Now showing items 1943-1962 of 72656

  • A new continuous-discontinuous damage model: cohesive cracks via an accurate energy-transfer process 

    Tamayo Mas, Elena; Rodríguez Ferran, Antonio (2014-02)
    Article
    Open Access
    A new continuous-discontinuous strategy to describe failure of quasi-brittle materials is presented. For the early stages of the failure process, a gradient-enhanced model based on smoothed displacements is employed. As ...
  • A new cross-layer attack to TCP in cognitive radio networks 

    León Abarca, Olga; Hernández Serrano, Juan; Soriano Ibáñez, Miguel (2009)
    Conference report
    Restricted access - publisher's policy
  • A new CVD diamond mosaic-detector for (n, ) cross-section measurements at the n_TOF experiment at CERN 

    Weiss, Christina; Griesmayer, E.; Guerrero, C.; Altstadt, S.; Andrzejewski, J.; Audouin, L.; Badurek, G.; Barbagallo, M.; Bécares, V.; Becvar, F.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Riego Pérez, Albert (2013)
    Article
    Restricted access - publisher's policy
    At then_TOFexperimentatCERNadedicatedsingle-crystalchemicalvapordeposition(sCVD)Diamond Mosaic-Detectorhasbeendevelopedfor(n,α) cross-sectionmeasurements.Thedetector,characterized by anexcellenttimeandenergyresolution, ...
  • A new CVD diamond mosaic-detector for (n, a) cross-section measurements at the n_TOF experiment at CERN 

    Weiß, C.; Griesmayer, E.; Guerrero, C.; Altstadt, S.; Andrzejewski, J.; Audouin, L.; Badurek, G.; Barbagallo, M.; Bécares, V.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Hernández-Prieto, A.; Riego Pérez, Albert (2013-08-02)
    Article
    Restricted access - publisher's policy
    At then_TOFexperimentatCERNadedicatedsingle-crystalchemicalvapordeposition(sCVD)Diamond Mosaic-Detectorhasbeendevelopedfor(n,α) cross-sectionmeasurements.Thedetector,characterized by anexcellenttimeandenergyresolution, ...
  • A new damage model based on non-local displacements 

    Rodríguez Ferran, Antonio; Morata, I; Huerta, Antonio (2005-04)
    Article
    Open Access
    A new non-local damage model is presented. Non-locality (of integral or gradient type) is incorporated into the model by means of non-local displacements. This contrasts with existing damage models, where a non-local strain ...
  • A new damage model for structures subjected to cyclic loads 

    Barbat Barbat, Horia Alejandro; Oller Martínez, Sergio Horacio; Paredes, Jairo Andrés (2010)
    Conference report
    Restricted access - publisher's policy
    The structures subjected to dynamic loads often show alternative tensioncompression states stress; in such a case, even if certain damage (fracture) is reached during the tension cycle, the structure should maintain its ...
  • A new design of high precision solar microsensor for satellite aplications 

    Delgado, Francisco; Ortega Villasclaras, Pablo Rafael; Lopez Tarrida, Cristina; Garcia Ortega, Juan; Angulo, Manuel; Quero Reboul, Jose Manuel (IEEE, 2010)
    Conference report
    Restricted access - publisher's policy
    This paper shows the design and calibration of an improved miniaturized two-axis sun sensor for satellite attitude control. The proposed new structure is based on a previous sun sensor structure by adding multiple sensing ...
  • A new device laboratory: Experimental validation 

    Pujol Vázquez, Gisela; Acho Zuppa, Leonardo; Nápoles Alberro, Amelia; Estrada, J.; Santos, D.; Pérez Gracia, María de la Vega (2013)
    Conference lecture
    Open Access
  • A new digital predictive predistorter for behavioral power amplifier linearization 

    Montoro López, Gabriel; Gilabert Pinal, Pere Lluís; Bertran Albertí, Eduardo; Cesari Bohigas, Albert; Silveira, Daniel D. (Institute of Electrical and Electronics Engineers (IEEE), 2007-06)
    Article
    Open Access
    This letter presents a new digital adaptive predistorter (PD) for power amplifier (PA) linearization based on a nonlinear auto-regressive moving average (NARMA) structure. The distinctive characteristic of this PD is ...
  • A new efficient strategy to simulate particle breakage in DEM analyses 

    Ciantia, Matteo Oryem; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio; Calvetti, Francesco (2014)
    Conference report
    Restricted access - publisher's policy
    The discrete element method (DEM) is increasingly gaining acceptance as a modelling tool for engineering problems of direct geotechnical relevance. One area for which the method seems naturally well adapted is that of ...
  • A new electronic control system for unmanned underwater vehicles 

