(C,A)$-conditioned invariant subspaces having the restricted system fixed observability indices and ...
    • A census for curves and surfaces with diophantine stability over finite fields 

      Vrioni, Brikena (Universitat Politècnica de Catalunya, 2021-10-29)
      Tesi
      Accés obert
      An algebraic variety defined over a field is said to have Diophantine stability for an extension of this field if the variety does not acquire new points in the extension. Diophantine stability has a growing interest due ...
    • A Central Limit Theorem for inner functions 

      Nicolau Nos, Artur; Soler i Gibert, Odí (2022-06)
      Article
      Accés obert
      A Central Limit Theorem for linear combinations of iterates of an inner function is proved. The main technical tool is Aleksandrov Disintegration Theorem for Aleksandrov-Clark measures.
    • A centrality-based topology control protocol for wireless mesh networks 

      Vázquez Rodas, Andrés; Cruz Llopis, Luis Javier de la (Elsevier, 2015-01-01)
      Article
      Accés obert
      Nodes in wireless multi-hop networks establish links with their neighbors, which are used for data transmission. In general, in this kind of networks every node has the possibility of acting as a router, forwarding the ...
    • A century of tourism in Europe: new challenges to the discipline of urbanism 

      Pié Ninot, Ricard; Vilanova Claret, Josep Maria (International Forum on Urbanism / Escola Técnica Superior d'Arquitectura de Barcelona, 2012-01)
      Text en actes de congrés
      Accés obert
      Tourism is one of the most important modern phenomena of the last hundred years. Not only for its economic significance, but also by the changes it has produced in the city and the territory. Unfortunately, in many cases ...
    • A Ceres solver based bundle adjustment module 

      Alvarruiz Serrano, Andreu (Universitat Politècnica de Catalunya, 2014-07)
      Treball Final de Grau
      Accés obert
      A principis de la dècada dels 90, l’Institut Cartogràfic i Geològic de Catalunya va desenvolupar un programa anomenat ACX que permet, entre altres aplicacions, aerotriangular blocs fotogramètrics fent ús del mètode de ...
    • A CFD Benchmark on the Thermal Hydraulic Behavior of ITER’s Vacuum Vessel 

      Catalán Conde, David (Universitat Politècnica de Catalunya, 2020-07-27)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      The current project presents a CFD Benchmark on the Thermal-Hydraulic (TH) performance of ITER’s Vacuum Vessel. The geometry has been selected to be of one of the 4 Poloidal Segments (PS), the PS#01, of a Regular Sector ...
    • A CFD framework for offshore and onshore wind farm simulation 

      Avila, Matias; Gargallo-Peiró, Abel; Folch, Arnau (IOP Publishing, 2017)
      Article
      Accés obert
      We present a wind simulation framework for offshore and onshore wind farms. The simulation framework involves an automatic hybrid high-quality mesh generation process, a pre-processing to impose initial and boundary ...
    • A CFD study of air flow inside a building heated by solar radiation 

      Jang Kweon, Minho (Universitat Politècnica de Catalunya, 2017-10-27)
      Treball Final de Grau
      Accés restringit per acord de confidencialitat
    • A CFD study of an annular pilot plant reactor for Paracetamol photo-Fenton degradation 

      Venier, Cesar M.; Conte, Leandro Oscar; Pérez Moya, Montserrat; Graells Sobré, Moisès; Nigro, Norberto; Alfano, Orlando M. (Elsevier, 2021-04-15)
      Article
      Accés obert
      This work studies in detail the photo-Fenton degradation process of Paracetamol (PCT) on an annular pilot-plant reactor using Computational Fluid Dynamics (CFD). A cylindrical lamp emission model was originally implemented ...
    • A CFD-based surrogate model for predicting flow parameters in a ventilated room using sensor readings 

      Morozova, Nina; Trias Miquel, Francesc Xavier; Capdevila Paramio, Roser; Schillaci, Eugenio; Oliva Llena, Asensio (2022-07-01)
      Article
      Accés restringit per política de l'editorial
      In this work, we develop a computational fluid dynamics (CFD)-based surrogate model, which predicts flow parameters under different geometrical configurations and boundary conditions in a benchmark case of a mechanically ...
    • A Chandrasekhar mass progenitor for the type Ia supernova remnant 3C 397 from the enhanced abundances of nickel and manganese 

      Yamaguchi, H; Badenes Montoliu, Carles; Foster, Adam; Bravo Guil, Eduardo; Williams, Brian; Maeda, Keichi; Nobukawa, Masayoshi; Eriksen, Kristoffer; Brickhouse, Nancy; Petre, Robert; Koyama, Katsuyi (2015-03-12)
      Article
      Accés restringit per política de l'editorial
      Despite decades of intense efforts, many fundamental aspects of Type Ia supernovae (SNe Ia) remain elusive. One of the major open questions is whether the mass of an exploding white dwarf (WD) is close to the Chandrasekhar ...
    • A channel allocation algorithm for OSA-Enabled IEEE 802.11 WLANs 

      Novillo Parales, Francisco Vicente; Churchman, Mathew; Ferrús Ferré, Ramón Antonio; Agustí Comes, Ramon (2009-09)
      Text en actes de congrés
      Accés obert
      Channel allocation problem is a major challenge in wireless local area networks (WLANs), especially in dense deployments of access points (APs) where congestion of the unlicensed spectrum bands (i.e., ISM bands) could ...
    • A channel allocation algorithm for OSA-Enabled IEEE 802.11 WLANs 

      Novillo Parales, Francisco Vicente; Churchman, Mathew; Ferrús Ferré, Ramón Antonio; Agustí Comes, Ramon (2009)
      Text en actes de congrés
      Accés obert
      Channel allocation problem is a major challenge in wireless local area networks (WLANs), especially in dense deployments of access points (APs) where congestion of the unlicensed spectrum bands (i.e., ISM bands) could ...
    • A channel characterization technique for HF communications 

      Delgado Penin, José Antonio (1985)
      Text en actes de congrés
      Accés obert
      A wideband channel sounder to characterize the HF radio channel is described. Based on a pseudorandom sequence technique it allows the measurement of the complex impulsional response of the channel with time and frequency ...
    • A chaotic secure communication scheme based on duffing oscillators and frequency estimation 

      Zapateiro, Mauricio; Vidal Seguí, Yolanda; Acho Zuppa, Leonardo (2013)
      Text en actes de congrés
      Accés obert
      This work presents a new technique to securely transmit and retrieve a message signal via chaotic systems. In our system, a two-valued message signal modulates the frequency of a Duffing oscillator sinusoidal term. An ...
    • A chaotic secure communication system design based on iterative learning control theory 

      Acho Zuppa, Leonardo (Multidisciplinary Digital Publishing Institute, 2016-10-01)
      Article
      Accés obert
      This paper presents an application of Iterative Learning Control (ILC) theory to secure communication system design by using chaotic signals, where the logistic-map is employed as a source of chaos. Meanwhile, the ILC ...