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Now showing items 21-40 of 151214

  • Optimal feeder flow control for grid connected microgrids 

    Bullich Massagué, Eduard; Aragüés Peñalba, Mònica; Prieto Araujo, Eduardo; Sumper, Andreas; Caire, Raphael (2019-11-01)
    Article
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    The optimal management of distributed energy resources is one of theexisting challenges for the deployment of microgrids. When microgrids op-erate under feeder flow control mode, trying to maintain a constant self-consumption, ...

  • Increasing sustainability on the metallurgical industry by integration of membrane nanofiltration processes: acid recovery 

    López Rodríguez, Julio; Reig i Amat, Mònica; Gibert Agulló, Oriol; Cortina Pallás, José Luís (2019-11-01)
    Article
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    The metallurgical industry generates large volumes of toxic effluents characterised, generally, by high acidity and a noticeable content of metals (Fe, Cu and Zn) and non-metals (As, Sb, Bi). The toxicity of these streams ...

  • Extreme, wintertime Saharan dust intrusion in the Iberian Peninsula: Lidar monitoring and evaluation of dust forecast models during the February 2017 event 

    Fernández, Alfonso J.; Sicard, Michäel; Costa, Maria J.; Guerrero-Rascado, Juan L.; Gómez-Amo, José L.; Molero, Francisco; Barragán, Rubén; Basart, Sara; Bortoli, Daniele; Bedoya-Velásquez, Andrés E.; Utrillas, María P.; Salvador, Pedro; Granados-Muñoz, María J.; Potes, Miguel; Ortiz-Amezcua, Pablo; Martínez-Lozano, José A.; Artíñano, Begoña; Muñoz-Porcar, Constantino; Salgado, Rui; Román, Roberto; Rocadenbosch, Francesc; Salgueiro, Vanda; Benavent-Oltra, José A.; Rodríguez-Gómez, Alejandro; Alados-Arboledas, Lucas; Comerón, Adolfo; Pujadas, Manuel (Elsevier, 2019-11-01)
    Article
    Open Access
    An unprecedented extreme Saharan dust event was registered in winter time from 20 to 23 February 2017 over the Iberian Peninsula (IP). We report on aerosol optical properties observed under this extreme dust intrusion ...

  • Pseudoplastic fluid flows for different Prandtl numbers: steady and time-dependent solutions 

    Aguirre, A.; Castillo, Ernesto; Cruchaga, Marcela A.; Codina, Ramon; Baiges Aznar, Joan (2019-11)
    Article
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    In this work, a variational multiscale (VMS) finite element formulation is used to approximate numerically the natural convection in square cavity with differentially heated from sidewalls problem for Newtonian and power-law ...

  • Multicast routing from a set of data centers in elastic optical networks 

    Molnár, Miklós; Le, Dinh Danh; Perelló Muntan, Jordi; Solé Pareta, Josep; McArdle, Conor (2019-11)
    Article
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    This paper introduces the Multi-Server Multicast (MSM) approach for Content Delivery Networks (CDNs) delivering services offered by a set of Data Centers (DCs). All DCs offer the same services. The network is an Elastic ...

  • Effect of aggregate type on the fatigue durability of asphalt mixtures 

    Valdés Vidal, Gonzalo A.; Calabi, Alejandra; Sánchez Aloso, Elsa; Miró Recasens, José Rodrigo (Elsevier, 2019-11)
    Article
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    The effect of aggregate type on the fatigue behaviour of asphalt mixtures is an important variable for ensuring greater durability of pavements over time. This study presents the main results of an assessment of the effect ...

  • Sustainability assessment of trenches including the new eco-trench: a multi-criteria decision-making tool 

    Casanovas Rubio, Maria del Mar; Pujadas Álvarez, Pablo; Pardo Bosch, Francesc; Blanco Álvarez, Ana; Aguado de Cea, Antonio (2019-11)
    Article
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    Narrow trenches are a common technique for the installation of utility pipelines of small diameter. Theexcavated soil is not always appropriate as landfill and, in those cases, an appropriate soil from some-where else (ex. ...

  • Water societal metabolism in the Yucatan Peninsula. The impact of climate change on the recharge of groundwater by 2030 

    Rodríguez-Huerta, Edgar; Rosas Casals, Martí; Hernández Terrones, Laura Margarita (2019-10-20)
    Article
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    The demographic and economic growth in Yucatan peninsula (YP) in recent years has caused changes in the hydrological response and flow of the water cycle. The growth effects and its impact on society are poorly understood. ...

  • SIMP-ALL: a generalized SIMP method based on the topological derivative concept 

    Ferrer Ferré, Àlex (John Wiley & sons, 2019-10-19)
    Article
    Open Access
    Topology optimization has emerged in the last years as a promising research fieldwith a wide range of applications. One of the most successful approaches, theSIMP method, is based on regularizing the problem and proposing ...

  • Improved rare earth elements recovery from fluorescent lamp wastes applying supported liquid membranes to the leaching solutions 

    Pavón Regaña, Sandra; Fortuny Sanromá, Agustín; Coll Ausió, Mª Teresa; Sastre Requena, Ana María (2019-10-01)
    Article
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    Due to the continuously growing demand of rare earths in advanced technologies, end-of-life fluorescent lamps may become feasible rare earth elements (REEs) raw materials, reducing thus their supply risk. Considering acid ...