    Molina Molina, J.C.; Guerrero González, A.; Gilabert, J. (SARTI, 2015)
    Article
    Open Access
    In this paper a new electronic control system for unmanned underwater vehicles is presented. This control system is characterized by a distribution in control over two network of type CANBus and Ethernet. This new ...
  • A new epoxy based layered silicate nanocomposite using a hyperbranched polymer: study of the curing reaction and nanostructure development 

    Cortés Izquierdo, M. Pilar; Fraga Rivas, Iria; Calventus Solé, Yolanda; Hutchinson, John M. (2013)
    Conference lecture
    Restricted access - publisher's policy
    Polymer layered silicate (PLS) nanocomposites based on epoxy resins have been widely studied previously [1], but the anticipated dramatic enhancement of their properties has not yet been realised. One approach to overcoming ...
  • A new epoxy-based layered silicate nanocomposite using a hyperbranched polymer: study of the curing reaction and nanostructure development 

    Cortés Izquierdo, M. Pilar; Fraga Rivas, Iria; Calventus Solé, Yolanda; Román Concha, Frida Rosario; Hutchinson, John M.; Ferrando Piera, Francesc (2014-03-01)
    Article
    Open Access
    Polymer layered silicate (PLS) nanocomposites have been prepared with diglycidyl ether of bisphenol-A (DGEBA) epoxy resin as the matrix and organically modified montmorillonite (MMT) as the clay nanofiller. Resin-clay ...
  • A new estimation of the lower error bound in balanced truncation method 

    Ha Binh, Minh; Batlle Arnau, Carles; Fossas Colet, Enric (2014-08-01)
    Article
    Open Access
    For a single-input/single-output (SISO) linear time-invariant dynamical system, the standard H-infinity-norm lower error bound of balanced truncation method is parallel to G(s) - G(r)(s)parallel to(H infinity) >= sigma(r+1), ...
  • A new flexible ONU design for UDWDM-PON with coherent transceivers and smart activation process 

    Segarra Mullerat, Josep; Sales Zaragoza, Vicente; Prat Gomà, Josep Joan; Pous, R. (2014)
    Conference report
    Restricted access - publisher's policy
    We present a novel ONU architecture for coherent UDWDM-PON with randomly distributed ONU wavelengths. The ONU is built with one or two lasers exhibiting simple limited thermal tunability in a specific optical band, where ...
  • A new forecasting approach for the hospitality industry 

    Claveria, Oscar; Monte Moreno, Enrique; Torra Porras, Salvador (2015-10-01)
    Article
    Open Access
    Purpose – This study aims to apply a new forecasting approach to improve predictions in the hospitality industry. To do so, the authors developed a multivariate setting that allows the incorporation of the cross-correlations ...
  • A New Formal Context for Symmetric Dependencies 

    Baixeries i Juvillà, Jaume (2011)
    Conference report
    Open Access
    In this paper we present a new formal context for symmetric dependencies. We study its properties and compare it with previous approaches. We also discuss how this new context may open the door to solve some open problems ...
  • A new gene-based association test for genome-wide association studies 

    Buil, Alfonso; Martínez-Pérez, Angel; Perera Lluna, Alexandre; Rib, Leonor; Caminal Magrans, Pere; Soria, José Manuel (2009-12-15)
    Article
    Open Access
    Genome-wide association studies are widely used today to discover genetic factors that modify the risk of complex diseases. Usually, these methods work in a SNP-by-SNP fashion. We present a gene-based test that can be ...
  • A new general-purpose method for the computation of the interval availability distribution 

    Carrasco, Juan A. (2013-11-18)
    Article
    Open Access
    We develop a new randomization-based general-purpose method for the computation of the interval availability distribution of systems modeled by continuous-time Markov chains (CTMCs). The basic idea of the new method is ...
  • A new generation of early warning systems for coastal risk: the iCoast project 

    Gracia Garcia, Vicente; García León, Manuel; Sánchez-Arcilla Conejo, Agustín; Gault, Jeremy; Oller, Pere; Fernández, Juan; Sairouni, Abdel; Cristofori, Elena; Toldrà, Ramón (2014)
    Conference lecture
    Open Access
    A new coastal early warning system CEWS called iCoast for the NW Mediterranean Sea is under development. It is composed of three numerical modules: meteorological, hydrodynamic and morphodynamic. The CEWS is designed for ...