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    • Double hardening soil model for soil behavior. Formulation, implementation and application 

      He, Lu (Universitat Politècnica de Catalunya, 2016-06-20)
      Projecte Final de Màster Oficial
      Accés obert
      The aim of this thesis is the application and validation of a Double Hardening Soil Model(DHSM). In this model, two hardening mechanism are comprised named volumetric hardening from a unified Critical state model for ...

    • Double image encryption system using a nonlinear joint transform correlator in the Fourier domain 

      Pérez, Ronal A; Pérez Cabré, Elisabet; Vilardy Ortiz, Juan Manuel; Millán Garcia-Varela, M. Sagrario; Torres Moreno, Cesar Orlando (Multidisciplinary Digital Publishing Institute (MDPI), 2023-02-02)
      Article
      Accés obert
      In this work, we present a new nonlinear joint transform correlator (JTC) architecture in the Fourier domain (FD) for the encryption and decryption of two simultaneous images. The main features of the proposed system are ...

    • Double materiality as a crucial instrument for sustainable business strategies 

      Rubial Arias, Patricia (Universitat Politècnica de Catalunya, 2024-02-08)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Corporate Social Responsibility, sustainability, ESG criteria, and SDGs, among others, are terms weincreasingly hear in our daily lives, both in the business and personal spheres, as all companiesandindividualswanttobepa ...

    • Double multi-head attention for speaker verification 

      India Massana, Miquel Àngel; Safari, Pooyan; Hernando Pericás, Francisco Javier (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Text en actes de congrés
      Accés obert
      Most state-of-the-art Deep Learning systems for text-independent speaker verification are based on speaker embedding extractors. These architectures are commonly composed of a feature extractor front-end together with a ...

    • Double Optical Feedback Interferomety for biomedical applications 

      Arasanz Tena, Andrés (Universitat Politècnica de Catalunya, 2013-07-19)
      Projecte Final de Màster Oficial
      Accés obert
      [ANGLÈS] Optical Feedback Interferometry (OFI) and Double Optical Feedback interferometry (DOFI) are studied as non-invasive techniques for biomedical measurements. Due to its compactness and cost-effectiveness, both sensors ...

    • Double peripheries: homelessness on the edge of the city of Barcelona: the case of Poblenou 

      Serra Permanyer, Marta; Bitrian Varea, Carlos (Ediciones Asimétricas, 2022)
      Text en actes de congrés
      Accés obert
      This research questions the nature of a periphery based on a doubly peripheral case study (regarding both territorial and social aspects): a non-central neighbourhood in Barcelona in which much homelessness is concentrated. ...

    • Double primary relaxation in a highly anisotropic orientational glass-former with low-dimensional disorder 

      Romanini, Michela; Barrio Casado, María del; Capaccioli, Simon; Ruíz Martín, María Dolores; Macovez, Roberto; Tamarit Mur, José Luis (2016-04-26)
      Article
      Accés obert
      The freezing of the cooperative reorientational motions in orientationally disordered (OD) molecular crystals marks the so-called \glassy" transition, which may be considered a lower-dimensional version of the structural ...

    • Double Punch Test to control the energy dissipation in tension of FRC (Barcelona test) 

      Molins i Borrell, Climent; Aguado de Cea, Antonio; Saludes Requena, Sergio (RILEM, 2008)
      Article
      Accés obert
      Current testing methods used to measure tensile properties of Fiber Reinforced Concrete(FRC) are mainly based on bending test of beam specimens. They normally show a considerable scatter that makes difficult the quality ...

    • Double quasi - balanced meter for measurement of inductor quality factor 

      Cichy, Adam; Skórkowski, Artur; Barwinek, Sebastian (SARTI, 2013)
      Article
      Accés obert

    • Double resonant character in an optical cavity for high performance and stable polymer solar cells 

      Liu, Quan (Universitat Politècnica de Catalunya, 2018-03-23)
      Tesi
      Accés obert
      Realitzat a/amb:   Karlsruher Institut für Technologie
      Solution-processed thin film solar cells emerged as very promising photovoltaic technologies suitable for a low cost roll-to-roll upscale production. Such thin film character also ensures lightweight and flexibility for ...