  • Emergency aware congestion control for smart grid neighborhood area networks 

    Astudillo León, Juan Pablo; Cruz Llopis, Luis Javier de la (Elsevier, 2019-10-01)
    Article
    Restricted access - confidentiality agreement
    The evolution of traditional electricity distribution infrastructures towards Smart Grid networks has generated the need to carry out new research. There are many fields that have attracted the attention of researchers, ...

  • Ground/space, passive/active remote sensing observations coupled with particle dispersion modelling to understand the inter-continental transport of wildfire smoke plumes 

    Sicard, Michaël; Granados Muñoz, María José; Alados Arboledas, Lucas; Barragán Cuesta, Rubén; Bedoya Velásquez, Andrés Esteban; Benavent Oltra, José Antonio; Bortoli, D.; Comerón Tejero, Adolfo; Cordoba Jabonero, Carmen; Costa, Maria João; del Aguila, Ana; Fernández García, Alfonso Javier; Guerrero Rascado, Juan Luis; Jorba Casellas, Oriol; Molero, Francisco; Muñoz Porcar, Constantino; Papagiannopoulos, N.; Pujadas Cordero, Manuel; Rocadenbosch Burillo, Francisco; Rodríguez Gómez, Alejandro Antonio; Sola Salvatierra, Yolanda (2019-10-01)
    Article
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    During the 2017 record-breaking burning season in Canada/United States, intense wild fires raged during the first week of September in the Pacific northwestern region (British Columbia, Alberta, Washington, Oregon, Idaho, ...

  • Unemployment expectations: A socio-demographic analysis of the effect of news 

    Soric, Petar; Lolic, Ivana; Claveria González, Oscar; Monte Moreno, Enrique; Torra Porras, Salvador (2019-10-01)
    Article
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    In this study, we evaluate the effect of news on consumer unemployment expectations for sixteen socio-demographic groups. To this end, we construct an unemployment sentiment indicator and extract news about several economic ...

  • Modelling flood propagation in the service galleries of a nuclear power plant 

    Bladé i Castellet, Ernest; Sanz Ramos, Marcos; Dolz Ripollès, Josep; Expósito Pérez, Juan Manuel; Sánchez Juny, Martí (2019-10)
    Article
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    In the context of the stress tests that have to be applied to nuclear power plants, this work presents the study of the flooding processes of the service galleries of a nuclear plant caused by a hypothetical failure of ...

  • Variational approach to relaxed topological optimization: closed form solutions for structural problems in a sequential pseudo-time framework 

    Oliver Olivella, Xavier; Yago Llamas, Daniel; Cante Terán, Juan Carlos; Lloberas Valls, Oriol (2019-10)
    Article
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    The work explores a specific scenario for structural computational optimization based on the following elements: (a) a relaxed optimization setting considering the ersatz (bi-material) approximation, (b) a treatment based ...

  • Assessing the impact of sea level rise on port operability using LiDAR-derived digital elevation models 

    Gracia Garcia, Vicente; Sierra Pedrico, Juan Pablo; Gómez, Marta; Pedrol, Mònica; Sampé, Sara; García León, Manuel; Gironella Cobos, Xavier (2019-10)
    Article
    Restricted access - publisher's policy
    One of the main consequences of climate change is the sea level rise (SLR), which impacts coastal areas affecting many infrastructures, particularly seaports, whose operations may be jeopardized. In this paper, a methodological ...

  • Parallel 3-D marine controlled-source electromagnetic modelling using high-order tetrahedral Nédélec elements 

    Castillo-Reyes, Octavio; de la Puente, Josep; García-Castillo, Luis Emilio; Cela, Jose M. (Oxford University Press, 2019-10)
    Article
    Open Access
    We present a parallel and high-order Nédélec finite element solution for the marine controlled-source electromagnetic (CSEM) forward problem in 3-D media with isotropic conductivity. Our parallel Python code is implemented ...

  • An improved analysis of mesoscale convective systems in the western Mediterranean using weather radar 

    Rigo, Tomeu; Berenguer Ferrer, Marc; Llasat Botija, María del Carmen (2019-10)
    Article
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    This article studies the life cycle of the well-organised mesoscale convective systems (MCSs) that affect Catalonia and surrounding regions, using a weather radar composite with sophisticated corrections and lightning data ...

  • Efficient aeroelastic analysis of inflatable structures using enhanced potential flow aerodynamics 

    Ortega, Enrique; Flores Le Roux, Roberto Maurice; Cuartero Zaragoza, Eric; Oñate Ibáñez de Navarra, Eugenio (2019-10)
    Article
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    An efficient method for the aeroelastic analysis of wind effects on inflatable structures is presented. The solution scheme is staggered and uses an explicit finite-element structural solver and potential flow aerodynamics. ...

  • The lid-driven right-angled isosceles triangular cavity flow 

    An, Bo; Bergadà Granyó, Josep Maria; Mellibovsky Elstein, Fernando (2019-09-25)
    Article
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    We employ lattice Boltzmann simulation to numerically investigate the two-dimensional incompressible flow inside a right-angled isosceles triangular enclosure driven by the tangential motion of its hypotenuse. While the ...