Now showing items 1-20 of 51

    • A linear array design based on non-uniform Chebyshev distribution for high gain low sidelobe level millimetre wave 5G applications 

      Ahmad, Shaheen (Universitat Politècnica de Catalunya, 2020-07)
      Master thesis
      Open Access
      Antenna is the front-end element and is a major part of designing a robust communication system. The increased user density and high data rate requirements now a days can be overcome by a wideband antennas capable of having ...
    • Analysis of occupational radiation exposure depending on the anthropometric data of patients in interventional radiology 

      Sellas Lleó, Eva (Universitat Politècnica de Catalunya, 2021-07-07)
      Bachelor thesis
      Open Access
      Els procediments de radiologia intervencionista (IR) són cada vegada més utilitzats a mesura que avança la tecnologia i, per tant, el nombre d’aplicacions ha augmentat constantment. Aquests procediments mínimament invasius ...
    • Analysis of the geometric and radiative characteristics of hydrocarbon pool-fires 

      Planas Cuchi, Eulàlia; Casal Fàbrega, Joaquim; Arnaldos Viger, Josep; Muñoz, Miguel Ángel (2004-08-01)
      Article
      Restricted access - publisher's policy
      The radiation intensity at a given distance depends mainly on the radiative power and the flame’s size and shape. Considerable literature describing both experimental and theoretical studies of thermal radiation from ...
    • Análisis de antenas parabólicas 

      Jofre Roca, Lluís; Cardama Aznar, Ángel (1981)
      Conference report
      Open Access
      This paper describes a set of procedures for computing secondary patterns of parabolic-reflector antennas. Once the primary feed radiation pattern is defined, aperture-plane fields are computed for a grid of points using ...
    • Cadmium zinc telluride solid-state detector characterization for its use as a spectro-dosemeter 

      Kržanovic, Nikola; Röttger, Annette; Morosh, Viacheslav; Luchkov, Maksym; Neumaier, Stefan (2019)
      Conference report
      Open Access
      Concerning ionising radiation monitoring in the environment in areas which, by normal means, are inaccessible, e.g. in contaminated areas after a nuclear or radiological incident, the use of highly mobile systems, comprising ...
    • Comparison of airborne radiation detectors carried by rotary-wing unmanned aerial systems 

      Vargas Drechsler, Arturo; Costa Vargas, Daniel; Macias López, Miquel; Royo Chic, Pablo; Pastor Llorens, Enric; Luchkov, Maksym; Neumaier, Stefan; Stöhlker, Ulrich; Luff, Roger (2020)
      Article
      Open Access
      The Universitat Politecnica de Catalunya (UPC), the Physikalisch-Technische Bundesanstalt (PTB) and the German Federal Office of Radiation Protection (BfS) have analysed the response of a 2”x2” (diameter x height) NaI and ...
    • Comparison of empirical interatomic potentials for iron applied to radiation damage studies 

      Becquart, C.S.; Willaime, F.; Terentyev, Dimitry; Serra Tort, Ana María; Nordlund, K.; Malerba, L.; Marinica, M.C.; Anento Moreno, Napoleón; Björkas, C.; Nguyen, H.; Domain, C.; Djurabekova, F.; Olsson, P. (2010)
      Article
      Restricted access - publisher's policy
      The performance of four recent semi-empirical interatomic potentials for iron, developed or used within the FP6 Perfect Project, is evaluated by comparing them between themselves and with available experimental or, more ...
    • Conductive plate to improve the protection of the building’s occupants from radiation and environmental electromagnetic fields 

      Franco González, Fidel (2017)
      Conference lecture
      Restricted access - publisher's policy
      The current buildings have problems that affect the health of the occupants. Inside there are electromagnetic fields produced by the network cabling, microwave fields of the WI-FI, fields produced by terrestrial storms, ...
    • Configuration factors for ground level fireballs with shadowing 

      Vílchez, Juan Antonio; Muñoz, Miguel; Bonilla, Juan M.; Planas Cuchi, Eulàlia (2018-01-01)
      Article
      Open Access
      This paper presents new configuration factors for a fireball located at ground level, as radiation emitting source, and a differential receiver, considering the shadow effect of a third finite area that stands between them. ...
    • Correction of spatial errors in SMOS brightness temperature images 

      Wu, Lin; Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Duffo Ubeda, Núria; Martín-Neira, Manuel (IEEE, 2011)
      Conference report
      Restricted access - publisher's policy
      Systematic spatial errors in SMOS brightness temperature images are successfully estimated by using a statistical analysis of measured data. A constant multiplicative mask is derived by averaging spatial errors of a large ...
    • Coupled radiation and natural convection: Different approaches of the slw model for a non-gray gas mixture 

