Now showing items 1-10 of 10

    • A new method for performing smouldering combustion field experiments in peatlands and rich-organic soils 

      Pastor Ferrer, Elsa; Oliveras Menor, Immaculada; Urquiaga-Flores, Erickson; Quintano Loayza, Jose Antonio; Manta Nolasco, Maria Isabel; Planas Cuchi, Eulàlia (2017-12-08)
      Article
      Open Access
      Smouldering ground fires have severe environmental implications. Their main effects are the release of large amounts of carbon to the atmosphere with loses of organic soil and its biota. Quantitative data on the behaviour ...
    • Infrared imaging software for jet fire analysis 

      Mata Miquel, Cristian; Pastor Ferrer, Elsa; Rengel Darnaculleta, Francisco de Borja; Valero Pérez, Mario Miguel; Planas Cuchi, Eulàlia; Palacios, Adriana; Casal Fàbrega, Joaquim (2018)
      Conference report
      Open Access
      Jet fires, often originated by the ignition of hydrocarbon sonic jets, are characterized by a high momentum jet flame lifted from the outlet orifice. The high thermal flux released, especially if there is flames impingement ...
    • Optical resources for highly secure remote object authentication 

      Millán Garcia-Varela, M. Sagrario; Pérez Cabré, Elisabet; Bahram, Javidi (SPIE-The International Society for Photo-Optical Instrumentation Engineers, 2007)
      Conference lecture
      Open Access
    • Optical validation of combined images for high-secure identification. ID tags and processors 

      Millán Garcia-Varela, M. Sagrario; Pérez Cabré, Elisabet; Bahram, Javidi (2007)
      Conference report
      Restricted access - publisher's policy
      In this work, we use a novel multifactor encryption-authentication technique that reinforces optical security by allowing the simultaneous AND-verification of more than one primary image. This optical technique is attractive ...
    • OUFTI-NEXT : study of refractive lenses for an infrared camera 

      Riera Salvà, Anna (Universitat Politècnica de Catalunya, 2019-05-22)
      Master thesis
      Open Access
      Covenantee:   Université de Liège / Centre Spatial de Liège
      The aim of this master thesis is to survey the capability of a refractive design to accommodate the requirements of the OUFTI-NEXT payload. The optical design for thermal infrared camera is challenging:• the lack of glass ...
    • Self-similar current distribution on fractal Sierpinski antenna verified with infrared thermograms 

      González Arbesú, José María; Puente Baliarda, Carles; Romeu Robert, Jordi; Aguasca Solé, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 1999)
      Conference report
      Open Access
      Experimental verification of the fractal Sierpinski antenna surface current distribution is presented. Measured data from an infrared camera agree with numerical data showing a self-similar behavior in the current density ...
    • Spatially and frequency-resolved monitoring of intradie capacitive coupling by heterodyne excitation infrared lock-in thermography 

      León, J.; Perpiñà, Xavier; Altet Sanahujes, Josep; Vallvehi, Miquel; Jordà, Xavier (2013-02-05)
      Article
      Restricted access - publisher's policy
      This paper combines the infrared lock-in thermography (IR-LIT) and heterodyne excitation techniques to detect high-frequency capacitive currents due to intradie electrical coupling between microelectronic devices or more ...
    • Texture evaluation of automotive coatings by means of a gonio-hyperspectral imaging system based on light-emitting diodes 

      Burgos Fernández, Francisco Javier; Pujol Ramo, Jaume; Perales Romero, Esther; Martínez Verdú, Francisco Miguel; Vilaseca Ricart, Meritxell (Multidisciplinary Digital Publishing Institute (MDPI), 2020-03-27)
      Article
      Open Access
      Sparkle and graininess are textural effects that appear as intrinsic spatial features of coatings containing goniochromatic pigments, whereas others such as mottling are undesired outcomes. In this study, we present new ...
    • The Earth surface mineral dust source investigation: An Earth Science imaging spectroscopy mission 

      Green, Robert O.; Mahowald, Natalie; Ung, Charlene; Thompson, David R.; Bator, Lori; Bennet, Matthew; Bernas, Michael; Blackway, Natalie; Bradley, Christine; Cha, Jeff; Clark, Pamela; Clark, Roger; Cloud, Deborah; Diaz, Ernesto; Dor, Eyal Ben; Duren, Riley; Eastwood, Michael; Ehlmann, Bethany L.; Fuentes, Lisa; Ginoux, Paul; Gross, Johannes; He, Yutao; Kalashnikova, Olga; Kert, William; Keymeulen, Didier; Klimesh, Matt; Ku, Daniel; Kwong-Fu, Helenann; Liggett, Elliott; Li, Longlie; Lundeen, Sarah; Makowski, Maciej D.; Mazer, Alan; Mouroulis, Pantazis; Oaida, Bogdan; Ortega, Alberto; Oyake, Amalaye; Nguyen, Hung; Pace, Theresa; Painter, Thomas H.; Pempejian, Jack; Pérez García-Pando, Carlos; Pham, Thang; Phillips, Benjamin; Pollock, Randy; Purcell, Richard; Realmuto, Vincent; Schoolcraft, Josh; Sen, Amit; Shin, Simon; Shaw, Lucas; Soriano, Manny; Thingvold, Erik; Vaid, Afsheen; Zan, Jason (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Conference lecture
      Open Access
      The Earth Surface Mineral Dust Source Investigation, EMIT, is planned to operate from the International Space Station starting no earlier than the fall of 2021. EMIT will use visible to short wavelength infrared imaging ...
    • Thermal anomalies detection in the infrarred Spectrum at Weldestein 7-X 

      Moreno Punzano, Alex (Universitat Politècnica de Catalunya, 2020-02-05)
      Bachelor thesis
      Open Access
      In 2018, a series of experiments were made on the nuclear fusion reactor Weldenstein 7-X. Throughout these experiments, a huge amount of information was generated and gathered. The aim of this work is use image processing ...