Now showing items 175211-175230 of 176327

    • W-band radiometric imager with mechanical beam-scanning 

      Nova, Enrique; Abril, Jordi; Romeu Robert, Jordi; Broquetas Ibars, Antoni; Torres Torres, Francisco; Jofre Roca, Lluís (IEEE, 2011)
      Conference report
      Restricted access - publisher's policy
      The design of a 94 GHz Total Power Radiometer system for imaging purposes is presented in this paper. A mechanical beam-scanning antenna system is used to acquire passive raster images. The main performance parameters ...
    • Waddengebied environmental monitoring project 

      Demydenko, Serhii; Gómez Samper, Sebastian; Santiusti, Carlos; Koster, Bert (Universitat Politècnica de Catalunya, 2017-02)
      Bachelor thesis
      Restricted access - author's decision
      Covenantee:   Hanzehogeschool Groningen
      Waddensea is a Unesco World heritage area unique in the world due to its natural wealth. Groningen Seaports is the company which operates the two harbo r s in the Waddensea area. Since they are aware of their environmental ...
    • Wahrnehmung des Raumes : Malerei um 1800 

      Usandizaga Calparsoro, Miguel M. (Jade Hochschule, Fachhochschule Wilhelmshaven/Oldenburg /Elfsleth, 2010)
      Conference report
      Restricted access - publisher's policy
    • Wakana Gaiden: Una historia pixelada 

      Méndez López, Marina (Universitat Politècnica de Catalunya, 2016-06)
      Bachelor thesis
      Open Access
      ìWakana Gaiden: Una historia pixelada y es un trabajo que hace uso del pixel art para explicar una historia como si fuera un videojuego RPG. En ella se sigue a la protagonista, Wakana Sasaki, en su aventura hacia la villa ...
    • Wake vortex hazards in en-route airspace and suspected hazard area identification using high fidelity simulation models 

      Melgosa Farrés, Marc; Ruiz Navarro, Sergio; Busto, Javier; Steen, Meiko; Rojas Gregorio, José Ignacio; Prats Menéndez, Xavier (2018)
      Conference lecture
      Restricted access - publisher's policy
      This paper presents a discussion about risks and hazards of potential wake vortex encounters in the en-route airspace. High-fidelity simulations under realistic conditions have been analysed showing that the current ...
    • Wake-up communication system using solar panel and visible light communication 

      Carrascal Reyes, Carolina Andrea (Universitat Politècnica de Catalunya, 2014-07-24)
      Master thesis
      Open Access
      [ANGLÈS] One of the most promising energy-efficient communication methods is the use of wake-up receivers. In this work we propose and develop a wake-up communication system that uses Visible Light Communication (VLC) and ...
    • Wake-up radio as an energy-efficient alternative to conventional wireless sensor networks MAC protocols 

      Oller Bosch, Joaquim; Seyfettin Demirkol, Ilker; Casademont Serra, Jordi; Paradells Aspas, Josep; Gamm, Gerd Ulrich; Reindl, Leonhard (Association for Computing Machinery (ACM), 2013)
      Conference report
      Restricted access - publisher's policy
      The use of duty-cycling in Medium Access Control (MAC) protocols effectively helps improving the energy efficiency of wireless networks. However, while the benefits of these protocols are unquestionable, most of them still ...
    • Wake-up radio systems : design, development, performance evaluation and comparison to conventional medium access control protocols for wireless sensor networks 

      Oller i Bosch, Joaquim (Universitat Politècnica de Catalunya, 2015-03-06)
      Doctoral thesis
      Open Access
      During the recent years, the research related to Wake-up Radio (WuR) systems has gained noticeable interest. In WuR systems, a node initiating a communication first sends a Wake-up Call (WuC) by means of its Wake-up ...
    • Wake-up radio systems for cooperative-intelligent transport systems architecture 

      Casademont Serra, Jordi; López Aguilera, M. Elena; Paradells, Josep (2019)
      Conference report
      Open Access
      Cooperative-Intelligent Transport systems are new applications developed on top of communications between vehicles and between vehicles and fixed infrastructure. Their architecture envisages devices deployed along the ...
    • Wake-up receivers for wireless sensor networks: benefits and challenges 

