Now showing items 1954-1973 of 72656

  • 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 ...
  • A new generation of nautical publications and aids to navigation 

    Carbajosa, Jesús (2007-11-22)
    Audiovisual
    Open Access
  • A new graph matching method for point-set correspondence using the EM algorithm and Softassign 

    Sanromà Güell, Gerard; Alquézar Mancho, René; Serratosa Casanelles, Francesc (2012)
    Article
    Restricted access - publisher's policy
    Finding correspondences between two point-sets is a common step in many vision applications (e.g., image matching or shape retrieval). We present a graph matching method to solve the point-set correspondence problem, which ...
  • A new high-efficiency single-phase transformerless PV inverter topology 

    Kerekes, Tamas; Teodorescu, Remus; Rodríguez Cortés, Pedro; Vázquez Guzmán, Gerardo; Aldabas Rubira, Emiliano (IEEE Press. Institute of Electrical and Electronics Engineers, 2011-01)
    Article
    Open Access
    There is a strong trend in the photovoltaic inverter technology to use transformerless topologies in order to acquire higher efficiencies combining with very low ground leakage current. In this paper, a new topology, ...
  • A new high-pressure triaxial apparatus for inducing and tracking hydro-mechanical degradation of clayey rocks 

    Pineda Jiménez, Jubert Andrés; Romero Morales, Enrique Edgar; Alonso Pérez de Agreda, Eduardo; Pérez Revilla, Tomás (2014-11)
    Article
    Restricted access - publisher's policy
    This paper presents the development of a new high-pressure triaxial apparatus specifically prepared for inducing and tracking the degradation of clayey rocks. Total suction—used to induce the hydraulic degradation—is applied ...
  • A new hybrid GA-PSO method for solving multi-period inventory routing problem with considering financial decisions 

    Rabbani, Masoud; Baghersad, Milad; Jafari, Ruholla (School of Industrial and Aeronautic Engineering of Terrassa (ETSEIAT). Universitat Politècnica de Catalunya (UPC), 2013-12)
    Article
    Open Access
    Integration of various logistical components in supply chain management, such as transportation, inventory control and facility location are becoming common practice to avoid sub-optimization in nowadays’ competitive ...
  • A new integral management model and evaluation method to enhance sustainability of renewable energy projects for energy and sanitation services 

    Lillo, Pau; Ferrer Martí, Laia; Fernández-Baldor, Álvaro; Ramírez, Benito (2015)
    Article
    Restricted access - publisher's policy
    Autonomous systems based on the use of renewable energy (RE) have proven suitable for providing energy and sanitation services to isolated communities. However, most of these projects fail due to managerial weaknesses. ...
  • A new kind of type I supernovae? 

    Isern Vilaboy, Jordi; Bravo Guil, Eduardo; Domínguez, Inmaculada (Istituto Nazionale di Astrofisica, 2000-12)
    Article
    Open Access
    In this paper we examine the consequences of the propagation of a slow deflagration front through a C-0 white dwarf that leads to the formation of a marginally bound remnant. This situation corresponds to the transition ...
  • A new laboratory radio frequency identification (RFID) system for behavioural tracking of marine organisms 

    Sardà Amills, Francesc; Aguzzi, Jacopo; Sbragaglia, Valerio; Sarriá Gandul, David; García, José Antonio; Costa, Corrado; Río Fernandez, Joaquín del; Manuel Lázaro, Antonio; Menesatti, Paolo (2011-10-11)
    Article
    Open Access
    Radio frequency identification (RFID) devices are currently used to quantify several traits of animal behaviour with potential applications for the study of marine organisms. To date, behavioural studies with marine ...
  • A new language is born 

    Mcgloin, Patrick (Centre de Política de Sòl i Valoracions, 2004-09)
    Conference report
    Open Access
  • A New learning experience: voluntary preparatory course for the bachelor’s degree in engineering 

    Botey, Muriel; Alcaraz, Olga (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2012-03)
    Article
    Open Access
    This paper reports on a new experience carried out at school associated with the Technical University of Catalonia, Universitat Politècnica de Catalunya (UPC) in September 2010. The aim is to describe the organization, ...
  • A new least-squares approximation of affine mappings for sweep algorithms 

    Roca Navarro, Francisco Javier; Sarrate Ramos, Josep; Huerta, Antonio (2010-06)
    Article
    Open Access
    This paper presents a new algorithm to generate hexahedral meshes in extrusion geometries. Several algorithms have been devised to generate hexahedral meshes by projecting the cap surfaces along a sweep path. In all of ...