Exploració per tema "Pols"

Ara es mostren els items 1-20 de 31

    • Anàlisi de diferents tipus de sistemes làser pel processat de materials 

      Bosom Garcia, David (Universitat Politècnica de Catalunya, 2010-06)
      Projecte/Treball Final de Carrera
      Accés restringit per decisió de l'autor
      Aquest projecte estudia les característiques dels polsos emesos per tres sistemes làser destinats al processat de materials. La longitud d’ona dels tres sistemes es troba al voltant dels 1064nm, però les tecnologies ...

    • Assimilating spaceborne lidar dust extinction can improve dust forecasts 

      Escribano Alisio, Jeronimo; di Tomaso, Enza; Jorba Casellas, Oriol; Klose, Martina; Gonçalves Ageitos, María; Macchia, Francesca; Amiridis, Vassilis; Baars, Holger; Marinou, Eleni; Proestakis, Emmanouil; Urbanneck, Claudia; Althausen, Dietrich; Bühl, Johannes; Mamouri, Rodanthi-Elisavet; Pérez García-Pando, Carlos (European Geosciences Union (EGU), 2022-01-14)
      Article
      Accés obert
      Atmospheric mineral dust has a rich tri-dimensional spatial and temporal structure that is poorly constrained in forecasts and analyses when only column-integrated aerosol optical depth (AOD) is assimilated. At present, ...

    • Assimilation of MODIS Dark Target and Deep Blue observations in the dust aerosol component of NMMB-MONARCH version 1.0 

      di Tomaso, Enza; Schutgens, Nick A. J.; Jorba, Oriol; Pérez García-Pando, Carlos (European Geosciences Union (EGU), 2017-03-10)
      Article
      Accés obert
      A data assimilation capability has been built for the NMMB-MONARCH chemical weather prediction system, with a focus on mineral dust, a prominent type of aerosol. An ensemble-based Kalman filter technique (namely the local ...

    • Atmospheric dust modeling from meso to global scales with the online NMMB/BSC-Dust model - Part 2: Experimental campaigns in Northern Africa 

      Schladitz, A.; Esselborn, M.; Weinzierl, B.; Tesche, M.; Müller, D.; Washington, R.; Todd, M.C.; Nickovic, S.; Haustein, Karsten; Pérez García-Pando, Carlos; Baldasano Recio, José María; Jorba Casellas, Oriol; Basart, Sara; Miller, R.L.; Janjic, Z.; Black, T. (2012-03-23)
      Article
      Accés obert
      The new online NMMB/BSC-Dust model is intended to provide short to medium-range weather and dust forecasts from regional to global scales. The companion paper Pérez et al., 2011 develops the dust model parameterizations ...

    • Atmospheric dust modeling from meso to global scales with the online NMMB/BSC-Dust model – Part 1: model description, annual simulations and evaluation 

      Pérez García-Pando, Carlos; Haustein, Karsten; Jorba Casellas, Oriol; Janjic, Z.; Huneeus, N.; Baldasano Recio, José María; Black, T.; Basart, Sara; Nickovic, S.; Miller, R.L.; Perlwitz, J.P.; Schulz, M.; Thomson, M. (2011-06-01)
      Article
      Accés obert
      Abstract. We describe and evaluate the NMMB/BSC-Dust, a new dust aerosol cycle model embedded online within the NCEP Non-hydrostatic Multiscale Model (NMMB). NMMB is a further evolution of the operational Nonhydrostat ...

    • DEAR project: Lunar dust surface interactions, risk and removal investigations 

      Jalba, C.; Milev, P.; Schulz, P.; Pflug, A.; Ramm, P.; Gusland, O.; Ghitiu, I.; Jalba, R.; Magureanu, A.; Molenta, A.; Pantea, A.; Pantea, G.; Jalba, L.; Özdemir-Fritz, S.; Groemer, G.; Müller, A.; Steininger, H.; McKeown, D.; Gibson Kiely, F.; Hamilton, J. (Universitat Politècnica de Catalunya, 2022-04-29)
      Comunicació de congrés
      Accés obert
      The DEAR project (Dusty Environment Application Research) investigates the interaction between lunar regolith and surfaces and components relevant for lunar exploration. Based on the TUBS regolith simulant which is ...

    • Determinació de la separació de pèrdues en motors d'inducció trifàsics a partir del circuit equivalent i de les dades del catàleg 

      Ortiz Avila, Francisco (Universitat Politècnica de Catalunya, 2012-01-27)
      Projecte/Treball Final de Carrera
      Accés obert

    • Dust particle artifact detection and removal in retinal images 

      Sierra, E.; Marrugo Hernandez, Andrés Guillermo; Millán Garcia-Varela, M. Sagrario (2017-12-01)
      Article
      Accés restringit per política de l'editorial
      Retinal fundus cameras suffer from dust particles attaching to the sensor and lens, which manifest as small artifacts on the images. We propose a new strategy for the detection and removal of dust particle artifacts in ...

    • Effect of terrain relief on dust transport over complex terrains in West Asia 

      Vendrell, Lluís; Basart, Sara; Baldasano Recio, José María (Barcelona Supercomputing Center, 2017-05-04)
      Text en actes de congrés
      Accés obert
      This work investigates the impact of orography on dust transport using the multi-scale NMMB/BSC-Dust model. For this purpose, two model simulations at horizontal resolutions of 0.03º x 0.03º (Low-resolution; LR) and 0.3º ...

    • Evaluación de la valorización y recuperación de metales de cenizas y escorias de incineración de residuos sólidos urbanos: el caso del Área Metropolitana de Barcelona 

      García Hernando, Gabriel (Universitat Politècnica de Catalunya, 2018-04-27)
      Treball Final de Grau
      Accés obert
      Realización de un estudio sobre los métodos de recuperación de Zinc y Cobre de los Residuos urbanos mediante etapas de lixiviación e intercambio iónico.