    • Double Shock Control Bump Design Optimization Using Hybridised Evolutionary Algorithms 

      Lee, DongSeop; Periaux, Jacques; Pons-Prats, Jordi; Bugeda Castelltort, Gabriel; Oñate Ibáñez de Navarra, Eugenio (IEEE Computer Society Publications, 2010)
      Text en actes de congrés
      Accés obert
      The paper investigates two advanced optimisation methods for solving active flow control device shape design problem and also compares their optimisation efficiency in terms of computational cost and design quality. The ...

    • Double shrinkage correction in sample LMMSE estimation 

      Serra, Jordi; Nájar Martón, Montserrat (European Association for Signal Processing (EURASIP), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The sample linear minimum mean square error (LMMSE) es- timator undergoes high performance degradation in the small sample size regime. Herein a double shrinkage correction is proposed to alleviate this problem. First, ...

    • Double space-time loop in drawing learning: from atelier to urban fieldwork practices 

      Roig, Eduardo; Amann Alcover, Atxu; Ruiz, Ángela; Sève, Bruno (Springer, 2024)
      Capítol de llibre
      Accés restringit per política de l'editorial
      The teaching strategy of the course ‘Drawing, Analysis and Ideation’ taught in the first year of the Degree in Foundations of Architecture demands an active role for students that goes beyond the consumption of didactic ...

    • Double squirrel cage induction motors: a new approach to detect rotor bar failures 

      Di Tommaso, A.O; Miceli, R.; Spataro, C. (SARTI, 2013)
      Article
      Accés obert

    • Double-electron ionization driven by inhomogeneous fields 

      Chacón, A.; Ortmann, L.; Cucchietti, Fernando; Suárez, N.; Pérez-Hernández, J.A.; Ciappina, M.F.; Landsman, A.S.; Lewenstein, Maciej (Springer International Publishing, 2017-04)
      Article
      Accés obert
      Electron–electron correlation effects play a crucial role in our understanding of sequential (SDI) and non-sequential double ionization (NSDI) mechanisms. Here, we present a theoretical study of NSDI driven by plasmonic-enhanced ...

    • Double-frequency buck converter as a candidate topology for integrated envelope elimination and restoration applications in power supply of RFPAs 

      Saberkari, Alireza; Shirmohammadli, V.; Martínez García, Herminio; Alarcón Cot, Eduardo José (2015-09-17)
      Article
      Accés obert
      This paper proposes the use of double-frequency (DF) buck converter architecture consisting of a merged structure of high and low frequency buck cells as a candidate topology for envelope elimination and restoration (EER) ...

    • Double-lap shear test on laminated glass specimens under diverse ageing conditions 

      Centelles Soler, Xavier; Castro Chicot, Josep Ramon; Cabeza Fabra, Luisa Fernanda (2020-06-20)
      Article
      Accés obert
      Laminated glass is a composite laminate obtained from combining two or more glass layers with a polymeric interlayer. The adhesion between glass and interlayer, as well as the shear strength and stiffness of the interlayer, ...

    • Double-layer graphene for enhanced tunable infrared plasmonics 

      Rodrigo, Daniel; Tittl, Andreas; Lima, Odeta; García de Abajo, Francisco Javier; Pruneri, Valerio; Altug, Hatice (Nature, 2017-06-02)
      Article
      Accés obert
      Graphene is emerging as a promising material for photonic applications owing to its unique optoelectronic properties. Graphene supports tunable, long-lived and extremely confined plasmons that have great potential for ...

    • Double-pass measurements of retinal image quality in monofocal contact lens wearers 

      Torrents Gómez, Aurora; Gispets Parcerisas, Joan; Pujol Ramo, Jaume (1997-01)
      Article
      Accés restringit per política de l'editorial
      The double-pass method is applied to determine the optical image quality in monofocal contact lens (CL) wearers. This is an objective non-invasive technique that permits in vivo testing of the optical performance of CL ...

    • Double-pass technique and compensation-comparison method in eyes with cataract 

      Martínez Roda, Juan Antonio; Vilaseca Ricart, Meritxell; Ondategui Parra, Juan Carlos; Almudí Cortés, Lorena; Asaad Ammaar, Mouafk; Mateos Pena, Lorena; Arjona Carbonell, Mª Montserrat; Pujol Ramo, Jaume (2016-10-30)
      Article
      Accés obert
      PURPOSE To clinically assess the objective scatter index (OSI) obtained from double-pass images and the log(s) parameter measured with the direct compensation-comparison psychophysical technique in eyes with cataract. ...