Ara es mostren els items 3882-3901 de 90854

  • Accuracy assessment of leak localisation method depending on available measurements 

    Pérez Magrané, Ramon; Cugueró Escofet, Miquel Àngel; Cugueró Escofet, Josep; Sanz Estapé, Gerard (2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Model-based leak localization methods are currently developed and applied to real cases. The performance and success of such methods depend highly both on models [Pérez et al. (2011a)] and the measurements available. The ...
  • Accuracy assessment of SAR interferometry using the ERS-1 

    Broquetas Ibars, Antoni (Institute of Electrical and Electronics Engineers (IEEE), 1995)
    Text en actes de congrés
    Accés obert
    A SAR raw data simulator and a SAR processor are used as a tool for performance assessment of SAR interferometry algorithms like the multi-baseline and multifrequency. Traditional algorithms have also been tested with real ...
  • Accuracy considerations in microstrip surface impedance measurements 

    O'Callaghan Castellà, Juan Manuel; Sans, C.; Collado Gómez, Juan Carlos; Canet Grau, Eduard; Pous Andrés, Rafael; Fontcuberta, Josep (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1997-06-30)
    Article
    Accés obert
    An approach is proposed for the design, measurement and data extraction of superconducting microstrip resonators used in determination of surface resistance and penetration depth. Major sources of error are analyzed and ...
  • Accuracy considerations in surface impedance measurements 

    O'Callaghan Castellà, Juan Manuel; Sans, C; Pous Andrés, Rafael; Collado Gómez, Juan Carlos; Canet, E (1997-06)
    Article
    Accés obert
    An approach is proposied for the design, measurement and data extraction of superconducting microstrip resonators used in determination of surface resistance and penetration depth. Major sources of error are analyzed and ...
  • Accuracy evaluation of probabilistic location methods in UWB-RFID systems 

    Núñez Álvarez, Christian; Crespo Cintas, Cristian (Universitat Politècnica de Catalunya, 2010-06-01)
    Projecte Final de Màster Oficial
    Accés obert
  • Accuracy of heart rate variability estimation by photoplethysmography using an smartphone : processing optimization and fiducial point selection 

    Ferrer Mileo, Víctor; Guede Fernández, Federico; Fernández Chimeno, Mireya; Ramos Castro, Juan José; García González, Miguel Ángel (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Text en actes de congrés
    Accés obert
    This work compares several fiducial points to detect the arrival of a new pulse in a photoplethysmographic signal using the built-in camera of smartphones or a photoplethysmograph. Also, an optimization process for ...
  • Accuracy of ionospheric models used in GNSS and SBAS: methodology and analysis 

    Rovira Garcia, Adrià; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; González Casado, Guillermo; Ibáñez Segura, Deimos (2016-03-01)
    Article
    Accés restringit per acord de confidencialitat
    © 2015, Springer-Verlag Berlin Heidelberg. The characterization of the accuracy of ionospheric models currently used in global navigation satellite systems (GNSSs) is a long-standing issue. The characterization remains a ...
  • Accuracy of two stress update algorithms for shear-free large deformations paths 

    Rodríguez Ferran, Antonio; Huerta, Antonio (1999-06)
    Article
    Accés obert
    The behavior of two stress update algorithms for shear-free large deformation paths is analyzed. The first algorithm has a truncation error of order 1. The second algorithm has a truncation error of order 2. As a consequence, ...
  • Accurate and automatic NOAA-AVHRR image navigation using a global contour matching approach 

    Eugenio, F; Marqués Acosta, Fernando; Gómez, L; Suarez, E; Rovaris, E (2000)
    Text en actes de congrés
    Accés obert
    The problem of precise and automatic AVHRR image navigation is tractable in theory, but has proved to be somewhat difficult in practice. The authors' work has been motivated by the need for a fully automatic and operational ...
  • Accurate and linear time pose estimation from points and lines 

    Vakhitov, A.; Funke, Jan; Moreno-Noguer, Francesc (2016)
    Text en actes de congrés
    Accés obert
    The Perspective-n-Point (PnP) problem seeks to estimate the pose of a calibrated camera from n 3Dto-2D point correspondences. There are situations, though, where PnP solutions are prone to fail because feature point ...
  • Accurate and wide field of view MEMS-based sun sensor for industrial applications 

