Browsing by Subject "Aerosols"

Now showing items 1-20 of 44

    • A long Saharan dust event over the western Mediterrranean: Lidar, Sun photometer observations and regional dust modelling. 

      Pérez, Carlos; Nickovic, S.; Baldasano Recio, José María; Sicard, Michaël; Rocadenbosch Burillo, Francisco; Cachorro, V.E. (2006-08-31)
      Article
      Open Access
      A long Saharan dust event affected the western Mediterranean in the period 12– 28 June 2002. Dust was present mainly between 1- and 5-km height affecting most parts of the Iberian Peninsula and reaching western/central ...

    • A new code for spectrometric analysis for environmental radiological surveillance on monitors focused on gamma radioactivity on aerosols 

      Blas del Hoyo, Alfredo de; Riego Pérez, Albert; García Sánchez, Roger; Tapia Fernández, Carlos; Dies Llovera, Javier; Toral, Juan; Batalla, Enric; Díaz Bayona, Pedro (2016-06)
      Article
      Open Access
      This paper presents a new code for the analysis of gamma spectra generated by an equipment for continuous measurement of gamma radioactivity in aerosols with paper ¿lter. It is called pGamma and has been developed by the ...

    • Aerosol stratification characterization of an astronomical site by means of a backscatter lidar at the Roque de los Muchachos Observatory 

      Jiménez Fuensalida, Jesús; Muñoz Tuñón, Casiana; Sicard, Michaël; Tomás Martínez, Sergio; Md. Reba, Mohd Nadzri; Comerón Tejero, Adolfo; Batet Torrell, Óscar; Muñoz Porcar, Constantino; Rodríguez Gómez, Alejandro Antonio; Rocadenbosch Burillo, Francisco (2009)
      Conference report
      Open Access
      The Roque de los Muchachos Observatory, located on the island of La Palma in the Canary Islands, is home of many astronomical facilities. In the context of the Extremely Large Telescope Design Study, an intensive lidar ...

    • Anàlisi i comparativa de proveïdors de dades ADS-B 

      Olivera Ballarín, Álex (Universitat Politècnica de Catalunya, 2020-09-15)
      Bachelor thesis
      Restricted access - confidentiality agreement
      Covenantee:   Mitiga Solutions
      The presence of aerosols in the atmosphere is of great importance in aeronautics. Large doses ingested by the engine can cause both economic losses and safety issues. At Mitiga Solutions, a spin-off of the Barcelona ...

    • Análisis y ajuste de las variables de proceso para la fabricación de polvos de aleaciones base estaño mediante un atomizador centrífugo 

      Ayllón Muro, Àxel (Universitat Politècnica de Catalunya, 2017-06)
      Bachelor thesis
      Restricted access - author's decision
      En el presente proyecto se ha realizado la puesta a punto de un prototipo para la atomización de polvo metálico mediante la técnica de atomización centrífuga, incluyendo los diferentes componentes que intervienen en el ...

    • Atomization of liquids by a novel technique 

      Guallarte Jurado, Marta (Universitat Politècnica de Catalunya / Technische Universität Graz, 2013)
      Bachelor thesis
      Restricted access - author's decision
      The usefulness of sprays in a wide range of industrial applications (combustion, coating, spray drying, etc.) makes the understanding of the atomization process very valuable, specially to choose the most suitable atomizer ...

    • Climatology of the aerosol extinction to backscatter ratio from sun photometric measurements 

      Baldasano Recio, José María; Pedrós, Roberto; Estallés, Víctor; Sicard, Michaël; Gómez Amo, Jose Luis; Utrillas, Maria Pilar; Martínez Lozano, José Antonio; Rocadenbosch Burillo, Francisco; Pérez, C. (IEEE Press. Institute of Electrical and Electronics Engineers, 2010-01-01)
      Article
      Open Access
      The elastic lidar equation contains two unknown atmospheric parameters, namely, the particulate optical extinction and backscatter coefficients, which are related through the lidar ratio (i.e., the particulate-extinct ...

    • Cloud-aerosol-turbulence interactions: Science priorities and concepts for a large-scale laboratory facility 

      Mellado González, Juan Pedro; Shaw, Raymond A.; Cantrell, Will; Xue, Lulin; Chuang, Patrick; Donahue, Neil; Feingold, Graham; Kollias, Pavlos; Korolev, Alexei (2020-07-17)
      Article
      Restricted access - publisher's policy
      Clouds and aerosols, ubiquitously embedded in turbulent flows, are central to the prediction of weather and climate. The purpose of the workshop described here was to explore scientific questions and set priorities for a ...

    • Combustion of a spray atomized by a simplex 

      Lozano Torres, Noelia (Universitat Politècnica de Catalunya / Université Henri Poincaré, 2009)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      This project is based on the study of the combustion of a mist of droplets generated by a pressure swirl nozzle (simplex). There will be realized a simulation of the injected droplets trajectories, by means of a computational ...

    • Contribución de la red de lidares EARLINET a la infraestructura europea de investigación atmosférica ACTRIS (Aerosols, Clouds, and Trace Gases Infrastructure Network). 

