Exploració per títol

Ara es mostren els items 5449-5468 de 245842

    • 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
      Accés restringit per política de l'editorial
      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
      Accés restringit per política de l'editorial
      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
      Accés obert
      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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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 deep reinforcement learning architecture for autonomous UAVs 

      Muñoz Ferran, Guillem (Universitat Politècnica de Catalunya, 2018-09-07)
      Treball Final de Grau
      Accés obert
      Recent improvements in computation and algorithmic research, together with the rising era of Big Data, have allowed Artificial Intelligence increase its popularity within masses. The recent publication of the Deep Q-Network ...

    • 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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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)
      Comunicació de congrés
      Accés obert

    • 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
      Accés obert
      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 distribution to do statistics on k-ary trees 

      Cases Muñoz, Rafael; Díaz Cort, Josep; Martínez Parra, Conrado (1990-04-02)
      Report de recerca
      Accés obert
      In this paper we study distributions on k-ary trees, which from the point of doing statistics on trees, they behave in a more realistic way than the usual uniform distribution. In particular, we choose a distribution for ...

    • A new double curved element for technical textile analysis with bending resistance 

      Hegyi, Dezsö (CIMNE, 2011)
      Text en actes de congrés
      Accés obert
      A new double curved spatial element was developed to analyze textile structures. It has a bending resistance beside the inplane stiffness. The element is based on a 8-node double curved membrane element1. To find the ...

    • A new double-porosity macroscopic model of bentonite free swelling 

      Navarro Gámir, Vicente; Cabrera Soto, Virginia; de la Morena Borja, Gema; Asensio Sánchez, Laura; Yustres Real, Ángel; Torres Serra, Joel (2022-08)
      Article
      Accés obert
      A macroscopic model based on a double-porosity approach is proposed to simulate the swelling caused by the subdivision of particles and aggregates that occurs when bentonites are hydrated under a high water content and low ...

    • A new dynamic repositioning approach for bike sharing systems 

      Jiménez Meroño, Enrique; Soriguera Martí, Francesc (Elsevier, 2020)
      Article
      Accés obert
      Repositioning operations are fundamental on bike-sharing systems. Its optimization is necessary in order to achieve the best level of service with minimum agency cost. Literature propose routing models that preventively ...

    • 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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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
      Accés obert
      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 energy model for the Lakshadweep islands : Change from a diesel-based model to a hybrid model with renewable energy systems considering the ecological fragility of the islands 

      Alcoverro Colom, Pau (Universitat Politècnica de Catalunya, 2019-10-09)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      Realitzat a/amb:   Högskolan i Gävle
      Reducing dependence on fossil fuels is the need of the hour as climate change threatens to disrupt the world’s ecosystems. Nowhere are these effects more apparent than in small oceanic coral atolls. Balancing the energy ...

    • A new epoxy based layered silicate nanocomposite using a hyperbranched polymer: study of the curing reaction and nanostructure development 

      Cortés Izquierdo, María Pilar; Fraga Rivas, Iria; Calventus Solé, Yolanda; Hutchinson, John M. (2013)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      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, María Pilar; Fraga Rivas, Iria; Calventus Solé, Yolanda; Román Concha, Frida Rosario; Hutchinson, John M.; Ferrando Piera, Francesc (2014-03-01)
      Article
      Accés obert
      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 equilibrated residual method improving accuracy and efficiency of flux-free error estimates 

      Parés Mariné, Núria; Díez, Pedro (2017-01-01)
      Article
      Accés obert
      This paper presents a new methodology to compute guaranteed upper bounds for the energy norm of the error in the context of linear finite element approximations of the reaction–diffusion equation. The new approach revisits ...

    • A new era of coastal services 

      Carniel, Sandro; Bonaldo, Davide; Sánchez-Arcilla Conejo, Agustín (2018-01)
      Article
      Accés restringit per política de l'editorial
      The increasing quality and quantity of information provided by Copernicus (the European Union Programme funneling Earth Observation and in situ data into a broad set of information services) offer the possibility to analyse ...

    • 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
      Accés obert
      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), ...