    Delgado, Francisco; Quero, J.M.; Garcia Ortega, Juan; López Tarrida, Cristina; Ortega Villasclaras, Pablo Rafael; Bermejo Broto, Sandra (IEEE Press. Institute of Electrical and Electronics Engineers, 2012-02-24)
    Article
    Accés restringit per política de l'editorial
    This paper describes the design, fabrication, simulation, and experimental results of an improved miniaturized two-axis sun sensor for industrial applications, created by adapting a technology used previously in satellite ...
  • Accurate Bearing Faults Classification based on Statistical-Time Features, Curvilinear Component Analysis and Neural Networks 

    Delgado Prieto, Miquel; Cirrincione,, Giansalvo; García Espinosa, Antonio; Ortega Redondo, Juan Antonio; Henao, Humberto (2012)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Bearing faults are the commonest form of malfunction associated with electrical machines. So far, the research has been carried out mainly in the detection of localized faults, but the diagnosis of distributed faults ...
  • Accurate determination of the frequency response function of submerged and confined structures by using PZT-patches 

    Presas Batlló, Alexandre; Valentín Ruiz, David; Egusquiza Estévez, Eduard; Valero Ferrando, M.del Carmen; Egusquiza Montagut, Mònica; Bossio, Matias (2017-03-22)
    Article
    Accés obert
    To accurately determine the dynamic response of a structure is of relevant interest in many engineering applications. Particularly, it is of paramount importance to determine the Frequency Response Function (FRF) for ...
  • Accurate geolocation of rfi sources in smos imagery based on superresolution algorithms 

    Hyuk, Park; Camps Carmona, Adriano José; González Gambau, Veronica (2014)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Accurate geolocation of SMOS RFI sources is very important for effectively switching-off the illegal emitter in the protected L-band. We present a novel approach for the geolocation of SMOS RFI sources, based on the Direction ...
  • Accurate human body tracking from multiple RGBZ sensors 

    Carruesco Llorens, Álex (Universitat Politècnica de Catalunya, 2014-06-26)
    Treball Final de Grau
    Accés obert
    [CATALÀ] En aquest projecte s'ha desenvolupat un software que permet calibrar càmeres Kinect i reconèixer gestos amb múltiples Kinect a partir de la informació de profunditat. El software s'ha dissenyat per a que pugui ...
  • Accurate multi-modal image registration using compression 

    Vázquez Alcocer, Pere Pau; Marco Gómez, Jordi (IADIS Press, 2011)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Image registration is an important task in medicine, especially when images have been acquired by different scanner/sensor types, since they provide information on different body structures (bones, muscles, vessels...). ...
  • Accurate numerical modeling of the TARA reflector system 

    Heldring, Alexander; Rius Casals, Juan Manuel; Ligthart, Leo P.; Cardama Aznar, Ángel (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2004-07-31)
    Article
    Accés obert
    The radiation pattern of the large parabolic reflectors of the Transportable Atmospheric RAdar system (TARA), developed at Delft University of Technology, has been accurately simulated. The electric field integral ...
  • Accurate off-line phase classification for HW/SW co-designed processors 

    Brankovic, Aleksandar; Stavrou, Kyriakos; Gibert Codina, Enric; González Colás, Antonio María (Association for Computing Machinery (ACM), 2014)
    Text en actes de congrés
    Accés obert
    Evaluation techniques in microprocessor design are mostly based on simulating selected application's samples using a cycle-accurate simulator. These samples usually correspond to different phases of the application stream. ...
  • Accurate recovery-based upper error bounds for the extended finite element framework 

    Ródenas García, Juan José; González Estrada, O. A.; Díez, Pedro; Fuenmayor, F. J. (2010-08-01)
    Article
    Accés obert
    This paper introduces a recovery-type error estimator yielding upper bounds of the error in energy norm for linear elastic fracture mechanics problems solved using the extended finite element method (XFEM). The paper can ...
  • Accurate upper and lower error bounds by solving flux-free local problems in 

    Díez, Pedro; Parés Mariné, Núria; Huerta, Antonio (2004-12)
    Article
    Accés obert
    Two implicit residual type estimators yielding upper bounds of the error are presented which do not require flux equilibration. One of them is based on the ideas introduced in [MAC 00, CAR 99, MOR 03, PRU 02]. The new ...