    • How much soil dust aerosol is man-made? 

      Klose, Martina; Pérez García-Pando, Carlos (Barcelona Supercomputing Center, 2019-05-07)
      Text en actes de congrés
      Accés obert

    • Importance of intensity-to-phase coupling for water-window high-order-harmonic generation with few-cycle pulses 

      Teichmann, Stephan M.; Silva, Francisco; Cousin, Seth L.; Bieger, Jens (APS, 2015-06-12)
      Article
      Accés obert
      We present half-cycle cutoff features in the water window using high-order-harmonic generation (HHG) with two-cycle, carrier-envelope-phase-controlled pulses at 1.85 μm in a high-pressure neon target. A relative ...

    • Long-term characterisation of the vertical structure of the Saharan Air Layer over the Canary Islands using lidar and radiosonde profiles: implications for radiative and cloud processes over the subtropical Atlantic Ocean 

      Barreto, África; Cuevas, Emilio; García, Rosa D.; Carrillo, Judit; Prospero, Joseph M.; Basart, Sara (Copernicus Publications, 2022-01)
      Article
      Accés obert
      Every year, large-scale African dust outbreaks frequently pass over the Canary Islands (Spain). Here we describe the seasonal evolution of atmospheric aerosol extinction and meteorological vertical profiles on Tenerife ...

    • Magnetic Mars dust-removal technology 

      Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (springer-Verlag, 2019-02-04)
      Article
      Accés obert
      Environmental data recorded by the Mars exploration rovers show that the martian dust is magnetic containing mostly the strong magnetic mineral magnetite ( Fe3O4 ). On the other hand, it is known that dust settling onto ...

    • Magnetic traveling waves induced by mini-coils for sweeping dust of Mars solar arrays 

      Arias Montenegro, Francisco Javier (American Institute of Aeronautics and Astronautics (AIAA), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this work consideration is given to dust removal from surface of Mars solar arrays by harnessing the magnetic properties of the dust. Here, it is speculated a possible technique by which localized and properly spaced ...

    • Mediterranean intense desert dust outbreaks and their vertical structure based on remote sensing data 

      Gkikas, Antonis; Basart, Sara; Hatzianastassiou, Nikos; Marinou, Eleni; Amiridis, Vassilis; Kazadzis, Stelios; Pey, Jorge; Querol, Xavier; Jorba, Oriol; Gassó, Santiago; Baldasano, José M. (European Geosciences Union (EGU), 2016-07-15)
      Article
      Accés obert
      The main aim of the present study is to describe the vertical structure of the intense Mediterranean dust outbreaks, based on the use of satellite and surface-based retrievals/measurements. Strong and extreme desert dust ...

    • Mineral dust cycle in the Multiscale Online Nonhydrostatic AtmospheRe CHemistry model (MONARCH) version 2.0 

      Klose, Martina; Jorba Casellas, Oriol; Gonçalves Ageitos, María; Escribano Alisio, Jeronimo; Dawson, Matthew; Obiso, Vicenzo; di Tomaso, Enza; Basart, Sara; Montané Pinto, Gilbert; Macchia, Francesca; Ginoux, Paul; Guerschman, Juan; Prigent, Catherine; Huang, Yue; Kok, Jasper; Miller, Ron L.; Pérez García-Pando, Carlos (2021-10-25)
      Article
      Accés obert
      We present the dust module in the Multiscale Online Non-hydrostatic AtmospheRe CHemistry model (MONARCH) version 2.0, a chemical weather prediction system that can be used for regional and global modeling at a range of ...

    • On presolar stardust grains from CO classical novae 

      Iliadis, Christian; Downen, Lori N.; José Pont, Jordi; Nittler, Larry R.; Starrfield, Sumner (Institute of Physics (IOP), 2018-03-10)
      Article
      Accés obert
      About 30%–40% of classical novae produce dust 20–100 days after the outburst, but no presolar stardust grains from classical novae have been unambiguously identified yet. Although several studies claimed a nova paternity ...

    • Optimization and dust emissions analysis of the air jigging technology applied to the recycling of construction and demolition waste 

      Waskow, Regis P.; Dos Santos, Viviane L. G.; Ambrós, Weslei Monteiro; Hoffmann Sampaio, Carlos; Passuello, Ana; Tubino, Rejane Maria Candiota (2020-07-15)
      Article
      Accés obert
      This work aims to evaluate the use of the air jigging technique, a density-based separation technology commonly applied in mineral processing, to upgrade the quality of mixtures (density and geometric properties) that ...

    • Profiling of aerosol microphysical properties at several EARLINET/AERONET sites during the July 2012 ChArMEx/EMEP campaign 

      Granados Muñoz, María José; Navas Guzmán, Francisco; Guerrero Rascado, Juan Luis; Bravo Aranda, Juan Antonio; Binietoglou, Ioannis; Nepomuceno Pereira, Sergio; Basart Alpuente, Sara; Baldasano Recio, José María; Belegante, Livio; Chaikovsky, Anatoli; Comerón Tejero, Adolfo; D'Amico, Giuseppe; Muñoz Porcar, Constantino; Rodríguez, Alejandro; Sicard, Michaël; Nickovic, Slobodan; Papayannis, Alexander; Pappalardo, Gelsomina; Wandinger, Ulla; Alados Arboledas, Lucas (European Geosciences Union, 2016-06-09)
      Article
      Accés obert
      The simultaneous analysis of aerosol microphysical properties profiles at different European stations is made in the framework of the ChArMEx/EMEP 2012 field campaign (9-11 July 2012). During and in support of this campaign, ...