      Seyfettin Demirkol, Ilker; Ersoy, Cem; Onur, Ertan (2009-09)
      Article
      Open Access
      For successful data delivery, the destination nodes should be listening to the medium to receive data when the sender node starts data communication. To achieve this synchronization, there are different rendezvous schemes, ...
    • Wake-Up Transceiver Architectures with Novel Symbol Time Synchronization Schemes for ElectroMagnetic NanoNetworks 

      Gómez Cid-Fuentes, Raül (Universitat Politècnica de Catalunya, 2011-07-13)
      Master thesis (pre-Bologna period)
      Open Access
      English: The work we present on this thesis covers unresolved PHY-Layer topics for Electromagnetic Nanonetworks that covers the transceiver architecture, frequency estimation for symbol synchronization and a wake-up receiver ...
    • Wakefield acceleration in planetary atmospheres: a possible source of MeV electrons : the collisionless case 

      Arrayas Chazeta, Manuel; Cubero Gómez, David; Montañá Puig, Juan; Seviour, Rebecca; Trueba Santander, Jose Luis (2018-07-01)
      Article
      Open Access
      Intense electromagnetic pulses interacting with a plasma can create a wake of plasma oscillations. Electrons trapped in such oscillations can be accelerated under certain conditions to very high energies. We study the ...
    • Wakes and instabilities of static and freely vibrating cylinders 

      Rodríguez Pérez, Ivette María; Lehmkuhl, Oriol; Pastrana Maldonado, Daniel; Cajas García, Juan Carlos; Houzeaux, Guillaume (Springer, 2019)
      Conference report
      Restricted access - publisher's policy
      The flow around static and freely vibrating cylinders are of interest in understanding different phenomena encountered in many practical applications.
    • Walden 7 

      Gili Galfetti, Gustau (Grupo PAB Departamento de Projectos Arquitectónicos, 2011-02)
      Part of book or chapter of book
      Open Access
    • Walk line drawing 

      Balduz López, Pablo (Universitat Politècnica de Catalunya, 2017-04-25)
      Bachelor thesis
      Open Access
      Covenantee:   Technische Universität Wien
      The idea is to suggest a hiking trip or a city sightseeing tour based on an input line drawing. The program should evaluate the plausibility of walking a certain trail defined by the line drawing and suggest a place in a ...
    • Walk-off acceptance for quadratic soliton generation 

      Carrasco Rodríguez, Sílvia; Pérez Torres, Juan; Torner Sabata, Lluís; Wise, F W (2001-05)
      Article
      Restricted access - publisher's policy
      We find the walk-off acceptance for multicolor soliton formation in second-harmonic generation schemes with single-frequency pump light. It is revealed that even though soliton families exist, outside the allowed band of ...
    • Walkee: App móvil para pasear perros 

      Calle Millán, Alexandre (Universitat Politècnica de Catalunya, 2019-02)
      Bachelor thesis
      Open Access
      El estilo de vida acelerado que llevamos nos limita el tiempo que podemos dedicar a nuestros perros. Este proyecto, que pretende mejorar la calidad de vida de éstos, plantea una solución común y sin ánimo de lucro mediante ...
    • Walking behavior of individuals with and without disabilities at right-angle turning facility 

      Gaire, Nirdosh; Sharifi, Mohammad Sadra; Christensen, Keith M.; Chen, Anthony; Song, Ziqi (Càtedra d'Accessibilitat (CATAC), 2017-05-31)
      Article
      Open Access
      Urban designers need to carefully consider the walking behavior of pedestrians within different walking environments to accommodate their needs. Microscopic studies of the walking behavior of pedestrians have been conducted ...
    • Walking behaviour by detecting common patterns 

      Moreno Vázquez, Jonatan (Universitat Politècnica de Catalunya, 2015-04-23)
      Master thesis
      Restricted access - confidentiality agreement
    • Walking light bullets 

      Mihalache, Dumitru; Mazilu, D; Malomed, B; Torner Sabata, Lluís (1999-10)
      Article
      Restricted access - publisher's policy
      Two-parameter families of chirped stationary two-dimensional light bullets, in the form of localized spatio-temporal solitons in dispersive-diffractive quadratically nonlinear optical media under conditions for the Type I ...