      Colomer Rey, Guillem; Consul Serracanta, Ricard; Oliva Llena, Asensio (2007-09)
      Article
      Open Access
      The coupling between non-gray radiation heat transfer and convection–conduction heat transfer is studied. The spectral line weighted sum of gray gases model (SLW) is used to account for non-gray radiation properties. The ...
    • Cylindrical geometry: a further step in active microwave tomography 

      Broquetas Ibars, Antoni; Jofre Roca, Lluís; Cardama Aznar, Ángel; Elias Fusté, Antoni; Rius Casals, Juan Manuel; Romeu Robert, Jordi (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1991-05-01)
      Article
      Open Access
      A prototype imaging system for active microwave tomography using cylindrical geometry has been developed, making it possible to obtain images of the dielectric properties of biological targets at 2.45 GHz. This configuration ...
    • Determination of the Total Annual Dose emitted by an irradiated target in ISIS synchrotron. 

      Sabio Ruiz, Daniel (Universitat Politècnica de Catalunya, 2017-06-15)
      Master thesis
      Open Access
      Thisworkcontainstheprocessfollowedtounderstandandsimulatehowaspeci csetofmaterials areactivated.Themainissueconsistsinhowtoshieldthesekindofmaterialstoensurethat anyonewillbeexposedtoharmfulradiation. Forthisspeci ...
    • Diseño optimizado de agrupaciones de antenas planas 

      Clavera, Jordi; Jiménez, Jesús; Romeu Robert, Jordi; Blanch Boris, Sebastián; Jofre Roca, Lluís (Unión Científica Internacional de Radio (URSI), 1990)
      Conference report
      Open Access
    • DPM as a radiation transport engine for PRIMO 

      Rodríguez, Miguel; Sempau Roma, Josep; Bäumer, Christian (Springer (Biomed Central Ltd.), 2018-12-27)
      Article
      Open Access
      Background PRIMO is a dose verification system based on the general-purpose Monte Carlo radiation transport code penelope, which implements an accurate physics model of the interaction cross sections and the radiation ...
    • EURADOS STRATEGIC RESEARCH AGENDA 2020: VISION FOR THE DOSIMETRY OF IONISING RADIATION 

      Vargas Drechsler, Arturo; Ainsbury, Elizabeth A.; Alves, J.; Bottollier-Depois, Jean-Francois; Breustedt, Bastian; Caresana, Marco; Clairand, Isabelle; Fantuzzi, Elena; Fattibene, Paola; Gilvin, Phil; López Ponte, María Antonia; Olsovcová, Veronika; Rabus, H.; Ruehm, Werner; Silari, Marco; Stolarczyk, Liliana; Tanner, Richard; Vanhavere, Filip; Woda, Clemens (2021-05-31)
      Article
      Open Access
      Since 2012, the European Radiation Dosimetry Group (EURADOS) has developed its Strategic Research Agenda (SRA), which contributes to the identification of future research needs in radiation dosimetry in Europe. Continued ...
    • Gap soliton in a waveguide array with a saturating defocusing nonlinearity 

      Gaizzuskas, E; Savickas, A.; Staliunas, Kestutis (2014-03-01)
      Article
      Restricted access - publisher's policy
      We investigate radiation of the solitary waves in the first band gap of the waveguide array with a defocusing nonlinearities of different types (Kerr nonlinearity and saturating nonlinearity). We confirm recent findings ...
    • In the search of a zero architecture: using grasshopper for the design of a zero net energy library in California 

      Ruiz Cordero, Magdalena (Universitat Politècnica de Catalunya, 2020-10-15)
      Bachelor thesis
      Open Access
      Research that was conducted during my participation at the “ARCHITECTURE AT ZERO 2020” challenge, where the target was to create a zero net energy library for the San Benito County Free Library in Hollister, CA. The overall ...
    • Inter-islands optical link tests 

      Comerón Tejero, Adolfo; Bará Temes, Francisco Javier (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1990-05-01)
      Article
      Open Access
      Free-space optical communication systems between satellites and also between a satellite and a ground station foreseen in Europe in the mid-1990's require far-field on-ground experimentation prior to launch. To identify ...
    • Interferometric radiometry measurement concept: The visibility equation 

      Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Duffo Ubeda, Núria; Martín-Neira, Manuel (IEEE, 2011)
      Conference report
      Restricted access - publisher's policy
      The fundamental concept of interferometric aperture synthesis microwave radiometry for Earth observation is reviewed. The measurement principles and a discussion on the signal processing techniques for image reconstruction ...