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  • Open Access Catalan; Valencian
    Authors: 
    Flotats Ripoll, Xavier; Riba Romeva, Carles;
    Country: Spain

    Com a continuació d’un article anterior publicat a quaderns agraris sobre la relació entre energia i alimentació, en aquest article s’analitzen una sèrie de factors que afecten la transició a un sistema alimentari sostenible i un sistema energètic renovable, fent èmfasi...

  • Open Access
    Authors: 
    Paula Gómez Duran; Eva Mohedano; Kevin McGuinness; Xavier Giro-i-Nieto; Noel E. O'Connor;
    Publisher: Association for Computing Machinery (ACM)
    Countries: Ireland, Spain, Ireland

    Evaluating image retrieval systems in a quantitative way, for example by computing measures like mean average precision, allows for objective comparisons with a ground-truth. However, in cases where ground-truth is not available, the only alternative is to collect feedb...

  • Open Access Spanish; Castilian
    Authors: 
    Seguí Amórtegui, Luis Alberto;
    Publisher: Universitat Politècnica de Catalunya
    Country: Spain

    El objetivo principal de esta tesis es el desarrollo de una metodología para el análisis técnico-económico de los Sistemas de Regeneración y Reutilización de Aguas Residuales (SRRAR). La metodología se fundamenta en la aplicación de técnicas para la evaluación de proyec...

  • Restricted English
    Authors: 
    Zhang, Ningning; Arroyo Alvarez de Toledo, Marcos; Ciantia, Matteo Oryem; Gens Solé, Antonio;
    Publisher: ITASCA Consulting Group
    Country: Spain

    One obvious characteristic of granular grains is that their surface is not smooth, especially when observed at smaller scales. Some advanced experiment imaging methods such as optical interferometry, scanning electron microscopy and atomic force microscopy have been dev...

  • Open Access English
    Authors: 
    Castro Pérez, Jordi;
    Country: Spain

    Multiple variable splitting is a general technique for decomposing problems by using copies of variables and additional linking constraints that equate their values. The resulting large optimization problem can be solved with a specialized interior-point method that exp...

  • Open Access
    Authors: 
    José N. Pérez-Asensio; Juan C. Larrasoaña; Elias Samankassou; Francisco Javier Sierro; Daniel García-Castellanos; Gonzalo Jiménez-Moreno; Ángel Salazar; Josep Maria Salvany; Santiago Ledesma; M. Pilar Mata; +2 more
    Publisher: Geological Society of America
    Countries: Switzerland, Spain, Switzerland

    The Gibraltar Arc is a complex tectonic region, and several competing models have been proposed to explain its evolution. We studied the sedimentary fill of the Guadalquivir Basin to identify tectonic processes that were occurring when the reopening of the Strait of Gib...

  • Open Access English
    Authors: 
    Giorgio Anitori; Joan R. Casas; Michel Ghosn;
    Country: Spain

    The accuracy of bridge system safety evaluations and reliability assessments obtained through refined structural and finite element analyses depends not only on the accuracy of the structural model itself but also on the proper modelling of the maximum traffic loads. Wh...

  • Open Access Spanish; Castilian
    Authors: 
    Cañadas Lorenzo, Juan Carlos;
    Publisher: Universitat Politècnica de Catalunya
    Country: Spain

    A comparative study of the different relaxations present in amorphous and partially crystallized poly(ethylene terephthalate) (PET) and poly(ethylene-2,6-naphthalene dicarboxylate) (PEN) have been carried out by thermally stimulated depolarization currents (TSDC), therm...

  • Open Access
    Authors: 
    Hossein Kamran Haghighi; Mehdi Irannajad; Agustin Fortuny; Ana Maria Sastre;
    Country: Spain

    Non-dispersive selective extraction of Ge(IV) tartrates was carried out from simulated fly ash solutions containing heavy metals through supported liquid membranes (SLM). The optimum transport was obtained using a PTFE membrane containing Alamine 336 5%v/v in the condit...

  • Restricted English
    Authors: 
    Stephen, Stefie; Zangelmi Júnior, Ernesto; Gettu, Ravindra; Aguado de Cea, Antonio; Kumar, Vaishnav;
    Country: Spain

    The characterization of the complete uniaxial compressive stress-strain curve of concrete is crucial for a more rational and reliable design of concrete structures. However, without intrinsic knowledge of the influence of different experimental control variables and the...