Ara es mostren els items 6895-6914 de 244457

    • A single leg switched PWM method for three-phase H-bridge voltage source converters 

      Senturk, Osman S.; Munk-Nielsen, Stig; Teodorescu, Remus; Helle, Lars; Rodríguez Cortés, Pedro (2009)
      Comunicació de congrés
      Accés obert
      This paper proposes a single leg switched or a hybrid PWM (HPWM) method for three-phase three-level HBridge Voltage Source Converters (3L-HB-VSCs). By means of the proposed modulation, a 3L-HB-VSC can generate the ...
    • A single scaling parameter as a first approximation to describe the rainfall pattern of a place: application on Catalonia 

      Casas Castillo, M. del Carmen; Llabrés Brustenga, Alba; Rius, Anna; Rodríguez Solá, Raúl; Navarro Bosque, Javier (2018-02-17)
      Article
      Accés obert
      As well as in other natural processes, it has been frequently observed that the phenomenon arising from the rainfall generation process presents fractal self-similarity of statistical type, and thus, rainfall series generally ...
    • A single-center, randomized, double-blind, placebo-controlled study of interferon beta-1b on primary progressive and transitional multiple sclerosis 

      Rovira, Àlex; Nos, Carlos; Montalbán, Xavier; Sastre-Garriga, Jaume; Tintoré, Maria del Mar; Brieva, Luis; Aymerich Martínez, Francisco Javier; Río, Jordi; Porcel, Joana; Borrás, Cecilia (2009-10)
      Article
      Accés restringit per política de l'editorial
      Inflammation and neurodegeneration may have differential impacts on disease evolution in the different forms of multiple sclerosis. However, a beneficial effect of immunomodulatory drugs should not be ruled out in primary ...
    • A single-residue substitution inhibits fibrillization of Ala-based pentapeptides. A spectroscopic and molecular dynamics investigation 

      Caruso, M.; Gatto, Emanuela; Placidi, E.; Venanzi, Mariano; Ballano Ballano, María Gema; Formaggio, Fernando; Toniolo, Claudio; Zanuy Gomara, David; Alemán Llansó, Carlos (2014-01-01)
      Article
      Accés obert
      The aggregation properties of two Ala-based pentapeptides were investigated by spectroscopic techniques and molecular dynamics (MD) simulations. The two peptides, both functionalized at the N-terminus with a pyrenyl group, ...
    • A Single-Step Smoothing-Differentiation Procedure Using the Newmark Method 

      Alonso Sánchez, Francisco Javier; Cuadrado Aranda, Javier; Font Llagunes, Josep Maria; Pintado, Publio (International Society of Biomechanics, 2009)
      Comunicació de congrés
      Accés restringit per política de l'editorial
    • A singular initial value problem to construct density-equalizing maps 

      Avinyó Andrés, Albert; Solà-Morales Rubió, Joan de; València Guitart, Marta (2011-12)
      Article
      Accés restringit per política de l'editorial
      The diffusion-based algorithm to produce density-equalizing maps interprets diffusion as an advection process. This algorithm uses the dynamics of a flow that is defined by an initial value problem that turns out to be ...
    • A singular initial value problem to construct density-equalizing maps 

      Avinyó Andrés, Albert; Solà-Morales Rubió, Joan de; València Guitart, Marta (2011-05)
      Report de recerca
      Accés obert
      The diffusion-based algorithm to produce density-equalizing maps interprets diffusion as an advection process. This algorithm uses the dynamics of a flow that is defined by an initial value problem that turns out to be ...
    • A singularity-free path planner for closed-chain manipulators 

      Bohigas Nadal, Oriol; Henderson, Michael E.; Ros Giralt, Lluís; Porta Pleite, Josep Maria (IEEE, 2012)
      Text en actes de congrés
      Accés obert
      This paper provides an algorithm for computing singularity-free paths on non-redundant closed-chain manipulators. Given two non-singular configurations of the manipulator, the method attempts to connect them through a ...
    • A singularity-robust LQR controller for parallel robots 

      Bordalba Llaberia, Ricard; Porta Pleite, Josep Maria; Ros Giralt, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés obert
      Parallel robots exhibit the so-called forward singularities, which complicate substantially the planning and control of their motions. Often, such complications are circumvented by restricting the motions to singularity-free ...
    • A situational approach for the definition and tailoring of a data-driven software evolution method 

      Franch Gutiérrez, Javier; Ralyté, Jolita; Perini, Anna; Abelló Gamazo, Alberto; Ameller, David; Gorroñogoitia, Jesús; Nadal Francesch, Sergi; Oriol Hilari, Marc; Seyff, Norbert; Siena, Alberto; Susi, Angelo (Springer, 2018)
      Text en actes de congrés
      Accés obert
      Successful software evolution heavily depends on the selection of the right features to be included in the next release. Such selection is difficult, and companies often report bad experiences about user acceptance. To ...
    • A situational judgement test for engineers to evaluate their professional strengths & weaknesses 

