Ara es mostren els items 12573-12592 de 86182

  • Blind channel equalization using weighted subspace methods 

    Ruiz Feliu, Rafael; Cabrera Beán, Margarita Asuncion (Institute of Electrical and Electronics Engineers (IEEE), 1999)
    Text en actes de congrés
    Accés obert
    This paper addresses the problems of blind channel estimation and symbol detection with second order statistics methods from the received data. It can be shown that this problem is similar to direction of arrival (DOA) ...
  • Blind channel estimation and data detection using hidden Markov models theory 

    Antón Haro, Carles; Rodríguez Fonollosa, José Adrián; Rodríguez Fonollosa, Javier (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1997-01-01)
    Article
    Accés obert
    In this correspondence, we propose applying the hidden Markov models (HMM) theory to the problem of blind channel estimation and data detection. The Baum–Welch (BW) algorithm, which is able to estimate all the parameters ...
  • Blind multiuser detection with array observations 

    Rodríguez Fonollosa, Javier; Zvonar, Z; Rodríguez Fonollosa, José Adrián; Catala, J (1998-01)
    Article
    Accés obert
    Cochannel interference is usually a major limitation to the performance of mobile wireless systems. Examples of different forms of cochannel interference include multi-access interference in CDMA systems and cochannel ...
  • Blind restoration of retinal images degraded by space-variant blur with adaptive blur estimation 

    Marrugo Hernández, Andrés Guillermo; Millán Garcia-Varela, M. Sagrario; Šorel, M.; Šroubek, F. (2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
  • Blind wideband source separation 

    Nájar Martón, Montserrat; Lagunas Hernandez, Miguel A.; Bonet, I (1994)
    Text en actes de congrés
    Accés obert
    This paper deals with the general problem of separating two independent wideband sources when they are mixed by unknown filters. In order to solve this problem, a backward framework is proposed which is composed of two ...
  • Blink rate and incomplete blinks in six different controlled hard-copy and electronic reading conditions 

    Argilés Sans, Marc; Cardona Torradeflot, Genís; Pérez Cabré, Elisabet; Rodríguez Montiel, Margarita (2015-10)
    Article
    Accés obert
    Purpose: to evaluate spontaneous blink rate (SEBR) and percentage of incomplete blinks in different hard-copy and visual display terminal (VDT) reading conditions, as compared with baseline conditions. Methods: A sample ...
  • Blinking and driving: the influence of saccades and cognitive workload 

    Cardona Torradeflot, Genís; Quevedo, Noa (2014-03)
    Article
    Accés obert
  • Blinking supervision in a working environment 

    Morcego Seix, Bernardo; Argilés Sans, Marc; Cabrerizo, Marc; Cardona Torradeflot, Genís; Pérez Magrané, Ramon; Pérez Cabré, Elisabet; Gispets Parcerisas, Joan (2016-02-02)
    Article
    Accés obert
    The health of the ocular surface requires blinks of the eye to be frequent in order to provide moisture and to renew the tear film. However, blinking frequency has been shown to decrease in certain conditions, such as when ...
  • Blisk fabrication by LFW 

    Mateo García, Antonio Manuel (In-Teh (www.intechweb.org), 2011-11-01)
    Capítol de llibre
    Accés restringit per política de l'editorial
  • Bloc d'optativitat d'enginyeria i sostenibilitat a l'EUETIT 

    Escribano Rodríguez de Robles, Beatriz; Sabater Pruna, M. Assumpta; Martínez Magaña, Juan (Centre per a la Sostenibilitat, 2007-07-12)
    Text en actes de congrés / Comunicació de congrés
    Accés obert
    En aquesta ponència es presenta el bloc d’optativitat de l’EUETIT titulat Enginyeria i sostenibilitat, que està format per tres assignatures de 5 ECTS cadascuna i s’ofereix a les sis titulacions de l’Escola.
  • Bloch oscillations in optical and Zeeman lattices in the presence of spin-orbit coupling 

