Ara es mostren els items 1-12 de 50

    • Phenomenology of ultrafine particle concentrations and size distribution across urban Europe 

      Trechera Ruiz, Pedro; Reche Andúgar, Cristina; Perez Lozano, Noemi; Savadkoohi, Marjan; Beddows, David; Marchand, N.; Mihalopoulos, Nikos; Jokiniemi, J.; Eleftheriadis, Kostas; Gerwig, Hubert; Hoffmann, Barbara; Hentrich, Doreen; Petaja, Tuukka; Alastuey Urós, Andrés (Elsevier, 2023-02)
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      Accés obert
      The 2017–2019 hourly particle number size distributions (PNSD) from 26 sites in Europe and 1 in the US were evaluated focusing on 16 urban background (UB) and 6 traffic (TR) sites in the framework of Research Infrastructures ...
    • The variability of mass concentrations and source apportionment analysis of equivalent black carbon across urban Europe 

      Savadkoohi, Marjan; Pandolfi, Marco; Reche Andúgar, Cristina; Niemi, Jarkko V.; Mooibroek, Dennis; Titos Vela, Gloria; Green, David C.; Tremper, Anja H.; Hueglin, Christoph; Liakakou, Eleni; Mihalopoulos, Nikos; Stavroulas, Iasonas; Artiñano, Begoña; Coz, Esther; Alados Arboledas, Lucas; Beddows, David; Riffault, Véronique; de Brito, Joel F. (Elsevier, 2023-08-01)
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      Accés obert
      This study analyzed the variability of equivalent black carbon (eBC) mass concentrations and their sources in urban Europe to provide insights into the use of eBC as an advanced air quality (AQ) parameter for AQ standards. ...
    • Corporate social responsibility and total factor productivity: the case of European mining industry 

      Yousefian, Mohammad; Bascompta Massanes, Marc; Sanmiquel Pera, Lluís; Vintró Sánchez, Carla; Sidki Rius, Nor (2024-02-20)
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      Accés obert
      The aim of this research is to investigate the effect of corporate social responsibility (CSR) on total factor productivity (TFP) in the European mining industry, considering micro- and macroeconomic indicators of the ...
    • Drivers of divergent trends in tropospheric ozone hotspots in Spain, 2008–2019 

      Massagué Obradors, Jordi; Escudero Tellechea, Miguel; Alastuey Urós, Andrés; Monfort Gimeno, Eliseo; Gangoiti Bengoa, Gotzon; Petetin, Hervé; Pérez García-Pando, Carlos; Querol Carceller, Xavier (Springer Netherlands, 2024)
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      Accés obert
      This study aimed to investigate the causes of contrasting ozone (O3) trends in Spanish O3 hotspots between 2008 and 2019, as documented in recent studies. The analysis involved data on key O3 precursors, such as nitrogen ...
    • Constructing transferable and interpretable machine learning models for black carbon concentrations 

      Fung, Pak Lun; Savadkoohi, Marjan; Zaidan, Martha Arbayani; Niemi, Jarkko V.; Timonen, Hilkka; Pandolfi, Marco; Alastuey, Andres; Querol Carceller, Xavier; Hussein, Tareq; Petaja, Tuukka (Elsevier, 2024-02-01)
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      Accés obert
      Black carbon (BC) has received increasing attention from researchers due to its adverse health effects. However, in-situ BC measurements are often not included as a regulated variable in air quality monitoring networks. ...
    • A comparative study of quartz and potassium feldspar flotation process using different chemical reagents 

      Mohanty, Kalyani; Oliva Moncunill, Josep; Alfonso Abella, María Pura; Hoffmann Sampaio, Carlos; Anticoi Sudzuki, Hernán Francisco (2024-02-04)
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      Accés obert
      An improved method for producing high-purity quartz (Qtz) and potassium feldspar (Kfs) concentrates was developed using various chemical reagents. Froth flotation experiments on a Qtz–Kfs mixture showed that quartz could ...
    • Data mining of accidents in Spanish underground mines in the period 2003–2021 caused by a collision with a moving object 

      Sanmiquel Pera, Lluís; Rossell Garriga, Josep Maria; Bascompta Massanes, Marc; Vintró Sánchez, Carla; Yousefian, Mohammad (Elsevier Ltd, 2024-01-30)
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      Accés obert
      Underground mining is currently one of the Spanish economic sectors with the worst accident rates. Besides, the most frequent type of accident, and with the most serious consequences, is the one in which the injured worker ...
    • Microflow injection analysis based on modular 3D platforms and colorimetric detection for Fe(III) monitoring in a wide concentration range 

      Ricart Fort, David; Dorado Castaño, Antonio David; Lao Luque, Concepción; Baeza Labat, Mireia (Springer Nature, 2023-12-02)
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      Accés obert
      A modular microflow injection analysis (microFIA) system for the determination of Fe(III) in a bioleaching reactor has been designed, developed and validated. The different modules of the analyzer (mixer, diluter, disperser ...
    • Viability of bauxite deposits from Catalonia (Spain) for ceramic applications 

      Martínez Alcalá, Arnau; Garcia Valles, Maite; Alfonso Abella, María Pura (2023-10-04)
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      Accés obert
      This study provides a characterization of materials from wastes and outcrops of two inactive bauxite mines located close to Sant Joan de Mediona and Peramola, Spain. Mineralogy was determined via powder X-ray diffraction ...
    • Mass transfer vectors for nitric oxide removal through biological treatments 

      Cubides Páez, David Fernando; Guimerà Villalba, Xavier; Abasolo Zabalo, Nerea; Torrell Galceran, Helena; Jubany Güell, Irene; Gamisans Noguera, Javier (Springer, 2023-10-02)
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      Accés obert
      The reduction of nitric oxide (NO) emissions to atmosphere has been recently addressed using biological technologies. However, NO removal through bioprocesses is quite challenging due to the low solubility of NO in water. ...
    • Assessing ozone abatement scenarios in the framework of the Spanish ozone mitigation plan 

      Petetin, Hervé; Guevara Vilardell, Marc; Garatachea Solé, Roger; López Coronado, Franco Rodrigo; Oliveira, Kevin de; Enciso, Santiago; Jorba Casellas, Oriol; Querol Carceller, Xavier; Massagué Obradors, Jordi; Alastuey Urós, Andrés; Pérez García-Pando, Carlos (Elsevier, 2023-12-01)
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      Accés obert
      Tropospheric ozone (O3) is a secondary air pollutant that affects human health, vegetation and climate, especially in Mediterranean countries such as Spain. In order to tackle this long-standing issue, the Spanish government ...
    • Ambient air particulate total lung deposited surface area (LDSA) levels in urban Europe 

      Liu, Xiansheng; Hadiatullah, Hadiatullah; Zhang, Xun; Trechera Ruiz, Pedro; Savadkoohi, Marjan; Garcia Marlès, Meritxell; Reche, Cristina; Perez Lozano, Noemi; Beddows, David; Salma, Imre; Thén, Wanda; Kalkavouras, Panayiotis (Elsevier, 2023-11-10)
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      Accés obert
      This study aims to picture the phenomenology of urban ambient total lung deposited surface area (LDSA) (including head/throat (HA), tracheobronchial (TB), and alveolar (ALV) regions) based on multiple path particle dosimetry ...