      Comerón Tejero, Adolfo; Sicard, Michaël; Rocadenbosch Burillo, Francisco (2012)
      Conference report
      Open Access

    • Coordinated lidar observations of Saharan dust over Europe in the frame of EARLINET-ASOS project during CALIPSO overpasses: A case study analysis with modeling support 

      de Tomasi, Ferdinando; Papayannis, Alexander; Amidiris, V.; Mona, L.; Mamouri, R. E.; Apituley, Arnoud; Alados Arboledas, Lucas; Balis, Dimitris; Chaikovsky, Anatoli; Wang, Xuan; Pietruczuk, Aleksander; Pérez, C.; Nicolae, D.; Müller, D.; Molero, Francisco; Mitev, V.; Mattis, I.; Linné, Holger; Gustafsson, O.; Grigorov, Ivan V.; Putaud, J. P.; Pappalardo, Gelsomina; Trickl, Thomas; D'Amico, Giuseppe; Simeonov, Valentin; Stebel, K.; Schnell, Franziska; Sicard, Michaël; Ravetta, F.; Rizi, V. (2009)
      Conference report
      Open Access
      Coordinated lidar observations of Saharan dust over Europe are performed in the frame of the EARLINETASOS (2006-2011) project, which comprises 25 stations: 16 Raman lidar stations, including 8 multiwavelength (3+2 station) ...

    • Desarrollo de una interfaz de usuario para programas de inversión LIDAR: despolarización por aerosoles 

      Galdaba Toledano, Alvaro (Universitat Politècnica de Catalunya, 2018-10-23)
      Bachelor thesis
      Open Access
      The project that has been developed for this work at the end of degree aims to integrate a series of routines in MATLAB, which allow us to obtain information about the depolarization that atmospheric aerosols produce on ...

    • Development and assembly of a sampling device and a di-lution system for brake particle measurements in test drives 

      Guerra Pérez, Alberto (Universitat Politècnica de Catalunya, 2018-10-31)
      Bachelor thesis
      Open Access
      Covenantee:   Technische Universität Darmstadt
      Due to the reduction of exhaust emissions in the last years, the percentage of particulate matter emitted by non-exhaust sources has increased. Brakes play an important role emitting more than half of this type of ...

    • Dose assessment to workers in a dicalcium phosphate production plant 

      Mulas Capuz, Daniel; Garcia Orellana, Jordi; Casacuberta, N.; Hierro, A.; Moreno, Victoria; Masque Barri, Pere (Elsevier, 2016-12-01)
      Article
      Open Access
      The production of dicalcium phosphate (DCP) uses phosphate rock (PR) as a raw material. Sedimentary phosphate rocks are enriched with relevant concentrations of natural radionuclides from the 238U decay chain (around 103 ...

    • Earlinet validation of CATS L2 product 

      Proestakis, E.; Amiridis, Vassilis; Kottas, M.; Yorks, J.; Muñoz Porcar, Constantino; Sicard, Michaël (EDP Sciences, 2018)
      Conference report
      Open Access
      The Cloud-Aerosol Transport System (CATS) onboard the International Space Station (ISS), is a lidar system providing vertically resolved aerosol and cloud profiles since February 2015. In this study, the CATS aerosol product ...

    • Estimation of a radiative transfer model in the longwave spectral range: sensitivity study and application to real cases 

      Sicard, Michaël; Bertolín Martínez, Santiago; Mallet, Marc; Dubuisson, Philippe; Comerón Tejero, Adolfo (2013)
      Conference report
      Restricted access - publisher's policy
      The aerosol radiative effect in the longwave spectral range is often neglected in atmospheric aerosol forcing studies, hence very few researches are conducted in this field at local scale, and even less at regional scale. ...

    • Estudi i disseny i implementació d’un mecanisme dosificador de boles per aerosol en zona ATEX 

      Solé Rius, Josep (Universitat Politècnica de Catalunya, 2019-01-10)
      Bachelor thesis
      Restricted access - author's decision

    • Experimental investigation of the impact of single droplets of non-Newtonian fluid 

      Yzaguirre Sánchez, Silvia-Luna (Universitat Politècnica de Catalunya / Technishe Universität Darmstadt, 2009)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      This study is devoted to the investigation of impact of a paint drop onto a thin liquid film. In particular the mechanism of bubble entrapment during drop impact will be studied. The study is motivated by the technology ...

    • FMCW lidar for multiple target sounding 

      Batet Torrell, Óscar; Dios Otín, Víctor Federico; Comerón Tejero, Adolfo (SPIE Press. The International Society for Optical Engineering, 2011)
      Conference report
      Restricted access - publisher's policy
      Continuous-Wave lidars are constantly evolving in order to achieve the best performances with low power and low cost. Frequency-modulated continuous-wave (FMCW) lidar is a well-known type of lidar used for solid-target ...

    • Influence of the Fukushima Dai-ichi nuclear accident on Spanish environmental radioactivity levels 

      Baeza, A.; Corbacho, J.A.; Rodríguez, Alicia; Galván, J.; García Tenorio, R.; Manjón, G.; Mantero, Juan; Vioque, I.; Arnold Arias, Dèlia; Grossi, Claudia; Serrano Carreño, M. Isabel; Valles Murciano, M. Isabel; Vargas Drechsler, Arturo (Elsevier, 2012-12)
      Article
      Restricted access - publisher's policy
      This paper presents measurements of the effect of the atmospheric radioactive release from the Fukushima Dai-ichi nuclear power station at three sites belonging to the Spanish environmental monitoring system. Measured ...