    Kartashov, Yaroslav V.; Konotop, Vladimir V; Zezyulin, Dmitry A; Torner Sabata, Lluís (2016-11-18)
    Article
    Accés obert
    We address Bloch oscillations of a spin-orbit coupled atom in periodic potentials of two types: optical and Zeeman lattices. We show that in optical lattices the spin-orbit coupling allows controlling the direction of ...
  • Block coordinate descent decomposition for statistical data protection using controlled tabular adjustment 

    González Alastrué, José Antonio; Castro Pérez, Jordi (2009-10)
    Report de recerca
    Accés restringit per acord de confidencialitat
    Tabular data is routinely released by national statistical agencies (NSA) to disseminate aggregated information from some particular microdata. Prior to publication, these tables have to be treated to preserve information ...
  • Block disabling characterization and improvements in CMPs operating at ultra-low voltages 

    Ferrerón, Alexandra; Suárez Gracia, Darío; Alastruey, Jesús; Monreal Arnal, Teresa; Viñals Yufera, Víctor (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Text en actes de congrés
    Accés obert
    Power density has become the limiting factor in technology scaling as power budget restricts the amount of hardware that can be active at the same time. Reducing supply voltage to ultra-low voltage ranges close to the ...
  • Block Interior Garden. Les Corts Library 

    Ravetllat Mira, Pere Joan; Ribas Seix, Carme (Busan International Atchitectural Culture Festival, 2013-11-30)
    Capítol de llibre
    Accés restringit per política de l'editorial
  • Block recursive LU preconditioners for the thermally coupled incompressible inductionless MHD problem 

    Badia, Santiago; Martín Huertas, Alberto Francisco; Planas Badenas, Ramon (2013)
    Report de recerca
    Accés obert
    The thermally coupled incompressible inductionless magnetohydrodynamics (MHD) problem models the ow of an electrically charged fuid under the in uence of an external electromagnetic eld with thermal coupling. This system ...
  • Block-based execution on an integrated vector-scalar in-order core 

    Stanic, Milan; Palomar Pérez, Óscar (Barcelona Supercomputing Center, 2015-05-05)
    Text en actes de congrés
    Accés obert
    In the low-end processor mobile market, power, energy and area budgets are significantly lower than in the server/desktop/lap-top/high-end mobile markets. It has been shown that vector processors are a highly energy-efficient ...
  • Blockade of the interaction of calcineurin with foxo in astrocytes protects against Aß-induced neuronal death 

    Hervas, Rubén; Dominguez Fraile, Manuel; Garrido, Victoria; Gomez-Gutierrez, Patricia; Pérez González, Juan Jesús; Torres Aleman, Ignacio (2016-06-23)
    Article
    Accés obert
    Astrocytes actively participate in neuro-inflammatory processes associated to Alzheimer’s disease (AD), and other brain pathologies. We recently showed that an astrocyte-specific intracellular signaling pathway involving ...
  • Blocking anonymized data 

    Nin Guerrero, Jordi; Torra i Reventós, Vicenç (2007)
    Text en actes de congrés
    Accés obert
    Nowadays, privacy is an important issue, for this reason many researchers are working in the development of new data protection methods. The aim of these methods is to minimize the disclosure risk (DR) preserving the data ...
  • Blocking methods to prevent non-specific adhesion of mesenchymal stem cells to titanium and evaluate the efficiency of surface functionalization: albumin vs poly(ethylene glycol) coating 

    Fraioli, Roberta; Manero Planella, José Maria; Gil Mur, F. Javier; Mas-Moruno, Carlos
    Article
    Accés obert
    Surface modification of biocompatible materials with biologically-active molecules is a well-known strategy to enhance the osteointegration of implantable devices. In order to evaluate the efficiency of these treatments, ...
  • Blocking the k-holes of point sets in the plane 

    Cano, Javier; Garcia Olaverri, Alfredo Martin; Hurtado Díaz, Fernando Alfredo; Shakai, Toshinori; Tejel Altarriba, Francisco Javier; Urrutia Galicia, Jorge (2015-09)
    Article
    Accés obert
    Let P be a set of n points in the plane in general position. A subset H of P consisting of k elements that are the vertices of a convex polygon is called a k-hole of P, if there is no element of P in the interior of its ...