      Carthy, Darren; Craps, Sofie; Greet, Langie; Gaughan, Kevin; Bowe, Brian (Universitat Politècnica de Catalunya, 2022-09)
      Text en actes de congrés
      Accés obert
      This paper reports on the development and evaluation of a 23 item Situational Judgement Test (SJT) with scenarios tailored to the engineering profession. The SJT was developed around the PREFER model, with the support of ...
    • A skeleton for the Tabu search metaheuristic with applications to problems in software engineering 

      Blesa Aguilera, Maria Josep; Xhafa Xhafa, Fatos (2001-06)
      Report de recerca
      Accés obert
      We present a C++ implementation of a skeleton for Tabu Search method. Tabu Search method is a well-known meta-heuristic that has proved successful for sub-optimally solving hard combinatorial optimization problems. Recently ...
    • A skewness-aware matrix factorization approach for mesh-structured cloud services 

      Fu, Yongquan; Li, Dongsheng; Barlet Ros, Pere; Huang, Chun; Huang, Zhen; Shen, Siqi; Su, Huayou (2019-08)
      Article
      Accés obert
      Online cloud services need to fulfill clients' requests scalably and fast. State-of-the-art cloud services are increasingly deployed as a distributed service mesh. Service to service communication is frequent in the mesh. ...
    • A sliding mode control for a wound rotor synchronous generator with an isolated RL load 

      Muñoz Aguilar, Raúl Santiago; Dòria Cerezo, Arnau; Fossas Colet, Enric (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
      Comunicació de congrés
      Accés obert
      In this paper a sliding mode controller for the stator voltage amplitude of a stand-alone wound rotor synchronous generator is presented. The standard dq-model of the electrical machine connected to an isolated inductive ...
    • A sliding mode controlled three wheeled narrow vehicle 

      Fossas Colet, Enric; Roqueiro, Nestor; Gaudezi de Faria, Marcelo (2013)
      Article
      Accés restringit per política de l'editorial
      This paper presents a sliding mode controller for a narrow tilting three-wheeled vehicle. The vehicle is modelled as a dynamic eighteen-order system with two inputs and two outputs, however, a simple third-order model of ...
    • A slow and complex landslide under static and seismic action 

      Pinyol Puigmartí, Núria Mercè; Carluccio, Gaia di; Alonso Pérez de Agreda, Eduardo (2022-02)
      Article
      Accés obert
      A dam construction project for the heightening of a dam is threatened by a large landslide located in the Spanish Southern Pyrenees. A marked syncline structure, folding a flysch formation overlying a marl substratum, is ...
    • A Small Baseline DIFSAR Approach for Investigating Deformations on Full Resolution SAR Interferograms 

      Lanari, Ricardo; Mora Sacristan, Óscar; Manunta, Michele; Mallorquí Franquet, Jordi Joan; Berardino, P.; Sansoti, Eugenio (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2004-07-31)
      Article
      Accés obert
      This paper presents a differential synthetic aperture radar (SAR) interferometry (DIFSAR) approach for investigating deformation phenomena on full-resolution DIFSAR interferograms. In particular, our algorithm extends ...
    • A smart and flexible perception framework for robotic manipulation 

      Dalmases Mendoza, Albert (Universitat Politècnica de Catalunya, 2023-09-20)
      Projecte Final de Màster Oficial
      Accés obert
      Aquesta tesi presenta la implementació d’un marc de percepció robòtica avançada destinat a millorar la capacitat d’un robot per interpretar i interactuar amb el seu entorn. Donada la creixent presència de la robòtica en ...
    • A smart chair to monitor sitting posture by capacitive textile sensors 

      Martínez Estrada, Marc; Vuohijoki, Tiina; Poberznik, Anja; Shaikh, Asif; Virkki, Johanna; Gil Galí, Ignacio; Fernández García, Raúl (Multidisciplinary Digital Publishing Institute (MDPI), 2023-07-05)
      Article
      Accés obert
      In this paper, a smart office chair with movable textile sensors to monitor sitting position during the workday is presented. The system consists of a presence textile capacitive sensor with different levels of activation ...
    • A smart current control of a measurement station for superconducting cable test 

      Arpaia, Pasquale; Ballarino, Amalia; Daponte, Vincenzo; Maisto, Domenico; Montenero, Giuseppe; Svelto, Cesare (SARTI, 2013)
      Article
      Accés obert