Browsing by Subject "Radiació"

Now showing items 1-20 of 63

    • 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 ...

    • Ampliació de l’estació meteorològica de l’EPSEVG i difusió de les seves dades mitjançant la norma IEEE 1451 

      Martínez Mestres, Marc (Universitat Politècnica de Catalunya, 2011-07-05)
      Master thesis (pre-Bologna period)
      Restricted access - confidentiality agreement

    • 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 ...

    • Aplicació fotovoltaica per a un museu 

      Méndez Rivero, Òscar (Universitat Politècnica de Catalunya / Universitat Politècnica de Catalunya, 2004-11)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      L’objectiu principal del projecte és crear una aplicació didàctica relacionada amb l’energia solar fotovoltaica per al futur museu de les energies renovables (Masia de Can Julià), promogut pel grup ESDIM del Departament ...

    • 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 ...

    • 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. ...

    • 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 ...

    • Determinación in vitro del factor de protección UV de los textiles 

      Algaba Joaquín, Inés María; Riva Juan, Ascensión (Instituto de Investigación Textil y Cooperación Industrial, 2002-01)
      Article
      Open Access
      El efecto de la radiación ultravioleta sobre la piel es un tema de creciente interés en la actualidad, debido sobretodo al aumento que se ha producido en algunos países en el número de casos de cáncer de piel. En el XXV ...

    • 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 ...

    • Effects of radiation on the electronic components of a satellite in Polar Low Earth Orbit 

      Bermejo Dalmau, Esther (Universitat Politècnica de Catalunya, 2012-07-17)
      Bachelor thesis
      Open Access
      This project aims to analyze space radiation effects on the electronic components of WikiSat, the femto-satellite developed at EETAC. We present a further development of the project presented by Laia Molas Pous, in which ...

    • Electrificació solar fotovoltaica per a l’Illa del Rei (Port de Maó, Menorca) 

      Borrás Fedelich, Cristina (Universitat Politècnica de Catalunya, 2013)
      Master thesis (pre-Bologna period)
      Open Access
      Aquest projecte tracta sobre un estudi de viabilitat i posterior dimensionament d’una instal·lació fotovoltaica per a l’edifici principal de l’illa del Rei, situada en el centre del port de Maó, Menorca. L’edifici ...

    • Experimental study of the 91Zr(n, gamma ) reaction up to 26 keV 

      Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2008-10)
      Article
      Restricted access - publisher's policy
      The neutron capture cross sections of the Zr isotopes are relevant to studies in nuclear structure, nuclear astrophysics, and nuclear technology. The valence neutron of 91Zr with respect to the neutron magic nucleus 90Zr ...

    • Experimental study of the emissivity of flames resulting from the combustion of forest fuels 

      Agueda Costafreda, Alba; Pastor Ferrer, Elsa; Pérez, Yolanda; Planas Cuchi, Eulàlia (2009-06)
      Article
      Restricted access - publisher's policy
      Heat transfer by radiation is taken into account in most models that predict the propagation of forest fires. This heat transfer mechanism is normally formulated according to the Stefan–Boltzmann law in terms of flame ...

    • Formulación espectral de la radiación: aplicación al caso cilíndrico 

      Romeu Robert, Jordi (Universitat Politècnica de Catalunya, 1991-07-08)
      Doctoral thesis
      Open Access
      Formulación espectral de la radiación en coordenadas cartesianas, cilíndricas y esféricas. Aplicación de la formulación a problemas de diagnostico de antenas, análisis del efecto de radomos y transformación campo próximo ...